Scan for audio properties, metadata, and embedded images in one single pass. Removed now useless lmsmetadata library + reworked code accordingly

README.md

@@ -54,7 +54,7 @@ __Note__: If no name is provided in the `artist.nfo` file, the name of the conta
 ### Filtering
 It is possible to apply global filters on your collection using `genre`, `mood`, `grouping`, `language`, and by music library. More tags, including custom ones, can be added in the database administration settings.
 
-__Note__: You can use the `lms-metadata` tool to get an idea of the tags parsed by _LMS_.
+__Note__: You can use the `lms-audioinfo` tool to get an idea of the tags parsed by _LMS_.
 
 ### Multiple artists
 _LMS_ works best when using the default [Picard](https://picard.musicbrainz.org/) settings, where the `artist` tag contains a single display-friendly value, and the `artists` tag holds the actual artist names. This ensures a cleaner, more organized representation of artist names, when multiple artists are involved.

src/libs/CMakeLists.txt

@@ -1,8 +1,7 @@
-add_subdirectory(av)
+add_subdirectory(audio)
 add_subdirectory(core)
 add_subdirectory(database)
 add_subdirectory(image)
-add_subdirectory(metadata)
 add_subdirectory(services)
 add_subdirectory(som)
 add_subdirectory(subsonic)

src/libs/audio/CMakeLists.txt

@@ -0,0 +1,40 @@
+pkg_check_modules(LIBAV IMPORTED_TARGET libavcodec libavutil libavformat)
+pkg_check_modules(Taglib REQUIRED IMPORTED_TARGET taglib)
+
+add_library(lmsaudio STATIC
+	impl/ffmpeg/AudioFile.cpp
+	impl/ffmpeg/AudioFileInfo.cpp
+	impl/ffmpeg/ImageReader.cpp
+	impl/ffmpeg/TagReader.cpp
+	impl/ffmpeg/Transcoder.cpp
+	impl/ffmpeg/Utils.cpp
+	impl/taglib/AudioFileInfo.cpp
+	impl/taglib/ImageReader.cpp
+	impl/taglib/TagReader.cpp
+	impl/taglib/Utils.cpp
+	impl/AudioTypes.cpp
+	impl/ImageReader.cpp
+	impl/ParseAudioFileInfo.cpp
+	impl/TagReader.cpp
+	)
+
+target_include_directories(lmsaudio INTERFACE
+	include
+	)
+
+target_include_directories(lmsaudio PRIVATE
+	include
+	${AVCODEC_INCLUDE_DIR}
+	${AVFORMAT_INCLUDE_DIR}
+	${AVUTIL_INCLUDE_DIR}
+	)
+
+target_link_libraries(lmsaudio PUBLIC
+	lmscore
+	std::filesystem
+	)
+
+target_link_libraries(lmsaudio PRIVATE
+	PkgConfig::LIBAV
+	PkgConfig::Taglib
+	)

src/libs/audio/impl/AudioTypes.cpp

@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2025 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "audio/AudioTypes.hpp"
+
+namespace lms::audio
+{
+    core::LiteralString containerTypeToString(ContainerType type)
+    {
+        switch (type)
+        {
+        case ContainerType::AIFF:
+            return "AIFF";
+        case ContainerType::APE:
+            return "APE";
+        case ContainerType::ASF:
+            return "ASF";
+        case ContainerType::DSF:
+            return "DSF";
+        case ContainerType::FLAC:
+            return "FLAC";
+        case ContainerType::MP4:
+            return "MP4";
+        case ContainerType::MPC:
+            return "MPC";
+        case ContainerType::MPEG:
+            return "MPEG";
+        case ContainerType::Ogg:
+            return "Ogg";
+        case ContainerType::Shorten:
+            return "Shorten";
+        case ContainerType::TrueAudio:
+            return "TrueAudio";
+        case ContainerType::WAV:
+            return "WAV";
+        case ContainerType::WavPack:
+            return "WavPack";
+        }
+
+        return "";
+    }
+
+    core::LiteralString codecTypeToString(CodecType type)
+    {
+        switch (type)
+        {
+        case CodecType::AAC:
+            return "AAC";
+        case CodecType::AC3:
+            return "AC3";
+        case CodecType::ALAC:
+            return "ALAC";
+        case CodecType::APE:
+            return "APE";
+        case CodecType::EAC3:
+            return "EAC3";
+        case CodecType::DSD:
+            return "DSD";
+        case CodecType::FLAC:
+            return "FLAC";
+        case CodecType::MP3:
+            return "MP3";
+        case CodecType::MP4ALS:
+            return "MP4ALS";
+        case CodecType::MPC7:
+            return "MPC7";
+        case CodecType::MPC8:
+            return "MPC8";
+        case CodecType::Opus:
+            return "Opus";
+        case CodecType::PCM:
+            return "PCM";
+        case CodecType::Shorten:
+            return "Shorten";
+        case CodecType::TrueAudio:
+            return "TrueAudio";
+        case CodecType::Vorbis:
+            return "Vorbis";
+        case CodecType::WavPack:
+            return "WavPack";
+        case CodecType::WMA1:
+            return "WMA1";
+        case CodecType::WMA2:
+            return "WMA2";
+        case CodecType::WMA9Pro:
+            return "WMA9Pro";
+        case CodecType::WMA9Lossless:
+            return "WMA9Lossless";
+        }
+
+        return "";
+    }
+} // namespace lms::audio

src/libs/audio/impl/ImageReader.cpp

@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2015 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "audio/IImageReader.hpp"
+
+namespace lms::audio
+{
+    core::LiteralString imageTypeToString(Image::Type type)
+    {
+        switch (type)
+        {
+        case Image::Type::Other:
+            return "Other";
+        case Image::Type::FileIcon:
+            return "FileIcon";
+        case Image::Type::OtherFileIcon:
+            return "OtherFileIcon";
+        case Image::Type::FrontCover:
+            return "FrontCover";
+        case Image::Type::BackCover:
+            return "BackCover";
+        case Image::Type::LeafletPage:
+            return "LeafletPage";
+        case Image::Type::Media:
+            return "Media";
+        case Image::Type::LeadArtist:
+            return "LeadArtist";
+        case Image::Type::Artist:
+            return "Artist";
+        case Image::Type::Conductor:
+            return "Conductor";
+        case Image::Type::Band:
+            return "Band";
+        case Image::Type::Composer:
+            return "Composer";
+        case Image::Type::Lyricist:
+            return "Lyricist";
+        case Image::Type::RecordingLocation:
+            return "RecordingLocation";
+        case Image::Type::DuringRecording:
+            return "DuringRecording";
+        case Image::Type::DuringPerformance:
+            return "DuringPerformance";
+        case Image::Type::MovieScreenCapture:
+            return "MovieScreenCapture";
+        case Image::Type::ColouredFish:
+            return "ColouredFish";
+        case Image::Type::Illustration:
+            return "Illustration";
+        case Image::Type::BandLogo:
+            return "BandLogo";
+        case Image::Type::PublisherLogo:
+            return "PublisherLogo";
+        case Image::Type::Unknown:
+            break;
+        }
+
+        return "Unknown";
+    }
+
+} // namespace lms::audio

src/libs/audio/impl/ParseAudioFileInfo.cpp

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2015 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <memory>
+
+#include "audio/IAudioFileInfo.hpp"
+
+#include "ffmpeg/AudioFileInfo.hpp"
+#include "ffmpeg/Utils.hpp"
+#include "taglib/AudioFileInfo.hpp"
+#include "taglib/Utils.hpp"
+
+namespace lms::audio
+{
+    std::unique_ptr<IAudioFileInfo> parseAudioFile(const std::filesystem::path& p, const ParserOptions& parserOptions)
+    {
+        switch (parserOptions.parser)
+        {
+        case ParserOptions::Parser::TagLib:
+            return std::make_unique<taglib::AudioFileInfo>(p, parserOptions.readStyle, parserOptions.enableExtraDebugLogs);
+        case ParserOptions::Parser::FFmpeg:
+            return std::make_unique<ffmpeg::AudioFileInfo>(p, parserOptions.enableExtraDebugLogs);
+        }
+
+        return {};
+    }
+
+    std::span<const std::filesystem::path> getSupportedExtensions(ParserOptions::Parser parser)
+    {
+        switch (parser)
+        {
+        case ParserOptions::Parser::TagLib:
+            return taglib::utils::getSupportedExtensions();
+        case ParserOptions::Parser::FFmpeg:
+            return ffmpeg::utils::getSupportedExtensions();
+        }
+
+        return {};
+    }
+
+} // namespace lms::audio

src/libs/audio/impl/TagReader.cpp

@@ -0,0 +1,277 @@
+/*
+ * Copyright (C) 2025 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "audio/ITagReader.hpp"
+
+namespace lms::audio
+{
+    core::LiteralString tagTypeToString(TagType type)
+    {
+        switch (type)
+        {
+        case TagType::AcoustID:
+            return "AcoustID";
+        case TagType::AcoustIDFingerprint:
+            return "AcoustIDFingerprint";
+        case TagType::Advisory:
+            return "Advisory";
+        case TagType::Album:
+            return "Album";
+        case TagType::AlbumArtist:
+            return "AlbumArtist";
+        case TagType::AlbumArtists:
+            return "AlbumArtists";
+        case TagType::AlbumArtistSortOrder:
+            return "AlbumArtistSortOrder";
+        case TagType::AlbumArtistsSortOrder:
+            return "AlbumArtistsSortOrder";
+        case TagType::AlbumComment:
+            return "AlbumComment";
+        case TagType::AlbumSortOrder:
+            return "AlbumSortOrder";
+        case TagType::Arranger:
+            return "Arranger";
+        case TagType::Artist:
+            return "Artist";
+        case TagType::ArtistSortOrder:
+            return "ArtistSortOrder";
+        case TagType::Artists:
+            return "Artists";
+        case TagType::ArtistsSortOrder:
+            return "ArtistsSortOrder";
+        case TagType::ASIN:
+            return "ASIN";
+        case TagType::Barcode:
+            return "Barcode";
+        case TagType::BPM:
+            return "BPM";
+        case TagType::CatalogNumber:
+            return "CatalogNumber";
+        case TagType::Comment:
+            return "Comment";
+        case TagType::Compilation:
+            return "Compilation";
+        case TagType::Composer:
+            return "Composer";
+        case TagType::ComposerSortOrder:
+            return "ComposerSortOrder";
+        case TagType::Composers:
+            return "Composers";
+        case TagType::ComposersSortOrder:
+            return "ComposersSortOrder";
+        case TagType::Conductor:
+            return "Conductor";
+        case TagType::ConductorSortOrder:
+            return "ConductorSortOrder";
+        case TagType::Conductors:
+            return "Conductors";
+        case TagType::ConductorsSortOrder:
+            return "ConductorsSortOrder";
+        case TagType::Copyright:
+            return "Copyright";
+        case TagType::CopyrightURL:
+            return "CopyrightURL";
+        case TagType::Date:
+            return "Date";
+        case TagType::Director:
+            return "Director";
+        case TagType::DiscNumber:
+            return "DiscNumber";
+        case TagType::DiscSubtitle:
+            return "DiscSubtitle";
+        case TagType::EncodedBy:
+            return "EncodedBy";
+        case TagType::EncoderSettings:
+            return "EncoderSettings";
+        case TagType::EncodingTime:
+            return "EncodingTime";
+        case TagType::Engineer:
+            return "Engineer";
+        case TagType::GaplessPlayback:
+            return "GaplessPlayback";
+        case TagType::Genre:
+            return "Genre";
+        case TagType::Grouping:
+            return "Grouping";
+        case TagType::InitialKey:
+            return "InitialKey";
+        case TagType::ISRC:
+            return "ISRC";
+        case TagType::Language:
+            return "Language";
+        case TagType::Lyricist:
+            return "Lyricist";
+        case TagType::LyricistSortOrder:
+            return "LyricistSortOrder";
+        case TagType::Lyricists:
+            return "Lyricists";
+        case TagType::LyricistsSortOrder:
+            return "LyricistsSortOrder";
+        case TagType::Media:
+            return "Media";
+        case TagType::MixDJ:
+            return "MixDJ";
+        case TagType::Mixer:
+            return "Mixer";
+        case TagType::MixerSortOrder:
+            return "MixerSortOrder";
+        case TagType::Mixers:
+            return "Mixers";
+        case TagType::MixersSortOrder:
+            return "MixersSortOrder";
+        case TagType::Movement:
+            return "Movement";
+        case TagType::MovementCount:
+            return "MovementCount";
+        case TagType::MovementNumber:
+            return "MovementNumber";
+        case TagType::Mood:
+            return "Mood";
+        case TagType::MusicBrainzArtistID:
+            return "MusicBrainzArtistID";
+        case TagType::MusicBrainzArrangerID:
+            return "MusicBrainzArrangerID";
+        case TagType::MusicBrainzComposerID:
+            return "MusicBrainzComposerID";
+        case TagType::MusicBrainzConductorID:
+            return "MusicBrainzConductorID";
+        case TagType::MusicBrainzDirectorID:
+            return "MusicBrainzDirectorID";
+        case TagType::MusicBrainzDiscID:
+            return "MusicBrainzDiscID";
+        case TagType::MusicBrainzLyricistID:
+            return "MusicBrainzLyricistID";
+        case TagType::MusicBrainzProducerID:
+            return "MusicBrainzProducerID";
+        case TagType::MusicBrainzOriginalArtistID:
+            return "MusicBrainzOriginalArtistID";
+        case TagType::MusicBrainzRecordingID:
+            return "MusicBrainzRecordingID";
+        case TagType::MusicBrainzRemixerID:
+            return "MusicBrainzRemixerID";
+        case TagType::MusicBrainzWorkID:
+            return "MusicBrainzWorkID";
+        case TagType::Remixer:
+            return "Remixer";
+        case TagType::Script:
+            return "Script";
+        case TagType::ShowName:
+            return "ShowName";
+        case TagType::ShowNameSortOrder:
+            return "ShowNameSortOrder";
+        case TagType::ShowWorkAndMovement:
+            return "ShowWorkAndMovement";
+        case TagType::Subtitle:
+            return "Subtitle";
+        case TagType::TrackNumber:
+            return "TrackNumber";
+        case TagType::TrackTitle:
+            return "TrackTitle";
+        case TagType::TrackTitleSortOrder:
+            return "TrackTitleSortOrder";
+        case TagType::WorkTitle:
+            return "WorkTitle";
+        case TagType::Writer:
+            return "Writer";
+        case TagType::License:
+            return "License";
+        case TagType::MusicBrainzOriginalReleaseID:
+            return "MusicBrainzOriginalReleaseID";
+        case TagType::MusicBrainzMixerID:
+            return "MusicBrainzMixerID";
+        case TagType::MusicBrainzReleaseArtistID:
+            return "MusicBrainzReleaseArtistID";
+        case TagType::MusicBrainzReleaseGroupID:
+            return "MusicBrainzReleaseGroupID";
+        case TagType::MusicBrainzReleaseID:
+            return "MusicBrainzReleaseID";
+        case TagType::MusicBrainzTrackID:
+            return "MusicBrainzTrackID";
+        case TagType::MusicIPFingerprint:
+            return "MusicIPFingerprint";
+        case TagType::MusicIPPUID:
+            return "MusicIPPUID";
+        case TagType::OriginalAlbum:
+            return "OriginalAlbum";
+        case TagType::OriginalArtist:
+            return "OriginalArtist";
+        case TagType::OriginalFilename:
+            return "OriginalFilename";
+        case TagType::OriginalReleaseDate:
+            return "OriginalReleaseDate";
+        case TagType::OriginalReleaseYear:
+            return "OriginalReleaseYear";
+        case TagType::Podcast:
+            return "Podcast";
+        case TagType::PodcastURL:
+            return "PodcastURL";
+        case TagType::Producer:
+            return "Producer";
+        case TagType::ProducerSortOrder:
+            return "ProducerSortOrder";
+        case TagType::Producers:
+            return "Producers";
+        case TagType::ProducersSortOrder:
+            return "ProducersSortOrder";
+        case TagType::Rating:
+            return "Rating";
+        case TagType::RecordLabel:
+            return "RecordLabel";
+        case TagType::ReleaseCountry:
+            return "ReleaseCountry";
+        case TagType::ReleaseDate:
+            return "ReleaseDate";
+        case TagType::ReleaseStatus:
+            return "ReleaseStatus";
+        case TagType::ReleaseType:
+            return "ReleaseType";
+        case TagType::RemixerSortOrder:
+            return "RemixerSortOrder";
+        case TagType::Remixers:
+            return "Remixers";
+        case TagType::RemixersSortOrder:
+            return "RemixersSortOrder";
+        case TagType::ReplayGainAlbumGain:
+            return "ReplayGainAlbumGain";
+        case TagType::ReplayGainAlbumPeak:
+            return "ReplayGainAlbumPeak";
+        case TagType::ReplayGainAlbumRange:
+            return "ReplayGainAlbumRange";
+        case TagType::ReplayGainReferenceLoudness:
+            return "ReplayGainReferenceLoudness";
+        case TagType::ReplayGainTrackGain:
+            return "ReplayGainTrackGain";
+        case TagType::ReplayGainTrackPeak:
+            return "ReplayGainTrackPeak";
+        case TagType::ReplayGainTrackRange:
+            return "ReplayGainTrackRange";
+        case TagType::TotalDiscs:
+            return "TotalDiscs";
+        case TagType::TotalTracks:
+            return "TotalTracks";
+        case TagType::Website:
+            return "Website";
+
+        case TagType::Count:
+            break;
+        }
+
+        return "";
+    }
+} // namespace lms::audio

src/libs/audio/impl/ffmpeg/AudioFile.cpp

@@ -19,6 +19,9 @@
 
 #include "AudioFile.hpp"
 
+#include <array>
+#include <unordered_map>
+
 extern "C"
 {
 #define __STDC_CONSTANT_MACROS
@@ -27,15 +30,13 @@ extern "C"
 #include <libavutil/error.h>
 }
 
-#include <array>
-#include <unordered_map>
-
 #include "core/ILogger.hpp"
 #include "core/String.hpp"
 
-#include "av/Exception.hpp"
+#include "audio/AudioTypes.hpp"
+#include "audio/IAudioFileInfo.hpp"
 
-namespace lms::av
+namespace lms::audio::ffmpeg
 {
     namespace
     {
@@ -49,11 +50,11 @@ namespace lms::av
             return "Unknown error";
         }
 
-        class AudioFileException : public Exception
+        class AudioFileException : public AudioFileParsingException
         {
         public:
             AudioFileException(int avError)
-                : Exception{ "AudioFileException: " + averror_to_string(avError) }
+                : AudioFileParsingException{ averror_to_string(avError) }
             {
             }
         };
@@ -70,76 +71,104 @@ namespace lms::av
             }
         }
 
-        DecodingCodec avcodecToDecodingCodec(AVCodecID codec)
+        std::optional<ContainerType> avdemuxerToContainerType(std::string_view name)
+        {
+            if (name == "aiff")
+                return ContainerType::AIFF;
+            if (name == "ape")
+                return ContainerType::APE;
+            if (name.starts_with("asf"))
+                return ContainerType::ASF;
+            if (name == "dsf")
+                return ContainerType::DSF;
+            if (name == "flac")
+                return ContainerType::FLAC;
+            if (name.find("mp4") != std::string_view::npos)
+                return ContainerType::MP4;
+            if (name.starts_with("mpc"))
+                return ContainerType::MPC;
+            if (name == "mp3")
+                return ContainerType::MPEG;
+            if (name == "ogg")
+                return ContainerType::Ogg;
+            if (name == "shn")
+                return ContainerType::Shorten;
+            if (name == "tta")
+                return ContainerType::TrueAudio;
+            if (name == "wav")
+                return ContainerType::WAV;
+            if (name == "wv")
+                return ContainerType::WavPack;
+
+            return std::nullopt;
+        }
+
+        std::optional<CodecType> avcodecToCodecType(AVCodecID codec)
         {
             switch (codec)
             {
             case AV_CODEC_ID_MP3:
-                return DecodingCodec::MP3;
+                return CodecType::MP3;
             case AV_CODEC_ID_AAC:
-                return DecodingCodec::AAC;
+                return CodecType::AAC;
             case AV_CODEC_ID_AC3:
-                return DecodingCodec::AC3;
+                return CodecType::AC3;
             case AV_CODEC_ID_VORBIS:
-                return DecodingCodec::VORBIS;
+                return CodecType::Vorbis;
             case AV_CODEC_ID_WMAV1:
-                return DecodingCodec::WMAV1;
+                return CodecType::WMA1;
             case AV_CODEC_ID_WMAV2:
-                return DecodingCodec::WMAV2;
+                return CodecType::WMA2;
+            case AV_CODEC_ID_WMAPRO:
+                return CodecType::WMA9Pro;
+            case AV_CODEC_ID_WMALOSSLESS:
+                return CodecType::WMA9Lossless;
             case AV_CODEC_ID_FLAC:
-                return DecodingCodec::FLAC;
+                return CodecType::FLAC;
             case AV_CODEC_ID_ALAC:
-                return DecodingCodec::ALAC;
+                return CodecType::ALAC;
             case AV_CODEC_ID_WAVPACK:
-                return DecodingCodec::WAVPACK;
+                return CodecType::WavPack;
             case AV_CODEC_ID_MUSEPACK7:
-                return DecodingCodec::MUSEPACK7;
+                return CodecType::MPC7;
             case AV_CODEC_ID_MUSEPACK8:
-                return DecodingCodec::MUSEPACK8;
+                return CodecType::MPC8;
             case AV_CODEC_ID_APE:
-                return DecodingCodec::APE;
+                return CodecType::APE;
             case AV_CODEC_ID_EAC3:
-                return DecodingCodec::EAC3;
+                return CodecType::EAC3;
             case AV_CODEC_ID_MP4ALS:
-                return DecodingCodec::MP4ALS;
+                return CodecType::MP4ALS;
             case AV_CODEC_ID_OPUS:
-                return DecodingCodec::OPUS;
+                return CodecType::Opus;
             case AV_CODEC_ID_SHORTEN:
-                return DecodingCodec::SHORTEN;
+                return CodecType::Shorten;
             case AV_CODEC_ID_DSD_LSBF:
-                return DecodingCodec::DSD_LSBF;
             case AV_CODEC_ID_DSD_LSBF_PLANAR:
-                return DecodingCodec::DSD_LSBF_PLANAR;
             case AV_CODEC_ID_DSD_MSBF:
-                return DecodingCodec::DSD_MSBF;
             case AV_CODEC_ID_DSD_MSBF_PLANAR:
-                return DecodingCodec::DSD_MSBF_PLANAR;
+                return CodecType::DSD;
 
             default:
-                return DecodingCodec::UNKNOWN;
+                return std::nullopt;
             }
         }
     } // namespace
 
-    std::unique_ptr<IAudioFile> parseAudioFile(const std::filesystem::path& p)
-    {
-        return std::make_unique<AudioFile>(p);
-    }
-
     AudioFile::AudioFile(const std::filesystem::path& p)
         : _p{ p }
     {
         int error{ avformat_open_input(&_context, _p.c_str(), nullptr, nullptr) };
         if (error < 0)
         {
-            LMS_LOG(AV, ERROR, "Cannot open " << _p << ": " << averror_to_string(error));
+            LMS_LOG(AUDIO, ERROR, "Cannot open " << _p << ": " << averror_to_string(error));
             throw AudioFileException{ error };
         }
 
         error = avformat_find_stream_info(_context, nullptr);
         if (error < 0)
         {
-            LMS_LOG(AV, ERROR, "Cannot find stream information on " << _p << ": " << averror_to_string(error));
+            LMS_LOG(AUDIO, ERROR, "Cannot find stream information on " << _p << ": " << averror_to_string(error));
             avformat_close_input(&_context);
             throw AudioFileException{ error };
         }
@@ -158,9 +187,12 @@ namespace lms::av
     ContainerInfo AudioFile::getContainerInfo() const
     {
         ContainerInfo info;
+
+        info.container = avdemuxerToContainerType(_context->iformat->name);
+        info.containerName = _context->iformat->name;
+
         info.bitrate = _context->bit_rate;
         info.duration = std::chrono::milliseconds{ _context->duration == AV_NOPTS_VALUE ? 0 : _context->duration / AV_TIME_BASE * 1'000 };
-        info.name = _context->iformat->name;
 
         return info;
     }
@@ -258,7 +290,7 @@ namespace lms::av
 
             if (avstream->codecpar == nullptr)
             {
-                LMS_LOG(AV, ERROR, "Skipping stream " << i << " since no codecpar is set");
+                LMS_LOG(AUDIO, ERROR, "Skipping stream " << i << " since no codecpar is set");
                 continue;
             }
 
@@ -275,7 +307,7 @@ namespace lms::av
             else
             {
                 picture.mimeType = "application/octet-stream";
-                LMS_LOG(AV, ERROR, "CODEC ID " << avstream->codecpar->codec_id << " not handled in mime type conversion");
+                LMS_LOG(AUDIO, ERROR, "CODEC ID " << avstream->codecpar->codec_id << " not handled in mime type conversion");
             }
 
             const AVPacket& pkt{ avstream->attached_pic };
@@ -297,7 +329,7 @@ namespace lms::av
 
         if (!avstream->codecpar)
         {
-            LMS_LOG(AV, ERROR, "Skipping stream " << streamIndex << " since no codecpar is set");
+            LMS_LOG(AUDIO, ERROR, "Skipping stream " << streamIndex << " since no codecpar is set");
             return res;
         }
 
@@ -305,19 +337,29 @@ namespace lms::av
             return res;
 
         res.emplace();
+
         res->index = streamIndex;
-        res->bitrate = static_cast<std::size_t>(avstream->codecpar->bit_rate);
-        res->bitsPerSample = static_cast<std::size_t>(avstream->codecpar->bits_per_coded_sample);
-#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(59, 24, 100)
-        res->channelCount = static_cast<std::size_t>(avstream->codecpar->channels);
-#else
-        res->channelCount = static_cast<std::size_t>(avstream->codecpar->ch_layout.nb_channels);
-#endif
-        res->codec = avcodecToDecodingCodec(avstream->codecpar->codec_id);
+        res->codec = avcodecToCodecType(avstream->codecpar->codec_id);
         res->codecName = ::avcodec_get_name(avstream->codecpar->codec_id);
+
+        if (avstream->codecpar->bit_rate)
+            res->bitrate = static_cast<std::size_t>(avstream->codecpar->bit_rate);
+        if (avstream->codecpar->bits_per_coded_sample)
+            res->bitsPerSample = static_cast<std::size_t>(avstream->codecpar->bits_per_coded_sample);
+        else if (avstream->codecpar->bits_per_raw_sample)
+            res->bitsPerSample = static_cast<std::size_t>(avstream->codecpar->bits_per_raw_sample);
+
+#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(59, 24, 100)
+        if (avstream->codecpar->channels)
+            res->channelCount = static_cast<std::size_t>(avstream->codecpar->channels);
+#else
+        if (avstream->codecpar->ch_layout.nb_channels)
+            res->channelCount = static_cast<std::size_t>(avstream->codecpar->ch_layout.nb_channels);
+#endif
         assert(!res->codecName.empty()); // doc says it is never NULL
-        res->sampleRate = static_cast<std::size_t>(avstream->codecpar->sample_rate);
+        if (avstream->codecpar->sample_rate)
+            res->sampleRate = static_cast<std::size_t>(avstream->codecpar->sample_rate);
 
         return res;
     }
-} // namespace lms::av
+} // namespace lms::audio::ffmpeg

src/libs/audio/impl/ffmpeg/AudioFile.hpp

@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2020 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <chrono>
+#include <filesystem>
+#include <functional>
+#include <optional>
+#include <span>
+#include <string>
+#include <vector>
+
+#include "audio/AudioTypes.hpp"
+
+extern "C"
+{
+    struct AVFormatContext;
+}
+
+namespace lms::audio::ffmpeg
+{
+    struct Picture
+    {
+        std::string mimeType;
+        std::span<const std::byte> data; // valid as long as IAudioFile exists
+    };
+
+    struct ContainerInfo
+    {
+        std::optional<ContainerType> container;
+        std::string containerName;
+
+        std::size_t bitrate{};
+        std::chrono::milliseconds duration{};
+    };
+
+    struct StreamInfo
+    {
+        size_t index{};
+        std::optional<CodecType> codec;
+        std::string codecName;
+
+        std::optional<size_t> bitrate;
+        std::optional<std::size_t> bitsPerSample;
+        std::optional<std::size_t> channelCount;
+        std::optional<std::size_t> sampleRate;
+    };
+
+    class AudioFile
+    {
+    public:
+        AudioFile(const std::filesystem::path& p);
+        ~AudioFile();
+        AudioFile(const AudioFile&) = delete;
+        AudioFile& operator=(const AudioFile&) = delete;
+
+        using MetadataMap = std::unordered_map<std::string, std::string>;
+
+        const std::filesystem::path& getPath() const;
+        ContainerInfo getContainerInfo() const;
+        MetadataMap getMetaData() const;
+        std::vector<StreamInfo> getStreamInfo() const;
+        std::optional<StreamInfo> getBestStreamInfo() const;
+        std::optional<std::size_t> getBestStreamIndex() const;
+        bool hasAttachedPictures() const;
+        void visitAttachedPictures(std::function<void(const Picture&, const MetadataMap&)> func) const;
+
+    private:
+        std::optional<StreamInfo> getStreamInfo(std::size_t streamIndex) const;
+
+        const std::filesystem::path _p;
+        AVFormatContext* _context{};
+    };
+} // namespace lms::audio::ffmpeg

src/libs/audio/impl/ffmpeg/AudioFileInfo.cpp

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2015 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "AudioFileInfo.hpp"
+
+#include "audio/AudioTypes.hpp"
+#include "audio/IAudioFileInfo.hpp"
+
+#include "AudioFile.hpp"
+#include "ImageReader.hpp"
+#include "TagReader.hpp"
+
+namespace lms::audio::ffmpeg
+{
+    namespace
+    {
+        AudioProperties computeAudioProperties(const AudioFile& audioFile)
+        {
+            AudioProperties audioProperties;
+
+            const auto containerInfo{ audioFile.getContainerInfo() };
+            const auto bestStreamInfo{ audioFile.getBestStreamInfo() };
+            if (!bestStreamInfo)
+                throw AudioFileParsingException{ audioFile.getPath(), "Cannot find best audio stream" };
+
+            if (!containerInfo.container)
+                throw AudioFileParsingException{ audioFile.getPath(), "Unhandled container type '" + containerInfo.containerName + "'" };
+
+            audioProperties.container = *containerInfo.container;
+            audioProperties.duration = containerInfo.duration;
+            audioProperties.codec = bestStreamInfo->codec;
+            audioProperties.bitrate = bestStreamInfo->bitrate;
+            audioProperties.bitsPerSample = bestStreamInfo->bitsPerSample;
+            audioProperties.channelCount = bestStreamInfo->channelCount;
+            audioProperties.sampleRate = bestStreamInfo->sampleRate;
+
+            return audioProperties;
+        }
+    } // namespace
+
+    AudioFileInfo::AudioFileInfo(const std::filesystem::path& filePath, bool enableExtraDebugLogs)
+        : _audioFile{ std::make_unique<AudioFile>(filePath) }
+        , _audioProperties{ std::make_unique<AudioProperties>(computeAudioProperties(*_audioFile)) }
+        , _tagReader{ std::make_unique<TagReader>(*_audioFile, enableExtraDebugLogs) }
+        , _imageReader{ std::make_unique<ImageReader>(*_audioFile) }
+    {
+    }
+
+    AudioFileInfo::~AudioFileInfo() = default;
+
+    const AudioProperties& AudioFileInfo::getAudioProperties() const
+    {
+        return *_audioProperties;
+    }
+
+    const IImageReader& AudioFileInfo::getImageReader() const
+    {
+        return *_imageReader;
+    }
+
+    const ITagReader& AudioFileInfo::getTagReader() const
+    {
+        return *_tagReader;
+    }
+
+} // namespace lms::audio::ffmpeg

src/libs/audio/impl/ffmpeg/AudioFileInfo.hpp

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2020 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <filesystem>
+
+#include "audio/AudioTypes.hpp"
+#include "audio/IAudioFileInfo.hpp"
+
+namespace lms::audio::ffmpeg
+{
+    class AudioFile;
+    class TagReader;
+    class ImageReader;
+
+    class AudioFileInfo final : public IAudioFileInfo
+    {
+    public:
+        AudioFileInfo(const std::filesystem::path& filePath, bool enableExtraDebugLogs);
+        ~AudioFileInfo();
+        AudioFileInfo(const AudioFileInfo&) = delete;
+        AudioFileInfo& operator=(const AudioFileInfo&) = delete;
+
+    private:
+        const AudioProperties& getAudioProperties() const override;
+        const IImageReader& getImageReader() const override;
+        const ITagReader& getTagReader() const override;
+
+        std::unique_ptr<AudioFile> _audioFile;
+        std::unique_ptr<AudioProperties> _audioProperties;
+        std::unique_ptr<TagReader> _tagReader;
+        std::unique_ptr<ImageReader> _imageReader;
+    };
+} // namespace lms::audio::ffmpeg

src/libs/audio/impl/ffmpeg/ImageReader.cpp

@@ -17,35 +17,30 @@
  * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "AvFormatImageReader.hpp"
+#include "ImageReader.hpp"
 
-#include "av/Exception.hpp"
-#include "av/IAudioFile.hpp"
-#include "metadata/Exception.hpp"
+#include <algorithm>
 
-namespace lms::metadata::avformat
+#include "core/String.hpp"
+
+#include "AudioFile.hpp"
+
+namespace lms::audio::ffmpeg
 {
-    AvFormatImageReader::AvFormatImageReader(const std::filesystem::path& p)
+    ImageReader::ImageReader(const AudioFile& audioFile)
+        : _audioFile{ audioFile }
     {
-        try
-        {
-            _audioFile = av::parseAudioFile(p);
-        }
-        catch (av::Exception& e)
-        {
-            throw AudioFileParsingException{ e.what() };
-        }
     }
 
-    AvFormatImageReader::~AvFormatImageReader() = default;
+    ImageReader::~ImageReader() = default;
 
-    void AvFormatImageReader::visitImages(ImageVisitor visitor) const
+    void ImageReader::visitImages(const ImageVisitor& visitor) const
     {
-        auto metaDataHasKeyword{ [](const av::IAudioFile::MetadataMap& metadata, std::string_view keyword) {
+        auto metaDataHasKeyword{ [](const AudioFile::MetadataMap& metadata, std::string_view keyword) {
             return std::any_of(std::cbegin(metadata), std::cend(metadata), [&](const auto& keyValue) { return core::stringUtils::stringCaseInsensitiveContains(keyValue.second, keyword); });
         } };
 
-        _audioFile->visitAttachedPictures([&](const av::Picture& picture, const av::IAudioFile::MetadataMap& metaData) {
+        _audioFile.visitAttachedPictures([&](const Picture& picture, const AudioFile::MetadataMap& metaData) {
             Image image;
             image.data = picture.data;
             image.mimeType = picture.mimeType;
@@ -58,4 +53,4 @@ namespace lms::metadata::avformat
         });
     }
 
-} // namespace lms::metadata::avformat
+} // namespace lms::audio::ffmpeg

src/libs/audio/impl/ffmpeg/ImageReader.hpp

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2025 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "audio/IImageReader.hpp"
+
+namespace lms::audio::ffmpeg
+{
+    class AudioFile;
+
+    class ImageReader : public IImageReader
+    {
+    public:
+        ImageReader(const AudioFile& audioFile);
+        ~ImageReader() override;
+
+        ImageReader(const ImageReader&) = delete;
+        ImageReader& operator=(const ImageReader&) = delete;
+
+    private:
+        void visitImages(const ImageVisitor& visitor) const override;
+
+        const AudioFile& _audioFile;
+    };
+} // namespace lms::audio::ffmpeg

src/libs/audio/impl/ffmpeg/TagReader.cpp

@@ -17,15 +17,12 @@
  * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "AvFormatTagReader.hpp"
+#include "TagReader.hpp"
 
-#include "av/Exception.hpp"
-#include "av/IAudioFile.hpp"
 #include "core/ILogger.hpp"
 #include "core/String.hpp"
-#include "metadata/Exception.hpp"
 
-namespace lms::metadata::avformat
+namespace lms::audio::ffmpeg
 {
     namespace
     {
@@ -146,41 +143,20 @@ namespace lms::metadata::avformat
         };
     } // namespace
 
-    AvFormatTagReader::AvFormatTagReader(const std::filesystem::path& p, bool debug)
+    TagReader::TagReader(const AudioFile& audioFile, bool enableExtraDebugLogs)
+        : _audioFile{ audioFile }
+        , _metaDataMap{ audioFile.getMetaData() }
     {
-        try
+        if (enableExtraDebugLogs && core::Service<core::logging::ILogger>::get()->isSeverityActive(core::logging::Severity::DEBUG))
         {
-            const auto audioFile{ av::parseAudioFile(p) };
-
-            _audioProperties.duration = audioFile->getContainerInfo().duration;
-
-            const auto bestAudioStream{ audioFile->getBestStreamInfo() };
-            if (bestAudioStream)
-            {
-                _audioProperties.bitrate = bestAudioStream->bitrate;
-                _audioProperties.bitsPerSample = bestAudioStream->bitsPerSample;
-                _audioProperties.channelCount = bestAudioStream->channelCount;
-                _audioProperties.sampleRate = bestAudioStream->sampleRate;
-            }
-
-            _containerInfo = audioFile->getContainerInfo();
-            _metaDataMap = audioFile->getMetaData();
-
-            if (debug && core::Service<core::logging::ILogger>::get()->isSeverityActive(core::logging::Severity::DEBUG))
-            {
-                for (const auto& [key, value] : _metaDataMap)
-                    LMS_LOG(METADATA, DEBUG, "Key = '" << key << "', value = '" << value << "'");
-            }
-        }
-        catch (av::Exception& e)
-        {
-            throw AudioFileParsingException{ e.what() };
+            for (const auto& [key, value] : _metaDataMap)
+                LMS_LOG(METADATA, DEBUG, "Key = '" << key << "', value = '" << value << "'");
         }
     }
 
-    AvFormatTagReader::~AvFormatTagReader() = default;
+    TagReader::~TagReader() = default;
 
-    void AvFormatTagReader::visitTagValues(TagType tag, TagValueVisitor visitor) const
+    void TagReader::visitTagValues(TagType tag, TagValueVisitor visitor) const
     {
         auto itTagNames{ avFormatTagMapping.find(tag) };
         if (itTagNames == std::cend(avFormatTagMapping))
@@ -200,7 +176,7 @@ namespace lms::metadata::avformat
         }
     }
 
-    void AvFormatTagReader::visitTagValues(std::string_view key, TagValueVisitor visitor) const
+    void TagReader::visitTagValues(std::string_view key, TagValueVisitor visitor) const
     {
         auto itValues{ _metaDataMap.find(std::string{ key }) };
         if (itValues == std::cend(_metaDataMap))
@@ -209,14 +185,14 @@ namespace lms::metadata::avformat
         visitor(itValues->second);
     }
 
-    void AvFormatTagReader::visitPerformerTags(PerformerVisitor visitor) const
+    void TagReader::visitPerformerTags(PerformerVisitor visitor) const
     {
         visitTagValues("PERFORMER", [&](std::string_view value) {
             visitor("", value);
         });
     }
 
-    void AvFormatTagReader::visitLyricsTags(LyricsVisitor visitor) const
+    void TagReader::visitLyricsTags(LyricsVisitor visitor) const
     {
         // MPEG files: need to visit LYRICS-language entries
         for (const auto& [tag, value] : _metaDataMap)
@@ -234,4 +210,4 @@ namespace lms::metadata::avformat
             visitor("", value);
         });
     }
-} // namespace lms::metadata::avformat
+} // namespace lms::audio::ffmpeg

src/libs/audio/impl/ffmpeg/TagReader.hpp

@@ -19,31 +19,27 @@
 
 #pragma once
 
-#include <filesystem>
+#include "audio/ITagReader.hpp"
 
-#include "av/IAudioFile.hpp"
+#include "AudioFile.hpp"
 
-#include "ITagReader.hpp"
-
-namespace lms::metadata::avformat
+namespace lms::audio::ffmpeg
 {
-    class AvFormatTagReader : public ITagReader
+    class TagReader : public ITagReader
     {
     public:
-        AvFormatTagReader(const std::filesystem::path& path, bool debug);
-        ~AvFormatTagReader() override;
-        AvFormatTagReader(const AvFormatTagReader&) = delete;
-        AvFormatTagReader& operator=(const AvFormatTagReader&) = delete;
+        TagReader(const AudioFile& audioFile, bool enableExtraDebugLogs);
+        ~TagReader() override;
+        TagReader(const TagReader&) = delete;
+        TagReader& operator=(const TagReader&) = delete;
 
     private:
         void visitTagValues(TagType tag, TagValueVisitor visitor) const override;
         void visitTagValues(std::string_view tag, TagValueVisitor visitor) const override;
         void visitPerformerTags(PerformerVisitor visitor) const override;
         void visitLyricsTags(LyricsVisitor visitor) const override;
-        const AudioProperties& getAudioProperties() const override { return _audioProperties; }
 
-        AudioProperties _audioProperties;
-        av::IAudioFile::MetadataMap _metaDataMap;
-        av::ContainerInfo _containerInfo;
+        const AudioFile& _audioFile;
+        AudioFile::MetadataMap _metaDataMap;
     };
-} // namespace lms::metadata::avformat
+} // namespace lms::audio::ffmpeg

src/libs/audio/impl/ffmpeg/Transcoder.cpp

@@ -27,17 +27,21 @@
 #include "core/ILogger.hpp"
 #include "core/Service.hpp"
 
-#include "av/Exception.hpp"
+#include "audio/Exception.hpp"
+#include "audio/TranscodeTypes.hpp"
 
-namespace lms::av
+namespace lms::audio
+{
+    std::unique_ptr<ITranscoder> createTranscoder(const TranscodeParameters& parameters)
+    {
+        return std::make_unique<ffmpeg::Transcoder>(parameters);
+    }
+} // namespace lms::audio
+
+namespace lms::audio::ffmpeg
 {
 #define LOG(severity, message) LMS_LOG(TRANSCODING, severity, "[" << _debugId << "] - " << message)
 
-    std::unique_ptr<ITranscoder> createTranscoder(const InputParameters& inputParameters, const OutputParameters& outputParameters)
-    {
-        return std::make_unique<Transcoder>(inputParameters, outputParameters);
-    }
-
     static std::atomic<size_t> globalId{};
     static std::filesystem::path ffmpegPath;
 
@@ -48,10 +52,10 @@ namespace lms::av
             throw Exception{ "File '" + ffmpegPath.string() + "' does not exist!" };
     }
 
-    Transcoder::Transcoder(const InputParameters& inputParams, const OutputParameters& outputParams)
+    Transcoder::Transcoder(const TranscodeParameters& parameters)
         : _debugId{ globalId++ }
-        , _inputParams{ inputParams }
-        , _outputParams{ outputParams }
+        , _inputParams{ parameters.inputParameters }
+        , _outputParams{ parameters.outputParameters }
     {
         start();
     }
@@ -65,18 +69,18 @@ namespace lms::av
 
         try
         {
-            if (!std::filesystem::exists(_inputParams.file))
-                throw Exception{ "File " + _inputParams.file.string() + " does not exist!" };
-            if (!std::filesystem::is_regular_file(_inputParams.file))
-                throw Exception{ "File " + _inputParams.file.string() + " is not regular!" };
+            if (!std::filesystem::exists(_inputParams.filePath))
+                throw Exception{ "File " + _inputParams.filePath.string() + " does not exist!" };
+            if (!std::filesystem::is_regular_file(_inputParams.filePath))
+                throw Exception{ "File " + _inputParams.filePath.string() + " is not regular!" };
         }
         catch (const std::filesystem::filesystem_error& e)
         {
             // TODO store/raise e.code()
-            throw Exception{ "File error '" + _inputParams.file.string() + "': " + e.what() };
+            throw Exception{ "File error '" + _inputParams.filePath.string() + "': " + e.what() };
         }
 
-        LOG(INFO, "Transcoding file " << _inputParams.file);
+        LOG(INFO, "Transcoding file " << _inputParams.filePath);
 
         std::vector<std::string> args;
 
@@ -101,14 +105,7 @@ namespace lms::av
 
         // Input file
         args.emplace_back("-i");
-        args.emplace_back(_inputParams.file.string());
-
-        // Stream mapping, if set
-        if (_inputParams.streamIndex)
-        {
-            args.emplace_back("-map");
-            args.emplace_back("0:" + std::to_string(*_inputParams.streamIndex));
-        }
+        args.emplace_back(_inputParams.filePath.string());
 
         if (_outputParams.stripMetadata)
         {
@@ -121,47 +118,53 @@ namespace lms::av
         args.emplace_back("-vn");
 
         // Output bitrates
-        args.emplace_back("-b:a");
-        args.emplace_back(std::to_string(_outputParams.bitrate));
+        if (_outputParams.bitrate)
+        {
+            args.emplace_back("-b:a");
+            args.emplace_back(std::to_string(*_outputParams.bitrate));
+        }
 
         // Codecs and formats
-        switch (_outputParams.format)
+        if (_outputParams.format)
         {
-        case OutputFormat::MP3:
-            args.emplace_back("-f");
-            args.emplace_back("mp3");
-            break;
+            switch (*_outputParams.format)
+            {
+            case OutputFormat::MP3:
+                args.emplace_back("-f");
+                args.emplace_back("mp3");
+                break;
 
-        case OutputFormat::OGG_OPUS:
-            args.emplace_back("-acodec");
-            args.emplace_back("libopus");
-            args.emplace_back("-f");
-            args.emplace_back("ogg");
-            break;
+            case OutputFormat::OGG_OPUS:
+                args.emplace_back("-acodec");
+                args.emplace_back("libopus");
+                args.emplace_back("-f");
+                args.emplace_back("ogg");
+                break;
 
-        case OutputFormat::MATROSKA_OPUS:
-            args.emplace_back("-acodec");
-            args.emplace_back("libopus");
-            args.emplace_back("-f");
-            args.emplace_back("matroska");
-            break;
+            case OutputFormat::MATROSKA_OPUS:
+                args.emplace_back("-acodec");
+                args.emplace_back("libopus");
+                args.emplace_back("-f");
+                args.emplace_back("matroska");
+                break;
 
-        case OutputFormat::OGG_VORBIS:
-            args.emplace_back("-acodec");
-            args.emplace_back("libvorbis");
-            args.emplace_back("-f");
-            args.emplace_back("ogg");
-            break;
+            case OutputFormat::OGG_VORBIS:
+                args.emplace_back("-acodec");
+                args.emplace_back("libvorbis");
+                args.emplace_back("-f");
+                args.emplace_back("ogg");
+                break;
 
-        case OutputFormat::WEBM_VORBIS:
-            args.emplace_back("-acodec");
-            args.emplace_back("libvorbis");
-            args.emplace_back("-f");
-            args.emplace_back("webm");
-            break;
+            case OutputFormat::WEBM_VORBIS:
+                args.emplace_back("-acodec");
+                args.emplace_back("libvorbis");
+                args.emplace_back("-f");
+                args.emplace_back("webm");
+                break;
 
-        default:
-            throw Exception{ "Unhandled format (" + std::to_string(static_cast<int>(_outputParams.format)) + ")" };
+            default:
+                throw Exception{ "Unhandled format (" + std::to_string(static_cast<int>(*_outputParams.format)) + ")" };
+            }
         }
 
         args.emplace_back("pipe:1");
@@ -199,18 +202,22 @@ namespace lms::av
 
     std::string_view Transcoder::getOutputMimeType() const
     {
-        switch (_outputParams.format)
+        // TODO: use input mime type
+        if (_outputParams.format)
         {
-        case OutputFormat::MP3:
-            return "audio/mpeg";
-        case OutputFormat::OGG_OPUS:
-            return "audio/opus";
-        case OutputFormat::MATROSKA_OPUS:
-            return "audio/x-matroska";
-        case OutputFormat::OGG_VORBIS:
-            return "audio/ogg";
-        case OutputFormat::WEBM_VORBIS:
-            return "audio/webm";
+            switch (*_outputParams.format)
+            {
+            case OutputFormat::MP3:
+                return "audio/mpeg";
+            case OutputFormat::OGG_OPUS:
+                return "audio/opus";
+            case OutputFormat::MATROSKA_OPUS:
+                return "audio/x-matroska";
+            case OutputFormat::OGG_VORBIS:
+                return "audio/ogg";
+            case OutputFormat::WEBM_VORBIS:
+                return "audio/webm";
+            }
         }
 
         return "application/octet-stream"; // default, should not happen
@@ -222,5 +229,4 @@ namespace lms::av
 
         return _childProcess->finished();
     }
-
-} // namespace lms::av
+} // namespace lms::audio::ffmpeg

src/libs/audio/impl/ffmpeg/Transcoder.hpp

@@ -19,19 +19,19 @@
 
 #pragma once
 
-#include "av/ITranscoder.hpp"
+#include "audio/ITranscoder.hpp"
 
 namespace lms::core
 {
     class IChildProcess;
 }
 
-namespace lms::av
+namespace lms::audio::ffmpeg
 {
     class Transcoder : public ITranscoder
     {
     public:
-        Transcoder(const InputParameters& inputParameters, const OutputParameters& outputParameters);
+        Transcoder(const TranscodeParameters& parameters);
         ~Transcoder() override;
         Transcoder(const Transcoder&) = delete;
         Transcoder& operator=(const Transcoder&) = delete;
@@ -41,15 +41,15 @@ namespace lms::av
         std::size_t readSome(std::byte* buffer, std::size_t bufferSize) override;
 
         std::string_view getOutputMimeType() const override;
-        const OutputParameters& getOutputParameters() const override { return _outputParams; }
+        const TranscodeOutputParameters& getOutputParameters() const override { return _outputParams; }
 
         bool finished() const override;
         static void init();
         void start();
 
         const std::size_t _debugId{};
-        const InputParameters _inputParams;
-        const OutputParameters _outputParams;
+        const TranscodeInputParameters _inputParams;
+        const TranscodeOutputParameters _outputParams;
         std::unique_ptr<core::IChildProcess> _childProcess;
     };
-} // namespace lms::av
+} // namespace lms::audio::ffmpeg

src/libs/audio/impl/ffmpeg/Utils.cpp

@@ -19,11 +19,11 @@
 
 #include "Utils.hpp"
 
-namespace lms::metadata::avformat::utils
+namespace lms::audio::ffmpeg::utils
 {
     std::span<const std::filesystem::path> getSupportedExtensions()
     {
-        // TODO: use av capability to retrieve supported formats
+        // TODO: list demuxers to retrieve supported formats
         static const std::array<std::filesystem::path, 18> fileExtensions{
             ".aac",
             ".alac",
@@ -46,4 +46,4 @@ namespace lms::metadata::avformat::utils
         };
         return fileExtensions;
     }
-} // namespace lms::metadata::avformat::utils
+} // namespace lms::audio::ffmpeg::utils

src/libs/audio/impl/ffmpeg/Utils.hpp

@@ -22,7 +22,7 @@
 #include <filesystem>
 #include <span>
 
-namespace lms::metadata::avformat::utils
+namespace lms::audio::ffmpeg::utils
 {
     std::span<const std::filesystem::path> getSupportedExtensions();
-} // namespace lms::metadata::avformat::utils
+} // namespace lms::audio::ffmpeg::utils

src/libs/audio/impl/taglib/AudioFileInfo.cpp

@@ -0,0 +1,227 @@
+/*
+ * Copyright (C) 2015 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "AudioFileInfo.hpp"
+
+#include <cassert>
+
+#include "TagLibDefs.hpp"
+
+#include <taglib/aifffile.h>
+#include <taglib/apefile.h>
+#include <taglib/asffile.h>
+#include <taglib/flacfile.h>
+#include <taglib/mp4file.h>
+#include <taglib/mpcfile.h>
+#include <taglib/mpegfile.h>
+#include <taglib/opusfile.h>
+#include <taglib/trueaudiofile.h>
+#include <taglib/vorbisfile.h>
+#include <taglib/wavfile.h>
+#include <taglib/wavpackfile.h>
+
+#if LMS_TAGLIB_HAS_DSF
+    #include <taglib/dsffile.h>
+#endif
+#if LMS_TAGLIB_HAS_SHORTEN
+    #include <taglib/shortenfile.h>
+#endif
+
+#include "audio/IAudioFileInfo.hpp"
+
+#include "Utils.hpp"
+
+namespace lms::audio::taglib
+{
+    namespace
+    {
+        AudioProperties computeAudioProperties(const ::TagLib::File& file)
+        {
+            assert(file.audioProperties());
+            const ::TagLib::AudioProperties& properties{ *file.audioProperties() };
+
+            AudioProperties audioProperties;
+
+            // Common properties
+            audioProperties.bitrate = static_cast<std::size_t>(properties.bitrate() * 1000);
+            audioProperties.channelCount = static_cast<std::size_t>(properties.channels());
+            audioProperties.duration = std::chrono::milliseconds{ properties.lengthInMilliseconds() };
+            audioProperties.sampleRate = static_cast<std::size_t>(properties.sampleRate());
+
+            // Guess container from the file type
+            if (const auto* apeFile{ dynamic_cast<const ::TagLib::APE::File*>(&file) })
+            {
+                audioProperties.container = ContainerType::APE;
+                audioProperties.codec = CodecType::APE; // TODO version?
+                audioProperties.bitsPerSample = apeFile->audioProperties()->bitsPerSample();
+            }
+            else if (const auto* asfFile{ dynamic_cast<const ::TagLib::ASF::File*>(&file) })
+            {
+                audioProperties.container = ContainerType::ASF;
+
+                switch (asfFile->audioProperties()->codec())
+                {
+                case ::TagLib::ASF::Properties::Codec::WMA1:
+                    audioProperties.codec = CodecType::WMA1;
+                    break;
+                case ::TagLib::ASF::Properties::Codec::WMA2:
+                    audioProperties.codec = CodecType::WMA2;
+                    break;
+                case ::TagLib::ASF::Properties::Codec::WMA9Lossless:
+                    audioProperties.codec = CodecType::WMA9Lossless;
+                    break;
+                case ::TagLib::ASF::Properties::Codec::WMA9Pro:
+                    audioProperties.codec = CodecType::WMA9Pro;
+                    break;
+                case ::TagLib::ASF::Properties::Codec::Unknown:
+                    audioProperties.codec = std::nullopt;
+                    break;
+                }
+
+                audioProperties.bitsPerSample = asfFile->audioProperties()->bitsPerSample();
+            }
+#if LMS_TAGLIB_HAS_DSF
+            else if (const auto* dsfFile{ dynamic_cast<const ::TagLib::DSF::File*>(&file) })
+            {
+                audioProperties.container = ContainerType::DSF;
+                audioProperties.codec = CodecType::DSD;
+                audioProperties.bitsPerSample = dsfFile->audioProperties()->bitsPerSample();
+            }
+#endif // LMS_TAGLIB_HAS_DSF
+            else if (const auto* flacFile{ dynamic_cast<const ::TagLib::FLAC::File*>(&file) })
+            {
+                audioProperties.container = ContainerType::FLAC;
+                audioProperties.codec = CodecType::FLAC;
+                audioProperties.bitsPerSample = flacFile->audioProperties()->bitsPerSample();
+            }
+            else if (const auto* mp4File{ dynamic_cast<const ::TagLib::MP4::File*>(&file) })
+            {
+                audioProperties.container = ContainerType::MP4;
+                switch (mp4File->audioProperties()->codec())
+                {
+                case ::TagLib::MP4::Properties::Codec::AAC:
+                    audioProperties.codec = CodecType::AAC;
+                    break;
+                case ::TagLib::MP4::Properties::Codec::ALAC:
+                    audioProperties.codec = CodecType::ALAC;
+                    break;
+                case ::TagLib::MP4::Properties::Codec::Unknown:
+                    audioProperties.codec = std::nullopt;
+                    break;
+                }
+
+                audioProperties.bitsPerSample = mp4File->audioProperties()->bitsPerSample();
+            }
+            else if (const auto* mpcFile{ dynamic_cast<const ::TagLib::MPC::File*>(&file) })
+            {
+                audioProperties.container = ContainerType::MPC;
+
+                switch (mpcFile->audioProperties()->mpcVersion())
+                {
+                case 7:
+                    audioProperties.codec = CodecType::MPC7;
+                    break;
+                case 8:
+                    audioProperties.codec = CodecType::MPC8;
+                    break;
+                }
+            }
+            else if (const auto* mpegFile{ dynamic_cast<const ::TagLib::MPEG::File*>(&file) })
+            {
+                const auto& properties{ *mpegFile->audioProperties() };
+
+                audioProperties.container = ContainerType::MPEG;
+                if ((properties.version() == TagLib::MPEG::Header::Version::Version1 || properties.version() == TagLib::MPEG::Header::Version::Version2 || properties.version() == TagLib::MPEG::Header::Version::Version2_5)
+                    && mpegFile->audioProperties()->layer() == 3)
+                    audioProperties.codec = CodecType::MP3;     // could be MPEG-1 layer 3 or MPEG-2(.5) layer 3
+                else if (mpegFile->audioProperties()->isADTS()) // likely AAC
+                    audioProperties.codec = CodecType::AAC;
+            }
+            else if (dynamic_cast<const ::TagLib::Ogg::Opus::File*>(&file))
+            {
+                audioProperties.container = ContainerType::Ogg;
+                audioProperties.codec = CodecType::Opus;
+            }
+            else if (dynamic_cast<const ::TagLib::Ogg::Vorbis::File*>(&file))
+            {
+                audioProperties.container = ContainerType::Ogg;
+                audioProperties.codec = CodecType::Vorbis;
+            }
+            else if (const auto* aiffFile{ dynamic_cast<const ::TagLib::RIFF::AIFF::File*>(&file) })
+            {
+                audioProperties.container = ContainerType::AIFF;
+                audioProperties.codec = CodecType::PCM;
+                audioProperties.bitsPerSample = aiffFile->audioProperties()->bitsPerSample();
+            }
+            else if (const auto* wavFile{ dynamic_cast<const ::TagLib::RIFF::WAV::File*>(&file) })
+            {
+                audioProperties.container = ContainerType::WAV;
+                audioProperties.codec = CodecType::PCM;
+                audioProperties.bitsPerSample = wavFile->audioProperties()->bitsPerSample();
+            }
+#if LMS_TAGLIB_HAS_SHORTEN
+            else if (const auto* shortenFile{ dynamic_cast<const ::TagLib::Shorten::File*>(&file) })
+            {
+                audioProperties.container = ContainerType::Shorten;
+                audioProperties.codec = CodecType::Shorten;
+                audioProperties.bitsPerSample = shortenFile->audioProperties()->bitsPerSample();
+            }
+#endif // LMS_TAGLIB_HAS_SHORTEN
+            else if (const auto* trueAudioFile{ dynamic_cast<const ::TagLib::TrueAudio::File*>(&file) })
+            {
+                audioProperties.container = ContainerType::TrueAudio;
+                audioProperties.codec = CodecType::TrueAudio;
+                audioProperties.bitsPerSample = trueAudioFile->audioProperties()->bitsPerSample();
+            }
+            else if (const auto* wavPackFile{ dynamic_cast<const ::TagLib::WavPack::File*>(&file) })
+            {
+                audioProperties.container = ContainerType::WavPack;
+                audioProperties.codec = CodecType::WavPack;
+                audioProperties.bitsPerSample = wavPackFile->audioProperties()->bitsPerSample();
+            }
+
+            return audioProperties;
+        }
+    } // namespace
+
+    AudioFileInfo::AudioFileInfo(const std::filesystem::path& filePath, ParserOptions::AudioPropertiesReadStyle readStyle, bool enableExtraDebugLogs)
+        : _filePath{ filePath }
+        , _file{ utils::parseFile(filePath, readStyle) }
+        , _audioProperties{ computeAudioProperties(*_file) }
+        , _tagReader{ *_file, enableExtraDebugLogs }
+        , _imageReader{ *_file }
+    {
+    }
+
+    const AudioProperties& AudioFileInfo::getAudioProperties() const
+    {
+        return _audioProperties;
+    }
+
+    const IImageReader& AudioFileInfo::getImageReader() const
+    {
+        return _imageReader;
+    }
+
+    const ITagReader& AudioFileInfo::getTagReader() const
+    {
+        return _tagReader;
+    }
+
+} // namespace lms::audio::taglib

src/libs/audio/impl/taglib/AudioFileInfo.hpp

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2020 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <taglib/tfile.h>
+
+#include "audio/AudioTypes.hpp"
+#include "audio/IAudioFileInfo.hpp"
+#include "audio/IImageReader.hpp"
+#include "audio/ITagReader.hpp"
+
+#include "ImageReader.hpp"
+#include "TagReader.hpp"
+
+namespace lms::audio::taglib
+{
+    class AudioFileInfo final : public IAudioFileInfo
+    {
+    public:
+        AudioFileInfo(const std::filesystem::path& filePath, ParserOptions::AudioPropertiesReadStyle readStyle, bool enableExtraDebugLogs);
+
+    private:
+        const AudioProperties& getAudioProperties() const override;
+        const IImageReader& getImageReader() const override;
+        const ITagReader& getTagReader() const override;
+
+        const std::filesystem::path _filePath;
+        std::unique_ptr<::TagLib::File> _file;
+        const AudioProperties _audioProperties;
+        const TagReader _tagReader;
+        const ImageReader _imageReader;
+    };
+} // namespace lms::audio::taglib

src/libs/audio/impl/taglib/ImageReader.cpp

@@ -17,7 +17,7 @@
  * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "TagLibImageReader.hpp"
+#include "ImageReader.hpp"
 
 #include "TagLibDefs.hpp"
 
@@ -33,16 +33,14 @@
 #include <taglib/mpcfile.h>
 #include <taglib/mpegfile.h>
 #include <taglib/opusfile.h>
+#include <taglib/tfile.h>
 #include <taglib/vorbisfile.h>
 #include <taglib/wavfile.h>
 #include <taglib/wavpackfile.h>
 
-#include "core/ILogger.hpp"
-#include "metadata/Exception.hpp"
+#include "core/String.hpp"
 
-#include "taglib/Utils.hpp"
-
-namespace lms::metadata::taglib
+namespace lms::audio::taglib
 {
     namespace
     {
@@ -50,47 +48,47 @@ namespace lms::metadata::taglib
         {
             switch (type)
             {
-            case TagLib::ID3v2::AttachedPictureFrame::Type::Other:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::Other:
                 return Image::Type::Other;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::FileIcon:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::FileIcon:
                 return Image::Type::FileIcon;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::OtherFileIcon:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::OtherFileIcon:
                 return Image::Type::OtherFileIcon;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::FrontCover:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::FrontCover:
                 return Image::Type::FrontCover;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::BackCover:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::BackCover:
                 return Image::Type::BackCover;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::LeafletPage:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::LeafletPage:
                 return Image::Type::LeafletPage;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::Media:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::Media:
                 return Image::Type::Media;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::LeadArtist:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::LeadArtist:
                 return Image::Type::LeadArtist;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::Artist:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::Artist:
                 return Image::Type::Artist;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::Conductor:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::Conductor:
                 return Image::Type::Conductor;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::Band:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::Band:
                 return Image::Type::Band;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::Composer:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::Composer:
                 return Image::Type::Composer;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::Lyricist:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::Lyricist:
                 return Image::Type::Lyricist;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::RecordingLocation:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::RecordingLocation:
                 return Image::Type::RecordingLocation;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::DuringRecording:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::DuringRecording:
                 return Image::Type::DuringRecording;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::DuringPerformance:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::DuringPerformance:
                 return Image::Type::DuringPerformance;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::MovieScreenCapture:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::MovieScreenCapture:
                 return Image::Type::MovieScreenCapture;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::ColouredFish:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::ColouredFish:
                 return Image::Type::ColouredFish;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::Illustration:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::Illustration:
                 return Image::Type::Illustration;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::BandLogo:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::BandLogo:
                 return Image::Type::BandLogo;
-            case TagLib::ID3v2::AttachedPictureFrame::Type::PublisherLogo:
+            case ::TagLib::ID3v2::AttachedPictureFrame::Type::PublisherLogo:
                 return Image::Type::PublisherLogo;
             }
 
@@ -101,47 +99,47 @@ namespace lms::metadata::taglib
         {
             switch (type)
             {
-            case TagLib::ASF::Picture::Type::Other:
+            case ::TagLib::ASF::Picture::Type::Other:
                 return Image::Type::Other;
-            case TagLib::ASF::Picture::Type::FileIcon:
+            case ::TagLib::ASF::Picture::Type::FileIcon:
                 return Image::Type::FileIcon;
-            case TagLib::ASF::Picture::Type::OtherFileIcon:
+            case ::TagLib::ASF::Picture::Type::OtherFileIcon:
                 return Image::Type::OtherFileIcon;
-            case TagLib::ASF::Picture::Type::FrontCover:
+            case ::TagLib::ASF::Picture::Type::FrontCover:
                 return Image::Type::FrontCover;
-            case TagLib::ASF::Picture::Type::BackCover:
+            case ::TagLib::ASF::Picture::Type::BackCover:
                 return Image::Type::BackCover;
-            case TagLib::ASF::Picture::Type::LeafletPage:
+            case ::TagLib::ASF::Picture::Type::LeafletPage:
                 return Image::Type::LeafletPage;
-            case TagLib::ASF::Picture::Type::Media:
+            case ::TagLib::ASF::Picture::Type::Media:
                 return Image::Type::Media;
-            case TagLib::ASF::Picture::Type::LeadArtist:
+            case ::TagLib::ASF::Picture::Type::LeadArtist:
                 return Image::Type::LeadArtist;
-            case TagLib::ASF::Picture::Type::Artist:
+            case ::TagLib::ASF::Picture::Type::Artist:
                 return Image::Type::Artist;
-            case TagLib::ASF::Picture::Type::Conductor:
+            case ::TagLib::ASF::Picture::Type::Conductor:
                 return Image::Type::Conductor;
-            case TagLib::ASF::Picture::Type::Band:
+            case ::TagLib::ASF::Picture::Type::Band:
                 return Image::Type::Band;
-            case TagLib::ASF::Picture::Type::Composer:
+            case ::TagLib::ASF::Picture::Type::Composer:
                 return Image::Type::Composer;
-            case TagLib::ASF::Picture::Type::Lyricist:
+            case ::TagLib::ASF::Picture::Type::Lyricist:
                 return Image::Type::Lyricist;
-            case TagLib::ASF::Picture::Type::RecordingLocation:
+            case ::TagLib::ASF::Picture::Type::RecordingLocation:
                 return Image::Type::RecordingLocation;
-            case TagLib::ASF::Picture::Type::DuringRecording:
+            case ::TagLib::ASF::Picture::Type::DuringRecording:
                 return Image::Type::DuringRecording;
-            case TagLib::ASF::Picture::Type::DuringPerformance:
+            case ::TagLib::ASF::Picture::Type::DuringPerformance:
                 return Image::Type::DuringPerformance;
-            case TagLib::ASF::Picture::Type::MovieScreenCapture:
+            case ::TagLib::ASF::Picture::Type::MovieScreenCapture:
                 return Image::Type::MovieScreenCapture;
-            case TagLib::ASF::Picture::Type::ColouredFish:
+            case ::TagLib::ASF::Picture::Type::ColouredFish:
                 return Image::Type::ColouredFish;
-            case TagLib::ASF::Picture::Type::Illustration:
+            case ::TagLib::ASF::Picture::Type::Illustration:
                 return Image::Type::Illustration;
-            case TagLib::ASF::Picture::Type::BandLogo:
+            case ::TagLib::ASF::Picture::Type::BandLogo:
                 return Image::Type::BandLogo;
-            case TagLib::ASF::Picture::Type::PublisherLogo:
+            case ::TagLib::ASF::Picture::Type::PublisherLogo:
                 return Image::Type::PublisherLogo;
             }
 
@@ -152,47 +150,47 @@ namespace lms::metadata::taglib
         {
             switch (type)
             {
-            case TagLib::FLAC::Picture::Type::Other:
+            case ::TagLib::FLAC::Picture::Type::Other:
                 return Image::Type::Other;
-            case TagLib::FLAC::Picture::Type::FileIcon:
+            case ::TagLib::FLAC::Picture::Type::FileIcon:
                 return Image::Type::FileIcon;
-            case TagLib::FLAC::Picture::Type::OtherFileIcon:
+            case ::TagLib::FLAC::Picture::Type::OtherFileIcon:
                 return Image::Type::OtherFileIcon;
-            case TagLib::FLAC::Picture::Type::FrontCover:
+            case ::TagLib::FLAC::Picture::Type::FrontCover:
                 return Image::Type::FrontCover;
-            case TagLib::FLAC::Picture::Type::BackCover:
+            case ::TagLib::FLAC::Picture::Type::BackCover:
                 return Image::Type::BackCover;
-            case TagLib::FLAC::Picture::Type::LeafletPage:
+            case ::TagLib::FLAC::Picture::Type::LeafletPage:
                 return Image::Type::LeafletPage;
-            case TagLib::FLAC::Picture::Type::Media:
+            case ::TagLib::FLAC::Picture::Type::Media:
                 return Image::Type::Media;
-            case TagLib::FLAC::Picture::Type::LeadArtist:
+            case ::TagLib::FLAC::Picture::Type::LeadArtist:
                 return Image::Type::LeadArtist;
-            case TagLib::FLAC::Picture::Type::Artist:
+            case ::TagLib::FLAC::Picture::Type::Artist:
                 return Image::Type::Artist;
-            case TagLib::FLAC::Picture::Type::Conductor:
+            case ::TagLib::FLAC::Picture::Type::Conductor:
                 return Image::Type::Conductor;
-            case TagLib::FLAC::Picture::Type::Band:
+            case ::TagLib::FLAC::Picture::Type::Band:
                 return Image::Type::Band;
-            case TagLib::FLAC::Picture::Type::Composer:
+            case ::TagLib::FLAC::Picture::Type::Composer:
                 return Image::Type::Composer;
-            case TagLib::FLAC::Picture::Type::Lyricist:
+            case ::TagLib::FLAC::Picture::Type::Lyricist:
                 return Image::Type::Lyricist;
-            case TagLib::FLAC::Picture::Type::RecordingLocation:
+            case ::TagLib::FLAC::Picture::Type::RecordingLocation:
                 return Image::Type::RecordingLocation;
-            case TagLib::FLAC::Picture::Type::DuringRecording:
+            case ::TagLib::FLAC::Picture::Type::DuringRecording:
                 return Image::Type::DuringRecording;
-            case TagLib::FLAC::Picture::Type::DuringPerformance:
+            case ::TagLib::FLAC::Picture::Type::DuringPerformance:
                 return Image::Type::DuringPerformance;
-            case TagLib::FLAC::Picture::Type::MovieScreenCapture:
+            case ::TagLib::FLAC::Picture::Type::MovieScreenCapture:
                 return Image::Type::MovieScreenCapture;
-            case TagLib::FLAC::Picture::Type::ColouredFish:
+            case ::TagLib::FLAC::Picture::Type::ColouredFish:
                 return Image::Type::ColouredFish;
-            case TagLib::FLAC::Picture::Type::Illustration:
+            case ::TagLib::FLAC::Picture::Type::Illustration:
                 return Image::Type::Illustration;
-            case TagLib::FLAC::Picture::Type::BandLogo:
+            case ::TagLib::FLAC::Picture::Type::BandLogo:
                 return Image::Type::BandLogo;
-            case TagLib::FLAC::Picture::Type::PublisherLogo:
+            case ::TagLib::FLAC::Picture::Type::PublisherLogo:
                 return Image::Type::PublisherLogo;
             }
 
@@ -203,44 +201,44 @@ namespace lms::metadata::taglib
         {
             switch (format)
             {
-            case TagLib::MP4::CoverArt::Format::BMP:
+            case ::TagLib::MP4::CoverArt::Format::BMP:
                 return "image/bmp";
-            case TagLib::MP4::CoverArt::Format::GIF:
+            case ::TagLib::MP4::CoverArt::Format::GIF:
                 return "image/gif";
-            case TagLib::MP4::CoverArt::Format::JPEG:
+            case ::TagLib::MP4::CoverArt::Format::JPEG:
                 return "image/jpeg";
-            case TagLib::MP4::CoverArt::Format::PNG:
+            case ::TagLib::MP4::CoverArt::Format::PNG:
                 return "image/png";
-            case TagLib::MP4::CoverArt::Format::Unknown:
+            case ::TagLib::MP4::CoverArt::Format::Unknown:
                 return "application/octet-stream";
             }
 
             return "application/octet-stream";
         }
 
-#if TAGLIB_HAS_APE_COMPLEX_PROPERTIES
+#if LMS_TAGLIB_HAS_APE_COMPLEX_PROPERTIES
         Image::Type imageTypeFromAPEPictureType(std::string_view pictureType)
         {
             if (core::stringUtils::stringCaseInsensitiveContains(pictureType, "front"))
                 return Image::Type::FrontCover;
-            else if (core::stringUtils::stringCaseInsensitiveContains(pictureType, "back"))
+            if (core::stringUtils::stringCaseInsensitiveContains(pictureType, "back"))
                 return Image::Type::BackCover;
 
             return Image::Type::Unknown;
         }
-#endif // TAGLIB_HAS_APE_COMPLEX_PROPERTIES
+#endif // LMS_TAGLIB_HAS_APE_COMPLEX_PROPERTIES
 
-        void visitID3V2Images(const TagLib::ID3v2::Tag& id3v2Tags, TagLibImageReader::ImageVisitor visitor)
+        void visitID3V2Images(const ::TagLib::ID3v2::Tag& id3v2Tags, const ImageReader::ImageVisitor& visitor)
         {
             const auto& frameListMap{ id3v2Tags.frameListMap() };
 
-            for (const TagLib::ID3v2::Frame* frame : frameListMap["APIC"])
+            for (const ::TagLib::ID3v2::Frame* frame : frameListMap["APIC"])
             {
-                const auto* attachedPictureFrame{ dynamic_cast<const TagLib::ID3v2::AttachedPictureFrame*>(frame) };
+                const auto* attachedPictureFrame{ dynamic_cast<const ::TagLib::ID3v2::AttachedPictureFrame*>(frame) };
                 if (!attachedPictureFrame)
                     continue;
 
-                TagLib::ByteVector picture{ attachedPictureFrame->picture() };
+                ::TagLib::ByteVector picture{ attachedPictureFrame->picture() };
                 std::span<const std::byte> pictureData{ reinterpret_cast<const std::byte*>(picture.data()), picture.size() };
 
                 Image image;
@@ -252,15 +250,15 @@ namespace lms::metadata::taglib
             }
         }
 
-        void visitASFImages(const TagLib::ASF::Tag& asfTags, TagLibImageReader::ImageVisitor visitor)
+        void visitASFImages(const ::TagLib::ASF::Tag& asfTags, const ImageReader::ImageVisitor& visitor)
         {
-            for (const TagLib::ASF::Attribute& attribute : asfTags.attribute("WM/Picture"))
+            for (const ::TagLib::ASF::Attribute& attribute : asfTags.attribute("WM/Picture"))
             {
-                TagLib::ASF::Picture asfPicture{ attribute.toPicture() };
+                ::TagLib::ASF::Picture asfPicture{ attribute.toPicture() };
                 if (!asfPicture.isValid())
                     continue;
 
-                TagLib::ByteVector picture{ asfPicture.picture() };
+                ::TagLib::ByteVector picture{ asfPicture.picture() };
                 std::span<const std::byte> pictureData{ reinterpret_cast<const std::byte*>(picture.data()), picture.size() };
 
                 Image image;
@@ -273,22 +271,22 @@ namespace lms::metadata::taglib
             }
         }
 
-        void visitMP4Images(const TagLib::MP4::File& mp4File, TagLibImageReader::ImageVisitor visitor)
+        void visitMP4Images(const ::TagLib::MP4::File& mp4File, const ImageReader::ImageVisitor& visitor)
         {
-            const TagLib::MP4::Item coverItem{ mp4File.tag()->item("covr") };
+            const ::TagLib::MP4::Item coverItem{ mp4File.tag()->item("covr") };
             if (!coverItem.isValid())
                 return;
 
-#if TAGLIB_HAS_MP4_ITEM_TYPE
-            if (coverItem.type() != TagLib::MP4::Item::Type::CoverArtList)
+#if LMS_TAGLIB_HAS_MP4_ITEM_TYPE
+            if (coverItem.type() != ::TagLib::MP4::Item::Type::CoverArtList)
                 return;
 #endif
-            TagLib::MP4::CoverArtList coverArtList{ coverItem.toCoverArtList() };
+            ::TagLib::MP4::CoverArtList coverArtList{ coverItem.toCoverArtList() };
 
             bool firstCover{ true };
             for (TagLib::MP4::CoverArt& coverArt : coverArtList)
             {
-                TagLib::ByteVector picture{ coverArt.data() };
+                ::TagLib::ByteVector picture{ coverArt.data() };
                 std::span<const std::byte> pictureData{ reinterpret_cast<const std::byte*>(picture.data()), picture.size() };
 
                 Image image;
@@ -303,11 +301,11 @@ namespace lms::metadata::taglib
             }
         }
 
-        void visitFLACImages(const TagLib::List<TagLib::FLAC::Picture*> pictureList, TagLibImageReader::ImageVisitor visitor)
+        void visitFLACImages(const ::TagLib::List<TagLib::FLAC::Picture*>& pictureList, const ImageReader::ImageVisitor& visitor)
         {
             for (TagLib::FLAC::Picture* flacPicture : pictureList)
             {
-                TagLib::ByteVector picture{ flacPicture->data() };
+                ::TagLib::ByteVector picture{ flacPicture->data() };
                 std::span<const std::byte> pictureData{ reinterpret_cast<const std::byte*>(picture.data()), picture.size() };
 
                 Image image;
@@ -320,14 +318,14 @@ namespace lms::metadata::taglib
             }
         }
 
-        void visitAPEImages([[maybe_unused]] const TagLib::APE::Tag& apeTags, [[maybe_unused]] TagLibImageReader::ImageVisitor visitor)
+        void visitAPEImages([[maybe_unused]] const ::TagLib::APE::Tag& apeTags, [[maybe_unused]] const ImageReader::ImageVisitor& visitor)
         {
-#if TAGLIB_HAS_APE_COMPLEX_PROPERTIES
-            const TagLib::List<TagLib::VariantMap> pictureProperties{ apeTags.complexProperties("PICTURE") };
-            for (const TagLib::VariantMap& pictureProperty : pictureProperties)
+#if LMS_TAGLIB_HAS_APE_COMPLEX_PROPERTIES
+            const ::TagLib::List<TagLib::VariantMap> pictureProperties{ apeTags.complexProperties("PICTURE") };
+            for (const ::TagLib::VariantMap& pictureProperty : pictureProperties)
             {
                 Image image;
-                TagLib::ByteVector picture;
+                ::TagLib::ByteVector picture;
 
                 if (auto it{ pictureProperty.find("pictureType") }; it != pictureProperty.cend())
                     image.type = imageTypeFromAPEPictureType(it->second.toString().to8Bit(true));
@@ -344,81 +342,77 @@ namespace lms::metadata::taglib
                 if (!image.data.empty())
                     visitor(image);
             }
-
-#endif // TAGLIB_HAS_APE_COMPLEX_PROPERTIES
+#endif // LMS_TAGLIB_HAS_APE_COMPLEX_PROPERTIES
         }
     } // namespace
 
-    TagLibImageReader::TagLibImageReader(const std::filesystem::path& p)
-        : _file{ utils::parseFile(p, TagLib::AudioProperties::ReadStyle::Fast, utils::ReadAudioProperties{ false }) }
+    ImageReader::ImageReader(::TagLib::File& file)
+        : _file{ file }
     {
-        if (!_file)
-        {
-            LMS_LOG(METADATA, ERROR, "File " << p << ": parsing failed");
-            throw AudioFileParsingException{};
-        }
     }
 
-    void TagLibImageReader::visitImages(ImageVisitor visitor) const
+    ImageReader::~ImageReader() = default;
+
+    void ImageReader::visitImages(const ImageVisitor& visitor) const
     {
         // MP3
-        if (TagLib::MPEG::File * mp3File{ dynamic_cast<TagLib::MPEG::File*>(_file.get()) })
+        if (TagLib::MPEG::File * mp3File{ dynamic_cast<TagLib::MPEG::File*>(&_file) })
         {
             if (mp3File->hasID3v2Tag())
-                visitID3V2Images(*mp3File->ID3v2Tag(), std::move(visitor));
+                visitID3V2Images(*mp3File->ID3v2Tag(), visitor);
         }
         // MP4
-        else if (TagLib::MP4::File * mp4File{ dynamic_cast<TagLib::MP4::File*>(_file.get()) })
+        else if (const TagLib::MP4::File * mp4File{ dynamic_cast<const TagLib::MP4::File*>(&_file) })
         {
-            visitMP4Images(*mp4File, std::move(visitor));
+            visitMP4Images(*mp4File, visitor);
         }
         // WMA
-        else if (TagLib::ASF::File * asfFile{ dynamic_cast<TagLib::ASF::File*>(_file.get()) })
+        else if (const TagLib::ASF::File * asfFile{ dynamic_cast<const TagLib::ASF::File*>(&_file) })
         {
-            if (const TagLib::ASF::Tag * tag{ asfFile->tag() })
-                visitASFImages(*tag, std::move(visitor));
+            if (const ::TagLib::ASF::Tag * tag{ asfFile->tag() })
+                visitASFImages(*tag, visitor);
         }
         // FLAC
-        else if (TagLib::FLAC::File * flacFile{ dynamic_cast<TagLib::FLAC::File*>(_file.get()) })
+        else if (TagLib::FLAC::File * flacFile{ dynamic_cast<TagLib::FLAC::File*>(&_file) })
         {
             if (flacFile->hasID3v2Tag()) // usage discouraged
-                visitID3V2Images(*flacFile->ID3v2Tag(), std::move(visitor));
+                visitID3V2Images(*flacFile->ID3v2Tag(), visitor);
             else
-                visitFLACImages(flacFile->pictureList(), std::move(visitor));
+                visitFLACImages(flacFile->pictureList(), visitor);
         }
         // Ogg vorbis
-        else if (TagLib::Ogg::Vorbis::File * vorbisFile{ dynamic_cast<TagLib::Ogg::Vorbis::File*>(_file.get()) })
+        else if (const TagLib::Ogg::Vorbis::File * vorbisFile{ dynamic_cast<const TagLib::Ogg::Vorbis::File*>(&_file) })
         {
-            visitFLACImages(vorbisFile->tag()->pictureList(), std::move(visitor));
+            visitFLACImages(vorbisFile->tag()->pictureList(), visitor);
         }
         // Ogg Opus
-        else if (TagLib::Ogg::Opus::File * opusFile{ dynamic_cast<TagLib::Ogg::Opus::File*>(_file.get()) })
+        else if (const TagLib::Ogg::Opus::File * opusFile{ dynamic_cast<TagLib::Ogg::Opus::File*>(&_file) })
         {
-            visitFLACImages(opusFile->tag()->pictureList(), std::move(visitor));
+            visitFLACImages(opusFile->tag()->pictureList(), visitor);
         }
         // Aiff
-        else if (TagLib::RIFF::AIFF::File * aiffFile{ dynamic_cast<TagLib::RIFF::AIFF::File*>(_file.get()) })
+        else if (const TagLib::RIFF::AIFF::File * aiffFile{ dynamic_cast<TagLib::RIFF::AIFF::File*>(&_file) })
         {
             if (aiffFile->hasID3v2Tag())
-                visitID3V2Images(*aiffFile->tag(), std::move(visitor));
+                visitID3V2Images(*aiffFile->tag(), visitor);
         }
         // Wav
-        else if (TagLib::RIFF::WAV::File * wavFile{ dynamic_cast<TagLib::RIFF::WAV::File*>(_file.get()) })
+        else if (const TagLib::RIFF::WAV::File * wavFile{ dynamic_cast<TagLib::RIFF::WAV::File*>(&_file) })
         {
             if (wavFile->hasID3v2Tag())
-                visitID3V2Images(*wavFile->ID3v2Tag(), std::move(visitor));
+                visitID3V2Images(*wavFile->ID3v2Tag(), visitor);
         }
         // MPC
-        else if (TagLib::MPC::File * mpcFile{ dynamic_cast<TagLib::MPC::File*>(_file.get()) })
+        else if (TagLib::MPC::File * mpcFile{ dynamic_cast<TagLib::MPC::File*>(&_file) })
         {
             if (mpcFile->hasAPETag())
-                visitAPEImages(*mpcFile->APETag(), std::move(visitor));
+                visitAPEImages(*mpcFile->APETag(), visitor);
         }
         // WavPack
-        else if (TagLib::WavPack::File * wavPackFile{ dynamic_cast<TagLib::WavPack::File*>(_file.get()) })
+        else if (TagLib::WavPack::File * wavPackFile{ dynamic_cast<TagLib::WavPack::File*>(&_file) })
         {
             if (wavPackFile->hasAPETag())
-                visitAPEImages(*wavPackFile->APETag(), std::move(visitor));
+                visitAPEImages(*wavPackFile->APETag(), visitor);
         }
     }
-} // namespace lms::metadata::taglib
+} // namespace lms::audio::taglib

src/libs/audio/impl/taglib/ImageReader.hpp

@@ -19,27 +19,26 @@
 
 #pragma once
 
-#include "IImageReader.hpp"
+#include "audio/IImageReader.hpp"
 
-namespace lms::av
+namespace TagLib
 {
-    class IAudioFile;
+    class File;
 }
 
-namespace lms::metadata::avformat
+namespace lms::audio::taglib
 {
-    class AvFormatImageReader : public IImageReader
+    class ImageReader : public IImageReader
     {
     public:
-        AvFormatImageReader(const std::filesystem::path& p);
-        ~AvFormatImageReader() override;
-
-        AvFormatImageReader(const AvFormatImageReader&) = delete;
-        AvFormatImageReader& operator=(const AvFormatImageReader&) = delete;
+        ImageReader(TagLib::File& _file);
+        ~ImageReader() override;
+        ImageReader(const ImageReader&) = delete;
+        ImageReader& operator=(const ImageReader&) = delete;
 
     private:
-        void visitImages(ImageVisitor visitor) const override;
+        void visitImages(const ImageVisitor& visitor) const override;
 
-        std::unique_ptr<av::IAudioFile> _audioFile;
+        TagLib::File& _file;
     };
-} // namespace lms::metadata::avformat
+} // namespace lms::audio::taglib

src/libs/audio/impl/taglib/TagLibDefs.hpp

@@ -22,15 +22,20 @@
 #include <taglib/taglib.h>
 
 #if (TAGLIB_MAJOR_VERSION >= 2)
-    #define TAGLIB_HAS_DSF 1
+    #define LMS_TAGLIB_HAS_DSF 1
 #endif
 
-// TAGLIB_HAS_MP4_ITEM_TYPE if version >= 2.0.1
+// LMS_TAGLIB_HAS_MP4_ITEM_TYPE if version >= 2.0.1
 #if ((TAGLIB_MAJOR_VERSION > 2) || (TAGLIB_MAJOR_VERSION == 2 && TAGLIB_MINOR_VERSION > 0) || (TAGLIB_MAJOR_VERSION == 2 && TAGLIB_PATCH_VERSION >= 1))
-    #define TAGLIB_HAS_MP4_ITEM_TYPE 1
+    #define LMS_TAGLIB_HAS_MP4_ITEM_TYPE 1
 #endif
 
-// TAGLIB_HAS_APE_COMPLEX_PROPERTIES if version >= 2.0.2
+// LMS_TAGLIB_HAS_APE_COMPLEX_PROPERTIES if version >= 2.0.2
 #if ((TAGLIB_MAJOR_VERSION > 2) || (TAGLIB_MAJOR_VERSION == 2 && TAGLIB_MINOR_VERSION > 0) || (TAGLIB_MAJOR_VERSION == 2 && TAGLIB_PATCH_VERSION >= 2))
-    #define TAGLIB_HAS_APE_COMPLEX_PROPERTIES 1
+    #define LMS_TAGLIB_HAS_APE_COMPLEX_PROPERTIES 1
+#endif
+
+// LMS_TAGLIB_HAS_SHORTEN if version >= 2.1
+#if ((TAGLIB_MAJOR_VERSION > 2) || (TAGLIB_MAJOR_VERSION == 2 && TAGLIB_MINOR_VERSION >= 1))
+    #define LMS_TAGLIB_HAS_SHORTEN 1
 #endif

src/libs/audio/impl/taglib/TagReader.cpp

@@ -17,7 +17,7 @@
  * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "TagLibTagReader.hpp"
+#include "TagReader.hpp"
 
 #include <unordered_map>
 
@@ -25,7 +25,6 @@
 
 #include <taglib/aifffile.h>
 #include <taglib/apefile.h>
-#include <taglib/apeproperties.h>
 #include <taglib/apetag.h>
 #include <taglib/asffile.h>
 #include <taglib/flacfile.h>
@@ -38,33 +37,25 @@
 #include <taglib/speexfile.h>
 #include <taglib/synchronizedlyricsframe.h>
 #include <taglib/tag.h>
+#include <taglib/tfile.h>
 #include <taglib/tpropertymap.h>
 #include <taglib/trueaudiofile.h>
 #include <taglib/unsynchronizedlyricsframe.h>
 #include <taglib/vorbisfile.h>
 #include <taglib/wavfile.h>
 #include <taglib/wavpackfile.h>
-#if TAGLIB_HAS_DSF
+#if LMS_TAGLIB_HAS_DSF
     #include <taglib/dsdifffile.h>
     #include <taglib/dsffile.h>
 #endif
 
 #include "core/ILogger.hpp"
 #include "core/String.hpp"
-#include "metadata/Exception.hpp"
 
-#include "Utils.hpp"
-
-namespace lms::metadata::taglib
+namespace lms::audio::taglib
 {
     namespace
     {
-        class TagParsingFailedException : public Exception
-        {
-        public:
-            using Exception::Exception;
-        };
-
         // Mapping to internal taglib names and/or common alternative custom names
         const std::unordered_map<TagType, std::vector<std::string>> tagLibTagMapping{
             { TagType::AcoustID, { "ACOUSTID_ID", "ACOUSTID ID" } },
@@ -181,7 +172,7 @@ namespace lms::metadata::taglib
             { TagType::Writer, { "WRITER" } },
         };
 
-        void mergeTagMaps(TagLib::PropertyMap& dst, TagLib::PropertyMap&& src)
+        void mergeTagMaps(TagLib::PropertyMap& dst, ::TagLib::PropertyMap&& src)
         {
             for (auto&& [tag, values] : src)
             {
@@ -190,49 +181,36 @@ namespace lms::metadata::taglib
             }
         }
 
-        void dedupTagValues(TagLib::PropertyMap& propertyMap, const std::filesystem::path& file)
+        void dedupTagValues(TagLib::PropertyMap& propertyMap)
         {
             for (auto& [key, values] : propertyMap)
             {
                 if (values.size() <= 1)
                     continue;
 
-                TagLib::StringList newList;
-                for (const TagLib::String& value : values)
+                ::TagLib::StringList newList;
+                for (const ::TagLib::String& value : values)
                 {
-                    if (!std::any_of(std::cbegin(newList), std::cend(newList), [&](const TagLib::String& v) { return v == value; }))
+                    if (!std::any_of(std::cbegin(newList), std::cend(newList), [&](const ::TagLib::String& v) { return v == value; }))
                         newList.append(value);
                 }
 
                 if (values != newList)
                 {
-                    LMS_LOG(METADATA, DEBUG, "File " << file << ": removed " << (values.size() - newList.size()) << " duplicated value(s) in tag '" << key << "', " << newList.size() << " remaining value(s)");
+                    LMS_LOG(METADATA, DEBUG, "Removed " << (values.size() - newList.size()) << " duplicated value(s) in tag '" << key << "', " << newList.size() << " remaining value(s)");
                     values = newList;
                 }
             }
         }
     } // namespace
 
-    TagLibTagReader::TagLibTagReader(const std::filesystem::path& p, ParserReadStyle parserReadStyle, bool debug)
-        : _file{ utils::parseFile(p, utils::readStyleToTagLibReadStyle(parserReadStyle), utils::ReadAudioProperties{ true }) }
+    TagReader::TagReader(::TagLib::File& file, bool enableExtraDebugLogs)
+        : _file{ file }
     {
-        if (!_file)
-        {
-            LMS_LOG(METADATA, ERROR, "File " << p << ": parsing failed");
-            throw AudioFileParsingException{ "Parsing failed" };
-        }
+        _propertyMap = _file.properties();
 
-        if (!_file->audioProperties())
-        {
-            LMS_LOG(METADATA, ERROR, "File " << p << ": no audio properties");
-            throw AudioFileNoAudioPropertiesException{};
-        }
-
-        computeAudioProperties();
-
-        _propertyMap = _file->properties();
-
-        if (debug && core::Service<core::logging::ILogger>::get()->isSeverityActive(core::logging::Severity::DEBUG))
+        enableExtraDebugLogs &= core::Service<core::logging::ILogger>::get()->isSeverityActive(core::logging::Severity::DEBUG);
+        if (enableExtraDebugLogs)
         {
             for (const auto& [key, values] : _propertyMap)
             {
@@ -245,7 +223,7 @@ namespace lms::metadata::taglib
         }
 
         // Some tags may not be known by TagLib
-        auto getAPETags = [&](const TagLib::APE::Tag* apeTag) {
+        auto getAPETags = [&](const ::TagLib::APE::Tag* apeTag) {
             if (!apeTag)
                 return;
 
@@ -254,7 +232,7 @@ namespace lms::metadata::taglib
 
         auto processID3v2Tags = [&](TagLib::ID3v2::Tag& id3v2Tags) {
             // Dedup values for some tags that may be written in both a standard tag and in a custom tag
-            dedupTagValues(_propertyMap, p);
+            dedupTagValues(_propertyMap);
 
             const auto& frameListMap{ id3v2Tags.frameListMap() };
 
@@ -264,26 +242,30 @@ namespace lms::metadata::taglib
 
             // consider each frame hold a different set of lyrics
             // Synchronized lyrics frames
-            for (const TagLib::ID3v2::Frame* frame : frameListMap["SYLT"])
+            for (const ::TagLib::ID3v2::Frame* frame : frameListMap["SYLT"])
             {
-                const auto* lyricsFrame{ dynamic_cast<const TagLib::ID3v2::SynchronizedLyricsFrame*>(frame) };
+                const auto* lyricsFrame{ dynamic_cast<const ::TagLib::ID3v2::SynchronizedLyricsFrame*>(frame) };
                 if (!lyricsFrame)
                     continue; // TODO log or assert?
 
                 const std::string language{ lyricsFrame->language().data(), lyricsFrame->language().size() };
                 std::string lyrics;
-                for (const TagLib::ID3v2::SynchronizedLyricsFrame::SynchedText& synchedText : lyricsFrame->synchedText())
+                for (const ::TagLib::ID3v2::SynchronizedLyricsFrame::SynchedText& synchedText : lyricsFrame->synchedText())
                 {
                     std::chrono::milliseconds timestamp{};
                     switch (lyricsFrame->timestampFormat())
                     {
-                    case TagLib::ID3v2::SynchronizedLyricsFrame::AbsoluteMilliseconds:
+                    case ::TagLib::ID3v2::SynchronizedLyricsFrame::AbsoluteMilliseconds:
                         timestamp = std::chrono::milliseconds{ synchedText.time };
                         break;
-                    case TagLib::ID3v2::SynchronizedLyricsFrame::AbsoluteMpegFrames:
-                        timestamp = std::chrono::milliseconds{ _audioProperties.sampleRate ? (synchedText.time * 1000) / _audioProperties.sampleRate : 0 };
+                    case ::TagLib::ID3v2::SynchronizedLyricsFrame::AbsoluteMpegFrames:
+                        {
+                            const ::TagLib::AudioProperties* properties{ file.audioProperties() };
+                            if (properties && properties->sampleRate())
+                                timestamp = std::chrono::milliseconds{ synchedText.time * 1000 / properties->sampleRate() };
+                        }
                         break;
-                    case TagLib::ID3v2::SynchronizedLyricsFrame::Unknown:
+                    case ::TagLib::ID3v2::SynchronizedLyricsFrame::Unknown:
                         break;
                     }
 
@@ -298,9 +280,9 @@ namespace lms::metadata::taglib
             }
 
             // Unsynchronized lyrics frames
-            for (const TagLib::ID3v2::Frame* frame : frameListMap["USLT"])
+            for (const ::TagLib::ID3v2::Frame* frame : frameListMap["USLT"])
             {
-                const auto* lyricsFrame{ dynamic_cast<const TagLib::ID3v2::UnsynchronizedLyricsFrame*>(frame) };
+                const auto* lyricsFrame{ dynamic_cast<const ::TagLib::ID3v2::UnsynchronizedLyricsFrame*>(frame) };
                 if (!lyricsFrame)
                     continue; // TODO log or assert?
 
@@ -310,9 +292,9 @@ namespace lms::metadata::taglib
         };
 
         // WMA
-        if (TagLib::ASF::File * asfFile{ dynamic_cast<TagLib::ASF::File*>(_file.get()) })
+        if (const ::TagLib::ASF::File * asfFile{ dynamic_cast<const ::TagLib::ASF::File*>(&_file) })
         {
-            if (const TagLib::ASF::Tag * tag{ asfFile->tag() })
+            if (const ::TagLib::ASF::Tag * tag{ asfFile->tag() })
             {
                 for (const auto& [name, attributeList] : tag->attributeListMap())
                 {
@@ -320,19 +302,19 @@ namespace lms::metadata::taglib
                         continue;
 
                     const std::string strName{ core::stringUtils::stringToUpper(name.to8Bit(true)) };
-                    if (debug)
+                    if (enableExtraDebugLogs)
                     {
                         for (const auto& attribute : attributeList)
-                            LMS_LOG(METADATA, DEBUG, "ASF Attribute, Key = '" << strName << "', value = '" << (attribute.type() == TagLib::ASF::Attribute::AttributeTypes::UnicodeType ? attribute.toString() : TagLib::String{ "<Non unicode>" }) << "'");
+                            LMS_LOG(METADATA, DEBUG, "ASF Attribute, Key = '" << strName << "', value = '" << (attribute.type() == ::TagLib::ASF::Attribute::AttributeTypes::UnicodeType ? attribute.toString() : ::TagLib::String{ "<Non unicode>" }) << "'");
                     }
 
                     if (strName.find("WM/") == 0 || _propertyMap.contains(strName))
                         continue;
 
-                    TagLib::StringList strAttributes;
-                    for (const TagLib::ASF::Attribute& attribute : attributeList)
+                    ::TagLib::StringList strAttributes;
+                    for (const ::TagLib::ASF::Attribute& attribute : attributeList)
                     {
-                        if (attribute.type() == TagLib::ASF::Attribute::AttributeTypes::UnicodeType)
+                        if (attribute.type() == ::TagLib::ASF::Attribute::AttributeTypes::UnicodeType)
                             strAttributes.append(attribute.toString());
                     }
 
@@ -356,23 +338,23 @@ namespace lms::metadata::taglib
             }
         }
         // MP3
-        else if (TagLib::MPEG::File * mp3File{ dynamic_cast<TagLib::MPEG::File*>(_file.get()) })
+        else if (TagLib::MPEG::File * mp3File{ dynamic_cast<TagLib::MPEG::File*>(&_file) })
         {
             if (mp3File->hasID3v2Tag())
-                processID3v2Tags(*mp3File->ID3v2Tag());
+                processID3v2Tags(*mp3File->ID3v2Tag(false));
 
             getAPETags(mp3File->APETag());
         }
         // MP4
-        else if (TagLib::MP4::File * mp4File{ dynamic_cast<TagLib::MP4::File*>(_file.get()) })
+        else if (const ::TagLib::MP4::File * mp4File{ dynamic_cast<const ::TagLib::MP4::File*>(&_file) })
         {
             // Taglib does not expose rtng in properties
-            if (const TagLib::MP4::Item rtngItem{ mp4File->tag()->item("rtng") }; rtngItem.isValid())
+            if (const ::TagLib::MP4::Item rtngItem{ mp4File->tag()->item("rtng") }; rtngItem.isValid())
             {
-#if TAGLIB_HAS_MP4_ITEM_TYPE
-                if (rtngItem.type() == TagLib::MP4::Item::Type::Byte)
+#if LMS_TAGLIB_HAS_MP4_ITEM_TYPE
+                if (rtngItem.type() == ::TagLib::MP4::Item::Type::Byte)
 #endif
-                    _propertyMap["ITUNESADVISORY"] = TagLib::String{ std::to_string(rtngItem.toByte()) };
+                    _propertyMap["ITUNESADVISORY"] = ::TagLib::String{ std::to_string(rtngItem.toByte()) };
             }
 
             if (!_propertyMap.contains("ORIGINALDATE"))
@@ -386,7 +368,7 @@ namespace lms::metadata::taglib
                     auto itOrigDateTag{ tags.find(origDateString) };
                     if (itOrigDateTag != std::cend(tags))
                     {
-                        const TagLib::StringList dates{ itOrigDateTag->second.toStringList() };
+                        const ::TagLib::StringList dates{ itOrigDateTag->second.toStringList() };
                         if (!dates.isEmpty())
                         {
                             _propertyMap["ORIGINALDATE"] = dates.front();
@@ -397,68 +379,36 @@ namespace lms::metadata::taglib
             }
         }
         // MPC
-        else if (TagLib::MPC::File * mpcFile{ dynamic_cast<TagLib::MPC::File*>(_file.get()) })
+        else if (::TagLib::MPC::File * mpcFile{ dynamic_cast<TagLib::MPC::File*>(&_file) })
         {
             getAPETags(mpcFile->APETag());
         }
         // WavPack
-        else if (TagLib::WavPack::File * wavPackFile{ dynamic_cast<TagLib::WavPack::File*>(_file.get()) })
+        else if (TagLib::WavPack::File * wavPackFile{ dynamic_cast<TagLib::WavPack::File*>(&_file) })
         {
             getAPETags(wavPackFile->APETag());
         }
         // FLAC
-        else if (TagLib::FLAC::File * flacFile{ dynamic_cast<TagLib::FLAC::File*>(_file.get()) })
+        else if (TagLib::FLAC::File * flacFile{ dynamic_cast<TagLib::FLAC::File*>(&_file) })
         {
             if (flacFile->hasID3v2Tag()) // discouraged usage
                 processID3v2Tags(*flacFile->ID3v2Tag());
         }
-        else if (TagLib::RIFF::AIFF::File * aiffFile{ dynamic_cast<TagLib::RIFF::AIFF::File*>(_file.get()) })
+        else if (const TagLib::RIFF::AIFF::File * aiffFile{ dynamic_cast<const TagLib::RIFF::AIFF::File*>(&_file) })
         {
             if (aiffFile->hasID3v2Tag())
                 processID3v2Tags(*aiffFile->tag());
         }
-        else if (TagLib::RIFF::WAV::File * wavFile{ dynamic_cast<TagLib::RIFF::WAV::File*>(_file.get()) })
+        else if (const TagLib::RIFF::WAV::File * wavFile{ dynamic_cast<const TagLib::RIFF::WAV::File*>(&_file) })
         {
             if (wavFile->hasID3v2Tag())
                 processID3v2Tags(*wavFile->ID3v2Tag());
         }
     }
 
-    TagLibTagReader::~TagLibTagReader() = default;
+    TagReader::~TagReader() = default;
 
-    void TagLibTagReader::computeAudioProperties()
-    {
-        const TagLib::AudioProperties* properties{ _file->audioProperties() };
-
-        // Common properties
-        _audioProperties.bitrate = static_cast<std::size_t>(properties->bitrate() * 1000);
-        _audioProperties.channelCount = static_cast<std::size_t>(_file->audioProperties()->channels());
-        _audioProperties.duration = std::chrono::milliseconds{ properties->lengthInMilliseconds() };
-        _audioProperties.sampleRate = static_cast<std::size_t>(properties->sampleRate());
-
-        if (const auto* apeProperties{ dynamic_cast<const TagLib::APE::Properties*>(properties) })
-            _audioProperties.bitsPerSample = apeProperties->bitsPerSample();
-        if (const auto* asfProperties{ dynamic_cast<const TagLib::ASF::Properties*>(properties) })
-            _audioProperties.bitsPerSample = asfProperties->bitsPerSample();
-        else if (const auto* flacProperties{ dynamic_cast<const TagLib::FLAC::Properties*>(properties) })
-            _audioProperties.bitsPerSample = flacProperties->bitsPerSample();
-        else if (const auto* mp4Properties{ dynamic_cast<const TagLib::MP4::Properties*>(properties) })
-            _audioProperties.bitsPerSample = mp4Properties->bitsPerSample();
-        else if (const auto* wavePackProperties{ dynamic_cast<const TagLib::WavPack::Properties*>(properties) })
-            _audioProperties.bitsPerSample = wavePackProperties->bitsPerSample();
-        else if (const auto* aiffProperties{ dynamic_cast<const TagLib::RIFF::AIFF::Properties*>(properties) })
-            _audioProperties.bitsPerSample = aiffProperties->bitsPerSample();
-        else if (const auto* wavProperties{ dynamic_cast<const TagLib::RIFF::WAV::Properties*>(properties) })
-            _audioProperties.bitsPerSample = wavProperties->bitsPerSample();
-#if TAGLIB_HAS_DSF
-        else if (const auto* dsfProperties{ dynamic_cast<const TagLib::DSF::Properties*>(properties) })
-            _audioProperties.bitsPerSample = dsfProperties->bitsPerSample();
-        else if (const auto* dsfProperties{ dynamic_cast<const TagLib::DSDIFF::Properties*>(properties) })
-            _audioProperties.bitsPerSample = dsfProperties->bitsPerSample();
-#endif
-    }
-
-    void TagLibTagReader::visitTagValues(TagType tag, TagValueVisitor visitor) const
+    void TagReader::visitTagValues(TagType tag, TagValueVisitor visitor) const
     {
         auto itTagNames{ tagLibTagMapping.find(tag) };
         if (itTagNames == std::cend(tagLibTagMapping))
@@ -478,19 +428,19 @@ namespace lms::metadata::taglib
         }
     }
 
-    void TagLibTagReader::visitTagValues(std::string_view tag, TagValueVisitor visitor) const
+    void TagReader::visitTagValues(std::string_view tag, TagValueVisitor visitor) const
     {
-        TagLib::String key{ tag.data() /* assume null terminated */, TagLib::String::Type::UTF8 };
+        ::TagLib::String key{ tag.data() /* assume null terminated */, ::TagLib::String::Type::UTF8 };
 
         auto itValues{ _propertyMap.find(key) };
         if (itValues == std::cend(_propertyMap))
             return;
 
-        for (const TagLib::String& value : itValues->second)
+        for (const ::TagLib::String& value : itValues->second)
             visitor(value.to8Bit(true));
     }
 
-    void TagLibTagReader::visitPerformerTags(PerformerVisitor visitor) const
+    void TagReader::visitPerformerTags(PerformerVisitor visitor) const
     {
         visitTagValues("PERFORMER", [&](std::string_view value) {
             visitor("", value);
@@ -505,7 +455,7 @@ namespace lms::metadata::taglib
                 assert(rolePos != std::string::npos);
 
                 std::string_view role{ std::string_view{ performerStr }.substr(rolePos + 1) };
-                for (const TagLib::String& value : values)
+                for (const ::TagLib::String& value : values)
                 {
                     const std::string name{ value.to8Bit(true) };
                     visitor(role, name);
@@ -514,7 +464,7 @@ namespace lms::metadata::taglib
         }
     }
 
-    void TagLibTagReader::visitLyricsTags(LyricsVisitor visitor) const
+    void TagReader::visitLyricsTags(LyricsVisitor visitor) const
     {
         if (!_id3v2Lyrics.empty())
         {
@@ -529,4 +479,4 @@ namespace lms::metadata::taglib
             });
         }
     }
-} // namespace lms::metadata::taglib
+} // namespace lms::audio::taglib

src/libs/audio/impl/taglib/TagReader.hpp

@@ -19,38 +19,37 @@
 
 #pragma once
 
-#include <filesystem>
 #include <map>
-#include <span>
 #include <string>
 
-#include <taglib/tfile.h>
 #include <taglib/tpropertymap.h>
 
-#include "ITagReader.hpp"
+#include "audio/ITagReader.hpp"
 
-namespace lms::metadata::taglib
+namespace TagLib
 {
-    class TagLibTagReader : public ITagReader
+    class File;
+}
+
+namespace lms::audio::taglib
+{
+    class TagReader : public ITagReader
     {
     public:
-        TagLibTagReader(const std::filesystem::path& path, ParserReadStyle parserReadStyle, bool debug);
-        ~TagLibTagReader() override;
-        TagLibTagReader(const TagLibTagReader&) = delete;
-        TagLibTagReader& operator=(const TagLibTagReader&) = delete;
+        TagReader(::TagLib::File& file, bool enableExtraDebugLogs);
+        ~TagReader() override;
+
+        TagReader(const TagReader&) = delete;
+        TagReader& operator=(const TagReader&) = delete;
 
     private:
-        void computeAudioProperties();
         void visitTagValues(TagType tag, TagValueVisitor visitor) const override;
         void visitTagValues(std::string_view tag, TagValueVisitor visitor) const override;
         void visitPerformerTags(PerformerVisitor visitor) const override;
         void visitLyricsTags(LyricsVisitor visitor) const override;
 
-        const AudioProperties& getAudioProperties() const override { return _audioProperties; }
-
-        std::unique_ptr<TagLib::File> _file;
-        AudioProperties _audioProperties;
-        TagLib::PropertyMap _propertyMap; // case-insensitive keys
+        ::TagLib::File& _file;
+        ::TagLib::PropertyMap _propertyMap; // case-insensitive keys
         std::multimap<std::string /* language*/, std::string /* lyrics */> _id3v2Lyrics;
     };
-} // namespace lms::metadata::taglib
+} // namespace lms::audio::taglib

src/libs/audio/impl/taglib/Utils.cpp

@@ -39,15 +39,17 @@
 #include <taglib/vorbisfile.h>
 #include <taglib/wavfile.h>
 #include <taglib/wavpackfile.h>
-#if TAGLIB_HAS_DSF
-    #include <taglib/dsdifffile.h>
+#if LMS_TAGLIB_HAS_DSF
     #include <taglib/dsffile.h>
 #endif
 
 #include "core/ILogger.hpp"
 #include "core/ITraceLogger.hpp"
+#include "core/String.hpp"
 
-namespace lms::metadata::taglib::utils
+#include "audio/IAudioFileInfo.hpp"
+
+namespace lms::audio::taglib::utils
 {
     std::span<const std::filesystem::path> getSupportedExtensions()
     {
@@ -56,23 +58,23 @@ namespace lms::metadata::taglib::utils
             ".mpc", ".wv", ".ape", ".tta", ".m4a", ".m4r", ".m4b", ".m4p",
             ".3g2", ".m4v", ".wma", ".asf", ".aif", ".aiff", ".afc", ".aifc",
             ".wav",
-#if TAGLIB_HAS_DSF
-            ".dsf", ".dff", ".dsdiff"
+#if LMS_TAGLIB_HAS_DSF
+            ".dsf"
 #endif
         };
 
         return std::span<const std::filesystem::path>{ supportedExtensions };
     }
 
-    TagLib::AudioProperties::ReadStyle readStyleToTagLibReadStyle(ParserReadStyle readStyle)
+    TagLib::AudioProperties::ReadStyle readStyleToTagLibReadStyle(ParserOptions::ParserOptions::AudioPropertiesReadStyle readStyle)
     {
         switch (readStyle)
         {
-        case ParserReadStyle::Fast:
+        case ParserOptions::AudioPropertiesReadStyle::Fast:
             return TagLib::AudioProperties::ReadStyle::Fast;
-        case ParserReadStyle::Average:
+        case ParserOptions::AudioPropertiesReadStyle::Average:
             return TagLib::AudioProperties::ReadStyle::Average;
-        case ParserReadStyle::Accurate:
+        case ParserOptions::AudioPropertiesReadStyle::Accurate:
             return TagLib::AudioProperties::ReadStyle::Accurate;
         }
 
@@ -100,8 +102,9 @@ namespace lms::metadata::taglib::utils
         return TagLib::FileStream{ fd, true };
     }
 
-    std::unique_ptr<TagLib::File> parseFileByExtension(TagLib::FileStream* stream, const std::filesystem::path& extension, TagLib::AudioProperties::ReadStyle audioPropertiesStyle, bool readAudioProperties)
+    std::unique_ptr<TagLib::File> parseFileByExtension(TagLib::FileStream* stream, const std::filesystem::path& extension, TagLib::AudioProperties::ReadStyle audioPropertiesStyle)
     {
+        constexpr bool readAudioProperties{ true };
         std::unique_ptr<TagLib::File> file;
 
         if (extension.empty())
@@ -149,11 +152,9 @@ namespace lms::metadata::taglib::utils
             file = std::make_unique<TagLib::RIFF::AIFF::File>(stream, readAudioProperties, audioPropertiesStyle);
         else if (ext == "WAV")
             file = std::make_unique<TagLib::RIFF::WAV::File>(stream, readAudioProperties, audioPropertiesStyle);
-#if TAGLIB_HAS_DSF
+#if LMS_TAGLIB_HAS_DSF
         else if (ext == "DSF")
             file = std::make_unique<TagLib::DSF::File>(stream, readAudioProperties, audioPropertiesStyle);
-        else if (ext == "DFF" || ext == "DSDIFF")
-            file = std::make_unique<TagLib::DSDIFF::File>(stream, readAudioProperties, audioPropertiesStyle);
 #endif
 
         if (file && !file->isValid())
@@ -162,8 +163,9 @@ namespace lms::metadata::taglib::utils
         return file;
     }
 
-    std::unique_ptr<TagLib::File> parseFileByContent(TagLib::FileStream* stream, TagLib::AudioProperties::ReadStyle audioPropertiesStyle, bool readAudioProperties)
+    std::unique_ptr<TagLib::File> parseFileByContent(TagLib::FileStream* stream, TagLib::AudioProperties::ReadStyle audioPropertiesStyle)
     {
+        constexpr bool readAudioProperties{ true };
         std::unique_ptr<TagLib::File> file;
 
         if (TagLib::MPEG::File::isSupported(stream))
@@ -200,11 +202,9 @@ namespace lms::metadata::taglib::utils
             file = std::make_unique<TagLib::RIFF::AIFF::File>(stream, readAudioProperties, audioPropertiesStyle);
         else if (TagLib::RIFF::WAV::File::isSupported(stream))
             file = std::make_unique<TagLib::RIFF::WAV::File>(stream, readAudioProperties, audioPropertiesStyle);
-#if TAGLIB_HAS_DSF
+#if LMS_TAGLIB_HAS_DSF
         else if (TagLib::DSF::File::isSupported(stream))
             file = std::make_unique<TagLib::DSF::File>(stream, readAudioProperties, audioPropertiesStyle);
-        else if (TagLib::DSDIFF::File::isSupported(stream))
-            file = std::make_unique<TagLib::DSDIFF::File>(stream, readAudioProperties, audioPropertiesStyle);
 #endif
 
         if (file && !file->isValid())
@@ -213,20 +213,33 @@ namespace lms::metadata::taglib::utils
         return file;
     }
 
-    std::unique_ptr<TagLib::File> parseFile(const std::filesystem::path& p, TagLib::AudioProperties::ReadStyle readStyle, ReadAudioProperties readAudioProperties)
+    std::unique_ptr<TagLib::File> parseFile(const std::filesystem::path& p, ParserOptions::AudioPropertiesReadStyle readStyle)
     {
         LMS_SCOPED_TRACE_DETAILED("MetaData", "TagLibParseFile");
 
+        const ::TagLib::AudioProperties::ReadStyle tagLibReadStyle{ readStyleToTagLibReadStyle(readStyle) };
         TagLib::FileStream fileStream{ createFileStream(p) };
-        std::unique_ptr<TagLib::File> file{ parseFileByExtension(&fileStream, p.extension(), readStyle, readAudioProperties.value()) };
+        std::unique_ptr<TagLib::File> file{ parseFileByExtension(&fileStream, p.extension(), tagLibReadStyle) };
         if (!file)
         {
             LMS_LOG(METADATA, DEBUG, "File " << p << ": failed to parse by extension");
-            file = parseFileByContent(&fileStream, readStyle, readAudioProperties.value());
+            file = parseFileByContent(&fileStream, tagLibReadStyle);
             if (!file)
                 LMS_LOG(METADATA, DEBUG, "File " << p << ": failed to parse by content");
         }
 
+        if (!file)
+        {
+            LMS_LOG(METADATA, ERROR, "File " << p << ": parsing failed");
+            throw AudioFileParsingException{ p, "Parsing failed" };
+        }
+
+        if (!file->audioProperties())
+        {
+            LMS_LOG(METADATA, ERROR, "File " << p << ": no audio properties");
+            throw AudioFileNoAudioPropertiesException{ p };
+        }
+
         return file;
     }
-} // namespace lms::metadata::taglib::utils
+} // namespace lms::audio::taglib::utils

src/libs/audio/impl/taglib/Utils.hpp

@@ -19,19 +19,16 @@
 
 #pragma once
 
-#include "IImageReader.hpp"
+#include <filesystem>
+#include <memory>
+#include <span>
 
 #include <taglib/tfile.h>
 
-namespace lms::metadata::taglib
+#include "audio/IAudioFileInfo.hpp"
+
+namespace lms::audio::taglib::utils
 {
-    class TagLibImageReader : public IImageReader
-    {
-    public:
-        TagLibImageReader(const std::filesystem::path& p);
-
-        void visitImages(ImageVisitor visitor) const override;
-
-        std::unique_ptr<TagLib::File> _file;
-    };
-} // namespace lms::metadata::taglib
+    std::span<const std::filesystem::path> getSupportedExtensions();
+    std::unique_ptr<::TagLib::File> parseFile(const std::filesystem::path& p, ParserOptions::AudioPropertiesReadStyle readStyle);
+} // namespace lms::audio::taglib::utils

src/libs/audio/include/audio/AudioTypes.hpp

@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2025 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <chrono>
+#include <optional>
+
+#include "core/LiteralString.hpp"
+
+namespace lms::audio
+{
+    enum class ContainerType
+    {
+        AIFF,
+        APE, // Monkey's Audio
+        ASF, // Advanced Systems Format
+        DSF,
+        FLAC,
+        MP4,
+        MPC, // Musepack
+        MPEG,
+        Ogg,
+        Shorten,
+        TrueAudio,
+        WAV,
+        WavPack,
+    };
+
+    core::LiteralString containerTypeToString(ContainerType type);
+
+    enum class CodecType
+    {
+        AAC,
+        AC3,
+        ALAC, // Apple Lossless Audio Codec (ALAC)
+        APE,  // Monkey's Audio
+        EAC3, // Enhanced AC-3
+        DSD,  // DSD
+        FLAC, // Flac
+        MP3,
+        MP4ALS, // MPEG-4 Audio Lossless Coding
+        MPC7,   // Musepack
+        MPC8,   // Musepack
+        Opus,   // Opus
+        PCM,
+        Shorten, // Shorten (shn)
+        TrueAudio,
+        Vorbis,
+        WavPack, // WavPack
+        WMA1,
+        WMA2,
+        WMA9Pro,
+        WMA9Lossless,
+    };
+
+    core::LiteralString codecTypeToString(CodecType type);
+
+    struct AudioProperties
+    {
+        std::optional<ContainerType> container;
+        std::optional<CodecType> codec;
+        std::chrono::milliseconds duration{};
+        std::optional<unsigned> bitrate;
+        std::optional<unsigned> bitsPerSample;
+        std::optional<unsigned> channelCount;
+        std::optional<unsigned> sampleRate;
+    };
+} // namespace lms::audio

src/libs/audio/include/audio/Exception.hpp

@@ -21,11 +21,11 @@
 
 #include "core/Exception.hpp"
 
-namespace lms::av
+namespace lms::audio
 {
     class Exception : public core::LmsException
     {
     public:
         using LmsException::LmsException;
     };
-} // namespace lms::av
+} // namespace lms::audio

src/libs/audio/include/audio/IAudioFileInfo.hpp

@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2015 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <filesystem>
+#include <span>
+
+#include "audio/Exception.hpp"
+
+namespace lms::audio
+{
+    class AudioProperties;
+    class IImageReader;
+    class ITagReader;
+
+    class IAudioFileInfo
+    {
+    public:
+        virtual ~IAudioFileInfo() = default;
+
+        virtual const AudioProperties& getAudioProperties() const = 0;
+        virtual const IImageReader& getImageReader() const = 0;
+        virtual const ITagReader& getTagReader() const = 0;
+    };
+
+    class AudioFileParsingException : public Exception
+    {
+    public:
+        AudioFileParsingException(const std::filesystem::path& path, std::string_view error = "")
+            : Exception{ error }, _path{ path } {}
+
+        const std::filesystem::path& getPath() const { return _path; }
+
+    private:
+        std::filesystem::path _path;
+    };
+
+    class AudioFileNoAudioPropertiesException : public AudioFileParsingException
+    {
+    public:
+        using AudioFileParsingException::AudioFileParsingException;
+    };
+
+    class IOException : public Exception
+    {
+    public:
+        IOException(std::string_view message, std::error_code err)
+            : Exception{ std::string{ message } + ": " + err.message() }
+            , _err{ err }
+        {
+        }
+
+        std::error_code getErrorCode() const { return _err; }
+
+    private:
+        std::error_code _err;
+    };
+
+    struct ParserOptions
+    {
+        enum class Parser
+        {
+            TagLib,
+            FFmpeg,
+        };
+
+        enum class AudioPropertiesReadStyle
+        {
+            Fast,
+            Average,
+            Accurate,
+        };
+
+        Parser parser{ Parser::TagLib };
+        AudioPropertiesReadStyle readStyle{ AudioPropertiesReadStyle::Average };
+        bool enableExtraDebugLogs{};
+    };
+    std::unique_ptr<IAudioFileInfo> parseAudioFile(const std::filesystem::path& p, const ParserOptions& parserOptions = ParserOptions{});
+
+    std::span<const std::filesystem::path> getSupportedExtensions(ParserOptions::ParserOptions::Parser parser);
+} // namespace lms::audio

src/libs/audio/include/audio/IImageReader.hpp

@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2025 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <functional>
+#include <span>
+#include <string>
+
+#include "core/LiteralString.hpp"
+
+namespace lms::audio
+{
+    struct Image
+    {
+        // See TagLib types (based on ID3v2 APIC types)
+        enum class Type
+        {
+            // No information
+            Unknown,
+            // A type not enumerated below
+            Other,
+            // 32x32 PNG image that should be used as the file icon
+            FileIcon,
+            // File icon of a different size or format
+            OtherFileIcon,
+            // Front cover image of the album
+            FrontCover,
+            // Back cover image of the album
+            BackCover,
+            // Inside leaflet page of the album
+            LeafletPage,
+            // Image from the album itself
+            Media,
+            // Picture of the lead artist or soloist
+            LeadArtist,
+            // Picture of the artist or performer
+            Artist,
+            // Picture of the conductor
+            Conductor,
+            // Picture of the band or orchestra
+            Band,
+            // Picture of the composer
+            Composer,
+            // Picture of the lyricist or text writer
+            Lyricist,
+            // Picture of the recording location or studio
+            RecordingLocation,
+            // Picture of the artists during recording
+            DuringRecording,
+            // Picture of the artists during performance
+            DuringPerformance,
+            // Picture from a movie or video related to the track
+            MovieScreenCapture,
+            // Picture of a large, coloured fish
+            ColouredFish,
+            // Illustration related to the track
+            Illustration,
+            // Logo of the band or performer
+            BandLogo,
+            // Logo of the publisher (record company)
+            PublisherLogo
+        };
+
+        Type type{ Type::Unknown };
+        std::string mimeType{ "application/octet-stream" };
+        std::string description;
+        std::span<const std::byte> data;
+    };
+
+    core::LiteralString imageTypeToString(Image::Type type);
+
+    class IImageReader
+    {
+    public:
+        virtual ~IImageReader() = default;
+
+        using ImageVisitor = std::function<void(const Image& image)>;
+        virtual void visitImages(const ImageVisitor& visitor) const = 0;
+    };
+} // namespace lms::audio

src/libs/audio/include/audio/ITagReader.hpp

@@ -20,10 +20,11 @@
 #pragma once
 
 #include <functional>
+#include <string_view>
 
-#include "metadata/Types.hpp"
+#include "core/LiteralString.hpp"
 
-namespace lms::metadata
+namespace lms::audio
 {
     // prefer using picard internal names
     // see https://picard-docs.musicbrainz.org/en/appendices/tag_mapping.html
@@ -152,8 +153,12 @@ namespace lms::metadata
         Website,
         WorkTitle,
         Writer,
+
+        Count, // Special value used to count the number of tags
     };
 
+    core::LiteralString tagTypeToString(TagType type);
+
     class ITagReader
     {
     public:
@@ -168,7 +173,5 @@ namespace lms::metadata
 
         using LyricsVisitor = std::function<void(std::string_view language, std::string_view lyrics)>;
         virtual void visitLyricsTags(LyricsVisitor visitor) const = 0;
-
-        virtual const AudioProperties& getAudioProperties() const = 0;
     };
-} // namespace lms::metadata
+} // namespace lms::audio

src/libs/audio/include/audio/ITranscoder.hpp

@@ -20,37 +20,14 @@
 #pragma once
 
 #include <cstddef>
-#include <filesystem>
 #include <functional>
 #include <memory>
-#include <optional>
 #include <string_view>
 
-namespace lms::av
+#include "TranscodeTypes.hpp"
+
+namespace lms::audio
 {
-    struct InputParameters
-    {
-        std::filesystem::path file;             // Path to the input file
-        std::chrono::milliseconds offset{};     // Offset in the input file to start transcoding from
-        std::optional<std::size_t> streamIndex; // Index of the stream to be transcoded (select "best" audio stream if not set)
-    };
-
-    enum class OutputFormat
-    {
-        MP3,
-        OGG_OPUS,
-        MATROSKA_OPUS,
-        OGG_VORBIS,
-        WEBM_VORBIS,
-    };
-
-    struct OutputParameters
-    {
-        OutputFormat format;
-        std::size_t bitrate{ 128'000 };
-        bool stripMetadata{ true };
-    };
-
     class ITranscoder
     {
     public:
@@ -62,10 +39,10 @@ namespace lms::av
         virtual std::size_t readSome(std::byte* buffer, std::size_t bufferSize) = 0;
 
         virtual std::string_view getOutputMimeType() const = 0;
-        virtual const OutputParameters& getOutputParameters() const = 0;
+        virtual const TranscodeOutputParameters& getOutputParameters() const = 0;
 
         virtual bool finished() const = 0;
     };
 
-    std::unique_ptr<ITranscoder> createTranscoder(const InputParameters& inputParameters, const OutputParameters& outputParameters);
-} // namespace lms::av
+    std::unique_ptr<ITranscoder> createTranscoder(const TranscodeParameters& parameters);
+} // namespace lms::audio

src/libs/audio/include/audio/TranscodeTypes.hpp

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2025 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <chrono>
+#include <filesystem>
+#include <optional>
+
+// #include "AudioTypes.hpp"
+
+namespace lms::audio
+{
+    // TODO deprecated
+    enum class OutputFormat
+    {
+        MP3,
+        OGG_OPUS,
+        MATROSKA_OPUS,
+        OGG_VORBIS,
+        WEBM_VORBIS,
+    };
+
+    struct TranscodeInputParameters
+    {
+        std::filesystem::path filePath;
+        std::chrono::milliseconds duration{}; // Duration of the audio file
+        std::chrono::milliseconds offset{};   // Offset in the audio file to start transcoding from
+    };
+
+    struct TranscodeOutputParameters
+    {
+        std::optional<OutputFormat> format;
+        std::optional<unsigned> bitrate;
+        std::optional<unsigned> bitsPerSample;
+        std::optional<unsigned> channelCount;
+        std::optional<unsigned> sampleRate;
+        bool stripMetadata{ true };
+    };
+
+    struct TranscodeParameters
+    {
+        TranscodeInputParameters inputParameters;
+        TranscodeOutputParameters outputParameters;
+    };
+} // namespace lms::audio

src/libs/av/CMakeLists.txt

@@ -1,26 +0,0 @@
-pkg_check_modules(LIBAV IMPORTED_TARGET libavcodec libavutil libavformat)
-
-add_library(lmsav STATIC
-	impl/AudioFile.cpp
-	impl/Transcoder.cpp
-	)
-
-target_include_directories(lmsav INTERFACE
-	include
-	)
-
-target_include_directories(lmsav PRIVATE
-	include
-	${AVCODEC_INCLUDE_DIR}
-	${AVFORMAT_INCLUDE_DIR}
-	${AVUTIL_INCLUDE_DIR}
-	)
-
-target_link_libraries(lmsav PUBLIC
-	lmscore
-	std::filesystem
-	)
-
-target_link_libraries(lmsav PRIVATE
-	PkgConfig::LIBAV
-	)

src/libs/av/impl/AudioFile.hpp

@@ -1,51 +0,0 @@
-/*
- * Copyright (C) 2020 Emeric Poupon
- *
- * This file is part of LMS.
- *
- * LMS is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * LMS is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include "av/IAudioFile.hpp"
-
-struct AVFormatContext;
-
-namespace lms::av
-{
-    class AudioFile final : public IAudioFile
-    {
-    public:
-        AudioFile(const std::filesystem::path& p);
-        ~AudioFile() override;
-        AudioFile(const AudioFile&) = delete;
-        AudioFile& operator=(const AudioFile&) = delete;
-
-        const std::filesystem::path& getPath() const override;
-        ContainerInfo getContainerInfo() const override;
-        MetadataMap getMetaData() const override;
-        std::vector<StreamInfo> getStreamInfo() const override;
-        std::optional<StreamInfo> getBestStreamInfo() const override;
-        std::optional<std::size_t> getBestStreamIndex() const override;
-        bool hasAttachedPictures() const override;
-        void visitAttachedPictures(std::function<void(const Picture&, const MetadataMap&)> func) const override;
-
-    private:
-        std::optional<StreamInfo> getStreamInfo(std::size_t streamIndex) const;
-
-        const std::filesystem::path _p;
-        AVFormatContext* _context{};
-    };
-} // namespace lms::av

src/libs/av/include/av/IAudioFile.hpp

@@ -1,104 +0,0 @@
-/*
- * Copyright (C) 2015 Emeric Poupon
- *
- * This file is part of LMS.
- *
- * LMS is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * LMS is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include <chrono>
-#include <filesystem>
-#include <functional>
-#include <optional>
-#include <span>
-#include <string>
-#include <string_view>
-#include <unordered_map>
-#include <vector>
-
-namespace lms::av
-{
-    // List should be sync with the codecs shipped in the lms's docker version
-    enum class DecodingCodec
-    {
-        UNKNOWN,
-        MP3,
-        AAC,
-        AC3,
-        VORBIS,
-        WMAV1,
-        WMAV2,
-        FLAC,      // Flac
-        ALAC,      // Apple Lossless Audio Codec (ALAC)
-        WAVPACK,   // WavPack
-        MUSEPACK7, // Musepack
-        MUSEPACK8,
-        APE,             // Monkey's Audio
-        EAC3,            // Enhanced AC-3
-        MP4ALS,          // MPEG-4 Audio Lossless Coding
-        OPUS,            // Opus
-        SHORTEN,         // Shorten (shn)
-        DSD_LSBF,        // DSD (Direct Stream Digital), least significant bit first
-        DSD_LSBF_PLANAR, // DSD (Direct Stream Digital), least significant bit first, planar
-        DSD_MSBF,        // DSD (Direct Stream Digital), most significant bit first
-        DSD_MSBF_PLANAR, // DSD (Direct Stream Digital), most significant bit first, planar
-        // TODO add PCM codecs
-    };
-
-    struct Picture
-    {
-        std::string mimeType;
-        std::span<const std::byte> data; // valid as long as IAudioFile exists
-    };
-
-    struct ContainerInfo
-    {
-        std::size_t bitrate{};
-        std::string name;
-        std::chrono::milliseconds duration{};
-    };
-
-    struct StreamInfo
-    {
-        size_t index{};
-        std::size_t bitrate{};
-        std::size_t bitsPerSample{};
-        std::size_t channelCount{};
-        std::size_t sampleRate{};
-        DecodingCodec codec;
-        std::string codecName;
-    };
-
-    class IAudioFile
-    {
-    public:
-        virtual ~IAudioFile() = default;
-
-        // Keys are forced to be in upper case
-        using MetadataMap = std::unordered_map<std::string, std::string>;
-
-        virtual const std::filesystem::path& getPath() const = 0;
-        virtual ContainerInfo getContainerInfo() const = 0;
-        virtual MetadataMap getMetaData() const = 0;
-        virtual std::vector<StreamInfo> getStreamInfo() const = 0;
-        virtual std::optional<StreamInfo> getBestStreamInfo() const = 0;   // none if failure/unknown
-        virtual std::optional<std::size_t> getBestStreamIndex() const = 0; // none if failure/unknown
-        virtual bool hasAttachedPictures() const = 0;
-        virtual void visitAttachedPictures(std::function<void(const Picture&, const MetadataMap& metadata)> func) const = 0;
-    };
-
-    std::unique_ptr<IAudioFile> parseAudioFile(const std::filesystem::path& p);
-} // namespace lms::av

src/libs/core/impl/Logger.cpp

@@ -37,10 +37,10 @@ namespace lms::core::logging
         {
         case Module::API_SUBSONIC:
             return "API_SUBSONIC";
+        case Module::AUDIO:
+            return "AUDIO";
         case Module::AUTH:
             return "AUTH";
-        case Module::AV:
-            return "AV";
         case Module::CHILDPROCESS:
             return "CHILDPROC";
         case Module::COVER:

src/libs/core/include/core/ILogger.hpp

@@ -40,8 +40,8 @@ namespace lms::core::logging
     enum class Module
     {
         API_SUBSONIC,
+        AUDIO,
         AUTH,
-        AV,
         CHILDPROCESS,
         COVER,
         DB,

src/libs/metadata/CMakeLists.txt

@@ -1,43 +0,0 @@
-pkg_check_modules(Taglib REQUIRED IMPORTED_TARGET taglib)
-
-if(BUILD_TESTING)
-	add_subdirectory(test)
-endif()
-
-if (BUILD_BENCHMARKS)
-	add_subdirectory(bench)
-endif()
-
-add_library(lmsmetadata STATIC
-	impl/ArtistInfo.cpp
-	impl/AudioFileParser.cpp
-	impl/avformat/AvFormatImageReader.cpp
-	impl/avformat/AvFormatTagReader.cpp
-	impl/avformat/Utils.cpp
-	impl/Lyrics.cpp
-	impl/PlayList.cpp
-	impl/taglib/TagLibImageReader.cpp
-	impl/taglib/TagLibTagReader.cpp
-	impl/taglib/Utils.cpp
-	impl/Utils.cpp
-	)
-
-target_include_directories(lmsmetadata INTERFACE
-	include
-	)
-
-target_include_directories(lmsmetadata PRIVATE
-	include
-	impl
-	)
-
-target_link_libraries(lmsmetadata PRIVATE
-	lmsav
-	PkgConfig::Taglib
-	pugixml::pugixml
-	)
-
-target_link_libraries(lmsmetadata PUBLIC
-	lmscore
-	std::filesystem
-	)

src/libs/metadata/bench/CMakeLists.txt

@@ -1,15 +0,0 @@
-
-add_executable(bench-metadata
-	LyricsBench.cpp
-	Metadata.cpp
-	)
-
-target_include_directories(bench-metadata PRIVATE
-	../impl
-	../test
-	)
-
-target_link_libraries(bench-metadata PRIVATE
-	lmsmetadata
-	benchmark
-	)

src/libs/metadata/impl/AudioFileParser.hpp

@@ -1,55 +0,0 @@
-/*
- * Copyright (C) 2018 Emeric Poupon
- *
- * This file is part of LMS.
- *
- * LMS is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * LMS is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include <optional>
-
-#include "metadata/IAudioFileParser.hpp"
-
-namespace lms::metadata
-{
-    class IImageReader;
-    class ITagReader;
-
-    class AudioFileParser : public IAudioFileParser
-    {
-    public:
-        AudioFileParser(const AudioFileParserParameters& params = {});
-        ~AudioFileParser() override = default;
-        AudioFileParser(const AudioFileParser&) = delete;
-        AudioFileParser& operator=(const AudioFileParser&) = delete;
-
-    protected:
-        std::unique_ptr<Track> parseMetaData(const std::filesystem::path& p) const override;
-        std::unique_ptr<Track> parseMetaData(const ITagReader& reader) const;
-        static void parseImages(const IImageReader& reader, ImageVisitor visitor);
-
-    private:
-        void parseImages(const std::filesystem::path& p, ImageVisitor visitor) const override;
-        std::span<const std::filesystem::path> getSupportedExtensions() const override;
-
-        void processTags(const ITagReader& reader, Track& track) const;
-
-        std::optional<Medium> getMedium(const ITagReader& tagReader) const;
-        std::optional<Release> getRelease(const ITagReader& tagReader) const;
-
-        const AudioFileParserParameters _params;
-    };
-} // namespace lms::metadata

src/libs/metadata/impl/taglib/Utils.hpp

@@ -1,39 +0,0 @@
-/*
- * Copyright (C) 2025 Emeric Poupon
- *
- * This file is part of LMS.
- *
- * LMS is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * LMS is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include <filesystem>
-#include <memory>
-#include <span>
-
-#include <taglib/audioproperties.h>
-#include <taglib/tfile.h>
-
-#include "core/TaggedType.hpp"
-#include "metadata/Types.hpp"
-
-namespace lms::metadata::taglib::utils
-{
-    std::span<const std::filesystem::path> getSupportedExtensions();
-    TagLib::AudioProperties::ReadStyle readStyleToTagLibReadStyle(ParserReadStyle readStyle);
-
-    using ReadAudioProperties = core::TaggedBool<struct ReadAudioPropertiesTag>;
-    std::unique_ptr<TagLib::File> parseFile(const std::filesystem::path& p, TagLib::AudioProperties::ReadStyle readStyle, ReadAudioProperties readAudioProperties);
-} // namespace lms::metadata::taglib::utils

src/libs/metadata/include/metadata/Exception.hpp

@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2024 Emeric Poupon
- *
- * This file is part of LMS.
- *
- * LMS is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * LMS is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include <system_error>
-
-#include "core/Exception.hpp"
-
-namespace lms::metadata
-{
-    class Exception : public core::LmsException
-    {
-    public:
-        using LmsException::LmsException;
-    };
-
-    class IOException : public Exception
-    {
-    public:
-        IOException(std::string_view message, std::error_code err)
-            : Exception{ std::string{ message } + ": " + err.message() }
-            , _err{ err }
-        {
-        }
-
-        std::error_code getErrorCode() const { return _err; }
-
-    private:
-        std::error_code _err;
-    };
-
-    class AudioFileParsingException : public Exception
-    {
-    public:
-        using Exception::Exception;
-    };
-
-    class AudioFileNoAudioPropertiesException : public AudioFileParsingException
-    {
-    public:
-        using AudioFileParsingException::AudioFileParsingException;
-    };
-
-} // namespace lms::metadata

src/libs/metadata/include/metadata/IAudioFileParser.hpp

@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2018 Emeric Poupon
- *
- * This file is part of LMS.
- *
- * LMS is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * LMS is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include <filesystem>
-#include <functional>
-#include <memory>
-#include <span>
-
-#include "metadata/Exception.hpp"
-#include "metadata/Types.hpp"
-
-namespace lms::metadata
-{
-    class IAudioFileParser
-    {
-    public:
-        virtual ~IAudioFileParser() = default;
-
-        virtual std::unique_ptr<Track> parseMetaData(const std::filesystem::path& p) const = 0;
-
-        using ImageVisitor = std::function<void(const Image&)>;
-        virtual void parseImages(const std::filesystem::path& p, ImageVisitor visitor) const = 0;
-
-        virtual std::span<const std::filesystem::path> getSupportedExtensions() const = 0;
-    };
-
-    std::unique_ptr<IAudioFileParser> createAudioFileParser(const AudioFileParserParameters& params);
-} // namespace lms::metadata

src/libs/metadata/test/AudioFileParser.cpp

@@ -1,933 +0,0 @@
-/*
- * Copyright (C) 2024 Emeric Poupon
- *
- * This file is part of LMS.
- *
- * LMS is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * LMS is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <vector>
-
-#include <gtest/gtest.h>
-
-#include <Wt/WTime.h>
-
-#include "AudioFileParser.hpp"
-#include "TestTagReader.hpp"
-
-namespace lms::metadata::tests
-{
-    class TestAudioFileParser : public AudioFileParser
-    {
-    public:
-        using AudioFileParser::AudioFileParser;
-        using AudioFileParser::parseMetaData;
-    };
-
-    TEST(AudioFileParser, generalTest)
-    {
-        AudioFileParserParameters params;
-        params.userExtraTags = { "MY_AWESOME_TAG_A", "MY_AWESOME_TAG_B", "MY_AWESOME_MISSING_TAG" };
-
-        TestAudioFileParser parser{ params };
-        std::unique_ptr<ITagReader> testTags{ createDefaultPopulatedTestTagReader() };
-
-        const std::unique_ptr<Track> track{ parser.parseMetaData(*testTags) };
-
-        // Audio properties
-        {
-            const AudioProperties& audioProperties{ testTags->getAudioProperties() };
-            EXPECT_EQ(track->audioProperties.bitrate, audioProperties.bitrate);
-            EXPECT_EQ(track->audioProperties.bitsPerSample, audioProperties.bitsPerSample);
-            EXPECT_EQ(track->audioProperties.channelCount, audioProperties.channelCount);
-            EXPECT_EQ(track->audioProperties.duration, audioProperties.duration);
-            EXPECT_EQ(track->audioProperties.sampleRate, audioProperties.sampleRate);
-        }
-
-        EXPECT_EQ(track->acoustID, core::UUID::fromString("e987a441-e134-4960-8019-274eddacc418"));
-        ASSERT_TRUE(track->advisory.has_value());
-        EXPECT_EQ(track->advisory.value(), Track::Advisory::Clean);
-        EXPECT_EQ(track->artistDisplayName, "MyArtist1 & MyArtist2");
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "MyArtist1");
-        EXPECT_EQ(track->artists[0].sortName, "MyArtists1SortName");
-        EXPECT_EQ(track->artists[0].mbid, core::UUID::fromString("9d2e0c8c-8c5e-4372-a061-590955eaeaae"));
-        EXPECT_EQ(track->artists[1].name, "MyArtist2");
-        EXPECT_EQ(track->artists[1].sortName, "MyArtists2SortName");
-        EXPECT_EQ(track->artists[1].mbid, core::UUID::fromString("5e2cf87f-c8d7-4504-8a86-954dc0840229"));
-        ASSERT_EQ(track->comments.size(), 2);
-        EXPECT_EQ(track->comments[0], "Comment1");
-        EXPECT_EQ(track->comments[1], "Comment2");
-        ASSERT_EQ(track->composerArtists.size(), 2);
-        EXPECT_EQ(track->composerArtists[0].name, "MyComposer1");
-        EXPECT_EQ(track->composerArtists[0].sortName, "MyComposerSortOrder1");
-        EXPECT_EQ(track->composerArtists[1].name, "MyComposer2");
-        EXPECT_EQ(track->composerArtists[1].sortName, "MyComposerSortOrder2");
-        ASSERT_EQ(track->conductorArtists.size(), 2);
-        EXPECT_EQ(track->conductorArtists[0].name, "MyConductor1");
-        EXPECT_EQ(track->conductorArtists[1].name, "MyConductor2");
-        EXPECT_EQ(track->copyright, "MyCopyright");
-        EXPECT_EQ(track->copyrightURL, "MyCopyrightURL");
-        ASSERT_TRUE(track->date.isValid());
-        EXPECT_EQ(track->date.getYear(), 2020);
-        EXPECT_EQ(track->date.getMonth(), 3);
-        EXPECT_EQ(track->date.getDay(), 4);
-        ASSERT_EQ(track->genres.size(), 2);
-        EXPECT_EQ(track->genres[0], "Genre1");
-        EXPECT_EQ(track->genres[1], "Genre2");
-        ASSERT_EQ(track->groupings.size(), 2);
-        EXPECT_EQ(track->groupings[0], "Grouping1");
-        EXPECT_EQ(track->groupings[1], "Grouping2");
-        ASSERT_EQ(track->languages.size(), 2);
-        EXPECT_EQ(track->languages[0], "Language1");
-        EXPECT_EQ(track->languages[1], "Language2");
-        ASSERT_EQ(track->lyricistArtists.size(), 2);
-        EXPECT_EQ(track->lyricistArtists[0].name, "MyLyricist1");
-        EXPECT_EQ(track->lyricistArtists[1].name, "MyLyricist2");
-        ASSERT_EQ(track->lyrics.size(), 1);
-        EXPECT_EQ(track->lyrics.front().language, "eng");
-        ASSERT_EQ(track->lyrics.front().synchronizedLines.size(), 2);
-        ASSERT_TRUE(track->lyrics.front().synchronizedLines.contains(std::chrono::milliseconds{ 0 }));
-        EXPECT_EQ(track->lyrics.front().synchronizedLines.find(std::chrono::milliseconds{ 0 })->second, "First line");
-        ASSERT_TRUE(track->lyrics.front().synchronizedLines.contains(std::chrono::milliseconds{ 1000 }));
-        EXPECT_EQ(track->lyrics.front().synchronizedLines.find(std::chrono::milliseconds{ 1000 })->second, "Second line");
-        ASSERT_TRUE(track->mbid.has_value());
-        EXPECT_EQ(track->mbid.value(), core::UUID::fromString("0afb190a-6735-46df-a16d-199f48206e4a"));
-        ASSERT_EQ(track->mixerArtists.size(), 2);
-        EXPECT_EQ(track->mixerArtists[0].name, "MyMixer1");
-        EXPECT_EQ(track->mixerArtists[1].name, "MyMixer2");
-        ASSERT_EQ(track->moods.size(), 2);
-        EXPECT_EQ(track->moods[0], "Mood1");
-        EXPECT_EQ(track->moods[1], "Mood2");
-        ASSERT_TRUE(track->originalDate.isValid());
-        EXPECT_EQ(track->originalDate.getYear(), 2019);
-        EXPECT_EQ(track->originalDate.getMonth(), 2);
-        EXPECT_EQ(track->originalDate.getDay(), 3);
-        ASSERT_TRUE(track->originalYear.has_value());
-        EXPECT_EQ(track->originalYear.value(), 2019);
-        ASSERT_TRUE(track->performerArtists.contains("Rolea"));
-        ASSERT_EQ(track->performerArtists["Rolea"].size(), 2);
-        EXPECT_EQ(track->performerArtists["Rolea"][0].name, "MyPerformer1ForRoleA");
-        EXPECT_EQ(track->performerArtists["Rolea"][1].name, "MyPerformer2ForRoleA");
-        ASSERT_EQ(track->performerArtists["Roleb"].size(), 2);
-        EXPECT_EQ(track->performerArtists["Roleb"][0].name, "MyPerformer1ForRoleB");
-        EXPECT_EQ(track->performerArtists["Roleb"][1].name, "MyPerformer2ForRoleB");
-        ASSERT_TRUE(track->position.has_value());
-        EXPECT_EQ(track->position.value(), 7);
-        ASSERT_EQ(track->producerArtists.size(), 2);
-        EXPECT_EQ(track->producerArtists[0].name, "MyProducer1");
-        EXPECT_EQ(track->producerArtists[1].name, "MyProducer2");
-        ASSERT_TRUE(track->recordingMBID.has_value());
-        EXPECT_EQ(track->recordingMBID.value(), core::UUID::fromString("bd3fc666-89de-4ac8-93f6-2dbf028ad8d5"));
-        ASSERT_TRUE(track->replayGain.has_value());
-        EXPECT_FLOAT_EQ(track->replayGain.value(), -0.33);
-        ASSERT_EQ(track->remixerArtists.size(), 2);
-        EXPECT_EQ(track->remixerArtists[0].name, "MyRemixer1");
-        EXPECT_EQ(track->remixerArtists[1].name, "MyRemixer2");
-        EXPECT_EQ(track->title, "MyTitle");
-        ASSERT_EQ(track->userExtraTags["MY_AWESOME_TAG_A"].size(), 2);
-        EXPECT_EQ(track->userExtraTags["MY_AWESOME_TAG_A"][0], "MyTagValue1ForTagA");
-        EXPECT_EQ(track->userExtraTags["MY_AWESOME_TAG_A"][1], "MyTagValue2ForTagA");
-        ASSERT_EQ(track->userExtraTags["MY_AWESOME_TAG_B"].size(), 2);
-        EXPECT_EQ(track->userExtraTags["MY_AWESOME_TAG_B"][0], "MyTagValue1ForTagB");
-        EXPECT_EQ(track->userExtraTags["MY_AWESOME_TAG_B"][1], "MyTagValue2ForTagB");
-
-        // Medium
-        ASSERT_TRUE(track->medium.has_value());
-        EXPECT_EQ(track->medium->media, "CD");
-        EXPECT_EQ(track->medium->name, "MySubtitle");
-        ASSERT_TRUE(track->medium->position.has_value());
-        EXPECT_EQ(track->medium->position.value(), 2);
-        ASSERT_TRUE(track->medium->replayGain.has_value());
-        EXPECT_FLOAT_EQ(track->medium->replayGain.value(), -0.5);
-        ASSERT_TRUE(track->medium->trackCount.has_value());
-        EXPECT_EQ(track->medium->trackCount.value(), 12);
-
-        // Release
-        ASSERT_TRUE(track->medium->release.has_value());
-        const Release& release{ track->medium->release.value() };
-        EXPECT_EQ(release.artistDisplayName, "MyAlbumArtist1 & MyAlbumArtist2");
-        ASSERT_EQ(release.artists.size(), 2);
-        EXPECT_EQ(release.artists[0].name, "MyAlbumArtist1");
-        EXPECT_EQ(release.artists[0].sortName, "MyAlbumArtists1SortName");
-        EXPECT_EQ(release.artists[0].mbid, core::UUID::fromString("6fbf097c-1487-43e8-874b-50dd074398a7"));
-        EXPECT_EQ(release.artists[1].name, "MyAlbumArtist2");
-        EXPECT_EQ(release.artists[1].sortName, "MyAlbumArtists2SortName");
-        EXPECT_EQ(release.artists[1].mbid, core::UUID::fromString("5ed3d6b3-2aed-4a03-828c-3c4d4f7406e1"));
-        EXPECT_TRUE(release.isCompilation);
-        EXPECT_EQ(release.barcode, "MyBarcode");
-        ASSERT_EQ(release.labels.size(), 2);
-        EXPECT_EQ(release.labels[0], "Label1");
-        EXPECT_EQ(release.labels[1], "Label2");
-        ASSERT_TRUE(release.mbid.has_value());
-        EXPECT_EQ(release.mbid.value(), core::UUID::fromString("3fa39992-b786-4585-a70e-85d5cc15ef69"));
-        EXPECT_EQ(release.groupMBID.value(), core::UUID::fromString("5b1a5a44-8420-4426-9b86-d25dc8d04838"));
-        EXPECT_EQ(release.mediumCount, 3);
-        EXPECT_EQ(release.name, "MyAlbum");
-        EXPECT_EQ(release.sortName, "MyAlbumSortName");
-        EXPECT_EQ(release.comment, "MyAlbumComment");
-        ASSERT_EQ(release.countries.size(), 2);
-        EXPECT_EQ(release.countries[0], "MyCountry1");
-        EXPECT_EQ(release.countries[1], "MyCountry2");
-        {
-            std::vector<std::string> expectedReleaseTypes{ "Album", "Compilation" };
-            EXPECT_EQ(release.releaseTypes, expectedReleaseTypes);
-        }
-    }
-
-    TEST(AudioFileParser, trim)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Genre, { "Genre1 ", " Genre2", " Genre3 " } },
-            }
-        };
-
-        std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->genres.size(), 3);
-        EXPECT_EQ(track->genres[0], "Genre1");
-        EXPECT_EQ(track->genres[1], "Genre2");
-        EXPECT_EQ(track->genres[2], "Genre3");
-    }
-
-    TEST(AudioFileParser, customDelimiters)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Album, { "MyAlbum" } },
-                { TagType::AlbumArtist, { "AlbumArtist1 /  AlbumArtist2" } },
-                { TagType::Artist, { " Artist1 / Artist2 feat. Artist3  " } },
-                { TagType::Genre, { "Genre1 ;  Genre2" } },
-                { TagType::Language, { " Lang1/Lang2 / Lang3" } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.defaultTagDelimiters = { " ; ", "/" };
-        params.artistTagDelimiters = { " / ", " feat. " };
-        TestAudioFileParser parser{ params };
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 3);
-        EXPECT_EQ(track->artists[0].name, "Artist1");
-        EXPECT_EQ(track->artists[1].name, "Artist2");
-        EXPECT_EQ(track->artists[2].name, "Artist3");
-        EXPECT_EQ(track->artistDisplayName, "Artist1, Artist2, Artist3"); // reconstruct artist display name since a custom delimiter is hit
-        ASSERT_EQ(track->genres.size(), 2);
-        EXPECT_EQ(track->genres[0], "Genre1");
-        EXPECT_EQ(track->genres[1], "Genre2");
-        ASSERT_EQ(track->languages.size(), 3);
-        EXPECT_EQ(track->languages[0], "Lang1");
-        EXPECT_EQ(track->languages[1], "Lang2");
-        EXPECT_EQ(track->languages[2], "Lang3");
-
-        // Medium
-        ASSERT_TRUE(track->medium.has_value());
-
-        // Release
-        ASSERT_TRUE(track->medium->release.has_value());
-        EXPECT_EQ(track->medium->release->name, "MyAlbum");
-        ASSERT_EQ(track->medium->release->artists.size(), 2);
-        EXPECT_EQ(track->medium->release->artists[0].name, "AlbumArtist1");
-        EXPECT_EQ(track->medium->release->artists[1].name, "AlbumArtist2");
-        EXPECT_EQ(track->medium->release->artistDisplayName, "AlbumArtist1, AlbumArtist2");
-    }
-
-    TEST(AudioFileParser, customArtistDelimiters_whitelist)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Album, { "MyAlbum" } },
-                { TagType::AlbumArtist, { "  AC/DC " } },
-                { TagType::Artist, { "AC/DC  " } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { "/" };
-        params.artistsToNotSplit = { "AC/DC" };
-        TestAudioFileParser parser{ params };
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 1);
-        EXPECT_EQ(track->artists[0].name, "AC/DC");
-        EXPECT_EQ(track->artistDisplayName, "AC/DC");
-        ASSERT_TRUE(track->medium.has_value());
-        ASSERT_TRUE(track->medium->release.has_value());
-        EXPECT_EQ(track->medium->release->name, "MyAlbum");
-        ASSERT_EQ(track->medium->release->artists.size(), 1);
-        EXPECT_EQ(track->medium->release->artists[0].name, "AC/DC");
-        EXPECT_EQ(track->medium->release->artistDisplayName, "AC/DC");
-    }
-
-    TEST(AudioFileParser, customArtistDelimiters_whitelist_multi_artists)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "AC/DC and MyArtist" } },
-                { TagType::Artists, { "AC/DC", "MyArtist" } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { "/" };
-        params.artistsToNotSplit = { "  AC/DC " };
-        TestAudioFileParser parser{ params };
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "AC/DC");
-        EXPECT_EQ(track->artists[1].name, "MyArtist");
-        EXPECT_EQ(track->artistDisplayName, "AC/DC, MyArtist"); // Reconstructed since this use case is not handled
-    }
-
-    TEST(AudioFileParser, customArtistDelimiters_whitelist_multi_separators_first)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "AC/DC;MyArtist" } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { "/", ";" };
-        params.artistsToNotSplit = { "AC/DC" };
-        TestAudioFileParser parser{ params };
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "AC/DC");
-        EXPECT_EQ(track->artists[1].name, "MyArtist");
-        EXPECT_EQ(track->artistDisplayName, "AC/DC, MyArtist"); // Reconstructed since this use case is not handled
-    }
-
-    TEST(AudioFileParser, customArtistDelimiters_whitelist_multi_separators_middle)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { " MyArtist1; AC/DC  ; MyArtist2   " } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { "/", ";" };
-        params.artistsToNotSplit = { "AC/DC" };
-        TestAudioFileParser parser{ params };
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 3);
-        EXPECT_EQ(track->artists[0].name, "MyArtist1");
-        EXPECT_EQ(track->artists[1].name, "AC/DC");
-        EXPECT_EQ(track->artists[2].name, "MyArtist2");
-        EXPECT_EQ(track->artistDisplayName, "MyArtist1, AC/DC, MyArtist2"); // Reconstructed since this use case is not handled
-    }
-
-    TEST(AudioFileParser, customArtistDelimiters_whitelist_multi_separators_last)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "  AC/DC; MyArtist" } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { ";", "/" };
-        params.artistsToNotSplit = { "AC/DC" };
-        TestAudioFileParser parser{ params };
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "AC/DC");
-        EXPECT_EQ(track->artists[1].name, "MyArtist");
-        EXPECT_EQ(track->artistDisplayName, "AC/DC, MyArtist"); // Reconstructed since this use case is not handled
-    }
-
-    TEST(AudioFileParser, customArtistDelimiters_whitelist_longest_first)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "  AC/DC; MyArtist" } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { ";", "/" };
-        params.artistsToNotSplit = { "AC", "DC", "AC/DC" };
-        TestAudioFileParser parser{ params };
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "AC/DC");
-        EXPECT_EQ(track->artists[1].name, "MyArtist");
-        EXPECT_EQ(track->artistDisplayName, "AC/DC, MyArtist"); // Reconstructed since this use case is not handled
-    }
-
-    TEST(AudioFileParser, customArtistDelimiters_whitelist_partial_begin)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "  AC/DC; MyArtist" } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { "/" };
-        params.artistsToNotSplit = { "AC/DC" };
-        TestAudioFileParser parser{ params };
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 1);
-        EXPECT_EQ(track->artists[0].name, "AC/DC; MyArtist");
-        EXPECT_EQ(track->artistDisplayName, "AC/DC; MyArtist");
-    }
-
-    TEST(AudioFileParser, customArtistDelimiters_whitelist_partial_middle)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "  MyArtist1;  AC/DC ; MyArtist2" } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { "/" };
-        params.artistsToNotSplit = { "AC/DC" };
-        TestAudioFileParser parser{ params };
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 1);
-        EXPECT_EQ(track->artists[0].name, "MyArtist1;  AC/DC ; MyArtist2");
-        EXPECT_EQ(track->artistDisplayName, "MyArtist1;  AC/DC ; MyArtist2");
-    }
-
-    TEST(AudioFileParser, customArtistDelimiters_whitelist_partial_end)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "  MyArtist;  AC/DC " } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { "/" };
-        params.artistsToNotSplit = { "AC/DC" };
-        TestAudioFileParser parser{ params };
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 1);
-        EXPECT_EQ(track->artists[0].name, "MyArtist;  AC/DC");
-        EXPECT_EQ(track->artistDisplayName, "MyArtist;  AC/DC");
-    }
-
-    TEST(AudioFileParser, customDelimiters_foundInArtist)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "Artist1; Artist2" } },
-                { TagType::Artists, { "Artist1", "Artist2" } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { "; " };
-        TestAudioFileParser parser{ params };
-
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "Artist1");
-        EXPECT_EQ(track->artists[1].name, "Artist2");
-        EXPECT_EQ(track->artistDisplayName, "Artist1, Artist2"); // reconstruct the display name since we hit a custom delimiter in Artist
-    }
-
-    TEST(AudioFileParser, customDelimiters_foundInArtists)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "Artist1 feat. Artist2" } },
-                { TagType::Artists, { "Artist1; Artist2" } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { "; " };
-        TestAudioFileParser parser{ params };
-
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "Artist1");
-        EXPECT_EQ(track->artists[1].name, "Artist2");
-        EXPECT_EQ(track->artistDisplayName, "Artist1 feat. Artist2");
-    }
-
-    TEST(AudioFileParser, customDelimiters_notUsed)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "Artist1 & Artist2" } },
-                { TagType::Artists, { "Artist1", "Artist2" } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { "; " };
-        TestAudioFileParser parser{ params };
-
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "Artist1");
-        EXPECT_EQ(track->artists[1].name, "Artist2");
-        EXPECT_EQ(track->artistDisplayName, "Artist1 & Artist2");
-    }
-
-    TEST(AudioFileParser, customDelimiters_onlyInArtist)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "Artist1 & Artist2" } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { " & " };
-        TestAudioFileParser parser{ params };
-
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "Artist1");
-        EXPECT_EQ(track->artists[1].name, "Artist2");
-        EXPECT_EQ(track->artistDisplayName, "Artist1, Artist2"); // reconstructed since a custom delimiter was hit for parsing
-    }
-
-    TEST(AudioFileParser, customDelimitersUsedForArtists)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artists, { "Artist1 & Artist2" } },
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { " & " };
-        TestAudioFileParser parser{ params };
-
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "Artist1");
-        EXPECT_EQ(track->artists[1].name, "Artist2");
-        EXPECT_EQ(track->artistDisplayName, "Artist1, Artist2"); // reconstructed since a custom delimiter was hit for parsing
-    }
-
-    TEST(AudioFileParser, noArtistInArtist)
-    {
-        const TestTagReader testTags{
-            {
-                // nothing in Artist!
-            }
-        };
-
-        std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 0);
-        EXPECT_EQ(track->artistDisplayName, "");
-    }
-
-    TEST(AudioFileParser, singleArtistInArtists)
-    {
-        const TestTagReader testTags{
-            {
-                // nothing in Artist!
-                { TagType::Artists, { "Artist1" } },
-            }
-        };
-
-        std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 1);
-        EXPECT_EQ(track->artists[0].name, "Artist1");
-        EXPECT_EQ(track->artistDisplayName, "Artist1");
-    }
-
-    TEST(AudioFileParser, multipleArtistsInArtist)
-    {
-        const TestTagReader testTags{
-            {
-                // nothing in Artists!
-                { TagType::Artist, { "Artist1", "Artist2" } },
-            }
-        };
-
-        std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "Artist1");
-        EXPECT_EQ(track->artists[1].name, "Artist2");
-        EXPECT_EQ(track->artistDisplayName, "Artist1, Artist2"); // reconstruct artist display name since multiple entries are found
-    }
-
-    TEST(AudioFileParser, multipleArtistsInArtists)
-    {
-        const TestTagReader testTags{
-            {
-                // nothing in Artist!
-                { TagType::Artists, { "Artist1", "Artist2" } },
-            }
-        };
-
-        std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "Artist1");
-        EXPECT_EQ(track->artists[1].name, "Artist2");
-        EXPECT_EQ(track->artistDisplayName, "Artist1, Artist2"); // reconstruct artist display name since multiple entries are found and nothing is set in artist
-    }
-
-    TEST(AudioFileParser, multipleArtistsInArtistsWithEndDelimiter)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "Artist1 & (CV. Artist2)" } },
-                { TagType::Artists, { "Artist1", "Artist2" } },
-            }
-        };
-
-        std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "Artist1");
-        EXPECT_EQ(track->artists[1].name, "Artist2");
-        EXPECT_EQ(track->artistDisplayName, "Artist1 & (CV. Artist2)");
-    }
-
-    TEST(AudioFileParser, singleArtistInAlbumArtists)
-    {
-        const TestTagReader testTags{
-            {
-                // nothing in AlbumArtist!
-                { TagType::Album, { "MyAlbum" } },
-                { TagType::AlbumArtists, { "Artist1" } },
-            }
-        };
-
-        std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-        ASSERT_TRUE(track->medium);
-        ASSERT_TRUE(track->medium->release);
-        ASSERT_EQ(track->medium->release->artists.size(), 1);
-        EXPECT_EQ(track->medium->release->artists[0].name, "Artist1");
-        EXPECT_EQ(track->medium->release->artistDisplayName, "Artist1");
-    }
-
-    TEST(AudioFileParser, multipleArtistsInAlbumArtist)
-    {
-        const TestTagReader testTags{
-            {
-                // nothing in AlbumArtists!
-                { TagType::Album, { "MyAlbum" } },
-                { TagType::AlbumArtist, { "Artist1", "Artist2" } },
-            }
-        };
-
-        std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-        ASSERT_TRUE(track->medium);
-        ASSERT_TRUE(track->medium->release);
-        ASSERT_EQ(track->medium->release->artists.size(), 2);
-        EXPECT_EQ(track->medium->release->artists[0].name, "Artist1");
-        EXPECT_EQ(track->medium->release->artists[1].name, "Artist2");
-        EXPECT_EQ(track->medium->release->artistDisplayName, "Artist1, Artist2"); // reconstruct artist display name since multiple entries are found
-    }
-
-    TEST(AudioFileParser, multipleArtistsInAlbumArtists_displayName)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Album, { "MyAlbum" } },
-                { TagType::AlbumArtist, { "Artist1 & Artist2" } },
-                { TagType::AlbumArtists, { "Artist1", "Artist2" } },
-            }
-        };
-
-        std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-        ASSERT_TRUE(track->medium);
-        ASSERT_TRUE(track->medium->release);
-        ASSERT_EQ(track->medium->release->artists.size(), 2);
-        EXPECT_EQ(track->medium->release->artists[0].name, "Artist1");
-        EXPECT_EQ(track->medium->release->artists[1].name, "Artist2");
-        EXPECT_EQ(track->medium->release->artistDisplayName, "Artist1 & Artist2");
-    }
-
-    TEST(AudioFileParser, multipleArtistsInAlbumArtists)
-    {
-        const TestTagReader testTags{
-            {
-                // nothing in AlbumArtist!
-                { TagType::Album, { "MyAlbum" } },
-                { TagType::AlbumArtists, { "Artist1", "Artist2" } },
-            }
-        };
-
-        std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-        ASSERT_TRUE(track->medium);
-        ASSERT_TRUE(track->medium->release);
-        ASSERT_EQ(track->medium->release->artists.size(), 2);
-        EXPECT_EQ(track->medium->release->artists[0].name, "Artist1");
-        EXPECT_EQ(track->medium->release->artists[1].name, "Artist2");
-        EXPECT_EQ(track->medium->release->artistDisplayName, "Artist1, Artist2"); // reconstruct artist display name since multiple entries are found and nothing is set in artist
-    }
-
-    TEST(AudioFileParser, multipleArtistsInArtistsButNotAllMBIDs)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "Artist1 & Artist2" } },
-                { TagType::Artists, { "Artist1", "Artist2" } },
-                { TagType::MusicBrainzArtistID, { "dd2180a2-a350-4012-b332-5d66102fa2c6" } }, // only one => no mbid will be added
-            }
-        };
-
-        std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "Artist1");
-        EXPECT_EQ(track->artists[0].mbid, std::nullopt);
-        EXPECT_EQ(track->artists[1].name, "Artist2");
-        EXPECT_EQ(track->artists[1].mbid, std::nullopt);
-        EXPECT_EQ(track->artistDisplayName, "Artist1 & Artist2");
-    }
-
-    TEST(AudioFileParser, multipleArtistsInArtistsButNotAllMBIDs_customDelimiters)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Artist, { "Artist1 / Artist2" } },
-                { TagType::MusicBrainzArtistID, { "dd2180a2-a350-4012-b332-5d66102fa2c6" } }, // only one => no mbid will be added
-            }
-        };
-
-        AudioFileParserParameters params;
-        params.artistTagDelimiters = { " / " };
-        TestAudioFileParser parser{ params };
-        std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
-
-        ASSERT_EQ(track->artists.size(), 2);
-        EXPECT_EQ(track->artists[0].name, "Artist1");
-        EXPECT_EQ(track->artists[0].mbid, std::nullopt);
-        EXPECT_EQ(track->artists[1].name, "Artist2");
-        EXPECT_EQ(track->artists[1].mbid, std::nullopt);
-        EXPECT_EQ(track->artistDisplayName, "Artist1, Artist2"); // reconstruct the artist display name
-    }
-
-    TEST(AudioFileParser, release_sortNameFallback)
-    {
-        const TestTagReader testTags{
-            {
-                { TagType::Album, { "MyAlbum" } },
-                // No AlbumSortOrder
-            }
-        };
-        std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-        ASSERT_TRUE(track->medium.has_value());
-        ASSERT_TRUE(track->medium->release.has_value());
-        EXPECT_EQ(track->medium->release->sortName, "MyAlbum");
-    }
-
-    TEST(AudioFileParser, artist_sortNameFallback)
-    {
-        {
-            const TestTagReader testTags{
-                {
-                    { TagType::Artist, { "MyArtist" } },
-                    { TagType::ArtistSortOrder, { "MyArtistSortName" } },
-                    // No ArtistSortOrder
-                }
-            };
-            std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-            ASSERT_EQ(track->artists.size(), 1);
-            EXPECT_EQ(track->artists[0].sortName, "MyArtistSortName");
-        }
-
-        {
-            const TestTagReader testTags{
-                {
-                    { TagType::Artist, { "MyArtist" } },
-                    { TagType::ArtistsSortOrder, { "MyArtistSortName" } },
-                    // No ArtistSortOrder
-                }
-            };
-            std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-            ASSERT_EQ(track->artists.size(), 1);
-            EXPECT_EQ(track->artists[0].sortName, "MyArtistSortName");
-        }
-
-        {
-            const TestTagReader testTags{
-                {
-                    { TagType::Artist, { "MyArtist" } },
-                    { TagType::ArtistSortOrder, { "MyArtistSortNameNotUsed" } },
-                    { TagType::ArtistsSortOrder, { "MyArtistSortName" } },
-                    // No ArtistSortOrder
-                }
-            };
-            std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-            ASSERT_EQ(track->artists.size(), 1);
-            EXPECT_EQ(track->artists[0].sortName, "MyArtistSortName");
-        }
-    }
-
-    TEST(AudioFileParser, albumartist_sortNameFallback)
-    {
-        {
-            const TestTagReader testTags{
-                {
-                    { TagType::Album, { "MyAlbum" } },
-                    { TagType::AlbumArtist, { "MyArtist" } },
-                    { TagType::AlbumArtistSortOrder, { "MyArtistSortName" } },
-                    // No ArtistSortOrder
-                }
-            };
-            std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-            ASSERT_TRUE(track->medium.has_value());
-            ASSERT_TRUE(track->medium->release.has_value());
-
-            const auto& artists{ track->medium->release->artists };
-            ASSERT_EQ(artists.size(), 1);
-            EXPECT_EQ(artists[0].sortName, "MyArtistSortName");
-        }
-
-        {
-            const TestTagReader testTags{
-                {
-                    { TagType::Album, { "MyAlbum" } },
-                    { TagType::AlbumArtist, { "MyArtist" } },
-                    { TagType::AlbumArtistsSortOrder, { "MyArtistSortName" } },
-                    // No ArtistSortOrder
-                }
-            };
-            std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-            ASSERT_TRUE(track->medium.has_value());
-            ASSERT_TRUE(track->medium->release.has_value());
-
-            const auto& artists{ track->medium->release->artists };
-            ASSERT_EQ(artists.size(), 1);
-            EXPECT_EQ(artists[0].sortName, "MyArtistSortName");
-        }
-
-        {
-            const TestTagReader testTags{
-                {
-                    { TagType::Album, { "MyAlbum" } },
-
-                    { TagType::AlbumArtist, { "MyArtist" } },
-                    { TagType::AlbumArtistSortOrder, { "MyArtistSortNameNotUsed" } },
-                    { TagType::AlbumArtistsSortOrder, { "MyArtistSortName" } },
-                    // No ArtistSortOrder
-                }
-            };
-            std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-            ASSERT_TRUE(track->medium.has_value());
-            ASSERT_TRUE(track->medium->release.has_value());
-
-            const auto& artists{ track->medium->release->artists };
-            ASSERT_EQ(artists.size(), 1);
-            EXPECT_EQ(artists[0].sortName, "MyArtistSortName");
-        }
-    }
-
-    TEST(AudioFileParser, advisory)
-    {
-        auto doTest = [](std::string_view value, std::optional<Track::Advisory> expectedValue) {
-            const TestTagReader testTags{
-                {
-                    { TagType::Advisory, { value } },
-                }
-            };
-
-            AudioFileParser parser;
-            std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-            ASSERT_EQ(track->advisory.has_value(), expectedValue.has_value()) << "Value = '" << value << "'";
-            if (track->advisory.has_value())
-            {
-                EXPECT_EQ(track->advisory.value(), expectedValue);
-            }
-        };
-
-        doTest("0", Track::Advisory::Unknown);
-        doTest("1", Track::Advisory::Explicit);
-        doTest("4", Track::Advisory::Explicit);
-        doTest("2", Track::Advisory::Clean);
-        doTest("", std::nullopt);
-        doTest("3", std::nullopt);
-    }
-
-    TEST(AudioFileParser, encodingTime)
-    {
-        auto doTest = [](std::string_view value, core::PartialDateTime expectedValue) {
-            const TestTagReader testTags{
-                {
-                    { TagType::EncodingTime, { value } },
-                }
-            };
-
-            std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-            ASSERT_EQ(track->encodingTime, expectedValue) << "Value = '" << value << "'";
-        };
-
-        doTest("", core::PartialDateTime{});
-        doTest("foo", core::PartialDateTime{});
-        doTest("2020-01-03T09:08:11.075", core::PartialDateTime{ 2020, 01, 03, 9, 8, 11 });
-        doTest("2020-01-03", core::PartialDateTime{ 2020, 01, 03 });
-        doTest("2020/01/03", core::PartialDateTime{ 2020, 01, 03 });
-    }
-
-    TEST(AudioFileParser, date)
-    {
-        auto doTest = [](std::string_view value, core::PartialDateTime expectedValue) {
-            const TestTagReader testTags{
-                {
-                    { TagType::Date, { value } },
-                }
-            };
-
-            std::unique_ptr<Track> track{ TestAudioFileParser{}.parseMetaData(testTags) };
-
-            ASSERT_EQ(track->date, expectedValue) << "Value = '" << value << "'";
-        };
-
-        doTest("", core::PartialDateTime{});
-        doTest("foo", core::PartialDateTime{});
-        doTest("2020-01-03", core::PartialDateTime{ 2020, 01, 03 });
-        doTest("2020-01", core::PartialDateTime{ 2020, 1 });
-        doTest("2020", core::PartialDateTime{ 2020 });
-        doTest("2020/01/03", core::PartialDateTime{ 2020, 01, 03 });
-        doTest("2020/01", core::PartialDateTime{ 2020, 1 });
-        doTest("2020", core::PartialDateTime{ 2020 });
-    }
-} // namespace lms::metadata::tests

src/libs/metadata/test/CMakeLists.txt

@@ -1,24 +0,0 @@
-include(GoogleTest)
-
-add_executable(test-metadata
-	ArtistInfo.cpp
-	Lyrics.cpp
-	Metadata.cpp
-	AudioFileParser.cpp
-	PlayList.cpp
-	Utils.cpp
-	)
-
-target_include_directories(test-metadata PRIVATE
-	../impl
-	)
-
-target_link_libraries(test-metadata PRIVATE
-	lmsmetadata
-	GTest::GTest
-	)
-
-if (NOT CMAKE_CROSSCOMPILING)
-	gtest_discover_tests(test-metadata)
-endif()
-

src/libs/services/artwork/CMakeLists.txt

@@ -14,8 +14,8 @@ target_include_directories(lmsartwork PRIVATE
 	)
 
 target_link_libraries(lmsartwork PRIVATE
+	lmsaudio
 	lmsimage
-	lmsmetadata
 	)
 
 target_link_libraries(lmsartwork PUBLIC

src/libs/services/artwork/impl/ArtworkService.cpp

@@ -23,6 +23,9 @@
 
 #include "core/IConfig.hpp"
 #include "core/ILogger.hpp"
+
+#include "audio/IAudioFileInfo.hpp"
+#include "audio/IImageReader.hpp"
 #include "database/IDb.hpp"
 #include "database/Session.hpp"
 #include "database/objects/Artist.hpp"
@@ -37,7 +40,6 @@
 #include "image/Exception.hpp"
 #include "image/IEncodedImage.hpp"
 #include "image/Image.hpp"
-#include "metadata/IAudioFileParser.hpp"
 
 namespace lms::artwork
 {
@@ -50,7 +52,6 @@ namespace lms::artwork
                                    const std::filesystem::path& defaultReleaseCoverSvgPath,
                                    const std::filesystem::path& defaultArtistImageSvgPath)
         : _db{ db }
-        , _audioFileParser{ metadata::createAudioFileParser(metadata::AudioFileParserParameters{}) }
         , _cache{ core::Service<core::IConfig>::get()->getULong("cover-max-cache-size", 30) * 1000 * 1000 }
     {
         setJpegQuality(core::Service<core::IConfig>::get()->getULong("cover-jpeg-quality", 75));
@@ -107,7 +108,11 @@ namespace lms::artwork
         {
             std::size_t currentIndex{};
 
-            _audioFileParser->parseImages(p, [&](const metadata::Image& parsedImage) {
+            audio::ParserOptions options;
+            options.readStyle = audio::ParserOptions::AudioPropertiesReadStyle::Fast; // only for images
+
+            auto audioFile{ audio::parseAudioFile(p) };
+            audioFile->getImageReader().visitImages([&](const audio::Image& parsedImage) {
                 if (currentIndex++ != index)
                     return;
 
@@ -130,7 +135,7 @@ namespace lms::artwork
                 }
             });
         }
-        catch (const metadata::Exception& e)
+        catch (const audio::Exception& e)
         {
             LMS_LOG(COVER, ERROR, "Cannot parse images from track " << p << ": " << e.what());
         }

src/libs/services/artwork/impl/ArtworkService.hpp

@@ -33,11 +33,6 @@ namespace lms::db
     class Session;
 }
 
-namespace lms::metadata
-{
-    class IAudioFileParser;
-}
-
 namespace lms::artwork
 {
     class ArtworkService : public IArtworkService
@@ -67,7 +62,6 @@ namespace lms::artwork
 
         db::IDb& _db;
 
-        std::unique_ptr<metadata::IAudioFileParser> _audioFileParser;
         ImageCache _cache;
         std::shared_ptr<image::IEncodedImage> _defaultReleaseCover;
         std::shared_ptr<image::IEncodedImage> _defaultArtistImage;

src/libs/services/scanner/CMakeLists.txt

@@ -1,12 +1,17 @@
 add_library(lmsscanner STATIC
 	impl/helpers/ArtistHelpers.cpp
-	impl/scanners/ArtistInfoFileScanner.cpp
-	impl/scanners/AudioFileScanOperation.cpp
+	impl/scanners/artistinfo/ArtistInfoParser.cpp
+	impl/scanners/artistinfo/ArtistInfoFileScanner.cpp
+	impl/scanners/audiofile/AudioFileScanOperation.cpp
+	impl/scanners/audiofile/AudioFileScanner.cpp
+	impl/scanners/audiofile/TrackMetadataParser.cpp
+	impl/scanners/audiofile/Utils.cpp
+	impl/scanners/lyrics/LyricsFileScanner.cpp
+	impl/scanners/lyrics/LyricsParser.cpp
+	impl/scanners/playlist/PlayListFileScanner.cpp
+	impl/scanners/playlist/PlayListParser.cpp
 	impl/scanners/FileScanOperationBase.cpp
-	impl/scanners/AudioFileScanner.cpp
 	impl/scanners/ImageFileScanner.cpp
-	impl/scanners/LyricsFileScanner.cpp
-	impl/scanners/PlayListFileScanner.cpp
 	impl/scanners/Utils.cpp
 	impl/steps/JobQueue.cpp
 	impl/steps/ScanErrorLogger.cpp
@@ -43,13 +48,22 @@ target_include_directories(lmsscanner PRIVATE
 
 target_link_libraries(lmsscanner PRIVATE
 	lmscore
-	lmsdatabase
+	lmsaudio
 	lmsimage
-	lmsmetadata
 	lmsrecommendation
+	pugixml::pugixml
 	)
 
 target_link_libraries(lmsscanner PUBLIC
+	lmsdatabase
 	std::filesystem
 	Wt::Wt
 	)
+
+if(BUILD_TESTING)
+	add_subdirectory(test)
+endif()
+
+if (BUILD_BENCHMARKS)
+	add_subdirectory(bench)
+endif()

src/libs/services/scanner/bench/CMakeLists.txt

@@ -0,0 +1,17 @@
+
+add_executable(bench-scanner
+	Lyrics.cpp
+	Scanner.cpp
+	TrackMetadataParser.cpp
+	)
+
+target_include_directories(bench-scanner PRIVATE
+	../impl
+	../test
+	)
+
+target_link_libraries(bench-scanner PRIVATE
+	lmsscanner
+	lmsaudio
+	benchmark
+	)

src/libs/services/scanner/bench/Lyrics.cpp

@@ -22,9 +22,9 @@
 
 #include <benchmark/benchmark.h>
 
-#include "metadata/Lyrics.hpp"
+#include "scanners/lyrics/LyricsParser.hpp"
 
-namespace lms::metadata::benchmarks
+namespace lms::scanner::benchmarks
 {
     static void BM_Lyrics(benchmark::State& state)
     {
@@ -89,4 +89,4 @@ namespace lms::metadata::benchmarks
 
     BENCHMARK(BM_Lyrics);
 
-} // namespace lms::metadata::benchmarks
+} // namespace lms::scanner::benchmarks

src/libs/services/scanner/bench/Scanner.cpp

@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2025 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <benchmark/benchmark.h>
+
+BENCHMARK_MAIN();

src/libs/services/scanner/bench/TrackMetadataParser.cpp

@@ -19,30 +19,22 @@
 
 #include <benchmark/benchmark.h>
 
-#include "AudioFileParser.hpp"
+#include "scanners/audiofile/TrackMetadataParser.hpp"
+
 #include "TestTagReader.hpp"
-#include "core/String.hpp"
-#include "metadata/Types.hpp"
 
-namespace lms::metadata::benchmarks
+namespace lms::scanner::benchmarks
 {
-    class TestAudioFileParser : public AudioFileParser
-    {
-    public:
-        using AudioFileParser::AudioFileParser;
-        using AudioFileParser::parseMetaData;
-    };
-
     static void BM_Metadata_parse(benchmark::State& state)
     {
-        AudioFileParserParameters params;
+        TrackMetadataParser::Parameters params;
         params.userExtraTags = { "MY_AWESOME_TAG_A", "MY_AWESOME_TAG_B", "MY_AWESOME_MISSING_TAG" };
 
-        std::unique_ptr<ITagReader> testTags{ tests::createDefaultPopulatedTestTagReader() };
-        const TestAudioFileParser parser{ params };
+        std::unique_ptr<audio::ITagReader> testTags{ tests::createDefaultPopulatedTestTagReader() };
+        const TrackMetadataParser parser{ params };
         for (auto _ : state)
         {
-            std::unique_ptr<Track> track{ parser.parseMetaData(*testTags) };
+            benchmark::DoNotOptimize(parser.parseTrackMetaData(*testTags));
         }
     }
 
@@ -50,16 +42,15 @@ namespace lms::metadata::benchmarks
     {
         const tests::TestTagReader testTags{
             {
-                { TagType::Artist, { "AC/DC; MyArtist" } },
+                { audio::TagType::Artist, { "AC/DC; MyArtist" } },
             }
         };
 
-        const AudioFileParserParameters params;
-        const TestAudioFileParser parser{ params };
+        const TrackMetadataParser parser;
 
         for (auto _ : state)
         {
-            std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
+            benchmark::DoNotOptimize(parser.parseTrackMetaData(testTags));
         }
     }
 
@@ -67,11 +58,11 @@ namespace lms::metadata::benchmarks
     {
         const tests::TestTagReader testTags{
             {
-                { TagType::Artist, { "AC/DC; MyArtist" } },
+                { audio::TagType::Artist, { "AC/DC; MyArtist" } },
             }
         };
 
-        AudioFileParserParameters params;
+        TrackMetadataParser::Parameters params;
         params.artistTagDelimiters = { "/", ";" };
         // The list itself is not important, the idea is to have some volume
         params.artistsToNotSplit = { "AC/DC",
@@ -113,10 +104,10 @@ namespace lms::metadata::benchmarks
                                      "White/Light",
                                      "Yamantaka // Sonic Titan" };
 
-        const TestAudioFileParser parser{ params };
+        const TrackMetadataParser parser{ params };
         for (auto _ : state)
         {
-            std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
+            benchmark::DoNotOptimize(parser.parseTrackMetaData(testTags));
         }
     }
 
@@ -124,18 +115,18 @@ namespace lms::metadata::benchmarks
     {
         const tests::TestTagReader testTags{
             {
-                { TagType::Artist, { "AC/DC; MyArtist" } },
+                { audio::TagType::Artist, { "AC/DC; MyArtist" } },
             }
         };
 
-        AudioFileParserParameters params;
+        TrackMetadataParser::Parameters params;
         params.artistTagDelimiters = { "/", ";" };
 
-        const TestAudioFileParser parser{ params };
+        const TrackMetadataParser parser{ params };
 
         for (auto _ : state)
         {
-            std::unique_ptr<Track> track{ parser.parseMetaData(testTags) };
+            benchmark::DoNotOptimize(parser.parseTrackMetaData(testTags));
         }
     }
 
@@ -144,6 +135,4 @@ namespace lms::metadata::benchmarks
     BENCHMARK(BM_Metadata_parseArtists_WithWhitelist);
     BENCHMARK(BM_Metadata_parseArtists_WithoutWhitelist);
 
-} // namespace lms::metadata::benchmarks
-
-BENCHMARK_MAIN();
+} // namespace lms::scanner::benchmarks

src/libs/services/scanner/impl/ScannerService.cpp

@@ -27,15 +27,16 @@
 #include "core/IJobScheduler.hpp"
 #include "core/ILogger.hpp"
 #include "core/ITraceLogger.hpp"
+
 #include "database/Session.hpp"
 #include "database/objects/MediaLibrary.hpp"
 #include "database/objects/ScanSettings.hpp"
 
-#include "scanners/ArtistInfoFileScanner.hpp"
-#include "scanners/AudioFileScanner.hpp"
 #include "scanners/ImageFileScanner.hpp"
-#include "scanners/LyricsFileScanner.hpp"
-#include "scanners/PlayListFileScanner.hpp"
+#include "scanners/artistinfo/ArtistInfoFileScanner.hpp"
+#include "scanners/audiofile/AudioFileScanner.hpp"
+#include "scanners/lyrics/LyricsFileScanner.hpp"
+#include "scanners/playlist/PlayListFileScanner.hpp"
 
 #include "steps/ScanStepArtistReconciliation.hpp"
 #include "steps/ScanStepAssociateArtistImages.hpp"

src/libs/services/scanner/impl/helpers/ArtistHelpers.cpp

@@ -21,13 +21,14 @@
 
 #include "core/ILogger.hpp"
 #include "database/Session.hpp"
-#include "metadata/Types.hpp"
+
+#include "types/TrackMetadata.hpp"
 
 namespace lms::scanner::helpers
 {
     namespace
     {
-        db::Artist::pointer createArtist(db::Session& session, const metadata::Artist& artistInfo)
+        db::Artist::pointer createArtist(db::Session& session, const Artist& artistInfo)
         {
             db::Artist::pointer artist{ session.create<db::Artist>(artistInfo.name) };
 
@@ -44,7 +45,7 @@ namespace lms::scanner::helpers
             return uuid ? std::string{ uuid->getAsString() } : "<no MBID>";
         }
 
-        void updateArtistIfNeeded(db::Artist::pointer artist, const metadata::Artist& artistInfo)
+        void updateArtistIfNeeded(db::Artist::pointer artist, const Artist& artistInfo)
         {
             // MBID may be set
             if (artist->getMBID() != artistInfo.mbid)
@@ -68,7 +69,7 @@ namespace lms::scanner::helpers
 
     } // namespace
 
-    db::Artist::pointer getOrCreateArtistByMBID(db::Session& session, const metadata::Artist& artistInfo, AllowFallbackOnMBIDEntry allowFallbackOnMBIDEntries)
+    db::Artist::pointer getOrCreateArtistByMBID(db::Session& session, const Artist& artistInfo, AllowFallbackOnMBIDEntry allowFallbackOnMBIDEntries)
     {
         assert(artistInfo.mbid.has_value());
         db::Artist::pointer artist{ db::Artist::find(session, *artistInfo.mbid) };
@@ -99,7 +100,7 @@ namespace lms::scanner::helpers
         return artist;
     }
 
-    db::Artist::pointer getOrCreateArtistByName(db::Session& session, const metadata::Artist& artistInfo, AllowFallbackOnMBIDEntry allowFallbackOnMBIDEntries)
+    db::Artist::pointer getOrCreateArtistByName(db::Session& session, const Artist& artistInfo, AllowFallbackOnMBIDEntry allowFallbackOnMBIDEntries)
     {
         db::Artist::pointer artist;
 
@@ -139,7 +140,7 @@ namespace lms::scanner::helpers
         return artist;
     }
 
-    db::Artist::pointer getOrCreateArtist(db::Session& session, const metadata::Artist& artistInfo, AllowFallbackOnMBIDEntry allowFallbackOnMBIDEntries)
+    db::Artist::pointer getOrCreateArtist(db::Session& session, const Artist& artistInfo, AllowFallbackOnMBIDEntry allowFallbackOnMBIDEntries)
     {
         // First try to get by MBID
         if (artistInfo.mbid)

src/libs/services/scanner/impl/helpers/ArtistHelpers.hpp

@@ -20,9 +20,10 @@
 #pragma once
 
 #include "core/TaggedType.hpp"
+
 #include "database/objects/Artist.hpp"
 
-namespace lms::metadata
+namespace lms::scanner
 {
     struct Artist;
 }
@@ -31,8 +32,8 @@ namespace lms::scanner::helpers
 {
     using AllowFallbackOnMBIDEntry = core::TaggedBool<struct AllowFallbackOnMBIDEntryTag>;
 
-    db::Artist::pointer getOrCreateArtistByMBID(db::Session& session, const metadata::Artist& artistInfo, AllowFallbackOnMBIDEntry allowFallbackOnMBIDEntries);
-    db::Artist::pointer getOrCreateArtistByName(db::Session& session, const metadata::Artist& artistInfo, AllowFallbackOnMBIDEntry allowFallbackOnMBIDEntries);
-    db::Artist::pointer getOrCreateArtist(db::Session& session, const metadata::Artist& artistInfo, AllowFallbackOnMBIDEntry allowFallbackOnMBIDEntries);
+    db::Artist::pointer getOrCreateArtistByMBID(db::Session& session, const Artist& artistInfo, AllowFallbackOnMBIDEntry allowFallbackOnMBIDEntries);
+    db::Artist::pointer getOrCreateArtistByName(db::Session& session, const Artist& artistInfo, AllowFallbackOnMBIDEntry allowFallbackOnMBIDEntries);
+    db::Artist::pointer getOrCreateArtist(db::Session& session, const Artist& artistInfo, AllowFallbackOnMBIDEntry allowFallbackOnMBIDEntries);
 
 } // namespace lms::scanner::helpers

src/libs/services/scanner/impl/scanners/artistinfo/ArtistInfoFileScanner.cpp

@@ -24,19 +24,22 @@
 
 #include "core/ILogger.hpp"
 #include "core/String.hpp"
+
 #include "database/IDb.hpp"
 #include "database/Session.hpp"
 #include "database/objects/Artist.hpp"
 #include "database/objects/ArtistInfo.hpp"
 #include "database/objects/MediaLibrary.hpp"
-#include "metadata/ArtistInfo.hpp"
-#include "metadata/Types.hpp"
+
 #include "services/scanner/ScanErrors.hpp"
 
-#include "FileScanOperationBase.hpp"
 #include "ScannerSettings.hpp"
-#include "Utils.hpp"
 #include "helpers/ArtistHelpers.hpp"
+#include "scanners/FileScanOperationBase.hpp"
+#include "scanners/Utils.hpp"
+#include "scanners/artistinfo/ArtistInfoParser.hpp"
+#include "types/ArtistInfo.hpp"
+#include "types/TrackMetadata.hpp"
 
 namespace lms::scanner
 {
@@ -57,7 +60,7 @@ namespace lms::scanner
 
             std::string getArtistNameFromArtistInfoFilePath();
 
-            std::optional<metadata::ArtistInfo> _parsedArtistInfo;
+            std::optional<ArtistInfo> _parsedArtistInfo;
         };
 
         void ArtistInfoFileScanOperation::scan()
@@ -72,14 +75,14 @@ namespace lms::scanner
                     return;
                 }
 
-                _parsedArtistInfo = metadata::parseArtistInfo(ifs);
+                _parsedArtistInfo = parseArtistInfo(ifs);
                 if (_parsedArtistInfo->name.empty())
                 {
                     _parsedArtistInfo->name = getFilePath().parent_path().filename();
                     LMS_LOG(DBUPDATER, DEBUG, "No name found in " << getFilePath() << ", using '" << _parsedArtistInfo->name << "'");
                 }
             }
-            catch (const metadata::ArtistInfoParseException& e)
+            catch (const ArtistInfoParseException& e)
             {
                 addError<ArtistInfoFileScanError>(getFilePath());
             }
@@ -121,7 +124,7 @@ namespace lms::scanner
             db::MediaLibrary::pointer mediaLibrary{ db::MediaLibrary::find(dbSession, getMediaLibrary().id) }; // may be null if settings are updated in // => next scan will correct this
             artistInfo.modify()->setDirectory(utils::getOrCreateDirectory(dbSession, getFilePath().parent_path(), mediaLibrary));
 
-            const metadata::Artist artistMetadata{ _parsedArtistInfo->mbid, _parsedArtistInfo->name, _parsedArtistInfo->sortName.empty() ? std::nullopt : std::make_optional<std::string>(_parsedArtistInfo->sortName) };
+            const Artist artistMetadata{ _parsedArtistInfo->mbid, _parsedArtistInfo->name, _parsedArtistInfo->sortName.empty() ? std::nullopt : std::make_optional<std::string>(_parsedArtistInfo->sortName) };
             db::Artist::pointer artist{ helpers::getOrCreateArtist(dbSession, artistMetadata, helpers::AllowFallbackOnMBIDEntry{ getScannerSettings().allowArtistMBIDFallback }) };
             artistInfo.modify()->setArtist(artist);
             artistInfo.modify()->setMBIDMatched(_parsedArtistInfo->mbid.has_value() && _parsedArtistInfo->mbid == artist->getMBID());
@@ -150,7 +153,7 @@ namespace lms::scanner
 
     std::span<const std::filesystem::path> ArtistInfoFileScanner::getSupportedFiles() const
     {
-        return metadata::getSupportedArtistInfoFiles();
+        return getSupportedArtistInfoFiles();
     }
 
     std::span<const std::filesystem::path> ArtistInfoFileScanner::getSupportedExtensions() const

src/libs/services/scanner/impl/scanners/artistinfo/ArtistInfoFileScanner.hpp

@@ -19,7 +19,7 @@
 
 #pragma once
 
-#include "IFileScanner.hpp"
+#include "scanners/IFileScanner.hpp"
 
 namespace lms::db
 {

src/libs/services/scanner/impl/scanners/artistinfo/ArtistInfoParser.cpp

@@ -17,7 +17,7 @@
  * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "metadata/ArtistInfo.hpp"
+#include "ArtistInfoParser.hpp"
 
 #include <pugixml.hpp>
 
@@ -25,7 +25,7 @@
 #include "core/LiteralString.hpp"
 #include "core/String.hpp"
 
-namespace lms::metadata
+namespace lms::scanner
 {
     namespace
     {
@@ -77,4 +77,4 @@ namespace lms::metadata
 
         return artistInfo;
     }
-} // namespace lms::metadata
+} // namespace lms::scanner

src/libs/services/scanner/impl/scanners/artistinfo/ArtistInfoParser.hpp

@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2025 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <filesystem>
+#include <iosfwd>
+#include <span>
+
+#include "core/Exception.hpp"
+
+#include "types/ArtistInfo.hpp"
+
+namespace lms::scanner
+{
+    class ArtistInfoParseException : public core::LmsException
+    {
+    public:
+        using core::LmsException::LmsException;
+    };
+
+    std::span<const std::filesystem::path> getSupportedArtistInfoFiles();
+    ArtistInfo parseArtistInfo(std::istream& is);
+} // namespace lms::scanner

src/libs/services/scanner/impl/scanners/audiofile/AudioFileScanOperation.cpp

@@ -24,6 +24,11 @@
 #include "core/PartialDateTime.hpp"
 #include "core/Path.hpp"
 #include "core/XxHash3.hpp"
+
+#include "audio/IAudioFileInfo.hpp"
+#include "image/Exception.hpp"
+#include "image/Image.hpp"
+
 #include "database/IDb.hpp"
 #include "database/Session.hpp"
 #include "database/Types.hpp"
@@ -40,36 +45,34 @@
 #include "database/objects/TrackEmbeddedImageLink.hpp"
 #include "database/objects/TrackFeatures.hpp"
 #include "database/objects/TrackLyrics.hpp"
-#include "image/Exception.hpp"
-#include "image/Image.hpp"
-#include "metadata/Exception.hpp"
-#include "metadata/IAudioFileParser.hpp"
+
 #include "services/scanner/ScanErrors.hpp"
 
-#include "IFileScanOperation.hpp"
 #include "ScannerSettings.hpp"
-#include "Utils.hpp"
 #include "helpers/ArtistHelpers.hpp"
+#include "scanners/IFileScanOperation.hpp"
+#include "scanners/Utils.hpp"
+#include "scanners/audiofile/TrackMetadataParser.hpp"
 
 namespace lms::scanner
 {
     namespace
     {
-        void createTrackArtistLinks(db::Session& session, const db::Track::pointer& track, db::TrackArtistLinkType linkType, std::string_view role, std::span<const metadata::Artist> artists, helpers::AllowFallbackOnMBIDEntry allowArtistMBIDFallback)
+        void createTrackArtistLinks(db::Session& session, const db::Track::pointer& track, db::TrackArtistLinkType linkType, std::string_view role, std::span<const Artist> artists, helpers::AllowFallbackOnMBIDEntry allowArtistMBIDFallback)
         {
-            for (const metadata::Artist& artistInfo : artists)
+            for (const Artist& artist : artists)
             {
-                db::Artist::pointer artist{ helpers::getOrCreateArtist(session, artistInfo, allowArtistMBIDFallback) };
+                db::Artist::pointer dbArtist{ helpers::getOrCreateArtist(session, artist, allowArtistMBIDFallback) };
 
-                const bool matchedUsingMbid{ artistInfo.mbid.has_value() && artist->getMBID() == artistInfo.mbid };
-                db::TrackArtistLink::pointer link{ session.create<db::TrackArtistLink>(track, artist, linkType, role, matchedUsingMbid) };
-                link.modify()->setArtistName(artistInfo.name);
-                if (artistInfo.sortName)
-                    link.modify()->setArtistSortName(*artistInfo.sortName);
+                const bool matchedUsingMbid{ artist.mbid.has_value() && dbArtist->getMBID() == artist.mbid };
+                db::TrackArtistLink::pointer link{ session.create<db::TrackArtistLink>(track, dbArtist, linkType, role, matchedUsingMbid) };
+                link.modify()->setArtistName(artist.name);
+                if (artist.sortName)
+                    link.modify()->setArtistSortName(*artist.sortName);
             }
         }
 
-        void createTrackArtistLinks(db::Session& session, const db::Track::pointer& track, db::TrackArtistLinkType linkType, std::span<const metadata::Artist> artists, helpers::AllowFallbackOnMBIDEntry allowArtistMBIDFallback)
+        void createTrackArtistLinks(db::Session& session, const db::Track::pointer& track, db::TrackArtistLinkType linkType, std::span<const Artist> artists, helpers::AllowFallbackOnMBIDEntry allowArtistMBIDFallback)
         {
             constexpr std::string_view noRole{};
             createTrackArtistLinks(session, track, linkType, noRole, artists, allowArtistMBIDFallback);
@@ -102,128 +105,128 @@ namespace lms::scanner
             return label;
         }
 
-        void updateReleaseIfNeeded(db::Session& session, db::Release::pointer release, const metadata::Release& releaseInfo)
+        void updateReleaseIfNeeded(db::Session& session, db::Release::pointer dbRelease, const Release& release)
         {
-            if (release->getName() != releaseInfo.name)
-                release.modify()->setName(releaseInfo.name);
-            if (release->getSortName() != releaseInfo.sortName)
-                release.modify()->setSortName(releaseInfo.sortName);
-            if (release->getGroupMBID() != releaseInfo.groupMBID)
-                release.modify()->setGroupMBID(releaseInfo.groupMBID);
-            if (release->getTotalDisc() != releaseInfo.mediumCount)
-                release.modify()->setTotalDisc(releaseInfo.mediumCount);
-            if (release->getArtistDisplayName() != releaseInfo.artistDisplayName)
-                release.modify()->setArtistDisplayName(releaseInfo.artistDisplayName);
-            if (release->isCompilation() != releaseInfo.isCompilation)
-                release.modify()->setCompilation(releaseInfo.isCompilation);
-            if (release->getBarcode() != releaseInfo.barcode)
-                release.modify()->setBarcode(releaseInfo.barcode);
-            if (release->getComment() != releaseInfo.comment)
-                release.modify()->setComment(releaseInfo.comment);
-            if (release->getReleaseTypeNames() != releaseInfo.releaseTypes)
+            if (dbRelease->getName() != release.name)
+                dbRelease.modify()->setName(release.name);
+            if (dbRelease->getSortName() != release.sortName)
+                dbRelease.modify()->setSortName(release.sortName);
+            if (dbRelease->getGroupMBID() != release.groupMBID)
+                dbRelease.modify()->setGroupMBID(release.groupMBID);
+            if (dbRelease->getTotalDisc() != release.mediumCount)
+                dbRelease.modify()->setTotalDisc(release.mediumCount);
+            if (dbRelease->getArtistDisplayName() != release.artistDisplayName)
+                dbRelease.modify()->setArtistDisplayName(release.artistDisplayName);
+            if (dbRelease->isCompilation() != release.isCompilation)
+                dbRelease.modify()->setCompilation(release.isCompilation);
+            if (dbRelease->getBarcode() != release.barcode)
+                dbRelease.modify()->setBarcode(release.barcode);
+            if (dbRelease->getComment() != release.comment)
+                dbRelease.modify()->setComment(release.comment);
+            if (dbRelease->getReleaseTypeNames() != release.releaseTypes)
             {
-                release.modify()->clearReleaseTypes();
-                for (std::string_view releaseType : releaseInfo.releaseTypes)
-                    release.modify()->addReleaseType(getOrCreateReleaseType(session, releaseType));
+                dbRelease.modify()->clearReleaseTypes();
+                for (std::string_view releaseType : release.releaseTypes)
+                    dbRelease.modify()->addReleaseType(getOrCreateReleaseType(session, releaseType));
             }
-            if (release->getCountryNames() != releaseInfo.countries)
+            if (dbRelease->getCountryNames() != release.countries)
             {
-                release.modify()->clearCountries();
-                for (std::string_view country : releaseInfo.countries)
-                    release.modify()->addCountry(getOrCreateCountry(session, country));
+                dbRelease.modify()->clearCountries();
+                for (std::string_view country : release.countries)
+                    dbRelease.modify()->addCountry(getOrCreateCountry(session, country));
             }
-            if (release->getLabelNames() != releaseInfo.labels)
+            if (dbRelease->getLabelNames() != release.labels)
             {
-                release.modify()->clearLabels();
-                for (std::string_view label : releaseInfo.labels)
-                    release.modify()->addLabel(getOrCreateLabel(session, label));
+                dbRelease.modify()->clearLabels();
+                for (std::string_view label : release.labels)
+                    dbRelease.modify()->addLabel(getOrCreateLabel(session, label));
             }
         }
 
         // Compare release level info
-        bool isReleaseMatching(const db::Release::pointer& candidateRelease, const metadata::Release& releaseInfo)
+        bool isReleaseMatching(const db::Release::pointer& dbCandidateRelease, const Release& release)
         {
             // TODO: add more criterias?
-            return candidateRelease->getName() == releaseInfo.name
-                && candidateRelease->getSortName() == releaseInfo.sortName
-                && candidateRelease->getTotalDisc() == releaseInfo.mediumCount
-                && candidateRelease->isCompilation() == releaseInfo.isCompilation
-                && candidateRelease->getLabelNames() == releaseInfo.labels
-                && candidateRelease->getBarcode() == releaseInfo.barcode;
+            return dbCandidateRelease->getName() == release.name
+                && dbCandidateRelease->getSortName() == release.sortName
+                && dbCandidateRelease->getTotalDisc() == release.mediumCount
+                && dbCandidateRelease->isCompilation() == release.isCompilation
+                && dbCandidateRelease->getLabelNames() == release.labels
+                && dbCandidateRelease->getBarcode() == release.barcode;
         }
 
-        db::Release::pointer getOrCreateRelease(db::Session& session, const metadata::Release& releaseInfo, const db::Directory::pointer& currentDirectory)
+        db::Release::pointer getOrCreateRelease(db::Session& session, const Release& release, const db::Directory::pointer& currentDirectory)
         {
-            db::Release::pointer release;
+            db::Release::pointer dbRelease;
 
             // First try to get by MBID: fastest, safest
-            if (releaseInfo.mbid)
+            if (release.mbid)
             {
-                release = db::Release::find(session, *releaseInfo.mbid);
-                if (!release)
-                    release = session.create<db::Release>(releaseInfo.name, releaseInfo.mbid);
+                dbRelease = db::Release::find(session, *release.mbid);
+                if (!dbRelease)
+                    dbRelease = session.create<db::Release>(release.name, release.mbid);
             }
-            else if (releaseInfo.name.empty())
+            else if (release.name.empty())
             {
                 // No release name (only mbid) -> nothing to do
-                return release;
+                return dbRelease;
             }
 
             // Fall back on release name (collisions may occur)
             // First try using all sibling directories (case for Album/DiscX), only if the disc number is set
             const db::DirectoryId parentDirectoryId{ currentDirectory->getParentDirectoryId() };
-            if (!release && releaseInfo.mediumCount && *releaseInfo.mediumCount > 1 && parentDirectoryId.isValid())
+            if (!dbRelease && release.mediumCount && *release.mediumCount > 1 && parentDirectoryId.isValid())
             {
                 db::Release::FindParameters params;
                 params.setParentDirectory(parentDirectoryId);
-                params.setName(releaseInfo.name);
-                db::Release::find(session, params, [&](const db::Release::pointer& candidateRelease) {
+                params.setName(release.name);
+                db::Release::find(session, params, [&](const db::Release::pointer& dbCandidateRelease) {
                     // Already found a candidate
-                    if (release)
+                    if (dbRelease)
                         return;
 
                     // Do not fallback on properly tagged releases
-                    if (candidateRelease->getMBID().has_value())
+                    if (dbCandidateRelease->getMBID().has_value())
                         return;
 
-                    if (!isReleaseMatching(candidateRelease, releaseInfo))
+                    if (!isReleaseMatching(dbCandidateRelease, release))
                         return;
 
-                    release = candidateRelease;
+                    dbRelease = dbCandidateRelease;
                 });
             }
 
             // Lastly try in the current directory: we do this at last to have
             // opportunities to merge releases in case of migration / rescan
-            if (!release)
+            if (!dbRelease)
             {
                 db::Release::FindParameters params;
                 params.setDirectory(currentDirectory->getId());
-                params.setName(releaseInfo.name);
-                db::Release::find(session, params, [&](const db::Release::pointer& candidateRelease) {
+                params.setName(release.name);
+                db::Release::find(session, params, [&](const db::Release::pointer& dbCandidateRelease) {
                     // Already found a candidate
-                    if (release)
+                    if (dbRelease)
                         return;
 
                     // Do not fallback on properly tagged releases
-                    if (candidateRelease->getMBID().has_value())
+                    if (dbCandidateRelease->getMBID().has_value())
                         return;
 
-                    if (!isReleaseMatching(candidateRelease, releaseInfo))
+                    if (!isReleaseMatching(dbCandidateRelease, release))
                         return;
 
-                    release = candidateRelease;
+                    dbRelease = dbCandidateRelease;
                 });
             }
 
-            if (!release)
-                release = session.create<db::Release>(releaseInfo.name);
+            if (!dbRelease)
+                dbRelease = session.create<db::Release>(release.name);
 
-            updateReleaseIfNeeded(session, release, releaseInfo);
-            return release;
+            updateReleaseIfNeeded(session, dbRelease, release);
+            return dbRelease;
         }
 
-        db::Medium::pointer getOrCreateMedium(db::Session& session, const metadata::Medium& medium, const db::Release::pointer& release)
+        db::Medium::pointer getOrCreateMedium(db::Session& session, const Medium& medium, const db::Release::pointer& release)
         {
             db::Medium::pointer dbMedium{ db::Medium::find(session, release->getId(), medium.position) };
             if (!dbMedium)
@@ -243,7 +246,7 @@ namespace lms::scanner
             return dbMedium;
         }
 
-        std::vector<db::Cluster::pointer> getOrCreateClusters(db::Session& session, const metadata::Track& track)
+        std::vector<db::Cluster::pointer> getOrCreateClusters(db::Session& session, const Track& track)
         {
             std::vector<db::Cluster::pointer> clusters;
 
@@ -274,69 +277,69 @@ namespace lms::scanner
             return clusters;
         }
 
-        db::TrackLyrics::pointer createLyrics(db::Session& session, const metadata::Lyrics& lyricsInfo)
+        db::TrackLyrics::pointer createLyrics(db::Session& session, const Lyrics& lyrics)
         {
-            db::TrackLyrics::pointer lyrics{ session.create<db::TrackLyrics>() };
+            db::TrackLyrics::pointer dbLyrics{ session.create<db::TrackLyrics>() };
 
-            lyrics.modify()->setLanguage(!lyricsInfo.language.empty() ? lyricsInfo.language : "xxx");
-            lyrics.modify()->setOffset(lyricsInfo.offset);
-            lyrics.modify()->setDisplayArtist(lyricsInfo.displayArtist);
-            lyrics.modify()->setDisplayTitle(lyricsInfo.displayTitle);
-            if (!lyricsInfo.synchronizedLines.empty())
-                lyrics.modify()->setSynchronizedLines(lyricsInfo.synchronizedLines);
+            dbLyrics.modify()->setLanguage(!lyrics.language.empty() ? lyrics.language : "xxx");
+            dbLyrics.modify()->setOffset(lyrics.offset);
+            dbLyrics.modify()->setDisplayArtist(lyrics.displayArtist);
+            dbLyrics.modify()->setDisplayTitle(lyrics.displayTitle);
+            if (!lyrics.synchronizedLines.empty())
+                dbLyrics.modify()->setSynchronizedLines(lyrics.synchronizedLines);
             else
-                lyrics.modify()->setUnsynchronizedLines(lyricsInfo.unsynchronizedLines);
+                dbLyrics.modify()->setUnsynchronizedLines(lyrics.unsynchronizedLines);
 
-            return lyrics;
+            return dbLyrics;
         }
 
-        db::ImageType convertImageType(metadata::Image::Type type)
+        db::ImageType convertImageType(audio::Image::Type type)
         {
             switch (type)
             {
-            case metadata::Image::Type::Unknown:
+            case audio::Image::Type::Unknown:
                 return db::ImageType::Unknown;
-            case metadata::Image::Type::Other:
+            case audio::Image::Type::Other:
                 return db::ImageType::Other;
-            case metadata::Image::Type::FileIcon:
+            case audio::Image::Type::FileIcon:
                 return db::ImageType::FileIcon;
-            case metadata::Image::Type::OtherFileIcon:
+            case audio::Image::Type::OtherFileIcon:
                 return db::ImageType::OtherFileIcon;
-            case metadata::Image::Type::FrontCover:
+            case audio::Image::Type::FrontCover:
                 return db::ImageType::FrontCover;
-            case metadata::Image::Type::BackCover:
+            case audio::Image::Type::BackCover:
                 return db::ImageType::BackCover;
-            case metadata::Image::Type::LeafletPage:
+            case audio::Image::Type::LeafletPage:
                 return db::ImageType::LeafletPage;
-            case metadata::Image::Type::Media:
+            case audio::Image::Type::Media:
                 return db::ImageType::Media;
-            case metadata::Image::Type::LeadArtist:
+            case audio::Image::Type::LeadArtist:
                 return db::ImageType::LeadArtist;
-            case metadata::Image::Type::Artist:
+            case audio::Image::Type::Artist:
                 return db::ImageType::Artist;
-            case metadata::Image::Type::Conductor:
+            case audio::Image::Type::Conductor:
                 return db::ImageType::Conductor;
-            case metadata::Image::Type::Band:
+            case audio::Image::Type::Band:
                 return db::ImageType::Band;
-            case metadata::Image::Type::Composer:
+            case audio::Image::Type::Composer:
                 return db::ImageType::Composer;
-            case metadata::Image::Type::Lyricist:
+            case audio::Image::Type::Lyricist:
                 return db::ImageType::Lyricist;
-            case metadata::Image::Type::RecordingLocation:
+            case audio::Image::Type::RecordingLocation:
                 return db::ImageType::RecordingLocation;
-            case metadata::Image::Type::DuringRecording:
+            case audio::Image::Type::DuringRecording:
                 return db::ImageType::DuringRecording;
-            case metadata::Image::Type::DuringPerformance:
+            case audio::Image::Type::DuringPerformance:
                 return db::ImageType::DuringPerformance;
-            case metadata::Image::Type::MovieScreenCapture:
+            case audio::Image::Type::MovieScreenCapture:
                 return db::ImageType::MovieScreenCapture;
-            case metadata::Image::Type::ColouredFish:
+            case audio::Image::Type::ColouredFish:
                 return db::ImageType::ColouredFish;
-            case metadata::Image::Type::Illustration:
+            case audio::Image::Type::Illustration:
                 return db::ImageType::Illustration;
-            case metadata::Image::Type::BandLogo:
+            case audio::Image::Type::BandLogo:
                 return db::ImageType::BandLogo;
-            case metadata::Image::Type::PublisherLogo:
+            case audio::Image::Type::PublisherLogo:
                 return db::ImageType::PublisherLogo;
             }
 
@@ -361,10 +364,10 @@ namespace lms::scanner
             return image;
         }
 
-        db::TrackEmbeddedImageLink::pointer createTrackEmbeddedImageLink(db::Session& session, const db::Track::pointer& track, const ImageInfo& imageInfo)
+        db::TrackEmbeddedImageLink::pointer createTrackEmbeddedImageLink(db::Session& session, const db::Track::pointer& dbTrack, const ImageInfo& imageInfo)
         {
             const db::TrackEmbeddedImage::pointer image{ getOrCreateTrackEmbeddedImage(session, imageInfo) };
-            db::TrackEmbeddedImageLink::pointer imageLink{ session.create<db::TrackEmbeddedImageLink>(track, image) };
+            db::TrackEmbeddedImageLink::pointer imageLink{ session.create<db::TrackEmbeddedImageLink>(dbTrack, image) };
             imageLink.modify()->setIndex(imageInfo.index);
             imageLink.modify()->setType(convertImageType(imageInfo.type));
             imageLink.modify()->setDescription(imageInfo.description);
@@ -372,35 +375,35 @@ namespace lms::scanner
             return imageLink;
         }
 
-        void updateEmbeddedImages(db::Session& session, db::Track::pointer& track, std::span<const ImageInfo> images)
+        void updateEmbeddedImages(db::Session& session, db::Track::pointer& dbTrack, std::span<const ImageInfo> images)
         {
-            track.modify()->clearEmbeddedImageLinks();
+            dbTrack.modify()->clearEmbeddedImageLinks();
             for (const ImageInfo& imageInfo : images)
             {
-                db::TrackEmbeddedImageLink::pointer link{ createTrackEmbeddedImageLink(session, track, imageInfo) };
-                track.modify()->addEmbeddedImageLink(link);
+                db::TrackEmbeddedImageLink::pointer link{ createTrackEmbeddedImageLink(session, dbTrack, imageInfo) };
+                dbTrack.modify()->addEmbeddedImageLink(link);
             }
         }
 
-        db::Advisory getAdvisory(std::optional<metadata::Track::Advisory> advisory)
+        db::Advisory getAdvisory(std::optional<Track::Advisory> advisory)
         {
             if (!advisory)
                 return db::Advisory::UnSet;
 
             switch (advisory.value())
             {
-            case metadata::Track::Advisory::Clean:
+            case Track::Advisory::Clean:
                 return db::Advisory::Clean;
-            case metadata::Track::Advisory::Explicit:
+            case Track::Advisory::Explicit:
                 return db::Advisory::Explicit;
-            case metadata::Track::Advisory::Unknown:
+            case Track::Advisory::Unknown:
                 return db::Advisory::Unknown;
             }
 
             return db::Advisory::UnSet;
         }
 
-        db::Track::pointer findMovedTrackBySizeAndMetaData(db::Session& session, const metadata::Track& parsedTrack, const std::filesystem::path& trackPath, size_t fileSize)
+        db::Track::pointer findMovedTrackBySizeAndMetaData(db::Session& session, const Track& parsedTrack, const std::filesystem::path& trackPath, size_t fileSize)
         {
             db::Track::FindParameters params;
             // Add as many fields as possible to limit errors
@@ -436,9 +439,9 @@ namespace lms::scanner
             return res;
         }
 
-        void fillInArtistsWithMbid(std::span<const metadata::Artist> artists, std::unordered_map<std::string_view, core::UUID>& artistsWithMbid)
+        void fillInArtistsWithMbid(std::span<const Artist> artists, std::unordered_map<std::string_view, core::UUID>& artistsWithMbid)
         {
-            for (const metadata::Artist& artist : artists)
+            for (const Artist& artist : artists)
             {
                 if (artist.mbid.has_value())
                 {
@@ -448,9 +451,9 @@ namespace lms::scanner
             }
         }
 
-        void fillInMbids(std::span<metadata::Artist> artists, const std::unordered_map<std::string_view, core::UUID>& artistsWithMbid)
+        void fillInMbids(std::span<Artist> artists, const std::unordered_map<std::string_view, core::UUID>& artistsWithMbid)
         {
-            for (metadata::Artist& artist : artists)
+            for (Artist& artist : artists)
             {
                 if (!artist.mbid)
                 {
@@ -461,7 +464,7 @@ namespace lms::scanner
             }
         }
 
-        void fillMissingMbids(metadata::Track& track)
+        void fillMissingMbids(Track& track)
         {
             // first pass: collect all artists that have mbids
             std::unordered_map<std::string_view, core::UUID> artistsWithMbid;
@@ -485,9 +488,10 @@ namespace lms::scanner
         }
     } // namespace
 
-    AudioFileScanOperation::AudioFileScanOperation(FileToScan&& fileToScan, db::IDb& db, const ScannerSettings& settings, metadata::IAudioFileParser& parser)
+    AudioFileScanOperation::AudioFileScanOperation(FileToScan&& fileToScan, db::IDb& db, const ScannerSettings& settings, const TrackMetadataParser& metadataParser, const audio::ParserOptions& parserOptions)
         : FileScanOperationBase{ std::move(fileToScan), db, settings }
-        , _parser{ parser }
+        , _metadataParser{ metadataParser }
+        , _parserOptions{ parserOptions }
     {
     }
 
@@ -495,17 +499,20 @@ namespace lms::scanner
 
     void AudioFileScanOperation::scan()
     {
-        std::unique_ptr<metadata::Track> track;
-
         try
         {
-            _parsedTrack = _parser.parseMetaData(getFilePath());
+            auto audioFileInfo{ audio::parseAudioFile(getFilePath(), _parserOptions) };
+
+            _file.emplace();
+
+            _file->audioProperties = audioFileInfo->getAudioProperties();
+            _file->track = _metadataParser.parseTrackMetaData(audioFileInfo->getTagReader());
 
             // We fill missing artist mbids with mbids found on other artist roles
-            fillMissingMbids(*_parsedTrack);
+            fillMissingMbids(_file->track);
 
             std::size_t index{};
-            _parser.parseImages(getFilePath(), [&](const metadata::Image& image) {
+            audioFileInfo->getImageReader().visitImages([&](const audio::Image& image) {
                 try
                 {
                     image::ImageProperties properties{ image::probeImage(image.data) };
@@ -522,7 +529,7 @@ namespace lms::scanner
                     info.description = image.description;
                     info.properties = properties;
 
-                    _parsedImages.push_back(std::move(info));
+                    _file->images.push_back(std::move(info));
                 }
                 catch (const image::Exception& e)
                 {
@@ -532,15 +539,15 @@ namespace lms::scanner
                 index++;
             });
         }
-        catch (const metadata::AudioFileNoAudioPropertiesException&)
+        catch (const audio::AudioFileNoAudioPropertiesException&)
         {
             addError<NoAudioTrackFoundError>(getFilePath());
         }
-        catch (const metadata::IOException& e)
+        catch (const audio::IOException& e)
         {
             addError<IOScanError>(getFilePath(), e.getErrorCode());
         }
-        catch (const metadata::Exception& e)
+        catch (const audio::Exception& e)
         {
             addError<AudioFileScanError>(getFilePath());
         }
@@ -552,7 +559,7 @@ namespace lms::scanner
 
         db::Session& dbSession{ getDb().getTLSSession() };
         db::Track::pointer track{ db::Track::findByPath(dbSession, getFilePath()) };
-        if (!_parsedTrack)
+        if (!_file)
         {
             if (track)
             {
@@ -562,9 +569,9 @@ namespace lms::scanner
             return OperationResult::Skipped;
         }
 
-        if (_parsedTrack->mbid && (!track || getScannerSettings().skipDuplicateTrackMBID))
+        if (_file->track.mbid && (!track || getScannerSettings().skipDuplicateTrackMBID))
         {
-            std::vector<db::Track::pointer> duplicateTracks{ db::Track::findByMBID(dbSession, *_parsedTrack->mbid) };
+            std::vector<db::Track::pointer> duplicateTracks{ db::Track::findByMBID(dbSession, *_file->track.mbid) };
 
             // find for an existing track MBID as the file may have just been moved
             if (!track && duplicateTracks.size() == 1)
@@ -616,7 +623,7 @@ namespace lms::scanner
         if (!track)
         {
             // maybe the file just moved?
-            track = findMovedTrackBySizeAndMetaData(dbSession, *_parsedTrack, getFilePath(), getFileSize());
+            track = findMovedTrackBySizeAndMetaData(dbSession, _file->track, getFilePath(), getFileSize());
             if (track)
             {
                 LMS_LOG(DBUPDATER, DEBUG, "Considering track " << getFilePath() << " moved from " << track->getAbsoluteFilePath());
@@ -625,7 +632,7 @@ namespace lms::scanner
         }
 
         // We estimate this is an audio file if the duration is not null
-        if (_parsedTrack->audioProperties.duration == std::chrono::milliseconds::zero())
+        if (_file->audioProperties.duration == std::chrono::milliseconds::zero())
         {
             addError<BadAudioDurationError>(getFilePath());
 
@@ -639,8 +646,8 @@ namespace lms::scanner
 
         // ***** Title
         std::string title;
-        if (!_parsedTrack->title.empty())
-            title = _parsedTrack->title;
+        if (!_file->track.title.empty())
+            title = _file->track.title;
         else
         {
             // TODO parse file name to guess track etc.
@@ -665,18 +672,18 @@ namespace lms::scanner
         track.modify()->setScanVersion(getScannerSettings().audioScanVersion);
 
         // Audio properties
-        track.modify()->setBitrate(_parsedTrack->audioProperties.bitrate);
-        track.modify()->setBitsPerSample(_parsedTrack->audioProperties.bitsPerSample);
-        track.modify()->setChannelCount(_parsedTrack->audioProperties.channelCount);
-        track.modify()->setDuration(_parsedTrack->audioProperties.duration);
-        track.modify()->setSampleRate(_parsedTrack->audioProperties.sampleRate);
+        track.modify()->setBitrate(_file->audioProperties.bitrate ? *_file->audioProperties.bitrate : 0);
+        track.modify()->setBitsPerSample(_file->audioProperties.bitsPerSample ? *_file->audioProperties.bitsPerSample : 0);
+        track.modify()->setChannelCount(_file->audioProperties.channelCount ? *_file->audioProperties.channelCount : 0);
+        track.modify()->setDuration(_file->audioProperties.duration);
+        track.modify()->setSampleRate(_file->audioProperties.sampleRate ? *_file->audioProperties.sampleRate : 0);
 
         track.modify()->setFileSize(getFileSize());
         track.modify()->setLastWriteTime(getLastWriteTime());
 
-        if (_parsedTrack->encodingTime.isValid())
+        if (_file->track.encodingTime.isValid())
         {
-            const core::PartialDateTime& encodingTime{ _parsedTrack->encodingTime };
+            const core::PartialDateTime& encodingTime{ _file->track.encodingTime };
             Wt::WDate date;
             Wt::WTime time;
             if (encodingTime.getPrecision() >= core::PartialDateTime::Precision::Day)
@@ -696,61 +703,61 @@ namespace lms::scanner
         track.modify()->clearArtistLinks();
 
         const helpers::AllowFallbackOnMBIDEntry allowFallback{ getScannerSettings().allowArtistMBIDFallback };
-        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Artist, _parsedTrack->artists, allowFallback);
-        if (_parsedTrack->medium && _parsedTrack->medium->release)
-            createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::ReleaseArtist, _parsedTrack->medium->release->artists, allowFallback);
+        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Artist, _file->track.artists, allowFallback);
+        if (_file->track.medium && _file->track.medium->release)
+            createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::ReleaseArtist, _file->track.medium->release->artists, allowFallback);
 
-        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Conductor, _parsedTrack->conductorArtists, allowFallback);
-        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Composer, _parsedTrack->composerArtists, allowFallback);
-        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Lyricist, _parsedTrack->lyricistArtists, allowFallback);
-        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Mixer, _parsedTrack->mixerArtists, allowFallback);
-        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Producer, _parsedTrack->producerArtists, allowFallback);
-        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Remixer, _parsedTrack->remixerArtists, allowFallback);
+        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Conductor, _file->track.conductorArtists, allowFallback);
+        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Composer, _file->track.composerArtists, allowFallback);
+        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Lyricist, _file->track.lyricistArtists, allowFallback);
+        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Mixer, _file->track.mixerArtists, allowFallback);
+        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Producer, _file->track.producerArtists, allowFallback);
+        createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Remixer, _file->track.remixerArtists, allowFallback);
 
-        for (const auto& [role, performers] : _parsedTrack->performerArtists)
+        for (const auto& [role, performers] : _file->track.performerArtists)
             createTrackArtistLinks(dbSession, track, db::TrackArtistLinkType::Performer, role, performers, allowFallback);
 
         // For now, alway tie a medium to a release, and a release mst have at least one medium, even if no disc number is set
-        if (_parsedTrack->medium && _parsedTrack->medium->release)
+        if (_file->track.medium && _file->track.medium->release)
         {
-            db::Release::pointer release{ getOrCreateRelease(dbSession, *_parsedTrack->medium->release, directory) };
+            db::Release::pointer release{ getOrCreateRelease(dbSession, *_file->track.medium->release, directory) };
             assert(release);
             track.modify()->setRelease(release);
-            track.modify()->setMedium(getOrCreateMedium(dbSession, *_parsedTrack->medium, release));
+            track.modify()->setMedium(getOrCreateMedium(dbSession, *_file->track.medium, release));
         }
         else
         {
             track.modify()->setRelease({});
             track.modify()->setMedium({});
         }
-        track.modify()->setClusters(getOrCreateClusters(dbSession, *_parsedTrack));
+        track.modify()->setClusters(getOrCreateClusters(dbSession, _file->track));
         track.modify()->setName(title);
-        track.modify()->setTrackNumber(_parsedTrack->position);
-        track.modify()->setDate(_parsedTrack->date);
-        track.modify()->setOriginalDate(_parsedTrack->originalDate);
-        if (!track->getOriginalDate().isValid() && _parsedTrack->originalYear)
-            track.modify()->setOriginalDate(core::PartialDateTime{ *_parsedTrack->originalYear });
+        track.modify()->setTrackNumber(_file->track.position);
+        track.modify()->setDate(_file->track.date);
+        track.modify()->setOriginalDate(_file->track.originalDate);
+        if (!track->getOriginalDate().isValid() && _file->track.originalYear)
+            track.modify()->setOriginalDate(core::PartialDateTime{ *_file->track.originalYear });
 
         // If a file has an OriginalDate but no date, set it to ease filtering
-        if (!_parsedTrack->date.isValid() && _parsedTrack->originalDate.isValid())
-            track.modify()->setDate(_parsedTrack->originalDate);
+        if (!_file->track.date.isValid() && _file->track.originalDate.isValid())
+            track.modify()->setDate(_file->track.originalDate);
 
-        track.modify()->setRecordingMBID(_parsedTrack->recordingMBID);
-        track.modify()->setTrackMBID(_parsedTrack->mbid);
+        track.modify()->setRecordingMBID(_file->track.recordingMBID);
+        track.modify()->setTrackMBID(_file->track.mbid);
         if (auto trackFeatures{ db::TrackFeatures::find(dbSession, track->getId()) })
             trackFeatures.remove(); // TODO: only if MBID changed?
-        track.modify()->setCopyright(_parsedTrack->copyright);
-        track.modify()->setCopyrightURL(_parsedTrack->copyrightURL);
-        track.modify()->setAdvisory(getAdvisory(_parsedTrack->advisory));
-        track.modify()->setComment(!_parsedTrack->comments.empty() ? _parsedTrack->comments.front() : ""); // only take the first one for now
-        track.modify()->setReplayGain(_parsedTrack->replayGain);
-        track.modify()->setArtistDisplayName(_parsedTrack->artistDisplayName);
+        track.modify()->setCopyright(_file->track.copyright);
+        track.modify()->setCopyrightURL(_file->track.copyrightURL);
+        track.modify()->setAdvisory(getAdvisory(_file->track.advisory));
+        track.modify()->setComment(!_file->track.comments.empty() ? _file->track.comments.front() : ""); // only take the first one for now
+        track.modify()->setReplayGain(_file->track.replayGain);
+        track.modify()->setArtistDisplayName(_file->track.artistDisplayName);
 
         track.modify()->clearEmbeddedLyrics();
-        for (const metadata::Lyrics& lyricsInfo : _parsedTrack->lyrics)
+        for (const Lyrics& lyricsInfo : _file->track.lyrics)
             track.modify()->addLyrics(createLyrics(dbSession, lyricsInfo));
 
-        updateEmbeddedImages(dbSession, track, _parsedImages);
+        updateEmbeddedImages(dbSession, track, _file->images);
 
         if (added)
         {

src/libs/services/scanner/impl/scanners/audiofile/AudioFileScanOperation.hpp

@@ -19,33 +19,32 @@
 
 #pragma once
 
-#include "IFileScanOperation.hpp"
-
-#include <memory>
 #include <vector>
 
+#include "audio/AudioTypes.hpp"
+#include "audio/IAudioFileInfo.hpp"
+#include "audio/IImageReader.hpp"
 #include "image/Types.hpp"
-#include "metadata/Types.hpp"
 
-#include "FileScanOperationBase.hpp"
-#include "FileToScan.hpp"
+#include "scanners/FileScanOperationBase.hpp"
+#include "scanners/FileToScan.hpp"
+#include "scanners/IFileScanOperation.hpp"
+
+#include "types/TrackMetadata.hpp"
 
 namespace lms::db
 {
     class IDb;
 } // namespace lms::db
 
-namespace lms::metadata
-{
-    class IAudioFileParser;
-} // namespace lms::metadata
-
 namespace lms::scanner
 {
+    class TrackMetadataParser;
+
     struct ImageInfo
     {
         std::size_t index;
-        metadata::Image::Type type{ metadata::Image::Type::Unknown };
+        audio::Image::Type type{ audio::Image::Type::Unknown };
         std::uint64_t hash{};
         std::size_t size{};
         image::ImageProperties properties;
@@ -56,7 +55,7 @@ namespace lms::scanner
     class AudioFileScanOperation : public FileScanOperationBase
     {
     public:
-        AudioFileScanOperation(FileToScan&& fileToScan, db::IDb& db, const ScannerSettings& settings, metadata::IAudioFileParser& parser);
+        AudioFileScanOperation(FileToScan&& fileToScan, db::IDb& db, const ScannerSettings& settings, const TrackMetadataParser& metadataParser, const audio::ParserOptions& parserOptions);
         ~AudioFileScanOperation() override;
         AudioFileScanOperation(const AudioFileScanOperation&) = delete;
         AudioFileScanOperation& operator=(const AudioFileScanOperation&) = delete;
@@ -66,9 +65,15 @@ namespace lms::scanner
         void scan() override;
         OperationResult processResult() override;
 
-        metadata::IAudioFileParser& _parser;
-        std::unique_ptr<metadata::Track> _parsedTrack;
-        std::vector<ImageInfo> _parsedImages;
-    };
+        const TrackMetadataParser& _metadataParser;
+        const audio::ParserOptions& _parserOptions;
 
+        struct AudioFileInfo
+        {
+            audio::AudioProperties audioProperties;
+            Track track;
+            std::vector<ImageInfo> images;
+        };
+        std::optional<AudioFileInfo> _file;
+    };
 } // namespace lms::scanner

src/libs/services/scanner/impl/scanners/audiofile/AudioFileScanner.cpp

@@ -21,53 +21,64 @@
 
 #include "core/IConfig.hpp"
 #include "core/Service.hpp"
+
+#include "audio/IAudioFileInfo.hpp"
+
 #include "database/IDb.hpp"
 #include "database/Session.hpp"
 #include "database/objects/MediaLibrary.hpp"
 #include "database/objects/Track.hpp"
-#include "metadata/IAudioFileParser.hpp"
 
-#include "AudioFileScanOperation.hpp"
 #include "ScannerSettings.hpp"
-#include "Utils.hpp"
+#include "scanners/Utils.hpp"
+#include "scanners/audiofile/AudioFileScanOperation.hpp"
+#include "scanners/audiofile/TrackMetadataParser.hpp"
 
 namespace lms::scanner
 {
     namespace
     {
-        metadata::ParserReadStyle getParserReadStyle()
+        audio::ParserOptions::AudioPropertiesReadStyle getParserReadStyle()
         {
             std::string_view readStyle{ core::Service<core::IConfig>::get()->getString("scanner-parser-read-style", "average") };
 
             if (readStyle == "fast")
-                return metadata::ParserReadStyle::Fast;
+                return audio::ParserOptions::AudioPropertiesReadStyle::Fast;
             if (readStyle == "average")
-                return metadata::ParserReadStyle::Average;
+                return audio::ParserOptions::AudioPropertiesReadStyle::Average;
             if (readStyle == "accurate")
-                return metadata::ParserReadStyle::Accurate;
+                return audio::ParserOptions::AudioPropertiesReadStyle::Accurate;
 
             throw core::LmsException{ "Invalid value for 'scanner-parser-read-style'" };
         }
 
-        metadata::AudioFileParserParameters createAudioFileParserParameters(const ScannerSettings& settings)
+        TrackMetadataParser::Parameters createTrackMetadataParserParameters(const ScannerSettings& settings)
         {
-            metadata::AudioFileParserParameters params;
+            TrackMetadataParser::Parameters params;
             params.userExtraTags = settings.extraTags;
             params.artistTagDelimiters = settings.artistTagDelimiters;
             params.defaultTagDelimiters = settings.defaultTagDelimiters;
             params.artistsToNotSplit.insert(settings.artistsToNotSplit.cbegin(), settings.artistsToNotSplit.end());
-            params.backend = metadata::ParserBackend::TagLib;
-            params.readStyle = getParserReadStyle();
 
             return params;
         }
 
+        audio::ParserOptions createAudioFileParserOptions()
+        {
+            audio::ParserOptions options;
+            options.readStyle = getParserReadStyle();
+            options.parser = audio::ParserOptions::Parser::TagLib; // For now, always use TagLib
+
+            return options;
+        }
+
     } // namespace
 
     AudioFileScanner::AudioFileScanner(db::IDb& db, const ScannerSettings& settings)
         : _db{ db }
         , _settings{ settings }
-        , _metadataParser{ metadata::createAudioFileParser(createAudioFileParserParameters(settings)) } // For now, always use TagLib
+        , _trackMetadataParser{ createTrackMetadataParserParameters(settings) }
+        , _parserOptions{ createAudioFileParserOptions() }
     {
     }
 
@@ -85,7 +96,7 @@ namespace lms::scanner
 
     std::span<const std::filesystem::path> AudioFileScanner::getSupportedExtensions() const
     {
-        return _metadataParser->getSupportedExtensions();
+        return audio::getSupportedExtensions(_parserOptions.parser);
     }
 
     bool AudioFileScanner::needsScan(const FileToScan& file) const
@@ -101,6 +112,6 @@ namespace lms::scanner
 
     std::unique_ptr<IFileScanOperation> AudioFileScanner::createScanOperation(FileToScan&& fileToScan) const
     {
-        return std::make_unique<AudioFileScanOperation>(std::move(fileToScan), _db, _settings, *_metadataParser);
+        return std::make_unique<AudioFileScanOperation>(std::move(fileToScan), _db, _settings, _trackMetadataParser, _parserOptions);
     }
 } // namespace lms::scanner

src/libs/services/scanner/impl/scanners/audiofile/AudioFileScanner.hpp

@@ -19,7 +19,10 @@
 
 #pragma once
 
-#include "IFileScanner.hpp"
+#include "audio/IAudioFileInfo.hpp"
+
+#include "scanners/IFileScanner.hpp"
+#include "scanners/audiofile/TrackMetadataParser.hpp"
 
 namespace lms
 {
@@ -55,6 +58,7 @@ namespace lms::scanner
 
         db::IDb& _db;
         const ScannerSettings& _settings;
-        std::unique_ptr<metadata::IAudioFileParser> _metadataParser;
+        const TrackMetadataParser _trackMetadataParser;
+        const audio::ParserOptions _parserOptions;
     };
 } // namespace lms::scanner

src/libs/services/scanner/impl/scanners/audiofile/TrackMetadataParser.cpp

@@ -17,30 +17,26 @@
  * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "AudioFileParser.hpp"
+#include "TrackMetadataParser.hpp"
 
 #include <span>
 #include <string>
 #include <string_view>
 
+#include "audio/IAudioFileInfo.hpp"
 #include "core/ILogger.hpp"
 #include "core/PartialDateTime.hpp"
 #include "core/String.hpp"
-#include "metadata/Exception.hpp"
+
+#include "scanners/lyrics/LyricsParser.hpp"
 
 #include "Utils.hpp"
-#include "avformat/AvFormatImageReader.hpp"
-#include "avformat/AvFormatTagReader.hpp"
-#include "avformat/Utils.hpp"
-#include "taglib/TagLibImageReader.hpp"
-#include "taglib/TagLibTagReader.hpp"
-#include "taglib/Utils.hpp"
 
-namespace lms::metadata
+namespace lms::scanner
 {
     namespace
     {
-        void visitTagValues(const ITagReader& tagReader, std::string_view tagType, std::span<const std::string> tagDelimiters, ITagReader::TagValueVisitor visitor)
+        void visitTagValues(const audio::ITagReader& tagReader, std::string_view tagType, std::span<const std::string> tagDelimiters, audio::ITagReader::TagValueVisitor visitor)
         {
             tagReader.visitTagValues(tagType, [&](std::string_view value) {
                 auto visitTagIfNonEmpty{ [&](std::string_view tag) {
@@ -76,11 +72,11 @@ namespace lms::metadata
         }
 
         template<typename T>
-        std::vector<T> getTagValuesFirstMatchAs(const ITagReader& tagReader, std::initializer_list<TagType> tagTypes, std::span<const std::string> tagDelimiters, const WhiteList* whitelist = nullptr)
+        std::vector<T> getTagValuesFirstMatchAs(const audio::ITagReader& tagReader, std::initializer_list<audio::TagType> tagTypes, std::span<const std::string> tagDelimiters, const TrackMetadataParser::WhiteList* whitelist = nullptr)
         {
             std::vector<T> res;
 
-            for (const TagType tagType : tagTypes)
+            for (const audio::TagType tagType : tagTypes)
             {
                 tagReader.visitTagValues(tagType, [&](std::string_view value) {
                     value = core::stringUtils::stringTrim(value);
@@ -150,7 +146,7 @@ namespace lms::metadata
         }
 
         template<typename T>
-        std::optional<T> getTagValueFirstMatchAs(const ITagReader& tagReader, std::initializer_list<TagType> tagTypes)
+        std::optional<T> getTagValueFirstMatchAs(const audio::ITagReader& tagReader, std::initializer_list<audio::TagType> tagTypes)
         {
             std::optional<T> res;
             std::vector<T> values{ getTagValuesFirstMatchAs<T>(tagReader, tagTypes, {} /* don't expect multiple values here */) };
@@ -161,45 +157,38 @@ namespace lms::metadata
         }
 
         template<typename T>
-        std::vector<T> getTagValuesAs(const ITagReader& tagReader, TagType tagType, std::span<const std::string> tagDelimiters)
+        std::vector<T> getTagValuesAs(const audio::ITagReader& tagReader, audio::TagType tagType, std::span<const std::string> tagDelimiters)
         {
             return getTagValuesFirstMatchAs<T>(tagReader, { tagType }, tagDelimiters);
         }
 
         template<typename T>
-        std::optional<T> getTagValueAs(const ITagReader& tagReader, TagType tagType)
+        std::optional<T> getTagValueAs(const audio::ITagReader& tagReader, audio::TagType tagType)
         {
             return getTagValueFirstMatchAs<T>(tagReader, { tagType });
         }
 
-        std::vector<Lyrics> getLyrics(const ITagReader& tagReader)
+        std::vector<Lyrics> getLyrics(const audio::ITagReader& tagReader)
         {
             std::vector<Lyrics> res;
 
             tagReader.visitLyricsTags([&](std::string_view language, std::string_view lyricsText) {
                 std::istringstream iss{ std::string{ lyricsText } }; // TODO avoid copies (ispanstream?)
-                try
-                {
-                    Lyrics lyrics{ parseLyrics(iss) };
-                    if (lyrics.language.empty())
-                        lyrics.language = language;
+                Lyrics lyrics{ parseLyrics(iss) };
+                if (lyrics.language.empty())
+                    lyrics.language = language;
 
-                    res.emplace_back(std::move(lyrics));
-                }
-                catch (const LyricsException& e)
-                {
-                    LMS_LOG(METADATA, ERROR, "Failed to parse lyrics: " + std::string{ e.what() });
-                }
+                res.emplace_back(std::move(lyrics));
             });
 
             return res;
         }
 
-        std::vector<Artist> getArtists(const ITagReader& tagReader,
-                                       std::initializer_list<TagType> artistTagNames,
-                                       std::initializer_list<TagType> artistSortTagNames,
-                                       std::initializer_list<TagType> artistMBIDTagNames,
-                                       const AudioFileParserParameters& params)
+        std::vector<Artist> getArtists(const audio::ITagReader& tagReader,
+                                       std::initializer_list<audio::TagType> artistTagNames,
+                                       std::initializer_list<audio::TagType> artistSortTagNames,
+                                       std::initializer_list<audio::TagType> artistMBIDTagNames,
+                                       const TrackMetadataParser::Parameters& params)
         {
             std::vector<std::string> artistNames{ getTagValuesFirstMatchAs<std::string>(tagReader, artistTagNames, params.artistTagDelimiters, &params.artistsToNotSplit) };
             if (artistNames.empty())
@@ -224,7 +213,7 @@ namespace lms::metadata
             return artists;
         }
 
-        PerformerContainer getPerformerArtists(const ITagReader& tagReader)
+        PerformerContainer getPerformerArtists(const audio::ITagReader& tagReader)
         {
             PerformerContainer performers;
 
@@ -298,9 +287,9 @@ namespace lms::metadata
             return artistDisplayName;
         }
 
-        std::optional<Track::Advisory> getAdvisory(const ITagReader& tagReader)
+        std::optional<Track::Advisory> getAdvisory(const audio::ITagReader& tagReader)
         {
-            if (const auto value{ getTagValueAs<int>(tagReader, TagType::Advisory) })
+            if (const auto value{ getTagValueAs<int>(tagReader, audio::TagType::Advisory) })
             {
                 switch (*value)
                 {
@@ -318,92 +307,24 @@ namespace lms::metadata
         }
     } // namespace
 
-    std::unique_ptr<IAudioFileParser> createAudioFileParser(const AudioFileParserParameters& params)
-    {
-        return std::make_unique<AudioFileParser>(params);
-    }
-
-    AudioFileParser::AudioFileParser(const AudioFileParserParameters& params)
+    TrackMetadataParser::TrackMetadataParser(const Parameters& params)
         : _params{ params }
     {
-        switch (_params.backend)
-        {
-        case ParserBackend::TagLib:
-            LMS_LOG(METADATA, INFO, "Using TagLib parser with read style = " << utils::readStyleToString(_params.readStyle));
-            break;
-
-        case ParserBackend::AvFormat:
-            LMS_LOG(METADATA, INFO, "Using AvFormat parser");
-            break;
-        }
     }
 
-    std::span<const std::filesystem::path> AudioFileParser::getSupportedExtensions() const
+    TrackMetadataParser::~TrackMetadataParser() = default;
+
+    Track TrackMetadataParser::parseTrackMetaData(const audio::ITagReader& tagReader) const
     {
-        switch (_params.backend)
-        {
-        case ParserBackend::TagLib:
-            return taglib::utils::getSupportedExtensions();
-            break;
-
-        case ParserBackend::AvFormat:
-            return avformat::utils::getSupportedExtensions();
-            break;
-        }
-
-        return {};
-    }
-
-    std::unique_ptr<Track> AudioFileParser::parseMetaData(const std::filesystem::path& p) const
-    {
-        std::unique_ptr<ITagReader> tagReader;
-        switch (_params.backend)
-        {
-        case ParserBackend::TagLib:
-            tagReader = std::make_unique<taglib::TagLibTagReader>(p, _params.readStyle, _params.debug);
-            break;
-
-        case ParserBackend::AvFormat:
-            tagReader = std::make_unique<avformat::AvFormatTagReader>(p, _params.debug);
-            break;
-        }
-        if (!tagReader)
-            throw AudioFileParsingException{ "Unhandled parser backend" };
-
-        return parseMetaData(*tagReader);
-    }
-
-    void AudioFileParser::parseImages(const std::filesystem::path& p, ImageVisitor visitor) const
-    {
-        std::unique_ptr<IImageReader> imageReader;
-        switch (_params.backend)
-        {
-        case ParserBackend::TagLib:
-            imageReader = std::make_unique<taglib::TagLibImageReader>(p);
-            break;
-
-        case ParserBackend::AvFormat:
-            imageReader = std::make_unique<avformat::AvFormatImageReader>(p);
-            break;
-        }
-        if (!imageReader)
-            throw AudioFileParsingException{ "Unhandled parser backend" };
-
-        parseImages(*imageReader, std::move(visitor));
-    }
-
-    std::unique_ptr<Track> AudioFileParser::parseMetaData(const ITagReader& tagReader) const
-    {
-        auto track{ std::make_unique<Track>() };
-
-        track->audioProperties = tagReader.getAudioProperties();
-        processTags(tagReader, *track);
-
+        Track track;
+        processTags(tagReader, track);
         return track;
     }
 
-    void AudioFileParser::processTags(const ITagReader& tagReader, Track& track) const
+    void TrackMetadataParser::processTags(const audio::ITagReader& tagReader, Track& track) const
     {
+        using namespace audio;
+
         track.title = getTagValueAs<std::string>(tagReader, TagType::TrackTitle).value_or("");
         track.mbid = getTagValueAs<core::UUID>(tagReader, TagType::MusicBrainzTrackID);
         track.recordingMBID = getTagValueAs<core::UUID>(tagReader, TagType::MusicBrainzRecordingID);
@@ -469,8 +390,10 @@ namespace lms::metadata
             track.originalYear = track.originalDate.getYear();
     }
 
-    std::optional<Medium> AudioFileParser::getMedium(const ITagReader& tagReader) const
+    std::optional<Medium> TrackMetadataParser::getMedium(const audio::ITagReader& tagReader) const
     {
+        using namespace audio;
+
         std::optional<Medium> medium;
         medium.emplace();
 
@@ -499,8 +422,10 @@ namespace lms::metadata
         return medium;
     }
 
-    std::optional<Release> AudioFileParser::getRelease(const ITagReader& tagReader) const
+    std::optional<Release> TrackMetadataParser::getRelease(const audio::ITagReader& tagReader) const
     {
+        using namespace audio;
+
         std::optional<Release> release;
 
         auto releaseName{ getTagValueAs<std::string>(tagReader, TagType::Album) };
@@ -536,11 +461,4 @@ namespace lms::metadata
 
         return release;
     }
-
-    void AudioFileParser::parseImages(const IImageReader& reader, ImageVisitor visitor)
-    {
-        reader.visitImages([&](const Image& image) {
-            visitor(image);
-        });
-    }
-} // namespace lms::metadata
+} // namespace lms::scanner

src/libs/services/scanner/impl/scanners/audiofile/TrackMetadataParser.hpp

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2018 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <set>
+#include <string>
+
+#include "audio/IAudioFileInfo.hpp"
+#include "audio/ITagReader.hpp"
+
+#include "types/TrackMetadata.hpp"
+
+namespace lms::scanner
+{
+    class TrackMetadataParser
+    {
+    public:
+        struct SortByLengthDesc
+        {
+            bool operator()(const std::string& a, const std::string& b) const
+            {
+                if (a.length() != b.length())
+                    return a.length() > b.length();
+                return a < b; // Break ties using lexicographical order
+            }
+        };
+
+        using WhiteList = std::set<std::string, SortByLengthDesc>;
+        struct Parameters
+        {
+            std::vector<std::string> artistTagDelimiters;
+            WhiteList artistsToNotSplit;
+            std::vector<std::string> defaultTagDelimiters;
+            std::vector<std::string> userExtraTags;
+        };
+
+        TrackMetadataParser(const Parameters& params = {});
+        ~TrackMetadataParser();
+        TrackMetadataParser(const TrackMetadataParser&) = delete;
+        TrackMetadataParser& operator=(const TrackMetadataParser&) = delete;
+
+        Track parseTrackMetaData(const audio::ITagReader& reader) const;
+
+    private:
+        void processTags(const audio::ITagReader& reader, Track& track) const;
+
+        std::optional<Medium> getMedium(const audio::ITagReader& tagReader) const;
+        std::optional<Release> getRelease(const audio::ITagReader& tagReader) const;
+
+        const Parameters _params;
+    };
+} // namespace lms::scanner

src/libs/services/scanner/impl/scanners/audiofile/Utils.cpp

@@ -24,9 +24,7 @@
 #include <sstream>
 #include <string_view>
 
-#include "core/Exception.hpp"
-
-namespace lms::metadata::utils
+namespace lms::scanner::utils
 {
     Wt::WDate parseDate(std::string_view dateStr)
     {
@@ -96,21 +94,6 @@ namespace lms::metadata::utils
         return result * sign;
     }
 
-    std::string_view readStyleToString(ParserReadStyle readStyle)
-    {
-        switch (readStyle)
-        {
-        case ParserReadStyle::Fast:
-            return "fast";
-        case ParserReadStyle::Average:
-            return "average";
-        case ParserReadStyle::Accurate:
-            return "accurate";
-        }
-
-        throw Exception{ "Unknown read style" };
-    }
-
     PerformerArtist extractPerformerAndRole(std::string_view entry)
     {
         std::string_view artistName;
@@ -155,4 +138,4 @@ namespace lms::metadata::utils
 
         return PerformerArtist{ Artist{ artistName }, std::string{ role } };
     }
-} // namespace lms::metadata::utils
+} // namespace lms::scanner::utils

src/libs/services/scanner/impl/scanners/audiofile/Utils.hpp

@@ -25,13 +25,12 @@
 
 #include <Wt/WDate.h>
 
-#include "metadata/Types.hpp"
+#include "types/TrackMetadata.hpp"
 
-namespace lms::metadata::utils
+namespace lms::scanner::utils
 {
     Wt::WDate parseDate(std::string_view dateStr);
     std::optional<int> parseYear(std::string_view yearStr);
-    std::string_view readStyleToString(ParserReadStyle readStyle);
 
     struct PerformerArtist
     {
@@ -41,4 +40,4 @@ namespace lms::metadata::utils
 
     // format is "artist name (role)"
     PerformerArtist extractPerformerAndRole(std::string_view entry);
-} // namespace lms::metadata::utils
+} // namespace lms::scanner::utils

src/libs/services/scanner/impl/scanners/lyrics/LyricsFileScanner.cpp

@@ -22,17 +22,19 @@
 #include <fstream>
 #include <optional>
 
-#include "FileScanOperationBase.hpp"
-#include "ScannerSettings.hpp"
 #include "core/ILogger.hpp"
+
 #include "database/IDb.hpp"
 #include "database/Session.hpp"
 #include "database/objects/MediaLibrary.hpp"
 #include "database/objects/TrackLyrics.hpp"
-#include "metadata/Lyrics.hpp"
 #include "services/scanner/ScanErrors.hpp"
 
-#include "Utils.hpp"
+#include "ScannerSettings.hpp"
+#include "scanners/FileScanOperationBase.hpp"
+#include "scanners/Utils.hpp"
+#include "scanners/lyrics/LyricsParser.hpp"
+#include "types/Lyrics.hpp"
 
 namespace lms::scanner
 {
@@ -48,28 +50,21 @@ namespace lms::scanner
             void scan() override;
             OperationResult processResult() override;
 
-            std::optional<metadata::Lyrics> _parsedLyrics;
+            std::optional<Lyrics> _parsedLyrics;
         };
 
         void LyricsFileScanOperation::scan()
         {
-            try
+            std::ifstream ifs{ getFilePath() };
+            if (!ifs)
             {
-                std::ifstream ifs{ getFilePath() };
-                if (!ifs)
-                {
-                    const std::error_code ec{ errno, std::generic_category() };
+                const std::error_code ec{ errno, std::generic_category() };
 
-                    addError<IOScanError>(getFilePath(), ec);
-                    return;
-                }
+                addError<IOScanError>(getFilePath(), ec);
+                return;
+            }
 
-                _parsedLyrics = metadata::parseLyrics(ifs);
-            }
-            catch (const metadata::Exception& e)
-            {
-                addError<LyricsFileScanError>(getFilePath());
-            }
+            _parsedLyrics = parseLyrics(ifs);
         }
 
         LyricsFileScanOperation::OperationResult LyricsFileScanOperation::processResult()
@@ -140,7 +135,7 @@ namespace lms::scanner
 
     std::span<const std::filesystem::path> LyricsFileScanner::getSupportedExtensions() const
     {
-        return metadata::getSupportedLyricsFileExtensions();
+        return getSupportedLyricsFileExtensions();
     }
 
     bool LyricsFileScanner::needsScan(const FileToScan& file) const

src/libs/services/scanner/impl/scanners/lyrics/LyricsFileScanner.hpp

@@ -19,7 +19,7 @@
 
 #pragma once
 
-#include "IFileScanner.hpp"
+#include "scanners/IFileScanner.hpp"
 
 namespace lms::db
 {

src/libs/services/scanner/impl/scanners/lyrics/LyricsParser.cpp

@@ -17,14 +17,14 @@
  * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "metadata/Lyrics.hpp"
+#include "LyricsParser.hpp"
 
 #include <cassert>
 #include <regex>
 
 #include "core/String.hpp"
 
-namespace lms::metadata
+namespace lms::scanner
 {
     std::span<const std::filesystem::path> getSupportedLyricsFileExtensions()
     {
@@ -227,4 +227,4 @@ namespace lms::metadata
 
         return lyrics;
     }
-} // namespace lms::metadata
+} // namespace lms::scanner

src/libs/services/scanner/impl/scanners/lyrics/LyricsParser.hpp

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2024 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <filesystem>
+#include <iosfwd>
+#include <span>
+
+#include "types/Lyrics.hpp"
+
+namespace lms::scanner
+{
+    std::span<const std::filesystem::path> getSupportedLyricsFileExtensions();
+    Lyrics parseLyrics(std::istream& is);
+} // namespace lms::scanner

src/libs/services/scanner/impl/scanners/playlist/PlayListFileScanner.cpp

@@ -27,12 +27,12 @@
 #include "database/Session.hpp"
 #include "database/objects/MediaLibrary.hpp"
 #include "database/objects/PlayListFile.hpp"
-#include "metadata/Exception.hpp"
-#include "metadata/PlayList.hpp"
 
-#include "FileScanOperationBase.hpp"
-#include "ScanContext.hpp"
-#include "Utils.hpp"
+#include "services/scanner/ScanErrors.hpp"
+
+#include "scanners/FileScanOperationBase.hpp"
+#include "scanners/Utils.hpp"
+#include "scanners/playlist/PlayListParser.hpp"
 
 namespace lms::scanner
 {
@@ -51,28 +51,21 @@ namespace lms::scanner
             void scan() override;
             OperationResult processResult() override;
 
-            std::optional<metadata::PlayList> _parsedPlayList;
+            std::optional<PlayList> _parsedPlayList;
         };
 
         void PlayListFileScanOperation::scan()
         {
-            try
+            std::ifstream ifs{ getFilePath() };
+            if (!ifs)
             {
-                std::ifstream ifs{ getFilePath() };
-                if (!ifs)
-                {
-                    const std::error_code ec{ errno, std::generic_category() };
+                const std::error_code ec{ errno, std::generic_category() };
 
-                    addError<IOScanError>(getFilePath(), ec);
-                    return;
-                }
+                addError<IOScanError>(getFilePath(), ec);
+                return;
+            }
 
-                _parsedPlayList = metadata::parsePlayList(ifs);
-            }
-            catch (const metadata::Exception& e)
-            {
-                addError<PlayListFileScanError>(getFilePath());
-            }
+            _parsedPlayList = parsePlayList(ifs);
         }
 
         PlayListFileScanOperation::OperationResult PlayListFileScanOperation::processResult()
@@ -139,7 +132,7 @@ namespace lms::scanner
 
     std::span<const std::filesystem::path> PlayListFileScanner::getSupportedExtensions() const
     {
-        return metadata::getSupportedPlayListFileExtensions();
+        return getSupportedPlayListFileExtensions();
     }
 
     bool PlayListFileScanner::needsScan(const FileToScan& file) const

src/libs/services/scanner/impl/scanners/playlist/PlayListFileScanner.hpp

@@ -19,7 +19,7 @@
 
 #pragma once
 
-#include "IFileScanner.hpp"
+#include "scanners/IFileScanner.hpp"
 
 namespace lms::db
 {

src/libs/services/scanner/impl/scanners/playlist/PlayListParser.cpp

@@ -17,14 +17,14 @@
  * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "metadata/PlayList.hpp"
+#include "PlayListParser.hpp"
 
 #include <array>
 #include <string_view>
 
 #include "core/String.hpp"
 
-namespace lms::metadata
+namespace lms::scanner
 {
     std::span<const std::filesystem::path> getSupportedPlayListFileExtensions()
     {
@@ -102,4 +102,4 @@ namespace lms::metadata
 
         return playlist;
     }
-} // namespace lms::metadata
+} // namespace lms::scanner

src/libs/services/scanner/impl/scanners/playlist/PlayListParser.hpp

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2024 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <filesystem>
+#include <iosfwd>
+#include <span>
+
+#include "types/PlayList.hpp"
+
+namespace lms::scanner
+{
+    std::span<const std::filesystem::path> getSupportedPlayListFileExtensions();
+    PlayList parsePlayList(std::istream& is);
+} // namespace lms::scanner

src/libs/services/scanner/impl/steps/ScanStepArtistReconciliation.cpp

@@ -30,11 +30,11 @@
 #include "database/objects/Track.hpp"
 #include "database/objects/TrackArtistLink.hpp"
 #include "database/objects/TrackList.hpp"
-#include "metadata/Types.hpp"
 
 #include "ScanContext.hpp"
 #include "ScannerSettings.hpp"
 #include "helpers/ArtistHelpers.hpp"
+#include "types/TrackMetadata.hpp"
 
 namespace lms::scanner
 {
@@ -53,7 +53,7 @@ namespace lms::scanner
         {
             assert(!link->isArtistMBIDMatched());
 
-            metadata::Artist artistInfo{ std::nullopt, link->getArtistName(), link->getArtistSortName().empty() ? std::nullopt : std::make_optional<std::string>(link->getArtistSortName()) };
+            Artist artistInfo{ std::nullopt, link->getArtistName(), link->getArtistSortName().empty() ? std::nullopt : std::make_optional<std::string>(link->getArtistSortName()) };
 
             db::Artist::pointer newArtist{ helpers::getOrCreateArtistByName(session, artistInfo, helpers::AllowFallbackOnMBIDEntry{ allowArtistMBIDFallback }) };
             LMS_LOG(DB, DEBUG, "Reconcile artist link for track " << link->getTrack()->getAbsoluteFilePath() << ", type " << static_cast<int>(link->getType()) << " from " << link->getArtist() << " to " << newArtist);
@@ -66,7 +66,7 @@ namespace lms::scanner
         {
             assert(!artistInfo->isMBIDMatched());
 
-            const metadata::Artist artistMetadata{ std::nullopt, artistInfo->getName(), artistInfo->getSortName().empty() ? std::nullopt : std::make_optional<std::string>(artistInfo->getSortName()) };
+            Artist artistMetadata{ std::nullopt, artistInfo->getName(), artistInfo->getSortName().empty() ? std::nullopt : std::make_optional<std::string>(artistInfo->getSortName()) };
             db::Artist::pointer newArtist{ helpers::getOrCreateArtistByName(session, artistMetadata, helpers::AllowFallbackOnMBIDEntry{ allowArtistMBIDFallback }) };
             LMS_LOG(DB, DEBUG, "Reconcile artist link for artist info " << artistInfo->getAbsoluteFilePath() << " from " << artistInfo->getArtist() << " to " << newArtist);
 

src/libs/services/scanner/impl/types/ArtistInfo.hpp

@@ -19,17 +19,12 @@
 
 #pragma once
 
-#include <filesystem>
-#include <iosfwd>
 #include <optional>
-#include <span>
 #include <string>
 
 #include "core/UUID.hpp"
 
-#include "metadata/Exception.hpp"
-
-namespace lms::metadata
+namespace lms::scanner
 {
     // See:
     // - for the content for the info file: https://kodi.wiki/view/NFO_files/Artists
@@ -44,13 +39,4 @@ namespace lms::metadata
         std::string disambiguation; // mb
         std::string biography;
     };
-
-    class ArtistInfoParseException : public Exception
-    {
-    public:
-        using Exception::Exception;
-    };
-
-    std::span<const std::filesystem::path> getSupportedArtistInfoFiles();
-    ArtistInfo parseArtistInfo(std::istream& is);
-} // namespace lms::metadata
+} // namespace lms::scanner

src/libs/services/scanner/impl/types/Lyrics.hpp

@@ -20,16 +20,11 @@
 #pragma once
 
 #include <chrono>
-#include <filesystem>
-#include <iosfwd>
 #include <map>
-#include <span>
 #include <string>
 #include <vector>
 
-#include "metadata/Exception.hpp"
-
-namespace lms::metadata
+namespace lms::scanner
 {
     struct Lyrics
     {
@@ -42,13 +37,4 @@ namespace lms::metadata
         std::map<std::chrono::milliseconds, std::string> synchronizedLines;
         std::vector<std::string> unsynchronizedLines;
     };
-
-    class LyricsException : public metadata::Exception
-    {
-    public:
-        using metadata::Exception::Exception;
-    };
-
-    std::span<const std::filesystem::path> getSupportedLyricsFileExtensions();
-    Lyrics parseLyrics(std::istream& is);
-} // namespace lms::metadata
+} // namespace lms::scanner

src/libs/services/scanner/impl/types/PlayList.hpp

@@ -20,19 +20,14 @@
 #pragma once
 
 #include <filesystem>
-#include <iosfwd>
-#include <span>
 #include <string>
 #include <vector>
 
-namespace lms::metadata
+namespace lms::scanner
 {
     struct PlayList
     {
         std::string name;
         std::vector<std::filesystem::path> files;
     };
-
-    std::span<const std::filesystem::path> getSupportedPlayListFileExtensions();
-    PlayList parsePlayList(std::istream& is);
-} // namespace lms::metadata
+} // namespace lms::scanner

src/libs/services/scanner/impl/types/TrackMetadata.hpp

@@ -19,11 +19,8 @@
 
 #pragma once
 
-#include <chrono>
 #include <map>
 #include <optional>
-#include <set>
-#include <span>
 #include <string>
 #include <string_view>
 #include <vector>
@@ -31,9 +28,9 @@
 #include "core/PartialDateTime.hpp"
 #include "core/UUID.hpp"
 
-#include "Lyrics.hpp"
+#include "types/Lyrics.hpp"
 
-namespace lms::metadata
+namespace lms::scanner
 {
     using Tags = std::map<std::string /* type */, std::vector<std::string> /* values */>;
 
@@ -94,15 +91,6 @@ namespace lms::metadata
         }
     };
 
-    struct AudioProperties
-    {
-        std::size_t bitrate{};
-        std::size_t bitsPerSample{};
-        std::size_t channelCount{};
-        std::chrono::milliseconds duration{};
-        std::size_t sampleRate{};
-    };
-
     struct Track
     {
         enum class Advisory
@@ -111,7 +99,7 @@ namespace lms::metadata
             Explicit,
             Clean,
         };
-        AudioProperties audioProperties;
+
         std::optional<core::UUID> mbid;
         std::optional<core::UUID> recordingMBID;
         std::string title;
@@ -143,96 +131,4 @@ namespace lms::metadata
         std::vector<Artist> producerArtists;
         std::vector<Artist> remixerArtists;
     };
-
-    struct Image
-    {
-        // See TagLib types (based on ID3v2 APIC types)
-        enum class Type
-        {
-            // No information
-            Unknown,
-            // A type not enumerated below
-            Other,
-            // 32x32 PNG image that should be used as the file icon
-            FileIcon,
-            // File icon of a different size or format
-            OtherFileIcon,
-            // Front cover image of the album
-            FrontCover,
-            // Back cover image of the album
-            BackCover,
-            // Inside leaflet page of the album
-            LeafletPage,
-            // Image from the album itself
-            Media,
-            // Picture of the lead artist or soloist
-            LeadArtist,
-            // Picture of the artist or performer
-            Artist,
-            // Picture of the conductor
-            Conductor,
-            // Picture of the band or orchestra
-            Band,
-            // Picture of the composer
-            Composer,
-            // Picture of the lyricist or text writer
-            Lyricist,
-            // Picture of the recording location or studio
-            RecordingLocation,
-            // Picture of the artists during recording
-            DuringRecording,
-            // Picture of the artists during performance
-            DuringPerformance,
-            // Picture from a movie or video related to the track
-            MovieScreenCapture,
-            // Picture of a large, coloured fish
-            ColouredFish,
-            // Illustration related to the track
-            Illustration,
-            // Logo of the band or performer
-            BandLogo,
-            // Logo of the publisher (record company)
-            PublisherLogo
-        };
-
-        Type type{ Type::Unknown };
-        std::string mimeType{ "application/octet-stream" };
-        std::string description;
-        std::span<const std::byte> data;
-    };
-
-    enum class ParserBackend
-    {
-        TagLib,
-        AvFormat,
-    };
-
-    enum class ParserReadStyle
-    {
-        Fast,
-        Average,
-        Accurate,
-    };
-
-    struct SortByLengthDesc
-    {
-        bool operator()(const std::string& a, const std::string& b) const
-        {
-            if (a.length() != b.length())
-                return a.length() > b.length();
-            return a < b; // Break ties using lexicographical order
-        }
-    };
-
-    using WhiteList = std::set<std::string, SortByLengthDesc>;
-    struct AudioFileParserParameters
-    {
-        ParserBackend backend{ ParserBackend::TagLib };
-        ParserReadStyle readStyle{ ParserReadStyle::Average };
-        std::vector<std::string> artistTagDelimiters;
-        WhiteList artistsToNotSplit;
-        std::vector<std::string> defaultTagDelimiters;
-        std::vector<std::string> userExtraTags;
-        bool debug{};
-    };
-} // namespace lms::metadata
+} // namespace lms::scanner

src/libs/services/scanner/test/ArtistInfo.cpp

@@ -20,9 +20,9 @@
 
 #include <gtest/gtest.h>
 
-#include "metadata/ArtistInfo.hpp"
+#include "scanners/artistinfo/ArtistInfoParser.hpp"
 
-namespace lms::metadata::tests
+namespace lms::scanner::tests
 {
     TEST(ArtistInfo, basic)
     {
@@ -112,4 +112,4 @@ He moved from the UK to Montreal in 1984 to become resident DJ at a number of cl
         ASSERT_EQ(artistInfo.sortName, "Artist, My");
         ASSERT_EQ(artistInfo.disambiguation, "My Artist");
     }
-} // namespace lms::metadata::tests
+} // namespace lms::scanner::tests

src/libs/services/scanner/test/AudioFileUtils.cpp

@@ -20,9 +20,9 @@
 
 #include <gtest/gtest.h>
 
-#include "Utils.hpp"
+#include "scanners/audiofile/Utils.hpp"
 
-namespace lms::metadata::utils::tests
+namespace lms::scanner::utils::tests
 {
     TEST(MetaData, parseDate)
     {
@@ -149,4 +149,4 @@ namespace lms::metadata::utils::tests
             EXPECT_EQ(performer.role, testCase.expectedRole) << " str was '" << testCase.str << "'";
         }
     }
-} // namespace lms::metadata::utils::tests
+} // namespace lms::scanner::utils::tests

src/libs/services/scanner/test/CMakeLists.txt

@@ -0,0 +1,25 @@
+include(GoogleTest)
+
+add_executable(test-scanner
+	ArtistInfo.cpp
+	AudioFileUtils.cpp
+	Lyrics.cpp
+	PlayList.cpp
+	Scanner.cpp
+	TrackMetadataParser.cpp
+	)
+
+target_include_directories(test-scanner PRIVATE
+	../impl
+	)
+
+target_link_libraries(test-scanner PRIVATE
+	lmsscanner
+	lmsaudio
+	GTest::GTest
+	)
+
+if (NOT CMAKE_CROSSCOMPILING)
+	gtest_discover_tests(test-scanner)
+endif()
+

src/libs/services/scanner/test/Lyrics.cpp

@@ -20,9 +20,9 @@
 
 #include <gtest/gtest.h>
 
-#include "metadata/Lyrics.hpp"
+#include "scanners/lyrics/LyricsParser.hpp"
 
-namespace lms::metadata::tests
+namespace lms::scanner::tests
 {
     using namespace std::chrono_literals;
 
@@ -397,4 +397,4 @@ I, I just woke up from a dream
         EXPECT_EQ(lyrics.unsynchronizedLines[3], "I, I just woke up from a dream");
         EXPECT_EQ(lyrics.unsynchronizedLines[4], "");
     }
-} // namespace lms::metadata::tests
+} // namespace lms::scanner::tests

src/libs/services/scanner/test/PlayList.cpp

@@ -21,11 +21,11 @@
 #include <gtest/gtest.h>
 #include <sstream>
 
-#include "metadata/PlayList.hpp"
+#include "scanners/playlist/PlayListParser.hpp"
 
-namespace lms::metadata::tests
+namespace lms::scanner::tests
 {
-    TEST(PlayList, basic)
+    TEST(Scanner, playlist)
     {
         std::istringstream is{ R"(#EXTM3U
 #PLAYLIST:My super playlist  
@@ -53,7 +53,7 @@ one to be/../one to be/normalized/foo.mp3)" };
         EXPECT_EQ(playlist.files[5], "one to be/normalized/foo.mp3");
     }
 
-    TEST(PlayList, UTF8_bom)
+    TEST(Scanner, playlist_UTF8_bom)
     {
         const unsigned char content[] = { 0xEF, 0xBB, 0xBF, '#', 'E', 'X', 'T', 'M', '3', 'U', '\r', '\n', '\r', '\n', '.', '.', '/', 't', 'e', 's', 't', '.', 'm', 'p', '3', '\r', '\n' };
         std::istringstream is{ std::string(reinterpret_cast<const char*>(content), sizeof(content)) };
@@ -64,4 +64,4 @@ one to be/../one to be/normalized/foo.mp3)" };
         EXPECT_EQ(playlist.files[0], "../test.mp3");
     }
 
-} // namespace lms::metadata::tests
+} // namespace lms::scanner::tests

src/libs/services/scanner/test/Scanner.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2021 Emeric Poupon
+ * Copyright (C) 2025 Emeric Poupon
  *
  * This file is part of LMS.
  *

src/libs/services/scanner/test/TestTagReader.hpp

@@ -21,22 +21,14 @@
 #include <memory>
 #include <vector>
 
-#include "ITagReader.hpp"
+#include "audio/ITagReader.hpp"
 
-namespace lms::metadata::tests
+namespace lms::scanner::tests
 {
-    class TestTagReader : public ITagReader
+    class TestTagReader : public audio::ITagReader
     {
     public:
-        static constexpr AudioProperties audioProperties{
-            .bitrate = 128000,
-            .bitsPerSample = 16,
-            .channelCount = 2,
-            .duration = std::chrono::seconds{ 180 },
-            .sampleRate = 44000,
-        };
-
-        using Tags = std::unordered_map<TagType, std::vector<std::string_view>>;
+        using Tags = std::unordered_map<audio::TagType, std::vector<std::string_view>>;
         using Performers = std::unordered_map<std::string_view /*role*/, std::vector<std::string_view> /*names*/>;
         using ExtraUserTags = std::unordered_map<std::string_view, std::vector<std::string_view>>;
         using LyricsTags = std::unordered_map<std::string_view /*language*/, std::string_view /*contents*/>;
@@ -63,7 +55,7 @@ namespace lms::metadata::tests
             _lyricsTags = std::move(lyricsTags);
         }
 
-        void visitTagValues(TagType tag, TagValueVisitor visitor) const override
+        void visitTagValues(audio::TagType tag, TagValueVisitor visitor) const override
         {
             auto itValues{ _tags.find(tag) };
             if (itValues != std::cend(_tags))
@@ -97,8 +89,6 @@ namespace lms::metadata::tests
                 visitor(language, lyrics);
         }
 
-        const AudioProperties& getAudioProperties() const override { return audioProperties; }
-
     private:
         const Tags _tags;
         Performers _performers;
@@ -106,8 +96,10 @@ namespace lms::metadata::tests
         LyricsTags _lyricsTags;
     };
 
-    inline std::unique_ptr<ITagReader> createDefaultPopulatedTestTagReader()
+    inline std::unique_ptr<audio::ITagReader> createDefaultPopulatedTestTagReader()
     {
+        using namespace audio;
+
         std::unique_ptr<TestTagReader> testTags{ std::make_unique<TestTagReader>(
             TestTagReader::Tags{
                 { TagType::AcoustID, { "e987a441-e134-4960-8019-274eddacc418" } },
@@ -168,4 +160,4 @@ namespace lms::metadata::tests
 
         return testTags;
     }
-} // namespace lms::metadata::tests
+} // namespace lms::scanner::tests

src/libs/services/scanner/test/TrackMetadataParser.cpp

@@ -0,0 +1,916 @@
+/*
+ * Copyright (C) 2024 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <vector>
+
+#include <gtest/gtest.h>
+
+#include <Wt/WTime.h>
+
+#include "scanners/audiofile/TrackMetadataParser.hpp"
+
+#include "TestTagReader.hpp"
+
+namespace lms::scanner::tests
+{
+    TEST(TrackMetadataParser, generalTest)
+    {
+        TrackMetadataParser::Parameters params;
+        params.userExtraTags = { "MY_AWESOME_TAG_A", "MY_AWESOME_TAG_B", "MY_AWESOME_MISSING_TAG" };
+
+        TrackMetadataParser parser{ params };
+        std::unique_ptr<audio::ITagReader> testTags{ createDefaultPopulatedTestTagReader() };
+
+        const Track track{ parser.parseTrackMetaData(*testTags) };
+
+        EXPECT_EQ(track.acoustID, core::UUID::fromString("e987a441-e134-4960-8019-274eddacc418"));
+        ASSERT_TRUE(track.advisory.has_value());
+        EXPECT_EQ(track.advisory.value(), Track::Advisory::Clean);
+        EXPECT_EQ(track.artistDisplayName, "MyArtist1 & MyArtist2");
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "MyArtist1");
+        EXPECT_EQ(track.artists[0].sortName, "MyArtists1SortName");
+        EXPECT_EQ(track.artists[0].mbid, core::UUID::fromString("9d2e0c8c-8c5e-4372-a061-590955eaeaae"));
+        EXPECT_EQ(track.artists[1].name, "MyArtist2");
+        EXPECT_EQ(track.artists[1].sortName, "MyArtists2SortName");
+        EXPECT_EQ(track.artists[1].mbid, core::UUID::fromString("5e2cf87f-c8d7-4504-8a86-954dc0840229"));
+        ASSERT_EQ(track.comments.size(), 2);
+        EXPECT_EQ(track.comments[0], "Comment1");
+        EXPECT_EQ(track.comments[1], "Comment2");
+        ASSERT_EQ(track.composerArtists.size(), 2);
+        EXPECT_EQ(track.composerArtists[0].name, "MyComposer1");
+        EXPECT_EQ(track.composerArtists[0].sortName, "MyComposerSortOrder1");
+        EXPECT_EQ(track.composerArtists[1].name, "MyComposer2");
+        EXPECT_EQ(track.composerArtists[1].sortName, "MyComposerSortOrder2");
+        ASSERT_EQ(track.conductorArtists.size(), 2);
+        EXPECT_EQ(track.conductorArtists[0].name, "MyConductor1");
+        EXPECT_EQ(track.conductorArtists[1].name, "MyConductor2");
+        EXPECT_EQ(track.copyright, "MyCopyright");
+        EXPECT_EQ(track.copyrightURL, "MyCopyrightURL");
+        ASSERT_TRUE(track.date.isValid());
+        EXPECT_EQ(track.date.getYear(), 2020);
+        EXPECT_EQ(track.date.getMonth(), 3);
+        EXPECT_EQ(track.date.getDay(), 4);
+        ASSERT_EQ(track.genres.size(), 2);
+        EXPECT_EQ(track.genres[0], "Genre1");
+        EXPECT_EQ(track.genres[1], "Genre2");
+        ASSERT_EQ(track.groupings.size(), 2);
+        EXPECT_EQ(track.groupings[0], "Grouping1");
+        EXPECT_EQ(track.groupings[1], "Grouping2");
+        ASSERT_EQ(track.languages.size(), 2);
+        EXPECT_EQ(track.languages[0], "Language1");
+        EXPECT_EQ(track.languages[1], "Language2");
+        ASSERT_EQ(track.lyricistArtists.size(), 2);
+        EXPECT_EQ(track.lyricistArtists[0].name, "MyLyricist1");
+        EXPECT_EQ(track.lyricistArtists[1].name, "MyLyricist2");
+        ASSERT_EQ(track.lyrics.size(), 1);
+        EXPECT_EQ(track.lyrics.front().language, "eng");
+        ASSERT_EQ(track.lyrics.front().synchronizedLines.size(), 2);
+        ASSERT_TRUE(track.lyrics.front().synchronizedLines.contains(std::chrono::milliseconds{ 0 }));
+        EXPECT_EQ(track.lyrics.front().synchronizedLines.find(std::chrono::milliseconds{ 0 })->second, "First line");
+        ASSERT_TRUE(track.lyrics.front().synchronizedLines.contains(std::chrono::milliseconds{ 1000 }));
+        EXPECT_EQ(track.lyrics.front().synchronizedLines.find(std::chrono::milliseconds{ 1000 })->second, "Second line");
+        ASSERT_TRUE(track.mbid.has_value());
+        EXPECT_EQ(track.mbid.value(), core::UUID::fromString("0afb190a-6735-46df-a16d-199f48206e4a"));
+        ASSERT_EQ(track.mixerArtists.size(), 2);
+        EXPECT_EQ(track.mixerArtists[0].name, "MyMixer1");
+        EXPECT_EQ(track.mixerArtists[1].name, "MyMixer2");
+        ASSERT_EQ(track.moods.size(), 2);
+        EXPECT_EQ(track.moods[0], "Mood1");
+        EXPECT_EQ(track.moods[1], "Mood2");
+        ASSERT_TRUE(track.originalDate.isValid());
+        EXPECT_EQ(track.originalDate.getYear(), 2019);
+        EXPECT_EQ(track.originalDate.getMonth(), 2);
+        EXPECT_EQ(track.originalDate.getDay(), 3);
+        ASSERT_TRUE(track.originalYear.has_value());
+        EXPECT_EQ(track.originalYear.value(), 2019);
+        ASSERT_TRUE(track.performerArtists.contains("Rolea"));
+        ASSERT_EQ(track.performerArtists.at("Rolea").size(), 2);
+        EXPECT_EQ(track.performerArtists.at("Rolea")[0].name, "MyPerformer1ForRoleA");
+        EXPECT_EQ(track.performerArtists.at("Rolea")[1].name, "MyPerformer2ForRoleA");
+        ASSERT_EQ(track.performerArtists.at("Roleb").size(), 2);
+        EXPECT_EQ(track.performerArtists.at("Roleb")[0].name, "MyPerformer1ForRoleB");
+        EXPECT_EQ(track.performerArtists.at("Roleb")[1].name, "MyPerformer2ForRoleB");
+        ASSERT_TRUE(track.position.has_value());
+        EXPECT_EQ(track.position.value(), 7);
+        ASSERT_EQ(track.producerArtists.size(), 2);
+        EXPECT_EQ(track.producerArtists[0].name, "MyProducer1");
+        EXPECT_EQ(track.producerArtists[1].name, "MyProducer2");
+        ASSERT_TRUE(track.recordingMBID.has_value());
+        EXPECT_EQ(track.recordingMBID.value(), core::UUID::fromString("bd3fc666-89de-4ac8-93f6-2dbf028ad8d5"));
+        ASSERT_TRUE(track.replayGain.has_value());
+        EXPECT_FLOAT_EQ(track.replayGain.value(), -0.33);
+        ASSERT_EQ(track.remixerArtists.size(), 2);
+        EXPECT_EQ(track.remixerArtists[0].name, "MyRemixer1");
+        EXPECT_EQ(track.remixerArtists[1].name, "MyRemixer2");
+        EXPECT_EQ(track.title, "MyTitle");
+        ASSERT_EQ(track.userExtraTags.at("MY_AWESOME_TAG_A").size(), 2);
+        EXPECT_EQ(track.userExtraTags.at("MY_AWESOME_TAG_A")[0], "MyTagValue1ForTagA");
+        EXPECT_EQ(track.userExtraTags.at("MY_AWESOME_TAG_A")[1], "MyTagValue2ForTagA");
+        ASSERT_EQ(track.userExtraTags.at("MY_AWESOME_TAG_B").size(), 2);
+        EXPECT_EQ(track.userExtraTags.at("MY_AWESOME_TAG_B")[0], "MyTagValue1ForTagB");
+        EXPECT_EQ(track.userExtraTags.at("MY_AWESOME_TAG_B")[1], "MyTagValue2ForTagB");
+
+        // Medium
+        ASSERT_TRUE(track.medium.has_value());
+        EXPECT_EQ(track.medium->media, "CD");
+        EXPECT_EQ(track.medium->name, "MySubtitle");
+        ASSERT_TRUE(track.medium->position.has_value());
+        EXPECT_EQ(track.medium->position.value(), 2);
+        ASSERT_TRUE(track.medium->replayGain.has_value());
+        EXPECT_FLOAT_EQ(track.medium->replayGain.value(), -0.5);
+        ASSERT_TRUE(track.medium->trackCount.has_value());
+        EXPECT_EQ(track.medium->trackCount.value(), 12);
+
+        // Release
+        ASSERT_TRUE(track.medium->release.has_value());
+        const Release& release{ track.medium->release.value() };
+        EXPECT_EQ(release.artistDisplayName, "MyAlbumArtist1 & MyAlbumArtist2");
+        ASSERT_EQ(release.artists.size(), 2);
+        EXPECT_EQ(release.artists[0].name, "MyAlbumArtist1");
+        EXPECT_EQ(release.artists[0].sortName, "MyAlbumArtists1SortName");
+        EXPECT_EQ(release.artists[0].mbid, core::UUID::fromString("6fbf097c-1487-43e8-874b-50dd074398a7"));
+        EXPECT_EQ(release.artists[1].name, "MyAlbumArtist2");
+        EXPECT_EQ(release.artists[1].sortName, "MyAlbumArtists2SortName");
+        EXPECT_EQ(release.artists[1].mbid, core::UUID::fromString("5ed3d6b3-2aed-4a03-828c-3c4d4f7406e1"));
+        EXPECT_TRUE(release.isCompilation);
+        EXPECT_EQ(release.barcode, "MyBarcode");
+        ASSERT_EQ(release.labels.size(), 2);
+        EXPECT_EQ(release.labels[0], "Label1");
+        EXPECT_EQ(release.labels[1], "Label2");
+        ASSERT_TRUE(release.mbid.has_value());
+        EXPECT_EQ(release.mbid.value(), core::UUID::fromString("3fa39992-b786-4585-a70e-85d5cc15ef69"));
+        EXPECT_EQ(release.groupMBID.value(), core::UUID::fromString("5b1a5a44-8420-4426-9b86-d25dc8d04838"));
+        EXPECT_EQ(release.mediumCount, 3);
+        EXPECT_EQ(release.name, "MyAlbum");
+        EXPECT_EQ(release.sortName, "MyAlbumSortName");
+        EXPECT_EQ(release.comment, "MyAlbumComment");
+        ASSERT_EQ(release.countries.size(), 2);
+        EXPECT_EQ(release.countries[0], "MyCountry1");
+        EXPECT_EQ(release.countries[1], "MyCountry2");
+        {
+            std::vector<std::string> expectedReleaseTypes{ "Album", "Compilation" };
+            EXPECT_EQ(release.releaseTypes, expectedReleaseTypes);
+        }
+    }
+
+    TEST(TrackMetadataParser, trim)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Genre, { "Genre1 ", " Genre2", " Genre3 " } },
+            }
+        };
+
+        const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.genres.size(), 3);
+        EXPECT_EQ(track.genres[0], "Genre1");
+        EXPECT_EQ(track.genres[1], "Genre2");
+        EXPECT_EQ(track.genres[2], "Genre3");
+    }
+
+    TEST(TrackMetadataParser, customDelimiters)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Album, { "MyAlbum" } },
+                { audio::TagType::AlbumArtist, { "AlbumArtist1 /  AlbumArtist2" } },
+                { audio::TagType::Artist, { " Artist1 / Artist2 feat. Artist3  " } },
+                { audio::TagType::Genre, { "Genre1 ;  Genre2" } },
+                { audio::TagType::Language, { " Lang1/Lang2 / Lang3" } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.defaultTagDelimiters = { " ; ", "/" };
+        params.artistTagDelimiters = { " / ", " feat. " };
+        TrackMetadataParser parser{ params };
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 3);
+        EXPECT_EQ(track.artists[0].name, "Artist1");
+        EXPECT_EQ(track.artists[1].name, "Artist2");
+        EXPECT_EQ(track.artists[2].name, "Artist3");
+        EXPECT_EQ(track.artistDisplayName, "Artist1, Artist2, Artist3"); // reconstruct artist display name since a custom delimiter is hit
+        ASSERT_EQ(track.genres.size(), 2);
+        EXPECT_EQ(track.genres[0], "Genre1");
+        EXPECT_EQ(track.genres[1], "Genre2");
+        ASSERT_EQ(track.languages.size(), 3);
+        EXPECT_EQ(track.languages[0], "Lang1");
+        EXPECT_EQ(track.languages[1], "Lang2");
+        EXPECT_EQ(track.languages[2], "Lang3");
+
+        // Medium
+        ASSERT_TRUE(track.medium.has_value());
+
+        // Release
+        ASSERT_TRUE(track.medium->release.has_value());
+        EXPECT_EQ(track.medium->release->name, "MyAlbum");
+        ASSERT_EQ(track.medium->release->artists.size(), 2);
+        EXPECT_EQ(track.medium->release->artists[0].name, "AlbumArtist1");
+        EXPECT_EQ(track.medium->release->artists[1].name, "AlbumArtist2");
+        EXPECT_EQ(track.medium->release->artistDisplayName, "AlbumArtist1, AlbumArtist2");
+    }
+
+    TEST(TrackMetadataParser, customArtistDelimiters_whitelist)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Album, { "MyAlbum" } },
+                { audio::TagType::AlbumArtist, { "  AC/DC " } },
+                { audio::TagType::Artist, { "AC/DC  " } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { "/" };
+        params.artistsToNotSplit = { "AC/DC" };
+        TrackMetadataParser parser{ params };
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 1);
+        EXPECT_EQ(track.artists[0].name, "AC/DC");
+        EXPECT_EQ(track.artistDisplayName, "AC/DC");
+        ASSERT_TRUE(track.medium.has_value());
+        ASSERT_TRUE(track.medium->release.has_value());
+        EXPECT_EQ(track.medium->release->name, "MyAlbum");
+        ASSERT_EQ(track.medium->release->artists.size(), 1);
+        EXPECT_EQ(track.medium->release->artists[0].name, "AC/DC");
+        EXPECT_EQ(track.medium->release->artistDisplayName, "AC/DC");
+    }
+
+    TEST(TrackMetadataParser, customArtistDelimiters_whitelist_multi_artists)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "AC/DC and MyArtist" } },
+                { audio::TagType::Artists, { "AC/DC", "MyArtist" } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { "/" };
+        params.artistsToNotSplit = { "  AC/DC " };
+        TrackMetadataParser parser{ params };
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "AC/DC");
+        EXPECT_EQ(track.artists[1].name, "MyArtist");
+        EXPECT_EQ(track.artistDisplayName, "AC/DC, MyArtist"); // Reconstructed since this use case is not handled
+    }
+
+    TEST(TrackMetadataParser, customArtistDelimiters_whitelist_multi_separators_first)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "AC/DC;MyArtist" } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { "/", ";" };
+        params.artistsToNotSplit = { "AC/DC" };
+        TrackMetadataParser parser{ params };
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "AC/DC");
+        EXPECT_EQ(track.artists[1].name, "MyArtist");
+        EXPECT_EQ(track.artistDisplayName, "AC/DC, MyArtist"); // Reconstructed since this use case is not handled
+    }
+
+    TEST(TrackMetadataParser, customArtistDelimiters_whitelist_multi_separators_middle)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { " MyArtist1; AC/DC  ; MyArtist2   " } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { "/", ";" };
+        params.artistsToNotSplit = { "AC/DC" };
+        TrackMetadataParser parser{ params };
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 3);
+        EXPECT_EQ(track.artists[0].name, "MyArtist1");
+        EXPECT_EQ(track.artists[1].name, "AC/DC");
+        EXPECT_EQ(track.artists[2].name, "MyArtist2");
+        EXPECT_EQ(track.artistDisplayName, "MyArtist1, AC/DC, MyArtist2"); // Reconstructed since this use case is not handled
+    }
+
+    TEST(TrackMetadataParser, customArtistDelimiters_whitelist_multi_separators_last)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "  AC/DC; MyArtist" } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { ";", "/" };
+        params.artistsToNotSplit = { "AC/DC" };
+        TrackMetadataParser parser{ params };
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "AC/DC");
+        EXPECT_EQ(track.artists[1].name, "MyArtist");
+        EXPECT_EQ(track.artistDisplayName, "AC/DC, MyArtist"); // Reconstructed since this use case is not handled
+    }
+
+    TEST(TrackMetadataParser, customArtistDelimiters_whitelist_longest_first)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "  AC/DC; MyArtist" } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { ";", "/" };
+        params.artistsToNotSplit = { "AC", "DC", "AC/DC" };
+        TrackMetadataParser parser{ params };
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "AC/DC");
+        EXPECT_EQ(track.artists[1].name, "MyArtist");
+        EXPECT_EQ(track.artistDisplayName, "AC/DC, MyArtist"); // Reconstructed since this use case is not handled
+    }
+
+    TEST(TrackMetadataParser, customArtistDelimiters_whitelist_partial_begin)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "  AC/DC; MyArtist" } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { "/" };
+        params.artistsToNotSplit = { "AC/DC" };
+        TrackMetadataParser parser{ params };
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 1);
+        EXPECT_EQ(track.artists[0].name, "AC/DC; MyArtist");
+        EXPECT_EQ(track.artistDisplayName, "AC/DC; MyArtist");
+    }
+
+    TEST(TrackMetadataParser, customArtistDelimiters_whitelist_partial_middle)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "  MyArtist1;  AC/DC ; MyArtist2" } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { "/" };
+        params.artistsToNotSplit = { "AC/DC" };
+        TrackMetadataParser parser{ params };
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 1);
+        EXPECT_EQ(track.artists[0].name, "MyArtist1;  AC/DC ; MyArtist2");
+        EXPECT_EQ(track.artistDisplayName, "MyArtist1;  AC/DC ; MyArtist2");
+    }
+
+    TEST(TrackMetadataParser, customArtistDelimiters_whitelist_partial_end)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "  MyArtist;  AC/DC " } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { "/" };
+        params.artistsToNotSplit = { "AC/DC" };
+        TrackMetadataParser parser{ params };
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 1);
+        EXPECT_EQ(track.artists[0].name, "MyArtist;  AC/DC");
+        EXPECT_EQ(track.artistDisplayName, "MyArtist;  AC/DC");
+    }
+
+    TEST(TrackMetadataParser, customDelimiters_foundInArtist)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "Artist1; Artist2" } },
+                { audio::TagType::Artists, { "Artist1", "Artist2" } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { "; " };
+        TrackMetadataParser parser{ params };
+
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "Artist1");
+        EXPECT_EQ(track.artists[1].name, "Artist2");
+        EXPECT_EQ(track.artistDisplayName, "Artist1, Artist2"); // reconstruct the display name since we hit a custom delimiter in Artist
+    }
+
+    TEST(TrackMetadataParser, customDelimiters_foundInArtists)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "Artist1 feat. Artist2" } },
+                { audio::TagType::Artists, { "Artist1; Artist2" } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { "; " };
+        TrackMetadataParser parser{ params };
+
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "Artist1");
+        EXPECT_EQ(track.artists[1].name, "Artist2");
+        EXPECT_EQ(track.artistDisplayName, "Artist1 feat. Artist2");
+    }
+
+    TEST(TrackMetadataParser, customDelimiters_notUsed)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "Artist1 & Artist2" } },
+                { audio::TagType::Artists, { "Artist1", "Artist2" } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { "; " };
+        TrackMetadataParser parser{ params };
+
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "Artist1");
+        EXPECT_EQ(track.artists[1].name, "Artist2");
+        EXPECT_EQ(track.artistDisplayName, "Artist1 & Artist2");
+    }
+
+    TEST(TrackMetadataParser, customDelimiters_onlyInArtist)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "Artist1 & Artist2" } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { " & " };
+        TrackMetadataParser parser{ params };
+
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "Artist1");
+        EXPECT_EQ(track.artists[1].name, "Artist2");
+        EXPECT_EQ(track.artistDisplayName, "Artist1, Artist2"); // reconstructed since a custom delimiter was hit for parsing
+    }
+
+    TEST(TrackMetadataParser, customDelimitersUsedForArtists)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artists, { "Artist1 & Artist2" } },
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { " & " };
+        TrackMetadataParser parser{ params };
+
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "Artist1");
+        EXPECT_EQ(track.artists[1].name, "Artist2");
+        EXPECT_EQ(track.artistDisplayName, "Artist1, Artist2"); // reconstructed since a custom delimiter was hit for parsing
+    }
+
+    TEST(TrackMetadataParser, noArtistInArtist)
+    {
+        const TestTagReader testTags{
+            {
+                // nothing in Artist!
+            }
+        };
+
+        const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 0);
+        EXPECT_EQ(track.artistDisplayName, "");
+    }
+
+    TEST(TrackMetadataParser, singleArtistInArtists)
+    {
+        const TestTagReader testTags{
+            {
+                // nothing in Artist!
+                { audio::TagType::Artists, { "Artist1" } },
+            }
+        };
+
+        const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 1);
+        EXPECT_EQ(track.artists[0].name, "Artist1");
+        EXPECT_EQ(track.artistDisplayName, "Artist1");
+    }
+
+    TEST(TrackMetadataParser, multipleArtistsInArtist)
+    {
+        const TestTagReader testTags{
+            {
+                // nothing in Artists!
+                { audio::TagType::Artist, { "Artist1", "Artist2" } },
+            }
+        };
+
+        const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "Artist1");
+        EXPECT_EQ(track.artists[1].name, "Artist2");
+        EXPECT_EQ(track.artistDisplayName, "Artist1, Artist2"); // reconstruct artist display name since multiple entries are found
+    }
+
+    TEST(TrackMetadataParser, multipleArtistsInArtists)
+    {
+        const TestTagReader testTags{
+            {
+                // nothing in Artist!
+                { audio::TagType::Artists, { "Artist1", "Artist2" } },
+            }
+        };
+
+        const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "Artist1");
+        EXPECT_EQ(track.artists[1].name, "Artist2");
+        EXPECT_EQ(track.artistDisplayName, "Artist1, Artist2"); // reconstruct artist display name since multiple entries are found and nothing is set in artist
+    }
+
+    TEST(TrackMetadataParser, multipleArtistsInArtistsWithEndDelimiter)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "Artist1 & (CV. Artist2)" } },
+                { audio::TagType::Artists, { "Artist1", "Artist2" } },
+            }
+        };
+
+        const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "Artist1");
+        EXPECT_EQ(track.artists[1].name, "Artist2");
+        EXPECT_EQ(track.artistDisplayName, "Artist1 & (CV. Artist2)");
+    }
+
+    TEST(TrackMetadataParser, singleArtistInAlbumArtists)
+    {
+        const TestTagReader testTags{
+            {
+                // nothing in AlbumArtist!
+                { audio::TagType::Album, { "MyAlbum" } },
+                { audio::TagType::AlbumArtists, { "Artist1" } },
+            }
+        };
+
+        const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+        ASSERT_TRUE(track.medium);
+        ASSERT_TRUE(track.medium->release);
+        ASSERT_EQ(track.medium->release->artists.size(), 1);
+        EXPECT_EQ(track.medium->release->artists[0].name, "Artist1");
+        EXPECT_EQ(track.medium->release->artistDisplayName, "Artist1");
+    }
+
+    TEST(TrackMetadataParser, multipleArtistsInAlbumArtist)
+    {
+        const TestTagReader testTags{
+            {
+                // nothing in AlbumArtists!
+                { audio::TagType::Album, { "MyAlbum" } },
+                { audio::TagType::AlbumArtist, { "Artist1", "Artist2" } },
+            }
+        };
+
+        const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+        ASSERT_TRUE(track.medium);
+        ASSERT_TRUE(track.medium->release);
+        ASSERT_EQ(track.medium->release->artists.size(), 2);
+        EXPECT_EQ(track.medium->release->artists[0].name, "Artist1");
+        EXPECT_EQ(track.medium->release->artists[1].name, "Artist2");
+        EXPECT_EQ(track.medium->release->artistDisplayName, "Artist1, Artist2"); // reconstruct artist display name since multiple entries are found
+    }
+
+    TEST(TrackMetadataParser, multipleArtistsInAlbumArtists_displayName)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Album, { "MyAlbum" } },
+                { audio::TagType::AlbumArtist, { "Artist1 & Artist2" } },
+                { audio::TagType::AlbumArtists, { "Artist1", "Artist2" } },
+            }
+        };
+
+        const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+        ASSERT_TRUE(track.medium);
+        ASSERT_TRUE(track.medium->release);
+        ASSERT_EQ(track.medium->release->artists.size(), 2);
+        EXPECT_EQ(track.medium->release->artists[0].name, "Artist1");
+        EXPECT_EQ(track.medium->release->artists[1].name, "Artist2");
+        EXPECT_EQ(track.medium->release->artistDisplayName, "Artist1 & Artist2");
+    }
+
+    TEST(TrackMetadataParser, multipleArtistsInAlbumArtists)
+    {
+        const TestTagReader testTags{
+            {
+                // nothing in AlbumArtist!
+                { audio::TagType::Album, { "MyAlbum" } },
+                { audio::TagType::AlbumArtists, { "Artist1", "Artist2" } },
+            }
+        };
+
+        const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+        ASSERT_TRUE(track.medium);
+        ASSERT_TRUE(track.medium->release);
+        ASSERT_EQ(track.medium->release->artists.size(), 2);
+        EXPECT_EQ(track.medium->release->artists[0].name, "Artist1");
+        EXPECT_EQ(track.medium->release->artists[1].name, "Artist2");
+        EXPECT_EQ(track.medium->release->artistDisplayName, "Artist1, Artist2"); // reconstruct artist display name since multiple entries are found and nothing is set in artist
+    }
+
+    TEST(TrackMetadataParser, multipleArtistsInArtistsButNotAllMBIDs)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "Artist1 & Artist2" } },
+                { audio::TagType::Artists, { "Artist1", "Artist2" } },
+                { audio::TagType::MusicBrainzArtistID, { "dd2180a2-a350-4012-b332-5d66102fa2c6" } }, // only one => no mbid will be added
+            }
+        };
+
+        const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "Artist1");
+        EXPECT_EQ(track.artists[0].mbid, std::nullopt);
+        EXPECT_EQ(track.artists[1].name, "Artist2");
+        EXPECT_EQ(track.artists[1].mbid, std::nullopt);
+        EXPECT_EQ(track.artistDisplayName, "Artist1 & Artist2");
+    }
+
+    TEST(TrackMetadataParser, multipleArtistsInArtistsButNotAllMBIDs_customDelimiters)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Artist, { "Artist1 / Artist2" } },
+                { audio::TagType::MusicBrainzArtistID, { "dd2180a2-a350-4012-b332-5d66102fa2c6" } }, // only one => no mbid will be added
+            }
+        };
+
+        TrackMetadataParser::Parameters params;
+        params.artistTagDelimiters = { " / " };
+        TrackMetadataParser parser{ params };
+        const Track track{ parser.parseTrackMetaData(testTags) };
+
+        ASSERT_EQ(track.artists.size(), 2);
+        EXPECT_EQ(track.artists[0].name, "Artist1");
+        EXPECT_EQ(track.artists[0].mbid, std::nullopt);
+        EXPECT_EQ(track.artists[1].name, "Artist2");
+        EXPECT_EQ(track.artists[1].mbid, std::nullopt);
+        EXPECT_EQ(track.artistDisplayName, "Artist1, Artist2"); // reconstruct the artist display name
+    }
+
+    TEST(TrackMetadataParser, release_sortNameFallback)
+    {
+        const TestTagReader testTags{
+            {
+                { audio::TagType::Album, { "MyAlbum" } },
+                // No AlbumSortOrder
+            }
+        };
+        const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+        ASSERT_TRUE(track.medium.has_value());
+        ASSERT_TRUE(track.medium->release.has_value());
+        EXPECT_EQ(track.medium->release->sortName, "MyAlbum");
+    }
+
+    TEST(TrackMetadataParser, artist_sortNameFallback)
+    {
+        {
+            const TestTagReader testTags{
+                {
+                    { audio::TagType::Artist, { "MyArtist" } },
+                    { audio::TagType::ArtistSortOrder, { "MyArtistSortName" } },
+                    // No ArtistSortOrder
+                }
+            };
+            const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+            ASSERT_EQ(track.artists.size(), 1);
+            EXPECT_EQ(track.artists[0].sortName, "MyArtistSortName");
+        }
+
+        {
+            const TestTagReader testTags{
+                {
+                    { audio::TagType::Artist, { "MyArtist" } },
+                    { audio::TagType::ArtistsSortOrder, { "MyArtistSortName" } },
+                    // No ArtistSortOrder
+                }
+            };
+            const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+            ASSERT_EQ(track.artists.size(), 1);
+            EXPECT_EQ(track.artists[0].sortName, "MyArtistSortName");
+        }
+
+        {
+            const TestTagReader testTags{
+                {
+                    { audio::TagType::Artist, { "MyArtist" } },
+                    { audio::TagType::ArtistSortOrder, { "MyArtistSortNameNotUsed" } },
+                    { audio::TagType::ArtistsSortOrder, { "MyArtistSortName" } },
+                    // No ArtistSortOrder
+                }
+            };
+            const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+            ASSERT_EQ(track.artists.size(), 1);
+            EXPECT_EQ(track.artists[0].sortName, "MyArtistSortName");
+        }
+    }
+
+    TEST(TrackMetadataParser, albumartist_sortNameFallback)
+    {
+        {
+            const TestTagReader testTags{
+                {
+                    { audio::TagType::Album, { "MyAlbum" } },
+                    { audio::TagType::AlbumArtist, { "MyArtist" } },
+                    { audio::TagType::AlbumArtistSortOrder, { "MyArtistSortName" } },
+                    // No ArtistSortOrder
+                }
+            };
+            const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+            ASSERT_TRUE(track.medium.has_value());
+            ASSERT_TRUE(track.medium->release.has_value());
+
+            const auto& artists{ track.medium->release->artists };
+            ASSERT_EQ(artists.size(), 1);
+            EXPECT_EQ(artists[0].sortName, "MyArtistSortName");
+        }
+
+        {
+            const TestTagReader testTags{
+                {
+                    { audio::TagType::Album, { "MyAlbum" } },
+                    { audio::TagType::AlbumArtist, { "MyArtist" } },
+                    { audio::TagType::AlbumArtistsSortOrder, { "MyArtistSortName" } },
+                    // No ArtistSortOrder
+                }
+            };
+            const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+            ASSERT_TRUE(track.medium.has_value());
+            ASSERT_TRUE(track.medium->release.has_value());
+
+            const auto& artists{ track.medium->release->artists };
+            ASSERT_EQ(artists.size(), 1);
+            EXPECT_EQ(artists[0].sortName, "MyArtistSortName");
+        }
+
+        {
+            const TestTagReader testTags{
+                {
+                    { audio::TagType::Album, { "MyAlbum" } },
+
+                    { audio::TagType::AlbumArtist, { "MyArtist" } },
+                    { audio::TagType::AlbumArtistSortOrder, { "MyArtistSortNameNotUsed" } },
+                    { audio::TagType::AlbumArtistsSortOrder, { "MyArtistSortName" } },
+                    // No ArtistSortOrder
+                }
+            };
+            const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+            ASSERT_TRUE(track.medium.has_value());
+            ASSERT_TRUE(track.medium->release.has_value());
+
+            const auto& artists{ track.medium->release->artists };
+            ASSERT_EQ(artists.size(), 1);
+            EXPECT_EQ(artists[0].sortName, "MyArtistSortName");
+        }
+    }
+
+    TEST(TrackMetadataParser, advisory)
+    {
+        auto doTest = [](std::string_view value, std::optional<Track::Advisory> expectedValue) {
+            const TestTagReader testTags{
+                {
+                    { audio::TagType::Advisory, { value } },
+                }
+            };
+
+            const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+            ASSERT_EQ(track.advisory.has_value(), expectedValue.has_value()) << "Value = '" << value << "'";
+            if (track.advisory.has_value())
+            {
+                EXPECT_EQ(track.advisory.value(), expectedValue);
+            }
+        };
+
+        doTest("0", Track::Advisory::Unknown);
+        doTest("1", Track::Advisory::Explicit);
+        doTest("4", Track::Advisory::Explicit);
+        doTest("2", Track::Advisory::Clean);
+        doTest("", std::nullopt);
+        doTest("3", std::nullopt);
+    }
+
+    TEST(TrackMetadataParser, encodingTime)
+    {
+        auto doTest = [](std::string_view value, core::PartialDateTime expectedValue) {
+            const TestTagReader testTags{
+                {
+                    { audio::TagType::EncodingTime, { value } },
+                }
+            };
+
+            const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+            ASSERT_EQ(track.encodingTime, expectedValue) << "Value = '" << value << "'";
+        };
+
+        doTest("", core::PartialDateTime{});
+        doTest("foo", core::PartialDateTime{});
+        doTest("2020-01-03T09:08:11.075", core::PartialDateTime{ 2020, 01, 03, 9, 8, 11 });
+        doTest("2020-01-03", core::PartialDateTime{ 2020, 01, 03 });
+        doTest("2020/01/03", core::PartialDateTime{ 2020, 01, 03 });
+    }
+
+    TEST(TrackMetadataParser, date)
+    {
+        auto doTest = [](std::string_view value, core::PartialDateTime expectedValue) {
+            const TestTagReader testTags{
+                {
+                    { audio::TagType::Date, { value } },
+                }
+            };
+
+            const Track track{ TrackMetadataParser{}.parseTrackMetaData(testTags) };
+
+            ASSERT_EQ(track.date, expectedValue) << "Value = '" << value << "'";
+        };
+
+        doTest("", core::PartialDateTime{});
+        doTest("foo", core::PartialDateTime{});
+        doTest("2020-01-03", core::PartialDateTime{ 2020, 01, 03 });
+        doTest("2020-01", core::PartialDateTime{ 2020, 1 });
+        doTest("2020", core::PartialDateTime{ 2020 });
+        doTest("2020/01/03", core::PartialDateTime{ 2020, 01, 03 });
+        doTest("2020/01", core::PartialDateTime{ 2020, 1 });
+        doTest("2020", core::PartialDateTime{ 2020 });
+    }
+} // namespace lms::scanner::tests

src/libs/services/transcoding/CMakeLists.txt

@@ -1,6 +1,6 @@
 add_library(lmstranscoding STATIC
-	impl/TranscodingResourceHandler.cpp
-	impl/TranscodingService.cpp
+	impl/TranscodeResourceHandler.cpp
+	impl/TranscodeService.cpp
 	)
 
 target_include_directories(lmstranscoding INTERFACE
@@ -13,7 +13,7 @@ target_include_directories(lmstranscoding PRIVATE
 	)
 
 target_link_libraries(lmstranscoding PRIVATE
-	lmsav
+	lmsaudio
 	)
 
 target_link_libraries(lmstranscoding PUBLIC

src/libs/services/transcoding/impl/TranscodeResourceHandler.cpp

@@ -17,42 +17,38 @@
  * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "TranscodingResourceHandler.hpp"
+#include "TranscodeResourceHandler.hpp"
 
-#include "av/Exception.hpp"
-#include "av/ITranscoder.hpp"
 #include "core/ILogger.hpp"
 
+#include "audio/Exception.hpp"
+#include "audio/ITranscoder.hpp"
+
 namespace lms::transcoding
 {
-    std::unique_ptr<core::IResourceHandler> createResourceHandler(const av::InputParameters& inputParameters, const av::OutputParameters& outputParameters, bool estimateContentLength)
-    {
-        return std::make_unique<TranscodingResourceHandler>(inputParameters, outputParameters, estimateContentLength);
-    }
-
     // TODO set some nice HTTP return code
 
-    TranscodingResourceHandler::TranscodingResourceHandler(const av::InputParameters& inputParameters, const av::OutputParameters& outputParameters, std::optional<std::size_t> estimatedContentLength)
+    ResourceHandler::ResourceHandler(const audio::TranscodeParameters& parameters, std::optional<std::size_t> estimatedContentLength)
         : _estimatedContentLength{ estimatedContentLength }
     {
         try
         {
-            _transcoder = av::createTranscoder(inputParameters, outputParameters);
+            _transcoder = createTranscoder(parameters);
 
             if (_estimatedContentLength)
                 LMS_LOG(TRANSCODING, DEBUG, "Estimated content length = " << *_estimatedContentLength);
             else
                 LMS_LOG(TRANSCODING, DEBUG, "Not using estimated content length");
         }
-        catch (av::Exception& e)
+        catch (audio::Exception& e)
         {
             LMS_LOG(TRANSCODING, ERROR, "Failed to create transcoder: " << e.what());
         }
     }
 
-    TranscodingResourceHandler::~TranscodingResourceHandler() = default;
+    ResourceHandler::~ResourceHandler() = default;
 
-    Wt::Http::ResponseContinuation* TranscodingResourceHandler::processRequest(const Wt::Http::Request& /*request*/, Wt::Http::Response& response)
+    Wt::Http::ResponseContinuation* ResourceHandler::processRequest(const Wt::Http::Request& /*request*/, Wt::Http::Response& response)
     {
         if (!_transcoder)
         {

src/libs/services/transcoding/impl/TranscodeResourceHandler.hpp

@@ -23,19 +23,19 @@
 #include <memory>
 #include <optional>
 
-#include "av/ITranscoder.hpp"
+#include "audio/ITranscoder.hpp"
 #include "core/IResourceHandler.hpp"
 
 namespace lms::transcoding
 {
-    class TranscodingResourceHandler final : public core::IResourceHandler
+    class ResourceHandler final : public core::IResourceHandler
     {
     public:
-        TranscodingResourceHandler(const av::InputParameters& inputParameters, const av::OutputParameters& outputParameters, std::optional<std::size_t> estimatedContentLength);
-        ~TranscodingResourceHandler() override;
+        ResourceHandler(const audio::TranscodeParameters& parameters, std::optional<std::size_t> estimatedContentLength);
+        ~ResourceHandler() override;
 
-        TranscodingResourceHandler(const TranscodingResourceHandler&) = delete;
-        TranscodingResourceHandler& operator=(const TranscodingResourceHandler&) = delete;
+        ResourceHandler(const ResourceHandler&) = delete;
+        ResourceHandler& operator=(const ResourceHandler&) = delete;
 
     private:
         Wt::Http::ResponseContinuation* processRequest(const Wt::Http::Request& request, Wt::Http::Response& response) override;
@@ -46,6 +46,6 @@ namespace lms::transcoding
         std::array<std::byte, _chunkSize> _buffer;
         std::size_t _bytesReadyCount{};
         std::size_t _totalServedByteCount{};
-        std::unique_ptr<av::ITranscoder> _transcoder;
+        std::unique_ptr<audio::ITranscoder> _transcoder;
     };
 } // namespace lms::transcoding

src/libs/services/transcoding/impl/TranscodeService.cpp

@@ -17,24 +17,20 @@
  * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "TranscodingService.hpp"
+#include "TranscodeService.hpp"
 
-#include "av/ITranscoder.hpp"
+#include "audio/ITranscoder.hpp"
 #include "core/ILogger.hpp"
+#include "core/UUID.hpp"
 #include "database/IDb.hpp"
 #include "database/Session.hpp"
 
-#include "TranscodingResourceHandler.hpp"
+#include "TranscodeResourceHandler.hpp"
 
 namespace lms::transcoding
 {
     namespace
     {
-        av::OutputParameters toAv(const OutputParameters& out)
-        {
-            return { .format = static_cast<lms::av::OutputFormat>(out.format), .bitrate = out.bitrate, .stripMetadata = out.stripMetadata };
-        }
-
         std::size_t doEstimateContentLength(std::size_t bitrate, std::chrono::milliseconds duration)
         {
             const std::size_t estimatedContentLength{ static_cast<size_t>((bitrate / 8 * duration.count()) / 1000) };
@@ -42,40 +38,35 @@ namespace lms::transcoding
         }
     } // namespace
 
-    std::unique_ptr<ITranscodingService> createTranscodingService(db::IDb& db, core::IChildProcessManager& childProcessManager)
+    std::unique_ptr<ITranscodeService> createTranscodeService(db::IDb& db, core::IChildProcessManager& childProcessManager)
     {
-        return std::make_unique<TranscodingService>(db, childProcessManager);
+        return std::make_unique<TranscodeService>(db, childProcessManager);
     }
 
-    TranscodingService::TranscodingService(db::IDb& db, core::IChildProcessManager& childProcessManager)
+    TranscodeService::TranscodeService(db::IDb& db, core::IChildProcessManager& childProcessManager)
         : _db{ db }
         , _childProcessManager(childProcessManager)
     {
         LMS_LOG(TRANSCODING, INFO, "Service started!");
     }
 
-    TranscodingService::~TranscodingService()
+    TranscodeService::~TranscodeService()
     {
         LMS_LOG(TRANSCODING, INFO, "Service stopped!");
     }
 
-    std::unique_ptr<core::IResourceHandler> TranscodingService::createResourceHandler(const InputParameters& inputParameters, const OutputParameters& outputParameters, bool estimateContentLength)
+    std::unique_ptr<core::IResourceHandler> TranscodeService::createTranscodeResourceHandler(const audio::TranscodeParameters& parameters, bool estimateContentLength)
     {
-        av::InputParameters avInputParams;
         std::optional<std::size_t> estimatedContentLength;
 
-        avInputParams.file = inputParameters.filePath;
-        avInputParams.offset = inputParameters.offset;
-        avInputParams.streamIndex = inputParameters.streamIndex;
-
         if (estimateContentLength)
         {
-            if (inputParameters.offset < inputParameters.duration)
-                estimatedContentLength = doEstimateContentLength(outputParameters.bitrate, inputParameters.duration - inputParameters.offset);
+            if (parameters.inputParameters.offset < parameters.inputParameters.duration)
+                estimatedContentLength = doEstimateContentLength(*parameters.outputParameters.bitrate, parameters.inputParameters.duration - parameters.inputParameters.offset);
             else
-                LMS_LOG(TRANSCODING, WARNING, "Offset " << inputParameters.offset << " is greater than audio file duration " << inputParameters.duration << ": not estimating content length");
+                LMS_LOG(TRANSCODING, WARNING, "Offset " << parameters.inputParameters.offset << " is greater than audio file duration " << parameters.inputParameters.duration << ": not estimating content length");
         }
 
-        return std::make_unique<TranscodingResourceHandler>(avInputParams, toAv(outputParameters), estimatedContentLength);
+        return std::make_unique<transcoding::ResourceHandler>(parameters, estimatedContentLength);
     }
 } // namespace lms::transcoding

src/libs/services/transcoding/impl/TranscodeService.hpp

@@ -19,21 +19,21 @@
 
 #pragma once
 
-#include "services/transcoding/ITranscodingService.hpp"
+#include "services/transcoding/ITranscodeService.hpp"
 
 namespace lms::transcoding
 {
-    class TranscodingService : public ITranscodingService
+    class TranscodeService : public ITranscodeService
     {
     public:
-        explicit TranscodingService(db::IDb& db, core::IChildProcessManager& childProcessManager);
-        ~TranscodingService() override;
+        explicit TranscodeService(db::IDb& db, core::IChildProcessManager& childProcessManager);
+        ~TranscodeService() override;
 
-        TranscodingService(const TranscodingService&) = delete;
-        TranscodingService& operator=(const TranscodingService&) = delete;
+        TranscodeService(const TranscodeService&) = delete;
+        TranscodeService& operator=(const TranscodeService&) = delete;
 
     private:
-        std::unique_ptr<core::IResourceHandler> createResourceHandler(const InputParameters& inputParameters, const OutputParameters& outputParameters, bool estimateContentLength) override;
+        std::unique_ptr<core::IResourceHandler> createTranscodeResourceHandler(const audio::TranscodeParameters& parameters, bool estimateContentLength) override;
 
         db::IDb& _db;
         core::IChildProcessManager& _childProcessManager;

src/libs/services/transcoding/include/services/transcoding/Exception.hpp

@@ -19,18 +19,13 @@
 
 #pragma once
 
-#include <functional>
+#include "core/Exception.hpp"
 
-#include "metadata/Types.hpp"
-
-namespace lms::metadata
+namespace lms::transcoding
 {
-    class IImageReader
+    class Exception : public core::LmsException
     {
     public:
-        virtual ~IImageReader() = default;
-
-        using ImageVisitor = std::function<void(const Image& image)>;
-        virtual void visitImages(ImageVisitor visitor) const = 0;
+        using LmsException::LmsException;
     };
-} // namespace lms::metadata
+} // namespace lms::transcoding

src/libs/services/transcoding/include/services/transcoding/ITranscodeService.hpp

@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2025 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <memory>
+
+#include "audio/TranscodeTypes.hpp"
+
+namespace lms
+{
+    namespace core
+    {
+        class IChildProcessManager;
+        class IResourceHandler;
+    } // namespace core
+
+    namespace db
+    {
+        class IDb;
+    }
+} // namespace lms
+
+namespace lms::transcoding
+{
+    class ITranscodeService
+    {
+    public:
+        virtual ~ITranscodeService() = default;
+
+        // virtual std::unique_ptr<IAudioFileInfo> parseAudioFileInfo(const std::filesystem::path& p) const = 0;
+
+        virtual std::unique_ptr<core::IResourceHandler> createTranscodeResourceHandler(const audio::TranscodeParameters& parameters, bool estimateContentLength = false) = 0;
+    };
+
+    std::unique_ptr<ITranscodeService> createTranscodeService(db::IDb& db, core::IChildProcessManager& childProcessManager);
+} // namespace lms::transcoding

src/libs/services/transcoding/include/services/transcoding/ITranscodingService.hpp

@@ -1,76 +0,0 @@
-/*
- * Copyright (C) 2025 Emeric Poupon
- *
- * This file is part of LMS.
- *
- * LMS is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * LMS is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include <chrono>
-#include <filesystem>
-#include <memory>
-#include <optional>
-
-namespace lms
-{
-    namespace core
-    {
-        class IChildProcessManager;
-        class IResourceHandler;
-    } // namespace core
-
-    namespace db
-    {
-        class IDb;
-    }
-} // namespace lms
-
-namespace lms::transcoding
-{
-    struct InputParameters
-    {
-        std::filesystem::path filePath;
-        std::chrono::milliseconds duration{};   // Duration of the audio file
-        std::chrono::milliseconds offset{};     // Offset in the audio file to start transcoding from
-        std::optional<std::size_t> streamIndex; // Index of the stream to be transcoded (select the "best" audio stream if not set)
-    };
-
-    enum class OutputFormat
-    {
-        MP3,
-        OGG_OPUS,
-        MATROSKA_OPUS,
-        OGG_VORBIS,
-        WEBM_VORBIS,
-    };
-
-    struct OutputParameters
-    {
-        OutputFormat format;
-        std::size_t bitrate{ 128'000 };
-        bool stripMetadata{ true };
-    };
-
-    class ITranscodingService
-    {
-    public:
-        virtual ~ITranscodingService() = default;
-
-        virtual std::unique_ptr<core::IResourceHandler> createResourceHandler(const InputParameters& inputParameters, const OutputParameters& outputParameters, bool estimateContentLength) = 0;
-    };
-
-    std::unique_ptr<ITranscodingService> createTranscodingService(db::IDb& db, core::IChildProcessManager& childProcessManager);
-} // namespace lms::transcoding