Added disc subtitles support. Fixes #56

src/libs/metadata/impl/AvFormatParser.cpp

@@ -211,6 +211,12 @@ AvFormatParser::parse(const std::filesystem::path& p, bool debug)
 			{
 				track.musicBrainzTrackID = UUID::fromString(value);
 			}
+			else if (tag == "TSST"
+					|| tag == "DISCSUBTITLE"
+					|| tag == "SETSUBTITLE")
+			{
+				track.discSubtitle = value;
+			}
 			else if (_clusterTypeNames.find(tag) != _clusterTypeNames.end())
 			{
 				std::vector<std::string> clusterNames {StringUtils::splitString(value, "/,;")};

src/libs/metadata/impl/TagLibParser.cpp

@@ -270,6 +270,8 @@ TagLibParser::processTag(Track& track, const std::string& tag, const TagLib::Str
 		track.albumReplayGain = StringUtils::readAs<float>(value);
 	else if (tag == "REPLAYGAIN_TRACK_GAIN")
 		track.trackReplayGain = StringUtils::readAs<float>(value);
+	else if (tag == "DISCSUBTITLE" || tag == "SETSUBTITLE")
+		track.discSubtitle = value;
 	else if (_clusterTypeNames.find(tag) != _clusterTypeNames.end())
 	{
 		std::set<std::string> clusterNames;
@@ -372,8 +374,12 @@ TagLibParser::parse(const std::filesystem::path& p, bool debug)
 	{
 		if (mp3File->ID3v2Tag())
 		{
-			if (!mp3File->ID3v2Tag()->frameListMap()["APIC"].isEmpty())
+			const auto& frameListMap {mp3File->ID3v2Tag()->frameListMap()};
+
+			if (!frameListMap["APIC"].isEmpty())
 				track.hasCover = true;
+			if (!frameListMap["TSST"].isEmpty())
+				properties.insert("DISCSUBTITLE", frameListMap["TSST"].front()->toString());
 		}
 
 		getAPETags(mp3File->APETag());

src/libs/metadata/include/metadata/IParser.hpp

@@ -58,25 +58,26 @@ namespace MetaData
 	{
 		std::vector<Artist>		artists;
 		std::vector<Artist>		albumArtists;
-		std::string			title;
+		std::string				title;
 		std::optional<UUID>		musicBrainzTrackID;
 		std::optional<UUID>		musicBrainzRecordID;
-		std::optional<Album>		album;
-		Clusters			clusters;
-		std::chrono::milliseconds 	duration {};
+		std::optional<Album>	album;
+		Clusters				clusters;
+		std::chrono::milliseconds 	duration;
 		std::optional<std::size_t>	trackNumber;
 		std::optional<std::size_t>	totalTrack;
 		std::optional<std::size_t>	discNumber;
 		std::optional<std::size_t>	totalDisc;
 		std::optional<int>		year;
 		std::optional<int>		originalYear;
-		bool				hasCover {false};
+		bool					hasCover {};
 		std::vector<AudioStream>	audioStreams;
 		std::optional<UUID>		acoustID;
-		std::string			copyright;
-		std::string			copyrightURL;
-		std::optional<float>		trackReplayGain;
-		std::optional<float>		albumReplayGain;
+		std::string				copyright;
+		std::string				copyrightURL;
+		std::optional<float>	trackReplayGain;
+		std::optional<float>	albumReplayGain;
+		std::string				discSubtitle;
 	};
 
 	class IParser