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

2025-11-02 16:23:10 +01:00
parent 8e554b258c
commit b25e3b9b1e
112 changed files with 4005 additions and 3379 deletions
@@ -0,0 +1,56 @@
+/*
+ * 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 "ImageReader.hpp"
+
+#include <algorithm>
+
+#include "core/String.hpp"
+
+#include "AudioFile.hpp"
+
+namespace lms::audio::ffmpeg
+{
+    ImageReader::ImageReader(const AudioFile& audioFile)
+        : _audioFile{ audioFile }
+    {
+    }
+
+    ImageReader::~ImageReader() = default;
+
+    void ImageReader::visitImages(const ImageVisitor& visitor) const
+    {
+        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 Picture& picture, const AudioFile::MetadataMap& metaData) {
+            Image image;
+            image.data = picture.data;
+            image.mimeType = picture.mimeType;
+            if (metaDataHasKeyword(metaData, "front"))
+                image.type = Image::Type::FrontCover;
+            else if (metaDataHasKeyword(metaData, "back"))
+                image.type = Image::Type::BackCover;
+
+            visitor(image);
+        });
+    }
+
+} // namespace lms::audio::ffmpeg