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-rw-r--r--src/decoder/plugins/FfmpegMetaData.cxx76
1 files changed, 76 insertions, 0 deletions
diff --git a/src/decoder/plugins/FfmpegMetaData.cxx b/src/decoder/plugins/FfmpegMetaData.cxx
new file mode 100644
index 000000000..a39466945
--- /dev/null
+++ b/src/decoder/plugins/FfmpegMetaData.cxx
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/* necessary because libavutil/common.h uses UINT64_C */
+#define __STDC_CONSTANT_MACROS
+
+#include "config.h"
+#include "FfmpegMetaData.hxx"
+#include "tag/TagTable.hxx"
+#include "tag/TagHandler.hxx"
+
+static const struct tag_table ffmpeg_tags[] = {
+ { "year", TAG_DATE },
+ { "author-sort", TAG_ARTIST_SORT },
+ { "album_artist", TAG_ALBUM_ARTIST },
+ { "album_artist-sort", TAG_ALBUM_ARTIST_SORT },
+
+ /* sentinel */
+ { nullptr, TAG_NUM_OF_ITEM_TYPES }
+};
+
+static void
+ffmpeg_copy_metadata(TagType type,
+ AVDictionary *m, const char *name,
+ const struct tag_handler *handler, void *handler_ctx)
+{
+ AVDictionaryEntry *mt = nullptr;
+
+ while ((mt = av_dict_get(m, name, mt, 0)) != nullptr)
+ tag_handler_invoke_tag(handler, handler_ctx,
+ type, mt->value);
+}
+
+static void
+ffmpeg_scan_pairs(AVDictionary *dict,
+ const struct tag_handler *handler, void *handler_ctx)
+{
+ AVDictionaryEntry *i = nullptr;
+
+ while ((i = av_dict_get(dict, "", i, AV_DICT_IGNORE_SUFFIX)) != nullptr)
+ tag_handler_invoke_pair(handler, handler_ctx,
+ i->key, i->value);
+}
+
+void
+ffmpeg_scan_dictionary(AVDictionary *dict,
+ const struct tag_handler *handler, void *handler_ctx)
+{
+ for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i)
+ ffmpeg_copy_metadata(TagType(i), dict, tag_item_names[i],
+ handler, handler_ctx);
+
+ for (const struct tag_table *i = ffmpeg_tags;
+ i->name != nullptr; ++i)
+ ffmpeg_copy_metadata(i->type, dict, i->name,
+ handler, handler_ctx);
+
+ if (handler->pair != nullptr)
+ ffmpeg_scan_pairs(dict, handler, handler_ctx);
+}