diff options
Diffstat (limited to 'src/decoder/FfmpegMetaData.cxx')
-rw-r--r-- | src/decoder/FfmpegMetaData.cxx | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/decoder/FfmpegMetaData.cxx b/src/decoder/FfmpegMetaData.cxx new file mode 100644 index 000000000..2d7ebbca3 --- /dev/null +++ b/src/decoder/FfmpegMetaData.cxx @@ -0,0 +1,79 @@ +/* + * Copyright (C) 2003-2013 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_table.h" +#include "tag_handler.h" + +#undef G_LOG_DOMAIN +#define G_LOG_DOMAIN "ffmpeg" + +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 */ + { NULL, TAG_NUM_OF_ITEM_TYPES } +}; + +static void +ffmpeg_copy_metadata(enum tag_type type, + AVDictionary *m, const char *name, + const struct tag_handler *handler, void *handler_ctx) +{ + AVDictionaryEntry *mt = NULL; + + while ((mt = av_dict_get(m, name, mt, 0)) != NULL) + 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 = NULL; + + while ((i = av_dict_get(dict, "", i, AV_DICT_IGNORE_SUFFIX)) != NULL) + 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(tag_type(i), dict, tag_item_names[i], + handler, handler_ctx); + + for (const struct tag_table *i = ffmpeg_tags; + i->name != NULL; ++i) + ffmpeg_copy_metadata(i->type, dict, i->name, + handler, handler_ctx); + + if (handler->pair != NULL) + ffmpeg_scan_pairs(dict, handler, handler_ctx); +} |