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- /*
- * copyright (c) 2009 Michael Niedermayer
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- #include "avformat.h"
- #include "metadata.h"
- #include "libavutil/dict.h"
- #include "libavutil/avstring.h"
- #if FF_API_OLD_METADATA2
- AVDictionaryEntry *
- av_metadata_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
- {
- return av_dict_get(m, key, prev, flags);
- }
- int av_metadata_set2(AVDictionary **pm, const char *key, const char *value, int flags)
- {
- return av_dict_set(pm, key, value, flags);
- }
- void av_metadata_conv(AVFormatContext *ctx, const AVMetadataConv *d_conv,
- const AVMetadataConv *s_conv)
- {
- return;
- }
- void av_metadata_free(AVDictionary **pm)
- {
- av_dict_free(pm);
- }
- void av_metadata_copy(AVDictionary **dst, AVDictionary *src, int flags)
- {
- av_dict_copy(dst, src, flags);
- }
- #endif
- void ff_metadata_conv(AVDictionary **pm, const AVMetadataConv *d_conv,
- const AVMetadataConv *s_conv)
- {
- /* TODO: use binary search to look up the two conversion tables
- if the tables are getting big enough that it would matter speed wise */
- const AVMetadataConv *sc, *dc;
- AVDictionaryEntry *mtag = NULL;
- AVDictionary *dst = NULL;
- const char *key;
- if (d_conv == s_conv)
- return;
- while ((mtag = av_dict_get(*pm, "", mtag, AV_DICT_IGNORE_SUFFIX))) {
- key = mtag->key;
- if (s_conv)
- for (sc=s_conv; sc->native; sc++)
- if (!av_strcasecmp(key, sc->native)) {
- key = sc->generic;
- break;
- }
- if (d_conv)
- for (dc=d_conv; dc->native; dc++)
- if (!av_strcasecmp(key, dc->generic)) {
- key = dc->native;
- break;
- }
- av_dict_set(&dst, key, mtag->value, 0);
- }
- av_dict_free(pm);
- *pm = dst;
- }
- void ff_metadata_conv_ctx(AVFormatContext *ctx, const AVMetadataConv *d_conv,
- const AVMetadataConv *s_conv)
- {
- int i;
- ff_metadata_conv(&ctx->metadata, d_conv, s_conv);
- for (i=0; i<ctx->nb_streams ; i++)
- ff_metadata_conv(&ctx->streams [i]->metadata, d_conv, s_conv);
- for (i=0; i<ctx->nb_chapters; i++)
- ff_metadata_conv(&ctx->chapters[i]->metadata, d_conv, s_conv);
- for (i=0; i<ctx->nb_programs; i++)
- ff_metadata_conv(&ctx->programs[i]->metadata, d_conv, s_conv);
- }
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