2 * copyright (c) 2009 Michael Niedermayer
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "libavutil/dict.h"
24 #include "libavutil/avstring.h"
26 void ff_metadata_conv(AVDictionary **pm, const AVMetadataConv *d_conv,
27 const AVMetadataConv *s_conv)
29 /* TODO: use binary search to look up the two conversion tables
30 if the tables are getting big enough that it would matter speed wise */
31 const AVMetadataConv *sc, *dc;
32 AVDictionaryEntry *mtag = NULL;
33 AVDictionary *dst = NULL;
36 if (d_conv == s_conv || !pm)
39 while ((mtag = av_dict_get(*pm, "", mtag, AV_DICT_IGNORE_SUFFIX))) {
42 for (sc=s_conv; sc->native; sc++)
43 if (!av_strcasecmp(key, sc->native)) {
48 for (dc=d_conv; dc->native; dc++)
49 if (!av_strcasecmp(key, dc->generic)) {
53 av_dict_set(&dst, key, mtag->value, 0);
59 void ff_metadata_conv_ctx(AVFormatContext *ctx, const AVMetadataConv *d_conv,
60 const AVMetadataConv *s_conv)
63 ff_metadata_conv(&ctx->metadata, d_conv, s_conv);
64 for (i=0; i<ctx->nb_streams ; i++)
65 ff_metadata_conv(&ctx->streams [i]->metadata, d_conv, s_conv);
66 for (i=0; i<ctx->nb_chapters; i++)
67 ff_metadata_conv(&ctx->chapters[i]->metadata, d_conv, s_conv);
68 for (i=0; i<ctx->nb_programs; i++)
69 ff_metadata_conv(&ctx->programs[i]->metadata, d_conv, s_conv);