| /* |
| * 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" |
| |
| 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 || !pm) |
| 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); |
| } |