/* * copyright (c) 2009 Michael Niedermayer * * This file is part of Libav. * * Libav 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. * * Libav 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 Libav; 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) 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); }