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71 lines
2.5 KiB
C
Executable File
71 lines
2.5 KiB
C
Executable File
/*
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* copyright (c) 2009 Michael Niedermayer
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "avformat.h"
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#include "metadata.h"
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#include "libavutil/dict.h"
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#include "libavutil/avstring.h"
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void ff_metadata_conv(AVDictionary **pm, const AVMetadataConv *d_conv,
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const AVMetadataConv *s_conv)
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{
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/* TODO: use binary search to look up the two conversion tables
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if the tables are getting big enough that it would matter speed wise */
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const AVMetadataConv *sc, *dc;
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AVDictionaryEntry *mtag = NULL;
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AVDictionary *dst = NULL;
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const char *key;
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if (d_conv == s_conv || !pm)
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return;
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while ((mtag = av_dict_get(*pm, "", mtag, AV_DICT_IGNORE_SUFFIX))) {
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key = mtag->key;
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if (s_conv)
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for (sc=s_conv; sc->native; sc++)
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if (!av_strcasecmp(key, sc->native)) {
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key = sc->generic;
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break;
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}
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if (d_conv)
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for (dc=d_conv; dc->native; dc++)
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if (!av_strcasecmp(key, dc->generic)) {
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key = dc->native;
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break;
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}
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av_dict_set(&dst, key, mtag->value, 0);
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}
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av_dict_free(pm);
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*pm = dst;
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}
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void ff_metadata_conv_ctx(AVFormatContext *ctx, const AVMetadataConv *d_conv,
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const AVMetadataConv *s_conv)
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{
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int i;
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ff_metadata_conv(&ctx->metadata, d_conv, s_conv);
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for (i=0; i<ctx->nb_streams ; i++)
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ff_metadata_conv(&ctx->streams [i]->metadata, d_conv, s_conv);
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for (i=0; i<ctx->nb_chapters; i++)
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ff_metadata_conv(&ctx->chapters[i]->metadata, d_conv, s_conv);
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for (i=0; i<ctx->nb_programs; i++)
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ff_metadata_conv(&ctx->programs[i]->metadata, d_conv, s_conv);
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}
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