1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/*
* 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;
const AVDictionaryEntry *mtag = NULL;
AVDictionary *dst = NULL;
const char *key;
if (d_conv == s_conv || !pm)
return;
while ((mtag = av_dict_iterate(*pm, mtag))) {
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);
}
|
