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
71
72
73
|
/*
* 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 "libavcodec/avcodec.h"
static const char *get_type_string(enum AVMediaType type)
{
const char *ret = av_get_media_type_string(type);
return ret ? ret : "unknown";
}
#define AV_LOG(...) av_log(NULL, AV_LOG_FATAL, __VA_ARGS__)
#define ERR_INTERNAL(msg, ...) \
do { \
AV_LOG(msg, codec->name __VA_ARGS__); \
ret = 1; \
} while (0)
#define ERR(msg) ERR_INTERNAL(msg, )
#define ERR_EXT(msg, ...) ERR_INTERNAL(msg, , __VA_ARGS__)
int main(void){
void *iter = NULL;
const AVCodec *codec = NULL;
int ret = 0;
while (codec = av_codec_iterate(&iter)) {
if (!codec->name) {
AV_LOG("Codec for format %s has no name\n",
avcodec_get_name(codec->id));
ret = 1;
continue;
}
if (codec->type != AVMEDIA_TYPE_VIDEO &&
codec->type != AVMEDIA_TYPE_AUDIO &&
codec->type != AVMEDIA_TYPE_SUBTITLE)
ERR_EXT("Codec %s has unsupported type %s\n",
get_type_string(codec->type));
if (codec->type != AVMEDIA_TYPE_AUDIO) {
if (codec->channel_layouts || codec->sample_fmts ||
codec->supported_samplerates)
ERR("Non-audio codec %s has audio-only fields set\n");
}
if (codec->type != AVMEDIA_TYPE_VIDEO) {
if (codec->pix_fmts || codec->supported_framerates)
ERR("Non-video codec %s has video-only fields set\n");
}
if (av_codec_is_encoder(codec)) {
if (codec->type == AVMEDIA_TYPE_AUDIO) {
if (!codec->sample_fmts) {
av_log(NULL, AV_LOG_FATAL, "Encoder %s is missing the sample_fmts field\n", codec->name);
ret = 1;
}
}
}
}
return ret;
}
|
