Hi All,
I need the details about Audio and Video codecs supported (by ffmpeg) in
*.mp4 format. I referred the isom.c, mov.c and movenc.c files. But still not
very sure about the codec list.
In isom.c file, I found the following codec list,
const AVCodecTag ff_mp4_obj_type[] = {
{ CODEC_ID_MPEG4 , 32 },
{ CODEC_ID_H264 , 33 },
{ CODEC_ID_AAC , 64 },
{ CODEC_ID_MPEG2VIDEO, 97 }, /* MPEG2 Main */
{ CODEC_ID_MPEG2VIDEO, 96 }, /* MPEG2 Simple */
{ CODEC_ID_MPEG2VIDEO, 98 }, /* MPEG2 SNR */
{ CODEC_ID_MPEG2VIDEO, 99 }, /* MPEG2 Spatial */
{ CODEC_ID_MPEG2VIDEO, 100 }, /* MPEG2 High */
{ CODEC_ID_MPEG2VIDEO, 101 }, /* MPEG2 422 */
{ CODEC_ID_AAC , 102 }, /* MPEG2 AAC Main */
{ CODEC_ID_AAC , 103 }, /* MPEG2 AAC Low */
{ CODEC_ID_AAC , 104 }, /* MPEG2 AAC SSR */
{ CODEC_ID_MP3 , 107 }, /* 11172-3 */
{ CODEC_ID_MP3 , 105 }, /* 13818-3 */
{ CODEC_ID_MPEG1VIDEO, 106 }, /* 11172-2 */
{ CODEC_ID_MJPEG , 108 }, /* 10918-1 */
{ CODEC_ID_PNG , 109 },
{ CODEC_ID_JPEG2000 , 110 }, /* 15444-1 */
{ CODEC_ID_VC1 , 163 },
{ CODEC_ID_VORBIS , 221 }, /* non standard, gpac uses it */
{ CODEC_ID_DVD_SUBTITLE, 224 }, /* non standard, see
unsupported-embedded-subs-2.mp4 */
{ CODEC_ID_QCELP , 225 },
{ 0, 0 },
};
Is this the full list for *.mp4 format? can someone please give me details
on this.
Thanks & Regards,
Srinivasan.
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