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Code Issues Releases Activity

correct computing of DV fourcc in mov muxer

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Patch by Baptiste COUDURIER, baptiste <<dot>> coudurier <<at>> smartjog <<dot>> com

Originally committed as revision 5124 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2006-03-08 00:39:23 +00:00 committed by Corey Hickey
parent 548a1c8a35
commit 8e32161943
1 changed files with 40 additions and 9 deletions
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49
libavformat/movenc.c
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@ -268,7 +268,7 @@ static const CodecTag codec_movaudio_tags[] = {
{ CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') },
{ CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') },
{ CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') },
{ 0, 0 },
{ CODEC_ID_NONE, 0 },
};
static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack* track)
@ -471,10 +471,46 @@ static const CodecTag codec_movvideo_tags[] = {
{ CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
{ CODEC_ID_H263, MKTAG('s', '2', '6', '3') },
{ CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') },
{ 0, 0 },
/* special handling in mov_find_video_codec_tag */
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL */
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC */
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL */
{ CODEC_ID_NONE, 0 },
};
static int mov_find_video_codec_tag(MOVTrack* track)
{
int tag;
tag = track->enc->codec_tag;
if (!tag) {
if (track->enc->codec_id == CODEC_ID_DVVIDEO) {
if (track->enc->height == 480) { /* NTSC */
if (track->enc->pix_fmt == PIX_FMT_YUV422P)
tag = MKTAG('d', 'v', '5', 'n');
else
tag = MKTAG('d', 'v', 'c', ' ');
} else { /* assume PAL */
if (track->enc->pix_fmt == PIX_FMT_YUV422P)
tag = MKTAG('d', 'v', '5', 'p');
else if (track->enc->pix_fmt == PIX_FMT_YUV420P)
tag = MKTAG('d', 'v', 'p', 'p');
else
tag = MKTAG('d', 'v', 'c', 'p');
}
} else {
tag = codec_get_tag(codec_movvideo_tags, track->enc->codec_id);
}
}
// if no mac fcc found, try with Microsoft tags
if (!tag)
tag = codec_get_tag(codec_bmp_tags, track->enc->codec_id);
assert(tag);
return tag;
}
static int mov_write_video_tag(ByteIOContext *pb, MOVTrack* track)
{
offset_t pos = url_ftell(pb);
@ -483,12 +519,7 @@ static int mov_write_video_tag(ByteIOContext *pb, MOVTrack* track)
put_be32(pb, 0); /* size */
tag = track->enc->codec_tag;
if (!tag)
tag = codec_get_tag(codec_movvideo_tags, track->enc->codec_id);
// if no mac fcc found, try with Microsoft tags
if (!tag)
tag = codec_get_tag(codec_bmp_tags, track->enc->codec_id);
tag = mov_find_video_codec_tag(track);
put_le32(pb, tag); // store it byteswapped
put_be32(pb, 0); /* Reserved */