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Store aspect ratio in avis. 

Originally committed as revision 12290 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-03-02 19:51:31 +00:00
parent 1f3d74d39b
commit 5b08754912
1 changed files with 32 additions and 0 deletions
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32
libavformat/avienc.c
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@ -283,6 +283,38 @@ static int avi_write_header(AVFormatContext *s)
end_tag(pb, avi->indexes[i].indx_start);
}
if( stream->codec_type == CODEC_TYPE_VIDEO
&& stream->sample_aspect_ratio.num>0
&& stream->sample_aspect_ratio.den>0){
int vprp= start_tag(pb, "vprp");
AVRational dar = av_mul_q(stream->sample_aspect_ratio,
(AVRational){stream->width, stream->height});
int num, den;
av_reduce(&num, &den, dar.num, dar.den, 0xFFFF);
put_le32(pb, 0); //video format = unknown
put_le32(pb, 0); //video standard= unknown
put_le32(pb, lrintf(1.0/av_q2d(stream->time_base)));
put_le32(pb, stream->width );
put_le32(pb, stream->height);
put_le16(pb, num);
put_le16(pb, den);
put_le32(pb, stream->width );
put_le32(pb, stream->height);
put_le32(pb, 1); //progressive FIXME
put_le32(pb, stream->height);
put_le32(pb, stream->width );
put_le32(pb, stream->height);
put_le32(pb, stream->width );
put_le32(pb, 0);
put_le32(pb, 0);
put_le32(pb, 0);
put_le32(pb, 0);
end_tag(pb, vprp);
}
end_tag(pb, list2);
}