[Mp4-tech] [video][MPEG-4] File formats of test video sequences

Srinivas Ramkumar Yadavalli ysramkumar yahoo.com
Mon Apr 11 22:45:55 EDT 2005


Xia,
As far as I know, there are two file formats
YUV 420 (which is widely used in H.264 encoders
ALL the Y values --> followed by V values --> followed
by U values. This is a planar YUV 420 format
YUV 422 ( which is output of the mpeg-2 decoders)
cr y cb y cr y cb y... the same sequence of values
repeat.
hope this helps
Ramkumar
--- ÏĽðÏé <xia_jin_xiang 163.com> wrote:
> Hi, all,
>   Some MPEG-4 test video sequences have been
> downloaded from
> the web:
> http://meru.cecs.missouri.edu/free_download/videos/,
> 
> whose file postfixes are *.txt (for video files),
> *.0 (or 1 to 299, for Y files), 
> and *.rgb (for RGB files), what are their file
> formats? I want to do
> some tests for motion estimation with these video
> sequences.
>   Thanks in advance.
>   Regards.
>                xia jinxiang>
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