[XviD-devel] Where to get test YUV streams?

[Michael Weiss]

Thanks for the tip, Alexander.  I was able to use mp4creator to get 
an mpeg 4 file. It wouldn't play with the linux realplayer 10 gold or 
the MPEG4IP's mp4player, but it played with both Windows Realplayer 
and Windows Quicktime.  The colors were totally wrong, though--in a 
way that one seemed to replace another.  (1) Could this be because 
the stream was called a YVU12 stream instead of a YUV12 stream?

Also the playback showed an image that didn't move as time ticked 
on.  I don't know if that's the way that the YUV stream that I used 
is supposed to look or not.  I would definitely like to try this 
procedure with more than one YUV stream.
(2) Does anyone know where I can find more YUV streams to test with?

3) Is there anyway of validating a YUV file?  Can I view it?  i.e. If 
I feed a YUV file to xvid_encraw then feed its output to xvid_decraw, 
I want to make sure that what I get at the end is essentially similar 
to what I started with.

Thanks so much for your help.

Mike


At 03:08 PM 9/13/2005, you wrote:

>On Sep 13, 2005, at 4:57 PM, Michael Weiss wrote:
>>
>>I tried an experiment where I took an input stream off the net that
>>claimed to be YVU12 and encoded it using the xvid_encraw.  Then I
>>tried to play it back with the Quicktime and Real players, but they
>>didn't recognize it as a valid MP4 file.  Any ideas on that?
>
>encraw generates raw video packets without any further ordering;
>'.mp4' files are MPEG-4 System Streams. You can turn one into the
>other with mp4creator from http://mpeg4ip.sourceforge.net/.



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Michael J. Weiss <mjw at pobox.com>
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