[transcode-users] warning: left/right clip must be even in YUV/YUV422 mode

[Florent Rougon]

Hi,

I'd like to ask a little question. When transcoding with:

  transcode -i source.mpg -o /dev/null -m audio -y xvid4,null -w 1930 \
    -b 128,0,0 --export_par 9216,4896 --progress_rate 20 -R 1,xvid4.log \
    -c 14145-159874 -j 2,3,0,3 -J pp=ci

where I suppose only '-y xvid4,null' and '-j 2,3,0,3' are really
relevant to the question, I get (with transcode CVS from today):

  [transcode] warning: left/right clip must be even in YUV/YUV422 mode
  [transcode] warning: left/right clip must be even in YUV/YUV422 mode

I'm wondering: the clipping may be odd on the left or on the right, but
if the resulting image *width* and *height* are both even, it should be
OK, no?

And transcode doesn't stop after the warnings, so it *seems* to be OK
(and I have actually transcoded streams with these warnings with
transcode 1.0.2 and didn't see any problem that seemed related to the
warnings; the reason I am testing the CVS version now is that I somtimes
have A/V sync problems, and the last one I had wasn't a constant delay
throughout the stream, therefore I don't know how to fix it...)

Thanks.

-- 
Florent