Hi,

I have a problem when transcoding xvid movies, that sometimes strange  
artifacts appear in the resulting movies that did not exist in the  
original. I use the following commands:

> transcode -r 2,1 -i clip.avi -R 1,clip.log -w 600 -o /dev/null \
  -b 96 -y xvid4 -Q 5 -e 44100,16,2 -M 1 >run1.log 2>&1
> transcode -r 2,1 -i clip.avi -R 2,clip.log -w 600 -o result.avi \
  -b 96 -y xvid4 -Q 5 -e 44100,16,2 -M 1 >run2.log 2>&1

Beginning at frame 2186 there are some artifacts in the result.avi:
http://www.bartelmus.de/transcode/result_2186.jpg
The involved files can be found here:
http://www.bartelmus.de/transcode/clip.avi
http://www.bartelmus.de/transcode/clip.log
http://www.bartelmus.de/transcode/run1.log
http://www.bartelmus.de/transcode/run2.log
http://www.bartelmus.de/transcode/result.avi

In the terminal output I can see the following:
encoding frames [000000-002176],  76.75 fps, EMT: 0:01:27, ( 0| 0| 6)
[mpeg4 @ 0xb5bb0ba8]slice end not reached but screenspace end (-8 left  
052FFC, score= -2185)
[mpeg4 @ 0xb5bb0ba8]concealing 864 DC, 864 AC, 864 MV errors
encoding frames [000000-002177],  76.70 fps, EMT: 0:01:27, ( 0| 0| 9)

I don't know if this is related or only there by coincidence.

I'm using v1.0.2 on Debian Etch. The binaries come from debian- 
multimedia.org.

Any pointers?

Cheers,

Christoph

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