Re: A problem with H.264 video (DVB-T)

Le Saturday 01 November 2008 05:22:55 Pavel Troller, vous avez écrit :
> Hi!
>   I have the following problem with playing H.264 (MPEG4) video from DVB-T
> stream:
>   When the channel is tuned, the video is played perfectly, without any
> problems. However, about 30 - 60 seconds later, the video starts to skip.
> At first, it stops momentarily and then skips the missing frames for about
> every 2 - 3 seconds, so it is very annoying (it still plays smoothly
> between the skips, every skip takes about 200 ms). The skip intervals
> decrease by the time, and of course also the difference between picture
> contents before and after the skip. After about a minute, it skips very
> often with very short skips, so it looks as a low framerate (about 10 fps).
> This is the final state, it continues to play this way until the channel is
> re-tuned, which resumes smooth playing for the next 30 - 60 seconds and
> then it repeats the whole process.
>   The sound is played continuously, no skips, and it keeps approximately
> in sync with the video.
>   This is not a CPU performance problem - CPU load doesn't hit 1.00 and it
> is a dualcore machine, so there is a big reserve in the CPU power.
>   Using kaffeine as a frontend. Formerly used xine-lib-1.1.15 and ffmpeg
> svn from the beginning of September, now tried with current hg snapshot of
> xine-lib and svn snapshot of ffmpeg. Still the same. I've been also playing
> extensively with various xine engine settings (quality of postprocessing,
> deinterlacer type, codecs priority etc.), and it didn't influence anything,
> the problem appears always in the same manner.
>   There isn't any debug/error output from xine-lib/ffmpeg.
>   Any help, what to fix ?
>     With regards, Pavel Troller

Could you provide a sample?


-- 
Christophe Thommeret


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