[FFmpeg-user] A/V are out of sync

Carl Eugen Hoyos cehoyos at ag.or.at
Sat Nov 19 12:30:32 CET 2011

Zongyao Qu <zongyao.qu <at> gmail.com> writes:

> The issue is that when I set thread to 8, the video is always behind 
> of audio about 0.3s
> but when I set thread to 1, I could not see the out-of-sync.
> when set to 6, it is seeable, but less than 8.

ffmpeg -threads 8 -i input -qscale 2 -ab 256k out.avi
produces a file for you that is out-of-sync?

If yes, please provide complete, uncut console output.

Please do not point to external information, but provide everything here on the
list that is necessary to reproduce the problem.

Carl Eugen

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