[FFmpeg-user] wrong generated video?

[Carl Eugen Hoyos]

Pablo Rodríguez <oinos <at> web.de> writes:

> I recode video using the following command:
> 
> ffmpeg -i test.avi -acodec libvo_aacenc -vcodec h264 
> -pix_fmt yuv420p output.flv

Complete, uncut console output missing.

> The issue is that audio/video sync seems to be wrong.

[...]

> Source video can be found at
> https://github.com/ousia/webhosting-test/blob/gh-pages/check.avi

This appears to be a silent sample.
How can audio/video sync be wrong for a silent movie?

Carl Eugen