[FFmpeg-user] ffmepg not syncing while using pipe

[Carl Eugen Hoyos]

frank ernest <doark <at> mail.com> writes:

> ffmpeg -nostdin -loglevel fatal -f video4linux2 
> -framerate 20 -s:v 640x480 -i /dev/video0 -ac 2 
> -f alsa -i hw:0 -ac 2 -c:a libvorbis -s:v 640x480 
> -b:v 100KiB -c:v libvpx -f nut -b:a 9000B 
> -filter_complex volume=15 -

Complete, uncut console output (without loglevel fatal) 
missing, does this part allow to reproduce the sync 
problem?
What happens if you use a file instead of the pipe here?

Carl Eugen