[FFmpeg-user] ffmpeg not syncing while using pipe

[Carl Eugen Hoyos]

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

> ffmpeg -nostdin -loglevel debug -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 -

(filter_complex seems unneeded.)

My question was:
If you use only this command (as far as I pasted it), 
does it allow to reproduce the sync-problem if you 
redirect to a file?

Or don't you agree the answer will significantly 
reduce the number of possible reasons?

> Setting the logging level to debug
> outputs more then 10000 lines

Sorry, I am not a native speaker:
How does "without loglevel fatal" imply debug level?

> ffmpeg version 2.1.1

Please test current git head.

Carl Eugen