Quoting Diego Simak :
> - Audio and video are not in sync, I can see the following message
> Duration: N/A, start: 1376226919.464630, bitrate: 1007124 kb/s
A couple of things :
* 1366 isn't a multiple of 8 which is probably why you get the "data
is not aligned! This can lead to a speedloss" warning. Set it to 1360
* You've set ffmpeg to record at 30 fps but it seems your computer can
only manage to do 23 fps. That might be the cause of the A/V being out
Either decrease the capture area, change "-r:v 30" to something like
"-r:v 20" or try doing an uncompressed recording (replace "-vcodec
h264 -preset ultrafast -qp 0" with something like "-vcodec huffyuv").
In the latter case you'll end up with a really big capture file which
you might want/need to demux, compress and remux afterwards.
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