[FFmpeg-user] Capture from USB Dazzle: *** dropping frames

Carl Eugen Hoyos cehoyos at ag.or.at
Sun Aug 2 19:12:43 CEST 2015

MrNice <wxcvbn2006 <at> iol.ie> writes:

> I had to add -ts to sync audio and video.

Are they in sync?
(This is the most important question.)

> I tried with -ts abs and -ts mono2abs. I have 
> read the documentation but a bit hard to understand.
> Both are working but what is the difference, which 
> one do you advice?

I cannot answer, sorry.

> Input #0, pulse, from 'alsa_input.pci-0000_00_14.2.analog-stereo':
>   Duration: N/A, start: 1438446921.636832, bitrate: 1411 kb/s

> Input #1, video4linux2,v4l2, from '/dev/video0':
>   Duration: N/A, start: 1438446922.767573, bitrate: 165888 kb/s

This looks ok to me.

When looking at the output, do you think that 
frames are dropped?
(You cut the console output, so I cannot know.)

Carl Eugen

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