[FFmpeg-user] Capturing from DVB-T card

Carl Eugen Hoyos cehoyos at ag.or.at
Fri Nov 2 13:03:34 CET 2012

Miroslav Rovis <m.rovis <at> inet.hr> writes:

>  $ ffmpeg  -f pulse -i default -f v4l2 -channel 1 
> -i /dev/video0 Ffm_`date +C%m%d_%H%M`.avi
> ffmpeg version 0.10.5

This is a bit old, BUT...


> Input #0, pulse, from 'default':
>   Duration: N/A, start: 0.001065, bitrate: N/A

> Input #1, video4linux2,v4l2, from '/dev/video0':
>   Duration: N/A, start: 1351821629.835768, bitrate: 176947 kb/s

the problem is that the start times are incompatible;-(

The problem was reported before, I cannot reproduce it 
(since here, the start times are both in the same range), 
you could try alsa instead of pulse (but that is just 

The v4l2 input driver has a few timestamp options (see 
ffmpeg -h full and search for "V4L2 indev AVOptions"), 
I don't know if they help in your case, testing and 
feedback would be very welcome!

Carl Eugen

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