[MEncoder-users] recording TV with mencoder on FreeBSD

Chris Burkert chris at chrisburkert.de
Sun Jan 9 18:39:03 CET 2005


So nobody who can help with this? No ideas?

Chris Burkert wrote:
> Hi Travis and List,
> 
> thanks for Travis for his article at [1]. In my case watching TV works 
> like a charm, but recording doesn't. So maybe you can help me. I have an 
> old P3 with 700MHz running FreeBSD 5.2R using the following script:
> 
> #!/bin/sh
> mixer line 100
> mixer =rec line
> mixer recsrc 50
> mencoder tv://\
>   -tv driver=bsdbt848:input=1:width=320:height=240:norm=PAL\
>   -oac mp3lame -lameopts br=64\
>   -ovc lavc    -lavcopts vcodec=mpeg4:vhq:vbitrate=500\
>   -o tvCapture.avi
> aumix -L
> 
> The problem is when I do not disable audio (with noaudio in option -tv) 
> the result is choppy for video and audio and out of sync. See a sample 
> at [2] (~700KB). When I disable audio (with noaudio in option -tv) the 
> recorded video is ok. See a sample at [3] (~700KB). In both cases my CPU 
> is for about 30% - 40% of the time idle.
> 
> I also put the output of the script at [4]. There are a lot of "Invalid 
> frame duration value" messages.
> 
> I hope you can help me! I will provide more information if needed.
> 
> Regards
>            Chris Burkert
> 
> 1: http://lickwid.ath.cx/~tlp/mptv.html
> 2: http://www.chrisburkert.de/tvCapture2.avi
> 3: http://www.chrisburkert.de/tvCapture1.avi
> 4: http://www.chrisburkert.de/out.log


Regards
            Chris Burkert
-- 
http://www.chrisburkert.de/




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