[MPlayer-users] Mencoder problem with /dev/dsp

Andy Furniss andyqos at ukfsn.org
Thu Jun 30 19:42:57 CEST 2011

Prakash Sompura wrote:
> I have Philips Semiconductors SAA7130 Video Broadcast Decoder (rev 01)
> Multimedia controller. I am using Fedora13 kernel
> I am trying to record TV by command:
> mencoder tv:// -tv driver=v4l2:input=0:norm=pal:width=640:height=480:
> device=/dev/video0:forceaudio:audiorate=32000 buffersize=64 -ovc lavc
> -lavcopts vcodec=mpeg4:vbitrate=800:keyint=30 -oac mp3lame -lameopts
> br=128:cbr:mode=3 -ffourcc divx -endpos 10 -o `date +%y%m%d_%H%M`-m.avi
> And I am getting following output with /dev/dsp busy error.

I've no idea how this will work if F13 has pulseaudio as I've never used it.

You could try using alsa eg.


Change the number at the end to match the saa sound device as shown by
cat /proc/asound/cards

You may also need to run as root alsamixer and unmute the device (but 
this may not show if pulseaudio is installed).

also try audiorate=48000

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