webcam and audio capture

Hans Petter Selasky hps at
Sat Dec 26 16:12:37 UTC 2015

On 12/26/15 13:31, Marco Beishuizen wrote:
> On Sat, 26 Dec 2015, the wise Michael Zhilin wrote:
>> Hi Marco,
>> Do you have tried to change default_unit to 4? I don't remember exact
>> sysctl node, but it's easy to grep it:
>> sysctl -a | grep default_unit
>> It worked for me before to resolve all troubles with sound.
>> Thanks!
> Hi Michael,
> This unfortunately doesn't work because the problem isn't the soundcard
> (output), but the webcam (input). Sound output is working fine
> (/dev/dsp0). But sound input should be /dev/dsp4 but is incorrectly also
> pointed to /dev/dsp0.


Virtual OSS from my I4B SVN can do this.

svn --username anonsvn --password anonsvn \
       checkout svn://

cd i4b/trunk/virtual_oss

make all install

kldload cuse
kldload cuse4bsd

sysctl hw.snd.basename_clone=0
virtual_oss -C2 -c 2 -b 16 -S -r 48000 -s 1000 -P /dev/dspX -R /dev/dspY 
-d dsp


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