Re: [Mjpeg-users] recording with alsa

[Bernhard P. <sha...@ut...>]

Hallo

> A wand to record videos via my pixelview (bt878) card with
> lavrec. I
> use alsa, the audio output of the tv-card is connected to
> the line-in
> of my integrated via sound card. I can record videos but no
> sound.
> The command i tried:
> 
> lavrec -f a -i p -t 30 -g 352x288 -R l -s -r 44100 -q 80 -C
> europe-west:35 / --software-encoding --mjpeg-buffers 128
> movie.avi
What was the error message ?

The 2 typical problems are that the sound card is busy with anything
else. You can check that with: fuser /dev/dspX, where is is your actual
sound card.

Or your sound card does not support mmaped recording. You have to look
at some documentaion of your sound card/alsa to find out if it should be
supported.
To record in read mode add the -U option to your command line. 
 
> I also tried the -R m & -R c switches, without succes. What
> is the
> correct command? The alsa-driver (ver 0.9.8) is configurated
> well, and
> works perfectly...
Thats not likely to help. But it depends on the error message. 

auf hoffentlich bald,

Berni the Chaos of Woodquarter

Email: sha...@ut...
www: http://www.lysator.liu.se/~gz/bernhard