[MPlayer-users] Fwd: recording video and voice simultaneously?

Sampsa Riikonen sampsa.riikonen at iki.fi
Wed Feb 18 21:48:10 CET 2009


Dear List,

I have been asking answers to this problem from
my linux distro's mailing list, but no one seems to know
the answer..

It is really simple..  Has anyone ever succeeded in
recording video and voice simultaneously from a V4L2
device and ALSA?

(see the message below)

Regards,

Sampsa Riikonen

----------  Forwarded Message  ----------

Subject: recording video and voice simultaneously?
Date: Monday 09 February 2009
From: Sampsa Riikonen <sampsa.riikonen at iki.fi>
To: opensuse <opensuse at opensuse.org>

Dear List,

Has anyone ever succeeded in recording video from a webcam 
(v4l2) AND sound (alsa) simultaneously?

This is a thing that should be trivial (in the era of youtube, etc.)
but it is not! :(

http://lists.berlios.de/pipermail/linux-uvc-devel/2007-October/002242.html

I asked ~ 6 months ago in this list how to record video using v4l2 and
we came to the following conclusion (thanks to Manne): 

mplayer tv:// -tv driver=v4l2:device=/dev/video0:fps=30 -vo 
yuv4mpeg:file=paska.mpeg

Now I am trying to add sound from an alsa device by:

mplayer tv:// -tv 
driver=v4l2:device=/dev/video0:fps=30:forceaudio:alsa:adevice=hw.1,0 -vo 
yuv4mpeg:file=paska.mpeg -ao pcm:file=test.pcm

But it does not work.. (no file test.pcm appears).

Any clue, anyone?

Cheers,

Sampsa

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