recording video from webcam?

Karl Larsen k5di at zianet.com
Fri Aug 3 12:02:43 UTC 2007


Bill Davidsen wrote:
> Tom Horsley wrote:
>> I see mencoder is supposed to be able to record audio from
>> an alsa audio source, but I've never been able to get it
>> to work. (I can start up arecord in the background, then
>> combine the audio and video with a 0.4 second delay, and
>> have it work reasonably well, but that seems kinda klunky).
>>
>> Any handy apps for recording video and audio simultaneously
>> (with a v4l2 only driver - not the original v4l)?
>>
> I do that with a webcam using ffmpeg. The format for video-only is this:
>   ffmpeg -f video4linux -s vga -re /dev/video2 demo.mpg
> 
> To add audio, you need to use "-f audio_device -i {device}" and specify 
> your device. I haven't wanted audio for what I'm doing, so I can't even 
> guess what the audio device on your system is called.

	Thanks Bill and I did a yum install for ffmpeg and it is loaded on my 
F7 now. It has a man page. Better read that a few times...


> 
>> All the fancy DVR apps I've tried seem to freak out when
>> presented with a video source that doesn't have a tuner
>> (maybe it would be simpler to hack the driver to pretend
>> to have a tuner, but always tune to the same channel :-).
>>
> 
> 


-- 

	Karl F. Larsen, AKA K5DI
	Linux User
	#450462   http://counter.li.org.




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