Re: [gentoo-user] Questions about recording webcam+mic on netbook

[Michael Mol]

On Sat, Oct 6, 2012 at 5:03 AM, Walter Dnes <waltdnes@××××××××.org> wrote:
> On Fri, Oct 05, 2012 at 07:36:16AM -0400, Michael Mol wrote
>> On Oct 5, 2012 3:23 AM, "Walter Dnes" <waltdnes@××××××××.org> wrote:
>> >
>> >   I'm getting really ambitious with my 3-year-old Acer netbook, now that
>> > open source Poulsbo video support exists.  After tweaking the kernel,
>> > I've got the webcam+mic recording with the command...
>>
>> Check out 'uvcview'.
>
>   I assume you meant luvcview.  It works for monitoring, but I can't
> figure out how to record properly...

Actually, it looks like the one I'm accustomed to is
media-video/guvcview. I haven't played with media-video/luvcview

>
> 1) It outputs a raw stream file (named "stream.raw") which mplayer can't
> figure out how to play.
>
> 2) How do I get it to record audio too?
>
>   I wouldn't mind transcoding the raw output, if I could get sound in
> there.  ffmpeg can record mpeg4 video plus mp3 sound.  The video has
> blocky artifacts when there's motion on the screen.  I tried ffmpeg with
> x264 codec, but the cpu is simply not up to it.  I used cpufreq-utils to
> push both cores to their max speed (1.3 ghz) but it didn't help.

When I last used guvcview, it muxed both audio and video into an
appropriate container format for me, but it was all very configurable.
I do recall I went with MJPEG for a video codec.[1]

I realize you're not fond of GNOME, but guvcview doesn't require
pulling in all of gnome. Though looking at it now, it may require
pulseaudio.

I haven't tried luvcview, sorry.

[1] This video was recorded with guvcview, and then uploaded as-is.
http://www.youtube.com/watch?v=kul0eGILCI4

-- 
:wq