[aklug] Re: FriLinux

I've noticed there is a difference between recording a video stream and just streaming it. If I just use Cheese to watch the output of my camera, I seem to be able to set it at anything I want. I have also done Skype Video on Linux using a P3x1GHz. Both seemed to work OK.

I did attempt recording using VLC, but didn't get anywhere. I am thinking now that my issues may have been available power more than failing to figure out the appropriate command line. I may attempt it again now that I have access to a faster processor.

My Blue Eyeball is advertised as being capable of up to 1600 x 1200 x 30fps, but I don't have an interface that will keep up.

--
Jim Gribbin
Linux user #179129
----- Original Message -----
From: "Shane R. Spencer" <shane@bogomip.com>
To: aklug@aklug.org
Sent: Monday, November 22, 2010 9:54:44 AM
Subject: [aklug] Re: FriLinux
I got 1280x1024 MJPEG video chat working the other day.  Required 10mbit :) Most UVC video 
cameras will let you receive a MJPEG stream encoded on the camera.. then you just run 
gstreamer or VLC to do the rest.  I wouldn't recommend transcoding at that resolution :)
In a week or so I will be doing this with 1920x1080 if all goes well :)
On 11/20/2010 11:21 PM, Jim Gribbin wrote:
> Damien and I spent most of our time playing around with USB web cam&  video recording.
>
> I had played around with this from time to time. Never had an appreciation for just how much HorsePower it takes.
>
> I had always assumed I had something set wrong or flaky drivers because I couldn't get anything going in this department. I'd Googled it in the past for requirements and all I seemed to find was the software side of things. Never anything about minimum recommended hardware to accomplish the task.
>
> My 2.4 GHz P4-M (single core) is barely up to the task @ 320x240. I can also get audio if using my old Philips web cam. The video is not as smooth as it was on Damien's, but acceptable. Using my newer "Blue" camera w/ mike, I have to use the built in mic on the laptop. Even enabling the one from my Blue just freezes everything up. I think it's the combination of a higher rate video (than my Philips) plus audio simultaneously over the single USB port.
>
> Damien's 2.0 GHz dual core w/ builtin USB 2 does nice 640x480, until we threw the Blue's audio into the mix. It does nice 320x240 w/ audio. I suspect that with a little tweaking we might get audio @ 640x480 as well.
>
> Fielder was working on a HP office tower for the Mabel T Caverly Ctr. If anyone has a stick or 2 of DDR PC2100 @ 256MB or 512MB, it would probably help. Hard to get X working very well on 256MB.
>
> --
> Jim Gribbin
>
> Linux user #179129
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