Screencasts - Cheese

Art Wildman wildman at pobox.com
Wed Jun 11 05:31:52 UTC 2008


Clint Savage wrote:
> Hi all,
>
> So I took a couple hours last night/this morning to create a screen 
> cast of cheese and its usage.  I think its pretty good.
>
> http://herlo.fedorapeople.org/screencasts/cheese-final.ogg (9.4MB) 
> ~4.75minutes
>
> The only issue I saw with istanbul, was that when I'd sometimes launch 
> an application (cheese, or epiphany to show the cheese website) the 
> audio would get garbled a little or a lot during the presentation.  I 
> am not sure if this is really a bug, or some sort of config error on 
> my part.
>

Very Cool & well done, though I thought you should raise your webcam to 
look down on you some if possible. The audio processing is likely done 
via shared memory/cpu on the motherboard, so when you launch other apps 
it affects the encoding process (top). If there were dedicated 
audio/video processing hardware or you ran istanbul with a lower 'nice' 
priority and the other apps with a higher 'nice' value. This may not 
work for I/O bound processes, but it's worth a try. You may have to 
create some custom launcher scripts to limit any interference when 
running larger apps like a browser. More on nice here - 
http://www.linux.com/articles/58638 ...Also a light weight desktop like 
XFce.org may help, when doing demos. If it's I/O bound, writing the 
output.ogg to a different drive using a separate controller/channel may 
help. - Cheers, Art




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