[nSLUG] Video capture (Was: Monday, Jan. 10 Meeting at Uncommon Grounds)
mspencer at tallships.ca
Tue Jan 11 16:32:17 AST 2011
> As I understand it, X draws a green rectangle and hands off the video to
> your video card for accelerated rendering. Read
> http://en.wikipedia.org/wiki/X_video_extension for details.
Ah. Didn't know any of that. Outside of my existing scope. Lots of
reading to do. Thanks.
> Use mplayer -vf screenshot...
[Hits head on wall repeatedly, repeating the RTFM mantra.]
I've groveled through the (excessively long and tedious) manpage for
mplayer, looking for the wrong key words. Duh.
Violated my own favored precept that when I don't understand
something, I should brew a pot of coffee, sit down, put feet up and
read the book cover to cover, however MEGO in effect. Long ago, I
learned C by doing that with K&R. Failed to do it with the mplayer
I see from the web page you mentioned (which I've only browsed as yet)
that ones choice of window manager may make a difference. I use twm,
under which video generally works fine. Capture^H^H^H^H^H^H^H
screenshot :-) is the first problem I've hit.
My target here isn't capturing dirty pictures from pron. I got a cam
from my son for Christmas that fits in a microscope barrel. As we have
a binocular scope suitable for looking such things as, say, the foot
parts of ticks or the mites that live on beetles , I'm looking
forward to capturing such images, once I get it working. The
Windoesware from the mfgr includes frame capture ability but
(allegedly) the applicable Linux driver doesn't. So I was looking
ahead to capturing with mplayer.
 As, frgzample,
Michael Spencer Nova Scotia, Canada .~.
mspencer at tallships.ca /( )\
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