Re: Capture (for video) what is displayed on the screen

[Camaleón <noelamac@gmail.com>]

On Sun, 09 May 2010 18:46:20 +0200, Merciadri Luca wrote:

> Camaleón writes:
> 
>> Ffmpeg (command line tool) can achieve that:
>>
>> http://ffmpeg.org/ffmpeg-doc.html#SEC4
>>
>> With "-t" you specify the time interval for screen grabbing.
> Nice, but
> 
> ==
> ~$ ffmpeg -f x11grab -s cif -i :0.0 /tmp/out.mpg 

(...)

> [x11grab @ 0xb7f7fec8]device: :0.0 -> display: :0.0 x: 0 y: 0 width: 352
> height: 288 [x11grab @ 0xb7f7fec8]AVParameters don't have video size
> and/or rate. Use -s and -r. :0.0: I/O error occured
> Usually that means that input file is truncated and/or corrupted. 

And what happens when you specify another "-s" (size) and "-r" (rate)?

ffmpeg -f x11grab -r 24 -s 640x480 -i :0.0 /tmp/out.mpg

>> There also some nice GUI apps ("Istambul" or "gtk-recordmydesktop")
>> that can also help you with this task.

> Istanbul looks nice, but I am obliged to choose `Record 3D' to actually
> record something acceptable: if this option is unticked, the video
> images' alternate between (black&white) and (color). Note the `n' at the
> place of your `m'. Weird, once again!

Yep, it's named "Ista[n]bul" :-)

"Recordmydesktop" is another option. There are many others, just check 
what is better for you.

Greetings,

-- 
Camaleón