Thursday, December 18, 2014
Looking to make some GIFs of things that happen on my screen, found
$ sudo apt-get install byzanz byzanz-record -x 1 -y 1 --delay=4 -h 150 -w 700 hello_world.gif
-yset origin of capture on screen
-wset height and width to capture
I think I need a more clever way to trigger / manage this than just fiddling with CLI options, but it works really well and produces lightweight image files.
I think it would be cool if there were a utility that let me use arrow keys / hjkl / the mouse cursor to visually select a region of the screen. It could return x, y, height, and width, then I’d let byzanz handle the capture.
That can’t be the hardest thing in the world to do.
xdotool seems like kind of a
swiss army knife, and has a
getmouselocation command. Theoretically, at
least, you can have it respond to events, including a mouse click. I can’t
quite wrap my head around how this is supposed to work, and my first few
attempts fall flat.
GNU xnee might also be promising, but I don’t really get anywhere with it.
brennen@desiderata 22:06:28 /var/www/workings-book (master) ★ xrectsel "%x %y %w %h" 432 130 718 575%
I wind up with
#!/usr/bin/env bash # requires: # https://github.com/lolilolicon/xrectsel.git eval `xrectsel "BYZANZ_X=%x; BYZANZ_Y=%y; BYZANZ_WIDTH=%w; BYZANZ_HEIGHT=%h"` byzanz-record -x $BYZANZ_X -y $BYZANZ_Y --delay=4 -h $BYZANZ_HEIGHT -w $BYZANZ_WIDTH ~/screenshots/screencast-`date +"%Y-%m-%d-%T"`.gif
I’ll probably wind up with a couple of wrappers for this for different lengths of recording (for starting with dmenu), though it would be nice if I could just have it record until I press some hotkey.