how to do screencasts on ubuntu

readme.md

screencasts on ubuntu have been a pain in the neck. this gist is to document some of the difficulties so I don't have to repeat them.

the idea started when trying to convert a d3.js graphic into animatic gif and found this github program. The term is screen capture

• http://stackoverflow.com/questions/20864874/creating-animated-gif-files-out-of-d3-js-animations

Here is what I came up with

• record the avi with ffmpeg
• converge the ffmpeg to gif with imagemagic
• https://trac.ffmpeg.org/wiki/Capture/Desktop
• ffmpeg -video_size 1024x768 -framerate 25 -f x11grab -i :0.0+100,200 -f alsa -ac 2 -i pulse output.flv
• https://wiki.ubuntu.com/ScreenCasts/ffmpeg