Also see [[WebM]], [[Theora]], and [[CheatSheet/Photointervalometry]] for other FFmpeg-related stuff.

== Creating a screencast ==

{{{#!highlight sh
screencap() {
RESOLUTION="1920x1080" # Make this the capture size
QUALITY="libvpx-1080p" # Run ls /usr/share/ffmpeg and pick a preset
THREADS="16" # Change this to the amount of cpu threads you want ffmpeg to use
OUTPUT="VideoFileName.mp4" # Leave the extension, change the file name to whatever

ffmpeg -f alsa -i pulse -vol 255 -f x11grab -r 25 \
-s $RESOLUTION -i :0.0+0,0 -acodec pcm_s16le \
-vcodec libx264 -vpre $QUALITY \
-threads $THREADS temp.mkv

ffmpeg -i temp.mkv -vcodec libx264 -vpre $QUALITY -strict -2 -crf 22 -threads $THREADS $OUTPUT

rm temp.mkv
}
}}}

Source: [[http://www.reddit.com/r/linux/comments/113ws7/im_looking_for_a_screen_capture_program_might_be/c6j7m25|Reddit]]

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CategoryCheatSheet