artwilton

Compressing GIFs

Converting file to a GIF and compressing using imagemagick and gifsicle:

convert -delay 4 <source> -loop 0 +dither -layers OptimizePlus "${@:3}" gif:- | gifsicle -O3 --dither --lossy=30 --resize-width 640 -V -o <output>.gif

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Parameters explained:

artwilton

After Effects:

Expressions

wiggle expression syntax:

wiggle(freq, amp, octaves=1, amp_mult=0.5, t=time);

Per Adobe Documentation:

artwilton

FFmpeg commands I use often

Basic Encoding

Export a medium quality mp4 file at 1280 x 720

ffmpeg -i <input> -c:v libx264 -preset fast -crf 22 -s 1280x720 -c:a libfdk_aac -b:a 196k -ar 44100 -pix_fmt yuv420p <output>.mp4

Quickly convert audio to .wav file