A catalog for my processing sketches
This FFmpeg command takes an image sequence, couples it with audio, and creates a .mp4. The pixel format and audio codec has been tested, and works for uploading videos to Instagram.
ffmpeg -framerate 30 -i .\sketch-1\render-%06d.png -i .\data\song.mp3 -c:v libx264 -preset veryslow -c:a libvo_aacenc -af volume=0.4 -vb 10M -ss 00:00:00 -to 00:00:60 -pix_fmt yuv420p -r 30 video.mp4
https://processing.org/reference/saveFrame_.html
https://en.wikibooks.org/wiki/FFMPEG_An_Intermediate_Guide/image_sequence
https://stackoverflow.com/a/11783474
https://video.stackexchange.com/a/13074