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Filmed 10/23 2015
Experimenting with ffmpeg to improve youtube quality.
25fps and crf28.

Linux of course, full command;

ffmpeg -i input.mp4 -r 25 -codec:v libx264 -crf 28 -bf 2 -flags +cgop -pix_fmt yuv420p -codec:a aac -strict -2 -b:a 128k -r:a 48000 -movflags faststart output.mp4

File size went from 1.1 GB to 299 MB.
For watching in mpv I would recommend 30fps and crf 23 as a starting point.

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