FFmpeg Forum
File size/present question for h.265.
File size/present question for h.265.
by Christophe Pettus on Nov 26, 2018 at 11:06:04 pm

I'm using ffmpeg on the command line to encode video from a QuickTime ProRes 4444p DCI-resolution source to h.265, y420p. It's working just fine, but I noticed something very odd: If I change nothing but the preset, the file size goes down as the encoding speed goes up:

Preset and resulting file size:

My question is: This is rather the opposite from what I'd expect. Am I missing something obvious?





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