Use case: Encoding a movie once for long-term storage.
Setting --cpu-used 0 or 1 tells the computer to take its time. For a 90-minute episode of Vera , this could take 24+ hours, but it ensures every frame is analyzed with surgical precision. vera s05 libvpx best
ffmpeg -i input.mp4 -c:v libvpx-vp9 \ -b:v 1M \ -cpu-used 2 \ -row-mt 1 \ -tile-columns 4 \ -frame-parallel 1 \ -auto-alt-ref 1 \ -lag-in-frames 25 \ -quality good \ -crf 30 \ output.webm Use case: Encoding a movie once for long-term storage
does not naturally scale across many CPU cores as well as other encoders, settings like -tile-columns this could take 24+ hours