ffmpuzzle
Puzzle #36 · Standard · 5 params

ProRes · Bitrate 45M · 1080p · PCM · MOV

The scenario

ProRes Proxy generation for an offline edit in Final Cut Pro. Profile 0 (Proxy) at 45 Mbps for fast timeline scrubbing on a MacBook Air, PCM audio, MOV container. The editor will relink to original camera files for the final export.

The answer

Video CodecProRes
Bitrate45M
Resolution1080p
AudioPCM
ContainerMOV

The command

ffmpeg -i input.mp4 -c:v prores_ks -profile:v 0 -b:v 45M -c:a pcm_s16le output.mov

Why

ProRes Proxy (profile 0) was designed to be exactly 1/3 the data rate of ProRes 422. Apple optimized the decode path so heavily that a 2020 MacBook Air can play 16 streams simultaneously — making multicam editing viable on a laptop.

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