ffmpuzzle
Puzzle #21 · Hard · 6 params

AV1 · CRF 25 · 1080p · Opus · MP4

The scenario

Netflix-grade AV1 encoding for a premium SVOD catalog title. CRF 25 for near-transparent quality, preset 4 for maximum compression (overnight encode farm), Opus audio, MP4 container for CMAF/DASH delivery.

The answer

Video CodecAV1
CRF25
Resolution1080p
AudioOpus
ContainerMP4
Preset4

The command

ffmpeg -i input.mov -c:v libsvtav1 -crf 25 -preset 4 -c:a libopus -b:a 192k output.mp4

Why

Netflix was one of the first to deploy AV1 at scale, starting with Android in 2020. Their AV1 encodes at preset 4 can take 100x longer than real-time but save 30-50% bandwidth vs H.265, translating to millions in CDN cost savings.

Play

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