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feat: add encoder tuning harness for 4K60 fractal videos

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make_clips.sh renders lossless FFV1 4K60 test clips through the Makefile's
colour conversion; sweep.sh encodes them with a list of ffmpeg configs and
scores each with VMAF 4K (mean/p1/min), VMAF-NEG, CAMBI banding and PSNR-Y.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
surv
2026-09-29 17:59:14 +02:00
co-authored by Claude Opus 5.5
parent 49130f5ecf
commit da992c139a
4 changed files with 164 additions and 0 deletions
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tools/encode/configs/speed.txt
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# Pass 1: which presets fit the 3-5 fps budget at 4K on this machine.
x265-fast | -pix_fmt yuv420p10le -c:v libx265 -profile:v main10 -preset fast -crf 18 -x265-params log-level=error:aq-mode=3:no-sao=1
x265-medium | -pix_fmt yuv420p10le -c:v libx265 -profile:v main10 -preset medium -crf 18 -x265-params log-level=error:aq-mode=3:no-sao=1
x265-slow | -pix_fmt yuv420p10le -c:v libx265 -profile:v main10 -preset slow -crf 18 -x265-params log-level=error:aq-mode=3:no-sao=1
av1-p5 | -pix_fmt yuv420p10le -c:v libsvtav1 -preset 5 -crf 26 -svtav1-params film-grain=0
av1-p6 | -pix_fmt yuv420p10le -c:v libsvtav1 -preset 6 -crf 26 -svtav1-params film-grain=0
av1-p7 | -pix_fmt yuv420p10le -c:v libsvtav1 -preset 7 -crf 26 -svtav1-params film-grain=0
av1-p8 | -pix_fmt yuv420p10le -c:v libsvtav1 -preset 8 -crf 26 -svtav1-params film-grain=0