Encoder comparison quality-speed tool

A dependency-free (pure standard-library) Python tool that loads the published rate-quality + speed dataset and, for every encoder configuration (implementation + preset), computes BD-rate versus the x264 medium ANCHOR, joins the encode speed (fps at 1080p), and finds the quality-speed PARETO FRONTIER — the configurations no other configuration beats on both speed and efficiency. Reproduces this article's headline table and frontier exactly. BD-rate uses the same engine as the 7.1 toolkit and 7.

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Book cover: Video Streaming, Volume 3 of the Fora Soft Video Engineering HandbookBook cover: Video Encoding, Volume 1 of the Fora Soft Video Engineering HandbookBook cover: AI for Video, Volume 6 of the Fora Soft Video Engineering Handbook

The handbook · 7 volumes

Fora Soft Video Engineering Handbook

This tool computes BD-rate against an x264 medium anchor for each encoder and preset, joins encode speed, and finds the quality-speed Pareto frontier. We wrote seven volumes on the video stack; start with Volume 1 on H.264, HEVC and AV1 encoding and quality metrics, then Volume 3 for delivery economics and Volume 6 for AI models. Written by Nikolay Sapunov, CEO at Fora Soft.

Browse the handbook on Amazon →7 volumes · 9,000+ pages · Kindle & paperback

Which encoder preset gives your catalog the best quality per CPU second?

Share sample titles and your compute budget, and we will plot your own quality-speed frontier and pick the encoder settings. 250+ video products shipped since 2005.

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