A dependency-free (pure standard-library) Python tool implementing the two things this methodology article describes, so a reader can both reproduce our BD-rate math and produce a citable provenance record of their own. (1) BD-RATE DONE RIGHT: computes Bjontegaard delta-rate from two sets of (bitrate, quality) points using a SHAPE-PRESERVING piecewise-cubic interpolation (PCHIP-style monotone Hermite, which cannot overshoot its data points the way the original single cubic does), integration in
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The handbook · 7 volumes
Fora Soft Video Engineering Handbook
This toolkit computes BD-rate with shape-preserving interpolation and writes a citable provenance record, so codec benchmarks can be reproduced. Our seven-volume handbook covers the full video stack; start with Volume 1 for rate-distortion, BD-rate and quality metrics, then Volume 3 for delivery and Volume 6 for AI metrics. Written by Nikolay Sapunov, CEO at Fora Soft.
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