PCR Reference Card

One page: the 27 MHz clock math, the 33-bit base + 9-bit extension encoding, the PCR = base x 300 + ext formula, and the four PCR jitter/drift/offset/interval limits with their standard values.

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Book cover: Video Encoding, Volume 1 of the Fora Soft Video Engineering Handbook

The book · Volume 1 of 7

Video Encoding: A Complete Guide to Video Compression — From Pixels and Color to H.264, HEVC, AV1, Quality Metrics, and AI

This reference card puts the PCR clock math, the base-plus-extension encoding and the four PCR timing limits on one page for quick checks while debugging a stream. Volume 1 covers the encoding side of this topic in depth: how encoders shape their output, rate control and bitrate behaviour, H.264, HEVC and AV1, and the quality metrics that verify the result. Written by Nikolay Sapunov, CEO at Fora Soft.

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