A dependency-free (pure standard-library) Python tool that performs the exact derivation an analytics SDK does on the device: it reads a raw player-event log (loadstart/play, playing, waiting, seeking/seeked, rendition <kbps>, error, ended) and reconstructs the standard player-side QoE metrics. STARTUP = play intent → first 'playing'. REBUFFERING = each 'waiting'→'playing' pair NOT bracketed by a seek (seek waits are excluded), reported as count, total duration, and TWO ratio conventions (stall/
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The handbook · 7 volumes
Fora Soft Video Engineering Handbook
This parser rebuilds startup time, rebuffering ratios and switch counts from a raw player event log, the same QoE derivation an analytics SDK runs on the device. We wrote seven volumes on the video stack; Volume 3 covers players, stall recovery, ABR and QoE monitoring in depth, while Volume 1 explains quality metrics and Volume 6 the models used in AI analysis. Written by Nikolay Sapunov, CEO at Fora Soft.
Your QoE dashboard and raw player logs disagree, and you need to know which is right?
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