A one-page reference for designing DRM license policy before a studio review or a build: the four levers (TIME — subscription absolute expiry, rental two-clock window, purchase no-expiry; OFFLINE — the persistent license, can_persist, short durations and renewal; OUTPUT — HDCP versions mapped to resolution, the PlayReady 100/250/270/300 values, the Widevine HDCP enum, HLS HDCP-LEVEL; SECURITY — L1/L3 and the resolution cap), the three-vendor field map (Widevine rental_duration/playback_duration,
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The handbook · 7 volumes
Fora Soft Video Engineering Handbook
This license policy reference sets the four DRM levers: time, offline, output protection and security level, mapped across Widevine, PlayReady and FairPlay fields. We wrote seven volumes covering the whole video stack; start with Volume 3 for DRM and players, then Volume 2 for packaging, with Volume 1 for encoding. Written by Nikolay Sapunov, CEO at Fora Soft.
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