D‑Cine Player · 4.2.32 release

DDL - D-Cine Display Lock

Bind protected playback to one or more qualified display chains without forcing a post-production player to remain in one room.

Enroll several displays

Approve grading monitors, client projectors, screening rooms and controlled service replacements for one player.

Content-selected assurance

One player certificate supports DDL1, DDL2 or DDL3 targeting through the KDM’s signed AnnotationText—compatible with familiar KDM creation workflows.

Qualified control

Authority-managed user permission controls enrollment and removal, with a reviewable record of successful and denied requests.

Recognisable display inventory

Pair the authoritative EDID fingerprint with available manufacturer, model, serial, manufacture date and physical-size details.

Layered identity

Use authenticated HDCP for DDL1, enrolled EDID fingerprints for DDL2, and authenticated receiver identity/topology for hardware-qualified DDL3.

Two-year activity history

Signed-in Authority users can review authorization, enrollment and removal history—including player serial, requested/achieved level and display identity—for 730 days.

Visible and fail-closed: the player reports Unlocked, DDL1, DDL2 or DDL3 at the top of the interface. DDL3’s signed kernel installer is offered only to explicitly qualified GPU IDs. Hardware qualification is in progress; no GPU is yet advertised as production-qualified.

SDI DCP playback uses a separate DDL1 policy and refuses DDL2/DDL3 requests. SDI does not implement HDCP on the wire; EAR’s default authenticated-HDCP requirement remains in force. Qualify the permitted media/output combination with the content owner.

See setup and operating instructions

Written by James Gardiner · Documentation updated 2026-10-31. For more information visit tools.d-cine.net. Check procedures against the installed release and venue policy.

2026 © D-Cine.net.
Developed by James Gardiner