Play While Ingest (Pwi); Sony Trusted Circle - Sony Screen Management System User Manual

Play While Ingest (PWI)

Play While Ingest (PWI) is an ingest method that allows
playback of a single CPL while it is ingesting. Unlike
Local Ingest and Network Ingest, PWI allows you to start
a presentation before the CPL ingest completes.
The following are precautions for Play While Ingest.
Available for CPLs only
Play While Ingest can only be performed on CPLs. If a
DCP contains multiple CPLs, the DCP will not be
recognized as a complete DCP until all the CPLs are
ingested. If a DCP is not recognized as complete, it cannot
be ingested to other LMT using S2S. (Playback is possible
even if a DCP is not recognized as a complete DCP.)
If a DCP contains subtitles or other overlays, or if a CPL
requires validation, Play While Ingest cannot be
performed.
You can also set intermissions for a CPL for which PWI is
performed or include the CPL in an SPL.
CPLs that are 30 minutes or longer in duration are
recommended
If you perform Play While Ingest on a CPL with a short
duration, playback may not start before ingesting is
complete due to an insufficient amount of buffering.
Sufficient network bandwidth (approx. 50 Mbps)
required
If sufficient ingest speeds cannot be obtained due to the
status of the library server or network and the buffer length
(playable duration) drops to below 7 minutes, an alert will
appear in the log. If the buffer length drops below
30 seconds, playback will stop. If playback stops, it cannot
be started again until the buffer length reaches 10 minutes
(under default settings) or more.
The buffer length is an approximate guide, and the actual
playable duration may differ slightly.

Sony Trusted Circle

Sony Trusted Circle is a system that allows a DCP that has
been validated in one SMS to retain its validated status
after it is ingested to an SMS of any screen within the
cinema complex. This eliminates the additional time
required for validation in cinema complexes with multiple
screens.
Previous system
LMT A LMT B
S2S Ingest
DCP
(validated) (not validated)
When S2S ingestion of a DCP was performed from LMT
A to LMT B in previous systems, validation was
required to present on LMT B.
Sony Trusted Circle
LMT A LMT B
S2S Ingest
DCP
(validated) (validated)
When S2S ingestion of a DCP is performed from LMT A
to LMT B with Sony Trusted Circle, validation
information is ingested at the same time, allowing
immediate presentation on LMT B.
LMT A LMT B
S2S Ingest
DCP
(validated) (validated)
The system also applies to S2S ingestion from LMT B to
LMT C, allowing immediate presentation.
DCP
DCP
LMT C
S2S Ingest
DCP DCP
(validated)
Overview
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