Framework for Telepresence Multi-Streams

Synchronization Identity The Synchronization Identity MCC attribute indicates how the individual Captures in multiple MCC Captures are synchronized. To indicate that the Capture Encodings associated with MCCs contain Captures from the same source at the same time, a Provider should set the same Synchronization Identity on each of the concerned MCCs. It is the Provider that determines what the source for the Captures is, so a Provider can choose how to group together Single Media Captures into a combined "source" for the purpose of switching them together to keep them synchronized according to the SynchronizationID attribute. For example, when the Provider is in an MCU, it may determine that each separate CLUE Endpoint is a remote source of media. The Synchronization Identity may be used across media types, i.e., to synchronize audio- and video-related MCCs. Without this attribute it is assumed that multiple MCCs may provide content from different sources at any particular point in time. For example:

Example Synchronization Identity MCC Attribute Usage TEST Example Synchronization Identity MCC Attribute Usage

Capture Scene #1
VC1	Description=Left
VC2	Description=Center
VC3	Description=Right
AC1	Description=Room
CSV(VC1,VC2,VC3)
CSV(AC1)
Capture Scene #2
VC4	Description=Left
VC5	Description=Center
VC6	Description=Right
AC2	Description=Room
CSV(VC4,VC5,VC6)
CSV(AC2)
Capture Scene #3
VC7
AC3
Capture Scene #4
VC8
AC4
Capture Scene #5
MCC1(VC1,VC4,VC7)	SynchronizationID=1 MaxCaptures=1
MCC2(VC2,VC5,VC8)	SynchronizationID=1 MaxCaptures=1
MCC3(VC3,VC6)	MaxCaptures=1
MCC4(AC1,AC2,AC3,AC4)	SynchronizationID=1 MaxCaptures=1
CSV(MCC1,MCC2,MCC3)
CSV(MCC4)