2.2.5.3.1 On Playback Started Message (ON_PLAYBACK_STARTED)
The ON_PLAYBACK_STARTED message is sent from the server to the client to start playback of a presentation.
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Header (variable) |
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PresentationId (16 bytes) |
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PlaybackStartOffset |
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IsSeek |
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Header (variable): The common message header (as specified in section 2.2.1). The InterfaceId field MUST be set to 0x00000000. The Mask field MUST be set to STREAM_ID_PROXY. The FunctionId field MUST be set to ON_PLAYBACK_STARTED (0x00000109).
PresentationId (16 bytes): A 16-byte GUID that identifies the presentation.
PlaybackStartOffset (8 bytes): A 64-bit unsigned integer that indicates the reference time when the playback gets started.
IsSeek (4 bytes): A 32-bit unsigned integer that indicates whether this start represents a seek. If the presentation was started because of a seek, then this value is set to one; otherwise it is set it to zero.