SRTP Playback Streaming#744
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1. ONVIF Replay Service->GetServiceCapabilities->SupportedSRTPProtocolAlgorithms capability flag added to list supported cryptographic algorithms for SRTP Playback streaming if device supports SRTP Playback Streaming. 2. ONVIF Replay Service->GetReplayUri->SRTPProtocol ->The optional parameter defines the network protocol for SRTP Playback streaming as defined by trp:SRTPTransportProtocol. The Device should ignore StreamSetup parameters once this parameter is present. 3. ONVIF Replay Service->GetReplayConfiguration/SetReplayConfiguration->Configuration->SRTPProtocolAlgorithm->If SRTP playback streaming is supported, this optional parameter specifies the cryptographic algorithm to be used for the SRTP playback session, as defined by tt:SrtpSecurityAlgorithms. 4. ONVIF Replay Service Spec is updated with SRTP RTP Packet with playback header extension diagram. 5. ONVIF Replay Service Spec->Fault error codes related to SRTP Playback are added in GetReplayUri Faults.
kieran242
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May 8, 2026
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@venki5685 I reviewed this against the current Replay Spec and found all good.
After your presentation on 7th May at VE WG Meting I take it that there may be more to update and so will hold off approving for now until you let me know it is close to finalization.
1. The ONVIF Replay Service GetReplayUri API now uses the ReplayStreamSetup data structure. 2. onvif.xsd has been updated with the ReplayStreamSetup data structure. An optional SRTP attribute has been added to the ReplayStreamSetup data structure to request a URI for SRTP playback streaming when set to true. When set to false or omitted, the RTP and RTSP playback streaming behaviour remains unchanged. 3. The ONVIF Replay Control specification has been updated: GetReplayUri now uses the ReplayStreamSetup data structure, and an error code has been added for an invalid SRTP protocol when SRTP playback streaming is not supported by the device.
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