Server-side frame render timing delay to reduce client-side frame present delay

A server comprising:

• a network interface coupleable to at least one network;
• at least one processor coupled to the network interface;
• and
• at least one memory coupled to the at least one processor, the at least one memory storing executable instructions to manipulate the at least one processor to:
• render a sequence of video frames of a stream of video, encode the video frames of the sequence to generate a stream of encoded video frames, and provide the stream of encoded video frames for transmission to a client device, wherein rendering of each video frame in the sequence is initiated by a corresponding frame start trigger;
• receive feedback from the client device regarding observed vertical synchronization (VSYNC) present latencies for video frames of the stream of video previously presented at the client device;
• and
• introduce a frame start delay that shifts back frame start triggers for a video frame and subsequent video frames of the sequence, the frame start delay based on the feedback from the client device.

A method performed at a client device, comprising:

• receiving, from a server via at least one network, a stream of encoded video frames, decoding the stream of encoded video frames to generate a stream of decoded video frames, and presenting the stream of decoded video frames for display according to a vertical synchronization (VSYNC) timing;
• observing VSYNC present latencies for video frames of the stream of decoded video frames at the client device;
• and
• transmitting feedback to the server regarding the observed VSYNC present latencies.

A client device comprising:

• a network interface coupleable to at least one network;
• at least one processor coupled to the network interface;
• and
• at least one memory coupled to the at least one processor, the at least one memory storing executable instructions to manipulate the at least one processor to:
• receive, from a server via the at least one network, a stream of encoded video frames, decode the stream of encoded video frames to generate a stream of decoded video frames, and present the stream of decoded video frames for display according to a vertical synchronization (VSYNC) timing;
• observe VSYNC present latencies for video frames of the stream of decoded video frames at the client device;
• and
• transmit feedback to the server regarding the observed VSYNC present latencies.