Live Audio-Video Stream Pre-Pulling for Low-Latency Connections

The patent applies preliminary action by pre-pulling the opposite side's audio and video streams before receiving the permission message. When the connection request is initiated, the client immediately starts downloading the remote stream in advance, so that when permission is granted, the stream is already available for immediate rendering without waiting time, thus resolving the contradiction between authorization control and rendering efficiency

The patent segments the stream processing into distinct phases: pre-pulling phase (downloading remote stream), permission waiting phase (receiving authorization), and merging phase (combining streams). This segmentation allows each module to be independently optimized and managed, reducing overall system complexity while maintaining high rendering efficiency

The patent implements continuity of useful action by performing stream pre-pulling continuously in parallel with the permission message waiting process. Instead of sequential processing (wait for permission → then pull stream), the system continuously downloads the remote stream throughout the permission waiting period, ensuring that when permission arrives, merging can occur immediately without any gaps or delays