Dynamic Buffer Management for P2P Streaming Synchronization

The patent implements dynamic buffer management where the buffer controller continuously monitors playback status and network conditions, adjusting buffer operations in real-time. The buffer size and timing are dynamically adapted to maintain synchronization despite varying network conditions, resolving the contradiction between reliability and static complexity.

Each peer client autonomously manages its own buffering without requiring complex centralized coordination. The local buffer controller independently regulates data reception, storage, and playback timing based on local playback status, simplifying the overall system while maintaining synchronization reliability.

The system performs preliminary buffering of incoming data pieces before playback. The buffer stores data in advance, allowing peers to share pre-buffered pieces with other peers even before they are played back locally, thereby increasing sharing ratio without significantly impacting user-perceived latency.

The buffer holds more data pieces than the minimum required for continuous playback. This excessive buffering ensures that sufficient data is available for sharing with other peers during synchronization events, improving the sharing ratio while maintaining acceptable playback timing.

The buffer size is dynamically adjusted based on actual playback status and network conditions rather than being fixed at a large value. The buffer controller monitors synchronization status and expands or contracts buffer capacity accordingly, maintaining reliable synchronization while optimizing memory utilization.

The system changes buffer parameters (size, timing, retention duration) adaptively based on operational conditions. When synchronization is stable, buffer size is reduced; when network variability increases, buffer size is expanded. This parameter adaptation maintains reliability while minimizing average memory usage.