Method for forward error correction video transmission based on pjsip protocol stack
By employing a forward error correction video transmission method based on the PJSIP protocol stack, I-frames and P-frames are processed differently, which solves the problems of bandwidth waste and decoding chain interruption in low-latency video transmission in existing technologies, and achieves stability and reliability of video playback.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG ENVISION TECH CO LTD
- Filing Date
- 2026-06-09
- Publication Date
- 2026-07-17
AI Technical Summary
Existing real-time video transmission solutions rely on round-trip latency, which is suitable for low-latency real-time video. Unified redundancy increases bandwidth and complexity, but does not necessarily improve the RTP fragment-level recovery effect. The different importance of I-frames and P-frames and the lack of differentiated protection lead to decoding chain interruption.
A forward error correction video transmission method based on the PJSIP protocol stack is adopted to differentiate I-frames and P-frames. Redundant repair packets are generated by grouping, aggregation, adding error correction headers and RS encoding to adapt to their respective characteristics, optimize bandwidth resources, and ensure stable recovery of I-frames and P-frames.
It achieves stable recovery of I-frames and P-frames under low latency conditions, avoids decoding chain interruption, optimizes bandwidth utilization, and ensures the stability and reliability of video playback.
Smart Images
Figure CN122420291A_ABST