Multi-channel video playback synchronization system and its processing method based on webrtc

A synchronization system and video recording technology, applied in the field of video processing, can solve problems such as multi-channel playback out of synchronization, lack of multi-channel video recording synchronous playback mechanism, etc., to reduce the possibility and ensure the effect of sending consistency

CN110381350BActive Publication Date: 2021-07-30HANGZHOU XUJIAN SCI & TECH CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: HANGZHOU XUJIAN SCI & TECH CO LTD
Publication Date: 2021-07-30

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Abstract

The invention discloses a webrtc-based multi-channel video playback synchronization system and a processing method thereof. The webrtc-based multi-channel video playback synchronization system includes: a video storage module, a video frame synchronization module, a Webrtc contract sending module, a playback evaluation module, a playback control module, and a video recording module. Source, playback proxy module, webrtc packet receiving module, webrtc decoding module, webrtc rendering module; adopt the technical solution of the present invention, webrtc technology has independent sending and receiving packet retransmission, video decoding, and video rendering delay because of multi-channel video playback. The playback speed of multi-channel video is high, and the present invention transmits frames synchronously through the video frame synchronization module to ensure the consistency of webrtc transmission, reduce the possibility of multi-channel playback out of synchronization, and evaluate video playback with small delay and large delay through the playback evaluation module. Use the frame loss and delay method to correct the playback of other videos through the video frame synchronization module.

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Description

technical field

[0001] The invention relates to the technical field of video processing, in particular to a webrtc-based multi-channel video playback synchronization system and a processing method thereof. Background technique

[0002] With the popularization of HTML5 technology and the phase-out of IE plug-in technology, webrtc has become the main solution for browsers to exchange video and audio. The browser client front end of video surveillance has also started to use webrtc technology. Multi-channel video playback is a common function of the video surveillance client, and several historical playback videos can be viewed at the same time point at the same time. However, webrtc and HTML5 lack a mechanism for synchronous playback of multi-channel video recordings. Because webrtc technology has independent package retransmission, video decoding, and video rendering delays for multiple channels, the playback speed of multi-channel video recordings is high, and multi-channel ...

Claims

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