High-definition dual-stream video transmission method, transmitting end, receiving end and transmission system

Abstract

The invention discloses a high-definition dual-stream video transmission method, and the method comprises the following steps: a transmitting end transmits a first path of video and a second path of video with a first preset code rate to a receiving end of a video conference terminal device; when current bandwidth information and network transmission information fed back by the receiving end are received, if a video source type of the second path of video is static video, the transmitting end codes the rest of video picture frames with a second preset code rate when the current bandwidth information and the network transmission information satisfy a preset condition; and the transmitting end packages the coded video data and sends the packaged video data to the receiving end. The inventionalso discloses the transmitting end and the receiving end of the video conference terminal device, and a transmission system. With the method, the transmitting end, the receiving end and the transmission system provided by the invention, a problem of unsmooth playing of a high-definition dual-stream video can be solved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a transmission method, a sending end, a receiving end and a transmission system of high-definition dual-stream video. Background technique [0002] Dual-stream technology is an advanced technology specially developed for the requirements of data applications in video conferencing. It realizes the synchronous transmission of video, audio and data through a call bandwidth, allowing participants to watch the speaker's graphics and hear the speaker's voice at the same time View active graphics from the speaker's computer; also display graphic information in high-definition resolution. Dual-stream video conferencing is to send two video streams to the opposite end during a meeting: one of which is the main video of the meeting scene collected by the camera, and the other is the personal computer / notebook screen or office documents such as WORD / PPT on it, or DVD audio / video on ...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a high-definition dual-stream video transmission method, sending end, receiving end and transmission system, aiming to solve the problems of high-definition dual-stream video playback stuck and not smooth, so as to improve user experience

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