Screen frame transmission method, device, server and system and storage medium

Abstract

The invention discloses a browser based screen frame transmission method. The method comprises the steps that a display frame in the present moment is captured; data of the captured display frame is transmitted to a local browser; on the basis of the local browser, the data of the display frame is sent to a server; and via the data, the server is triggered to send the frame of the display frame toa subscribed receiving-end device via a multimedia channel, and the receiving-end device which receives the data is triggered to render and display the data via a browser. The multimedia channel includes a communication line of UDP based on WebRTC. An embodiment of the invention further provides a screen frame transmission device and system and a storage medium. Thus, screen frame transmission can be more instant and smoother, and the upper limit of participators that can be supported in screen frame transmission can be increased.

Description

technical field [0001] The present invention relates to the field of screen sharing, in particular to a screen image transmission method, device, server, system and storage medium. Background technique [0002] Screen sharing is of high application value in modern work, and it is also widely used in modern teaching. For example, in the participation of the same activity, such as a meeting or a class, a participant wants to share the screen image being played by his source device with other participants, such as the speaker at the meeting will share the displayed content to the audience Play on the devices of the participants, or the teacher shares the lecture content on the devices of the students for display, so that multiple participants in the event can watch the same display content on their own devices. [0003] In the implementation of screen sharing, screen image transmission is the core technology. In the prior art, in order to realize the transmission of the scree...

AI Technical Summary

Problems solved by technology

[0004] In the process of implementing the present invention, the inventor found that in the existing screen transmission technology, since the bottom layer of the socket is based on the TCP protocol, it is limited by the congestion control and retransmission strategy of the TCP protocol, and the redundant information transmitted will gradually accumulate , will lead to an increase in the delay between the playback content of each receiving end and the playback content of the sending end, and the efficiency of information transmission will be low, which will affect the real-time and fluency of sharing, and will greatly limit the number of participants in the same network

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