Front-end decoding Web browser streaming media playing technology

Abstract

The invention discloses a front-end decoding Web browser streaming media playing technology, which is characterized in that a WebSocket communication protocol is used as an agent, and a Web browser based on FFmpeg front-end decoding has no plug-in streaming media playing. By means of the mode, under the mainstream Web browser environment where the flash plug-in is forbidden, the rtmp / rtsp streaming media can be played in real time, and therefore the technical problem that a large number of video monitoring systems based on the rtmp / rtsp protocol cannot play in the mainstream Web browser environment is solved.

Description

technical field [0001] The invention relates to the technical field of computer multimedia, in particular to a front-end decoding browser streaming media playing technology. Background technique [0002] In recent years, with the development of modern computer streaming media technology, more and more units and enterprises have introduced or newly built a large number of video surveillance systems based on their own management needs, generally using the "back-end rtmp protocol to push data + front-end browser flash plug-in playback" Technical approach to process management. At the same time, with the development of web browser technology and security considerations, the mainstream web browser manufacturer Google has officially disabled the flash plug-in in the Chrome browser in December 2020, which makes a large number of existing services based on the rtmp protocol The video surveillance system cannot run on the latest version of the web browser, but can only run in a comp...

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Problems solved by technology

[0004] Using the "real-time conversion of rtmp data stream format" technology, although streaming media data can be played in the latest version of the Web browser, there are technical drawbacks: 1. This technology uses the "back-end server real-time decoding and re-encoding" conversion mechanism, and the conversion process is very Consuming the CPU computing performance of the server, only the smooth conversion of one channel of high-definition video will consume at least 2 to 4 CPU computing cores, which will greatly increase the server purchase cost of enterprises with a large number of monitoring units

2. Converting rtmp data stream to rtsp data stream will cause a process delay of 5 to 10 seconds, which is difficult to accept for units with high real-time monitoring requirements; 3. Converting rtmp data stream to mpegts data stream, The use of network bandwidth will increase sharply, but the smooth conversion of 1-channel high-definition video will occupy at least 8MB / s bandwidth (rtmp before conversion is about 250KB / s), the reason is that the mpegts protocol itself has "low encoding compression rate" This will greatly increase the cost of network environment transformation for enterprises with a large number of monitoring units

[0005] Therefore, although the above-mentioned "real-time conversion of rtmp data stream format" technology can play video stream data in the latest version of the web browser, but because of its more prominent technical drawbacks, most of the time it is still in the form of technical pre-research and program demonstration However, there are not a large number of mature application cases in the demand field of "many monitoring equipment and high real-time requirements"

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