Low-delay interactive teaching live broadcast method and system
An interactive teaching and low-latency technology, applied in the field of Internet live broadcast, can solve the problems of large delay in live broadcast, reduce the overall delay and enhance the viewing experience
Inactive Publication Date: 2019-10-22
全播教育科技(广东)有限公司
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[0003] The present invention provides a low-delay interactive teaching live broadcast method and a low-delay interactive teaching live broadcast system, which can effectively solve the problem of large live broadcast delay in the prior art
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[0028] In order to make the technical problems, technical solutions and beneficial effects solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0029] see figure 1 , a low-latency interactive teaching live broadcast method, including:
[0030] Collect video and audio information from the live broadcast end; encode the collected video and audio information, among which H264 / AAC is used for encoding, and the key frame interval is set to 1s; the encoded video and audio information are encapsulated; RTMP protocol is adopted Push the stream to the server and use the network to accelerate distribution; the player automatically identifies and selects the optimal node to connect to receive the ...
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The invention relates to the field of internet live broadcast, in particular to a low-delay interactive teaching live broadcast method and a low-delay interactive teaching live broadcast system. The method comprises the steps of collecting video and audio information; encoding the acquired video and audio information; packaging the encoded video and audio information; pushing the stream to a server by adopting an RTMP protocol and accelerating distribution by utilizing a network; and enabling the playing end to automatically identify and select the optimal node to connect and receive the packaged video and audio information, decoding the packaged video and audio information and playing the decoded video and audio information. Optimization is carried out from a code acquisition position; delay generated in acquisition, pretreatment and coding processes is reduced; the delay of data transmitted to the server by the acquisition end is optimized through plug flow speed measurement, and thedelay on the equipment end is reduced through node selection optimization of the playing end and a hard decoding mode, so that the overall delay of teaching live broadcast is reduced, low-delay livebroadcast is realized, and the watching experience of a user is enhanced.
Description
【Technical field】 [0001] This application relates to the field of Internet live broadcasting, in particular to a low-latency interactive teaching live broadcast method and a low-latency interactive teaching live broadcast system. 【Background technique】 [0002] Live broadcast technology has been widely used at present. For example, entertainment, real-time interaction, education and other conveniences all need to use real-time live broadcast system. The existing live broadcast technology has the following disadvantages: First: Since the interactive teaching live broadcast system participates in the transmission from the source to the terminal Each module of the system will cause delay, especially the delay of the codec, which leads to a high overall delay of the overall interactive teaching live broadcast system. Affect the experience; second: The real-time signaling message is not synchronized with the audio and video data. For example, the teacher’s blackboard writing trac...
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IPC IPC(8): H04N21/2187H04N21/2662H04N21/262H04N21/433
CPCH04N21/2187H04N21/26208H04N21/2662H04N21/4331
Inventor 刘子畅吴良军李文清何小东张镇关
Owner 全播教育科技(广东)有限公司