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Method, device and system for synchronously playing message stream and audio and video stream

A synchronous playback, audio and video technology, applied in the direction of image communication, selective content distribution, electrical components, etc., can solve the problems that audio and video cannot be played synchronously, reduce the interaction and experience effect of online live broadcast education, etc.

Inactive Publication Date: 2019-07-19
CHINANETCENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the viewer will broadcast the live broadcast immediately when receiving the audio and video stream or text stream, messages such as whiteboard and text chat cannot be played synchronously with the corresponding audio and video, which reduces the interaction and experience effect of online live broadcast education

Method used

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  • Method, device and system for synchronously playing message stream and audio and video stream
  • Method, device and system for synchronously playing message stream and audio and video stream

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0040] An embodiment of the present invention provides a method for synchronously playing message streams and audio and video streams, which can be jointly implemented by a streaming end, an audio and video server, a message server, and a streaming end. When the streaming end pushes audio and video streams, the streaming end can be a live broadcast device deployed on the teacher’s end. The streaming end can convert the images and sounds of the teacher during the teaching process into audio and video streams and push them to the audio and video server; The streaming end can be a live broadcast device located on the student end, and the streaming end can pull audio and video streams from the audio and video server and play them. When the...

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Abstract

The invention discloses a method, a device and a system for synchronously playing a message stream and an audio and video stream, and belongs to the technical field of streaming media live broadcast.The method comprises the following steps that a stream pulling end pulls the audio and video streams from an audio and video server and plays the audio and video streams; a message stream is pulled from a message server and cached, an audio and video timestamp is added to each audio and video frame in the audio and video stream, a message timestamp is added to each message in the message stream, and time sources taken by the audio and video timestamps and the message timestamps are synchronous time sources; and the stream pulling end determines a message synchronously played with a to-be-played audio and video frame in the cached message stream based on the audio and video timestamp of the audio and video frame and the message timestamp of the message, and plays the message. According to the invention, the synchronous playing of the audio and video streams and the message streams can be realized, and the interaction and experience effects of online live broadcast education are improved.

Description

technical field [0001] The present invention relates to the technical field of streaming media live streaming, in particular to a method, device and system for synchronously playing message streams and audio and video streams. Background technique [0002] With the continuous development of electronic equipment and the Internet, the education industry has evolved from traditional classroom education to online live education based on the Internet. At the same time, online live broadcast education is no longer a simple way for teachers to live broadcast classes, but on top of this, diversified interactive methods such as whiteboards, text chats, and roll calls are continuously added. Through diversified interactive methods, teachers can be more vivid. to transfer knowledge. [0003] In the online live broadcast education process, on the one hand, the teacher’s terminal can collect the audio and video streams generated during the live broadcast process through personal compute...

Claims

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Application Information

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IPC IPC(8): H04N21/43H04N21/8547
CPCH04N21/4307H04N21/8547H04N21/235H04N21/435H04N21/4886
Inventor 张俊黄剑武
Owner CHINANETCENT TECH
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