Online teaching recording and playing method and system

Abstract

The invention provides an effective recording and playing method and system. The recording and playing method and system are characterized in that in an online teaching process or an online meeting, operation of functions of multimedia whiteboard by a user, speech / voice of the user, communication voice with other users and / or tutoring voice and the like are recorded to respectively form different data streams; and a united timestamp can be generated by an online teaching system to mark various data streams rather than completely recording the whole event in a form of streaming media so that network users can conveniently download various data steams which need to be played via a network from a Cloud server or a local area network server anytime anywhere; after obtaining the data streams, clients of user terminals can obtain the data streams on line according to the timestamp and organically combine and play the data streams to the users, thus finishing the on-demand browsing.

Description

technical field [0001] The present invention relates to a method, system and computer program product for recording and playing teaching activities or meeting processes based on systems such as network teaching or online meetings, and realizes real-time recording of multimedia classroom or meeting contents in the process of network teaching or online meetings. Recording and on-demand playback. Background technique [0002] In recent years, with the popularization of the mobile Internet and the rapid development of the network teaching system, the traditional teaching mode has gradually been unable to meet the needs of users for teaching methods such as multimedia informationization and easy playback. In the process of online teaching, the teaching process is recorded through classroom recording and broadcasting, and excellent teaching resources can be shared on the Internet. Users can use terminals to access these excellent teaching resources online, and can also meet the ne...

AI Technical Summary

Problems solved by technology

[0009] In the prior art, these recording and broadcasting methods have the following disadvantages: 1. The recording process is cumbersome, and some require special personnel to record on-site; 2. The video file is huge, and it needs to sacrifice the quality of the courseware for multiple format conversions to reduce the file size; 3. The server storage system requires High; 4. Local recording requires high configuration and performance of the client machine, slow upload speed, and difficult playback; 5. Simulating system roles consumes high server resources and cannot meet the large concurrent network recording requirements of the classroom; 6. Playback streams on demand The performance requirements of the media server cluster are high; 7. On-demand playback requires high server bandwidth; 8. On-demand playback requires the user's own bandwidth to be high (the file is too large); 9. When using wireless networks such as 2G / 3G / 4G to watch, there is serious lag, which is not enough Fluent, and consumes a lot of traffic

[0010] Furthermore, when a user downloads a file to watch locally, it not only takes up a lot of storage space, but also fails to protect the copyright of the teaching resource provider, resulting in the wanton dissemination of teaching resources, and complex encryption processing will occupy network bandwidth resources and resources. Device processor resources, affecting user experience

[0011] In addition, the existing commercial software in the prior art can record every action of the screen operation and save it as AVI or Microsoft RealNetworks data stream format, but this will occupy a large amount of storage space and the data format it provides is also streaming media

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