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Method and system for generating and playing network video

A network video recording and playback method technology, applied in the field of network video recording generation and playback methods and systems, can solve problems such as failure to achieve user effects, network congestion, etc., and achieve the effects of improving experience and reducing network burden

Inactive Publication Date: 2009-12-09
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in practical applications, users often have a demand for fast playback that is greater than the normal playback rate; however, if the video data is completely sent at the requested playback rate, it will often cause network congestion, thus failing to meet user expectations. Effect

Method used

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  • Method and system for generating and playing network video
  • Method and system for generating and playing network video
  • Method and system for generating and playing network video

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Experimental program
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Embodiment Construction

[0030] Before describing the method for generating and playing the network video recording of the present invention in detail, the specific application environment of the present invention for playing the network video recording is briefly introduced. Such as figure 1 As shown, the application environment includes: a client 10 , a content distribution network (CDN) server 20 , a transcription server 30 , a streaming server 40 , an encoder 50 and a camera 60 . When a video recording task such as timing video recording task initiates, at first by CDN server 20, send video recording order to streaming media server 40 through network; The original code stream file is decoded, down-sampled, and re-encoded to obtain a code stream file played to the client 10 at a corresponding double speed. Wherein, the encoder 50 is a device connected to the camera 60 and capable of providing streaming media data.

[0031] Such as figure 2 As shown, the generation and playing method of network ...

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PUM

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Abstract

The invention discloses a method for generating and playing a network video, which comprises the following steps: when a streaming media server receives a video command, storing an original code stream file from a front end encoder by the streaming media server; decoding the original code stream file stored by the streaming media server by a transcription server to obtain an original image sequence, performing N times downsampling on the original image sequence to obtain a subsequence of a corresponding frame rate, and encoding the subsequence to obtain a corresponding code stream file; and when a client requests multiple-speed playing of the network video, sending a code stream file corresponding to the requested multiple-speed to the client at a normal speed by the streaming media server. The invention also discloses a system for generating and playing the network video. The method and the system can reduce the network burden and improve the user experience when the client requests to play the network video at a multiple-speed.

Description

technical field [0001] The invention relates to multimedia network video recording technology, in particular to a method and system for generating and playing network video recording. Background technique [0002] With the development of network technology, a new media technology emerges at the historic moment, which is streaming media technology. The so-called streaming media refers to continuous time-based media using streaming technology in the network, such as audio, video or multimedia files. Streaming media services can provide users with continuous audio and video streams to meet the needs of users watching dynamic audio and video online. need. [0003] As an important way to store video information, network video recording is widely used in many fields. As the name suggests, network video recording refers to video recordings that are stored and transmitted through the network. In addition, in practical applications, users often have a demand for fast playback that...

Claims

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Application Information

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IPC IPC(8): H04N7/173H04N7/24H04N21/231H04N21/235H04N21/2385
Inventor 吴明星
Owner ZTE CORP
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