Method and system for optimizing media-on-demand based on real-time file format conversion

A format conversion and real-time file technology, applied in electrical components, television, selective content distribution, etc., can solve problems such as very high computing power requirements, computational complexity, re-decoding, and huge amount of encoding calculations, to improve response time , improve user experience, and avoid teleportation effects

Active Publication Date: 2011-11-23
CHINANETCENT TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (3) Video transcoding in the usual sense requires decoding and re-encoding of video and audio data. This process will consume a lot of cpu computing resources, especially for advanced encoding methods (such as h264), the amount of re-decoding and encoding calculations is very high. huge
Therefore, on the one hand, this method has very high requirements for computing power, and on the other hand, due to the complexity of computing, real-time performance cannot be fully guaranteed.

Method used

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  • Method and system for optimizing media-on-demand based on real-time file format conversion
  • Method and system for optimizing media-on-demand based on real-time file format conversion
  • Method and system for optimizing media-on-demand based on real-time file format conversion

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no. 1 example

[0051] figure 1 The flowchart of the first embodiment of the method for optimizing streaming media on demand based on real-time file format conversion of the present invention is shown. See figure 1 , the client 10 sends an http request to the server 12 to request a file (for example, a file named Src). After receiving the http request, the server 12 parses the http request and finds the Src file corresponding to the http request.

[0052] After the server 12 judges that the network broadcast quality of the Src file is lower than the expected value, the real-time file format conversion is started, and the data encapsulation format of the Src file is converted to retain the basic codec information meeting the file transmission requirements in the file header.

[0053] File format conversion is real-time, specifically as image 3 As shown, the same video and audio data may have different file packaging formats (mp4, flv, ts, etc.), and these different formats can be converted...

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Abstract

The invention discloses a method and system for optimizing media-on-demand based on real-time file format conversion, and realizes transmission of a small data set video file header through quick file format conversion, so that the repeated multiplexing of a file by a server can be realized. The method adopts a technical scheme as follows: a client transmits an http request of a file to a server; and after receiving the http request, the server analyzes the http request to find out the file corresponding to the http request; and after determining that the network broadcasting quality of the file is lower than an expected value, the server starts real-time file format conversion, converts the data encapsulation format of the file to maintain basic coding and decoding information in accordance with file transmission in a file header, and transmits the file subjected to the data encapsulation format conversion to the client to play.

Description

technical field [0001] The invention relates to optimization technology of streaming media on demand, in particular to a method and system for optimizing streaming media on demand through real-time file format conversion. Background technique [0002] VOD (video on demand) based on the HTTP protocol is currently a more popular way of streaming media on demand, and users can watch video files in various formats (mp4, flv, etc.) in this way. When the client needs to play a certain video, it sends an http request to the http server through the player, and the server sends the video file to the client through the http protocol after receiving the request. [0003] There are following deficiencies in existing this mode: [0004] (1) Different file encapsulation formats of the same video and audio data have different emphases in playback performance. Some encapsulation formats store all codec information and playback information in the file header. This format performs well in l...

Claims

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Application Information

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IPC IPC(8): H04N21/238H04N21/437H04N7/30
Inventor 洪珂邓独邹焕英刘成彦
Owner CHINANETCENT TECH
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