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Method for realizing redirection when playing stream media

A technology of streaming media and streaming media server, which is applied to realize jumping fields during streaming media playback, and achieves the effects of precise positioning, high speed and small space cost.

Inactive Publication Date: 2009-01-07
天地华文(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the MPEG-2 transport stream widely used in the field of digital TV cannot complete the jump during video broadcast and video on demand, so this problem needs to be solved as soon as possible

Method used

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  • Method for realizing redirection when playing stream media

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Embodiment Construction

[0028] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0029] figure 1 It is a flow chart of realizing jump during streaming media playing in the specific embodiment of the present invention. Such as figure 1 As shown, the process of realizing the jump during streaming media playback includes the following steps:

[0030] Step 101, set up and store a mapping table on the streaming media server, this mapping table includes the MPEG-2TS stream data packet at the nearest I frame adjacent to the time scale in the MPEG-2TS stream file to be played number, and the synchronization time of the MPEG-2TS stream packet.

[0031] The time scale can be an integer second, and the difference between two adjacent time scales is 1 second. Since the time scale is an integer second, the number of rows in the mapping table naturally corresponds to an integer second, so...

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Abstract

The invention discloses a method used for realizing jumping when the stream media is being played, which is applicable to MPEG-2 transmission stream format files, comprising: establishing a mapping table between memory time graduation and TS stream data package number where I frame most adjacent to the time graduation exists in the MPEG-2 transmission stream format file, loading the mapping table when the stream media server is started; sending a jumping request containing time graduation to the stream media server by a set top box; searching corresponding TS stream data package number by the stream media according to the time graduation and positioning the subsequently sent TS stream data package as the TS stream data package; sending the stream media sever by starting from the TS stream data package. The technical proposal of the invention can lead the stream media server to use less space cost, realize more precise positioning, thus realizing the jumping function of the MPEG-2 transmission stream.

Description

technical field [0001] The invention relates to the technical field of digital television, in particular to a method for realizing jumping during streaming media playback. Background technique [0002] MPEG-2 is a video and audio compression standard introduced by the Moving Pictures Exports Group (MPEG) in 1994. The MPEG-2 standard is suitable for the coding system required by standard digital TV and high-definition digital TV, and its coding rate ranges from 3M bits to 100M bits per second. MPEG-2 is especially suitable for broadcast-level digital TV coding and transmission, and is considered to be the coding standard for standard-definition digital TV and high-definition digital TV. MPEG-2 decoders have been widely used in DVDs, digital set-top boxes and digital TVs at present. [0003] In order to synthesize one or more audio, video or other basic data streams into a single or multiple data streams and adapt to storage and transmission, the MPEG-2 standard needs to rep...

Claims

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Application Information

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IPC IPC(8): H04N7/24
Inventor 张学识张平张剑寅辛宇
Owner 天地华文(北京)科技有限公司
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