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Multi-path media synchronous display control method

A control method and media technology, applied in the direction of pulse modulation TV signal transmission, TV, electrical components, etc.

Inactive Publication Date: 2009-07-22
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method solves the synchronization problem of the media after decoding and before presentation

Method used

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  • Multi-path media synchronous display control method
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  • Multi-path media synchronous display control method

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Embodiment Construction

[0055] For a multi-channel media group S that needs to be presented synchronously, the n-channel media objects contained in it are respectively recorded as s 1 ,s 2 ...s n ; for any media object s i , its importance in the media group is expressed as p i , its value indicates the impact of this media channel on the final presentation quality of this media group. for the media i ,s j , i≠j, the synchronization between them requires a threshold of r ij (r ij >0), when the synchronization time difference between the two is less than r ij Synchronization works well when , and its minimum value counts as the minimum permissible synchronization difference, ie, d min =min(r ij ), i, j ∈ 1...n. During the actual playback process, at any moment the media object s i The current presentation time pts is t i . The multi-channel media synchronization control mechanism consists of two parts: a media presentation module and a synchronization main control module. For a multi-cha...

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Abstract

The invention discloses a multi-channel media synchronous presentation control method, which mainly solves the problem of time synchronization when presenting multi-channel media that needs to be played synchronously. Performing differentiated synchronous presentation control according to the importance of different media and different synchronization requirements between media can improve the effect of multi-channel media presentation. In the multi-channel media presentation process, the media with high importance and high synchronization requirements are given priority, and the existing synchronization solutions do not consider the limitations of media importance and synchronization requirements between various channels. The present invention is applicable to presentation synchronization control between two or more than two channels of any type of media.

Description

technical field [0001] The invention belongs to the field of computer applications, and mainly relates to a synchronous control method for multi-channel media, in particular to a multi-channel media synchronous presentation control method. Background technique [0002] Multimedia technology has been widely used, but the current multimedia technology is mainly oriented to on-demand and live broadcasting of single-channel media. With the development of technology, the application of multi-channel stream will gradually enter people's field of vision. In the process of capturing, transmitting and presenting multi-channel media, the synchronization problem is an inevitable problem to be solved. In the current research, there is no corresponding consideration of the characteristics of various media and the different requirements for synchronization between media in practical applications. [0003] For the media synchronization control method, the applicant obtained 6 documents c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/62H04N7/60H04N7/52
Inventor 郑庆华刘均彭挺伍洋杨冬张帆姜山张之明杜海鹏
Owner XI AN JIAOTONG UNIV