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Multi-program multiplexing method and equipment

A multiplexing device and multi-program technology, applied in the field of multi-program multiplexing methods and equipment, can solve problems such as waste of bandwidth resources, and achieve the effect of saving bandwidth and strong personalization

Inactive Publication Date: 2011-06-15
深圳速浪数字技术有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0004] However, in many cases, these programs loaded are not all necessary, which causes a waste of bandwidth resources, which is where the prior art needs to be improved.

Method used

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  • Multi-program multiplexing method and equipment
  • Multi-program multiplexing method and equipment

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Embodiment Construction

[0023] The features and technical content of the present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments. The drawings are only used to explain the invention and not to limit it.

[0024] Such as figure 1 As shown, it is a schematic flow chart of an embodiment of a multi-program multiplexing method of the present invention, and the method may include:

[0025] S1. Obtain a multi-program transport stream. Here, the multi-program transport stream may be multiple channels;

[0026] S3. According to the preset program list, extract the program audio and video stream corresponding to the program list from the multi-program transport stream;

[0027] Specifically, step S3 may include:

[0028] Obtain a program association table (PAT, namely Program Association Table), program mapping table (PMT, namely Program Map Table); according to the preset program list, extract the program association table and program mappin...

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Abstract

The invention discloses a multi-program multiplexing method, which comprises the following steps of: acquiring a multi-program transmission stream; extracting a program audio and video stream corresponding to a program list from the multi-program transmission stream according to the preset program list; and multiplexing the extracted program audio and video stream to preset frequency points. Correspondingly, the invention also discloses multi-program multiplexing equipment. The technical scheme provided by the invention has the advantages of flexibly multiplexing all or a part of programs in the multi-program transmission stream and simultaneously saving bandwidth, along with high personality and the like.

Description

technical field [0001] It relates to the field of digital and IP television, in particular to a multi-program multiplexing method and equipment. Background technique [0002] In a digital TV system, in order to make full use of limited bandwidth resources, multiple programs are usually multiplexed to the same frequency point. The multiplexed program source can be a single program transport stream (SPTS, that is, Single Program Transport Stream), or it can be Multi-program transport stream (MPTS, that is, Multi Program Transport Stream). [0003] When the program source to be multiplexed is a multi-program transport stream, the existing multiplexer usually loads all the programs in the multi-program transport stream to a certain frequency point for modulation and then transmits. [0004] However, in many cases, these loaded programs are not all necessary, which causes a waste of bandwidth resources, and this is where the prior art needs to be improved. Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/236H04N21/2362
Inventor 王宏远徐玲江威王亚峰涂重文黄育雄
Owner 深圳速浪数字技术有限公司
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