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Packaging method of multimedia broadcasting system media data flow

A technology of media data streaming and multimedia broadcasting, which is applied in the direction of digital video signal modification, TV and pulse modulation TV signal transmission, etc. It can solve the problems of not meeting the requirements of mobile multimedia broadcasting services, limited wireless bandwidth of mobile terminals, and reduced transmission rate. , to achieve the effect of reducing overhead, improving efficiency and prolonging the use time

Inactive Publication Date: 2008-05-14
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0007] The existing methods have their own advantages and disadvantages. The RTP method can only be used on the IP network, and the TS method uses a fixed length, resulting in relatively low transmission efficiency, often lower than 90%.
[0008] On the other hand, the wireless bandwidth that the service network can provide to each mobile terminal is very limited, and sufficient transmission rate is required to meet the clear display of the terminal, but the low transmission efficiency will inevitably lead to a decrease in the actual transmission rate, which may not reach the mobile terminal. Service requirements for multimedia broadcasting

Method used

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  • Packaging method of multimedia broadcasting system media data flow
  • Packaging method of multimedia broadcasting system media data flow
  • Packaging method of multimedia broadcasting system media data flow

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Embodiment Construction

[0029] The key of the present invention is that the component mark, the component parameter and the component are combined into a complete encapsulation package, the component mark and the parameter of the component are placed in the package header, and the component is used as the payload of the package. The component flag indicates whether the package contains corresponding component parameters and components.

[0030] The present invention encapsulates one or more components of the multimedia data stream together to realize high efficiency of data transmission, including the following aspects:

[0031] (1) The multimedia broadcasting system has multiple channels, and each channel transmits the media data stream of the channel.

[0032] (2) The media data stream of a channel can include video data components, audio data components, and auxiliary data components. The media data stream can be composed of one or several components. For example, the media data stream only includ...

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Abstract

The invention relates to a method for encapsulation of media data stream in a multimedia broadcasting system, and the media data stream of each channel of the broadcasting system selectively comprises video frequency components, audio frequency components and accessory data components, which comprises the following steps: choosing and encapsulating one or more components among the video frequencycomponents, audio frequency components or accessory data components in need of sending in the data frame of each channel; settling the data and parameters of the selected data components; collocatingthe header and recording the length of the header therein; recording the symbol information and the parameter information of the selected data component type in the header. The method sends multi-media data stream effectively in a channel via the encapsulation components, and sends only the components in need of sending and correspondingly transferring the component broadcasting program needed inthe mobile terminal via the component symbols, which can enhance the sending efficiency, save the mobile terminal power supply and better satisfy the demands of mobile multimedia industry.

Description

technical field [0001] The invention relates to multimedia broadcasting technology, in particular to a method for encapsulating media data streams in a multimedia broadcasting system. Background technique [0002] Mobile multimedia broadcasting is a multimedia playback technology that has emerged in recent years. With a handheld terminal, you can watch TV while moving at high speed. The terminal receives the program list through the wireless protocol, and can select the channel it has the right to watch, so that it can receive the multimedia data of the selected channel, and realize watching TV on the mobile terminal. [0003] The mobile multimedia broadcasting system is divided into different channels, and the media data stream of each channel can include video data components, audio data components, and auxiliary data components, which need to be transmitted on the channels of the mobile multimedia broadcasting system through multiplexing technology, and the terminal can ...

Claims

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Application Information

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IPC IPC(8): H04N7/52H04N7/26H04N7/24H04N19/00H04N21/236
Inventor 晏祥彪沈灿李嵘
Owner ZTE CORP
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