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Method for converting transmission stream program to China mobile multimedia broadcasting program

A technology of multimedia broadcasting and China Mobile. It is applied in the field of converting transport stream programs into China Mobile multimedia broadcasting programs. It can solve problems such as inability to convert TS programs and achieve the effect of protecting equipment.

Inactive Publication Date: 2008-05-14
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the direct conversion of TS programs into CMMB (China Mobile Multimedia Broadcasting) programs cannot be realized in the existing broadcast television network

Method used

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  • Method for converting transmission stream program to China mobile multimedia broadcasting program
  • Method for converting transmission stream program to China mobile multimedia broadcasting program
  • Method for converting transmission stream program to China mobile multimedia broadcasting program

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] like figure 1 As shown, the conversion from TS to multiplexed frames is to extract the video PES (packed elementary stream) package and audio PES (packed elementary stream) package in the TS stream respectively according to the PID (packet identifier) ​​in the TS, and then remove the PES header, take out the ES (Elementary Stream) packet, and repackage it into video data unit and audio data unit in the multiplexing frame. Usually, one PES packet can be divided into one or more video data units and audio data units. At the same time, the PTS (presentation time stamp) or DTS (decoding time stamp) of the Option header of the PES is correspondingly converted into the display time of the video data block and the audio data block, so as to realize the synchronization of video and audio playback.

[0028] like figure 2 As shown, the encoder outputs the H.264 transport stream and sends it to the transcoder. The transcoder does not need to convert the source compression algori...

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Abstract

The invention discloses a method for converting a transport stream program into a China Mobile multimedia broadcasting program. Take out the packaged basic code stream package from the stream package; when the transport stream forms a complete packaged basic code stream, take out the packaged basic code stream package from the MPIC transport stream package, and extend the packaged basic code stream to the display time in the header stamp or decoded timestamp, and convert it into the timestamp in the multiplexed frame; take out the elementary stream packet in the packaged elementary code stream, and fill the video elementary stream packet into the video unit according to the requirements of the China Mobile Multimedia Broadcasting Multiplexing Protocol, or Fill the audio elementary stream packet into the audio unit, form a multiplex frame within the set time; encapsulate the multiplex frame and send it.

Description

technical field [0001] The invention relates to a mobile multimedia broadcasting or mobile phone TV technology, in particular to a method for converting a transport stream program into a China Mobile multimedia broadcasting program. 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 air data transmitted by the system is divided into different channels. The data of each channel includes three types: video, audio and auxiliary data. The terminal can receive the relevant data, and realize the normal broadcasting of the TV through the player on the terminal. [0004] There are mul...

Claims

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Application Information

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IPC IPC(8): H04N7/52H04N7/24
Inventor 沈灿张建强李嵘王志英晏祥彪陈军文海龙
Owner ZTE CORP
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