Method for multiplexing program stream (PS) paths into transport stream (TS) path based on moving picture experts group (MPEG)-2

An MPEG-2, one-way technology, applied in the direction of image communication, selective content distribution, electrical components, etc., can solve the problem of unable to transmit digital TV program channels

Inactive Publication Date: 2011-06-22
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, audio and video data in DVD discs are stored in the form of PS streams (Program Streams) after encoding and compression using the MPEG-2 standard, and cannot be directly used for digital TV program channel transmission.

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  • Method for multiplexing program stream (PS) paths into transport stream (TS) path based on moving picture experts group (MPEG)-2
  • Method for multiplexing program stream (PS) paths into transport stream (TS) path based on moving picture experts group (MPEG)-2
  • Method for multiplexing program stream (PS) paths into transport stream (TS) path based on moving picture experts group (MPEG)-2

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Embodiment Construction

[0039]The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] The method for multiplexing multiplexed PS streams based on MPEG-2 of the present invention into one TS stream is divided into four major steps:

[0041] A) First copy the PES packet from a PS stream read from a DVD disc;

[0042] B) Then convert the copied PES package to TS package;

[0043] C) Through steps A) and B) respectively copy out PES packets from one PS stream read from one DVD disc as the source of digital TV programs and convert them into TS packets; wherein, I≥1;

[0044] D) Complete the multiplexing process to form a TS stream.

[0045] The implementation methods and functions of the above steps will be described in detail below.

[0046] A) The specific steps for copying out PES packets from a PS stream are as follows:

[0047] a1) Calculate the number of bytes of each PS packet. The principle is to c...

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Abstract

The invention provides a method for multiplexing a plurality of paths of program streams (PS) into a path of transport steam (TS) based on moving picture experts group (MPEG)-2, which comprises the four main steps of: A) copying packetized elementary streams (PES) from a path of PS read from a digital video disk (DVD); B) converting the copied PESs into TS packets; C) copying the PESs from the plurality of PSs read from I DVDs as digital television program sources respectively, and converting the PESs into TS packet by the steps A) and B); and D) performing multiplexing processing to form the path of TS. By the method for multiplexing the plurality of paths of program streams (PS) into the path of transport steam (TS) based on the (MPEG)-2, the conversion and the multiplexing from the PSs to the TS are realized in an MPEG-2-standard system layer, audio and video data stored in the DVD in form of PS can be converted into the TS for producing digital television programs, and a novel convenient approach is provided for the production of the digital television programs.

Description

technical field [0001] The invention relates to the technical field of communication data processing, in particular to a method for multiplexing multiple PS streams based on MPEG-2 into one TS stream. Background technique [0002] Digital TV broadcasting system is the most widely used digital image information communication system at present. The digital TV broadcasting system adopts the DVB standard (Digital Video Broadcasting, digital video broadcasting standard) as the digital TV program channel transmission standard, and the DVB standard selects the MPEG-2 standard as the encoding and compression method of audio and video, and encodes one source into an ES stream (Elementary Stream, basic code stream) is packaged to form PES packets (Packetised Elementary Streams, basic code stream packets), and then the PES packets are converted into TS packets through conversion processing, and the ES streams of each channel as the source of TV programs are converted. TS packets are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/236H04N21/242
Inventor 黄扬帆甘平季小康黄发林建王璐
Owner CHONGQING UNIV
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