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Program selection method for MPEG TS file playback

A program and file technology, applied in the multimedia field, can solve problems such as low efficiency of multi-program file demultiplexing, difficulty in blindly selecting users, and increased file opening time, so as to avoid unplayable or abnormal playback and improve resolution. Reuse efficiency and the effect of reducing the possibility of errors

Active Publication Date: 2013-09-11
SAMSUNG ELECTRONICS CHINA R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] 2. Method 2 will increase the file opening time due to the method of traversing all programs one by one
[0019] 3. Method 3 will select the program specified by the user to play, but because the user cannot know the relevant information of all the programs in the file before playing, blind selection will bring difficulties to the user's selection, and there are the same problems as method 1
[0020] 4. The efficiency of demultiplexing of multi-program files by current multimedia players is not high enough, especially for files with relatively high video resolution and relatively high bit rate, there is a problem of low demultiplexing performance

Method used

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  • Program selection method for MPEG TS file playback
  • Program selection method for MPEG TS file playback
  • Program selection method for MPEG TS file playback

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Embodiment Construction

[0067] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0068] The main idea of ​​the present invention is: at first, analyze the PAT table and the PMT table in the MPEG TS file, obtain all program information in the file and the flow information in the program; Checking at least includes: checking the integrity of the elementary stream of each program; scoring each program according to the checking result; finally, determining the order in which each program can be selected according to the scoring result.

[0069] After the program sorting is obtained, the sorting result and the completeness information of each program can be provided to the user for reference to make a selection, and the program selected by the user is used as the program to be played; if the user does not select a program, or the media pl...

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Abstract

The invention provides a program selection method for MPEG TS file playback. The method comprises the steps of firstly, conducting an analysis on a PAT list and a PMT list in an MPEG TS file, obtaining all program information and flow information in programs in the file, and conducting classification on the flow information according to the programs; then, respectively conducting checking on each program according to the flow information of each program, wherein the checking at least comprises checking on integrality of basic flow of each program; again conducting grading on each program according to the checked result; finally confirming the successive sequence, capable of being selected, of the programs according to the graded results. With the program selection method, demultiplexing efficiency of the MPEG TS file can be improved, and hardware resources, such as a CPU and an internal storage can be saved.

Description

technical field [0001] The invention relates to multimedia technology, in particular to a program selection method for MPEG TS file playback. Background technique [0002] The MPEG (Moving Pictures Experts Group) protocol stipulates that MPEG TS (Transport Stream) files are composed of TS packets. Each TS packet has a fixed length of 188 bytes and is divided into two parts: header and payload. The packet header mainly includes a sync byte, PID (Packet Identifier, packet identifier) ​​and other information. The sync byte is used to indicate the start of a TS packet (the value is 0x47), and the PID indicates the type of the TS packet. For example: the video stream in a program consists of some TS packets with the same PID, and the receiving end only needs to receive the TS packets with this PID to combine to obtain the video of the program. The packet payload is the actual content of the packet. Depending on the specific situation, a packetized elementary stream (PES, Packeti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/434H04N21/44
Inventor 陈亮李春林
Owner SAMSUNG ELECTRONICS CHINA R&D CENT