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A packaging sequence control method for generating ts stream

A technology of sequential control and conditions, applied in image communication, selective content distribution, electrical components, etc., can solve problems such as non-compliance with digital TV convection online requirements, monitoring, etc.

Active Publication Date: 2019-01-29
CHENGDU SOBEY DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the TS streams generated by most open source tools cannot pass the monitoring of bit stream analysis tools, and the generated TS streams do not meet the online requirements of digital TV convection

Method used

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  • A packaging sequence control method for generating ts stream

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Embodiment Construction

[0041] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0042] Such as figure 1 Shown, a kind of packing order control method that generates TS flow, comprises the following steps:

[0043] S1. Start to generate TS stream;

[0044] S2. Determine whether the audio and video are packaged:

[0045] (1) The audio and video packaging is completed, and the packaging is completed;

[0046] (2) audio and video packaging is not completed, enter step S3;

[0047] Audio and video packaging is complete, that is, all audio and video data has been packaged; first, all audio and video data has been packaged, and secondly, the program time of the TS package is greater than the maximum playback time stamp of the audio and video data. After the two conditions are met, the packaging task ends to ensure All aud...

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PUM

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Abstract

The invention discloses a packing sequence control method generating TS flows. The method comprises steps that data types satisfying packing conditions are firstly determined according to the sequence of PSI, PCR, audios, videos and empty packets, TS packets of the types are then generated, and TS flows satisfying standards are finally generated; after each TS packet is generated, the data of which the playing time is smaller than the program time corresponding to the TS packets is deleted through a simulation decoding buffer; when each audio TS packet is generated, an audio decoder buffer is simulated, and the audio decoder buffer is guaranteed to be greater than the audio data amount of the program time of the TS packet; when each video TS packet is generated, a video decoder memory is simulated, the video decoder memory is guaranteed to greater than the video data amount of the program time of the TS packet, and thereby the generated TS flows are made to not generate buffer overflowing during decoding.

Description

technical field [0001] The invention relates to a method for controlling the packaging sequence of a generated TS stream, Background technique [0002] TS stream is one of the types of MPEG-2 formats, and its full English name is (MPEG-2Transport Stream), which is a system layer coding standard commonly used in the field of digital television; TS stream is a continuous stream with a fixed length of 188 bytes. TS packets, through these TS packets, it contains a wealth of stream information. To parse a specific stream, it is first necessary to parse which PID (Packet ID) packets it consists of, and then parse out the corresponding audio and video streams according to the PID; MPEG -2 defines some information tables used to describe the content carried by the transport stream, called the program specific information (PSI) table, including 4 related tables, among which, the program association table PAT and program mapping table PMT are used to determine the current The two mos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/236H04N21/2368H04N21/8547
CPCH04N21/23608H04N21/2368H04N21/8547
Inventor 龚涛郑雪梅刘盾韩志宏
Owner CHENGDU SOBEY DIGITAL TECH CO LTD