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A Statistical Multiplexing Coding Method for Digital TV

A statistical multiplexing and digital TV technology, applied in the field of video statistical coding, can solve the problems of complex algorithm implementation, and achieve the effect of simple operation, easy implementation and low cost

Active Publication Date: 2019-02-05
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the algorithm implementation is very complex

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  • A Statistical Multiplexing Coding Method for Digital TV

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0021] refer to figure 1 , the statistical multiplexing coding method of digital television of the present invention comprises the following steps:

[0022] 1) encoding each precoding transmission video in the multi-channel precoding transmission video into a code stream of multiple encoding quality levels with the same GOP structure;

[0023] 2) buffering the code streams of various coding quality levels encoded in step 1);

[0024] 3) According to the total transmission video bandwidth, select a code stream of an appropriate coding quality level in each code stream corresponding to each precoded transmission video;

[0025] 4) send out the code stream of the appropriate coding quality level corresponding to each precoding transmission video selected in step 3);

[0026] 5) Repeat steps 1), 2), 3) and 4) until all video transmissions are completed, and the statist...

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Abstract

The invention discloses a statistical multiplexing coding method of a digital television. The statistical multiplexing coding method comprises the following steps of: 1) coding each pre-coding sending video in a plurality of paths of pre-coding sending videos with an identical GOP structure to form code streams of a plurality of coding quality levels; 2) caching the code streams of the plurality of coding quality levels coded in the step 1); 3) according to a total sending video bandwidth, selecting the code streams of the suitable coding quality level in the code streams corresponding to the plurality of paths of pre-coding sending videos; 4) sending out the code streams of the suitable coding quality level corresponding to the plurality of paths of pre-coding sending videos; and 5) repeating the steps 1), 2), 3) and 4) until all the videos are sent out, and completing the statistical multiplexing coding of the digital television. According to the invention, the statistical multiplexing coding of the digital television is realized, and the operation is relatively simple.

Description

technical field [0001] The invention belongs to the field of video statistical coding, and relates to a statistical multiplexing coding method for digital television. Background technique [0002] In digital TV statistical multiplexing coding, most of the current methods are to encode each coded video into a code stream, and control the code rate of each coded code stream through calculation and analysis. But the algorithm implementation is very complicated. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to overcome the above shortcomings of the prior art, and to provide a statistical multiplexing coding method for digital TV, which can realize the statistical multiplexing coding of digital TV, and the operation is relatively simple. [0004] In order to achieve the above object, the statistical multiplexing coding method for digital television of the present invention comprises the following steps: [0005] 1) encoding each precoding transmiss...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/2365H04N21/4385H04N21/462
CPCH04N21/2365H04N21/4385H04N21/4621
Inventor 曹俊沈雪峰樊炜符均陈伟
Owner XI AN JIAOTONG UNIV