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Method and apparatus for testing and analyzing AVS video-frequency basic flow

A video basic stream, test and analysis technology, applied in the direction of digital video signal modification, TV, electrical components, etc., can solve the problems of error-prone and low efficiency, achieve simple and standardized test work, and reduce the effect of manual test and analysis work

Inactive Publication Date: 2009-10-07
深圳市迪威迅股份有限公司
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Problems solved by technology

[0005] An object of the present invention is to overcome the low efficiency and error-prone defects in the prior art that the AVS code stream test is realized by manual analysis, and provides a kind of AVS video elementary stream test and analysis equipment to realize comprehensive testing and analysis of the AVS code stream

Method used

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  • Method and apparatus for testing and analyzing AVS video-frequency basic flow
  • Method and apparatus for testing and analyzing AVS video-frequency basic flow
  • Method and apparatus for testing and analyzing AVS video-frequency basic flow

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Embodiment Construction

[0041] The method and corresponding equipment of the present invention will be described below with reference to the accompanying drawings and specific embodiments.

[0042] AVS video elementary flow test analysis method of the present invention comprises the following steps:

[0043] Step 10, input the AVS code stream to be analyzed and the corresponding original YUV code stream, if the input AVS code stream is a transport stream, demultiplex the input AVS code stream, and extract the video elementary stream, if the input If it is an AVS video elementary stream, analyze it directly. Transport stream is the multiplexing stream of video elementary stream and audio elementary stream, and the method of the present invention will test and analyze video elementary stream, therefore, before AVS bit stream is analyzed, if input bit stream is transport stream, Then it needs to be extracted from the input code stream by demultiplexing. Demultiplexing is to search the PID value of the...

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Abstract

The method comprises: inputting the AVS bit-stream to be analyzed and the original YUV bit-stream; if the AVS bit-stream is transmission stream, then demodulating the inputted AVS bit-stream to extract the video basic stream; if the inputted is AVS video basic stream, then directly making analysis for it; making analysis for the video basic stream in the AVS bit-stream to real-time display the motion information of image and macro block, sequence summary information in video basic stream, frame summary information and block summary information; and making criterion consistency check for the video basic stream; making log examining for the video basic stream. The invention also includes several batch processing modes for making test analysis.

Description

technical field [0001] The invention relates to the field of monitoring and analyzing AVS video compressed code streams, in particular to a method and device for analyzing and monitoring AVS video elementary streams. Background technique [0002] AVS is the abbreviation of Advanced Video and Audio Standard (Advanced Video and Audio Standard), which is the second-generation source coding standard with China's independent intellectual property rights. AVS is a set of technical standards with a wide range of adaptability, and its advantages are manifested in the following aspects: (1) AVS is an independent standard based on my country's independent innovation technology and international open technology, which properly solves the intellectual property issues; (2) High coding efficiency, 2-3 times higher than MPEG-2 international standard (high-definition TV can reach 3 times or more); (3) low computational complexity, low hardware implementation cost; (4) AVS can save half The a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N19/154
Inventor 刘延伟黄庆明苏荔高文
Owner 深圳市迪威迅股份有限公司
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