AVS+-based VR panoramic video live broadcast high-speed decoding method and system

A technology of panoramic video and decoding method, which is applied in the field of high-speed decoding method and system of VR panoramic video live broadcast based on AVS+, can solve the problems of slow decoding speed of VR panoramic video and so on.

Inactive Publication Date: 2017-12-08
AVIT
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the AVS+ software decoder in the prior art has a relatively slow decoding speed for VR panoramic video, and propose a high-speed decoding method and system for VR panoramic video live broadcast based on AVS+

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  • AVS+-based VR panoramic video live broadcast high-speed decoding method and system
  • AVS+-based VR panoramic video live broadcast high-speed decoding method and system

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[0030] The present invention will be described in further detail below in combination with specific embodiments and with reference to the accompanying drawings. Wherein the same reference numerals denote the same components, unless otherwise specified. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0031] The present invention provides a high-speed decoding method for VR panoramic video live broadcast based on AVS+. From the perspective of data-level parallel optimization, the single instruction stream and multiple data stream technology is used for modules that are computationally intensive and memory intensive in the decoding process, resulting in serious decoding time-consuming. Perform data parallel optimization. From the perspective of task-level parallel optimization, according to the module time-consuming analysis of the overall decoding process after data-level parall...

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Abstract

The invention provides an AVS+-based VR panoramic video live broadcast high-speed decoding method comprising the steps of: S1: designing an AVS+VR panoramic video decoding architecture; S2: optimizing and adjusting a AVS+ basic entropy decoding process so as to make the AVS+ compatible with a AVS decoding standard; S3: performing data parallel optimization by using single-instruction-flow multi-data-stream technology; S4: performing time-consuming analysis on a overall decoding process module, and achieving parallel optimization of the overall decoding process through multi-core and multi-threaded parallel pipeline design; and S5: completing the fast decoding of a VR panoramic video. The decoding method and system of the present invention, from the perspective of task-level parallel optimization, achieve the parallel optimization of the overall decoding process by using effective multi-core multi-threaded parallel pipeline design according to the module time-consuming analysis of the overall decoding process after the data-level parallel optimization, and shorten the decoding time of a single frame of image to achieve an increase in the overall video sequence decoding rate.

Description

technical field [0001] The invention relates to a video decoding method, in particular to an AVS+-based high-speed decoding method and system for VR panoramic video live broadcast. Background technique [0002] AVS series audio and video standards, as my country's self-developed audio and video codec standards, include four main technical standards of system, video, audio, digital rights management and supporting standards such as conformance testing, providing cost-effective for my country's high-definition digital broadcasting industry Extremely high audio and video codec scheme. This standard has the advantages of my country's independent intellectual property rights, high coding efficiency and low implementation cost, and provides strong technical support for the development needs of my country's information industry. [0003] AVS+ is my country's second-generation source coding standard with independent intellectual property rights. It has the characteristics of low bit...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/129H04N19/13H04N19/124H04N19/51H04N19/82H04N19/122H04N19/587
Inventor 代昆刘睿李建成张新林孙善通
Owner AVIT
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