Method for real-time decompression display of multiple paths of H.265 videos

A video and decompression technology, which is applied in the field of image processing, can solve the problems of long time delay of multi-channel code streams, etc., and achieve the effects of reducing processing time, optimizing processing efficiency, and reducing work pressure

Pending Publication Date: 2021-11-16
TIANJIN JINHANG COMP TECH RES INST
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is how to provide a real-time multi-channel H.265 video real-time decompression display method to solve the problem that the H.265 video receiver has a large delay when processing multiple streams

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  • Method for real-time decompression display of multiple paths of H.265 videos
  • Method for real-time decompression display of multiple paths of H.265 videos

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Embodiment Construction

[0032] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] The invention belongs to a method for decompressing and displaying real-time multi-channel H.265 video in real time. The H.265 code stream receiver is the last link of the entire video transmission link, which reflects the quality characteristics of the code stream channel. The quality of this link determines the quality of video transmission and directly affects our visual experience. The present invention proposes a solution for a set of H.265 video stream receivers, aiming at improving the efficiency of decoding, transcoding and display output, reducing delay, and controlling the processing time of the whole receiver within 30ms.

[0034] The present invention is based on the current mainstream Ethernet interf...

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Abstract

The invention relates to a method for real-time decompression display of multiple paths of H.265 videos, and belongs to the field of image processing. According to the invention, a Hisilicon Hi3559x series media processing chip is adopted to receive and decode an H.265 video code stream; a VxWorks operating system is operated on the Intel I7 processor, and video transcoding and display output are completed; and data is transmitted between the Hisilicon Hi3559x chip and the Intel I7 processor through a DMA channel of a PCIe bus. When multiple paths of H.265 code streams are processed, the time of the whole receiver from receiving the Ethernet compressed video to decompressing and transcoding to complete video display output does not exceed 30ms, and the processing efficiency of the receiver is optimized. According to the invention, the working pressure of a single chip can be effectively reduced when multiple paths of video streams are input, and the video decoding, transcoding and displaying efficiency is improved, so that the processing time of the link is reduced.

Description

technical field [0001] The invention belongs to the field of image processing, and in particular relates to a method for decompressing and displaying real-time multi-channel H.265 video in real time. Background technique [0002] The H.265 standard is developed on the basis of the H.264 standard. Compared with the former, H.265 improves the coding efficiency, reduces the code stream, reduces the channel delay, improves the error recovery capability, and reduces the complexity of the algorithm. Spend. [0003] With the rapid development of the digital video application industry chain, video applications continue to develop in the direction of high definition, high frame rate, high compression rate, and high real-time performance. Under this trend, as a new generation of video coding standard, H.265 is more and more widely used, and the fields involved include IPTV, security monitoring, streaming media projection, and video display terminals. [0004] In practical applicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/40H04N19/44H04L29/06
CPCH04N19/40H04N19/44H04L65/80H04L65/75
Inventor 唐亮刘玉宾
Owner TIANJIN JINHANG COMP TECH RES INST
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