Video coding and decoding system, method and device based on block recombination, terminal and medium

Abstract

According to the video coding and decoding system, method and device based on block recombination, the terminal and the medium provided by the invention; by changing the packaging sequence of the video data blocks, error propagation among the data blocks is reduced, and the damage of data packet damage and loss to video quality in network transmission can be reduced; under the condition of the same packet loss rate, objectively, the average peak signal-to-noise ratio value of a video picture restored by a receiving end is higher under most conditions; subjectively, the area of a defect region in a video picture is smaller, and large-area strip-shaped defects are converted into scattered small block defects. The method is obtained by adding new steps on the basis of an existing video coding and decoding algorithm, so that the method is wide in application range and is not limited to a certain specific video coding and decoding algorithm, and the video coding and decoding algorithm meeting the Internet video coding standard can be applied to improve the effect of the method. Due to the fact that the anti-error-code effect is achieved through reordering of the data blocks, redundant information is not added, and the network transmission capacity is saved.

Description

technical field [0001] The present invention relates to the technical field of video processing, in particular to a video codec system, method, device, terminal and medium based on block recombination. Background technique [0002] In recent years, there have been more and more video contents on the mobile Internet. Due to the huge amount of data in the original video images, video compression and encoding must be performed before they can be stored on computer storage media or transmitted in the network. Original video footage. [0003] Existing video coding algorithms have largely considered the correlation between the pictures of various parts of the video, so the data blocks obtained after coding also have strong dependencies. Wherein, a series of continuous video pictures having dependencies in encoding constitute a Group of Pictures (GOP). When the decoding algorithm decodes a data block, it is required that the previous data blocks have been correctly obtained and d...

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Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a video codec system, method, device, terminal and medium based on block recombination, which is used to solve the problem of greatly reducing the video picture quality due to network data loss in the prior art. The problem

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