Video processing method and device

Abstract

The invention provides a video processing method and device, and the method comprises the following steps: obtaining the data of M reference blocks from a reference frame cache, M being a positive integer; when Merge-mode or Skip-mode inter-frame prediction is performed on the N image blocks, determining whether a reference block of each image block in the N image blocks exists from the M reference blocks, and N is a positive integer. Data of M reference blocks are accessed from a reference frame cache in advance, and whether the reference block of each image block in N image blocks exists ornot is determined in the M reference blocks acquired in advance, so that multiple pieces of data required by inter-frame prediction in a Merge mode or a Skip mode can be acquired from the M referenceblocks acquired in advance; therefore, the frequency of requesting data from the reference frame cache can be reduced.

Description

[0001] Copyright statement [0002] The disclosure of this patent document contains material that is protected by copyright. This copyright belongs to the copyright owner. The copyright owner has no objection to the reproduction by anyone of the patent document or the patent disclosure as it exists in the official records and files of the Patent and Trademark Office. technical field [0003] The present application relates to the field of video coding, and more specifically, to a video processing method and device. Background technique [0004] In order to reduce the bandwidth occupied by video storage and transmission, video data needs to be encoded. Prediction is an important link in the video coding process. The purpose of prediction is to obtain a block (which may be called a reference block) closest to an image block, and then subtract the image block from the reference block to obtain a residual. Prediction is divided into intra prediction and inter prediction. The...

AI Technical Summary

Problems solved by technology

Under the HEVC standard, for each PU, data needs to be obtained from the reference frame buffer according to its candidate motion vector, which leads to the need to request data from the reference frame buffer multiple times during the inter-frame encoding of a CTU, which will increase The difficulty of hardware design will also reduce the efficiency of inter-frame prediction

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