Video decoding data storage method and calculation method of motion vector data

Abstract

The invention provides a video decoding data storage method and a calculation method of motion vector data. The video decoding data storage method includes setting a reference frame queue table in a static random access memory, storing basic information of a plurality of reference frames in the reference frame queue table, wherein each unit of the reference frame queue table stores index information corresponding to one reference frame in a decoding buffer area; storing a plurality of groups of frame buffer information corresponding to the index information in the decoding buffer area, wherein each group of frame buffer information contains frame display sequence data and motion vector storage address information; storing the motion vector storage of each reference frame in a dynamic random access memory, wherein the motion vector storage address information is address information of the motion vector data of a coding tree unit of corresponding blocks of the reference frames stored in the dynamic random access memory. The video decoding data storage method and the calculation method of the motion vector data can improve the video decoding efficiency and save hardware expense and bandwidth resources occupied during video decoding.

Description

technical field [0001] The present invention relates to the field of image data processing, in particular to a storage method of video decoding data and a calculation method of motion vector data realized based on the data storage method. Background technique [0002] As people's requirements for video image quality are getting higher and higher, traditional video encoding and decoding technologies can no longer meet people's requirements for video image quality. With the advancement of video image processing technology, the current video coding and decoding technology is developing in the direction of high resolution, high frame rate and high compression rate. To this end, ITU-T VCEG (Video Coding Experts Group) and ISO / IEC MPEG (Moving Picture Experts Group) jointly established the JCT-VC (Joint Collaborative Team on Video Coding) joint organization to jointly formulate the next-generation coding standard: HEVC ( High Efficiency Video Coding) standard. [0003] The HEVC ...

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Problems solved by technology

Since the motion vector data of the corresponding block is very large, how to make the hardware read these data more efficiently without wasting additional bandwidth has become an urgent problem to be solved

[0011] The Chinese invention patent application with the announcement number CN103444182 provides a method for storing motion information. The method is to store the corresponding motion vector and the identification code of the corresponding block together. This method requires only a small number of identification codes for the hardware. Bits, such as 4-bit data storage, and motion vector data need to be stored from the 16-bit position. This asymmetrical data structure requires reading a large amount of useless data for the hardware, wasting time for reading data.

Moreover, for the identification code, since the reference frame needs to be rearranged after each frame of data is decoded, the calculation process is a large number of sorting calculations. Using integrated circuits to implement these programs will result in a very large area of ​​the circuit board and lead to hardware consumes too much power

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