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Method and system for realizing cycle operation based on CTU (Coding Tree Unit) buffers

A coding tree unit and operation method technology, applied in the field of video coding and decoding, can solve problems such as low efficiency, achieve the effects of improving design performance, providing video decoding efficiency, and realizing CTU pipeline operation

Active Publication Date: 2015-09-30
FUZHOU ROCKCHIP SEMICON
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Problems solved by technology

[0003] The original HEVC codec design scheme is to use two modules to perform time-sharing operations on the same coding tree unit CTU Buffer (encoder), which is inefficient.

Method used

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  • Method and system for realizing cycle operation based on CTU (Coding Tree Unit) buffers
  • Method and system for realizing cycle operation based on CTU (Coding Tree Unit) buffers

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Embodiment Construction

[0015] see figure 1 As shown, a method for implementing round-robin operation based on coding tree unit CTU buffer of the present invention, the method includes a data reconstruction module, a data filtering module, and an adaptive sample point compensation module, and the method also needs to provide a cache operation control module and Four coding tree unit CTU buffers; the cache operation control module characterizes which module operation each coding tree unit CTU buffer is in through the cache block count state and the cache block state control signal; the cache operation control module performs data re- The construction module, the data filtering module, and the adaptive sample point compensation module allocate the use of the four coding tree units CTU buffer; the cache operation control module is used to execute the data reconstruction module, the data filtering module, and the adaptive sample point compensation module Allocate the use of the four coding tree unit CTU ...

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Abstract

The invention provides a method for realizing cycle operation based on CTU (Coding Tree Unit) buffers. A system comprises a data reconstruction module, a data filter module and a self-adaptive sampling point compensation module; the method also needs to provide a buffer operation control module and four CTU buffers; the buffer operation control module is used for representing that each CTU buffer is operated in which module through a buffer block counting state and a buffer block state control signal, and thus the data reconstruction module, the data filter module and the self-adaptive sampling point compensation module are executed to distribute the use of the four CTU buffers through the buffer operation control module. The invention also provides the system for realizing the cycle operation based on the CTU buffers. According to the method and the system, provided by the invention, the cycle operation is realized by utilizing the four CTU buffers, CTU-stage pipeline operation is realized, thus data writing is accelerated, and the video decoding efficiency is increased.

Description

technical field [0001] The present invention relates to the technical field of video encoding and decoding, and in particular to a method and system for implementing a rotation operation based on a coding tree unit (CTU) buffer. Background technique [0002] In the HEVC video codec design, there will generally be data interaction based on the CTU level between the post-stage data reconstruction module (recon), data filtering module (deblocking), and adaptive sample point compensation (sao) module. [0003] The original HEVC codec design scheme is to use two modules to perform time-sharing operations on the same coding tree unit CTU Buffer (encoder), which is inefficient. Contents of the invention [0004] One of the technical problems to be solved by the present invention is to provide a rotation operation method based on the CTU buffer of the coding tree unit, realize the rotation and time-sharing operation of the three modules on the CTU, realize the CTU pipeline level o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/96H04N19/42
Inventor 张明懿张旭周为
Owner FUZHOU ROCKCHIP SEMICON
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