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Intra-frame decoding method and intra-frame decoding module

A decoding method and a decoding module technology, which are applied in the field of decoding, intra-frame decoding methods and intra-frame decoding modules, can solve problems such as difficult control and time-consuming, and achieve the effects of being less error-prone, ensuring effective utilization, and increasing processing bandwidth.

Active Publication Date: 2021-01-12
博流智能科技(南京)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that this block takes a lot of time, and the usual method of multi-flow is to split the flow by line, and control it synchronously by CTU block (not easy to control)

Method used

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  • Intra-frame decoding method and intra-frame decoding module
  • Intra-frame decoding method and intra-frame decoding module
  • Intra-frame decoding method and intra-frame decoding module

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Embodiment Construction

[0034] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] In order to further understand the present invention, the preferred embodiments of the present invention are described below in conjunction with examples, but it should be understood that these descriptions are only to further illustrate the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0036] The description in this part is only for several typical embodiments, and the present invention is not limited to the scope of the description of the embodiments. The mutual replacement of the same or similar prior art means and some technical features in the embodiments is also within the scope of the description and protection of the present invention.

[0037] The present invention discloses an intra-frame decoding method. The intra-frame decoding method includes: obtaining the sy...

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Abstract

The invention discloses an intra-frame decoding method and an intra-frame decoding module. The intra-frame decoding method comprises steps of obtaining an image frame syntax element, and obtaining thenumber n of CTUs (Coding Tree Units) in each row of the image frame syntax element; selecting a corresponding decoding mode for decoding according to the value of n; the CTU row buffer memory enabling each pipeline decoder to obtain own reasonable memory space according to the configuration of the state register; the multistage pipeline decoders sharing the CTU row buffer memory, and the pipelinedecoders deciding the read-in positions of themselves and the decoding starting time according to the configuration of the state register. According to the method, the processing bandwidth of the decoders can be effectively increased, synchronous control between the decoders is effectively reduced, and the intra-frame decoding speed is improved.

Description

technical field [0001] The invention belongs to the technical field of encoding, and relates to a decoding method, in particular to an intra-frame decoding method and an intra-frame decoding module. Background technique [0002] As a new generation of video coding standard, HEVC has more than doubled the compression efficiency compared with the previous generation H.264 standard. HEVC adopts many new technologies to improve the compression rate. [0003] First of all, HEVC innovatively adopts the block method of quadtree, and each block is called a coding unit (CodingUnit, CU). In order to adapt to the larger resolution of UHD, the maximum CU size is 64x64. A CU can be recursively divided into four sub-CUs, and the smallest CU can be up to 8x8. H.264 uses a macroblock as a basic coding unit, and the size of a macroblock can only be 16x16. Therefore, HEVC's block segmentation method is more flexible than H264, with more types of blocks, which can better match various text...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/44H04N19/42H04N19/423H04N19/96
CPCH04N19/44H04N19/42H04N19/423H04N19/96
Inventor 毛智强秦建张平平
Owner 博流智能科技(南京)有限公司
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