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Method and apparatus for performing wave-front parallel encoding procedure with constraint on one or both of coding mode and quantization parameter selection

An encoding method and encoding program technology, applied in the field of wavefront parallel encoding programs, can solve problems such as high encoding speed

Inactive Publication Date: 2016-09-07
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So for entropy encoding more processor cores does not mean higher encoding speed

Method used

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  • Method and apparatus for performing wave-front parallel encoding procedure with constraint on one or both of coding mode and quantization parameter selection
  • Method and apparatus for performing wave-front parallel encoding procedure with constraint on one or both of coding mode and quantization parameter selection
  • Method and apparatus for performing wave-front parallel encoding procedure with constraint on one or both of coding mode and quantization parameter selection

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Embodiment Construction

[0018] Throughout the specification and claims, certain terms are used to refer to particular components. As will be understood by those skilled in the art, manufacturers may use different names to refer to a certain component. This document does not attempt to distinguish between those parts that may have the same function but have different names. In the following description and claims, the terms "comprises" and "comprises" are used in an open-ended manner and should therefore be construed as "including, but not limited to...". Likewise, the term "coupled" may mean both an indirect electrical connection and a direct electrical connection. Thus, if a device couples to another device, that connection may be through a direct electrical connection or through an indirect electrical connection through other devices and connections.

[0019] The main content of the present invention is to enable the wavefront parallel coding mechanism to perform the entropy coding function in fr...

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Abstract

An encoding method includes following steps: performing a wave-front parallel encoding procedure for encoding pixel data of a frame partition, wherein the frame partition comprises a plurality of block rows, each of the block rows comprises a plurality of blocks, and each of the blocks comprises a plurality of pixels; and imposing constraint on a coding mode selection of a first block of a first block row.

Description

[0001] priority statement [0002] This application claims priority to US Provisional Patent Application No. 62 / 021,786, filed July 8, 2014. The relevant patent applications are incorporated by reference in their entirety in this application. technical field [0003] The present invention relates to video coding, and more particularly, to a method and apparatus for implementing wave-front parallel encoding with restricted coding mode and / or quantization parameter selection. Background technique [0004] Traditional video coding standards usually use block-based coding techniques to exploit spatial and temporal redundancy. For example, the basic approach is to divide the entire source frame into blocks, perform prediction in each block, use discrete coefficient transform to convert the redundancy of each block, and perform quantization and entropy coding. In addition, a reconstructed frame is generated in an encoding cycle to provide reference pixel data for encoding subse...

Claims

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Application Information

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IPC IPC(8): H04N19/91H04N19/96
CPCH04N19/103H04N19/124H04N19/146H04N19/167H04N19/176H04N19/436H04N19/172H04N19/182
Inventor 吴东兴周汉良李坤傧
Owner MEDIATEK INC