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Image decoding method and device

A technology of image and decoding capabilities, applied in the field of image decoding, can solve problems such as waste of CPU computing power, achieve the effect of ensuring synchronization and improving decoding efficiency

Active Publication Date: 2016-02-17
ALIBABA GRP HLDG LTD
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  • Claims
  • Application Information

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Problems solved by technology

This process will cause the CPU to wait idle during the decoding time of the GPU, which will eventually lead to a waste of CPU computing power in this processing time.

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

[0027] In the embodiment of the present application, in order to improve the efficiency of image decoding, a joint decoding method of CPU and GPU may be adopted. In specific implementation, a single image can be decomposed into multiple decoding tasks, and the decoding tasks can be allocated according to the decoding capability ratio of the CPU and GPU in the current terminal device when decoding images, so that the CPU and GPU can be guaranteed as much as possible The synchronization during decoding avoids the situat...

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Abstract

The invention discloses an image decoding method and device, wherein the method comprises the following steps: receiving a request for decoding an appointed image; decomposing the appointed image into multiple decoding tasks; determining the decoding capability information of a central processing unit CPU and the decoding capability information of a graphic processing unit GPU of current terminal equipment respectively during image decoding; and distributing the multiple decoding tasks to the CPU and the GPU to perform parallel processing according to the decoding capability ratio of the CPU to the GPU. By means of the invention, the image decoding efficiency can be increased.

Description

technical field [0001] The present application relates to the technical field of image decoding, in particular to a method and device for decoding images. Background technique [0002] At present, in many mobile terminal application programs, image decoding and rendering is also a frequently used processing technology. Especially for mobile applications such as Taobao and Tmall, which are used to display products, pictures carry very important information about products, because they can provide customers with very intuitive and fast information, and can show the overview or details of products from different angles information. However, since the processing power of the CPU (generally ARM) used by current mobile devices is still far behind that of PCs, and mobile devices are more sensitive to power consumption, how to make mobile terminals The application quickly decodes the image, which becomes a very critical part in the process of rendering it to the screen by the mobi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/436H04N19/42
CPCG06F9/50H04N19/436
Inventor 何正军陈国权周必奎
Owner ALIBABA GRP HLDG LTD
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