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Apparatus and method for video processing

A technology for video processing and post-video, applied in image data processing, components of color TV, components of TV systems, etc., can solve the problems of high power consumption, increased cost, large wiring area of ​​line buffer, etc.

Inactive Publication Date: 2010-02-24
ALI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the device 200, when displaying the rotated image, the DRAM 240 needs to be accessed twice, thus resulting in higher power consumption
[0005] In other known devices for video processing, a line buffer (line buffer) is coupled between the rotation processing unit 220 and the back-end processing unit 230 to store the rotated video frame data S generated by the rotation processing unit 220 rot , in this technology, although the DRAM 240 only needs to be accessed once, the row buffer requires a large wiring area, thus increasing the manufacturing cost

Method used

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Embodiment Construction

[0032] Certain terms are used throughout the specification and appended claims to refer to particular elements. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This description and the appended claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. "Includes" mentioned throughout the specification and appended claims is an open term, so it should be interpreted as "including but not limited to". Otherwise, the term "coupled" includes any direct and indirect means of electrical connection. Therefore, if it is described that a first device is coupled to a second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0033] image 3 It is a schematic...

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Abstract

Apparatus and method for video processing. An apparatus for video processing includes a video decoder, a storage device and a rotation processing unit. The video decoder is utilized for decoding encoded video data to generate video frame data. The storage device is utilized for storing rotated video frame data. The rotation processing unit, which is coupled between the video decoder and the storage device, is utilized for receiving the video frame data before the video frame data generated from the video decoder are stored into the storage device, generating the rotated video frame data according to the video frame data, and then storing the rotated video frame data into the storage device.

Description

technical field [0001] The present invention relates to a device and method for video processing, in particular to a device and method for video processing with low power consumption. Background technique [0002] In a Personal Media Player (PMP), sometimes the displayed image needs to be rotated to match the viewing angle of the user. Therefore, many technologies for displaying the rotated image have been developed. [0003] figure 1 is a schematic diagram of a known device 100 for video processing. like figure 1 As shown, the device 100 includes a video decoder 110 , a backend processing unit 120 and a dynamic random access memory (Dynamic Random Access Memory, DRAM) 130 . In the operation of the device 100, the video decoder 110 receives an encoded video data S in To generate a video frame data S dec And the video frame data S dec is stored in the dynamic random access memory 130, after that, the video decoder 110 reads the video frame data S from the dynamic random...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/91H04N5/14H04N7/26
CPCH04N19/00781H04N7/50H04N19/00533H04N19/00484H04N7/26335G06T3/60H04N7/26882H04N19/00903H04N7/26707H04N19/61H04N19/44H04N19/423H04N19/85
Inventor 纪富中
Owner ALI CORP