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Video decoder, video encoder and shared storage device

A storage device, video coding technology, applied in the direction of digital video signal modification, image communication, electrical components, etc.

Active Publication Date: 2018-07-31
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a video encoder / decoder is designed to support different video coding standards, generally speaking, multiple memories will be used for scanning / anti-scanning of different video coding standards, and generally multiple memories will be used for quantization / dequantization of different video coding standards, however, such a video encoder / decoder design is not cost-effective

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  • Video decoder, video encoder and shared storage device
  • Video decoder, video encoder and shared storage device
  • Video decoder, video encoder and shared storage device

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Embodiment Construction

[0096] Certain terms are used throughout the specification and following claims to refer to particular components. It should be understood by those skilled in the art that hardware manufacturers may refer to the same component by different terms. This description and the following 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. The "comprising" mentioned throughout the specification and subsequent claims is an open term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" here includes any direct and indirect means of electrical connection. Therefore, if it is described in the text that a first device is coupled to a second device, it means that the first device can be directly electrically connected to the The second device, or indirectly electrically connected to the second device through other devices or connection mean...

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Abstract

The video decoder includes a first processing circuit and a second processing circuit. The shared storage device can be accessed by the first processing circuit and the second processing circuit. The first processing circuit is used for performing a first decoding operation according to data access of the shared storage device. The second processing circuit is used for performing a second decoding operation according to the data access of the shared storage device. The first decoding operation is at least a part of a first decoding function conforming to a first video coding standard, and the second decoding operation is at least a part of a second decoding function conforming to a second video coding standard, And the first video coding standard is different from the second video coding standard.

Description

【Technical field】 [0001] The present invention relates to the design of a video decoder and a video encoder, especially a video decoder with a shared storage device for decoding functions of different video coding standards to access, and a shared storage device for different video encoding standards. The encoding function of the encoding standard is accessed by the video encoder and the associated shared storage device. 【Background technique】 [0002] Traditional video coding standards generally adopt block-based coding techniques to utilize redundant information in space and time. For example, the basic operation will frame an entire source image ( The source frame) is divided into multiple blocks, prediction is performed for each block, the residual value of each block is transformed (transform), and then quantization, scan and Entropy encoding. In addition, the reconstructed frame will be generated in a coding loop to provide reference pixel data for coding subsequent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/44H04N19/174H04N19/129H04N19/124H04N19/70
CPCH04N19/70H04N19/12
Inventor 邱銘豪張永昌
Owner MEDIATEK INC