Intra predictor structure in multimode video decoder

Abstract

The invention discloses an intra predictor structure in a multimode video decoder. The structure comprises: a programmable control unit, a programmable processing unit and a reconstruction unit. The programmable control unit completes a loading and control operation of a reference pixel and outputs a reference pixel value and control information to the programmable processing unit. The programmable processing unit completes interpolation prediction of the pixel and outputs a predicted value and positional information to the reconstruction unit. The reconstruction unit completes reconstruction of the pixel. In the invention, a programmable mode is used and is compatible to all the intra prediction modes in various kinds of present standards. An area is small, costs are low, flexibility is good and power consumption is low. Portable mobile applications have strict restrictions to the area, the costs and the power consumption. By using the structure, the above problem can be solved. And an urgent demand for the multiple-standard compatible structure can be satisfied.

Description

technical field [0001] The invention relates to the technical field of multimedia video, in particular to an intra-frame predictor structure in a multi-mode video decoder, which is suitable for applications with strict requirements on area cost and power consumption, especially portable mobile applications. Background technique [0002] In order to meet people's increasingly extensive digital media application requirements, a series of new-generation video compression coding standards have emerged. The H.264 / AVC standard is a new generation of video compression coding standard jointly formulated by the International Telecommunications Union (ITU-T) Video Coding Experts Group (VCEG) and the International Organization for Standardization (ISO / IEC) Moving Picture Experts Group. AVS is China's independent knowledge The latest generation of audio and video compression coding standards. Therefore, multi-standard compatibility has become a current application requirement. [0003...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the disadvantages of high power consumption and low resource utilization of traditional programmable DSP solutions, and the large area and poor flexibility of traditional ASIC and FPGA solutions, the main purpose of the present invention is to provide a multi-mode video decoder. The predictor structure is compatible with all intra-frame prediction modes in various existing standards, and has the characteristics of good flexibility, small area, low cost, low power consumption and low power consumption

Images