Loop wave filtering method and device and mobile multi-medium terminal chip

Abstract

The invention provides loop wave filtering method and device, wherein the method comprises the following steps: a. acquiring a macro block which needs loop wave filtering; b. detecting the sub-block mode of the current macro block and extracting the wave filtering intensities of the edges of a corresponding sub-block; setting the wave filtering intensity of the internal edge of the sub-block intozero; and c. carry out wave filtering on the current macro block according to the acquired wave filtering intensities of different edges. The invention improves the extraction process of wave filtering intensity, and reduces requirements of a loop wave filtering process on system resources; therefore, on the premise of ensuring the subjective effect and the objective quality of code images, the invention simplifies the loop wave filtering process and reduces the requirements of the process on the system resources.

Description

technical field [0001] The invention relates to the technical field of video communication, in particular to a method and device for loop filtering and a video decoding chip for a mobile multimedia terminal. Background technique [0002] With the development of science and technology, the progress of society, and the continuous improvement of people's living standards, people's diversified needs for information consumption have become increasingly obvious. Traditional analog information mobile TV and analog audio broadcasting have been increasingly unable to meet the needs of the public. Digital mobile multimedia has become increasingly widely used by the public. Digital mobile multimedia provides digital audio, video and information services to various portable terminal devices through the wireless broadcasting and TV coverage network. Its terminal products mainly include MP4, mobile phones, GPS, USB receiving sticks, independent receivers, etc. [0003] As we all know, th...

AI Technical Summary

Problems solved by technology

[0007] Although the above-mentioned prior art can better complete the filtering task, in view of the current technological development trend (the decoding process needs to be run on the ARM chip), the loop filtering technology of the prior art has too high requirements on system resources

Because the process of calculating and extracting the filtering intensity of each boundary is relatively complicated and resource-intensive; secondly, using the existing loop filtering technology, it is necessary to perform intensity extraction and filtering operations for each boundary of the 4x4 block, which also consumes more resources.

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