Self-adaptive context binary arithmetic encoder and encoding method

Abstract

The encode thereof at least comprises: an arithmetic coding control module, an encoding instruction queue module, a context management and maintenances module, an encoding engine module and an outputted bits packaging module. The invention also reveals a context self-adaptive arithmetic encoding method which comprises: processing the external command, syntactic element and adjacent block information to generate an output bit-stream.

Description

technical field [0001] The invention relates to the field of digital video processing, in particular to a context adaptive binary arithmetic encoder and an encoding method thereof. Background technique [0002] With the continuous development of the audio and video industry, the international requirements for audio and video codec technology are also increasing, and there are MPEG-x (including MPEG1, MPEG2, MPEG4), H.26x (including H. , H.264) two major series of video coding international standards. The above-mentioned international standards for video coding can efficiently compress video signals with a huge amount of information while maintaining the subjective quality of the video, thereby greatly reducing storage space and network bandwidth requirements. [0003] Among them, the entropy coding technology module is an important module in the above-mentioned international standard of video coding, which can effectively remove the statistical information redundancy in the...

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Problems solved by technology

[0006] In view of this, the object of the present invention is to provide an encoder and its encoding method that uses an integrated circuit to implement context-adaptive binary arithmetic encoding, so as to solve the problems caused by complex entropy encoding operations and excessive computational load in video encoding. The problem of low entropy coding speed, so as to improve the video coding speed

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