Video coding and decoding dynamic multiresolution self-adaption paralleling method under multicore environment

Abstract

The invention provides a video coding and decoding dynamic multiresolution self-adaption paralleling method under a multicore environment, which comprises the steps of: analyzing a system task attribute configuration table, determining whether to take a new computing task from a task list or participate in the coding of a high resolution ratio video of an initiator; if the new computing task is taken, analyzing code stream format and resolution ratio, determining whether to initiate multicore parallel decoding for the new computing task; if the multicore parallel decoding is needed, modifying the system task attribute configuration table, issuing a parallel demand; if participating in the decoding computation of the high resolution ratio video of the some initiator, registering core information, modifying the system task attribute configuration table; and managing all cores participating into the current parallel decoding by the initiator, allocating decoding tasks and restoring site after the decoding is completed. The invention can be used for dynamically regulating operating tasks of all cores according to the code stream format and the resolution ratio in the system, thereby obtaining full decoding computing resources for different code stream formats and different resolution ratios, and ensuring the quality and the property of the system.

Description

technical field [0001] The invention relates to the field of video coding and decoding, in particular to a parallel method for dynamic multi-resolution self-adaptation of video coding and decoding in a many-core environment. Background technique [0002] Video decoding applications in complex environments need to process a large amount of data at the same time. These data have multiple stream formats and resolutions. Traditional DSP, FPGA, ASIC hardware units, RISC processors, etc. are difficult to meet performance and multi-format decoding. feature request. [0003] Using 64-core many-core processor technology, using the rich computing resources of many cores, video decoding processing is performed through software, which can meet the application requirements of simultaneously decoding multiple video formats and multiple stream resolutions. Contents of the invention [0004] The purpose of the present invention is to provide a parallel method for controlling the allocati...

AI Technical Summary

Problems solved by technology

[0002] Video decoding applications in complex environments need to process a large amount of data at the same time. These data have multiple stream formats and resolutions. Traditional DSP, FPGA, ASIC hardware units, RISC processors, etc. are difficult to meet performance and multi-format decoding. functional requirements

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