Hevc-based dvfs control method, system, processor and storage device

A control method and manager technology, applied in the field of video codec, can solve the problems of H.265/HEVC decoding workload changes, lack of solutions, etc.
CN107465929BActive Publication Date: 2019-02-01SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2019-02-01

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Abstract

The invention relates to an HEVC-based DVFS control method and system, a processor and a storage device. The method comprises the following steps: performing decoding in cooperation with HEVC based on a CPU and a GPU in the manner of a streamline, performing entropy decoding on a binary bit stream input by a decoder, assigning decoder parameters, estimating the number of TU of a video frame i, analyzing an inverse transformation coefficient matrix, and inputting the inverse transformation coefficient matrix to a workload prediction module; on each synchronous node of the CPU and the GPU, predicting the working frequency of the CPU and the working frequency of the GPU by the workload prediction module based on the number of TU of the video frame i estimated by the entropy decoding, and inputting the working frequency of the CPU and the working frequency of the GPU to a frequency manner; adjusting the set working frequency of the CPU and the set working frequency of the GPU according to the number of the decoded video frames in a frame cache, and inputting the set working frequency of the CPU and the set working frequency of the GPU to a regulator; and setting the frequency of the CPU according to the final working frequency of the CPU by the regulator, and setting the frequency of the GPU according to the final working frequency of the GPU, and continuing to decode by the CPU and the GPU at the set frequency.
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Description

technical field

[0001] The present invention belongs to the technical field of video encoding and decoding, and in particular relates to an HEVC-based DVFS control method, system, processor and storage device. Background technique

[0002] With the development of network technology, video applications have entered all aspects of people's lives. Cisco pointed out in its white paper of the Visual Network Index Program that by 2020, 1 million minutes of video content will flow through the network every second, and the global IP video Traffic increased to 82% of all IP traffic (business and consumer)[i]. With the continuous popularization of mobile embedded devices such as tablet computers and smart phones, there is also increasing pressure on network transmission of video data. Compared with the currently widely used video coding standard H.264 / AVC, the HEVC video coding standard can significantly improve the video coding compression ratio. figure 1 The performance comparison...

Claims

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