Video stream decoding method and device, terminal device and storage medium

Abstract

The embodiment of the invention discloses a video stream decoding method and device, a terminal device and a storage medium. The video stream decoding method is applied to the terminal device. The terminal device comprises a central processing unit and a graphic processor. The video stream decoding method is executed by the central processing unit, and the video stream decoding method comprises the following steps: acquiring multiple paths of video streams input by monitoring equipment; creating a plurality of threads in a thread pool corresponding to the graphic processor; and according to the plurality of threads, transmitting the plurality of paths of video streams to a graphics processor for video decoding processing to obtain a plurality of paths of decoded video data. According to the embodiment of the invention, a plurality of threads are created in a thread pool corresponding to a GPU. Therefore, the GPU is used for replacing the CPU to complete the work of multi-channel parallel decoding of the video stream data, the energy consumption of the whole equipment is greatly reduced, the video decoding efficiency and the GPU equipment utilization rate are improved, the dependence on the CPU is reduced, and the method can be widely applied to a video stream decoding scene with poor CPU processing capacity of the terminal device.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a video stream decoding method, device, terminal equipment and storage medium. Background technique [0002] With the rapid development of the Internet and mobile Internet, the total amount of data generated by people is showing a trend of rapid growth. There are more and more information and data, and the requirements for information and data processing capabilities are getting higher and higher, especially in the field of video. With the rapid development of the Internet and smart cities, more and more video data needs to be stored, transmitted and processed. , which will involve a lot of video encoding and decoding, referred to as video encoding and decoding. [0003] With the strengthening of security management, dense high-definition camera surveillance networks have been deployed on many occasions. However, in related technologies, it is difficult to efficiently...

AI Technical Summary

Problems solved by technology

However, in related technologies, it is difficult to efficiently process these massive video data in large quantities. A single 2U server can only process 4 to 8 video streams, and multiple video streams can reach 1000 Mbps, occupying a large number of central processing units. (Central Processing Unit, CPU) resources, a large number of servers are required to process multiple video streams obtained by intensive high-definition cameras

[0004]The actual deployment schemes of existing video stream decoding mainly include two categories: 1) The video stream data is transmitted to the background server with strong computing power for decoding. The problem is that it depends heavily on the network environment and the link is long, so it is not suitable for situations such as missing or poor networks

2) Using a terminal device with excellent hardware performance, such as a high-performance CPU, this solution often leads to high hardware costs and high energy consumption

Currently, there is no efficient solution for decoding video streams

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