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Video playing method, video player and computer storage medium

A video player and video playback technology, applied in the field of Internet information, can solve the problems of complex ABR optimization algorithm, poor user viewing experience, and inability to deploy client players, so as to improve user experience, shorten decision-making delay, and reduce consumption Effect

Active Publication Date: 2020-02-11
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the ABR optimization algorithm in the prior art is relatively complicated, so it cannot be directly deployed in the client player, so that the user's viewing experience is poor when the video is played

Method used

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  • Video playing method, video player and computer storage medium
  • Video playing method, video player and computer storage medium
  • Video playing method, video player and computer storage medium

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Embodiment Construction

[0062] In order to make the purpose, technical solutions and advantages of the present invention clearer, the implementation method of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, so as to solve technical problems and achieve technical effects by applying technical means to the present invention. The process is well understood and implemented accordingly.

[0063] The design goal of the present invention is to convert the complex ABR algorithm into a lightweight and efficient online deployment model, and it is necessary to ensure that the converted deployment model has no difference in performance from the original ABR algorithm. Among them, methods such as linear fitting, nonlinear fitting, and strategy summarization can all be used as alternatives for the target conversion model. The present invention finally adopts decision tree as target conversion model based on the following reasons:

[0064] (1) ...

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Abstract

The invention discloses a video playing method, a video player and a computer storage medium, the method is applied to a mobile terminal, and the method comprises the following steps: playing a predetermined video composed of a plurality of continuous video blocks; for each video block in the predetermined video, calculating a first playing state of the video block, and calculating a bit rate decision of a next video block of the video block corresponding to the first playing state by adopting an ABR algorithm according to the first playing state; taking the first playing states of all the video blocks in the predetermined video and the corresponding actions as a training data set; generating a decision tree based on the training data set by adopting a CART algorithm; and deploying the decision tree into a video player of the mobile terminal and enabling the video player to play the video according to the bit rate obtained by the decision tree. According to the invention, a complex ABRalgorithm can be converted into the decision tree with a simple algorithm, and when the video player of the mobile terminal plays the video according to the bit rate obtained by the decision tree, the user experience can be greatly improved.

Description

technical field [0001] The invention relates to the field of Internet information technology, in particular to a video playing method, a video player and a computer storage medium. Background technique [0002] In the existing network system, video traffic accounts for a large part of the total network traffic. At the same time, the demand for online video transmission has grown rapidly in recent years. In order to optimize the video quality of videos watched by users online, an adaptive bit-rate (Adaptive Bit-rate, ABR) technology emerges as the times require. The ABR technology was first proposed by the academic community in 2011, aiming to optimize the user's quality of experience (Quality of Experience, QoE). To put it simply, the ABR algorithm selects the most suitable bit rate for the user for video transmission based on the estimation of the current network situation on the client side. Using ABR technology, when users watch videos online, they can make full use of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/437H04N21/44H04N21/466H04N21/647
CPCH04N21/437H04N21/44008H04N21/4665H04N21/64769
Inventor 徐明伟孟子立陈婧郭雅宁孙晨
Owner TSINGHUA UNIV
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