A viewer-assisted video transcoding task assignment method and device

Abstract

Embodiments of the present invention provide a viewer-assisted video transcoding task assignment method and device, the method comprising: obtaining the number of viewers reselected in the current time slot according to the working viewer status information of the previous time slot in the current time slot; According to the reward evaluation value of each available viewer and the fairness constraint information of each available viewer, the score of each available viewer is obtained; according to the score of each available viewer and the number of viewers reselected in the current time slot Obtain the video transcoding task allocation scheme of the current time slot. Judging the number of viewers that need to be reselected by fully considering the status information of the working viewers in the last time slot, and comprehensively considering the transcoding status and stability in the available viewer candidate set to synthesize the available viewers Evaluation to ensure long-term fairness and network service quality for long-term viewers.

Description

technical field [0001] The present invention relates to the technical field of information processing, in particular to a viewer-assisted video transcoding task assignment method and device. Background technique [0002] With the rapid development of Internet technology, the live video industry has expanded rapidly in the global market. According to industry forecast reports, from 2017 to 2022, live video traffic will increase 15 times, and by 2022, live video will account for 17% of the total Internet video traffic. The rapid expansion of live streaming traffic will bring huge challenges to the Internet. At the same time, in the live video scene, the viewer will interact with the anchor in real time, and video delay or freeze will seriously reduce the quality of user experience. Therefore, in the delay-sensitive live video service, the quality of service (Quality of Service; QoS) is extremely important. Due to the heterogeneity of users' viewing devices and networks, liv...

AI Technical Summary

Problems solved by technology

However, live video transcoding is a time-consuming and computationally intensive task, in which case, providing low-latency, high-quality live video streams becomes a major challenge

[0003] Therefore, a viewer-assisted transcoding system is proposed in the prior art, that is, to make full use of the computing resources of the viewer and offload the transcoding task to the viewer's device for calculation. This method overcomes the high delay of cloud computing transcoding, Disadvantages such as high price, its transcoding efficiency largely depends on how to allocate transcoding tasks

[0004] However, since the available resources of the viewer's device and the network status are unpredictable, it is extremely challenging to design an efficient and reasonable transcoding task allocation strategy

On the other hand, in the process of task assignment, the fairness of viewers is extremely important. Unfair task assignment will reduce the participation of some viewers and even affect the normal operation of the system. Therefore, while ensuring the utility of the system, it is also necessary to Guaranteed fairness for viewers

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