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Home » Greening the Video Transcoding Service with Low-Cost Hardware Transcoders
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Greening the Video Transcoding Service with Low-Cost Hardware Transcoders

Authors: 

Peng Liu, University of Wisconsin—Madison; Jongwon Yoon, Hanyang University; Lance Johnson, University of Minnesota; Suman Banerjee, University of Wisconsin—Madison

Abstract: 

Video transcoding plays a critical role in a video streaming service. Content owners and publishers need video transcoders to adapt their videos to different formats, bitrates, and qualities before streaming them to end users with the best quality of service. In this paper, we report our experience to develop and deploy VideoCoreCluster, a low-cost, highly efficient video transcoder cluster for live video streaming services. We implemented the video transcoder cluster with low-cost single board computers, specifically the Raspberry Pi Model B. The quality of the transcoded video delivered by our cluster is comparable with the best open source softwarebased video transcoder, and our video transcoders consume much less energy. We designed a scheduling algorithm based on priority and capacity so that the cluster manager can leverage the characteristics of adaptive bitrate video streaming technologies to provide a reliable and scalable service for the video streaming infrastructure. We have replaced the software-based transcoders for some TV channels in a live TV streaming service deployment on our university campus with this cluster.

Peng Liu, University of Wisconsin—Madison

Jongwon Yoon, Hanyang University

Lance Johnson, University of Minnesota

Suman Banerjee, University of Wisconsin—Madison

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BibTeX
@inproceedings {196294,
author = {Peng Liu and Jongwon Yoon and Lance Johnson and Suman Banerjee},
title = {Greening the Video Transcoding Service with {Low-Cost} Hardware Transcoders},
booktitle = {2016 USENIX Annual Technical Conference (USENIX ATC 16)},
year = {2016},
isbn = {978-1-931971-30-0},
address = {Denver, CO},
pages = {407--419},
url = {https://www.usenix.org/conference/atc16/technical-sessions/presentation/liu},
publisher = {USENIX Association},
month = jun,
}
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