Cloud transcoder: Bridging the format and resolution gap between Internet videos and mobile devices

Zhenhua Li, Yan Huang, Gang Liu, Fuchen Wang, Zhi Li Zhang, Yafei Dai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

68 Scopus citations

Abstract

Despite the increasing popularity, Internet video streaming to mobile devices is still challenging. In particular, there has been a format and resolution "gap" between Internet videos and mobile devices, so mobile users have high demand on video transcoding to facilitate their specific devices. However, as a computation-intensive work, video transcoding is greatly challenged by the limited battery capacity of mobile devices. In this paper we propose and implement "Cloud Transcoder", which utilizes an intermediate cloud platform to bridge the "gap" via its special and practical designs. Specifically, Cloud Transcoder only requires the user to upload a video request rather than the video content. After getting the video request, Cloud Transcoder downloads the original video from the Internet, transcodes it on the user's demand, and transfers the transcoded video back to the user with a high data rate via the intra-cloud data transfer acceleration. Therefore, the mobile device only consumes energy in the last step - fast retrieving the transcoded video from the cloud. Running logs of our real-deployed system confirm the efficacy of Cloud Transcoder.

Original languageEnglish (US)
Title of host publicationNOSSDAV 2012 - Proceedings of the ACM Workshop on Network and Operating System Support for Digital Audio and Video
Pages33-38
Number of pages6
DOIs
StatePublished - Dec 1 2012
Event22nd ACM Workshop on Network and Operating Systems Support for Digital Audio and Video, NOSSDAV 2012 - Toronto, ON, Canada
Duration: Jun 7 2012Jun 8 2012

Publication series

NameProceedings of the International Workshop on Network and Operating System Support for Digital Audio and Video

Other

Other22nd ACM Workshop on Network and Operating Systems Support for Digital Audio and Video, NOSSDAV 2012
Country/TerritoryCanada
CityToronto, ON
Period6/7/126/8/12

Keywords

  • cloud computing
  • mobile devices
  • video transcoding

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