Screencast dissected: Performance measurements and design considerations

Chih Fan Hsu, Tsung Han Tsai, Chun-Ying Huang, Cheng Hsin Hsu, Kuan Ta Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations


Dynamic and adaptive binding between computing devices and displays is increasingly more popular, and screencast technologies enable such binding over wireless networks. In this paper, we design and conduct the first detailed measurement study on the performance of the state-of-the-art screencast technologies. Several commercial and one opensource screencast technologies are considered in our detailed analysis, which leads to several insights: (i) there is no single winning screencast technology, indicating rooms to further enhance the screencast technologies, (ii) hardware video encoders significantly reduce the CPU usage at the expense of slightly higher GPU usage and end-to-end delay, and should be adopted in future screencast technologies, (iii) comprehensive error resilience tools are needed as wireless communication is vulnerable to packet loss, (iv) emerging video codecs designed for screen contents lead to better Quality of Experience (QoE) of screencast, and (v) rate adaptation mechanisms are critical to avoiding degraded QoE due to network dynamics. Furthermore, our measurement methodology and open-source screencast platform allow researchers and developers to quantitatively evaluate other design considerations, which will lead to optimized screencast technologies.

Original languageEnglish
Title of host publicationProceedings of the 6th ACM Multimedia Systems Conference, MMSys 2015
PublisherAssociation for Computing Machinery, Inc
Number of pages12
ISBN (Electronic)9781450333511
StatePublished - 18 Mar 2015
Event6th ACM Multimedia Systems Conference, MMSys 2015 - Portland, United States
Duration: 18 Mar 201520 Mar 2015

Publication series

NameProceedings of the 6th ACM Multimedia Systems Conference, MMSys 2015


Conference6th ACM Multimedia Systems Conference, MMSys 2015
Country/TerritoryUnited States


  • Experiments
  • Measurements
  • Optimization
  • Streaming
  • Wireless networks


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