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A Just-in-time Encapsulation Mechanism for Adaptive Bit Rate Videos

  

  1. Dept. of SVPTG, Cisco Systems（China）R&D Co. Ltd., Shanghai 200233, China
  • Received:2014-08-20 Online:2014-11-27 Published:2014-12-10

Abstract:

The adaptive bit rate streaming is one of todays video streaming technologies and has attracted a wide spread attention since its media server can
automatically adapts to any change in each users network and playback conditions. There are a few different adaptive bit rate videos streaming technologies including HLS, HSS,
HDS, and MPEG-DASH over the Internet. These variations require video streaming to serve a wide variety of end-clients and to make a separate copy for each end-client type which
negatively impacts storage and bandwidth usage. In this paper, we put forward a Just-in-time Encapsulation (JITE) mechanism to overcome it. With JITE, only a single common
format representation of contents is stored and cached by the server. Upon each client request, the server will re-encapsulate the common format representation into end client
specific format to save storage and bandwidth.

Key words:  adaptive bit rate videos (ABR), just-in-time encapsulation (JITE), adaptive transport streams (ATS)