In this research paper, Jean-Claude Dufourd, Stéphane Thomas and Cyril Concolato have explored the different issues raised by the recording and on-demand playback of broadcast HbbTV services containing interactive applications. They proposed a set of HbbTV native tools for the base of the system, DASH tools for adding random access to MPEG-2 TS in the user recording case, and also adding HTTP streaming in catch-up systems. They proposed guidelines to application developers and small extensions to HbbTV. They described possible implementations based on MPEG-2 TS and discussed an alternative based on ISOBMFF.
Future work includes the implementation of a recording functionality in their in-progress open source HbbTV player, the checking of recording guidelines in their HbbTV application validation software, proposing the extensions described above for standardization in the next version of HbbTV, and exploring the playback of HbbTV services on non-HbbTV devices such as mobiles and tablets in the context of convergence in the home.
READ PAPER HERE : http://biblio.telecom-paristech.fr/cgi-bin/download.cgi?id=11193
Via Nicolas Weil