Video Encoding and Splicing for Tune-in Time Reduction in IP Datacasting (IPDC) Over DVB-H

A novel video encoding and splicing method is proposed which minimizes the tune-in time of “channel zapping”, i.e. changing from one audiovisual service to another, in IPDC over Digital Video Broadcasting for Handheld terminals (DVB-H). DVB-H uses a time-sliced transmission scheme to reduce the power consumption used for radio reception. Tune-in time in DVB-H refers to the time between the start of the reception of a broadcast signal and the start of the media rendering. One of the significant factors in tune-in time is the time from the start of media decoding to the start of correct output from decoding, which is minimized when a time-slice is started with a random access point picture such as an independent decoding refresh (IDR) picture in H.264/AVC. In IPDC over DVB-H, encapsulation to time-slices is performed independently from encoding in a network element called IP encapsulator. At the time of encoding, time-slice boundaries are not known exactly, and it is therefore impos...

• Type: Conference
• Year: 2006
• Where: ICMCS
• Authors: Mehdi Rezaei, Miska M. Hannuksela, Moncef Gabbouj
• Keywords: ICMCS 2006, IDR Pictures, Minimum Tune-in Time, Tune-in Time