Stream switching based on gradual decoder refresh

Details Stream switching based on gradual decoder refresh Stream switching based on gradual decoder refresh

2004-05-19

2009-06-23

Wang, Liangche A (Department: 2453)

Electrical computers and digital processing systems: multicomput

Computer-to-computer protocol implementing

Computer-to-computer data streaming

C709S203000, C709S223000, C709S224000, C709S232000, C709S238000

Reexamination Certificate

active

07552227

ABSTRACT:
A signaling method and device for use in stream switching in which GDR random access points are used. In order to indicate the GDR switching points in the bitstreams, a Sync Sample Information Box, which is contained in a Sync Sample Box, is used to provide information of such GDR switching points. The information also includes which slice group is the isolated region and which slice group is the leftover region, if slice groups are applied in encoding. The signaling method can be used in video data transmission using Real-time Transport Protocol (RTP), and a Session Description Protocol (SDP) can be used to convey information indicative of the characteristics of the bitstreams.

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