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Stream switching based on gradual decoder refresh

  • US 7,552,227 B2
  • Filed: 05/19/2004
  • Issued: 06/23/2009
  • Est. Priority Date: 06/19/2003
  • Status: Active Grant
First Claim
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1. A signaling method for use in stream switching among a plurality of bitstreams, comprising:

  • providing in association with the bitstreams information on a switching point at which a first bitstream is caused to switch to a second bitstream, the bitstreams comprising video data indicative of a plurality of video frames, and at least one recovery point which defines a first correct or approximately correct picture in output order in the second bitstream decoded subsequent to said stream switching, andproviding in association with the second bitstream a distance between the switching point and the recovery point, wherein the switching point is different from the recovery point.

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