David Erickson

US Patent:

20090257508, Oct 15, 2009

Filed:

Mar 9, 2009

Appl. No.:

12/400250

Inventors:

Gaurav Aggarwal - Andover MA, US
Marcus Kellerman - San Diego CA, US
David Erickson - San Clemente CA, US
Robert Tosi - Littleton MA, US
Wade Wan - Orange CA, US

International Classification:

H04N 7/12

US Classification:

37524025, 375E07027

Abstract:

A video processing system is operable to perform one or more display queue trick (DQT) operations utilizing decoded frames queued in memory. The decoded frames are generated from the start of random access points (RAPs) in frame segments in an encoded video stream. Location of RAPs may be determined during decoding of the encoded video stream. Exemplary encoding scheme comprise MPEG, AVC and/or VC1. The DQT modes include forward and/or reverse display modes. The used frames are selected based on determination of DQT mode parameters, queuing limitations and/or frame properties of selected and/or unselected frames in the frame segments. Frame properties comprise frame discardability and/or display inter-frame dependencies between selected and/or unselected frames. The video processing system is operable to jump to preceding and/or subsequent RAPs during DQT mode operations. The video processing system is also operable to skip one or more RAPs during such jumps.