Command packet system and method supporting improved trick mode performance in video decoding systems
AssigneeBroadcom Corporation
InventorsGaurav Aggarwal, Arun Gopalakrishna Rao, Marcus Kellerman, David Erickson, Jason Demas, Sandeep Bhatia, Girish Hulmani
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Abstract
A system, method, and apparatus for reducing the video decoder processing requirements are presented herein. During a rewind operation, a reference picture for a group of pictures is decoded and stored into a reference frame buffer. By storing a reference picture for the group, the reference picture need not be decoded to display each picture in the group during the rewind operation.
Claims15
A method for decoding pictures, said method comprising:
- storing a reference picture;
- decoding a first prediction picture from the reference picture;
- decoding a second prediction picture from the reference picture;
- decoding a display picture from the first prediction picture and the second prediction picture;
- and
- providing the display picture to a display device.
A decoder system for decoding pictures, said method comprising:
- a first frame buffer for storing a reference picture;
- a second frame buffer for storing a first prediction picture;
- a third frame buffer for storing a second prediction picture;
- and
- a processor for decoding a display picture from the first prediction picture and the second prediction picture.
An integrated circuit comprising:
- memory for storing a plurality of instructions;
- a processor connected to the memory;
- wherein execution of the plurality of instructions by the processor causes:
- storing a reference picture;
- decoding a first prediction picture from the reference picture;
- decoding a second prediction picture from the reference picture;
- decoding a display picture from the first prediction picture and the second prediction picture;
- and
- providing the display picture to a display device.
Dependencies are inferred from the claim text.