Patent ID: 8199825
Filing Date: 2012-06-12
Classification: H04N

Abstract:
1. A method for reducing the resolution of media data, said method comprising: receiving input data comprised of compressed data for a frame of a plurality of frames at a hardware transcoder, wherein said frame is at a first resolution, wherein each frame of said plurality of frames comprises a plurality of macroblocks, wherein a macroblock is characterized as a first coding type if said macroblock is dependent on a macroblock from another frame and is otherwise characterized as a second coding type; downsampling said input data to generate compressed downsampled data at a second resolution that is reduced relative to said first resolution at said hardware transcoder, said compressed downsampled data used to generate a frame at said second resolution; selecting data processing functions according to a single first number of macroblocks of said frame characterized as said first coding type and a single second number of macroblocks characterized as said second coding type, wherein said single first number of macroblocks of said frame characterized as said first coding type is greater than said single second number of macroblocks characterized as said second coding type; decoding said compressed downsampled data to generate decompressed downsampled data at said second resolution at said hardware transcoder; and performing motion compensation on said decompressed downsampled data at said second resolution to generate motion compensated decompressed downsampled data used as a reference for a second frame at said hardware transcoder.