METHOD AND APPARATUS FOR MPEG-2 TO H.264 VIDEO TRANSCODING

摘要

A method for transcoding from an MPEG-2 format to an H.264 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the MPEG-2 format to generate a plurality of macroblocks; (B) determining a plurality of indicators from a pair of the macroblocks, the pair of the macroblocks being vertically adjoining; and (C) coding the pair of the macroblocks into an output video stream in the H.264 format using one of (i) a field mode coding and (ii) a frame mode coding as determined from the indicators.

主权项

1. A method for transcoding from an MPEG-2 format to an H.264 format, comprising the steps of:
(A) buffering an input video stream in said MPEG-2 format, wherein data in said input video stream represents a picture; (B) generating a plurality of macroblocks by decoding said data; (C) determining at least one item from a given one of said macroblocks; and (D) coding said given macroblock into an output video stream in said H.264 format using said at least one item to refine an H.264 motion vector of said given macroblock.