| US 7,469,012 B2 | ||
| System and method for transcoding entropy-coded bitstreams | ||
| Alexander G. MacInnis, Los Altos, Calif. (US); and Vivian T. Hsiun, Yorba Linda, Calif. (US) | ||
| Assigned to Broadcom Corporation, Irvine, Calif. (US) | ||
| Filed on Oct. 18, 2002, as Appl. No. 10/273,515. | ||
| Claims priority of provisional application 60/380520, filed on May 14, 2002. | ||
| Prior Publication US 2003/0215018 A1, Nov. 20, 2003 | ||
| Int. Cl. H04B 1/66 (2006.01) | ||
| U.S. Cl. 375—240.25 | 15 Claims |
| 1. A decoder comprising:
a preprocessor for transcoding a bitstream encoded with variable length coding to a bitstream encoded with fixed length coding,
said preprocessor further comprising:
an input bitstream decoder for receiving a portion of the bitstream encoded with variable length coding, said portion of the
bitstream being associated with a particular picture and decoding a set of syntax elements from said portion of the bitstream
encoded with variable length coding; and
an output bitstream encoder for encoding the set of syntax elements from said portion of the bitstream associated with the
particular picture to form the bitstream encoded with fixed length coding, prior to motion compensating the portion of the
bitstream associated with the particular picture; and
a decompression engine for decoding the bitstream encoded with fixed length coding, wherein decoding the bitstream with fixed
length coding further comprises motion compensating the portion of the bitstream associated with the particular picture; and
wherein the decoder receives the bitstream encoded with variable length coding from a communication medium.
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