A high-performance entropy decoding system for H.264/AVC

Author

Chang, Yuan-Teng ; Chung, Wen-Hao

Author_Institution

Inf. & Commun. Res. Labs., Ind. Technol. Res. Inst., Hsinchu, Taiwan

fYear

2009

fDate

June 28 2009-July 3 2009

Firstpage

1090

Lastpage

1093

Abstract

We present a high-performance entropy decoding system for H.264/AVC. This system includes a variable length coding (VLC) decoder, a context-based adaptive binary arithmetic coding (CABAC) decoder, and a run-level converter. Each syntax element above slice data is decoded by VLC decoder within a clock cycle. The CABAC decoder decodes the syntax elements at slice data and below through pipeline mechanism. A run-level converting method is designed and integrated into the system to improve the output efficiency of decoded quantized coefficients. This system can process 574,712 macroblock/s operating at 300 MHz, quite enough for real-time decoding for H.264/AVC HD level 4.1 video sequences.

Keywords

adaptive control; binary codes; variable length codes; video coding; H.264/AVC; H.264/AVC HD level 4.1 video sequences; context-based adaptive binary arithmetic coding decoder; high-performance entropy decoding system; pipeline mechanism; run-level converter; run-level converting method; variable length coding decoder; Arithmetic; Automatic voltage control; Clocks; Decoding; Design methodology; Entropy; High definition video; Pipelines; Real time systems; Video sequences; CABAC; Entropy Decoder; H.264/AVC;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo, 2009. ICME 2009. IEEE International Conference on

Conference_Location

New York, NY

ISSN

1945-7871

Print_ISBN

978-1-4244-4290-4

Electronic_ISBN

1945-7871

Type

conf

DOI

10.1109/ICME.2009.5202688

Filename

5202688