High-Throughput H.264/AVC High-Profile CABAC Decoder for HDTV Applications

In this letter we propose a high-throughput VLSI architecture design for H.264 high-profile context-based adaptive binary arithmatic coding (HP CABAC) decoding for HDTV applications. To speed up the inherent sequential CABAC decoding, we eliminate the bottleneck by proposing a look-ahead decision pa...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems for video technology 2009-09, Vol.19 (9), p.1395-1399
Main Authors: YANG, Yao-Chang, GUO, Jiun-In
Format: Article
Language:English
Subjects:
Applied sciences
Automatic voltage control
Broadcasting. Videocommunications. Audiovisual
Circuit properties
Circuits
Coding
Coding, codes
Context-based adaptive binary arithmatic coding (CABAC)
Counting
Decoding
Design engineering
Digital signal processing
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Frames
H.264
HDTV
High definition television
IEC standards
Imaging devices
Information, signal and communications theory
ISO standards
MPEG standards
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Signal and communications theory
Signal convertors
Tables (data)
Telecommunications
Telecommunications and information theory
Television
Transform coding
Very large scale integration
Video coding
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Summary:In this letter we propose a high-throughput VLSI architecture design for H.264 high-profile context-based adaptive binary arithmatic coding (HP CABAC) decoding for HDTV applications. To speed up the inherent sequential CABAC decoding, we eliminate the bottleneck by proposing a look-ahead decision parsing technique on the grouped context table with cache registers, which reduces 62% of cycle count on average as compared with the original CABAC decoding. In addition, the proposed design supports the macroblock adaptive frame field coding tools in H.264 main profile coding and 8 times 8 transform in H.264 high-profile coding. It achieves the real-time processing for H.264 CABAC decoding up to L4.1@30 frames/s with maximum 60 Mbits/s when operating at 105 MHz.
ISSN:1051-8215
1558-2205
DOI:10.1109/TCSVT.2009.2020340