H.264/AVC baseline profile decoder optimization on independent platform

Author

Quan, Xue ; Jilin, Liu ; Shijie, Wang ; Jiandong, Zhao

Author_Institution

Dept. of Inf. & Commun. Eng., Zhejiang Univ., Hangzhou, China

Volume

2

fYear

2005

fDate

23-26 Sept. 2005

Firstpage

1253

Lastpage

1256

Abstract

In this paper, a real-time H.264/AVC baseline profile decoder is implemented on independent platform. Computationally intensive modules in the reference decoder are optimized for various hardware platforms. Especially, a fast group-based CAVLC entropy decoding algorithm is provided in detail, and several strategies are discussed from software optimization opinion. The experiments show that the speed of our developed software-based decoder is 3 times faster than that of the H.264/AVC reference decoder. The maximum decoding speed of 74 fps for CIF sequence is achieved on Intel Pentium 4 processor, with the same video quality as the reference decoder.

Keywords

adaptive decoding; computational complexity; entropy codes; motion compensation; variable length codes; video coding; Intel Pentium 4 processor; baseline profile decoder optimization; context-adaptive variable length coding; entropy decoding algorithm; independent platform; real-time H.264; reference decoder; software optimization; Automatic voltage control; Bit rate; Decoding; Entropy; Filters; Interpolation; Motion compensation; Quantization; Software algorithms; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2005. Proceedings. 2005 International Conference on

Print_ISBN

0-7803-9335-X

Type

conf

DOI

10.1109/WCNM.2005.1544282

Filename

1544282