MPEG video decoding with the UltraSPARC visual instruction set

Author

Chang-Guo Zhou ; Ihtisham Kabir ; Leslie Kohn ; Aman Jabbi ; Rice, D. ; Xio-Ping Hu

Author_Institution

Sun Microsyst. Inc., Mountain View, CA, USA

fYear

1995

fDate

5-9 March 1995

Firstpage

470

Lastpage

477

Abstract

The UltraSPARC microprocessor is equipped with a rich "visual instruction set" (VIS) which can perform ALU and other operations on several pixels in parallel. Significant performance gains are possible in the areas of video compression and decompression, as well as other areas of image processing. In this paper, we present a computational complexity analysis of MPEG video decompression, and derive a quantitative performance bound for software MPEG decoders. Based on this estimate, we show that by combining VIS and a high superscalar instruction rate, UltraSPARC is capable of decoding MPEG digital video at 720/spl times/480/spl times/30 resolution entirely in software. A coding example for the YUV to RGB colorspace conversion is also presented.

Keywords

computational complexity; data compression; decoding; image coding; image processing; instruction sets; microprocessor chips; video coding; ALU; MPEG digital video; MPEG video decoding; UltraSPARC microprocessor; UltraSPARC visual instruction set; coding example; computational complexity analysis; high superscalar instruction rate; image processing; performance gains; quantitative performance bound; software MPEG decoders; video compression; video decompression; Computational complexity; Decoding; Image coding; Image processing; Microprocessors; Performance analysis; Performance gain; Software performance; Transform coding; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Compcon '95.'Technologies for the Information Superhighway', Digest of Papers.

Conference_Location

San Francisco, CA, USA

ISSN

1063-6390

Print_ISBN

0-8186-7029-0

Type

conf

DOI

10.1109/CMPCON.1995.512424

Filename

512424