MPEG-4 SP/ASP decoder for a DSP-based Multi-Format IP Set-Top Box

Author

Pescador, F. ; Garrido, M.J. ; Sanz, C. ; Juarez, E. ; Samper, D. ; Antoniello, R.

Author_Institution

Grupo de Diseno Electron. y Microelectronico, Univ. Politecnica de Madrid

fYear

2006

fDate

6-10 Nov. 2006

Firstpage

3397

Lastpage

3402

Abstract

Internet protocol set-top boxes (IP STBs) based on single-processor architectures have been recently introduced in the market. In this paper, the implementation of an MPEG-4 simple profile (SP) / advanced simple profile (ASP) video decoder for a multi-format IP STB based on a TMS320DM641 DSP is presented. An initial raw-C decoder for PC platform was fully tested and ported to the DSP. Using this code as a starting point, an optimization process that achieves a 90% speedup, allowing real-time MPEG-4 SP/ASP decoding using the aforementioned DSP, is described. The MPEG-4 decoder has been integrated in the IP STB and tested in a real environment using DVD movies and actual digital TV channels with excellent results

Keywords

IP networks; digital signal processing chips; optimisation; video coding; DSP; DVD movies; MPEG-4 ASP video decoder; MPEG-4 SP video decoder; TMS320DM641; advanced simple profile; digital TV channels; initial raw-C decoder; multiformat IP set-top box; optimization process; Application specific processors; DVD; Decoding; Digital signal processing; Internet; MPEG 4 Standard; Motion pictures; Protocols; Testing; US Department of Transportation;

fLanguage

English

Publisher

ieee

Conference_Titel

IEEE Industrial Electronics, IECON 2006 - 32nd Annual Conference on

Conference_Location

Paris

ISSN

1553-572X

Print_ISBN

1-4244-0390-1

Type

conf

DOI

10.1109/IECON.2006.347709

Filename

4153438