Worst-case execution times analysis of MPEG-2 decoding

Author

Altenbernd, Peter ; Burchard, Lars-Olof ; Stappert, Friedhelm

fYear

2000

fDate

2000

Firstpage

73

Lastpage

80

Abstract

Presents the first worst-case execution times (WCET) analysis of MPEG decoding. Solutions for two scenarios-video-on-demand (VoD) and live-are presented, serving as examples for a variety of real-world applications. A significant reduction of over-estimations (down to 17%, including overheads) during WCET analysis of the live scenario can be achieved by using our new two-phase decoder with built-in WCET analysis, which can be universally applied. It is even possible to predict the exact execution times in the VoD scenario. This work is motivated by the fact that media streaming service providers are under great pressure to fulfil the quality of service promised to their customers, preferably in an efficient way

Keywords

decoding; quality of service; software performance evaluation; video coding; video on demand; MPEG-2 decoding; live scenario; media streaming service providers; over-estimations; overheads; service quality; two-phase decoder; video-on-demand; worst-case execution times analysis; Bit rate; Decoding; Dispatching; MPEG standards; Quality of service; Resource management; Scheduling algorithm; Streaming media; TV broadcasting; Videoconference;

fLanguage

English

Publisher

ieee

Conference_Titel

Real-Time Systems, 2000. Euromicro RTS 2000. 12th Euromicro Conference on

Conference_Location

Stockholm

ISSN

1068-3070

Print_ISBN

0-7695-0734-4

Type

conf

DOI

10.1109/EMRTS.2000.853994

Filename

853994