Predicting MPEG execution times
SIGMETRICS '98/PERFORMANCE '98 Proceedings of the 1998 ACM SIGMETRICS joint international conference on Measurement and modeling of computer systems
MPEG Handbook
Integrating Multimedia Applications in Hard Real-Time Systems
RTSS '98 Proceedings of the IEEE Real-Time Systems Symposium
IC for motion-compensated de-interlacing, noise reduction, and picture-rate conversion
IEEE Transactions on Consumer Electronics
A Robust Mechanism for Adaptive Scheduling of Multimedia Applications
ACM Transactions on Embedded Computing Systems (TECS)
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Decoding MPEG-2 video streams imposes hard real-time constraints for consumer electronic devices such as TV sets. The freedom of encoding choices provided by the MPEG-2 standard results in high variability inside streams, in particular with respect to frame structures and their sizes. In this paper, we discuss real-time issues for MPEG-2 playout. We present results from a study of realistic MPEG-2 video streams to analyze the validity of common assumptions for software decoding and identify a number of misconceptions. We identify constraints imposed by frame buffer handling and discuss their implications on decoding architecture and timing. Finally, we identify realistic timing constraints demanded by high quality MPEG-2 software video decoding.