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A parallel ultra-high resolution MPEG-2 video decoder for PC cluster based tiled display systems

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3 Author(s)
Han Chen ; Princeton Univ., NJ, USA ; Kai Li ; Bin Wei

This paper presents a hierarchical parallel MPEG-2 decoder for playing ultra-high-resolution videos on PC cluster based tiled display systems. To maximize parallelism while minimizing the communication requirements for a PC cluster, our algorithm uses a two-level splitter approach, where a root splitter splits an MPEG-2 video stream at the picture level and passes them to k second-level splitters, each of which splits the pictures into macroblocks and sends them to m /spl times/ n decoders according to their screen locations. Our experiments with various configurations show that this system is highly scalable and has a low and balanced communication requirement among the PC nodes. On a 4 /spl times/ 4 display wall system driven by 21 PCs, the implementation can play back a 3840 /spl times/ 2800 video at 38.9 frames per second.

Published in:

Parallel and Distributed Processing Symposium., Proceedings International, IPDPS 2002, Abstracts and CD-ROM

Date of Conference:

15-19 April 2001

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