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Real-time capable file system for scalable media algorithms & caching strategy for exploiting scalability on file system level

: Sparenberg, H.; Martin, M.; Foessel, S.


Domanski, M. ; Institute of Electrical and Electronics Engineers -IEEE-:
Picture Coding Symposium, PCS 2012. Proceedings : Krakow, Poland, 7 - 9 May 2012
Piscataway, N.J: IEEE, 2012
ISBN: 978-1-4577-2048-2
ISBN: 978-1-4577-2047-5
Picture Coding Symposium (PCS) <29, 2012, Krakow>
Fraunhofer IIS ()

Professional movie distribution and mastering formats use high quality, intra-frame compression formats like JPEG 2000, a codec allowing for scalability in resolution and quality. Latest processor types, either CPUs or high-end GPUs, can decode digital cinema-compliant JPEG 2000 image sequences in real-time. This brings out a new bottleneck during a movie playback since current consumer hard-drives are not fast enough for data rates being used in digital cinema or digital archiving. This paper shows a method for using file-inherent scalability on file system level as well as a caching strategy especially adapted for scalable media files.