Title :
A new file system with time-based indexing scheme for continuous media streams
Author_Institution :
Dept. of Comput. Eng., Hansung Univ., Seoul, South Korea
Abstract :
Many embedded systems generate and store multimedia data streams continuously before eventually processing the stored stream at a later time. When the stream is stored in variable bandwidth, additional CPU processing is inevitably involved in locating the exact frame positions corresponding to specific times. In this paper, a new file system with time-based indexing scheme is proposed. This time-based indexing scheme periodically stores the relations between the time and data locations. With this index information, applications can pinpoint the exact frame location corresponding to a given time. To prove the usefulness and effectiveness, we implemented the proposed file system and the indexing scheme on a Linux-based DVR and then compared the performance with that of the ext2 file system.
Keywords :
Linux; embedded systems; file organisation; indexing; media streaming; DVR; Linux; continuous media streams; embedded systems; file system; multimedia data streams; time-based indexing; variable bandwidth; Bandwidth; Delay; Embedded system; File systems; Indexing; Multimedia systems; Portable media players; Robot vision systems; Streaming media; Video compression;
Conference_Titel :
Communications, Computers and Signal Processing, 2009. PacRim 2009. IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-4560-8
Electronic_ISBN :
978-1-4244-4561-5
DOI :
10.1109/PACRIM.2009.5291319