Research Issues in Multimedia Storage Servers BANU OZDEN, AT& T Bell RAJEEV RASTOGI, 600 Mountain and AVI SILBERSCHATZ Murray Hill, New Jersey Laboratories, Avenue, 1. INTRODUCTION Multimedia applications require support for the storage and retrieval of multimedia data, which typically consist of video, audio, text, and images. These data can be categorized into continuous media (CM) data (e.g., video, audio) and noncontinuous media data (e.g., text, images). CM data, in contrast to nonCM data, have certain timing characteristics associated with them. For example, video clips, which are typically stored in units of frames, must be delivered to viewers at a certain rate (typically 30 frames/ see). For video compressed using the MPEG-I standard, this translates to a data rate of approximately 1.5 Mbps. CM data are also voluminous. For example, a 100-minute video compressed using the MPEG-I compression algorithm requires about 1.25 GB of storage space. The timing characteristics and the large volumes of CM data make the design of a multimedia storage server a challenging task. Such a server should: (1) (2) (3) provide rate guarantees for the storage and retrieval of CM data; provide support for VCR rewind, operations pause); of CM (e.g., fast-forward, as to
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Research issues in multimedia storage servers
Özden, Banu; Rastogi, Rajeev; Silberschatz, Avi
Follow ACM Computing Surveys (CSUR)
, Volume 27 (4)
Association for Computing Machinery – Dec 1, 1995
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