SBA: a server-initiated playback scheme supporting variable bit rate control

Jung Long Jiang, Tien-Fu Chen

Research output: Contribution to journalArticlepeer-review


To support efficient multimedia retrieval, multimedia server usually store a large size of multimedia data in a compressed form, such as MPEG format for video and audio data. However, variable bit rate (VBR) of MPEG movies is a serious problem for a system supporting video-on-demand services (VOD). In this paper, we propose a Smoothing by Block Adjustment (SBA) scheme to deal with the VBR problem based on physical storage of multimedia data by a block. If we reduce the frequence of rate adjustment for all movies in a VOD system, we can eliminate much useless overhead of the server or network resource adjustment in a VOD system. We show that our SBA scheme can solve VBR problems without incurring much complexity and efficiently reduce frequent rate adjustment for a movie playback.

Original languageEnglish
Pages (from-to)210-218
Number of pages9
JournalIEEE Transactions on Consumer Electronics
Issue number1
StatePublished - 1 Jan 1999

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