An Efficient and Scalable Smoothing Algorithm of VBR Streams

In order to obtain better video quality, media files are required to use variable-bit-rate (VBR) encoding. However, it produces traffic burst and unbalanced resource utilizations to translate VBR-encoded video. In this paper, we propose a novel bandwidth smoothing algorithm, buffer sharing and bandw...

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Bibliographic Details
Published in2007 IEEE International Conference on Multimedia and Expo pp. 244 - 247
Main Authors Kaihui Li, Changqiao Xu, Jin Xu, Yuanhai Zhang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2007
Subjects
Bandwidth
Bit rate
Buffer storage
Encoding
Prefetching
Resource management
Smoothing methods
Streaming media
Video compression
Video sharing
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Summary:In order to obtain better video quality, media files are required to use variable-bit-rate (VBR) encoding. However, it produces traffic burst and unbalanced resource utilizations to translate VBR-encoded video. In this paper, we propose a novel bandwidth smoothing algorithm, buffer sharing and bandwidth smoothing of VBR streams (BSBS-VBR), which combines with prefetching and interval caching, allows video server to transmit a VBR-encoded stream at a fixed rate and makes users to share a disk stream. BSBS-VBR can also allocate and adjust buffer size dynamically according to the current request distribution and available resources. It can reduce the peak requirements of disk bandwidth and network bandwidth, improve utility of the resources, and serve more users by using this algorithm. These conclusions are proved by comparing with several existing methods experimentally.
ISBN:9781424410163
1424410169
ISSN:1945-7871
1945-788X
DOI:10.1109/ICME.2007.4284632