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Server-based smoothing of variable bit-rate streams

Stergios V. Anastasiadis, Kenneth C. Sevcik, Michael Stumm
2001 Proceedings of the ninth ACM international conference on Multimedia - MULTIMEDIA '01  
We also extend our algorithm for striping variable bit-rate streams on heterogeneous disks.  ...  dent on the amount of buffer space available at the client. We introduce an algorithm that uses bufJer space available at the server for smoothing disk transfers of variable bit-rate streams.  ...  INTRODUCTION Variable bit-rate encoding of video streams can achieve quality equivalent to constant bit-rate encoding while requiring average bit rate that is lower by 40% or more [lo, 131.  ... 
doi:10.1145/500141.500165 fatcat:fubnzfsmivdethriqct6jz6oqe

Server-based smoothing of variable bit-rate streams

Stergios V. Anastasiadis, Kenneth C. Sevcik, Michael Stumm
2001 Proceedings of the ninth ACM international conference on Multimedia - MULTIMEDIA '01  
We also extend our algorithm for striping variable bit-rate streams on heterogeneous disks.  ...  dent on the amount of buffer space available at the client. We introduce an algorithm that uses bufJer space available at the server for smoothing disk transfers of variable bit-rate streams.  ...  INTRODUCTION Variable bit-rate encoding of video streams can achieve quality equivalent to constant bit-rate encoding while requiring average bit rate that is lower by 40% or more [lo, 131.  ... 
doi:10.1145/500164.500165 fatcat:mwr5fe5evzb2rhwpec6d5coaqa

Storage replication and layout in Video-On-Demand servers [chapter]

Scott D. Stoller, John D. DeTreville
1995 Lecture Notes in Computer Science  
In the very-large-scale storage systems needed for VoD, the placement of disk arrays on the pool of computers mu s t b e c hosen carefully to provide high availability for the least cost.  ...  We propose a strategy for arranging disk arrays on a pool of PCs our strategy is inspired by Holland and Gibson's work on parity declustering for RAID.  ...  For example, although the video streams may be variable-bit-rate, we use just the mean bit-rate in our calculations.  ... 
doi:10.1007/bfb0019284 fatcat:zfwwhp4odzdt3prcvff5mllqsm

Efficient striping techniques for variable bit rate continuous media file servers

Prashant J. Shenoy, Harrick M. Vin
1999 Performance evaluation (Print)  
In this paper, we describe techniques for determining the stripe unit size and degree of striping for disk arrays storing variable bit rate continuous media data.  ...  To maximize the number of clients supported in large arrays, we propose a technique that partitions a disk array and stripes each media stream across a single partition.  ...  We then use the model to determine the optimal degree of striping for variable bit rate media streams.  ... 
doi:10.1016/s0166-5316(99)00044-9 fatcat:sjq6mk33zjhxbbwlauylc6efym

Clustered Multimedia Servers: Architectures and Storage Systems [chapter]

Guang Tan, Hai Jin, Song Wu
2003 Annual Review of Scalable Computing  
To reveal the essentials of multimedia service, we take a closer look at the real-time scheduling techniques for streaming data.  ...  We then examine the data organization methods employed in multimedia servers, which shape the system behavior in many aspects.  ...  Since the CBR (Const Bit Rate) stream can be regarded as a special example of VBR (Variable Bit Rate) streams, we restrict our discussion in the VBR admission control, and for simplicity, we will refer  ... 
doi:10.1142/9789812775498_0004 fatcat:hx2w57qexvemjgxnjrrvlbti5q

Performance Issues of Multimedia Applications [chapter]

Edmundo de Souza e Silva, Rosa M. M. Leão, Berthier Ribeiro-Neto, Sérgio Campos
2002 Lecture Notes in Computer Science  
Many of these applications demand the transmission of a continuous flow of data in real time.  ...  The dissemination of the Internet technologies, increasing communication bandwidth and processing speeds, and the growth in demand for multimedia information gave rise to a variety of applications.  ...  Since the number of bits in each component frame varies, the input bit rate and the output bit rate for the buffer at the client side are variable (VBR).  ... 
doi:10.1007/3-540-45798-4_16 fatcat:kmpyw2iyubds5blqridsst2nmq

Constructing collaborative desktop storage caches for large scientific datasets

Sudharshan S. Vazhkudai, Xiaosong Ma, Vincent W. Freeh, Jonathan W. Strickland, Nandan Tammineedi, Tyler Simon, Stephen L. Scott
2006 ACM Transactions on Storage  
These storage facilities offer a large range of choices in terms of capacity and access rate, as well as strong data availability and consistency support.  ...  Subsequent requests to these datasets involve data migration from archival systems at transfer rates significantly lower than local I/O or LAN throughput [Lee et al. 2002 ; Lee 1 Price quote from www.ibm.com  ...  ACKNOWLEDGMENT This work is supported in part by an IBM UPP award, the U.S. Department of Energy under contract No.  ... 
doi:10.1145/1168910.1168911 fatcat:k6mhwjxghjg6rnnqmgvgkicpqu

A qos degradation policy for revenue maximization in fault-tolerant multi-resolution video servers

Minseok Song, Heonshik Shin
2003 IEEE transactions on consumer electronics  
, admitted client the minimum quality level in the event of disk failure.  ...  Our scheme exploits the multi-resolution property of video streams, and achieves graceful degradation at near-optimal level when the disk,fails.  ...  We extend our scheme for variable-hit-rate (VBR) streams in Section VII. Finally we conclude the paper in Section VIII.  ... 
doi:10.1109/tce.2003.1209531 fatcat:voga4xfbbrhshgs7snnuuuokyi

Design and analysis of a demand adaptive and locality aware streaming media server cluster

Zihui Ge, Ping Ji, Prashant Shenoy
2007 Multimedia Systems  
of online streaming media.  ...  DALA Server Cluster Architecture In this section, we present the details of our demand-adaptive and locality-aware architecture for clustered streaming servers.  ...  Once the disk throughput reaches 600Mbps (comparing to 1Gbps of network bandwidth), due to effects of memory caching, improve disks throughput can no longer help the system achieving higher effective capacity  ... 
doi:10.1007/s00530-007-0092-y fatcat:tem6rhqygfbgxnc46pswrw4zse

Yima: a second-generation continuous media server

C. Shahabi, R. Zimmermann, Kun Fu, Shu-Yuen Didi Yao
2002 Computer  
We report our comparison results of two such designs, both implemented in a realworld experimental setup. Second, we explain two alternative approaches to handling variable-bit-rate (VBR) video.  ...  To compute the amount of q © fluctuation, the client issues commands to speedup or slowdown the data stream as shown in Fig. 7 . Several watermark thresholds are used to fine-tune the streaming rate.  ...  Acknowledgment The authors would like to acknowledge Hong Zhu for his extensive contributions in the development of different Yima clients.  ... 
doi:10.1109/mc.2002.1009169 fatcat:aee5igmnjvfwjossypzwvmiuly

Resource scheduling in a high-performance multimedia server

HweeHwa Pang, B. Jose, M.S. Krishnan
1999 IEEE Transactions on Knowledge and Data Engineering  
Moreover, in processing a block request for a replicated object, the server will dynamically channel the retrieval operation to the most lightly loaded disk that holds a copy of the required block.  ...  In this paper, we propose and evaluate a set of data-placement and retrieval algorithms to exploit the full capacity of the disks in a multimedia server.  ...  servers cannot be generalized to cater for variable bit rate streams.  ... 
doi:10.1109/69.761665 fatcat:mutrnuu3vfgvjf76m7pskp6wdi

Streaming video over the Internet: approaches and directions

Dapeng Wu, Y.T. Hou, Wenwu Zhu, Ya-Qin Zhang, J.M. Peha
2001 IEEE transactions on circuits and systems for video technology (Print)  
This special issue is aimed at dissemination of the contributions in the field of streaming video over the Internet.  ...  However, the current best-effort Internet does not offer any quality of service (QoS) guarantees to streaming video.  ...  Note that data striping is different from file replication (an expensive way to increase throughput) in that data striping allows only one copy of a video file stored on disks while file replication allows  ... 
doi:10.1109/76.911156 fatcat:aputdwikj5as7g7jxa4vg5qxzy

Blizzard: Fast, Cloud-scale Block Storage for Cloud-oblivious Applications

James W. Mickens, Edmund B. Nightingale, Jeremy Elson, Darren Gehring, Bin Fan, Asim Kadav, Vijay Chidambaram, Osama Khan, Krishna Nareddy
2014 Symposium on Networked Systems Design and Implementation  
Blizzard's virtual disk drive, which clients mount like a normal physical one, provides maximum throughputs of 1200 MB/s, and can improve the performance of unmodified, cloud-oblivious applications by  ...  Using a novel striping scheme, Blizzard exposes high disk parallelism to both sequential and random workloads; also, by decoupling the durability and ordering requirements expressed by flush requests,  ...  The usermode component of the virtual disk is multi-threaded, and it maximizes throughput by handling multiple kernel requests and FDS operations in parallel.  ... 
dblp:conf/nsdi/MickensNEGFKCKN14 fatcat:4yw7efmyinb2tl2okpzigm2pse

High Throughput JPEG 2000 for Video Content Production and Delivery Over IP Networks

David Taubman, Aous Naman, Michael Smith, Pierre-Anthony Lemieux, Hassaan Saadat, Osamu Watanabe, Reji Mathew
2022 Frontiers in Signal Processing  
ITU-T Rec T.814 | IS 15444-15, known as High Throughput JPEG 2000, or simply HTJ2K, is Part-15 in the JPEG 2000 series of standards, published in 2019 by the ITU and ISO/IEC.  ...  For non-iterative optimal rate control, HTJ2K encoders with the highest throughputs and lowest hardware encoding footprints need a strategy for constraining the number of so-called HT-Sets that are generated  ...  If the objective of the PCRD-opt algorithm is simply to minimize squared error distortion (i.e., to maximize PSNR), then the distortion contribution associated with a single bit-error in bit-plane p of  ... 
doi:10.3389/frsip.2022.885644 fatcat:vys5vbtpyfaaveuvektwxxkql4

Fast Searching by Content in Multimedia Databases

Christos Faloutsos
1995 IEEE Data Engineering Bulletin  
Membership in the TC on Data Engineering is open to all current members of the IEEE Computer Society who are interested in database systems.  ...  Opinions expressed in contributions are those of the authors and do not necessarily reflect the positions of the TC on Data Engineering, the IEEE Computer Society, or the authors' organizations.  ...  The interesting problems in these applications are to find the details of the distance functions in each case, and to design features that will lower-bound the corresponding distance tightly.  ... 
dblp:journals/debu/Faloutsos95 fatcat:arvfhjqoubg3znn44pebikpnfq
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