Extension of SMIL with QoS control and its implementation

Terashima, Yoshimitsu; Yasumoto, Keiichi; Higashino, Teruo; Abe, Kyo; Matsuura, Toshio; Taniguchi, Kenichi

doi:10.1109/icme.2000.871095

Cited by 6 publications

(6 citation statements)

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“…However it does not provide a service specification technique. In [16] a language called QoS-SMIL where some QoS guarantee statements are added to a subclass of SMIL is proposed. In addition to standard facilities of SMIL, dynamic media scaling of each multimedia object and explicit intermedia synchronization can be specified.…”

Section: Related Workmentioning

confidence: 99%

Multimedia streaming services

Althun

Zimmermann

2003

Proceedings of the 5th ACM SIGMM International Workshop on Multimedia Information Retrieval - MIR '03

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The central purpose of this paper is to present a novel framework supporting the specification, the implementation and retrieval of media streaming services. It provides an integrated service development environment comprising of a streaming service model, a service specification language and several implementation and retrieval tools. Our approach is based on a clear separation of a streaming service specification, and its implementation by a distributed application and can be used for different streaming paradigms, e.g. push and pull services.

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Section: Related Workmentioning

confidence: 99%

Multimedia streaming services

Althun

Zimmermann

2003

Proceedings of the 5th ACM SIGMM International Workshop on Multimedia Information Retrieval - MIR '03

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“…This language has been extensively referred in the literature in several aspects concerning the authoring and presentation of IMDs [3,7,9,17,25,26,29]. Recently, a second version of SMIL has been proposed to enhance SMIL 1.0 [27] so that the presentation becomes more dynamic and flexible (for instance, the presentation of animations, the management of events, the management of desynchronisation among media objects, ).…”

Section: Introductionmentioning

confidence: 99%

An integrated environment for the presentation of consistent SMIL 2.0 documents

Sampaio

Lohr

Courtiat

2001

Proceedings of the 2001 ACM Symposium on Document Engineering

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The utilization of Interactive Multimedia Documents (IMDs) has been largely addressed in several fields such as education, medicine, etc. since these documents can be distributed and accessed over the World-Wide-Web. In this context, the W3C standard Synchronized Multimedia Integration Language (SMIL) has been proposed for the presentation of IMD's over the Web. However, the flexibility of the temporal model of SMIL 2.0 allows the author to describe temporal synchronization relationships that potentially can not be resolved during the presentation of the document, known as temporal inconsistencies. For this reason, an approach that enables to detect and correct these inconsistencies is needed. This paper presents a formal approach for the verification, scheduling and presentation of consistent SMIL 2.0 documents based on the RT-LOTOS formal description technique. Thus, the consistency analysis of SMIL 2.0 documents is presented and some solutions are proposed in order to deal with potential state space explosion problems. Further on, some contributions are also presented concerning the scheduling and presentation of SMIL 2.0 documents based on a simple scheduling graph, called a Time Labeled Automata (TLA), derived automatically from the document formal specification. Finally, a global Java-based architecture for the implementation of a player of consistent SMIL 2.0 documents is presented.

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“…The proposed technique may take some synchronization overhead among processes caused by the constraint oriented style. In order to evaluate the trade-off between execution efficiency and development cost, we have carried out some experiments in [12] (RedHat Linux 5.2 on Pentium III 500MHz PC with 128Mbyte memory). As a result, we have confirmed that (1) programs developed with the proposed technique consume at most 20 % more processor power (10% for synchronization overhead and another 10 % for compiler overhead) than the programs coded by C, that (2) the description amount with our technique was about half of the C programs in terms of the number of statements without definition part for processes/functions and variables (here we used the same multi-media primitives and the same real-time thread library), and that (3) the modification amount for the inter-media synchronization mechanism with our technique was much less than the case using C (for the details, see [8], [9]).…”

Section: Resultsmentioning

confidence: 99%

“…Due to space limitation, here we only present the implementation technique for dswitch element (see [12] for implementation techniques of other elements).…”

Section: Implementation Of Qos Specific Facilitiesmentioning

confidence: 99%

“…Concerning about media scaling, when the switching is just to reduce the temporal resolution of an object, we define constraints for several levels of timing resolution in QualityDef.Part which is part of TimingPart for each video playback process (the cases for reducing spatial resolution and for changing servers, see [12]). Fig.…”

Section: Implementation Of Qos Specific Facilitiesmentioning

confidence: 99%

See 1 more Smart Citation

Integration of QoS guarantees into SMIL and its flexible implementation

Terashima

Yasumoto²,

Higashino³

et al.

2000 Eighth International Workshop on Quality of Service. IWQoS 2000 (Cat. No.00EX400)

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In this paper, we propose a flexible implementation technique for QoS control mechanisms where they are implemented as separate modules using the constraint oriented style of real-time LOTOS. For an application, we define and implement QOS-SMIL with (1) dynamic switching and (2) explicit inter-media synchronization facilities. Experimental results show that the proposed technique has some advantages w.r.t. development cost for QoS control mechanisms.

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Extension of SMIL with QoS control and its implementation

Cited by 6 publications

References 1 publication

Multimedia streaming services

Multimedia streaming services

An integrated environment for the presentation of consistent SMIL 2.0 documents

Integration of QoS guarantees into SMIL and its flexible implementation

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