Review: ACM Workshop on Advanced video streaming techniques for peer-to-peer networks and social networking

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On the 29th of October we had our workshop co-located with ACM Multimedia 2010. The workshop was partly sponsored by the project “ARACHNE: Advanced video streaming techniques for peer-to-peer networks,” funded by the Italian Ministry for Education and Research (, and partly by the EC-funded “P2P-Next” project (

One of the highlights of the programme was definitely the keynote from George Wright, Head of Prototyping, BBC Research and Development:

Some of the presentations from the workshop received so far can be found here. Impressions from the workshop can be found below.

Another highlight was the demo session featuring P2P-Next's NextShareTV, a set-top box demonstrating live P2P streaming over the open, unmanaged Internet. The demo was running very smoothly and we received a lot of interesting feedback.

Finally, the best paper was selected among the following candidates:

  • Access Control to BitTorrent swarms using Closed Swarms by Keith Mitchell, Njaal Borch, Ingar Arntzen, Dusan Gabrijelcic
  • Improving Quality-of-Experience for Multiple Description Video Transmission in Peer-To-Peer Networks by Simone Milani, Giancarlo Calvagno
  • A Novel Cache Optimization Algorithm and Protocol for Video Streaming in Pure Peer-to-Peer Networks by Carlo Giulietti, Dan Schonfeld, Rashid Ansari
  • P2P Group Communication with Layer-Aware FEC by Yago Sánchez, Cornelius Hellge, Thomas Schierl, Thomas Wiegand
  • P2P streaming with LT codes: a prototype experimentation by Andrea Magnetto, Rossano Gaeta, Marco Grangetto, Matteo Sereno

And the best paper award goes to …

A Novel Cache Optimization Algorithm and Protocol for Video Streaming in Pure Peer-to-Peer Networks by Carlo Giulietti, Dan Schonfeld, Rashid Ansari
Finally, on behalf of the organizers, I'd like to thank all who contributed to the success of this workshop. I personally hope that you enjoyed the carefully crafted programme and 

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MPEG advances Dynamic Adaptive Streaming over HTTP (DASH) toward completion

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Guangzhou, CN – The 94th MPEG meeting was held in Guangzhou, People’s Republic of China from the 11th to the 15th of October 2010.
–MPEG press release also available here.
Attendees of the 94th MPEG meeting, 53rd JPEG meeting, and 3rd JCT-VC Meeting of MPEG and VCEG, Guangzhou, China. Photo courtesy of the GZ National Engineering Laboratory for Video Technology Research & Industrialization Center.
Highlights of the 94th Meeting

MPEG issues the Committee Draft for the carriage of multimedia data over HTTP
As HTTP became one of the most important protocols for the delivery of content over the Internet, MPEG launched an effort to use this standard for the delivery of multimedia data in an optimal way. At its 94th meeting, MPEG’s Dynamic Adaptive Streaming over HTTP (DASH) has reached the Committee Draft stage. The DASH committee draft is based on the 3GPP Adaptive HTTP Streaming specification and improves it by adding several new features and extensions such as, support of live streaming of content, additional annotation capabilities, flexibility in combining multiple contents, enhancement of trick modes and random access, and support of multiple content management and protection schemes, delivery of MPEG-2 Transport Stream, Scalable Video Coding (SVC) and Multi-view Video Coding (MVC). The new standard is expected to achieve Final Draft International Standard status in July 2011.

MPEG-M for multimedia services also progresses to Committee Draft
MPEG has advanced its joint activity with ITU-T SG16 (Question 13) on Advanced IPTV Terminal (AIT) at its 94th meeting, and progressed its work item called Multimedia Service Platform Technologies, or MPEG-M, to Committee Draft (CD). MPEG-M facilitates service aggregation so that service providers can offer users a plethora of innovative services by extending current IPTV technology toward the seamless integration of personal content creation and distribution, shopping-commerce, social networks and Internet distribution of digital media. The new draft MPEG-M standard (ISO/IEC 23006) comprises Part 2, specifying a revised and improved Middleware of MPEG technologies (MXM), Part 4 specifying a set of elementary services, and Part 5 specifying some mechanisms for aggregating services and illustrating how to use these mechanisms to aggregate services, e.g. for Advanced IPTV Terminal. The new standard is expected to achieve Final Draft International Standard status in July 2011.

MPEG-V Awareness Event is planned for January, 2011
MPEG announces the organization of the “MPEG-V Awareness Event 2011”, that will be held on 27 January, 2011 in Daegu, Korea. The purpose of this event is to present and demonstrate MPEG-V, a new standard elaborated by MPEG and expected to be published by ISO in2011. MPEG-V based products and applications will enable enhanced and persistent multi-sensorial user experience and interchange between virtual worlds. The standard is composed of several parts including:

  • architecture and use case scenarios,
  • syntax and semantics of data formats for interaction devices, device commands, and sensed information,
  • metadata to describe device capabilities and user preferences,
  • metadata to represent sensory effects,
  • metadata to represent the characteristics of virtual objects and avatars.

The MPEG-V awareness day is particularly targeted to developers of products and applications for multi-sensorial user experience, content creators, broadcasters, multimedia device manufacturers, sensor & actuator manufacturers, virtual worlds and online game developers, as well as persons interested in new opportunities in digital media. The event is free of charge. Registration is available at the MPEG-V Web Site at

MPEG enriches scalable complexity 3DMC for 3DG compression model
At its 94th meeting, MPEG enriched the 3D Graphics Compression Model published in MPEG-4 Part 25 with a new amendment to add a new tool. This tool allows application and product developers to apply, in an interoperable manner, the state-of-the-art scalable complexity 3D mesh coding from MPEG-4 Part 25 to scene representations defined in third-party standards such as COLLADA (by Khronos) and X3D (by W3C).

MPEG conducts Spatial Audio Object Coding verification test
MPEG Audio has finalized the work on MPEG Spatial Audio Object Coding (SAOC) by conducting a verification test comprised of a music-remix and a teleconferencing oriented scenario. The test results show that, when operated at the same bitrate, MPEG SAOC technology offers better quality than legacy technology for discretely encoded audio objects. This holds true for both the Low Power and regular decoding modes of SAOC. Alternatively, for a comparable level of audio quality, MPEG SAOC requires a significantly lower bitrate than other technologies, while at the same time providing a backwards compatible downmix and user interactivity.

MPEG SAOC enables interactive (“re-mixable”) music by adding only about 10% of additional bitrate to the rate required for a stereo downmix signal. For telephone conferencing solutions, MPEG SAOC efficiently transmits a single mono audio signal while the embedded SAOC data offers receiver side control for a personalized rendering of the remote conference participants across the local sound stage.

MPEG SAOC is the preferred solution for interactive / personalized audio products and services at bitrates as low as those known today from non-interactive audio codecs.

MPEG moves toward a visual search standard
At its 94th meeting, MPEG progressed the definition of requirements and the drafting of a Call for Proposals on Compact Descriptors for Visual Search. Exploiting the colocation of the 94th MPEG meeting with JPEG's 53rd meeting, MPEG experts in the domain of visual search met with experts from JPEG's JPSearch group to exchange their views and ideas on MPEG’s visual search activity. Experts from both working groups expressed their intent to strengthen their collaboration and to exploit the legacies of both committees.

Digging Deeper – How to Contact MPEG
Communicating the large and sometimes complex array of technology that the MPEG Committee has developed is not a simple task. Experts, past and present, have contributed a series of white-papers and vision documents that explain each of these standards individually. The repository is growing with each meeting, so if something you are interested is not there yet, it may appear there shortly – but you should also not hesitate to request it. You can start your MPEG adventure at:

Further Information
Future MPEG meetings are planned as follows:

  • No. 95, Daegu, KR, 24-28 January, 2011
  • No. 96, Geneva, CH, 21-25 March, 2011
  • No. 97, Torino, IT, 18-22 July, 2011
  • No. 98, Geneva, CH 28 November – 2 December, 2011

For further information about MPEG, please contact:
Dr. Leonardo Chiariglione (Convener of MPEG, Italy)
Via Borgionera, 103
10040 Villar Dora (TO), Italy
Tel: +39 011 935 04 61
This press release and other MPEG-related information can be found on the MPEG homepage:
The text and details related current Calls are in the Hot News section, These documents include information on how to respond to Calls.
The MPEG homepage also has links to other MPEG pages which are maintained by the MPEG subgroups. It also contains links to public documents that are freely available for download by those who are not MPEG members. Journalists that wish to receive MPEG Press Releases by email should contact Dr. Arianne T. Hinds at

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CfP: 1st Int'l Workshop on Cross-Layer Operation Aided Multimedia Streaming

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IEEE VTC Spring 2011

5th-18th May 2011,  Budapest, Hungary

Workshop Objectives
The object of the workshop is to discuss innovative solutions enabling enhanced video streaming for point to point and point to multi-point transmissions in an IP based wireless heterogeneous system, based on cross layer adaptation of the whole transmission chain. Many areas of improvements classified in the following in four categories are considered in the workshop: i) applications for content delivery; ii) networking; iii) radio access; iv) cross-layer solutions. Indeed, today's approach, relying on traditional separation approaches and focusing on services delivered over homogeneous networks, does not allow to meet the on-going demands to maintain the required Quality of Service (QoS) for each of the users, who have different needs and requirements. This workshop looks into solutions allowing the applicability of a cross-layer design approach to the end-to-end multimedia streaming.

Workshop Topics

  • Cross-layer design
  • Multimedia streaming over wireless networks
  • Quality assessment
  • Point to multipoint video communication
  • Signaling for cross-layer communication
  • System adaptation and control
  • Media adaptation to wireless delivery
  • Wireless network adaptation for video streaming
  • Radio resource allocation for heterogeneous traffic
  • Error correction for video applications

Workshop Organizers

  • Roberta Fracchia (THALES, FR)
  • Marco Chiani (CNIT, IT)
  • Gianmarco Panza (Cefriel, IT)
  • Roxana Ojeda (COMSIS, FR)
  • Peter Amon (SIEMENS, DE)
  • Maria Martini (Kingston Univ., UK)
  • Janne Vehkaperä (VTT, FI)
  • Laszlo Pap (BME, HU)

Important Dates
Paper submission deadline: 15th November 2010
Acceptance notification: 9th January 2011
Final paper due: 20 February 2011

Technical Program Committee

  • Marco Cagnazzo (TelecomParis, FR)
  • Dario Rossi (TelecomParis, FR)
  • Stefano Bregni (Politecnico di Milano, IT)
  • Giacomo Verticale (Politecnico di Milano, IT)
  • Ivan Bajic (Simon Fraser University, Canada)
  • Lingfen Sun (University of Plymouth, UK)
  • Christian Timmerer (Klagenfurt University, AUT)
  • Tasos Dagiuklas (TEI of Mesolonghi, GR)
  • Tony Q.S. Quek (Institute for Infocomm Research, SG)
  • Jo Yew Tham (Insitute for Infocomm Research, SG)
  • Anil W. Fernando (University of Surrey, UK)
  • Oscar Mayora (CreateNet, IT)
  • Dmitri Jarnikov (Eindhoven University of Technology, NL)
  • Andre Kaup (University of Erlangen-Nuremberg, DE)

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MMSys'11: Special Session on Modern Media Transport

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List of accepted papers: here
Special Session on Modern Media Transport
**** MMSys 2011 ****
ACM Multimedia Systems 2011
February 23-25, 2011
San Jose, California

Standards developing organizations (SDOs) such as MPEG have developed various technologies for multimedia transport, e.g., MPEG-2 TS (Transport Stream) and MP4 file format. These technologies have been widely accepted and heavily used by various industries and applications, such as digital broadcasting, audio and video transport over the Internet and streaming to mobile phones, etc. At the same time, many other SDOs such as the IETF, IEEE, and 3GPP have been providing various protocols to deliver multimedia content packetized or packaged by such MPEG transport technologies.

Recently, broadcasting services and mobile services have started converging, and it is expected that this convergence trend will continue with other services. Additionally, new emerging multimedia services are being introduced. These developments in the multimedia arena mean that various content and services will be delivered over different networks, and the users expect to consume these services using those networks, depending on the availability and reach of the network at the time of consumption. To deploy efficient solutions for the transport of modern media in an interoperable and universal fashion, especially given the recent increased demand in the heterogeneous network environment, there is urgency for an international multimedia transport standard.

The main objectives of modern media transport are (but not limited to):

  • Efficient delivery of media in an adaptive fashion over various networks with the main emphasis on IP-based networks including terrestrial, satellite, and cable broadcast networks,
  • Enable the use of cross-layer designs to improve the Quality of Service/Experience (QoS/QoE),
  • Enable building integrated services with multiple components for hybrid delivery over heterogeneous network environments,
  • Enable bi-directional low-delay services and applications, such as online gaming and conversational services,
  • Enable efficient signaling, delivery and utilization of multiple content protection and rights management tools.
  • Enable efficient content forwarding and relaying,
  • Enable efficient one-to-many delivery,
  • Provision means for resiliency against errors and packet losses.

Dynamic Adaptive Streaming over HTTP (DASH)
In recent years, the Internet has become an important channel for delivery of multimedia. The HTTP protocol is widely used on the Internet. Recently, it has also become a primary protocol for the delivery of multimedia content, and a number of proprietary solutions are available. This special session solicits novel contributions and breaking results on all aspects of Dynamic Adaptive Streaming over HTTP (DASH) and Modern Media Transport. In addition to the main objectives introduced above, we are also interested in (but not limited to) the following areas:

  • Efficient delivery of modern media over HTTP in an adaptive, progressive download/streaming fashion,
  • Support for streaming of live multimedia content,
  • Efficient and ease of use of existing content distribution infrastructure components such as CDNs, proxies, caches, NATs and firewalls;
  • Efficient mapping from existing formats (e.g., MPEG-2 TS, MP4) to delivery formats specifically designed for HTTP streaming.

Important Dates

  • Paper submission: October 29th, 2010
  • Acceptance notification: December 1st, 2010
  • Camera-ready submission: December 15th, 2010

Paper Submission

  • Full papers submitted can be up to 12 pages long.
  • Short papers can be up to 6 pages long.
  • Papers for this special session must be submitted via

Papers must adhere to the standard double-column ACM proceedings style format. Be sure to include space for the conference permission block in the lower left-hand corner of the first page. If using LaTeX, you may use the “tighter alternate style” option.
For more details see:

TPC members

  • Ali C. Begen, Cisco, Canada
  • Laszlo Böszörmenyi, Klagenfurt University, Austria
  • Per Fröjdh, Ericsson Research, Sweden
  • Pascal Frossard, EPFL, Switzerland
  • Carsten Griwodz, University of Oslo, Norway
  • Pål Halvorsen, University of Oslo, Canada
  • Behnoosh Hariri, University of Ottawa, Canada
  • Yuwen He, Dolby, USA
  • Hermann Hellwagner, Klagenfurt University, Austria
  • Wei Tsang Ooi, National University of Singapore, Singapore
  • Jörn Ostermann, Leibniz Universität Hannover, Germany
  • Thomas Schierl, Fraunhofer/HHI, Germany
  • Thomas Stockhammer, Nomor Research GmbH, Germany
  • Christian Timmerer, Klagenfurt University, Austria
  • Ye-Kui Wang, Huawei, USA
  • Roger Zimmermann, National University of Singapore, Singapore

[1] ISO/IEC JTC 1/SC 29/WG 11 (MPEG), “Call for Proposals on MPEG Media Transport (MMT)”, N11539, Geneva, Switzerland, July 2010. Available at
[2] ISO/IEC JTC 1/SC 29/WG 11 (MPEG), “Requirements on MPEG Media Transport (MMT)”, N11540, Geneva, Switzerland, July 2010. Available at
[3] ISO/IEC JTC 1/SC 29/WG 11 (MPEG), “MPEG Media Transport (MMT) Context and Objective”, N11541, Geneva, Switzerland, July 2010. Available at
[4] ISO/IEC JTC 1/SC 29/WG 11 (MPEG), “Use Cases for MPEG Media Transport (MMT)”, N11542, Geneva, Switzerland, July 2010. Available at
[5] “HTTP Streaming of MPEG Media”,

Special Session Organizer
Christian Timmerer, Klagenfurt University, Deptartment of Information Technology (ITEC), Multimedia Communications Group; Tel: +43 463 2700 3621; Fax: +43 463 2700 99 3621; E-mail: christian.timmerer(at); Web:; Address: Universitätsstraße 65-67, 9020 Klagenfurt am Wörthersee, Austria

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Program for ACM Workshop on Advanced Video Streaming Techniques for Peer-to-Peer Networks and Social Networking

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Workshop website:
Workshop date/location: 29th October 2010, Florence, Italy (co-located with ACMMM'10)
ACM Multimedia:

Workshop presentations: No central server will be used for oral presentations at the Conference Workshops. Authors can either use their own laptops or the PC available in each Workshop room (Windows based machine). Authors are invited to check this program page to see the time slots allocated for oral presentations. For poster and demo sessions at the Workshops, boards are available that can hold a poster up to 100 cm width x 250 cm length (3.28 ft x 8.2 ft). 

Finally, we also invite you to refer to the Conference web page ( for any further information about venue, travel, weather, accommodations, restaurants, and so on.

Final Program:

09:00-09:15: Welcome Address by the Chairs
09:15-10:00: Keynote Address
Session Chair: Christian Timmerer (Klagenfurt University, Austria)
Audio/visual content and metadata delivered over the open Internet using P2P-Next: some experiences from a broadcaster's perspective by George Wright, Head of Prototyping, BBC Research and Development

10:00-10:30: Short presentation of posters and demos

10:30-11:00: Coffee break

11:00-12:00: Session 1 – Networking and Streaming
Session Chair: Christian Timmerer (Klagenfurt University, Austria)

  • P2P Group Communication with Layer-Aware FEC by Yago Sánchez; Cornelius Hellge; Thomas Schierl; Thomas Wiegand (Fraunhofer Institute for Telecommunications – Heinrich-Hertz-Institute, Germany)
  • P2P streaming with LT codes: a prototype experimentation by Andrea Magnetto; Rossano Gaeta; Marco Grangetto; Matteo Sereno (Universita' di Torino, Italy)
  • Peer-to-Peer streaming based on network coding improves packet jitter by Riccardo Bernardini; Roberto Cesco Fabbro; Roberto Rinaldo (University of Udine, Italy)

12:00-13:00: Session 2 – Application
Session Chair: Pascal Frossard (EPFL, Switzerland)

  • A Novel Cache Optimization Algorithm and Protocol for Video Streaming in Pure Peer-to-Peer Networks by Carlo Giulietti; Dan Schonfeld; Rashid Ansari (University of Illinois at Chicago, USA)
  • Access Control to BitTorrent swarms using Closed Swarms by Keith Mitchell (Lancaster University, United Kingdom); Njaal Borch (Norut IT, Norway); Ingar Arntzen (Norut IT, Norway); Dusan Gabrijelcic (Jozef Stefan Institute, Slovenia)
  • Advanced Prefetching and Upload Strategies for P2P Video-on-Demand by Osama Abboud; Konstantin Pussep; Markus Müller; Aleksandra Kovacevic; Ralf Steinmetz (Technische Universitaet Darmstadt, Germany)

13:00-14:30: Lunch

14:30-15:30: Session 3 – Design
Session Chair: Keith Mitchell (University of Lancaster, UK)

  • A Hybrid Approach to Modeling End-to-End Delay in P2P Networks by Philipp Berndt; Dominic Battré; Odej Kao (Technische Universität Berlin, Germany)
  • Design and Implementation of a Generic Library for P2P Streaming by Luca Abeni; Csaba Kiraly; Alessandro Russo; Marco Biazzini; Renato Lo Cigno (University of Trento, Italy)
  • Design and Evaluation of an Optimized Overlay Topology for a Single Operator Video Streaming Service by Stefano Giordano (University of Pisa, Italy); Rosario G. Garroppo (University of Pisa, Italy); Stella Spagna (University of Pisa, Italy); Saverio Niccolini (NEC Europe Ltd., Germany); Jan Seedorf (NEC Europe Ltd., Germany)

15:30-16:00: Coffee break

16:00-18:00: Session 4 – Posters and Demos
Session Chair: Gabriella Olmo (Politecnico di Torino, Italy)

  • An Analytical Approach to Model Adaptive Video Streaming and Delivery by Razib Iqbal; Shervin Shirmohammadi (University of Ottawa, Canada)
  • Consistent Image Decoding from Multiple Lossy Versions by Marco Dalai; Serena Malavasi; Riccardo Leonardi (University of Brescia, Italy)
  • Improving Quality-of-Experience for Multiple Description Video Transmission in Peer-To-Peer Networks by Simone Milani; Giancarlo Calvagno (University of Padova, Italy)
  • Knapsack Problem-based Piece-Picking Algorithms for Layered Content in Peer-to-Peer Networks by Michael Eberhard (Klagenfurt University, Austria); Tibor Szkaliczki (Computer and Automation Research Institute, Hungarian Academy of Sciences, Hungary); Hermann Hellwagner (Klagenfurt University, Austria); Laszlo Szobonya (Computer and Automation Research Institute, Hungarian Academy of Sciences, Hungary); Christian Timmerer (Klagenfurt University, Austria)
  • MixNStream: Multi-Source Video Distribution with Stream Mixers by Philip Chun Ho Yuen; Gary Chan (The Hong Kong University of Science and Technology, P.R. China)
  • Three Highly Available Data Streaming Techniques and Their Tradeoffs by Sumita Barahmand; Shahram Ghandeharizadeh; Anurag Ojha; Jason Yap (USC, USA)
Demos: (tentative)
Closed Swarms by Njaal Borch (Norut IT, Norway)
Abstract: In the search for commercial opportunities within online media distribution, Closed Swarms has been designed to provide content providers with a flexible, distributed authentication mechanism for P2P media distribution. Closed Swarms allow the provider control of bandwidth costs, yet it can enable new business models which might be better suited for the Internet Age, such as freemium solutions or added benefits for paying customers. We will demonstrate how Closed Swarms can be used to provide a free, non-guaranteed community service while logged-in users are provided with a full VOD experience.
Visualizing and Reducing Wait Delay in Periodic Butterfly Communication by Philipp Berndt (Technische Universität Berlin, Germany)
Abstract: Butterfly graphs are probably best known from their use in the Fast Fourier Transform (FFT) algorithm. A different use is in P2P VoIP Conferencing, where each node combines the audio streams it receives, before forwarding the data to the next stage. Dead time between the reception and the relaying of audio data adds up along the data paths to an overall latency that impairs the communication experience. This wait delay heavily depends on the send phase offsets between the nodes. Our demonstration shows how this problem can be interactively visualized and studied, what relationships exist and which methods can be employed to minimize overall wait delay.

Developing P2P Streaming Applications with GRAPES by Luca Abeni (University of Trento, Italy)
Abstract: In this demonstration, it will be shown how to use the GRAPES library to build a simple P2P application, either single-threaded or multi-threaded (the demo application will show how the GRAPES API allows to change the structure of the application from single-threaded to multi-threaded by simply modifying the main application loop). It will also be shown how to easily change the implementation of a GRAPES module (the peer sampler), and the impact of such a change on some performance metrics will be evaluated.
NextShareTV demo by P2P-Next (
Abstract: The NextShareTV is a Set-top-box confirming to the NextShare platform, developed as part of the P2P-Next project. As a NextShare device, it collaborates with NextSharePC implementations as well, bridging the TV set and the PC in a single content swarm.

18:00-18:30: Best Paper Aware + Closing

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