We are happy to announce that we are going to attend this year’s ACM Multimedia (ACM MM), Orlando, Florida, (Nov. 3-7, 2014.).
Title: Self-Organized Inter-Destination Multimedia Synchronization for Adaptive Media Streaming
Authors: B. Rainer, and C. Timmerer
As social networks have become more pervasive, they have changed how we interact socially. The traditional TV experience has drifted from an event at a fixed location with family or friends to a location-independent and distributed social experience. In addition, more and more Video On-Demand services have adopted pull-based streaming. In order to provide a synchronized and immersive distributed TV experience we introduce self-organized Inter-Destination Multimedia Synchronization (IDMS) for adaptive media streaming. In particular, we adapt the principles of IDMS to MPEG-DASH to synchronize multimedia playback among geographically distributed peers. We introduce session management to MPEG-DASH and propose a Distributed Control Scheme (DCS) to negotiate a reference playback timestamp among the peers participating in an IDMS session. We evaluate our DCS with respect to scalability and the time required to negotiate the reference playback timestamp. Furthermore, we investigate how to compensate for asynchronism using Adaptive Media Playout (AMP) and define a temporal distortion metric for audio and video which allows the impact of playback rate variations to be modeled with respect to QoE. This metric is evaluated based on a subjective quality assessment using crowdsourcing.
HTTP traffic has grown extensively driven by the immense growth of multimedia traffic. Nowadays it could be seen as “the” protocol to deploy new services and applications and it is also heavily used by the industry, due to the fact that it provides advanced features for modern Internet architectures:
1. it is a content centric protocol that decouples names from addresses through DNS
2. it provides caching elements and middle boxes as reverse and forward proxies
3. it enables scalable and flexible content deployment with content distribution, already leveraged by Content Distribution Networks (CDN)
However, there is still room for improvements as many services are still using HTTP/1.0 which has been specified in May 1996 or are not utilizing all features of HTTP/1.1 such as persistent connections or pipelining. For example …
Read more …
Institute of Information Technology, Multimedia Communication (MMC) Group (Prof. Hermann Hellwagner)
The MMC group at Klagenfurt University, Austria, is offering a full, three-year PostDoc position (available now) in a basic research project called CONCERT (http://www.concert-project.org/). Important facts about the project are given in the following. We seek candidates with strong expertise in one or several of the following areas: Multimedia Communication, Machine Learning, Multi-Agent Systems, Uncertainty in Artificial Intelligence (Probabilistic Models, Bayesian Networks, Game Theory). Applications should be sent to Prof. Hermann Hellwagner <email@example.com>.
Title: A Context-Adaptive Content Ecosystem Under Uncertainty (CONCERT)
Duration: 3 years
- University College London (UK): Prof. George Pavlou, Dr. Wei Chai (Coordinator)
- University of Surrey (UK): Dr. Ning Wang
- Ecole Polytechnique Fédérale de Lausanne (CH): Prof. Pascal Frossard
- Alpen-Adria-Universität (AAU) Klagenfurt (AT): Prof. Hermann Hellwagner
Project character and funding
CONCERT is an international basic research project accepted as a CHIST-ERA project under the Call for Proposals “Context- and Content-Adaptive Communication Networks”. CHIST-ERA is an ERANET consortium, part of the EC FP7 Programme “Future and Emerging Technologies (FET)” (http://www.chistera.eu/). Funding is provided by the national basic research funding agencies, in Austria the FWF (Austrian Science Fund).
The objective of CONCERT is to develop a content ecosystem encompassing all rele- vant players which will be able to perform intelligent content and network adaptation in highly dynamic conditions under uncertainty. This ecosystem will have as basis emerging information-/content-centric networking technologies which support in- trinsic in-network content manipulation. The project will consider uncertainty aspects in the following two application domains: (1) social media networks based on user generated content and (2) CDN-like professional content distribution (Content Distri- bution Networks). Three dimensions of uncertainties will be addressed: (1) heteroge- neous and changing service requirements by end users, (2) threats that may have adverse impacts on the content ecosystem, as well as (3) opportunities that can be exploited by specific players in order to have their costs reduced … [read more]
Booth & Demos at CES 2014 in Las Vegas, NV, USA
You can meet us at the CES show & fair in Las Vegas, NV, USA from Jan. 8th to 10th. You can visit us at our booth and demo location at at the IEEE Booth (#30242) in the South Hall of the Las Vegas Convention Center on Jan. 9-10, 2014. Christian Timmerer and Benjamin Rainer will present our work within the EU FP7 project Social Sensor and our MPEG-DASH work.
You can also meet bitmovin at CES: http://www.bitmovin.net/blog-details/meet-us-at-ces-2014-in-las-vegas-mpeg-meeting-in-san-jose.html
Demo @ CCNC 2014 in Las Vegas, NV, USA
Straight after the CES show, we are present at the IEEE Consumer Communication & Networking Conference (CCNC) on Jan. 11, 2014. You can visit our Demo:
Real-time Multimedia Streaming in Unstructured Peer-to-Peer Networks
Description: Our approach is based on semantic search in unstructured peer-to-peer (P2P) networks for querying content in mobile ad hoc networks and MPEG-DASH for actually streaming the real-time multimedia.
Authors: Benjamin Rainer (Alpen-Adria-Universität Klagenfurt, Austria); Christian Timmerer (Alpen-Adria-Universität Klagenfurt, Austria); Matthias Klusch (DFKI, Germany); Patrick Kapahnke (DFKI, Germany)
107th MPEG Meeting in San Jose, CA, USA
Last but not least you will find us at the 107th MPEG Meeting in San Jose, CA, USA from Jan. 12 to 17, 2014.
How to double your effective media stream bitrates, by www.bitmovin.com
MPEG DASH was created to deal with a highly fragmented media streaming ecosystem struggling with fragmentation and lack of interoperability of many proprietary solutions. Still that fragmentation has not stopped video to grow to being over half of mobile, and almost three-quarters of fixed traffic (YE2012). But this situation …
Read more in the bitmovin technology blog …
bitmovin GmbH is providing industry leading over the top streaming solutions and server encoding systems, enabling best-quality media experience for the user. Our main expertise is technology related to cutting-edge standards and multimedia technologies, which is the basis for our cloud-based transcoding services and high-quality client products. As part of our expansion we are looking for additional employees to support our team in our offices in Klagenfurt (Austria):
- Senior Software Engineer (m/f)
- Junior Software Engineer (m/f)
Your field of responsibility:
- Design and development of software systems for multimedia andstreaming purposes in cloud-, Web- and mobile environments
- Usage of cutting-edge standards & technology
- Development of new and innovative products
- Working in a young and innovative team with international customers in a worldwide market
- Variety of training opportunities within the company
- Salery above average & collective agreement
More Information: www.bitmovin.net/jobs.html
We look forward to your application (CV, references and photo) via e-mail to firstname.lastname@example.org
We are pleased to welcome the new mirrors at Academia Sinica (Taiwan) and University of Massachusetts Amherst (USA) to our distributed DASH (D-DASH) dataset. You can find more information on the D-DASH dataset on our website at: Distributed DASH Dataset Description
Currently we have the following eight active mirrors of the D-DASH dataset:
- ITEC, MMC Group Alpen-Adria Universitaet Klagenfurt, Austria
- GPAC Project Telecom ParisTech, France
- QUALINET Database Czech Technical University, Czech Republic
- Internet Media Group Politecnico di Torino, Italy
- Medialab TEI Crete, Crete
- TNO, Media & Networking Services Group TNO Netherlands, Netherlands
- Academia Sinica Academic, Taiwan
- University of Massachusetts Amherst, USA
D-DASH is open for everyone, add your site:
We greatly appreciate new sites for the D-DASH dataset, so everybody is welcome to join D-DASH. Therefore, only a few steps are necessary, as described >>here<<
We are happy to provide a DASH over ICN/CCN-enabled version of libdash. We also contributed our DASH over ICN/CCN approach to the ICN Research Group (ICNRG), presented in this input draft: draft-video-streaming-over-ICN-00.txt and the associated slides.
You can find more information, build-instructions and test setups on this website (here) as well as in the DASH over ICN-branch of the libdash repository on github: https://github.com/bitmovin/libdash/tree/CCN. There you can also find instructions for streaming DASH content via CCN from (1) a local repository and (2) from the public available CCN Node ccn.bitmovin.net
Please help us and vote for our libdash library as best MPEG-DASH product in the reader’s choice award voting of Streaming Media. As you probably know, libdash is the reference library of the MPEG-DASH standard and is the enabler for DASH on various platforms.
You can find the voting here: http://www.streamingmedia.com/ReadersChoice/2013/Vote.aspx
Thanks a lot!
The libdash Team
Michael Grafl from the ITEC-Team has released his new tools for Scalable Video Coding (SVC) bitstream reordering to support Dynamic Adaptive Streaming over HTTP (DASH).
- Demultiplexer for SVC-DASH. Splits the SVC bitstream into chunks, one per layer. Also generates an MPD. This tool is deployed at the server.
- Re-Multiplexer for SVC-DASH. Reorders SVC layer chunks into a single SVC bitstream. This tool is deployed at the client (after the DASH client, before the SVC decoder).
Find more information at the SVC Demux & Mux page as well as on Sourceforge.