Audiovisual Interaction
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Audiovisual Interaction
If you like audiovisual interaction, you are on the right page! We post news articles that interest us: multi-screen solutions, OTT, social TV, navigational interfaces, digital content on TV, companion devices and the web, synchronised advertising and much much more!
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Dynamic Adaptive Streaming over HTTP/2.0

MPEG Dynamic Adaptive Streaming over HTTP (DASH) is a new streaming standard that has been recently ratified as an international standard (IS). In comparison to other streaming systems, e.g., HTTP progressive download, DASH is able to handle varying bandwidth conditions providing smooth streaming. Furthermore, it enables NAT and Firewall traversal, flexible and scalable deployment as well as reduced infrastructure costs due to the reuse of existing Internet infrastructure components, e.g., proxies, caches, and Content Distribution Networks (CDN). Recently, the Hypertext Transfer Protocol Bis (httpbis) working group of the IETF has officially started the development of HTTP 2.0. Initially three major proposals have been submitted to the IETF i.e., Googles' SPDY, Microsofts' HTTP Speed+Mobility and Network-Friendly HTTP Upgrade, but SPDY has been chosen as working draft for HTTP 2.0. In this paper we implemented MPEG-DASH over HTTP 2.0 (i.e., SPDY), demonstrating its potential benefits and drawbacks. Moreover, several experimental evaluations have been performed that compare HTTP 2.0 with HTTP 1.1 and HTTP 1.0 in the context of DASH. In particular, the protocol overhead, the performance for different round trip times, and DASH with HTTP 2.0 in a lab test scenario has been evaluated in detail.


Via Nicolas Weil
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Dynamic Adaptive Streaming over HTTP: From Content Creation to Consumption

This is the tutorial presentation during this years' ACM Multimedia 2012 presented by Christian Timmerer from Klagenfurt University (Austria) and Carsten Griwodz from Simula Research (Norway).

 

Abstract: In this tutorial they present dynamic adaptive streaming over HTTP ranging from content creation to consumption. It particular, it provides an overview of the recently ratified MPEG-DASH standard, how to create content to be delivered using DASH, its consumption, and the evaluation thereof with respect to competing industry solutions. The tutorial can be roughly clustered into three parts. In part I we will provide an introduction to DASH, part II covers content creation, delivery, and consumption, and, finally, part III deals with the evaluation of existing (open source) MPEG-DASH implementations compared to state-of-art deployed industry solutions.


Via Nicolas Weil
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MPEG-DASH Faces a Pivotal Year

MPEG-DASH Faces a Pivotal Year | Audiovisual Interaction | Scoop.it

As video untethers itself and increasingly finds consumers and their mobile devices, a priority for cable operators is finding the most efficient way to support the different platforms.

 

The focus is on adaptive bitrate streaming (ABS), which is the way in which the right amount of data is sent to devices based on their configuration and conditions on the wireless network they are on. The problem is that three main platforms are vying for supremacy: Apple’s HTTP Live Streaming (HLS), Microsoft’s Smooth Streaming (part of Silverlight) and Adobe’s Dynamic Streaming for Flash.


Via Nicolas Weil, Ludovic Bostral
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Streaming Servers 2012: New Features, New Opportunities

Streaming Servers 2012: New Features, New Opportunities | Audiovisual Interaction | Scoop.it

During last week's Video Infrastructure Summit, held in conjunction with Streaming Media Europe, Tim Siglin had yet another opportunity to host an annual panel looking at the state of applications, including streaming servers and platforms. Representatives from five companies—Adobe, Anevia, CodeShop, Microsoft, and RealNetworks—shared insights into their products and applications.

 

The panelists had four questions to answer, and each company contributed equally to the discussion :

- What's New in Streaming Servers?

- New Features, New Opportunities

- Barriers to Adopting MPEG DASH

- What's Next in Streaming Servers?


Via Nicolas Weil
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