Video Breakthroughs
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Video Breakthroughs
Monitoring innovations in post-production, head-end, streaming, OTT, second-screen, UHDTV, multiscreen strategies & tools
Curated by Nicolas Weil
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Everything You Ever Wanted to Know About IDR Frames but Were Afraid to Ask

Everything You Ever Wanted to Know About IDR Frames but Were Afraid to Ask | Video Breakthroughs | Scoop.it

Depending upon your encoding tool, you may have access to a checkbox or number box that controls something called IDR frames. What are these creatures and what is their significance? More imporantantly, what's the optimal setting? Well, let's just say that if you're seeing anything like the random blockiness in the picture below when you drag the playhead back and forth in the video window, you're probably using the wrong value.


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Compliance Procedures for Dynamic Adaptive Streaming over HTTP (DASH)

Compliance Procedures for Dynamic Adaptive Streaming over HTTP (DASH) | Video Breakthroughs | Scoop.it

Master’s Degree Project by Kashaf Mazhar (Stockholm, Sweden).


The main objective of the thesis is to formulate compliance procedure of DASH. The need for conformance procedures focused in the thesis can be summarized as:

- It forms the outline for the interaction between the client and server for the exchange of information before the streaming begins. This interaction needs to follow the rules and regulations laid out by the DASH standard itself. So the main aim is to formulate the rules and then implement them so that common grounds for DASH interaction can be laid out. Services that conform to theses grounds can be regarded as DASH.

- Then the file format conformance is investigated to correlate the information exchanged and the media content itself that is used by the streaming service. Providing cross reference mechanisms confirms that the content that is available on the server for streaming is following DASH specification. This is important to check because the features and efficiency that DASH proclaims is possible only via the existence of the attributes that are being checked by conformance procedures.

- As the standardization process is underway it is important to clarify the implementation details for the process as well. In light of this a link needs to be created between the theoretical concepts mentioned and the practical implementation required for that. The conformance procedures will serve this purpose as the implementation part of it will test the concepts of DASH in practice and will provide grounds to make amendments in the specification where required.


READ THE THESIS HERE : https://eeweb01.ee.kth.se/upload/publications/reports/2011/XR-EE-LCN_2011_011.pdf


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A Test Bed for DASH featuring Session Mobility

A Test Bed for DASH featuring Session Mobility | Video Breakthroughs | Scoop.it

In this research paper, Christopher Müller and Christian Timmerer have described a test-bed for DASH featuring session mobility. It is based on international open standards and fully integrated into the well-known VLC. In particular, it facilitates MPEG-21 Digital Item in order to leverage existing media repositories such as UPnP and provides a testing framework for actual dynamic adaptive streaming algorithms including the possibility for transferring a running session from one device to another.


READ PAPER HERE : http://www-itec.uni-klu.ac.at/bib/files/mueller_A_Test_Bed_for_DASH_featuring_Session_Mobility.pdf

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Usages of DASH for Rich Media Services

Usages of DASH for Rich Media Services | Video Breakthroughs | Scoop.it

In this research paper, Cyril Concolato, Jean Le Feuvre and Romain Bouqueau have investigated how Rich Media languages can be used with adaptive streaming over HTTP technologies, especially MPEG DASH. They have shown the need to provide standard ways to identify parts of a DASH session for track selection. They have also presented how Rich Media services can be carried in a DASH session along with audio and video data to ensure tight synchronization between the media data and the interactive service.


Finally, they proposed some light modifications to DASH and ISO Base Media File to allow building a smart, bandwidth-friendly data carousel of interactive services and meta-data in a DASH session.


READ THE PAPER HERE : http://biblio.telecom-paristech.fr/cgi-bin/download.cgi?id=11064

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How Efficient is HEVC?

How Efficient is HEVC? | Video Breakthroughs | Scoop.it

A performance comparison between H.264/AVC and Working Draft 4 of HEVC in November 2011 has stated that the HEVC codec can achieve the same quality as H.264 with a bitrate saving of around 39-44%.

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Stream TV to launch glasses-free 3D television

Stream TV to launch glasses-free 3D television | Video Breakthroughs | Scoop.it

Stream TV Networks has announced that it will unveil its new Ultra-D technology at CES 2012. Ultra-D is a next generation 3D without glasses display technology that surpasses all 3D viewing experiences offered to date.


Developed by Stream TV Networks, the producer of the eLocity brand of mobile tablets launched first in 2010, the Ultra-D technology is strictly proprietary and leverages custom hardware, middleware techniques and software algorithms to create unprecedentedautostereoscopic 3D imagery.

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JPEG 2000 : it has benefits over IP networks, but some issues exist

JPEG 2000 : it has benefits over IP networks, but some issues exist | Video Breakthroughs | Scoop.it

JPEG 2000 has caught the attention of the professional media world for good reason. First, it closely matches some workflows, where the production process operates on each frame of a video stream as a discrete unit. This is different from MPEG-2 and MPEG-4 AVC, where, during the reconstruction process, algorithms reference frames before and after the frame being reconstructed. The ability to compress each frame as a free-standing unit has made it popular in the digital intermediate space in Hollywood. JPEG 2000 is also of interest to those who want lossless compression. It can provide a bit-perfect reconstruction of the original compressed image, although at a cost in terms of bandwidth. Also, the wavelet compression used in JPEG 2000 provides some unique opportunities that are not available in other compression methods.

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Understanding Continual Partial Attention (CPA) and the Second Screen Ecosystem

Understanding Continual Partial Attention (CPA) and the Second Screen Ecosystem | Video Breakthroughs | Scoop.it

Continual Partial Attention (CPA) is a term that has been trickling into the new media vocabulary for a couple years. It's both a bane and an opportunity.


And it's Standard Operating Procedure for the growing audience who simultaneously watch TV and tinker with their smartphones or tablets, which is up to 80 percent of viewers according to a new Razorfish study.


CPA means they are refocusing intermittently toward the content—and the screen—that most engages them at that moment. Leaving aside attention deficit and advertising retention implications, CPA requires new ways, literally, to look at programming and delivery.

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Video storage developments : has RAID reached the end of the road?

Video storage developments : has RAID reached the end of the road? | Video Breakthroughs | Scoop.it

Object storage devices

File-based storage does not inherently store information that is useful to a storage manager. Video files are unstructured data, as opposed to the structured data typically found in a relational database. A look at an MPEG video file reveals no information that would indicate whether it can be deleted or archived, or that it should be kept in nearline or online storage for immediate access. Such information as rights windows is kept in the right management database, and possibly the DAM system. This lack of important information at the file level leads to inefficient use of storage.


In contrast, object-based storage can encapsulate useful information with the media files as a media object. For example, information like keep forever, delete after a certain date when the rights expire, or not scheduled to play to air can be deleted from disk but maintained on the tape library. Currently, archive manager software and DAM implement these functions. For media needed for decades, encapsulating such information in an object makes more sense than with external applications, which may well not be around in the future. This moves more intelligence to the storage, which can interrogate objects to determine whether to retire or migrate aging data autonomously of any external applications.

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4K2K : the format offers an intermediate step on the way to Ultra High HD

4K2K : the format offers an intermediate step on the way to Ultra High HD | Video Breakthroughs | Scoop.it

If you are in London during the 2012 Olympics without a ticket, there is an alternate way for you to “be present” at certain events. The BBC plans to broadcast part of the games in Ultra High HD (UHD) in select locations. UHD, which has been under development by NHK for years, delivers an “8K4K” (7680 × 4320) pixel image. With a planned commercial introduction in five years, an intermediate production step is necessary. This step, to be generally introduced at CES 2012, is “4K2K.”


For many in the broadcast industry, 4K2K will be a surprise — likely an unwanted surprise. For those in the film world, 4K2K is not new at all. Film is routinely telecined to 4K2K files for digital intermediate (DI) processing, and features are shot with 4K2K cameras.


In this first of a two-part series, we will begin our exploration of 4K2K by examining several current 4K2K cameras. Doing so will introduce the many challenges involved in this technology.

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ofmlabs codecs : A suite of JavaScript audio codecs

ofmlabs codecs : A suite of JavaScript audio codecs | Video Breakthroughs | Scoop.it

Web browsers are becoming more and more powerful, and new APIs like the Web Audio API and Audio Data API are making the web an ever more interesting and dynamic place. At ofmlabs we are invested in improving the state of audio on the web, and with JSMad showed that decoding audio purely in JavaScript is possible thanks to these APIs and the hard work of browser makers and spec authors. And now we've done it again. Introducing alac.js, a port of the recently open sourced Apple Lossless decoder to JavaScript. Now it is possible to play MP3 and Apple Lossless even in browsers without native support.

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VidScale aims to make TV Everywhere better

VidScale aims to make TV Everywhere better | Video Breakthroughs | Scoop.it

Due to the increase in the amount of streaming video content on the Internet, many ISPs are faced with either investing in backbone hardware or trying to add intelligence into the network. It’s an even bigger problem as cable and telecom operators add TV Everywhere services, which expand the amount of streaming content that is available to their users. Enter VidScale, which seeks to make more efficient use of existing infrastructure, by introducing content delivery network and transparent caching technology into their networks.

 

VidScale’s MediaWarp product is a combination CDN, transparent caching and bandwidth optimization solution aimed at the cable and telco industry, as those players seek to make more content available for streaming to PCs, mobile devices like tablets, Internet-connected TVs and other devices.

 

See also "Avail-TVN picks VidScale's MediaWarp to power TV Everywhere play" : http://www.fierceiptv.com/story/avail-tvn-picks-vidscales-mediawarp-power-tv-everywhere-play/2011-12-19


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Creating a simple OSMF video player for AIR for TV using Flash Builder

Creating a simple OSMF video player for AIR for TV using Flash Builder | Video Breakthroughs | Scoop.it

In this article, you'll learn how to create a simple video player that streams Adobe HTTP Dynamic Streaming (HDS) video to Internet-connected televisions, set top boxes, and other devices. Playing video content on Internet-connected devices requires the AIR for TV (A4TV) 2.5.1 or higher runtime. This article describes how to configure Flash Builder to develop and compile a simple player for A4TV using the Open Source Media Framework (OSMF).

 

The A4TV runtime requires developers use the proper AIR namespace in their application descriptor file. OSMF facilitates player development for consuming HDS content that cannot be consumed by the popular FLVPlayback or VideoDisplay components. The sample project described in this article uses:

- AIR 2.5 SDK

- Flex 3.6 SDK

- OSMF MediaPlayerSprite class


EQUIVALENT TUTORIAL WITH FLASH PRO : http://www.adobe.com/devnet/flashmediaserver/articles/osmf-air-tv-flash-pro.html 

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HLS vs. HDS - What Is the Difference and Why You Should Care

HLS vs. HDS - What Is the Difference and Why You Should Care | Video Breakthroughs | Scoop.it

Unless you work daily in the streaming business, it’s sometimes hard to get into the nuances of technologies, and what the impact is for your long term strategy. HLS and HDS are both HTTP based streaming protocols, and sound very similar, but are fundamentally very different.


HLS stands for HTTP Live Streaming and is Apple’s proprietary streaming format based on MPEG2-TS. It’s popular since it provides the only way to deliver advanced streaming to iOS devices. It often mistakenly gets defined as HTML5 streaming, but is not part of HTML5.

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Recording and Delivery of HbbTV Applications

Recording and Delivery of HbbTV Applications | Video Breakthroughs | Scoop.it

In this research paper, Jean-Claude Dufourd, Stéphane Thomas and Cyril Concolato have explored the different issues raised by the recording and on-demand playback of broadcast HbbTV services containing interactive applications. They proposed a set of HbbTV native tools for the base of the system, DASH tools for adding random access to MPEG-2 TS in the user recording case, and also adding HTTP streaming in catch-up systems. They proposed guidelines to application developers and small extensions to HbbTV. They described possible implementations based on MPEG-2 TS and discussed an alternative based on ISOBMFF.


Future work includes the implementation of a recording functionality in their in-progress open source HbbTV player, the checking of recording guidelines in their HbbTV application validation software, proposing the extensions described above for standardization in the next version of HbbTV, and exploring the playback of HbbTV services on non-HbbTV devices such as mobiles and tablets in the context of convergence in the home.


READ PAPER HERE : http://biblio.telecom-paristech.fr/cgi-bin/download.cgi?id=11193

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An Innovative Tool for Measuring Video Streaming QoE

An Innovative Tool for Measuring Video Streaming QoE | Video Breakthroughs | Scoop.it

Bell Labs has developed new tools for more precise measuring of the quality of experience (QoE) of video streaming services, particularly video quality.


Highlights

- Current QoE measures don’t accurately measure video streaming performance

- Accurate QoE measurement differentiates video streaming services

- New tools allow operators to focus on the video part of QoE to attract and retain customers


Video has greater emotional impact and renders visual complexity better than any other medium. Successful video delivery requires an understanding of these twin factors, and how best to shape the video experience to deliver them. Delivering an outstanding QoE is critical for video streaming service providers. It is a differentiating factor in attracting new users, but also the best way to enhance multimedia revenue streams.

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Using DASH and MPEG-2 TS for Adaptive Multiplatform Delivery

Presentation on use of DASH with MPEG-2 TS for Adaptive Multiplatform Delivery

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MPEG-DASH rides choppy seas of patents

MPEG-DASH rides choppy seas of patents | Video Breakthroughs | Scoop.it

A proposed standard to stream video online smoothly, regardless of network conditions, has been pushed forward with some rather unexpected patent-holder help.MPEG-DASH was approved in a vote by ISO national member bodies as a way to stream media over HTTP. Publication of the standard is expected "shortly".


MPEG-DASH could supersede a raft of proprietary and royalty-protected technologies, developed by tech companies to stream media to mobile devices in particular - which are at the mercy of varying network speeds and connectivity conditions.

For fans of free and open source software, it'll raise the hope that HTML5 video can sidestep royalty-encumbered players currently available from the likes of Microsoft, Adobe or Apple.

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BBC R&D White Paper : 3D-TV R&D Activities in Europe

BBC R&D White Paper : 3D-TV R&D Activities in Europe | Video Breakthroughs | Scoop.it

3D-TV is a topic that has been studied for many years in Europe. Through the research frameworks of the European Commission in particular, a number of long-term issues have been addressed to overcome limitations of the traditional two-view stereoscopy. This article gives a brief overview of the goals and achievements of some completed European projects starting in the 1990s. It then reviews the topics related to 3D-TV in recent European research. Finally an overview with a selection of recent projects is presented.

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Real loudness control : does a real answer exist amid theories and frustration?

Real loudness control : does a real answer exist amid theories and frustration? | Video Breakthroughs | Scoop.it

Loudness, if you will, increasingly has been making noise in the broadcast industry. Standards organizations have been working long and hard to publish recommendations, best practices and specifications to guide the industry and ensure consistent measurements.


Governments are introducing legislation to promote and enforce better regulation. Equipment vendors are writing articles to discuss the situation. Experts have penned books on the subject. Yet, despite all the available information, there remains a great deal of uncertainty as to how to best deal with the issue.


The loudness paradox lies at the heart of the matter. On one side, there is a desire to maintain the artistic integrity of the original program (translation: don't modify audio). On the other, there is a need to minimize viewer frustration with regard to loudness inconsistencies across different content and channels. This often requires some level of audio processing.


The paradox is this: How can loudness be kept consistent if the audio is not modified?

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Taylor Isaacson's curator insight, November 4, 2015 1:55 PM

I disagree against Audio Loudness, I love my music loud and no one will stop me.

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'The King's Speech' first to use Technicolor's second screen App

'The King's Speech' first to use Technicolor's second screen App | Video Breakthroughs | Scoop.it

The King’s Speech, The Weinstein Company’s Academy Award winner for Best Picture, will be the first feature film to deploy Technicolor’s MediaEcho second-screen viewing experience App.


Developed in-house by Technicolor, MediaEcho is an application that delivers an interactive second-screen experience to viewers using a Blu-ray Disc player with BD-Live (Internet connectivity) and a tablet device, without disrupting the primary content on the main screen.


Content displayed on the tablet can be played in sync with the on-screen feature or viewed later. MediaEcho utilises BD-Live technology to enable a true two-way communication between any Internet connected Blu-ray player and tablet device, providing users with additional content, including: bonus streaming audio and video content delivered from the Cloud, audio commentary excerpts, movie and historical trivia, behind-the-scenes information, social media integration allowing users to post comments, share content and connect during their movie-watching experience, actor/cast profiles, connecting to IMDB and other online databases, E-commerce.

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Facility A/V timing : managing A/V sync remains challenging for broadcasters

Facility A/V timing : managing A/V sync remains challenging for broadcasters | Video Breakthroughs | Scoop.it

Although content distributors have recently gotten the message on audio operations — in the form of federally mandated requirements on commercial and program loudness — the issue of well-managed A/V sync remains unresolved. Despite awareness by program distributors, this problem has persisted, with digital technology both exacerbating it and providing solutions for it.


Managing A/V sync consists of four basic elements: specification and design of equipment and systems, synchronization measurement, correction, and operational diligence. Specification requires a mind-set to plan and manage the issue in new and existing infrastructures. Equipment is available that can measure A/V sync, either out-of-service (using flash-and-beep or similar technologies), or in-service, using watermarking or fingerprinting.

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Digital Rapids' Transcode Manager 2.0 : the new version enhances scalability and automation

Digital Rapids' Transcode Manager 2.0 : the new version enhances scalability and automation | Video Breakthroughs | Scoop.it

The rapid growth of multiscreen distribution opportunities and increasing volume of content to be processed are putting more operational pressures on broadcasters and media enterprises than ever before, and driving fundamental shifts in their content processing workflows. Striving to grow their operations and output capabilities while managing costs, large media organizations are seeking more efficient automation of their remaining manual processes, and ways to scale cost-effectively to meet new opportunities and peaks in demand.


Version 2.0 of the Digital Rapids Transcode Manager automated media transformation software was designed to directly address these challenges. Built on the new Kayak application platform, version 2.0 combines the software's established quality, format flexibility and performance benefits with new features including logic-driven workflow automation, dynamic deployment flexibility and elastic scalability. Like the earlier releases, version 2.0 is optimized for high-volume, multiformat workflows, supporting a distributed architecture with up to hundreds of transcoding nodes and dozens of compression and container formats for acquisition, production, archive, broadcast and multiscreen distribution applications.

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Multi-Screen To Join Big Screen At International CES

Multi-Screen To Join Big Screen At International CES | Video Breakthroughs | Scoop.it

Most of the noise in Las Vegas this January is expected to come from new advances in IP connectivity in many 2012 step–up models, and how online video services and apps will now tie together TVs with handheld smartphones and tablets to further the burgeoning multi–screen entertainment experience.

 

Also expect to hear more news on the rollout of the UltraViolet initiative, which promotes a virtual content locker system that allows consumers to purchase a movie or video program on a Bluray Disc (for ex– ample) in the traditional way, and also get access to that title via their handheld devices through streaming portals, downloads and digital copies. International CES will also be the showcase for the launch of next–generation Mobile DTV devices that will now be equipped with back–channel connectivity to allow user authentication for video–on–demand services and viewer metering.

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HTML 5 Developer's Dilemma - Which Video File Format to Convert and Support

HTML 5 Developer's Dilemma - Which Video File Format to Convert and Support | Video Breakthroughs | Scoop.it

Until recently, the only way to embed video in web pages was using third-party plugins like Silverlight, Flash and QuickTime. HTML5 has made it easier to include multimedia in your web pages without any plugins, by just using the <video> element. However support for video and audio file formats varies across browsers. HTML5 capable browsers support different video formats.


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