There is also the performance element in that state-of-the-art cloud transcoding platforms can be best for live streaming where latency must be kept to a minimum. Elemental Technologies, exhibiting at NAB, has scored heavily with leading broadcasters by touting high transcoding performance based on massively parallel processing within the cloud. By using clusters of off the shelf graphical processing units, Elemental keeps costs down while being able to boast that it can transcode both SD and HD content “faster than real time”, which is not quite as magic as it sounds. It merely means that transcoding is not on the critical time path and is executed more quickly than some of the other functions involved in end to end content delivery. Transcoding then does not add to the latency budget.
Nicolas Weil's insight:
NAB news from Elemental, Zencoder, Haivision & Media Excel.
The future is live. The future is real-time. The future is now. That's the hype anyway. And as it has a habit of doing, the hype is slowly becoming reality. We are seeing live searches, live tweets, live location, live reality augmentation, live crab (fresh and local), and live event publishing. One of the most challenging of all live technologies is that of live video broadcasting. Imagine a world in which everyone becomes a broadcaster and a consumer of video streams, all in real-time (< 250 msec latency), all so you can talk and interact directly without feeling like you are in the middle of a time shift war. The resources and the engineering needed to make this happened must be substantial. How do you do that?
BitTorrent has just posted a call for broadcast engineers to help with the building of BitTorrent Live.
BitTorrent Live is a new peer-to-peer live streaming protocol. It allows content creators to scale their reach to audiences of millions with near-zero latencies and minimal infrastructure investment.
“Built with users, from scratch, it’s designed to take the principles of the BitTorrent protocol, and apply them to streaming,” according to BitTorrent’s call to broadcasters, “That means: no barriers to broadcast. That means: the more people who tune in, the more resilient your stream. That means: you can share video with a massive audience, in realtime – without bandwidth costs or infrastructure requirements.
Broadpeak, a leading provider of content delivery networks (CDN) and video-on-demand (VOD) servers for cable, IPTV, OTT, and hybrid TV operators worldwide, today launched nanoCDN, a revolutionary CDN technology that leverages home networks to dramatically reduce infrastructure investments for operators and enable them to more efficiently deliver high-quality video services to end users. The first application of nanoCDN will be used for live OTT video delivery, with more applications to be supported in the future. Broadpeak will showcase nanoCDN for the first time at IBC2012 in Amsterdam.
nanoCDN improves the scalability of live OTT TV content by effectively managing video consumption peaks that are not supported by the network infrastructure. Utilizing nanoCDN, cable and telecom operators can cost-effectively deliver high-quality, live OTT video services to millions of simultaneous viewers using only a few megabits per second from the operator network. nanoCDN can seamlessly be integrated with any existing video headend. Completely transparent to end users, the cost-effective solution does not require a dedicated client and is compatible with any DRM system.
Over the last few weeks, Windows Azure Media Services was used to deliver live and on-demand video streaming for multiple Olympics broadcasters including: France Télévisions, RTVE (Spain), CTV (Canada) and Terra (Central and South America). Partnering with deltatre, Southworks, gskinner and Akamai - we helped to deliver 2,300 hours of live and VOD HD content to over 20 countries for the 2012 London Olympic games.
Below are some details about how these broadcasters used Windows Azure Media Services to deliver an amazing media streaming experience...
In just a few weeks, NASA/JPL was able to design, build, test, and deploy their web hosting and live video streaming solutions that were built using a variety of services on AWS. NASA/JPL’s live video streaming architecture was developed on a combination of Adobe Flash Media Server, Amazon Elastic Compute Cloud (Amazon EC2) instances running the popular nginx caching tier, Elastic Load Balancing, Amazon Route 53 for DNS management, and Amazon CloudFront for content delivery. AWS CloudFormation automates the deployment of live video streaming infrastructure stacks across multiple AWS Availability Zones (AZ) and regions.
Now that you intensively crawled through part 1 of this blog-post and asked yourself all the right questions intended to avoid common OTT-traps, we can safely presume that you are ready to spend some (or a lot of) time and money on launching your own multiscreen OTT service. So it’s definitely time to choose your bricks, mortar and trowels...
As multiscreen OTT/TV Everywhere offers do proliferate while each video tradeshow approaches and connected devices multiply, it’s difficult to monitor all of them and get a 100% accurate idea on who’s got the best offer. Basically your ideal technical partner will most likely be a unique target depending on your background (telco/content owner/TV channel…), your needs (target devices, business models, time to market…), your workflow constraints (CMS, billing, deployed transcoding engines, already deployed apps…) and your budget. Nevertheless, what I tried to do first is to isolate a list of actors whose offer is end-to-end and sufficiently versatile to cover the most common use cases and devices, then provide a complementary list with actors who provide less information but are also known in this market, and then wrap up the post with a bunch of ideas on how you could DoItYourself with less integrated/locking-in solutions. This way, you will end-up with a complete panorama of available technical solutions in mind.
Designed for broadcasters, webcasters, and content providers, the IPGuard is a seamless IP and MPEG-2 TS transport layer switching device that can convey MPEG-2 or MPEG-4/H.264 in SD or HD content. It delivers 1+1 redundancy with two parallel IP input sources and two mirrored IP outputs. When the system detects a failure on one input – such as no IP stream or MPEG-2 or H.264 transport stream failure – it automatically switches over to the other valid input to provide continual output.
The IPGuard offers a bypass mechanism via solid state relays that creates 100% service availability in case of power outage. It is designed to provide an automatic 1+1 redundancy of network equipment that delivers services over IP – such as encoders, multiplexers, gateways, ASI to IP adapters, etc. Additionally, the IPGuard can also be operated to re-synchronize and re-align the same MPEG-2 stream that is carried over redundant IP-based networks. The latter introducing different network propagation delay, the IPGuard is able to re-align both IP streams to provide a seamless change-over between redundant IP streams.
At NAB, the Mobile500 Alliance, one of two competing groups of broadcasters working to make Mobile DTV a reality in the United States, brought a second-generation MDTV system to the convention that melds OTA Mobile DTV reception via an iPad dongle receiver with the social media interactivity of Twitter.
Allegro DVT extends its portfolio of transcoding solutions, and introduces AL2400, its High Density transcoder. This 1RU unit is a new form factor, hardware accelerated transcoder, designed with bulk transcoding farms in mind.
AL2000 and AL2400 are extended, to meet the latest operators/broadcasters requirements. This includes:
- WebService HTTP RESTFul API, to integrate the transcoders with non-SNMP managers.
- MPEG-DASH output, for next generation delivery.
- Embedded Origin Server, for maximum integration, where competitors need several boxes.
- DVB-Teletext and ClosedCaption to SMPTE TTML subtitling &Multi-lingual iOS5, to meet governmental requirements.
Broadpeak’s nanoCDN solution will be launched commercially early this year, giving telcos and cable operators the opportunity to reduce bandwidth consumption and simultaneously increase the QoE for customers watching live streaming video on multiscreen devices. This product has the potential to change the economics of streaming but until now there have been only limited details available about how it works and what it can achieve. Broadpeak has just started releasing more details.
As a teaser for my upcoming blog post (“OTT distribution optimization technologies”), here is a bonus study for you, dear readers…
It aims at isolating the main OTT Video Services trends (End-user driven & Production driven) and at pointing out relevant technologies with their maturity estimation and corresponding Vendor + Technology offer tuples.
Enjoy and share your thoughts/technology suggestions in comments either here or on the blog !
The BBC Olympics sports broadcast service is one of the largest media events of 2012. It has brought the video service industry to a totally new level, earning for the 2012 Olympics the popularity of "truly digital games". In this context, it is critical to acknowledge the importance of expertise gained and leverage it in further growth. In this post, we are going to dwell into the project, its implementation, and valuable experience that you can apply to your own projects.
Whether you're required by law to offer closed captions or not, there's good reason to add them to your online video workflow. Here's how.
Though relatively few websites are required to provide closed captions for their videos, any website with significant video content should consider captioning. Not only does it provide access for deaf and hard-of-hearing viewers, but captions and the associated metadata can dramatically improve video search engine optimization. In this introduction to closed captions, you’ll learn about who needs to caption and who doesn’t (and why you may want to anyway), the available workflows for captioning live events and on-demand files, and a bit about web caption formats and how to marry them to your streaming files.
nanoStream Web Plugin is a browser based live video capture and encoding software for streaming live video and audio to internet based media servers and other network clients. nanoStream is compatible to latest generation internet video encoding standards and supports Flash and iPod compatible H.264 encoding modes, from low resolution mobile video up to Full HD highest quality video streaming.
Several Extensions are available, for 3d stereoscopic video encoding and streaming from multiple camera views, and additional coding formats; WindowsMedia, MPEG-2 and VP8.
Advances in the live video workflow have opened the doors to IP acquisition and routing, moving us towards 99.9999% reliable live streaming.
The question is a common one: “Why is live video so complex, and why should it be any different than the video-on-demand (VOD) content readily available everywhere—including the many thousands of new VOD clips made available on YouTube every day?
Simply put: The implications of on-time delivery of live events are significant. Publishing VOD content is not time-sensitive. If we are minutes or even days late publishing VOD content, there is usually no business effect or viewer impact. With live events however, timing is crucial as there are specific business implications and viewers who are waiting to tune into an event looking for a time sensitive result like the winner of the Super Bowl or NBA finals.
Swedish pay TV provider Viaplay has become one of Europe’s first to offer a full hybrid service combining digital terrestrial with OTT.
The operator, which is part of the Swedish media company MTG (Modern Times Group), has teamed up with French set top box maker Netgem to develop a dedicated Viaplay box. This delivers a range of free to air terrestrial channels combined with paid premium content delivered over-the-top (OTT). Viaplay says this is the first time a pay-tv operator in the Nordics has combined adaptive bitrate streaming technology and free-to-air digital terrestrial TV in one single channel list with seamless channel change.
HLS is available on iOS and Mac OSX Quicktime Player only. Onlinelib brings HLS to millions of devices with help from Adobe Flash Player. The HLS Streaming Solutions from Onlinelb are ready-to-go solutions :
Cloud streaming delivery models such as Microsoft's Windows Media Azure could change the landscape for dedicated encoders.
In our recent coverage of the National Association of Broadcasters' show (NAB), we mentioned Windows Azure Media Services as one of several emerging cloud models for scaling up streaming delivery to television-level viewership. The benefit of cloud-based delivery holds potential, yet one part of Azure Media Services was under-reported: live streaming.
Why does live streaming in Azure Media Services demand more attention? We think the inclusion of at least one live encoder option is a precursor to a larger trend that will occur within the live encoding space: a move towards one-off rentals of live encoding and away from buying dedicated live encoding resources.
New Dynamic Transcoder Overlays allow customers to use compositing to overlay text, images, motion graphics, and secondary video sources instantly onto streams passing through the Wowza Transcoder AddOn. The feature can be used in many cases, including the dynamic insertion of advertising, titling, sporting event scores, and picture-in-picture video. It also allows single-display viewing of multicamera broadcast and surveillance feeds on any screen. Dynamic Transcode Overlays can be manually configured or pre-programmed based on external events, making this a powerful new tool for adding premium TV-like experiences at commodity prices.