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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DBee/BaaO Webinar Series - Technologies et Tendance Vidéo [Présentation]

Nicolas Weil's insight:

Le replay du webinar est visible en ligne :

http://web.dbee.com/dbee/20121218/index.php

 

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Streaming Video Technologies Panorama, part 1 : Hardware-accelerated Encoding

Streaming Video Technologies Panorama, part 1 : Hardware-accelerated Encoding | Video Breakthroughs | Scoop.it

Maybe some of you remember the Tarari Encoder Accelerator for Windows Media which came on market in 2005 as a FPGA loaded PCI board. It was a 10K$ investment but it could seriously boost your encoder performances and it was a transparent solution for all encoders integrating Windows Media SDK. That was maybe the only real reliable option to do HD encoding decently at that time. More confidential were the Ambric cards for accelerating MainConcept H.264 and MPEG-2 SDK, which were found to be working with Inlet Armada transcoding farm.

Since these days, Tarari boards vanished, Windows Media encoding has been somehow outshined by H.264 and CPU performances have made great jumps, but the needs for hardware accelerated encoding solutions is still there, mainly because :
- H.264 encoding is also hungrily crunching CPU cycles
- screen types to feed have exploded with mobile, tablets, connected TVs and all other OTT devices
- adaptive streaming requires far more versions of the same file that previously mono-bitrate encodings
- available rackspace is not endless and it’s not convenient to manage hundreds of encoding nodes
- new formats like 3D and SVC are demanding strong encoding power
- you like to play with cool high-end encoders and you have strong convincing skills when it comes to make your boss buy expen$ive hardware


So let’s take a look at the different options available on the market now !

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Streaming Video Technologies Panorama, part 2 : Server-Side Stream Repackaging

Streaming Video Technologies Panorama, part 2 : Server-Side Stream Repackaging | Video Breakthroughs | Scoop.it
There are basically two ways to sustain the extensive growth of video formats that you must, as a media distributor, serve to your different clients’ target devices : the most common answer is to choose the best in breed most-powerful encoders to prepare all the target formats during the content preparation time (see Panorama article N°1 on this topic), but you can adopt a different approach saying that you want to prepare your contents once and have the distribution part of the overall workflow take care of the repackaging and protection of the contents on the fly.

Server-side repackaging of the streams consists eventually in :
- choosing languages in audio and subtitle tracks available in the original mux (optional)
- transcoding/transrating the video content in different sizes/bitrates from a high quality video file (optional)
- applying a DRM compatible with the output format (optional)
- generating the manifest file corresponding to the target adaptive streaming technology (mandatory)
- remuxing and chunking the video data according to the output protocol requirements (mandatory)

Historically, repackaging was pushed as a quick solution for broadcasters to add iOS streams on top of existing Smooth or Flash streams. In a wider OTT/Adaptive Bitrate perspective, this alternative approach means : less files to manage in the main production workflow, less storage, less bandwidth to populate the origin servers, smaller time to contents’ online availability and easier support for new formats – shortly said, an agile path.

Potentially a risky one, but quite attractive…

Let's examine the available options on the market, to do it on your own platform or in the cloud !
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