CLASS - LEAN Mean Versioning Machine


Bruce Devlin TV-Bay Magazine
Read ezine online
by Bruce Devlin
Issue 103 - July 2015

Today, there are numerous ways to access and consume media, be it through UHDTVs, smartphones, tablets or other screens, devices or services. Because there are so many outlets and even more bytes of information as a result, content owners and broadcasters are working incessantly to deliver top-quality content at record speeds. By reversioning, repackaging and repurposing media, they are able to meet and stay ahead of consumer demands.

The problem is redistributing without degrading the source quality. Media is transcoded at a number of touch points in the production and distribution process, and the average number of times content is encoded and decoded is higher than the design efficiency of most codecs commonly used by broadcasters today. The fact is that the average number of transcodes from content origination to its eventual destination is as high as twenty, and media cannot withstand the transformation.

When it comes down to it, companies who shoot or produce content arent necessarily those who will aggregate it, and those who aggregate content are not always the same as those who create the various accompanying media assets (trailers, promos, etc.). At every step, the file will be encoded, decoded and re-encoded several times. Add in additional factors, such as content destined for overseas distribution or incoming from foreign producers and broadcasters, and it may have to go through even more transcode steps before its final output. There is a significant impact on the technical and subjective quality of the media that the end user eventually sees. Media processing is CPU (or GPU) intensive, and fixing the problem is quite expensive.

To improve quality while minimizing expenses, content owners are looking for ways to reduce the number of times media is processed while simultaneously ensuring that any necessary processing is of superior quality. One method is to know where all of the raw components are when creating packages and versions so it can be virtually reassembled and stored as metadata. This leaves the source media in its original state with no quality reduction. Here, files are only re-encoded at the point of delivery. This eliminates any waste and makes sure that only that information of value appears, otherwise known as LEAN or just-in-time methodology.

This process insulates and protects operators from media manipulation and processing complexities, increasing the time for creative decisions and putting the human, rather than the machine, back into the business process.

Tracking the metadata, and knowing its origin, is another key factor in automating media processing and retaining a MAM-driven workflow. As new resolutions, frame rates and codecs emerge with the developing market, the demand for content drives the number and variety of acquisition devices up to take advantage of them. In order to keep the best end quality, content owners should understand media as in depth as possible to be able to adapt with new technology. Only then can the correct media-processing path be chosen, because there is no one-size-fits-all approach to pushing out content.

As acquisition formats are developed and technology offerings continue to expand, it is more important than ever to have a good asset management workflow. This is the only way for content owners to stay on top of the trends and manage any obstacles behind the scenes without adding additional stress to a tricky system.


Tags: iss103 | bruce devlin | bruce\'s shorts | dalet academy | education | acquisition | uhdtv | Bruce Devlin
Contributing Author Bruce Devlin

Read this article in the tv-bay digital magazine
Article Copyright tv-bay limited. All trademarks recognised.
Reproduction of the content strictly prohibited without written consent.

Related Interviews
  • DALET ACADEMY NAB 2015

    DALET ACADEMY NAB 2015

  • Training and education within the broadcast industry

    Training and education within the broadcast industry

  • Cambridge Imaging Systems at BVE 2014

    Cambridge Imaging Systems at BVE 2014

  • SMPTE on BroadcastShow LIVE at IBC 2013

    SMPTE on BroadcastShow LIVE at IBC 2013

  • Elemental Technologies - AWS acquisition at NAB 2016

    Elemental Technologies - AWS acquisition at NAB 2016

  • Elemental Technologies - Amazon acquisition at IBC 2015

    Elemental Technologies - Amazon acquisition at IBC 2015

  • Blackmagic and Fusion at IBC 2014

    Blackmagic and Fusion at IBC 2014

  • Ateme at IBC 2014

    Ateme at IBC 2014


Articles
Protecting the continuity of transmission
Lorna Garrett Your viewers love you. You consistently bring them their preferred channels 24/7. They’ve come to rely on you for their viewing pleasure. They never miss cheering on their beloved sports teams. They’re the envy of their friends as they watch live concerts of their favourite bands. They gather the family around and catch up on their must-see shows. They don’t have a bad word to say about you.
Tags: iss134 | garland | gpl | streaming | artel | disaster recovery | Lorna Garrett
Contributing Author Lorna Garrett Click to read or download PDF
Accelerated Workflows with eGPU
Mike Griggs From the UK’s National Trust to magazine publishers to manufacturers, digital content creator Mike Griggs has a wide and varied portfolio of clients for whom he creates 3D art, motion graphics and multimedia exhibits. A typical day might involve sampling birdsong near Virginia Woolf’s country estate or creating 3D animations for VR. To keep on top of these demands, Griggs wanted to take the full power of the GPU computing revolution on the road.
Tags: iss134 | sonnet | egpu | amd | post production | editing | Mike Griggs
Contributing Author Mike Griggs Click to read or download PDF
State of the Nation - November 2018
Dick Hobbs - new There is an interesting seminar called Size Matters at the KitPlus Show – organised by the publishers of this fine magazine – at MediaCityUK in Salford on 6 November. It’s a talk by cinematographer Alistair Chapman on the way that camera technology is changing, and in particular the size of the electronic device which creates the image is growing.
Tags: iss134 | cmos | 35mm | AJA | Arri | Blackmagic | Canon | Datavideo | GoPro | Grass Valley | Hitachi | Ikegami | JVC | Kinefinity | Nikon | Panasonic | Red | Sony | jpeg2000 | Dick Hobbs - new
Contributing Author Dick Hobbs - new Click to read or download PDF
Giving Welsh sport a global audience
Adam Amor From the Ospreys Rugby Union team, to the Football Association of Wales, as well as national cycling, swimming and boxing coverage, Port Talbot based Buffoon Film and Media has been heavily involved in putting Welsh sports on the world stage.
Tags: iss134 | blackmagic | atem | buffoon | micro studio camera | Adam Amor
Contributing Author Adam Amor Click to read or download PDF
University and Mental Health
Rhiannon Jenkins University study and mental health has been in the media quite a bit over the last year, and I’m sure there are many people wondering what is going on? The issues are complex, and I suppose the focus of employability off the back of a degree course has raised the stress stakes for a lot of young people. I’m only qualified to talk about this from my perspective, and my story began when I joined a course not knowing I had a mental health condition.
Tags: iss134 | portsmouth uni | mental health | student | tvfutures | Rhiannon Jenkins
Contributing Author Rhiannon Jenkins Click to read or download PDF