Since its inception, the DPP has worked to make the exchange of content and metadata in the supply chain more seamless.
We've worked on important standards and specifications like AS-11 and IMF. We've defined metadata sets to help interoperability in specific use cases. And we've worked on recommendations for the exchange of live content.
We've also delivered outputs that help with ensuring that the process of content exchange is as smooth as possible:
- Guidance for Content Supplier Onboarding. Read more here.
- Setting Delivery Requirements for broadcasters in the UK. Read more here.
- Delivery Requirements for commercials and promos. Read more here.
Supplying the VOD Revolution
In 2020, the DPP published an in-depth analysis of the workflows and formats involved in delivering content to VOD platforms.
With a lack of commonality between organisations, it unearthed a picture of chaos, complexity, and inefficiency. However, a clear path to a more efficient future also emerged, leading to publications like Guidance DPP007 Content Supplier Onboarding and Recommendation DPP008 Business to Business Metadata Exchange.
When a content distributor delivers content to a platform, the two organisations must first complete a process of onboarding to set up and test the workflows and technology.
Onboarding is a multi-step process requiring the distributor to build multiple profiles, create & validate test files, and configure automated systems. These steps are not always clearly defined, leading to mis-communication and delays.
Based on the input of major VOD platforms, content producers, and distributors, we published Guidance DPP007: Best Practices for Content Supplier Onboarding.
Delivery to UK Broadcasters
Since 1st October 2014, UK broadcasters have accepted files using the AMWA AS-11 DPP file format. Each broadcaster's delivery requirements are based on a common DPP template document, with a live delivery template also available. Finally, a series of supplements provides additional information, including additional advice on Metadata, HDR, Surround Sound, 3D and Super16.
The current DPP delivery templates specify AS-11 X1 for UHD programme delivery, however some broadcasters have chosen to move to IMF as a preferred alternative. With this in mind, we are in the process of authoring a new template for UHD delivery, based on IMF Application DPP (ProRes), as specified in SMPTE RDD 59-1. We are currently working with the broadcasters to specify the scope of such a document, and will release it for use later in 2022.
Broadcaster delivery requirements
The delivery requirements for each UK broadcaster are available here:
DPP template delivery requirements
Each broadcaster's delivery requirements are based on the common DPP template. The latest versions of these are as follows:
A series of supplements give additional advice on PSE, HDR, Surround Sound, 3D, and Super16:
Commercials and Promotions
Just as with programme delivery, it’s important to have common specifications for delivery of short-form content, such as Commercials, Sponsorship and Promotional material.
UK HD Commercials, Sponsorship, Promotions, and Presentation Events
Historically in the UK, each broadcaster used their own specifications for the delivery of Commercials and Sponsorship. A unified DPP delivery specification is now available, alongside an equivalent for Promotions and Presentation Events.
AMWA AS-11 X5 and X6
AS-11 X6 has now been published by the AMWA and is in production use by broadcasters. The specification was defined by DPP members to facilitate delivery of air-ready video for short form content such as advertisements, promos, and music videos.
It is based on AVC-i 100 at 1080i50 and provides:
- embedded subtitles (IMSC1.1 or OP-47)
- advert-specific metadata
- metadata for music videos
A corresponding draft specification exists for UHD resolutions: AS-11 X5. It is ready to be finalised whenever one of our members decides to receive deliveries in UHD.