Broadcast File Delivery
File Based Programme Delivery
The media industry in the UK was transformed on 1st October 2014, when every UK broadcaster made the switch to the AS-11 UK DPP file format for programme delivery.
Since then, our work has expanded to new territories and new formats, but with the same basic aim: delivering a simpler, more effective global content supply chain; by enabling interoperability in order to simplify workflows and reduce cost.
Learn more about the AS-11 specifications, the UK delivery requirements, and the Commercials & Promos delivery requirements.
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AMWA AS-11 Specifications
The AMWA AS-11 specifications provide common formats for delivery of air-ready programme master files.
AS-11 UK DPP
Developed in conjunction with UK broadcasters, the AS-11 UK DPP file delivery specification provides a format for completed programme deliveries ('air-ready masters'). It is based on the MXF OP1A format with AVC Intra Class 100 compression for HD, and IMX at 50 Mb/s for SD. It includes a minimum set of requirements for Programme Editorial and Technical Metadata, based on EBU Core. The UK broadcasters' programme delivery requirements are all based on AMWA AS-11 UK DPP.
AMWA AS-11 X9
Developed in collaboration with NABA, AMWA AS-11 X9 provides a specification for the delivery of air-ready masters in HD, based on the requirements of North American broadcasters. A member of the AMWA AS-11 X family of specifications, the AS-11 X1 specification is based on the MXF OP1A format, with AVC High Profile GOP encoding. AS-11 X9 was published in 2018.
AMWA AS-11 X1
AMWA AS-11 X1 is designed for broadcasters commissioning UHD content. It offers a high quality yet easily playable file, suitable for broadcast and OTT workflows. It was published in 2018, and has been adopted for deliveries to BBC iPlayer. AS-11 X1 uses Long GOP AVC essence wrapped in MXF OP1A, with BT.2100 HDR, supporting HLG and PQ (HDR10), at 25/50 fps and 4:2:2 colour sampling.
AMWA AS-11 X5 and X6
Two forthcoming AMWA specifications have been drafted to build on the existing DPP specification, harmonising the short-form specifications with the rest of the AS-11 X family. The new specifications support embedded metadata and add a new location within the file header for the carriage of subtitle data.
These specifications are in active development, and are expected to be deployed by broadcasters in 2020, so please contact us if you'd like to get involved.
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, and a series of supplements is also available, giving additional advice on Metadata, HDR, Surround Sound, 3D and Super16.
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:
Supplements
A series of supplements give additional advice on PSE, HDR, Surround Sound, 3D, and Super16:
Software for managing AS-11 DPP metadata
AS-11 UK DPP files include a number of pieces of metadata that describe the content of the file. There are a wide range of tools available for inserting, reading, validating, and updating this metadata.
Some available options from DPP member companies are listed below.
Note: the following information is provided by the DPP based on submissions of information given by these vendors. Except where the products are AMWA AS-11 certified by the DPP test lab, we have not independently verified the functionality of these products. If you are a DPP member providing tools for AS-11 metadata, and wish to have your product included in this list, please contact Rowan.
Dalet AmberFin
AmberFin offers both subscription and one-time purchase options. It allows extensive manipulation of AS-11 metadata, including:
- Read and display metadata that's embedded in an AS-11 UK DPP file
- Create an XML sidecar from metadata that's embedded in an AS-11 UK DPP file
- Create an AS-11 UK DPP file with embedded metadata - sourced from an XML file
- Create an AS-11 UK DPP file with embedded metadata - sourced from the user interface
- Update metadata in an existing AS-11 UK DPP file - by rewrapping / creating a new file
- Update metadata in an existing AS-11 UK DPP file - in place in the existing file
GrayMeta Iris
Iris offers both subscription and one-time purchase options. As an advanced quality control tool, it allows you to read and display metadata that's embedded in an AS-11 UK DPP file.
Marquise ICE
As an advanced quality control tool, ICE allows you to read and display metadata that's embedded in an AS-11 UK DPP file.
ICE can also read and display RDD6 Dolby surround metadata from the VANC data of an AS-11 UK DPP file.
Marquise MIST
MIST enables extensive manipulation of AS-11 metadata, including:
- Read and display metadata that's embedded in an AS-11 UK DPP file
- Create an XML sidecar from metadata that's embedded in an AS-11 UK DPP file
- Create an AS-11 UK DPP file with embedded metadata - sourced from an XML file
- Create an AS-11 UK DPP file with embedded metadata - sourced from a user interface
- Update metadata in an existing AS-11 UK DPP file - by rewrapping / creating a new file
MIST also offers detailed manipulation of RDD6 Dolby surround metadata included in the VANC of existing AS-11 UK DPP files, including both displaying such metadata and writing it out to XML. It also enables you to insert RDD6 Dolby surround metadata either from an XML file or entered in the MIST user interface.
Prime Focus Technologies CLEAR Media ERP
CLEAR is an enterprise resource planning system for media companies. It is available on a subscription (SaaS) basis, and offers extensive manipulation of AS-11 metadata, including:
- Read and display metadata that's embedded in an AS-11 UK DPP file
- Create an XML sidecar from metadata that's embedded in an AS-11 UK DPP file
- Create an AS-11 UK DPP file with embedded metadata - sourced from a user interface
- Update metadata in an existing AS-11 UK DPP file - by rewrapping / creating a new file
- Update metadata in an existing AS-11 UK DPP file - in place in the existing file
Rohde & Schwarz Clipster
Clipster is an advanced mastering tool. It allows you to create an AS-11 UK DPP file with embedded metadata, by entering that data into the user interface.
Root6 ContentAgent
ContentAgent offers extensive manipulation of AS-11 UK DPP metadata, including the ability to:
- Read and display metadata that's embedded in an AS-11 UK DPP file
- Create an XML sidecar from metadata that's embedded in an AS-11 UK DPP file
- Create an AS-11 UK DPP file with embedded metadata - sourced from an XML file
- Create an AS-11 UK DPP file with embedded metadata - sourced from a user interface
- Update metadata in an existing AS-11 UK DPP file - by rewrapping / creating a new file
- Update metadata in an existing AS-11 UK DPP file - in place in the existing file, Insert edit into an AS-11 UK DPP AVC-I MXF
Venera Technologies Pulsar and Quasar
As advanced quality control tools, Pulsar and Quasar allow you to read and display metadata that's embedded in an AS-11 UK DPP file. They also enable you to test the metadata for conformance with defined rules as part of the QC process.
Pulsar is an on-premise solution, with one-time and pay-per-use pricing options.
Quasar is a cloud-based offering, with subscription and pay-per-use pricing options.
DPP Metadata Application
In the early days of AS-11 UK DPP, we stimulated adoption of the specification by offering a free desktop application for adding DPP metadata to files. This enabled production companies to create file based TV programmes containing the correct metadata for delivery to UK broadcasters.
The application was created as an interim measure until such time as vendors were able to offer this functionality within their products. It is no longer supported or updated, and you should use a commercially available tool, such as those listed above, instead.
If you require a copy of the DPP Metadata Application, you can download it without support or warranty from this link. It relies on old versions of Java which have known security vulnerabilities, and you use it at your own risk. It is also 32-bit, which means it is not compatible with the latest releases of macOS. Again, we strongly recommend using a commercially available tool instead.
It is intended that the application's source code will, in 2021, be released under an open source license. If you wish to be updated about this, please contact our CTO, Rowan.
Storing AS-11 DPP metadata in IMF
If you're receiving or creating IMF packages, and want to later transform them into AS-11 UK DPP files, you may need to store AS-11 DPP metadata in your IMF. There are multiple ways to do this, and so in order to enable interoperability, Recommendation DPP003 defines a common way to do this.
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 AMWA. 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
We will provide three sample files are available for AMWA AS-11 X6:
- clean (no captions / subtitles), with music video metadata [available below]
- subtitled using legacy OP-47 mechanism, with commercial metadata [available below]
- subtitled using IMSC1.1, with commercial metadata
[available soon - please email Ulrich if you'd like to be notified when published]
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.
Get involved
To find out more or to get involved with this work, please get in touch.
If your company is not a DPP member, you can learn more about the benefits of membership, or contact Rowan to discuss joining.
If your company is not a DPP member, you can learn more about the benefits of membership, or contact Rowan to discuss joining.