ANSI SCTE 236-2017 pdf free download.Content Metadata
1.1. Executive Summary
This standard defines the metadata typically required when a provider delivers on demand content to a distributor.
1.2. Scope
This standard describes the grammar needed to represent information pertinent to the distribution,
presentation and consumption of multimedia content. In a normal use case, the metadata originates from a provider and is distributed to operators.
A set of files referenced in this document contains the XML Schema definition that may be used to
validate XML documents purported to conform to this specification. This specification and accompanying XML Schema documents are the Point of Authority for compliance.
1.3. Intended Audience
This standard is written for providers and consumers of content and metadata. It can be used to acquire Live to On Demand content or file based On Demand content. It can also be used for guide data information.
1.4. Areas for Further Investigation or to be Added in Future Versions
It may be useful in the future to look at other metadata standards and attempt to unify key names and definitions. Some examples include EIDR, Schema.org and Movielabs metadata standards and
specifications.
2. Normative References
The following documents contain provisions, which, through reference in this text, constitute provisions of this document. At the time of Subcommittee approval, the editions indicated were valid. All documents are subject to revision; and while parties to any agreement based on this document are encouraged to investigate the possibility of applying the most recent editions of the documents listed below, they are reminded that newer editions of those documents might not be compatible with the referenced version.
4. Compliance Notation
shall This word or the adjective “required” means that the item is an absolute requirement of this document. shall not This phrase means that the item is an absolute prohibition of this document. forbidden This word means the value specified shall never be used. should This word or the adjective “recommended” means that there may exist valid reasons in particular circumstances to ignore this item, but the full implications should be understood and the case carefully weighted before choosing a different course. should not This phrase means that there may exist valid reasons in particular circumstances when the listed behavior is acceptable or even useful, but the full implications should be understood and the case carefully weighed before implementing any behavior described with this label. may This word or the adjective “optional” means that this item is truly optional. One vendor may choose to include the item because a particular marketplace requires it or because it enhances the product, for example; another vendor may omit the same item. deprecated Use is permissible for legacy purposes only. Deprecated features may be removed from future versions of this document. Implementations should avoid use of deprecated features.
5.2. Definitions
Asset A combination of content and associated metadata, except for a Content Asset, which includes only metadata, and that directly or indirectly refers to content. An Asset may be an abstract container of references to other Assets with metadata that applies to all of the referenced Assets. Asset Distribution Interface The means by which assets (content as well as metadata describing that content) are transported from a provider to an Asset Management System. In addition, it provides a mechanism by which ‘block’ updates may be made to previously distributed assets. These block updates include metadata replacement, adding a new child asset to a previously received asset and deleting an asset. Asset Distribution System Provides transportation of Assets from the premises of the Assets’ provider to the premises of the MSO. It interfaces to the Asset Management System using the Asset Distribution Interface (ADI). Asset Management System An entity that stores and manages the lifecycle of Assets. Content Audio, video, or still picture creative materials used to form a movie, preview, poster art, etc. file (e.g., MPEG-encoded movie). Content Asset A specific type of Asset which is only metadata and which includes a reference to content. Metadata Descriptive data included in an Asset or Content Asset.. It may vary in depth from merely identifying the asset or information to populate an EPG to providing a complex index of different scenes in a movie or providing business rules detailing how the content may be displayed, copied or sold. Separate uses for metadata have originated from the studios, distribution networks (Cable, Satellite), down to the CPE (STBs, PVRs). Provider A Party responsible for allocating asset identifiers.
