IPTV Content on Demand Service
|Publication Date:||1 March 2012|
This specification defines IPTV CoD Service operation after the initialization, configuration, service provider discovery, and services discovery documented in ATIS-0800017, Network Attachment and Initialization of Devices and Client Discovery of IPTV Services , and ATIS-0800009, Remote Management of Devices in the Consumer Domain for IPTV Services . Note that those specifications may enable an IPTV Terminal Function (ITF) to access additional IPTV services beyond the IPTV CoD Service described in this specification. This specification assumes that the ITF is authorized to access one or more service packages. Mechanisms to restrict or modify the set of available authorized service packages are out of scope of this specification; refer to ATIS- 0800020, IPTV Electronic Program Guide (EPG) Metadata Specification .
The IPTV CoD Service delivers content that may be either secured or unsecured. Where content encryption is required to ensure confidentiality of the content and constrain its further usage or distribution, appropriate Digital Rights Management (DRM) mechanisms are to be used. These mechanisms are out of the scope of this specification.
This specification provides architecture, protocols, and use cases for the CoD Service. The content to be distributed on demand is restricted to be delivered over a unicast transport to the ITF. The content may be sourced either within the service provider network or external to the service provider network. When externally sourced, it is referred to as Internet-sourced content. In addition, content may be delivered to the ITF via either a managed network or an unmanaged network (e.g., a 3rd Party Content Delivery Network [CDN]). Multicast or broadcast IP service infrastructures are considered out of scope for CoD service delivery to the ITF in this specification.
This standard addresses content in multiple streaming formats and protocols delivered to multiple device types implementing the ITF. It also includes capabilities for nomadic service access by the ITF at multiple locations. This specification is agnostic of infrastructures below the IP layer.
The purpose of this document is to describe the use of the relevant functions identified in ATIS-0800007, IPTV High Level Architecture, for delivery of an IPTV Content on Demand (CoD) Service. An instance of an IPTV CoD Service may be configured to provide a consumer experience similar to that of traditional Video on Demand (VoD) television services, but additionally provides access to the potentially greater functionality also available through capabilities of the IPTV infrastructure.