ISO/IEC 29341-14-3:2011 PDF

Overview

ISO/IEC 29341-14-3:2011 specifies the UPnP Audio/Video Device Control Protocol Level 3 for a MediaServer device. Aligned with the UPnP Device Architecture v1.0, this standard defines a general-purpose MediaServer that exposes AV content on a home network via the ContentDirectory service. The MediaServer may also support scheduled recording through the ScheduledRecording service. It is format- and protocol-agnostic: any media type, data format, or transfer protocol can be handled as long as the ContentDirectory and related services expose and negotiate access.

Key topics and technical requirements

• Device model and discovery
  • Defines a MediaServer device type, its services and relationships.
  • Operates within the UPnP discovery and description mechanisms to advertise content on the home network.
• Content exposure and metadata
  • Content is exposed through the ContentDirectory service (see ContentDirectory service specification for details).
  • Supports enumeration, query and search operations on available media.
• Transfer negotiation and control
  • Clients and servers negotiate transfer protocols and data formats to enable content transfer.
  • MediaServer supports content flow control (playback operations such as fast-forward, rewind, etc.).
• Recording and import
  • MAY provide recording functionality via the ScheduledRecording service and can import/copy content from other devices.
• Protocol, data and representation rules
  • Uses UPnP and XML Schema data types; boolean representations and escaping rules are specified.
  • Formal syntax uses EBNF for certain constructs; CSV conventions and XML namespace/versioning rules are covered.
• Conformance language
  • Requirement keywords follow RFC 2119 (MUST, SHOULD, MAY, etc.), establishing mandatory vs optional behaviors.
• Lightweight footprint
  • The specification is intentionally lightweight so it can be implemented on low-resource devices as well as high-capacity Home MediaServers.

Practical applications

• Implementers building networked media devices that share AV content on a home network:
  • Traditional CE devices (DVD players, set-top boxes, camcorders)
  • Digital servers (MP3 servers, PVRs, PC-based Home MediaServers)
• System integrators and firmware engineers creating UPnP-compliant MediaServer products to ensure interoperability with UPnP AV clients.
• Manufacturers who want consistent exposure of heterogeneous media collections using a standardized ContentDirectory interface.

Related standards

• UPnP Device Architecture v1.0 (base UPnP framework)
• UPnP AV Architecture Framework (architectural context)
• ContentDirectory service specification (content listing, search, metadata)
• ScheduledRecording service specification (optional recording features)

Keywords: ISO/IEC 29341-14-3:2011, UPnP MediaServer, UPnP AV, ContentDirectory service, ScheduledRecording, media server device, home network, device discovery, transfer negotiation.