Feeds

WTF is... DLNA?

A cure for media playback blues - or will it just have you seeing red?

  • alert
  • submit to reddit

The Essential Guide to IT Transformation

How DLNA stacks up

Device Discovery
The network layer is based on IP, either wired or wireless, and compatible devices discover each other using SSDP (Simple Service discovery Protocol), a fundamental of UPnP. This allows devices to reveal their names to one another, along with information about the functions they are capable of performing.

Content Discovery
UPnP is used between the connected devices to establish lists of the multimedia files available based on their associated metadata. DLNA guidelines dictate the mandatory formats - which include MPEG 2 and AVC/H.264 for video, PCM and AAC for audio, and JPG for pictures. Other formats - MP3 and Flac, for instance - are optional and may not necessarily be accepted by some DLNA-compliant devices.

Content Transfer
The devices exchange “media format profile IDs” to reach agreement about which files can be served and played. Content that passes the test is piped through the Web protocol HTTP. Premium content may be tagged using DTCP-IP “link protection” to ensure copyright material stays within defined bounds.

DLNA stack structure

Boost IT visibility and business value

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.