Digital Living Network Alliance

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Digital Living Network Alliance
Dlna.svg
EstablishedJune 2003 (2003-06)[1]
Founder(s)Sony
TypeNonprofit collaborative trade organization
HeadquartersLake Oswego, Oregon USA
Membership225[2]
Websitedlna.org
 
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Digital Living Network Alliance
Dlna.svg
EstablishedJune 2003 (2003-06)[1]
Founder(s)Sony
TypeNonprofit collaborative trade organization
HeadquartersLake Oswego, Oregon USA
Membership225[2]
Websitedlna.org

The Digital Living Network Alliance (DLNA) is a nonprofit collaborative trade organization established by Sony in June 2003, that is responsible for defining interoperability guidelines to enable sharing of digital media between multimedia devices.[3] These guidelines are built upon existing public standards, but the guidelines themselves are private (available for a fee). These guidelines specify a set of restricted ways of using the standards to achieve interoperability and include almost no free audio formats and only the most common (free or otherwise) video formats, meaning that DLNA servers generally have to support transcoding in order to produce a useful service.[4]

DLNA uses Universal Plug and Play (UPnP) for media management, discovery and control.[5] UPnP defines the type of device that DLNA supports ("server", "renderer", "controller") and the mechanisms for accessing media over a network. The DLNA guidelines then apply a layer of restrictions over the types of media file format, encodings and resolutions that a device must support.

As of February 2013,[6] over 18,000 different device models have obtained "DLNA Certified" status, indicated by a logo on their packaging and confirming their interoperability with other devices.[7] It was estimated that by 2010 more than 440 million DLNA-certified devices, from digital cameras to game consoles and TVs, were installed in users' homes.[8]

History[edit]

Sony established the DLNA in June 2003 as the Digital Home Working Group, changing its name 12 months later, when the first set of guidelines for DLNA was published.[1] Home Networked Device Interoperability Guidelines v1.5 was published in March 2006 and expanded in October of the same year; the changes included the addition of two new product categories — printers, and mobile devices — as well as an "increase of DLNA Device Classes from two to twelve" and an increase in supported user scenarios related to the new product categories.[1]

Specification[edit]

The DLNA Certified Device Classes are separated as follows:[9]

Home Network Devices[edit]

Mobile Handheld Devices[edit]

Home Infrastructure Devices[edit]

The specification uses Digital Transmission Content Protection|DTCP-IP as "link protection" for copyright-protected commercial content between one device to another.[1][10]

Member companies[edit]

As of February 2014, there are 17 promoter members and 215 contributor members. The promoter members are:[11]

ACCESS, Arris, Awox [12], Broadcom, CableLabs, Comcast, Dolby Laboratories, DTS, Intel, LG Electronics, Microsoft, Nokia, Panasonic, Samsung Electronics, Sony Electronics, Time Warner Cable, and Verizon.

Apple is not a member. Apple uses its own proprietary Digital Audio Access Protocol instead of DLNA's UPnP protocols.

DLNA is run by a board of directors consisting of 9 members. There are 8 permanent representatives from the following companies: Broadcom, Intel, Microsoft, Nokia, Samsung Electronics, Sony Electronics, CableLabs, AwoX [12] and one elected by the promoter members.[13]

The board of directors oversees the activity of the four following committees:

Products supporting DLNA[edit]

DLNA-certified devices[edit]

There are over nine thousand products on the market that are DLNA Certified.[14] This includes TVs, DVD and Blu-ray players, games consoles, digital media players, photo frames, cameras, NAS devices, PCs, mobile handsets, and more.[15] “According to a study from ABI Research, nearly 200 million such products shipped in 2008; that number will rise to more than 300 million in 2012, and the growth curve accelerates even faster in the years that follow.”[16] Consumers can see if their product is certified by looking for a DLNA logo on the device or by verifying certification through the DLNA Product Search.[17]

Manufacturers can seek certification testing from a DLNA Accredited Independent Certification Vendor such as the UNH InterOperabiliy Laboratory,[18] Digital TV Labs,[19] or Testronic.[20]

DLNA technology components[edit]

As the past president of DLNA pointed out to the Register in March 2009:[21]

The vendors of software are allowed to claim that their software is a DLNA Technology Component if the software has gone through certification testing on a device and the device has been granted DLNA Certification. DLNA Technology Components are not marketed to the consumer but only to industry.

DLNA Interoperability Guidelines allow manufacturers to participate in the growing marketplace of networked devices and are separated into the below sections of key technology components.[22]

DLNA-certified software[edit]

In 2005,[29] DLNA began a Software Certification program in order to make it easier for consumers to share their digital media across a broader range of products. DLNA is certifying software that is sold directly to consumers through retailers, websites and mobile application stores. With DLNA Certified software, consumers can upgrade products from within their home networks that may not be DLNA Certified and bring them into their personal DLNA ecosystems. This helps in bringing content such as videos, photos and music stored on DLNA Certified devices to a larger selection of consumer electronics, mobile and PC products.[30]

DLNA-certified products[edit]

Some examples:[31]

  • AwoX mediaCTRL[32] is a commercial server. It is based on AwoX DLNA Technology component software development kits.[33]
  • CyberLink SoftDMA 2.[34] Appears to be just a DMP.
  • Nokia N9 shares multimedia including music, pictures or videos.
  • Samsung Galaxy S II shares multimedia including music, pictures or videos.
  • Samsung Galaxy S III mini shares multimedia including music, pictures or videos.
  • Samsung Galaxy S IV mini shares multimedia including music, pictures or videos.
  • Sony Xperia acro S shares multimedia including music, pictures or videos.
  • Nero MediaHome 4 a commercial media server for Windows with realtime transcoding and live TV streaming functionality. Free trial version is available.
  • Sony PlayStation 3[35] is a DLNA Certified[36] DMP.

Servers[edit]

See also[edit]

References[edit]

  1. ^ a b c d "Frequently Asked Questions", About, DLNA, retrieved 2010-01-22 .
  2. ^ "Member Companies". About. DLNA. Retrieved 2011-03-02. 
  3. ^ DLNA: what it is and what you need to know, Techradar 
  4. ^ "Why do I hate DLNA protocol so much", GX Ben, Word press, 2008-08-24 .
  5. ^ "DLNA for HD Video Streaming in Home Networking Environments" (PDF). DLNA.  Unknown parameter |\ archiveurl= ignored (help)
  6. ^ "Installed base of DLNA devices exceeds 440mn". IPTV news. 2008-09-25. Retrieved 2011-03-02. 
  7. ^ "The DLNA Certified Logo Program". Sony. Retrieved 2011-03-02. 
  8. ^ "440 million DLNA-certified devices installed in 2010 says ABI". EE herald. 2011-01-25. Retrieved 2011-03-02. 
  9. ^ "Certified® Device Classes". DLNA. Archived from the original on 2010-12-22. Retrieved 2011-03-02. 
  10. ^ "Whitepaper" (PDF), About us, DLNA, p. 4, retrieved 2011-03-02 
  11. ^ "Member Companies". 
  12. ^ a b "AwoX". 
  13. ^ Board of Directors of DLNA
  14. ^ "DLNA Empowers the Connected Consumer", Connected World magazine, 2011-01-14, retrieved 2011-03-02 
  15. ^ "UPnP and DLNA—Standardizing the Networked Home". Instat. Retrieved 2011-03-02. 
  16. ^ "More than 300 Million DLNA-Certified Consumer Electronics Devices to Ship in 2012 | Press Release" (press release). ABI Research. Retrieved 2011-03-02. 
  17. ^ Products, DLNA .
  18. ^ UNH InterOperability Lab .
  19. ^ Digital TV labs .
  20. ^ Testronic .
  21. ^ "IO Mega not DLNA compliant", The register (UK), 2009-03-02 .
  22. ^ "The DLNA Networked Device Interoperability Guidelines". DLNA. Retrieved 2011-03-02. 
  23. ^ "Network and Connectivity". DLNA. Retrieved 2011-03-02. 
  24. ^ "Device and Service Discovery and Control". DLNA. Retrieved 2011-03-02. 
  25. ^ "Media Format and Transport Model". DLNA. Retrieved 2011-03-02. 
  26. ^ "Media Management, Distribution, and Control". DLNA. Retrieved 2011-03-02. 
  27. ^ "Digital Rights Management and Content Protection". DLNA. Retrieved 2011-03-02. 
  28. ^ "Manageability". DLNA. Retrieved 2011-03-02. 
  29. ^ "DLNA Certification Program". 
  30. ^ "Increasing DLNA Software Certification Will Propel the Adoption and Connection of Devices within the Home Network" (press release). ABI research. 
  31. ^ Certified Products (search), DLNA .
  32. ^ Remote. "mediaCTRL pour PC". Awox. Retrieved 2013-03-12. 
  33. ^ "Network Media Solutions – OEM/ODM Modules and Embedded Technologies for the Digital Home". Awox. Retrieved 2011-03-02. 
  34. ^ "SoftDMA 2 – Media Player for the Digital Home". Cyberlink. Retrieved 2011-03-02. 
  35. ^ "Connect DLNA", Playstation 3, Sony .
  36. ^ PS (search), DLNA .
  37. ^ "Media Server 2 – Media Server Software for the Digital Home". Cyberlink. Retrieved 2011-03-02. 
  38. ^ "Jamcast" (home page). SDS technologies. 2010-11-23. Retrieved 2011-03-02. 
  39. ^ "JRiver Media Center" (home page). JRiverr. 2013-08-02. Retrieved 2013-83-02. 
  40. ^ Conceiva. "The Ultimate DLNA Home Entertainment Software". Mezzmo. Retrieved 2011-03-02. 
  41. ^ "PlayOn Digital Media Server". PlayOn. Retrieved 2011-03-02. 
  42. ^ "PS3 media server". Code (project hosting). Google. Retrieved 2011-03-02. 
  43. ^ Serviio .
  44. ^ http://subsonic.org
  45. ^ "TV mobili". Retrieved 2011-03-02. 
  46. ^ "Home". TVersity. 2007-06-17. Retrieved 2011-03-02. 
  47. ^ "Supported Devices". TVersity. Retrieved 2011-03-02. 
  48. ^ "Wild Media Server (UPnP, DLNA, HTTP)". .
  49. ^ "AllShare download". Samsung. Retrieved 2012-01-30. 
  50. ^ "KooRaRoo Media". Programming Sunrise. Retrieved 2012-07-04. 
  51. ^ "DMS", Play, Google .
  52. ^ Nero Media Home, retrieved 2014-01-12 

External links[edit]