1. An Overview of the DLNA Architecture
Edwin Heredia
Program Manager
Windows Devices & Media

2. Introduction to DLNA Industry consortium
250+ companies
Consumer Electronics
Computing Industry
Mobile Devices
Content distributors
Goal: Establish an ecosystem of compatible products for networked media devices
Develops standards-based specifications: “DLNA Guidelines”
Promoters

3. DLNA versions Version 1.0 Expanded Guidelines (commonly known as V1.5)
Guidelines published in 2005
Cert program available in 2006
2000+ certified devices
Expanded Guidelines (commonly known as V1.5)
Guidelines published in Oct 2006
Partial cert program started in Q4 of 2007
Additional cert options available in Q3 of 2008
60+ certified devices
Additional Expanded Guidelines (commonly known as V2.0)
Ongoing work towards publication of additional Guidelines

4. Scope of DLNA versions Version 1.0 Version 1.5 Version 2.0
2 volumes: Architecture & Protocols, Media Formats
2 Device Classes: DMP, DMS
About 50 media format profiles
Version 1.5
3 volumes: Architecture & Protocols, Media Formats, and Link Protection
12 Devices Classes and 5 Device Capabilities
About 250 media format profiles
Version 2.0
Not yet finalized; includes topics like EPG, Content Sync, RUI, WPS, Media Formats, Scheduled recording, DRM

5. UPnP Device Architecture
Devices
Controllers
NOTIFY messages (presence announcements)
SSDP
Discovery
M-SEARCH messages (device/service search)
SSDP
GET device & service description
Description
XML
UPnP Actions
SOAP
Control
Event subscriptions
GENA
Events
Event notifications
GENA

6. UPnP Media Devices Controllers Devices UPnP MediaServer MediaServer CP
UPnP Control Point
UPnP MediaServer
MediaServer CP
UPnP MediaRenderer
MediaRenderer CP

7. DLNA 2-Box Models 2. Select content 1. Get Media Library info
2-box pull
3. Get Content stream
1. Get Media Library info
and select content
2-box push
2. Pass URI for selected content
3. Get Content binary stream

8. DLNA 3-Box Model 2. Select content 1. Get Media Library info
3. Pass URI & metadata for
selected content
4. Get Content binary stream

9. Device Classes & Capabilities
A Device Class is a “certifiable unit”
Company X implements a Device Class and goes to DLNA requesting certification
A Device Capability is an “interesting component” that can be added to some Device Classes for increased functionality
DLNA does not certify Device Capabilities

10. Device Classes Category: Home Networked Devices (HND)
Category: Mobile Handheld Devices (MHD)
Digital Media Server (DMS)
Mobile Digital Media Server (M-DMS)
Digital Media Player (DMP)
Mobile Digital Media Player (M-DMP)
Digital Media Renderer (DMR)
Digital Media Controller (DMC)
Mobile Digital Media Controller (M-DMC)
Digital Media Printer (DMPr)
Mobile Digital Media Uploader (M-DMU)
Mobile Digital Media Downloader (M-DMD)
Category: Networked Infrastructure Devices (NID)
Media Interoperability Unit (MIU)
Mobile Network Connectivity Function (M-NCF)

11. Device Capabilities Interacts with… Upload Controller (+UP+)
DMS with upload support
Download Controller (+DN+)
DMS with download support
Push Controller (+PU+)
DMR
Printing Controller 1 (+PR1+)
DMPr
Printing Controller 2 (+PR2+)
DMPr

12. DLNA 2-Box Models Revisited
2. Select
content
1. Get Media Library info
2-box pull
3. Get Content stream
DMP
DMS
1. Get Media Library info
and select content
2-box push
2. Pass URI for selected content
DMR
+PU+ with
Device Class
3. Get Content binary stream

13. DLNA 3-Box Model Revisited
2. Select
content
1. Get Media Library info
DMC
3. Pass URI & metadata for
selected content
DMS
4. Get Content binary stream
DMR

14. DMPs and DMRs DMP DMR and DMP DMR
Phy Layer
TCP/IP
HTTP
UPnP MR
Media Decoding
UPnP MSCP
UPnP MRCP
DMR
DMP
DMR and DMP
DMCs, M-DMCs, DMPs derive from the UPnP Controller class
UPnP Controllers do not implement Device Discovery . They cannot be discovered
via UPnP protocols. They can be discovered only at lower layers (TCP/IP)
WMP11 for example discovers a DMP’s MAC address but it does not know its name, manufacturer, and cannot present an icon (the DMP shows as ‘unknown device’)
A dual DMP/DMR device provides the best of both usage scenarios (push and pull)

15. Media Formats
The term “Format” is equivalent to “codec” or “codec family”
List of DLNA-approved formats:
Video
MPEG-1
MPEG-2
H.263
MPEG-4 Part 2
MPEG-4 Part 10
WMV9
VC-1
LPCM
MPEG-1/2 L2
MPEG-1/2 L3
MPEG-4 AAC LC
MPEG-4 AAC LTP
MPEG-4 HE AAC
MPEH-4 BSAC
Audio
AC-3
ATRAC3plus
WMA
WMA Professional
AMR
AMR-WB+
G.726
JPEG
PNG
GIF
TIFF
Images

16. Media Format Profiles
The term “Profile” represents a combination of encoding formats used to create media objects
Examples:
MPEG_PS_NTSC
Video: MPEG-2 (NTSC constraints)
Audio: Encoded using either AC-3, LPCM, or MPEG 1/2 L2
System: Program Streams
Other constraints: Follows DVD-RW specifications
WMVHIGH_FULL
Video: WMV Main Profile at High Level
Audio: WMA using full bit rate (385 Kbps)
Encapsulation: ASF

17. Media Format Interoperability
DLNA has defined so far more than 350 profiles!
Obviously, devices can’t support 350 profiles. The word “support” here means:
Servers have to expose the object with its Profile ID and stream its content
Receivers (DMRs, DMPs) have to decode and render the object
Consequently DLNA defines Required Profiles depending on:
The Media Class (Images, Audio, Audiovisual)
The Device Category (Home, Mobile)
The Geographical Region (US, EU, Japan, Korea)

18. DLNA Required Profiles
Image
Audio
A/V
Home (HND)
JPEG_SM
LPCM
See next slide
Mobile
(MHD)
Server must expose content with at least ONE of these profiles:
Receivers must decode and render content inALL of these profiles:
AAC_ISO_320
MP3
AVC_MP4_BL_CIF15_AAC_520
For certification devices select the Home, Mobile or both categories
For certification devices select the Image, Audio, A/V, or any combinations

19. Required A/V Profiles (HND)
Servers must be capable of exposing content with at least ONE of these profiles
Receivers must decode and render content in ALL of these profiles US
MPEG_TS_SD_NA , MPEG_TS_SD_NA_T , MPEG_TS_SD_NA_ISO, MPEG_PS_NTSC
Japan
MPEG_TS_JP_T , MPEG_PS_NTSC
Europe
MPEG_TS_SD_EU, MPEG_TS_SD_EU_T, MPEG_TS_SD_EU_ISO, MPEG_PS_PAL
Korea
MPEG_TS_SD_KO, MPEG_TS_SD_KO_T , MPEG_TS_SD_KO_ISO, MPEG_PS_NTSC
For certification devices select one or more regions

20. Windows Media Profiles
DLNA Profile ID
Audio
Video
WMVMED_BASE
WMA; bit rate < 193 Kbps
WMV Main Medium Level
WMVMED_FULL
WMA; full bit rate (385 Kbps)
WMVHIGH_FULL
WMV Main High Level
WMVSPLL_BASE
WMV Simple Low Level
WMVSPML_BASE
WMV Simple Medium Level
WMABASE
N/A
WMAFULL
There are other WMA, WMV, and VC-1 profiles in DLNA but the ones listed here constitute the fundamental core for Windows Networking Media Devices

21. Next In the next session we will cover: Thanks!
Implementation details of DMS, DMR, DMC
The DLNA device certification process
Thanks!

22. 3/31/2017 2:51 PM
© 2006 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.
© 2006 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.