An Introduction to the DLNA Architecture

Preface xvii
Acknowledgments xxi
Acronyms xxiii
1. Introduction 1
1.2 Networks of Media Devices 1
1.2 Ubiquitous Computing at Home 3
1.3 Home Networking Challenges 5
1.4 Protocols for Networks of Media Devices 6
1.5 Protocol Development 6
2. Scenarios and Models 11
2.1 Usage Scenarios 11
2.2 Control Models 16
2.3 Media Characterization 21
3. Device Classification 25
3.1 UPnP Devices and Control Points 25
3.2 UPnP Media Servers and Media Renderers 26
3.3 Device Taxonomy 29
3.4 Device Classes and Capabilities 30
3.5 Device Nomenclature 41
4. Network Connectivity 43
4.1 Physical and Link Layers 43
4.2 TCP/IP Protocols 44
4.3 IP Addressing 51
4.4 DHCP 53
4.5 Auto-IP 56
5. Discovery Protocols 59
5.1 Root and Embedded Devices 59
5.2 Discovery Messages 60
5.3 Presence Advertisements (SSDP Alive Messages) 63
5.4 Number and Types of Presence Advertisements 66
5.5 Exit Advertisements (SSDP Bye-Bye Messages 67
5.6 Discovery Search Requests (M-SEARCH Requests) 68
5.7 Discovery Search Responses (M-SEARCH Responses) 70
6. Description Protocols 73
6.1 Device Description Document (DDD) 73
6.2 Service Description Document (SDD) 83
7. Server Control Protocols 91
71. The DMS Content Directory Service 92
7.2 The DMS Connection Manager Service 139
8. Renderer Control Protocols 147
8.1 Usage Model 147
8.2 Discovery of Content and Devices 150
8.3 The Connection Manager Service in a DMR 150
8.4 The AV Transport Service in a DMR 156
8.5 The Rendering Control Service in a DMR 182
8.6 Multiple Controllers in the Network 190
9. Exchange Protocols for Actions and Events 193
9.1 Control and Event URLs 193
9.2 Exchange Protocols for Actions 195
9.3 Exchange Protocols for Events 201
10. HTTP Media Streaming 209
10.1 HTTP Servers and Clients 210
10.2 Transfer Modes 211
10.3 HTTP Methods 223
10.4 HTTP Versions 226
10.5 Relevant HTTP Headers 227
11. Media Control Experience 241
11.1 Navigation Operations 243
11.2 Playback Operations 250
12. Digital Media Requirements 269
12.1 Media Formats and Profiles 270
12.2 Proliferation of Media Format Profiles 271
12.3 Exposing Content in a CDS 273
12.4 MIME Types 274
12.5 The Profile ID 275
12.6 Media Interoperability 276
12.7 Mandatory Profiles for the HND Category 279
12.9 Summary of DLNA Media Requirements 280
13. Media Format Profiles 281
13.1 Image Class: JPEG Content 281
13.2 Audio Class: AAC Content 283
13.3 Audio Class: LPCM Content 285
13.4 Audio Class: MP3 Content 286
13.5 Audio Class: WMA Content 287
13.6 A/V Class: AVC Content 289
13.7 A/V Class: MPEG-2 PS Content 290
13.8 A/V Class: MPEG-2 TS Content 293
13.9 A/V Class: WMV Content 301
13.10 MP4 Files 303
13.11 Profiles for Link Protection 303
13.12 Assignment of Profile IDs 304
14. AVT Actions and State Variables 307
14.1 AVT Actions 307
14.2 AVT State Variables 320
15. CDS Actions and State Variables 331
15.1 CDS Actions 331
15.2 CDS State Variables 339
16. CMS Actions and State Variables 341
16.1 CMS Actions 341
16.2 CMS State Variables 344
17. RCS Actions and State Variables 347
17.1 RCS Actions 347
17.2 RCS State Variables 355
Appendix A: Error Codes 359
Appendix B: Size Limits in Data Structures 363
Glossary 365
References 371
Index 379