1. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Development Directions of IPTV Platform

2. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Outline General Overview of IPTV Hardware and Transport Network Requirements  Video Service Requirements  Access Network Requirements – Solutions  Necessary Changes in Service Provider’s Infrastructure Protocols in IPTV  IGMP  RTSP  Example - RTSP with UDP-Based RTP Delivery Devices on Service Provider’s Side Devices on Subscriber’s Side – Set-Top Box Sample IPTV Solution Conclusions

3. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 What is IPTV Digital transmission based on TCP/IP protocol suite. Use only access networks. Don’t use internet links. Watched on TV set with set-top-box or on computer screen. Interactive Can be integrated with other services like Video on Demand, Voice over IP, Personal Video Recorder Digital video quality. With higher bandwidth networks can be HDTV

4. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Video Service Requirements High Bandwidth Asymmetric Bandwidth Quality of Service Service Availability

5. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Video Service Requirements cont. Access Network Requirements – Solutions  ADSL2, ADSL2plus  FTTU/FTTH, FTTC Transport Infrastructure – Performance Requirements

6. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Protocols in IPTV - IGMP IGMP is abbreviation for Internet Group Management Protocol IGMP version 2 is one of the primary underlying protocols used for IPTV Used for channel change signaling for live TV The communications protocol used to manage the membership of Internet Protocol multicast groups IGMP is used by IP hosts and adjacent multicast routers to establish multicast group memberships. It is an integral part of the IP multicast specification, like ICMP for unicast connections.

7. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 RTSP Used for VoD services The Real Time Streaming Protocol (RTSP) is a protocol for use in streaming media systems which allows a client to remotely control a streaming media server, issuing VCR-like commands such as "play" and "pause", and allowing time- based access to files on a server RTSP requests are based on HTTP requests In RTSP we can distinguish following requests: DESCRIBE, SETUP, PLAY, PAUSE, RECORD, TEARDOWN. A number of typical HTTP requests, like an OPTION request are also frequently used RTSP servers use RTP among other things the transport protocol for the actual audio/video data

8. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Example—RTSP with UDP-Based RTP Delivery OPTIONS RTSP/1.0 200 OK DESCRIBE RTSP/1.0 200 OK SETUP RTSP/1.0 200 OK PLAY RTSP/1.0 200 OK RTP/RTCP Initiated TEARDOWN RTSP/1.0 200 OK

9. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Devices on Service Provider’s Side Super Headend Video Headend Office Video Switching Office VoD Server

10. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 IPTV/Video over Broadband Transport Architecture: Detailed view

11. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Set-top-box Hardware and common software infrastructure component that is used by the on-demand and broadcast clients as well as by the video decryptor and the video decoder. The STB hardware typically consists of a general-purpose processor and video subsystem that produces an analog television output. The hardware may also include a hardware-based decoder and decryption subsystem The STB software typically includes an embedded operating system, and may also include application infrastructure components such as a web browser. Nowadays IP-STB are small computers based on Linux or Windows operating systems with implemented TCP/IP protocol stack and pack of audio and video codec.

12. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Set-top-box – hardware architecture

13. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Set-top-box – software architecture Hardware drivers and media codec Operating system and network stack IPTV Client TV browser Various plugins

14. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Operation of set-top box User wants to watch TV channel IP-STB connects to appropriate multicast group IP-STB recieves packets and encodes it IP-STB recieves packets, encodes it and sends to output device User watches TV channel

15. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Set-top-box – additional functions Multimedia Program Guide - a unified user experience with integrated listings for broadcast and on-demand content, consistent navigation and search features, and picture- in-picture. Mini Guide - a convenient way to browse guide listings without interrupting the show currently airing. Discretely displayed along the bottom of the screen, the Mini Guide shows comprehensive program information plus a real-time video stream for each show currently airing. Consumers can browse listings by shows currently airing, shows on next, and shows airing later. Fast Channel Surfing enables channel changing in a fraction of a second, effectively eliminating the delay associated with tuning channels in a digital system Integrated Video-On-Demand (VOD) - All content - including HDTV - can be distributed on a subscription or a pay-per-play basis with content promotion integrated into the user experience. Digital Video Recording - With an internal or external hard disk drive, customers can pause, fast-forward, and rewind live and recorded content. With IPTV Edition, multiple recordings can be made without the need for multiple tuners, so there is no need for costly hardware upgrades. Connected Devices and Media - Provide simple, encrypted access from consumers' TVs to photos, music, and video located anywhere on a home network. Enable consumers to review and record TV programming remotely via the Internet.

16. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Cisco Gigabit-Ethernet Optimized IPTV/Video over Broadband (GOVoBB) Cisco 7609VOD server Cisco 6500 IP DSLAM

17. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Conclusions Higher and higher bandwidth in access networks No new expenditures in infrastructure Integrated TV, VoIP and internet access Interactive entertainment

18. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Putting IPTV into practice in Western Europe

19. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Thank You Very Much

20. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 IPTV service server entity model Terminal CDN Structure Info Server Access Network CDN CDN Structure Information PF Structure Information Metadata Interactive Page License VOD Streaming Download Content IPTV Service Stream Service Provider Platform Provider PF Structure Info Server Metadata Server CAS/DRM Server Backend Server Portal Server Content Server (VOD Streaming) Content Server (Download) IP Broadcasting (Streaming Server)

21. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Playback-only CPE configuration model Streaming Communication Process Demax AV Decoder Content Access Control Decrypter AV Output Browser Broadband IGMP/MLD IP Physical Data link FEC Buffering Broadcast Satellite/Terrestrial Broadcast Receiver Storage Device UDP RTP TCP RTSP HTTP/TLS Streaming Communication Process Demax AV Decoder Content Access Control Decrypter AV Output Browser Broadband IGMP/MLD IP Physical Data link FEC Buffering Satellite/Terrestrial Broadcast Receiver Storage Device UDP RTP TCP RTSP HTTP/TLS TCP RTSP HTTP/TLS Broadcast

22. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 IPTV service server entity model Terminal CDN Structure Info Server Access Network CDN CDN Structure Information PF Structure Information Metadata Interactive Page License VOD Streaming Download Content IPTV Service Stream Service Provider Platform Provider PF Structure Info Server Metadata Server CAS/DRM Server Backend Server Portal Server Content Server (VOD Streaming) Content Server (Download) IP Broadcasting (Streaming Server)

23. Dariusz Broncel, Łukasz Dewera Systemy Multimedialne 2006 Playback-only CPE configuration model Streaming Communication Process Demax AV Decoder Content Access Control Decrypter AV Output Browser Broadband IGMP/MLD IP Physical Data link FEC Buffering Broadcast Satellite/Terrestrial Broadcast Receiver Storage Device UDP RTP TCP RTSP HTTP/TLS Streaming Communication Process Demax AV Decoder Content Access Control Decrypter AV Output Browser Broadband IGMP/MLD IP Physical Data link FEC Buffering Satellite/Terrestrial Broadcast Receiver Storage Device UDP RTP TCP RTSP HTTP/TLS TCP RTSP HTTP/TLS Broadcast