Interactive digital TV and multimedia services from June 04th until 10th at... · Interactive...
Transcript of Interactive digital TV and multimedia services from June 04th until 10th at... · Interactive...
Interactive digital TV and multimedia Interactive digital TV and multimedia servicesservices
Dr. Matevž Pogačnik
Faculty of electrical engineering, University of Ljubljana
TEMPUS RICUM workshop 4. - 5. june 2012
Durres/Tirana Albania
OutlineOutline
� Current trends in multimedia services and ICT
� Technologies overview
� IPTV
� HBBTV
� Over-the-top TV
� User experience
� Conclusion
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CurrentCurrent trendstrends in ICTin ICT
� Broadband connections are available
� Fiksed and mobile
� No. of MM supported devices is growing rapidly
� 50 bilion until 2020
� 100 milion smart TVs until 2014
� Share of mobile devices is increasing
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MM MM servicesservices & & interactiveinteractive digitaldigital TVTV
� All kinds of services
� informational, entertainment, educational, social networks, sports, eHealth, municipality info,…
� Interactivity!
� Requires a return channel
� Allows for added value in service consumption
� Personalized data access and service consumption
� Inclusion of end users into LIVE shows (voting, quiz participation,…)
� Real time sports results
� Available on a number of platforms
� iOS & Android phones and tablets, “smart TV”, personal PCs
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television� Internet
Internet + televisionInternet + television
ITV ≠ TV + PC55
IPTVIPTV
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IPTV IPTV examplesexamples
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HighHigh--levellevel IPTV IPTV architecturearchitecture
� IPTV domain (ITU-T IPTV GSI)� Content Provider (CP)
� Content/rights Owner
� Service Provider (SP)
� Head-End
� DRM/CAS
� Content Processing/Serving
� Network Provider (NP)
� (Content) Delivery
� End-User – Consumer (EU)
� Home Network
� Terminal Equipment
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Standard Standard verticalvertical IPTV IPTV architecturearchitecture
� Environment
� Servers
� Encoders
� Players
� Network
� Terminals
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� Terminals
� STB
� Tablets
� PCs
� Mobiles
Omrežje IPOmrežje IP
ProtocolsProtocols used in IPTVused in IPTV� Live streaming
� multicastand protocols
� IGMP
� Content on demand � Komunikacija: aplikacija
(terminalna oprema) –večpredstavni strežnik
� Protokoli za prenos –
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� Protokoli za prenos –aplikacijski sloj
� kontrola seje
� RTSP
� SIP
� HTTP
� podatkov(audio, video)
� RTP/RTCP
� SRTP/SRTCP
� TCP/UDP
� HTTP/TCP
� Personalizirane storitve� UNICAST!
IP
TCP UDP
RTPRTCP
RTSP
Seja Video podatki
Aplikacija
kontrolaseje
podatki
Unicast Unicast vsvs. Multicast . Multicast deliverydelivery
� Unicast
� One stream to one client
� Multicast prenosni način
� Simultaneous streaming of one stream to a number of clients
Unicast Multicast
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Benefits and drawbacksBenefits and drawbacks
� IPTV can provide a high-quality experience
� High quality content over controlled network
� Many applications and services (VoD, interactive apps related to content)
� It’s expensive
� STBs are expensive
� Controlled network is limited to providers “domain”
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HBBTVHBBTV
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iTViTV -- examplesexamples
Specification of HbbTVSpecification of HbbTV
• ETSI TS 102 796 v1.1.1 (June 2010)
• HbbTV is openly available industrial standard
• Merging of two technologies (Germany, France)
• Standard made by HBBTV consortium
• www.hbbtv.org
• ANT, APS, Canal+, EBU, France Télévisions, IRT, OpenTV, Philips, Sony, SamsungSony, Samsung
• A combination of many standards
• First devices available in 2009 (Germany)
• Official certification should start shortly
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Devices with support for HbbTVDevices with support for HbbTV
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ArchitectureArchitecture
• Broadcast:
• Transmittion of TV, radio and data signals
• Signalling for “broadcast-related” apps
• Transfer of “broadcast-related” apps and data
• Sinchronisation of apps and TV/radio/data services
• Broadband:
• On-demand transfer
• Transfer of “broadcast-related” and “broadcast-independent” apps and corresponding data
• Data exchange between apps and servers
• This also includes OTT TV!
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ArchitectureArchitecture
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Over the top technologies for digital TVOver the top technologies for digital TV
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iTViTV -- examplesexamples
Apple TVApple TV
� Provides different types of content (OTT)
� iTunes
� Netflix
� Youtube
� Vimeo
� Sports: NBA, NHL, MLB
� Home MM content from other (iOS) devices
� …
� Excellent user experience
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Google TVGoogle TV
� Very similar to Apple TV (OTT)
� Enhanced suport to Web browsing
� Similar user experience?
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Good examples Good examples ☺☺☺☺☺☺☺☺
� Mediateka RTVSLO (smartTV, iOS, Android)
� Siol TViN (PC, iOS, Android)
� Voyo (smart TV, iOS, Amdroid)
� Telemach 3DGO (iOS)
� Vreme LTFE (smart TV)
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Distribution mechanismsDistribution mechanisms
� Adaptive streaming over HTTP protocol
� Apple HLS
� Adobe dynamic streaming for flash
� Microsoft smooth streaming
� DASH - Dynamic Adaptive Streaming over HTTP
� Content quality is adapted to network throughput� Content quality is adapted to network throughput
� Usage of CDN - content delivery networks
� Distributes the networking load gographically
� Open interfaces allow for access to service data
� Any kind of content data
� Protocols: REST, SOAP over HTTP
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PlatformsPlatforms overviewoverview
� iOS
� Android
� Symbian
� Windows mobile / Windows 7
� Blackberry
� Web based platforms
� Smart TVs (HBBTV)
� PCs
� Mobile browsers
� Set-top-boxes
� One of the above platforms ☺☺☺☺
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User experienceUser experience
� User interface (UI)
� HW UI (e.g. devices, remotes)
� SW UI (e.g. User interface)
� User interaction (HCI)
� User experience (QoE)
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User interface User interface -- remoteremote
� Very important element
� Key points
� Simple to use
� Only important functionality
� Other interaction modalities (voice commands, gestures, touch screen...)
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OK
�
POWER MUTE
TV/WEBHOME
ConclusionConclusion
� Many platforms - many services
� OTT seems to be growing fast
� OTT services are based on open platforms, but there are many platforms and versions
� Supporting many platforms seems to be a winning solution
Consequences� Consequences
� Operators are facing difficulties due to increasing traffic
� Users are benefitiaries
� User experience is very important!!!
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Thank you for your attention!Thank you for your attention!
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