HOW NEXT-GEN ENTERTAINMENT IS DELIVERED BY THE NET
How Internet TV
works? 
Ordinary television programmes today are broadcast from
videotape as analog UHF radio signal that is picked up by your by your TV
aerial. The system distributes the signal across whole country ,virtually
simultaneously, and according to a fixed schedule. Now When you use cool
Internet TV! You are the master of program view. You got all the freedom lika
Video-on-Demand(VOD),Catchup TV,if u wanna call uur friends yes! You can(video
telephony),gaming,and what more... eGovernanace. Cool isn't it? Now is the time
to check your written articles about 'Idiot Box' in your school dayz.
B@ck to Future!!!!!! :)
Alright` come to the point!
This technology is a system through which television
services are delivered to you sir! Using Internet Protocol suite over packet
switched network instead of being delivered through traditional
terrestrial,satellite 0r cable TV formats.(ab no more jhingalala!!)
Video-On-Demand
EnjoY! Browsing videos in
Your Living room
:*
Time_ShiftedTV
CatchupTV(Replays TV shows),start
Over again!! n more.....
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[LIVE] TV
If u wanna to interact in current show
Ammm...yes there is a way :)
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Triple Play Service :gives combined use of Broadband ,
telephony ,TV & cellular service in full play into your hands.
Designing Internet TV with your well-known communication protocols:
ñ [Live]TV
uses IGMP for connecting to multi-cast streams.
ñ VoD
uses UDP & Real Time Protocols for channel streams and control is done
via Real Time Steaming Protocols(RTSP).
Hey! Hey!
Hey! Why not using TCP/IP most popular Internet protocol rather using RTSP?
Aha *when you send something over the
internet, it split into little pieces called 'packets'.Each
packet is put in a sort of digital
envelope,using protocol called TCP/IP, (with
destination address + trick how to assemble at another end).Now these packets travel different
routes independently and eventually arrives in one piece,BUT ,It is terrible for streaming video. If u gotta minor hiccup in your
network, you probably don't mind too much if one or two frames
get dropped , but you gonna kill uur TV if entire programme
stops while your set top boxes requests the missing frame to be re-sent. To
get around this ,streaming video uses
Real Time Streaming
Protocols rather than TCP/IP, and buffers incoming data in its internal memory to cover minor delays.
ñ Video
content is compressed in MPEG-4 & MPEG- transport stream delivered via
IP multicast.
3GPP IP Multimedia
Stream
How it works? 
Programmes destined for streaming are first `digitized`
:P to a master file at the highest
possible quality.(after all Quality ka hi toh swal hai bhai!) .This is
compressed using algorithms(i just mentioned see ya!) that discard information
that doesn't change from one frame to next , or which doesn't contribute very
much to our lovable desired picture impression. Do you know Guyz! that our eyes
are less sensitive to blue wavelengths of light than red ones(VibgyoR),so vDeo
Steam uses fewer bits to encode blue channel than green and red. :(
Yea! I know you are not soo free to watch High Definition Shows at your
home..... but a programme might be compressed at several different resolutions
to allow for viewing on mobile phones as well as standard and high -definition
TVs.
When a video packet arrive in your living room or your
device ,they are recieved by set top box. This is a device with a network
connection ,processor, memory and a a graphics chip. Ever heard of AppleTV ,it
runs on iOS found in iPad & iPhone. Roku uses Linux. Video stream uses
DRM(Digital Right Management) to encrypt the data so that your order doesn't
reaches your neighbor and he relishes your tasty
content. (&Yes! DRM is a
technology that restricts your ability to transfer programmes into another edevices) .
Head To Head OnLINE TV services
4. iTunes store
The link with AppleTV set-top box & Huge rise in video on mobile phones has made iTunes Store about more than just music
3. BBC iPlayer
BBC iplayer generally allows programmes to be streamed .At any time, seven days after broadcast & some programs
mainly sports Are offered in simulcast format. But not Available outside UK :(
Cost:FREE
It combines content from major networks mLike Fox, NBC, Disney & MTV. Watch classic & current US shows.
Cost: FREE
Netflix begins as online DVD rental service, but
now allows subscribers to stream selection from its
catalogue via web & set top boxes.You name Movie & TV
show
Its here.
Cost:$6.99/month
1080p HD
Top 3 Facts about Internet
TV tech -More popular among youth in the west
1. Mobile Viewing
Usage of
this on mobile peaks after midnight, as teenagers sneakily watch under the covers. There's also a peak at the weekend , on Saturday & Sunday
morning.(8AM to 10AM).
2. Do you know that! BBC iplayer uses 60 servers
to encode its programmes for iplayer.
More than 400 hours of programmes are converted each week. The same iPlayer
shifts more than seven petabytes of traffic each month thats seven million
gigabytes ,or approx
7,000,000,000,000,000 bytes. That's a lot of bytes ! Ooolala.............
3. If your programme isn't available that's
because it was broadcasted [Live]. It takes about an hour to process the tape.
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How Do you find this article ,Do tell us!
Editedby:GgnK
www.trickeeg.blogspot.in/TECH_TOK
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