Introducing TV Anytime Phase 1
Ronald TolTechnology Manager, Philips Digital System LaboratoriesConvenor TVAF STC Working Group
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Overview
• Background• TVA Metadata• TVA Content referencing• TVA example applications• Industry adoption
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Philips Research activities related to TVA
• 1995 SMASH– basic HD recording
• 1998 STORit– getting the right programmes – TV Anytime concept, standardization in DAVIC
• 2000 myTV– interoperable TVA solution for DVB– standardization: TVAF, DVB, IETF, W3C, MPEG
• 2001 Share it!– personal content sharing in home-to-home networks
TV-Anytime functionality
“Watch what you want, when you want”
• Simpler ways for the consumer to acquireTV content on local storage– click on EPG, trailer, website
• groups > programmes > segments
– series, related material– news items, parts of programmes
• Personalisation and automatic recording
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TVA Metadata
• Assists the consumer in selecting content• Supports creation and use of user profiles
• TVA metadata includes– Programme information, Segmentation information– Related material information– Purchase information– User profiles, Usage history
• TVA metadata uses a CRID to refer to content
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Why standardised metadata?
• Standardised metadata allows – authoring once for many destinations– metadata authoring tools that can be supplied
to many different customers– editing of metadata that has come from many
sources– economy of scale for broadcasters &
manufacturers
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Content Referencing
• The CRID (Content Reference Identifier) allows for location independent referencing of content
• It is assigned by an authority which also has the ability to resolve the CRID to a location
• A CRID points to a single piece of content or a series of other CRIDs
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Why do we need Content Referencing?
• The same metadata can be used for content regardless of where and when it is broadcast
• To reference groups of programmes such as an entire series
• References can be given before time & channel has been decided
• References work even if there is a change to the scheduled transmission time
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CRID – definition
Format of authority:
CRID:// <authority> / <data>
DNS name
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<GroupInformation GroupId="crid://hbc.com/foxes/all" GroupType="show" Ordered="true" NumberOfItems="2"> <BasicDescription> <Title type="main">All episodes of Foxes ever</Title> <Synopsis Length="short">More Foxes than you can handle</Synopsis> </BasicDescription><MemberOf>crid://hbc.com/comedy/all</MemberOf></GroupInformation>
<ProgramInformation ProgramId="crid://hbc.com/foxes/episode1"> <BasicDescription> <Title type="main"> The one where Fox jumps in the Potomac </Title> <Synopsis Length="short"> Fox goes to Washington and jumps in the Potomac </Synopsis> </BasicDescription><MemberOf>crid://hbc.com/foxes/all</MemberOf></ProgramInformation>
<ProgramInformation ProgramId="crid://hbc.com/foxes/episode2"> <BasicDescription> <Title type="main"> The one where Fox drowns in the Lake of Geneva </Title> <Synopsis Length="short"> Fox goes to Geneva and tries to climb the fountain </Synopsis> </BasicDescription><MemberOf>crid://hbc.com/foxes/all</MemberOf></ProgramInformation>
CRIDCRID
CRID
Group information Program information
CRID – Grouping example
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CRID – Resolution
CRIDTOP
locator
CRIDA CRIDB CRIDC
CRIDB1 CRIDB2
locator locator locator
locator
A CRID can resolve to other CRIDs
At some point, CRIDs must resolve to locations
CRIDs resolve to lists (of CRIDs or locators)
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CRID – Hierarchy Example
Star Trek
Location 1
Original Series1966-1969
Voyager1995-present
Deep Space Nine1993-1999
The Next Generation1987-1994
Season 1: 1966-1967
Episode 1: “The Man Trap” …
… …
Episode 29: “Operation: Annihilate!”
… … …
Season 2: 1967-1968 Season 3: 1968-1969
…
Location 2 Location
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TV Anytime typical flow of data
Publish Select Acquire Search View Finish Locate
• Content providers will publish information (metadata) about their content, which can be used in a search and select process
• Selected content can be located and acquired for viewing• A finishing phase is foreseen e.g. to deal with PPV scenarios
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Example applications
• Recording from a trailer• Linkage from Web to broadcast• Electronic Programme Guide• Searching for interesting programmes• Segmentation
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Recording from a trailer
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Recording from a Web page
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Electronic Programme GuideUsing TV Anytime data, you can create an EPG with data from many sources.
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Detailed programme information
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Grouping
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Searching for interesting programs
Using TV Anytime data, a consumer can search for interesting content without knowing where or when it will be broadcast
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Searching for interesting programmes using a bi-directional link
Two step process:1 Find out from the server what can be queried2 Make a query using supported fields.
service description
Programme metadata that matches query
“What search fields do you support?”
actor=“John Wayne” and genre=“film”
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Segmentation
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Segmentation
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Industry Adoption
• Transport mechanisms for TVAF data have been incorporated into DVB-GBS specifications and are being verified in UK DTG testbed (Europe)
• ARIB have adopted TVAF (Japan)• ATSC have selected TVAF metadata (US)• IPTC have produced a ProgramGuideML, and
have adopted TVAF metadata• EBU P/Meta is TVA compatible, using many
common elements (Europe)• Companies in US, Europe, and Asia are
developing TVA-compatible products
Philips Consumer Electronics, CTO Office, ..NAME.., ..DATE (in numbers).., AB24-P02-…/.. 25
Thank you for your attention!
Special thanks to• Alex Ashley (several content referencing slides)• Keith Millar (metadata slide)• Andrew McParland (several screenshots)• SMASH/STORit/myTV/Share it! project members• TV-Anytime Forum members