introducing tv anytime phase 1
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Introducing TV Anytime Phase 1 . Ronald Tol Technology Manager, Philips Digital System Laboratories Convenor TVAF STC Working Group. Overview. Background TVA Metadata TVA Content referencing TVA example applications Industry adoption. Philips Research activities related to TVA. - PowerPoint PPT PresentationTRANSCRIPT
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Introducing TV Anytime Phase 1
Ronald TolTechnology Manager, Philips Digital System LaboratoriesConvenor TVAF STC Working Group
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Philips Digital Systems Labs, Ronald Tol, 28 January 2004 2
Overview
• Background• TVA Metadata• TVA Content referencing• TVA example applications• Industry adoption
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Philips Digital Systems Labs, Ronald Tol, 20 September 2004 3
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
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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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Philips Digital Systems Labs, Ronald Tol, 20 September 2004 5
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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Philips Digital Systems Labs, Ronald Tol, 20 September 2004 6
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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Philips Digital Systems Labs, Ronald Tol, 20 September 2004 11
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 ExampleStar 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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Philips Digital Systems Labs, Ronald Tol, 28 January 2004 13
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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Philips Digital Systems Labs, Ronald Tol, 28 January 2004 24
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
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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
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