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6/10/20141 TV-Anytime An adaptation to DVB Transport Streams and Implementation in European Projects David White, NDS Ronald Tol, Philips.

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Presentation on theme: "6/10/20141 TV-Anytime An adaptation to DVB Transport Streams and Implementation in European Projects David White, NDS Ronald Tol, Philips."— Presentation transcript:

1 6/10/20141 TV-Anytime An adaptation to DVB Transport Streams and Implementation in European Projects David White, NDS Ronald Tol, Philips

2 6/10/20142 TV-Anytime functionality, e.g. Watch what you want, when you want Simpler ways for the consumer to acquire TV content on local storage click on EPG, trailer, website Programme groups > programmes > programme segments Example of groups: series, related programmes Example of programmes: an episode, a drama Example of segments: news items, chapter Personalisation and automatic recording

3 6/10/20143 Overview of a TVA System

4 6/10/20144 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

5 10 June The CRID in a nutshell CRID is a Uniform Resource Identifier (URI) CRID:// / is a registered internet domain name part is allocated by the authority. Example: CRID://sky.com;films/CastAway

6 6/10/20146 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

7 6/10/20147 CRID Resolution CRID TOP locator CRID A CRID B CRID C CRID B1 CRID B2 locator A CRID can resolve to other CRIDs At some point, CRIDs must resolve to locations CRIDs resolve to lists (of CRIDs or locators)

8 6/10/20148 CRID Hierarchy Example Star Trek Location 1 Original Series Voyager 1995-present Deep Space Nine The Next Generation Season 1: Episode 1: The Man Trap … …… Episode 29: Operation: Annihilate! ……… Season 2: Season 3: … Location 2Location

9 6/10/20149 The CRI Authority All CRIDs are published by an authority Metadata is often accessed by CRID & therefore by authority Authority is not tied to a particular Network, Bouquet, Transport stream or Service Authority is a new entity in a DVB network

10 6/10/ RNT: Structure RNT targeted to receivers by context_id and context_id_type Resolution provider entry RAR descriptors reference CRI CRI for authority1.com provided by a second CRI provider CRID authority entry

11 6/10/ Authority: RNT usage

12 6/10/ CRI: structure Range Prepend Unique

13 6/10/ Metadata XML is very verbose and not very suitable for broadcast, therefore... TV-Anytime defines data format: Fragment: Split document Encode: Compact binary format (MPEG-7 BiM) Encapsulate: Grouping and identification - containers Index: Rapid access for searching (e.g. by CRID) DVB defines broadcast method: MHP object carousel File names of containers Linkage for finding metadata required T19:00: :00 PT00H45M

14 6/10/ Metadata linkage

15 6/10/ Trailer booking Simple mechanism for promoting content Subtable carries data when content is being promoted Description of content CRID Receiver monitors for entries in subtable

16 6/10/ Trailer booking Delivering the CRID with description alongside trailer broadcasts

17 6/10/ Recording CRIDs resolve into locators Broadcast locator has 3 modes: Time only mode - simplest mode Event_id mode - supported by EIT p/f TVA_id mode List of TVA_ids carried in EIT p/f Overlapping and nested programmes Programme status Starting shortly, running, paused, canceled

18 6/10/ The End Thank-you for listening


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