A Metadata Model for Peer-to-Peer Media Distribution

A Metadata Model forPeer-to-Peer Media Distribution
Christian Timmerer, Michael Eberhard, Michael Grafl, Keith Mitchell,Sam Dutton, and Hermann Hellwagner
Klagenfurt University (UNIKLU)  Faculty of Technical Sciences (TEWI)
Department of Information Technology (ITEC)  Multimedia Communication (MMC)
http://research.timmerer.com  http://blog.timmerer.com  mailto:christian.timmerer@itec.uni-klu.ac.at
19 May 2010
Acknowledgments. This work was supported in part by theEuropean Commission in the context of the P2P-Next project (FP7-ICT-216217).

Outline
Background / Introduction
P2P-Next
Architecture
Workflow
Metadata Model
P2P-Next Item
Metadata Specification: Core + Optional Metadata
Application Programming Interface
Conclusions and Future Work
2010/05/19
2
Christian Timmerer, Klagenfurt University, Austria

Next Generation of P2P Networks: P2P-Next
2010/05/19
3
Whilst watching content, the user is able to use favourite content application that enables quick selected of favoured content.

Next Generation of P2P Networks: P2P-Next
2010/05/19
4
FP7 Integrated Project (IP) with four year duration (2008 - 2011) with 21 partners from 12 countries comprising large European players to ensure the future project’s sustainability, SMEs, and Subject Matter Experts to manage highly focused technology components
The key objective
P2P-Next develops an open source, efficient, trusted, personalized, user-centric, and participatory television plus media delivery mechanism with social and collaborative connotation using the emerging Peer-to-Peer (P2P) paradigm, which takes into account the existing EU legal framework.

Architecture and Workflow
2010/05/19
5
Ingest Interface
Atom | RSS Store
Content (A/V)
Presentation/Interactivity Layer
E.g., video, image,audio, pdf, txt, …
.atom
.rss
Core Metadata
E.g., metadata describing the individual content asset in various forms
NextShare
P2P-Next Item
P2P-Next Item
Additional Metadata
.torrent
.torrent
… seeding*
E.g., .m21,
.ts, .dvb
Metadata
E.g., metadatadescribing the
whole P2P-NextItem + structure(MPEG-21 DID)
* … seeding is done automatically oncethe .torrent is provided
Service Discovery / Distribution Interface

High-Level Structure of P2P-Next Item
2010/05/19
6
P2P-Next Item
.torrent
.m21
.ts
.el{1-3}
torrent data …
Enh. Layer 1
(svc)
DID: (b)xml
- Advertisement
- Payment
- Scalability
- Interactivity
- etc.
Audio
(mp3|aac)
DID: (b)xml
- Core Metadata
- Ref. to Media (.ts, .el{1-3})
- Ref. to .m21
Enh. Layer 2
(svc)
Video
(avc)
Enh. Layer 3
(svc)
Resources

Metadata Model for P2P Media Distribution
2010/05/19
7
P2P-Next Item
LIMO Content
Rich Metadata
dii:Identifier for the Entire Item
A/V Content
dii:Type forRich Metadata
dii:Type for LIMO Content
dii:Type for A/V Content
dii:RelatedIdentifier for the Entire Item
Payment Metadata
Additional Metadata
dii:Type for Payment
JS for LIMOid="a.js"
dii:Type for the Entire Item
CSS for LIMOid=”b.css"
Advert. Metadata
dii:Type for Advertisement
. . .
Binary Data
HTML
. . .
Core Metadata
Legend
Descriptor
Component
Descriptor
Resource

Metadata Specification
Basic approach
Define attributes (vocabulary) in natural language
Define mappings to existing (de-facto) standards (TVA, MPEG-7, URIPlay)
Core metadata
Content-related information that is required to search for a specific P2P-Next Item
Optional metadata
Advertisement: formats, advertisement types, target group
Payment: price, payment options and recipient, donations
Scalability: properties of the scalability layers
Media review: perception of content such as user ratings
User profile: name, contact information, usage preferences/history
2010/05/19
8

Application Programming Interface
MPEG-M (MXM) like API: DID Creator + DID Parser implemented in C++ using the CubeWerx BXML library
Most important lesson learned
The format doesn’t matter at allas long as an API for creating and parsing exists!
2010/05/19
9

Conclusions
This paper: architectureand metadata model utilized within the NextShare system
The major advantages of our approach are
Interoperability thanks to the usage of existing, standardized representation formats for both media and metadata
Backwards compatibility to the well-known BitTorrent protocol.
Next share + metadata model successfully demonstrated at IBC’09 and NEM-Summit’09; currently evaluated within Living Lab
Future work
Complete definition, design, implementation, and validation of optional metadata
Full support of LIMO content
2010/05/19
10

Advanced Video Streaming Techniques for Peer-to-Peer Networks and Social Networking
Workshop held within ACM Multimedia, 25-29 October 2010, Firenze, Italy
Invited Talk by George Wright, Head of Prototyping, BBC Research and Development
Audio/visual content and metadata delivered over the open Internet using P2P-Next: some experiences from a broadcaster's perspective
The best paper award (€300) is sponsored by RADVISION(http://www.radvision.com/)
Web site: http://www.p2pstreaming.eu
2010/05/19
11
You are welcome submitting a paper

Thank you for your attention
... questions, comments, etc. are welcome …
Ass.-Prof. Dipl.-Ing. Dr. Christian Timmerer
Klagenfurt University, Department of Information Technology (ITEC)
Universitätsstrasse 65-67, A-9020 Klagenfurt, AUSTRIA
christian.timmerer@itec.uni-klu.ac.at
http://research.timmerer.com/
Tel: +43/463/2700 3621 Fax: +43/463/2700 3699
© Copyright: Christian Timmerer
12
2010/05/19

http://multimediacommunication.blogspot.com	33
http://www.slideshare.net	25
http://translate.googleusercontent.com	2
http://hghltd.yandex.net	2
http://static.slidesharecdn.com	1
http://www.lmodules.com	1
http://multimediacommunication.blogspot.com.br	1

A Metadata Model for Peer-to-Peer Media Distribution

by Alpen-Adria-Universität Klagenfurt on May 19, 2010

Accessibility

Categories

Tags

Upload Details

Usage Rights

7 Embeds 65

Statistics

A Metadata Model for Peer-to-Peer Media Distribution — Presentation Transcript