Videotorium: video sharing for research and education

Videotorium: video sharing for research and education

András Kovács NIIF Institute [email protected]

TF-Media meeting Utrecht, The Netherlands 31 March 2011

Project overview emzeti Információs Infrastruktúra Fejlesztési Intézet • History: Video-on-Demand (VoD) Windows Media → Flash Share? Metadata? '

• Videotorium: http://videotorium.hu/ Launched: 06/2010 Own development Uploader user base: Research

and education Public collections Non-profit applications Videotorium: video sharing for research and education

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Videotorium emzeti Információs Infrastruktúra Fejlesztési Intézet


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Portal feature overview emzeti Információs Infrastruktúra Fejlesztési Intézet • Special Player: Flash Rich media: A/V + slides Embed, share Media download

• Navigation: Categories (science fields) Channels/Events Search (simple/advanced)

• Recommendations:

Featured Latest User evaluation Most popular Videotorium: video sharing for research and education

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Upload/share emzeti Információs Infrastruktúra Fejlesztési Intézet • Uploaders:

Research & education Public collections Students (limited) Non-profit knowledge dissem. AAI preference (eduID)

New recording

Metadata2: Details, classification

Media and slide upload

Metadata3: Contributors

Automatic conversion

Publication options

Metadata1: Basic description

Ready

• Upload steps: 1. Media, presentation and attachments 2. Automatic conversion 3. Metadata description 4. Visual edit (slides) 5. Publication options


Visual edit, slide timing

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Automatic conversion emzeti Információs Infrastruktúra Fejlesztési Intézet • Media surrogates: Audio only version (mp3) Flash audio/video: H.264/AAC

Normal quality

High quality (up to 720p HD)

Formats: avi, mpeg-1/2/4, flv, f4v, m4v, mp3, wma/wmv, ogg, etc. Thumbnail generation, key pictures Tools: ffmpeg (mplayer)

• Attached documents: Presentation: ppt/pptx, odp, pdf, sxi

PDF conversion + stills Full text indexing

Additional documents Tools:

OpenOffice, MS Office ghostscript, pdftotext, ImageMagick Videotorium: video sharing for research and education

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Metadataemzeti model Információs Infrastruktúra Fejlesztési Intézet • Target group: viewer vs. uploader Too much vs. less details Intuitive user interface Effective search engine

• Multi language: Original language (any) Optional English description

• Metadata types: Bibliographical records

Recordings, events, organizations

Contributor records Rights & permissions Technical metadata Advanced: content description Videotorium: video sharing for research and education

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Metadataemzeti model: levelsInfrastruktúra of description Információs Fejlesztési Intézet • Basic description: partly optional Improved Europeana Semantic Element DC Recordings, persons, events, organizations/bodies

• Science field classification: mandatory Ortelius thesaurus (2 language: en/hu) EU: science project classification Hierarchical: 2500 items (!)

BME OMIKK

• Content description: optional Library of Congress Subject Heading (LCSH) thesaurus “Quasi standard”: subject words, relations HU adoption: University of Debrecen Library

• Free descriptors: optional Videotorium: video sharing for research and education

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Metadata: classification and description emzeti Információs Infrastruktúra Fejlesztési Intézet • Classification:

Add to channel/event Science field (Ortelius) Genre Free tags LCSH subject words

• Description:

Date of recording Detailed description Copyright message Technical note Videotorium: video sharing for research and education

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Metadata: adding a contributor emzeti Információs Infrastruktúra Fejlesztési Intézet • Contributor: Name, degree Profession Key picture

• Role: E.g.: speaker, writer, etc.

• Job groups:

Organization Job Scientific prizes More groups:

Editable Add according to appearance

Author database Videotorium: video sharing for research and education

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Metaadat: publikációs opciók beállítása emzeti Információs Infrastruktúra Fejlesztési Intézet • Access:

Public Registration Group of organization Own closed group (invite)

• Time restricted: Accessible in a time window

• Metadata exchange (OAI)? • Downloadable: Audio/video surrogates

• Embeddable in external webpage? • Publish / revoke


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Visual edit emzeti Információs Infrastruktúra Fejlesztési Intézet • Special Flash application:

Synchronize slides to video Uploaded presentation file or bitmap Set chapters, title of slides Virtual trim


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Search

emzeti Információs Infrastruktúra Fejlesztési Intézet

• Quick / advanced search Metadata search Slide content search

• Slide indexing: Full text index presentation pages OCR bitmap slides (cuneiform)

• Slide search: Play starts from selected slide


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Architecture emzeti Információs Infrastruktúra Fejlesztési Intézet


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Hardware andInformációs software emzeti Infrastruktúra Fejlesztési Intézet • Software:

Linux, MySQL, Apache, Lighttpd FFmpeg, mplayer OpenOffice, MS Office Ghostscript, ImageMagick, pdftotext, etc. Web: PHP, Flash, JavaScript Multiplatform and browser independent

• Streaming: Wowza Media Server Java, multiplatform RTMP streaming (HTTP fallback) Authentication plugin (AAI integration) Videotorium: video sharing for research and education

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Videotorium asInformációs metadata aggregator emzeti Infrastruktúra Fejlesztési Intézet • OAI-PMH standards based metadata exchange • Organizational repositories • Local/international providers Institutional repositories Thematic archives

Public collection archives

Metadata-exchange

Other/international aggregation points

Videotorium

Uploaders

Content consumers


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Live broadcasts emzeti Információs Infrastruktúra Fejlesztési Intézet

User

Videotorium database

Videotorium webserver

Streams HTTP

Wowza Media Server SSH tunnel Slides, titles (HTTP)

Flash H.264/AAC Streams

Presenter VGA

Director

Encoder Live event venue


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Micro sites for Információs organizations emzeti Infrastruktúra Fejlesztési Intézet • Subdomains for organizations Show own content, news


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Content in repository emzeti Információs Infrastruktúra Fejlesztési Intézet • Typical content: Workshops, conferences Recorded VC

• Cooperation with organizations: Upload a collection + metadata Demonstrate usability

• Examples: “Political change in Hungary” (1989)

BBC and Radio Free Europe recordings

Legendary “TV University” (1980-82) “Net university” in HD Videotorium: video sharing for research and education

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Thank you

András Kovács [email protected] http://videotorium.hu/

Videotorium: video sharing for research and education

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