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SURA/ViDe 5th Annual Digital Video Workshop GCATT Atlanta, Georgia March 26, 2003 The ViDe Guide to Streaming Media
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Presentation Outline Cookbook Overview Creating Digital Assets Building an Infrastructure Managing Digital Repositories Authentication and Authorization Accessibility Issues Emerging Technologies
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Streaming Media Working Group Established in April 2002 38 Individual Members Representing 18 Universities & Consortia Including 7 SURA Schools And 2 International Members 12 Member Editorial Board
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Streaming Media Cookbook Mission: To help educational institutions plan and promote streaming media services on their campuses
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Snapshot of Current Services Statistical Sample of US Universities Comprehensive Survey of I2 Schools Comparison with International Practice
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Scope of the Cookbook Media-on-Demand and Live Streaming Audio, Video and Mixed Media Proprietary and Standard Formats Technical Issues and Policy Issues
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Cookbook Format Tutorials Best Practices Case Studies Evaluation Guidelines Whitepapers Reference Tools
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Applications and Scenarios Electronic Reserves Distance Education Digital Libraries Videoconference Archives Public Relations and Special Events
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It Takes a Village: Identifying Strategic Partners Video Production Units IT Infrastructure/Networking Services Continuing Education Libraries Instructional Training Legal Affairs Public Relations Help Desk
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Planning for the Future Developing a Viable Business Plan Integrating Disparate Roles and Functions Securing Institutional Commitment Making Ends Meet Taming the Wild Vendor Anticipating the Unknowable
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Creating Content: Pre-Production Validate Project Concepts Make a Plan Purchase Equipment and Hire Personnel
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Creating Content: Production Mid-Production Planning and Coordination Lighting Audio Video Locations –Office vs Classroom vs Studio Wardrobe Personnel
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Creating Content: Post-Production Video/Audio Capture External Capture –Composite –USB –Firewire/iLink/IEEE1394 Cabling Editing
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Creating Content: Hardware/Software/Personnel Support/Assistance Infrastructure Encoding CODEC Application Default CODECs Analysis/Understanding
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Creating Content: Hardware/Software/Personnel Files Types –Real –Quicktime –Microsoft Media Formats –MPEG1 –MPEG2 –MPEG4 –MP3 –Others
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Creating Content: Support Issues VOD (Video on Demand –Hardware –Software –Personnel Live Webcasts –Hardware –Software –Personnel
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Building the Infrastructure Streaming Servers Types of Streaming Servers –RTSP –HTTP –Others
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Building the Infrastructure Streaming Servers Vendors –Real –Microsoft –Apple –IBM –Cisco –Macromedia –Others
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Building the Infrastructure Network Infrastructure Bandwidth Requirements Issues on the LAN –Wireless –Ethernet Configurations
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Building the Infrastructure Network Infrastructure Reaching Clients Outside your LAN –Firewalls –Modems –DSL/Cable Modems –VPNs –Proxies –Caching Servers –Content Distribution Networks (CDN)
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Building the Infrastructure Network Infrastructure Multicast Issues Streaming to Handhelds Satellite Usage –Content Origination (uplink) –Satellite Downlink
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Building the Infrastructure Storage Direct Attached Storage (DAS) Network Attached Storage (NAS) Storage Area Networks (SAN) Mixing Storage Architectures Determing Needs & Product Evaluation Emerging Storage Technologies
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Building the Infrastructure Origination of Live Content Where to Place Live Encoders Network Issues Monitoring Automation/Scheduling Remote Control
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Building the Infrastructure Transcoding Issues –Quality of Source Material –Lossy vs. Lossless Compression –General Methods for Transcoding Products –FlipFactory –Cleaner –Anystream –ProCoder Automation
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Managing Digital Repositories Leveraging Existing Systems What is already in place? –E-Reserves Systems –Course Management Systems –Authentication Systems –Digital Library/Content Mgmt Systems –Local Metadata/Content Standard
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Managing Digital Repositories Functional Requirements Ingest Functions Data Management/Metadata Mgmt Archival Storage Procedures Preservation Planning Access Strategies – Deep or Shallow
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Managing Digital Repositories ADMINISTRATION PRESERVATION PLANNING Data & MetaData Mgmt. Archival Storage Ingest Access AIP descriptive info descriptive info AIP OAIS MODEL CONSUMERCONSUMER PRODUCERPRODUCER Training Discovery Infrastructure Training Discovery Infrastructure
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Managing Digital Repositories Central vs Distributed Why not Both? Should your next system – be separate or an aggregate? Building relationships for the future Face to Face meetings with video counterparts Workflow Issues – Who does What?
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Authentication and Authorization Security Basics Securing the Server Securing the Network Securing the Data on the Network Authentication Authorization
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Authentication and Authorization Streaming Video Security Authentication –User Name/Password –Credentials –Proprietary Solutions Authorization –User Name/Password –LDAP –Credentials –Proprietary Solutions –Digital Rights Management
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Authentication and Authorization Digital Rights Management (DRM) DRM Defined DRM in Streaming Video
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Authentication and Authorization Shibboleth Authenticate Locally, Access Globally
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Accessibility Issues Section 508 Requirements Requires that content dependent upon auditory or visual communication be accessible through alternative means http:www.section508.gov Tools & Guidelines at: http://www.w3.org/wai
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Accessibility Issues Pragmatic Considerations Who is your audience, and what accessibility options are necessary to ensure effective communications? Web Design considerations critical Customize with aid of Office for Students w/Disabilities
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Accessibility Issues Captioning Resources Captions preferred in separate window rather than superimposed over video Real and QuickTime Supported by.smil format – http:www.w3.org/AudioVideo WinMedia supported by.sami format http://msdn.microsoft.com/library/default.asp? url=/library/en- us/dnacc/html/atg_samiarticle.asp
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Accessibility Issues Captioning Tools http://www.w3.org/AudioVideo FREE SOFTWARE: Magpie http://ncam.wgbh.org/webaccess/magpie COMMERCIAL SOFTWARE: CPC http://www.cpcweb.com/
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Accessibility Issues Visual Impairment Caption all graphics Separate Descriptive tracks More likely to be hardware dependent –Braille readers Text-to-Speech engines
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Contact Us…….. streaming-cookbook@sunsite.utk.edu
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