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Broadcasting and High Bandwidth Network Applications – Pushing the Technology Michael Wellings Director of Engineering

Broadcasting and High Bandwidth Network Applications – Pushing the Technology Michael Wellings Director of Engineering . www.researchchannel.org. ResearchChannel. Consortium of Institutes of Higher Education and Research National Academies Corporations www.ResearchChannel.org.

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Broadcasting and High Bandwidth Network Applications – Pushing the Technology Michael Wellings Director of Engineering

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  1. Broadcasting and High Bandwidth Network Applications – Pushing the TechnologyMichael Wellings Director of Engineering www.researchchannel.org

  2. ResearchChannel • Consortium of Institutes of Higher Education and Research • National Academies • Corporations • www.ResearchChannel.org

  3. Participants University of Chicago University of Colorado University of Hawaii University of Houston University of Maryland-College Park University of North Carolina University of Pennsylvania University of Southern California University of Texas -Austin University of Virginia University of Washington University of Wisconsin-Milwaukee Vanderbilt University Virginia Tech Yale University CENIC Internet2 National Academies National Academy of Engineering National Academy of Sciences National Institutes of Health National Institute of Standards and Technology National Sea Grant College Program R1edu.org Research Centers: IBM Corporation Sony Electronics Inc. Vulcan • Baylor College of Medicine • Carnegie Mellon University • Duke University • George Mason University • Georgia Institute of Technology • Johns Hopkins University • Massachusetts Institute of Technology • National University of Singapore • Oregon Health and Science University • Princeton University • Rice University • Stanford University • Tufts University • University of Alaska-Fairbanks

  4. ResearchChannel Goals • Create a recognized global media presence for research activity • Provide a high-quality and accessible resource for research information • Encourage collaborations and technology experiments among ResearchChannel participants to develop new methods of distribution

  5. Viewership • 7 Million on Echostar’s DISH 500 Network • 6.4 Million on Cable Systems in 19 States • 35,000 requests for web pages, webcasts, and on-demand files fulfilled per month • Viewership from around the world

  6. Topics: • High-quality media using high speed networks • Content delivery applications • V.O.D. interface for HD, MPEG2@ML • Desktop HD client @ 19.2mbps MPEG2@HL • Applications for our Radio/TV Ops • DigitalWell Media library • “Convergence” and the future

  7. High Quality Media delivery using high-speed networks • http://www.researchchannel.org/inside/projects/

  8. Network Engineering • Jan Eveleth • Manager, GigaPOP Services • Pacific Northwest GigaPOP

  9. Network Engineering • Real-time applications • High data rates • Sensitivity to loss, packet re-ordering, jitter • Cross boundaries

  10. Packetized SMPTE 292M @ 1080/60i • Raw HDTV/IP – single UDP flow of 1.5 Gbps • Project of USC/ISI East, Tektronix, & UW, (DARPA support) • 6 Jan 2002: Seattle to Washington DC via Abilene • Single flow consumed 60% of backbone bandwidth • 18 hours: no packets lost • 15 resequencing episodes • Experiment repeated Nov 2002 @ SC’02 UW Seattle to Denver

  11. SONY HDCam/IP • SDTI capture using Optibase VideoPump and custom ResearchChannel software • HDCam Encode and Decode • Demonstrated to the Broadcast Industry at NAB2000 in the SONY Booth

  12. Application Centric QoS • Classic Internet architecture - have applications assume responsibility for quality • Applications should • Utilize error correction techniques • Adapt to changing network conditions • Provide user-visible telemetry • Fortunately, all of these are a natural fit for streaming media…

  13. Error Correction • Should cope with intermittent problems • Forward Error Correction • Buffer and retransmit • Deal with packet re-ordering • Evaluate latency/buffering design points

  14. ResearchChannel HD/IP Futures • FEC • Improved diagnostics • Low latency ( < .5 sec) • Multicast • Desktop client • VOD

  15. Back end Engineering • Jim Deroest • Director of Streaming Media

  16. Development • Original focus broadcast-streaming integration. • ResearchChannel, UWTV, KEXP • Automation: encode, ingest, metadata, schedule, deliver • Scalable standard def, high def, uncompressed streams • Support commodity bit rates and formats • Focus expanded to include institutional collections • High-quality and accessible resources to research information. • Educational outreach • Interoperate with other digital repositories • Why quality matters …

  17. Webcast and Video On Demand • Hours Viewed Increases 200% since Jan 2002 • Breakout by Bandwidth

  18. Average Viewing Time • Duration longer for VOD, higher bandwidths

  19. Backend Diagram • Insert diagram image - mass store system

  20. Application: Television • ResearchChannel, UWTV • Automated Encoding • Dub time SONY MAV capture 50mbps i-frame MPEG2 4:2:2 • Transcode farm – Flipfactory, Virage • 1300+ hrs of SD 5.6mbps MPEG2@ML • Broadcast Scheduling Integration • Protrack, DW metadata -> Dynamic web schedule • Integrated with DW On-Demand library • SD MPEG2@ML multicast • International rebroadcast support • http://www.researchchannel.org

  21. Application: KEXP-FM • AES Infrastructure • Live Broadcast Stream • Uncompressed 1.4mbps • Commodity bit rates • Archived Live Broadcast • 2 weeks, all formats • Real-time Broadcast Playlist, CDID • Dynamic web update integrated with DJ console • Archived with live broadcast • http://kexp.org

  22. Media Service Data Rates • VOD • MPEG2@ML 5.6mbps • WM @ 56kbps, 256Kbps, 1300Kbps • Video Streaming - WM • 28.8 – 100kbps • 200kbps • 1300kbps

  23. High-End Applications: Technology Demonstrations

  24. iGrid 2002 - Video Across the Atlantic • International Partnerships

  25. New Projects • MPEG-2 MP@HL ATSC delivery • Desktop client for VOD • Prospects for Interactivity • SONY HDCam on-demand • SMPTE 259M/IP joint project with Internet2 – announced today at Internet2 Spring Meeting • Possible multicast applications@ high bit rates • UW Medical Surgery Pavilion • APAN 2003 – Busan, Korea

  26. The End • For more information: • www.researchchannel.org Or write • Info@researchchannel.org • wellings@cac.washington.edu

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