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Multimedia Workshop

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Transcript

  • 1. Multimedia Workshop Video Streaming & Video Conferencing
  • 2. Multimedia Team • Seán O’Brien • John Lyons • Justin Hourigan multimedia@heanet.ie
  • 3. Agenda • Video Conferencing Concepts • H323 Elements • HEAnet H323 Services • Video Streaming Concepts • Windows Media • Streaming Network • Multicast Streaming • Upcoming Video Services Projects
  • 4. Video Conferencing • Audio/Video/Data Interaction between remote sites.
  • 5. Uses of Videoconferencing • Meetings • Conferences (Remote presentation) • Distance Learning • Music Classes • Lifelong learning • Employee Orientation • Training • Interviews
  • 6. Video Conferencing • H323 • SIP • Netmeeting • Conference XP • Skype • VRVS / Access Grid
  • 7. Types of Video conferencing terminals
  • 8. H323 Backend • Gatekeeper – All endpoints register to this – All services from MCU and Gateway Register here – Calls are routed between endpoints and services • Gateway – Primary Rate BRI (30 channels) – +353 1 4490889 • Multipoint Controller Unit – Up to 70 endpoints (bandwidth dependant – To be upgraded soon
  • 9. HEAnet Conferencing (Centralized) Services H.323 Client H.323 Client IP V IP id eo Co to IS Co nfe DN n fe rne V re n ce nc ide Ca eC o ll all IP Network H.323 Gatekeeper HEAnet PoP H.323 MCU H.323 to Streaming GATEWAY H.323 GATEWAY ISDN Public Network POTS / GSM H.320 Client 1 2 3 1 2 3 1 2 3 4 5 6 4 5 6 4 5 6 7 8 9 7 8 9 7 8 9 * 8 # * 8 # * 8 #
  • 10. Video Streaming • Live Streaming • Video On-Demand
  • 11. Uses of Video Streaming • Special Events • Conferences (Remote Attendance) • Distance Lecturing • Remote Monitoring • Academic Content Distribution • Student Produced Content Distribution
  • 12. Video Streaming • Windows Media. • Real. • QuickTime • MPEG 2/4.
  • 13. HEAnet Streaming Services
  • 14. IP Multicast Unicast Multicast • Less bandwidth required • Server load decreased • Networking load decreased • Does require network to be multicast aware
  • 15. IP Multicast • Multicast can be used for both video conferencing and video streaming • VLC, Windows media & Real player all support IP multicast • Multicast is particularly useful for high bandwidth streams which would saturate a link using unicast • HEAnet planning to provide future streaming events & terrestrial streaming via both multicast and unicast • BBC streams currently available via multicast
  • 16. IP Multicast
  • 17. Upgraded and future services • Streaming servers upgraded • MP4 and QuickTime streaming • Streaming of terrestrial television and radio stations
  • 18. Automating Video Streaming • Web interface • Uploading, management and meta-tagging of content • Creation of live publishing points
  • 19. Questions? • If you wish to contact us: – Email : multimedia@heanet.ie – Phone: 01 6609040 – Video Conference: 0035301101006 – Video Conference: 193.1.31.215