The Avalon Media System: A Next Generation Hydra Head for Audio and Video Delivery
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Presented by Michael B. Klein and Nathan Rogers at the 2013 Code4Lib conference in Chicago, IL, on February 12, 2013.
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The Avalon Media System: A Next Generation Hydra Head for Audio and Video Delivery
- 1. The Avalon Media System A Next Generation Hydra Head for Audio and Video Delivery
- 2. Demo!
- 3. Legos? Really? What is Avalon? Integration with: • ILS • LMS Shhh! • Websites • Authn/Authz • Archival Storage Black Hat Guy and Megan from xkcd by Randall Munroe. Used under a Creative Commons BY-NC license.
- 4. Project Partners and Collaborators
- 6. Content Processing with Matterhorn § Workflow pipeline § Pingbacks for status updates § Caching of key metadata / images
- 7. Opencast Matterhorn “ Matterhorn is a free, open-source platform to support the management of educational audio and video content. Institutions will use Matterhorn to produce lecture recordings, manage existing video, serve designated distribution channels, and provide user interfaces to engage students with educational videos.”
- 8. HTTP Upload Batch or Ingest File Drop Content Status Matterhorn workflow How does content get prepared for delivery by Avalon?
- 10. Encoding profiles Customized encoding profiles for mobile and desktop streaming
- 11. Status updates Between every conversion step Matterhorn tells Avalon to ask for an update
- 12. Caching of key data § Poster thumbnails § Fedora datastreams for technical metadata § Solr indices for resource discovery
- 13. Robust Access Controls Customizable rules for discovery and access.
- 14. Stream security § Institutional needs § Tokenized authentication § RTMP streaming § HTTP Live Streaming
- 15. RTMP Streaming HTTP Dynamic/ Live Streaming Institutional needs Different streaming formats for desktop and mobile users
- 16. Tokenized authentication Auth Token Media Package ID 838f1b90-0c4f-4eaf-b3fc-4368587f1b8e-af2fad299000fc841d40db30793560ea Request Stream Details Return Stream URL + Auth Token ID 03 ge : 4 ka uth en ac nA St r N ok a P Re re ot qu ke d T di o am F ali Me To es Co oun tS st Inv en: nt d tre ue ok en q am Re dT t li Va
- 17. RTMP Streaming Flash based player for desktops and full featured platforms
- 18. HTTP Live Streaming § Mobile fallback to a standard HTML5 video container § Dynamic segmentation with Adobe Media Server § Pre-rendered segments to support other HTTP servers (e.g., Apache, lighttpd, nginx)
- 19. Back to the demo!
- 20. Learn more Bi-weekly demos http://go.iu.edu/6Q1 Project site http://www.avalonmediasystem.org/ Source code repository https://github.com/variations-on-video/ User stories, tasks, and bugs https://bugs.dlib.indiana.edu/browse/VOV URLs. Yay.
- 21. Thank you! Michael B. Klein Nathan Rogers michael.klein@northwestern.edu rogersna@indiana.edu