The Avalon Media System

A Next Generation Hydra Head for Audio and Video Delivery

Demo!

What is Avalon?

Integration with:• ILS• LMS• Websites• Authn/Authz• Archival Storage

Black Hat Guy and Megan from xkcd by Randall Munroe. Used under a Creative Commons BY-NC license.

Legos? Really?

Shhh!

Project Partners and Collaborators

Development Team

Content Processing with Matterhorn

§ Workflow pipeline§ Pingbacks for status updates§ Caching of key metadata / images

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.”

Matterhorn workflowHow does content get prepared for delivery by Avalon?

Content

Status

HTTP Upload

File Dropor

BatchIngest

Batch/Unattended Ingest

Encoding profilesCustomized encoding profiles for mobile and desktop streaming

Status updates

Between every conversion step Matterhorn tells Avalon to ask for an update

Caching of key data

§ Poster thumbnails§ Fedora datastreams for technical metadata§ Solr indices for resource discovery

Robust Access ControlsCustomizable rules for discovery and access.

Stream security

§ Institutional needs§ Tokenized authentication§ RTMP streaming§ HTTP Live Streaming

Institutional needsDifferent streaming formats for desktop and mobile users

RTMP Streaming

HTTP Dynamic/Live Streaming

Tokenized authentication

Request Stream DetailsReturn Stream URL + Auth Token

838f1b90-0c4f-4eaf-b3fc-4368587f1b8e-af2fad299000fc841d40db30793560ea

Media Package IDAuth Token

Request Stream

Requ

est T

oken

Aut

h

Valid

Toke

n: M

edia

Pac

kage

ID

Inva

lid To

ken:

403Stream

Content

or Not Found

RTMP StreamingFlash based player for desktops and full featured platforms

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)

Back to the demo!

Learn more

Bi-weekly demoshttp://go.iu.edu/6Q1

Project sitehttp://www.avalonmediasystem.org/

Source code repositoryhttps://github.com/variations-on-video/

User stories, tasks, and bugshttps://bugs.dlib.indiana.edu/browse/VOV

URLs. Yay.

Thank you!

Michael B. Kleinmichael.klein@northwestern.edu

Nathan Rogersrogersna@indiana.edu