streaming_media.ppt
Transcript of streaming_media.ppt
Streaming Media
November 21, 2003
Topics What is streaming media Things to consider ITSS Streaming services Streaming examples How to get started? Streaming options ITSS rates and contacts Q&A
What is Streaming Media The delivery of audio, video and other
multimedia content across the internet using streaming media servers.
Content is converted to digital files sent over the internet as data packets.
Playback begins as soon as first packets arrive or as requested by the end user.
No waiting for complete file to download
No impact on end-user’s computer
Streaming Media Formats Major player formats
Real Networks Real Media Player – RM
Microsoft Windows Media Player – WMV
Apple Quicktime Player – MOV
Other formats Audio downloads – MP3 Capture and editing - AVI Flash and animation - SWF CD audio playback – CDA, WAV
Things to Consider Identify your user audience
Player compatibility Are they using PC or Mac Offices, Dorms, Computer Labs, Homes Wireless and other mobile devices
Internet Connection Low speed – 28kbps to 80kbps High speed – 80kbps to 300kbps Broadband – 300kbps to 1.0mbps
Audience members Faculty, Students Staff, Dept. Admins, Managers, Directors Anonymous users on WWW
Things to Consider Identify your user audience
Media delivery On-Demand Live Webcasting CD-ROM, DVD
Network User connectivity on or off campus Firewalls, multicast enabled routers
Other Password restrictions E-Commerce Media reports on viewer usage
Confusion Begins And some of the questions might be…..
Where do I go from here? What format do I choose? Is one better quality than another? Can a player work with different formats? Do my viewers need special equipment on their
computer? What hardware and software do I need to make it
all work? What bitrate speeds do I use? What about copyrighted content?
Listen to these two experts make sense of all this confusion
ITSS Streaming Services Providing streaming media services to
the Stanford University community since 1998.
Who are our clients Staff Faculty Students Other authorized Stanford affiliates
ITSS Streaming Service Services we will provide to clients
Initial consultation and development Encoding in multiple formats Authoring for rich media presentations Indexing content for search capabilities Webcasting of live events Hosting Servers for streaming to end-user Other related media production
Format conversions and duplications CD, DVD burning Editing Videotaping (Partnered with Stanford Video)
Some Streaming Examples Teaching and Learning
In and out of the classroom
Administration and Training Informative and promotional for staff,
faculty and students
Research and Special Projects
For Stanford and beyond
Some Streaming Examples Teaching and Learning
In and out of the classroom Streaming of class lectures, live or on-demand Incorporate powerpoint with video, graphics,
animation and more Produce class assignments and tests Create desktop screen captures for specific
instructional topics Include links in course websites for student’s to
review related information
Some Streaming Examples Administration
To support staff, faculty and students Provide information about your department’s
services Enhance staff training with audio/video
instructional elements Make meetings and seminars accessible to
viewers that couldn’t attend the event Communicate your information to users at
their convenience
Some Streaming Examples Research and Special Projects
For Stanford and beyond Make various forms of archive material
available to one or all Preservation of important historical content as
digital archived collections Indexing your content for users to search your
media using keywords Collaborate with other organizations or
institutions on research and learning
How To Get Started? Contact us, then it’s as easy as 1-2-3…
1. We can accept your content in many different formats (VHS, DVCAM, MiniDV, CD, DVD, Betacam, Digital Files, etc).
2. We will encode the content and stream it from our media servers.
3. We will provide you a URL that you can incorporate into your own website.
With free, easy-to-download player software, your users can access your material right from their computers
Streaming Media Options Encoding
Choosing a format Real Media Windows Media Quicktime
Determine a window size(Width x Height in pixels)
160x120 240x180 320x240 Even larger
Streaming Media OptionsWindow Size of 160x120
Streaming Media OptionsWindow Size of 240x180
Streaming Media OptionsWindow Size of 320x240
Streaming Media Options Encoding
Bitrate selection Single rate - 28k, 56k, 120k, 200k, 400k
One stream per bitrate One encoded file for each user’s connect speed One URL for each connect speed
Multirate – (28k-56k-200k) Real - SureStream Windows - Intelligent Stream Quicktime - Alternate Movies One encoded file can reach multiple connect speeds Server finds optimum connect speed and adjusts as
network bandwidth usage changes Only one url needed for all connect speeds Larger file size for archive media
Streaming Media Options Authoring
Include powerpoint slides sync’d to video Insert graphics, images, logos Add URL links to other sites or content Create a URL to play only parts of the media Create a playlist within one URL to stream
multiple clips or media files Set player commands, end-user controls Pop-up or embedded player
Streaming Media Options Indexing
Assign keyframes to your content media Allows you to create smaller segments of
your media and store them as clips Add keywords to clips for users to search
your media from a website Convert speech, closed captioning and ppt
slides to text for searching Save clips in a playlist and share them with
other users
Streaming Media Options Webcasting
Live presentations over the internet One multicast stream to many users Include powerpoint or other rich media
Hosting On demand playback of archived media Multiple streaming server platforms Unlimited streams Low storage costs No impact on your own network No hardware resources to maintain
Streaming Media Rates As of Sep 1, 2003 *setup fees waived depending on services
Encoding $80.00 per content hour, $35.00 Setup fee*
Authoring $95.00 per technician hour
Indexing $45.00 per content hour, $35.00 Setup fee* Indexed database , $10.00 per month
Webcasting $500.00 per content hour, $200.00 Setup fee
Hosting Monthly charge of $0.01 per MB for total size of
streaming files on server, 90 day minimum
Streaming Media Contacts For more information, please contact:
Dominga Zepeda 725-0660 [email protected]
Jeff Bornstein 723-4026 [email protected]
Visit our Streaming Media Website at: http://streamingmedia.stanford.edu