Streaming MediaAt UMBC

QuickTime™ and aVideo decompressorare needed to see this picture.

What is Streaming?

• True streaming vs. Playback of downloaded files

• A steady flow of data to the client- Buffered data - Bitrate of the stream must exceed the rate

at which it is played out.

Streaming Media in the Corporate World

• 25% large companies currently using streaming- Advertising, branding, corporate

communications and training

• Use doubled in 18 month period 2000-2001 (eBiz Oct. 2001)

The Bandwidth Bottleneck

• Broadband vs Narrowband- Broadband in 10% of homes

• Reduce bandwidth by- Reducing frame rate- Reducing resolution- Compression (codecs)

Streaming Media Architectures

• Real Networks- 25.9M

• Windows Media- 21.5M

• QuickTime- 7.3M

Jupiter Media Metrix

Codecs for the Web

• Internet (Narrowband)- Real SureStream- Sorenson (Quicktime)

• Intranet (Broadband)- MPEG 1, 2, 4

Desktop Video

• Acquire media

• Capture (Digitize)

• Edit and Compress

• Deliver - Stream- DVD/CD-ROM- Tape

Editing and Compression

• Digital editing - Adobe Premiere- FinalCut Pro- iMovie

• Compression- Cleaner- QuickTime, Real, WindowsMedia

Delivering Content

• On-demand and Live

• HTTP Streaming

• QuickTime Server

• Real Server (Helix)

• Windows Media

Streaming at UMBC

• Internet- Real- Quicktime

• Intranet- IPTV- MPEG

IP/TV Player

• Available on the UMBC Internet CD

• Mac TV

• Content also available on UMBC Streaming Media site

Streaming at UMBC

Mapping the Patapsco UMBC Magazine

Streaming Umbrella Group

UMBC Music “Listening Room”

ResNET

The Excellent Internet Adventure

Streaming at UMBC

FINWeb Tutorials

Art History Lectures

FlashCom Server

Streaming at UMBC

art@radioStreaming Umbrella Group

Future Directions

• Uniform Serving?- Helix- Mpeg4- Simplified content creation- Broadband

Faster downloads decrease need for true streaming while increasing streaming audience

Want to Know More?

Contact

shewbrid@umbc.edu

www.umbc.edu/iptv

www.umbc.edu/studio

Accessibility

• (6) Support Universal Accessibility to Streaming Media:

• Effective design of streaming media content will need to consider and address the provision of

• closed-captioning (for persons with hearing impairments), descriptive audio tracks (for persons

• with blindness) and other Web accessibility components. In addition to aiding persons with

• hearing impairments, closed captioning also has the potential to provide improved indexing and

• searching of content

Capturing Media

• Capture Cards

• FireWire (IEEE-1394)

• Analog/Digital Converters