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Streaming Media At UMBC QuickTime™ and aVideo d

Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

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Page 1: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

Streaming MediaAt UMBC

QuickTime™ and aVideo decompressorare needed to see this picture.

Page 2: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

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.

Page 3: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

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)

Page 4: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

The Bandwidth Bottleneck

• Broadband vs Narrowband- Broadband in 10% of homes

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

Page 5: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

Streaming Media Architectures

• Real Networks- 25.9M

• Windows Media- 21.5M

• QuickTime- 7.3M

Jupiter Media Metrix

Page 6: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

Codecs for the Web

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

• Intranet (Broadband)- MPEG 1, 2, 4

Page 7: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

Desktop Video

• Acquire media

• Capture (Digitize)

• Edit and Compress

• Deliver - Stream- DVD/CD-ROM- Tape

Page 8: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

Editing and Compression

• Digital editing - Adobe Premiere- FinalCut Pro- iMovie

• Compression- Cleaner- QuickTime, Real, WindowsMedia

Page 9: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

Delivering Content

• On-demand and Live

• HTTP Streaming

• QuickTime Server

• Real Server (Helix)

• Windows Media

Page 10: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

Streaming at UMBC

• Internet- Real- Quicktime

• Intranet- IPTV- MPEG

Page 11: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

IP/TV Player

• Available on the UMBC Internet CD

• Mac TV

• Content also available on UMBC Streaming Media site

Page 12: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

Streaming at UMBC

Mapping the Patapsco UMBC Magazine

Streaming Umbrella Group

UMBC Music “Listening Room”

ResNET

The Excellent Internet Adventure

Page 13: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

Streaming at UMBC

FINWeb Tutorials

Art History Lectures

FlashCom Server

Page 14: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

Streaming at UMBC

art@radioStreaming Umbrella Group

Page 15: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

Future Directions

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

Faster downloads decrease need for true streaming while increasing streaming audience

Page 16: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

Want to Know More?

Page 18: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

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

Page 19: Streaming Media At UMBC. What is Streaming? True streaming vs. Playback of downloaded filesTrue streaming A steady flow of data to the client -Buffered

Capturing Media

• Capture Cards

• FireWire (IEEE-1394)

• Analog/Digital Converters