bob riddle, internet2 24 march 2004 bigvideo project internet2/researchchannel dv/ip - dv over the...
TRANSCRIPT
Bob Riddle, Internet2
24 March 2004
BigVideo Project Internet2/ResearchChannel
DV/IP - DV over the Internet
What if you could use your HandiCam for Video Conferencing or for “broadcasting” events?
you could send & receive High Quality A/V• It doesn’t require funny, expensive machines• It doesn’t require involve IP issues (royalties)• It doesn’t require funny, expensive cameras• It does require a network capable of 30 mpbs
all you need is a capable Network and …• a DV capable camera (HandiCam, DVCAM, DVCPro) with
IEEE1394 (firewire) capability• DV receiver (DV Player, TV) that is firewire capable• Or an analog/digital converter(s) if using a non-firewire
capable camera/receiver
It looks like this:
Other things you might do …
Korean Dance Performance: Sept 7,2003
Other things you might do …
National Internet2 Day• Several schools used DV/IP stream
Fall Member Meeting• instrumental rehearsal (museum, IU, CIM)
Video “Conference”• Both P2P and multipoint (using multicast)• Master’s Class – music instruction• Internet2 “Channel” Guide• Access Grid integration (APAN work)
where does DV/IP live in the video “neighborhood”?
H.323 – How is it different?• Multicast use removes need for MCU• Higher quality, lower latency a/v streams
Access Grid – can I use it with my AG?• Current integration work underway (APAN/ANU)
MPEG2 – why not just use mpeg2?• No “IP” encumbrance, Higher quality, lower latency a/v
streams
HDTV - why not just use HDTV?• Lower latency than compressed (20mbps) HDTV stream• Lower bandwidth than uncompressed HDTV stream
“Sweet spot” – if you have the bandwidth
How can I get started?
DVTS• Software encoding/decoding using the PC
processor, NIC, etc.• Runs on number of platform, though
Windows XP has the best GUI and uses PC monitor for display
• Requires a firewire card if you are a “sender” (and receiver for non-WinXP)
• Provided by DVTS Consortium & WIDE project http://www.sfc.wide.ad.jp/DVTS
CometDVIP• Hardware implementation from Fujitsu Labs• Allows a “blackbox” like device to support
DV/IP• Current video conferencing tests have been
remarkable
How can I get started (-cont-)
take advantage of the “bigvideo” project work
http://people.internet2.edu/~bdr/CometDVIP
How can I get started (-cont-)
mailto: [email protected]
take advantage of the bigvideo mailing list
How can I get started (-cont-)
Take advantage of the DVGuide “Channel” GUIDE
http://people.internet2.edu/~bdr/dvguide.html
How can I get started (-cont-)
Multicast-enable your network• 30 mbps stream – for “broadcast” events the unicast client/server model won’t scale on your network
• Use a tunnel, if you need to “bridge” multicast challenged networks (http://if.anu.edu.au/SW/rcbridge.html)
• Take advantage of available multicast expertise [email protected] (subscribe wg-multicast in body)
• Find some useful tools & test, test, test http://dast.nlanr.net/Projects/Beacon/ http://dast.nlanr.net/Projects/Iperf/
What’s going on with DV/IP right now?
Video-Conferencing exploration• Integrate echo-cancellation device
• “build” a blackbox to support plug & play users
• “build” an AG-like machine/environment (working with APAN/Korea AG 2.1 efforts
• “enhance” clients for non-technical users
Streaming exploration• Exploring lip-sync problems related to WinXP clients syncing
( memory mapped VGA buffers … Radeon 9800 Pro XT)
• Potential OS X desktop client
• Improvement of “xdvshow” client for Linux clients
What’s going on in related areas?Desktop iHDTV
“One of the major goals of the ResearchChannel/I2 Working group is to broaden access to HDTV-quality resources over the Internet. The intent is to deliver "realism" to the desktop and create opportunities for new learning environments.
ResearchChannel is pleased to announce progress and success in the delivery of HDTV over IP to your personal computer.
Following in the footsteps of other ResearchChannel projects, including delivering studio-quality HD at 270Mbps, this lower bandwidth project at broadcast-quality HD (19.2Mbps) brings new possibilities for learning and other advanced applications using streaming video technologies.”
Source: http://www.researchchannel.org/projects/i2wg/prj_ihdtv.asp
What’s going on … (-cont-)
Freely available client’s …
(Raise your hand if you’d like to spend a few minutes working on some code …)
Come “play” with us!
Join the DVTS Consortium• http://www.dvts.jp/en/
Get the DVTS software• http://www.sfc.wide.ad.jp/DVTS
Purchase a CometDVIP card• [email protected]
Join the [email protected] project• [email protected]• [email protected]
