home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!digex.com!intercon!udel!darwin.sura.net!newsserver.jvnc.net!gmd.de!Germany.EU.net!mcsun!julienas!sophia!jerry.inria.fr!turletti
- From: turletti@jerry.inria.fr (Thierry Turletti)
- Newsgroups: comp.groupware
- Subject: New version of IVS now available
- Keywords: videoconferencing, H.261 CODEC
- Message-ID: <39638@sophia.inria.fr>
- Date: 27 Jan 93 17:30:36 GMT
- Sender: news@sophia.inria.fr
- Organization: INRIA, Sophia-Antipolis (Fr)
- Lines: 90
-
- Version 2.1 of IVS is now available from avahi.inria.fr in the file
- /pub/videoconference/ivs.tar.Z.
-
- The INRIA Videoconferencing System (IVS) is a tool to support
- audio and video conferences over the Internet. It includes a
- software codec, a dynamic admission control mechanism integrated
- in the codec, and a protocol to manage the participants in a
- videoconference (e.g. add a new participant to a conference
- already in progress).
-
- This version includes a lot of changes & improvements. Here are the main
- changes:
-
- * All Motif calls have been removed. Now, the Athena toolkit is used.
- A scrollbar is used to display the list of participants. (The
- previous display was not very fast...) This list of participants
- begins first with your local station, the active stations and then,
- the passive stations.
-
- * A rate control option for video data is added. Two possibility of
- control are available:
-
- - Privilege Quality - In this mode, the frame rate is reduced in
- order not to overrun the maximum rate
- selected. Useful for still images...
-
- - Privilege frame rate - In this mode, no delay is added. The
- control rate is done using the quantizer and
- the movement detection's threshold. These
- parameters are dynamically
- chosen to fit in
- the bandwidth selected.
-
-
- * IVSD (IVS daemon) added. Running it in background allows
- you to be called by anyone on the Internet. A small icon will
- appear and a message will pop up when an ivs talk is requested. If
- you click on the "Accept" option, an ivs command will be run
- automatically towards your party. For example, if you want to call
- asterix@obelix.fr, just run ivs obelix.fr
- Then, if you click on the "Call up" button, the ivs request is
- sent to the obelix.fr host. If you click on the icon, you will be
- able to initiate an IVS session in unicast or multicast mode.
-
- * A new button allows to freeze the image.
-
- * Now, local display selection, audio encoding mode and VideoPix port
- input may be changed during encoding.
-
- * The audio driver is now automatically closed when there is no audio
- data encoding/decoding.
-
- * The video bandwidth and the frame rate are now displayed at the
- encoder side.
-
- * Speed improvements
-
- * Port numbers are now differents in unicast mode. In this way an
- unicast call may be done during a multicast conference.
-
- * Video and audio decoding options are now implicit except for
- your local station. To disable this mode, use the -a|-v options
- (see manual).
-
- * IVS is now supporting :
-
- # SPARCSTATIONS (audio + video)
- --> VideoPix framegrabber
- --> Parallax framegrabber [Thanks to Edgar Ostrowski and
- Frank Ruge]
-
- # SGI (audio + video) [Thanks to Guido van Rossum]
-
- # HP (audio + video)
- --> Raster Rops framegrabber [Thanks to Edgar Ostrowski,
- Frank Ruge and Markus Rebensburg]
-
- # DECSTATIONS (only video decoding ...)
-
-
- Note that in the same ftp-site, a report ivs_report.ps.Z describes the
- previous version.
-
- Hope that you will appreciate this new version,
-
-
- Thierry Turletti.
-
- --
- Thierry Turletti - Project RODEO - INRIA sophia-Antipolis - FRANCE
-