Emblaze-VCON HD3000 Uživatelský manuál Strana 8

  • Stažení
  • Přidat do mých příruček
  • Tisk
  • Strana
    / 8
  • Tabulka s obsahem
  • KNIHY
  • Hodnocené. / 5. Na základě hodnocení zákazníků
Zobrazit stránku 7
Codian MCU Series Version 2.1(1.7) Release Notes
Copyright © Codian Ltd 2007 v1.1 Page 8
Outstanding Limitations and Bugs
Issues when removing the CompactFlash™ during operation
Removing the CompactFlash card while the MCU is in operation has been known to cause a crash.
Windows Media Player
Streaming a conference with Windows Media Player in multiple windows or tabs on the same browser will
crash the browser. This is a known issue with Windows Media Player. If you need to stream more than one
conference simultaneously, use a different player such as QuickTime or Real Player.
In addition, Windows Media Player 11 (WMP11) can display streams incorrectly when used as an embedded
player with browsers other than Internet Explorer. This is a known incompatibility. In some cases, setting the
video size of the main streaming video window (the Video size field in the Streaming page) to Large will
correct the problem. To work around this issue, you can use QuickTime or RealPlayer instead of WMP, or use
Internet Explorer instead of your normal browser.
Tandberg MXP990 can stop sending main video when sending H.239
The MXP990 appears to stop sending video when sending H.239 to the Codian MCU. This only appears to
occur when the MXP is sending H.264 main video to the Codian MCU. This issue is not new in this release.
Streaming to QuickTime7 causes problems with some browsers
Streaming to an embedded QuickTime player using the QuickTime 7.0 plus later option for the Player format
on the MCU can cause certain browsers to crash or remain in the 'negotiating' state indefinitely. Affected
browsers include: IE6; Firefox 1.5 (Mac and PC); Safari 2.0.3 and earlier, and Camino. IE7 and Safari 2.0.4 do
not appear to be affected by this. Using the QuickTime 6.5 plus later option for the Player format on the MCU
will allow streaming to QuickTime using any browser that supports a QuickTime plugin.
Interoperability problems with a VCON HD3000, HD2000 and HD600
No video is received in either direction when connecting to and from the HD3000/HD2000/HD600 running
software version 2.6 using H.263+. The Codian MCU will report 100% frame errors. One possible
workaround is to go to
Settings > Conferences
and disable H.263+ on the MCU; however, this is a unit-
wide setting and therefore may not be appropriate. This problem is being investigated by VCON.
Video issues when Lifesize endpoints change resolution
There is a known bug with the Lifesize endpoints where they show a black "negative-looking” image for ½
second or so every time the endpoint changes transmit resolution. This issue can be partially worked around:
on the MCU go to
Settings > Conferences
and untick the Video receive bitrate optimization check box. This
significantly reduces the number of circumstances in which the Lifesize will change resolution. Lifesize is
investigating this issue.
There is also another known bug with the Lifesize endpoints where they show a black video image for ½
second or so every time the MCU changes the resolution it sends to the Lifesize endpoint. This issue can be
partially worked around: on the MCU go to
Settings > Conferences
and set the "Video transmit size
optimization" to "None". This significantly reduces the number of circumstances in which the MCU will
change resolution. Lifesize is investigating this issue.
Note: these workarounds do have a significant negative impact on the MCU’s performance
Zobrazit stránku 7
1 2 3 4 5 6 7 8

Komentáře k této Příručce

Žádné komentáře