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4 Release Notes for IP/TV Viewer Release 3.0
Limitations and Restrictions
Limitations and Restrictions
• DirectX foundation must be installed before you install Optibase VideoPlex XPress
driver. DirectX foundation can be found on the VideoPlex XPress CD under
\DirectX6.0\DirectX Foundation\ directory.
• If youare installing theOptibase VideoPlex XPressMPEG decoderboard, you mustuse
the latest driver installation image included in this CD under \Optibase\VPXpress after
you install DirectX foundation.
• When using the Optibase VideoPlex XPress MPEG decoder card with the IP/TV
Viewer, the fullscreen mode works only on Win95 or Win98 when the VideoPlex
XPress is in the VPE mode and used in conjunction with an ATI VGA card.
• The Printing program listing is not supported.
• Minimum requirements are: 100-MHz Pentium processor (133-MHz for MPEG1,
300-MHz for MPEG2 at 3 Mbps,400-MHz for MPEG2 at 6 Mbps). Frame rate may
vary depending on your VGA adapter and network interface card.
• The DSP Group Truespeech ACM codec is not capable of handling packet loss and is
unsuitable for streaming inthe IP/TV environment. Audio distortion occursafter tuning
in for a long period of time (greater than24 hours). Once the audio problem occurs, you
must close the program and retune into the same program.
• Indeo codecs are not supplied with IP/TV. You can download them from the following
website if needed:
http://developer.intel.com/ial/indeo/video/driver.htm
• When viewing a program containing a video stream, The Edit>Copy Image menu item
in the client video window may result in a blank image copied to the clipboard. This
problem is due to limitations in some graphics cards and video codecs.
• When using the Optibase VideoPlex XPress to watch video over a long period of time,
on some PCs the video may eventually break up into a blocky static. This problem is a
result of a bug in the hardware of the Optibase card.
• The Optibase Live Capture Video Card is not supported on Windows 95 for the Demo
Server.