| Re: avi driver, IDL5.5, WinXP Pro sp1 [message #32600 is a reply to message #32572] |
Mon, 21 October 2002 09:51  |
Rick Towler
Messages: 821
Registered: August 1998
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Senior Member |
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The error you are seeing is a result of a failed call to
AVIStreamGetFrameOpen.
From the MSDN Library:
"If the system cannot find a decompressor that can decompress the stream to
the given format, or to any RGB format, the function returns NULL."
My guess is that the codec used which is present on your Win98 and XP home
machine is not available on the XP Pro machine. Compare control
panel->sounds and multimedia->hardware->video codecs (select video codecs
and hit properties). This will display the codecs that are available to VFW
on each machine.
If they look the same, try creating a very short full frame (non-compressed)
avi (using Ronn's example program, just hack it so it brings up the config
window). If that doesn't work, than maybe there was a change to the VFW
libs and the .dlm will need to be recompiled.
-Rick
"piggie_gp" <piggie_gp@hotmail.com> wrote
> Hi,
>
> I am having trouble with the IDL5.5 avi driver from kilvarock under
> WinXP Pro service pack 1. In this setting, the avi driver can not read
> the avi files which can be read under Win98SE, or WinXP Home(not sp1),
> also IDL5.5.
>
> Here is the error message:
>
> % Loaded DLM: IDL_AVI.
> % AVI_OPENR: Unable to get frames at all
>
>
> Is there a solution to this? Thank you.
>
> piggie_gp
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