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Multiple calls to createinstance
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daniele....@newvision.it
Jan 22, 2010, 2:43:52 AM1/22/10
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Hi all,
I have a virtual device based on Vivek's VCam that works as intended
when opened from amcap.
If I open it from the flash app it was crated for there are problems.
When debugging the code I noticed that after the
CClassFactory::CreateInstance returns it is called again.. and again
(I think this stops after four or five times).
I'm no directshow expert, so it's quite possible I'm doing something
stupid.
The strange thing is that amcap spawns only an instance of the
device...
I have a virtual device based on Vivek's VCam that works as intended
when opened from amcap.
If I open it from the flash app it was crated for there are problems.
When debugging the code I noticed that after the
CClassFactory::CreateInstance returns it is called again.. and again
(I think this stops after four or five times).
I'm no directshow expert, so it's quite possible I'm doing something
stupid.
The strange thing is that amcap spawns only an instance of the
device...
daniele....@newvision.it
Jan 22, 2010, 6:20:17 AM1/22/10
to
On Jan 22, 8:43 am, "daniele.bette...@newvision.it"
Ok, I read somewhere that someone else got the same thing happening...
Guess I'll have to deal with it. Anyone have a clue on why on flash
there are four instantiation calls?
rep_movsd
Feb 18, 2010, 1:18:59 PM2/18/10
to
A lot of applications do that multiple instantiation thing...
WMEncoder for example creates and destroys the device 5 times or so,
so if you set properties on a source filter that are not persistent,
they are lost when the filter is created for the last time.
WMEncoder for example creates and destroys the device 5 times or so,
so if you set properties on a source filter that are not persistent,
they are lost when the filter is created for the last time.
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