LEADTOOLS Support
Imaging
Imaging SDK Questions
how to grab an image while grabbing to a file?
This topic and its replies were posted before the current version of LEADTOOLS was released and may no longer be applicable.
#21
Posted
:
Tuesday, October 31, 2006 5:51:20 AM(UTC)
Groups: Registered
Posts: 19
Sorry, I have been busy on another project in the meanwhile.
I tried the filter graph (Falcon filter - avi mux - file writer)
I got a 29 fps video...
seems that the driver is not working correctly
thx a lot
#22
Posted
:
Wednesday, November 1, 2006 12:48:29 AM(UTC)
Groups: Guests
Posts: 3,022
Was thanked: 2 time(s) in 2 post(s)
You can try using the "LEAD Video Frame Rate
Controller Filter (2.0)" which provides the ability to change the frame
rate of the passing video stream.
You can find information on how to implement this
filter in our Multimedia help files
#23
Posted
:
Thursday, November 9, 2006 9:22:07 AM(UTC)
Groups: Registered
Posts: 19
mhm..this would rather lead into less performance...
anyway
is there a possibility to set the video capture size (like 768*576 for PAL) through the CaptureControl interface or any other LEADTOOLS API interface, or only through the capture device options menu provided by the manufacturer.
Theres a CaptureSizes property available, but its read only and the _enum property throws a "NotImplemented" Exception
thx
#24
Posted
:
Thursday, November 9, 2006 11:49:32 AM(UTC)
Groups: Registered, Tech Support, Administrators
Posts: 764
You cannot change the incoming size of the video data, you can only use what the device supports and thus the properties are read only. You will have to use the Video Resize Filter in order to get a screen size that is not supported by your device.
#25
Posted
:
Wednesday, November 22, 2006 4:52:38 AM(UTC)
Groups: Registered
Posts: 19
Usually it takes a long time to start the capture process with captureCtrl.StartCapture().
I am using the callback filter already to store the images in an array of Rasterimages. Is it possible to write those images (on a callback event) directly into an avi file without using the "StartCapture" method?
I have already searched the help files and demos for examples, but found nothing.
#26
Posted
:
Wednesday, November 22, 2006 6:15:04 AM(UTC)
Groups: Registered, Tech Support, Administrators
Posts: 764
No, you will need to start the capture process with the StartCapture Method.
LEADTOOLS Support
Imaging
Imaging SDK Questions
how to grab an image while grabbing to a file?
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