freeing a locked data buffer

[mondi]

Hey all .. new member here !!

I have a question thats been irking me all night ..

Im writing a video capture proggy, using the vfw interface ... specifically: capCaptureSequenceNoFile

well this calls a callback with a structure VIDEOHDR with a data member - lpData .. a locked data buffer, with the stream info.


problem is, while i can access the data fine etc... it quickly builds in size (720*480*3*30 frames a sec = approx 31 megs a second ..bytes a sec. ...

is there a way I can free the associated memory so it doesnt build up ?? i have used both 'delete' and 'free()' to little avail ...

thanks in advance (hopefully )

mondi

[graham.edmon]

use

capCaptureStop(capturewindow);
capSetCallbackOnVideoStream(capturewindow, NULL);

no way of releasing memory while a capture is taking place, as far as I know.

v

Hey all .. new member here !!

I have a question thats been irking me all night ..

Im writing a video capture proggy, using the vfw interface ... specifically: capCaptureSequenceNoFile

well this calls a callback with a structure VIDEOHDR with a data member - lpData .. a locked data buffer, with the stream info.


problem is, while i can access the data fine etc... it quickly builds in size (720*480*3*30 frames a sec = approx 31 megs a second ..bytes a sec. ...

is there a way I can free the associated memory so it doesnt build up ?? i have used both 'delete' and 'free()' to little avail ...

thanks in advance (hopefully )

mondi

[mondi]

thanks much, will try that .. shame as i can only do 30 secs or so before it fills my ram, oh well

use

capCaptureStop(capturewindow);
capSetCallbackOnVideoStream(capturewindow, NULL);

no way of releasing memory while a capture is taking place, as far as I know.

v