Image Grabbing - ADLINK Technology RTV Series User Manual

5.5 Image Grabbing

@ Name
AngeloRTV_Capture_Start(PortNo, CaptureNo)
Start to grab the video image
AngeloRTV_Select_Channel(PortNo, Multiplex)
Channel extension of video signal, for advanced only
AngeloRTV_Capture_Stop(PortNo)
Stop to grab the video image
AngeloRTV_Capture_Config(PortNo, Start_Field)
Set the starting field of image
AngeloRTV_Sync_Grab(PortNo, Start_Address, Width, Height,
Size_Byte)
Get an image frame with start address of memory
@ Description
AngeloRTV_Capture_Start:
Continuously captures video frames and stops when the total
frame number equals the "CaptureNo" parameter. The frame
update rate is 30 frames/sec. If the "CaptureNo" is 0xFFFFFFFF,
the frame
"AngeloRTV_Capture_Stop" function is called.
AngeloRTV_Capture_Stop:
Stop grabbing video frames.
AngeloRTV_Select_Channel:
Angelo series cards are capable of channel extension. This func-
tion is used to multiplex video signals for the ports. In most cases
using this function should not be required because the default set-
ting is one port is dedicated to one channel.
Note: Do not call this function if there is no channel extension
board in the system.
AngeloRTV_Capture_Config:
Chooses the starting field of image.
AngeloRTV_Sync_Grab:
This is a synchronous image grabbing function to get an image
frame. Retrieve the memory start address from the frame data,
width, height, and size in bytes of the image.
100
grabbing will not stop until
Function Library
the