Retrieving and Setting Recording Conditions
INFINICAM UC SDK Retrieving and Setting Recording Conditions
After opening the device, check the device status and configure settings as needed.
Retrieving the frame rate and shutter speed
PUCRESULT result;
UINT32 nFramerate, nShutterFps;
result = PUC_GetFramerateShutter(hDevice, &nFramerate, &nShutterFps);
if (PUC_CHK_FAILED(result))
{
return;
}
Configuring the frame rate and shutter speed
Set the frame rate to 1,000 fps and the shutter speed to 1/2,000 fps.
PUCRESULT result;
result = PUC_SetFramerateShutter(hDevice, 1000, 2000);
if (PUC_CHK_FAILED(result))
{
return;
}
※ Changing the frame rate will change the resolution to the maximum resolution for the set frame rate.
Configuring the resolution
Set the resolution to 1246 px × 800 px.
result = PUC_SetResolution(hDevice, 1246, 800);
if (PUC_CHK_FAILED(result))
{
return;
}
※ You can retrieve resolution settings that can be set for the current frame rate with PUC_GetMaxResolution.
※ The vertical and the horizontal resolution has each mimimum limitation unit (not by 1 pixel) for setting value. These units can be retrieved with PUC_GetResolutionLimit.
Configuring the exposure
Acquires the minimum exposure / non-exposure time that can be set in nsec units.
UINT32 nMinExpOnTime, nMinExpOffTime;
result = PUC_GetMinExpsoeTime(hDevice, &nMinExpOnTime, &nMinExpOffTime)
if (PUC_CHK_FAILED(result))
{
return;
}
Set open shutter (equivalent to about 1,000,000nsec) at 1,000fps, do as follows.
UINT32 nExpOpen = 1000000 – nMinExpOffTime;
result = PUC_SetExposeTime(hDevice, nExpOpen, nMinExpOffTime)
if (PUC_CHK_FAILED(result))
{
return;
}
※Due to internal calculation, an error of up to 12nsec will occur.
※Note that the return value of PUC_GetFramerateShutter function will be invalid if the exposure/non-exposure time is set directly with this function.
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