// snap and save a frame from the camera
void CameraSnap()
{
if(!PvCaptureQueueFrame(GCamera.Handle,&(GCamera.Frame),NULL))
{
printf("waiting for a frame ...\n");
while(PvCaptureWaitForFrameDone(GCamera.Handle,&(GCamera.Frame),1500) == ePvErrTimeout)
printf("still waiting ...\n");
if(GCamera.Frame.Status == ePvErrSuccess)
{
sprintf(GCamera.Filename,"./snap%04lu.tiff",++GCamera.Counter);
if(!ImageWriteTiff(GCamera.Filename,&(GCamera.Frame)))
printf("Failed to save the grabbed frame!");
else
printf("frame saved\n");
}
else
if(GCamera.Frame.Status != ePvErrCancelled)
printf("the frame failed to be captured ... %u\n",GCamera.Frame.Status);
}
else
printf("failed to enqueue the frame\n");
}
// trigger and save a frame from the camera
// return value: true == success, false == fail
bool CameraSnap()
{
tPvErr errCode = ePvErrSuccess;
//wait for frame to return from camera to host
printf("Waiting for SyncIn1 trigger input");
while(!GCamera.Abort && ((errCode = PvCaptureWaitForFrameDone(GCamera.Handle,&(GCamera.Frame),800)) == ePvErrTimeout))
printf(".");
printf("\n");
if(errCode != ePvErrSuccess || GCamera.Abort)
{
//likely camera unplugged
GCamera.Abort = true;
return false;
}
//check returned Frame.Status
if(GCamera.Frame.Status == ePvErrSuccess)
{
sprintf_s(GCamera.Filename,sizeof(GCamera.Filename),"./snap%04lu.tiff",++GCamera.Counter);
//save image
if(!ImageWriteTiff(GCamera.Filename,&(GCamera.Frame)))
{
printf("ImageWriteTiff fail.\n");
GCamera.Abort = true;
return false;
}
printf("snap%04lu.tiff saved.\n", GCamera.Counter);
}
else
{
if (GCamera.Frame.Status == ePvErrDataMissing)
printf("Dropped packets. Possible improper network card settings:\nSee GigE Installation Guide.");
else
printf("Frame.Status error: %u\n",GCamera.Frame.Status);
}
//requeue frame
if((errCode = PvCaptureQueueFrame(GCamera.Handle,&(GCamera.Frame),NULL)) != ePvErrSuccess)
{
printf("PvCaptureQueueFrame err: %u\n", errCode);
GCamera.Abort = true;
return false;
}
return true;
}
// snap and save a frame from the camera
void CameraSnap(tCamera* Camera)
{
if(!PvCaptureQueueFrame(Camera->Handle,&(Camera->Frame),NULL))
{
printf("waiting for the frame to be done ...\n");
while(PvCaptureWaitForFrameDone(Camera->Handle,&(Camera->Frame),100) == ePvErrTimeout)
printf("still waiting ...\n");
if(Camera->Frame.Status == ePvErrSuccess)
{
if(!ImageWriteTiff("./snap.tiff",&(Camera->Frame)))
printf("Failed to save the grabbed frame!");
else
printf("frame saved\n");
}
else
printf("the frame failed to be captured ...\n");
}
else
printf("failed to enqueue the frame\n");
}