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Merge pull request #3322 from StevenPuttemans:fix_pvpapi_interface

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pull/3414/head
Vadim Pisarevsky 10 years ago
parent 3da1144cef 7dce2d0b8f
commit e05a0bc6c5
2 changed files with 142 additions and 106 deletions
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  1. 212
      modules/highgui/src/cap_pvapi.cpp
  2. 36
      samples/cpp/videocapture_pvapi.cpp

212
modules/highgui/src/cap_pvapi.cpp
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@ -139,124 +139,125 @@ void CvCaptureCAM_PvAPI::close()
}
// Initialize camera input
bool CvCaptureCAM_PvAPI::open( int index )
bool CvCaptureCAM_PvAPI::open( int )
{
tPvCameraInfo cameraList[MAX_CAMERAS];
tPvCameraInfo camInfo;
tPvIpSettings ipSettings;
// Initialization parameters [500 x 10 ms = 5000 ms timeout]
int initializeTimeOut = 500;
if (PvInitialize()) {
}
//return false;
// Disregard any errors, since this might be called several times and only needs to be called once or it will return an
// Important when wanting to use more than 1 AVT camera at the same time
PvInitialize();
Sleep(1000);
while((!PvCameraCount()) && (initializeTimeOut--))
Sleep(10);
//close();
if (!initializeTimeOut){
fprintf(stderr,"ERROR: camera intialisation timeout [5000ms].\n");
return false;
}
int numCameras=PvCameraList(cameraList, MAX_CAMERAS, NULL);
unsigned int numCameras = PvCameraList(cameraList, MAX_CAMERAS, NULL);
if (numCameras <= 0 || index >= numCameras)
// If no cameras are found
if(!numCameras)
{
fprintf(stderr, "ERROR: No cameras found.\n");
return false;
}
Camera.UID = cameraList[index].UniqueId;
if (!PvCameraInfo(Camera.UID,&camInfo) && !PvCameraIpSettingsGet(Camera.UID,&ipSettings)) {
/*
struct in_addr addr;
addr.s_addr = ipSettings.CurrentIpAddress;
printf("Current address:\t%s\n",inet_ntoa(addr));
addr.s_addr = ipSettings.CurrentIpSubnet;
printf("Current subnet:\t\t%s\n",inet_ntoa(addr));
addr.s_addr = ipSettings.CurrentIpGateway;
printf("Current gateway:\t%s\n",inet_ntoa(addr));
*/
// Try opening the cameras in the list, one-by-one until a camera that is not used is found
unsigned int findNewCamera;
for(findNewCamera=0; findNewCamera<numCameras; findNewCamera++)
{
Camera.UID = cameraList[findNewCamera].UniqueId;
if(PvCameraOpen(Camera.UID, ePvAccessMaster, &(Camera.Handle))==ePvErrSuccess)
break;
}
else {
fprintf(stderr,"ERROR: could not retrieve camera IP settings.\n");
if(findNewCamera == numCameras)
{
fprintf(stderr, "Could not find a new camera to connect to.\n");
return false;
}
if(PvCameraIpSettingsGet(Camera.UID,&ipSettings)==ePvErrNotFound)
{
fprintf(stderr, "The specified camera UID %lu could not be found, PvCameraIpSettingsGet().\n", Camera.UID);
return false;
}
if (PvCameraOpen(Camera.UID, ePvAccessMaster, &(Camera.Handle))==ePvErrSuccess)
if(PvCameraInfo(Camera.UID,&camInfo)==ePvErrNotFound)
{
fprintf(stderr, "The specified camera UID %lu could not be found, PvCameraInfo().\n", Camera.UID);
return false;
}
//Set Pixel Format to BRG24 to follow conventions
/*Errcode = PvAttrEnumSet(Camera.Handle, "PixelFormat", "Bgr24");
if (Errcode != ePvErrSuccess)
{
fprintf(stderr, "PvAPI: couldn't set PixelFormat to Bgr24\n");
return NULL;
}
*/
tPvUint32 frameWidth, frameHeight, frameSize;
unsigned long maxSize;
char pixelFormat[256];
PvAttrUint32Get(Camera.Handle, "TotalBytesPerFrame", &frameSize);
PvAttrUint32Get(Camera.Handle, "Width", &frameWidth);
PvAttrUint32Get(Camera.Handle, "Height", &frameHeight);
PvAttrEnumGet(Camera.Handle, "PixelFormat", pixelFormat,256,NULL);
maxSize = 8228;
//PvAttrUint32Get(Camera.Handle,"PacketSize",&maxSize);
if (PvCaptureAdjustPacketSize(Camera.Handle,maxSize)!=ePvErrSuccess)
return false;
if (strcmp(pixelFormat, "Mono8")==0) {
grayframe = cvCreateImage(cvSize((int)frameWidth, (int)frameHeight), IPL_DEPTH_8U, 1);
grayframe->widthStep = (int)frameWidth;
frame = cvCreateImage(cvSize((int)frameWidth, (int)frameHeight), IPL_DEPTH_8U, 3);
frame->widthStep = (int)frameWidth*3;
Camera.Frame.ImageBufferSize = frameSize;
Camera.Frame.ImageBuffer = grayframe->imageData;
}
else if (strcmp(pixelFormat, "Mono16")==0) {
grayframe = cvCreateImage(cvSize((int)frameWidth, (int)frameHeight), IPL_DEPTH_16U, 1);
grayframe->widthStep = (int)frameWidth;
frame = cvCreateImage(cvSize((int)frameWidth, (int)frameHeight), IPL_DEPTH_16U, 3);
frame->widthStep = (int)frameWidth*3;
Camera.Frame.ImageBufferSize = frameSize;
Camera.Frame.ImageBuffer = grayframe->imageData;
}
else if (strcmp(pixelFormat, "Bgr24")==0) {
frame = cvCreateImage(cvSize((int)frameWidth, (int)frameHeight), IPL_DEPTH_8U, 3);
frame->widthStep = (int)frameWidth*3;
Camera.Frame.ImageBufferSize = frameSize;
Camera.Frame.ImageBuffer = frame->imageData;
}
else
return false;
// Start the camera
PvCaptureStart(Camera.Handle);
tPvUint32 frameWidth, frameHeight, frameSize;
char pixelFormat[256];
PvAttrUint32Get(Camera.Handle, "TotalBytesPerFrame", &frameSize);
PvAttrUint32Get(Camera.Handle, "Width", &frameWidth);
PvAttrUint32Get(Camera.Handle, "Height", &frameHeight);
PvAttrEnumGet(Camera.Handle, "PixelFormat", pixelFormat,256,NULL);
// Set the camera to capture continuously
if(PvAttrEnumSet(Camera.Handle, "AcquisitionMode", "Continuous")!= ePvErrSuccess)
{
fprintf(stderr,"Could not set Prosilica Acquisition Mode\n");
return false;
}
// Start the camera
PvCaptureStart(Camera.Handle);
if(PvCommandRun(Camera.Handle, "AcquisitionStart")!= ePvErrSuccess)
{
fprintf(stderr,"Could not start Prosilica acquisition\n");
return false;
}
// Set the camera explicitly to capture data frames continuously
if(PvAttrEnumSet(Camera.Handle, "AcquisitionMode", "Continuous")!= ePvErrSuccess)
{
fprintf(stderr,"Could not set Acquisition Mode\n");
return false;
}
if(PvAttrEnumSet(Camera.Handle, "FrameStartTriggerMode", "Freerun")!= ePvErrSuccess)
{
fprintf(stderr,"Error setting Prosilica trigger to \"Freerun\"");
return false;
}
if(PvCommandRun(Camera.Handle, "AcquisitionStart")!= ePvErrSuccess)
{
fprintf(stderr,"Could not start acquisition\n");
return false;
}
if(PvAttrEnumSet(Camera.Handle, "FrameStartTriggerMode", "Freerun")!= ePvErrSuccess)
{
fprintf(stderr,"Error setting trigger to \"Freerun\"");
return false;
}
return true;
// Settings depending on the pixelformat
// This works for all AVT camera models that use the PvAPI interface
if (strcmp(pixelFormat, "Mono8")==0) {
monocrome = true;
grayframe = cvCreateImage(cvSize((int)frameWidth, (int)frameHeight), IPL_DEPTH_8U, 1);
grayframe->widthStep = (int)frameWidth;
Camera.Frame.ImageBufferSize = frameSize;
Camera.Frame.ImageBuffer = grayframe->imageData;
}
else if (strcmp(pixelFormat, "Mono16")==0) {
monocrome = true;
grayframe = cvCreateImage(cvSize((int)frameWidth, (int)frameHeight), IPL_DEPTH_16U, 1);
grayframe->widthStep = (int)frameWidth*2;
Camera.Frame.ImageBufferSize = frameSize;
Camera.Frame.ImageBuffer = grayframe->imageData;
}
else if (strcmp(pixelFormat, "Bgr24")==0) {
monocrome = false;
frame = cvCreateImage(cvSize((int)frameWidth, (int)frameHeight), IPL_DEPTH_8U, 3);
frame->widthStep = (int)frameWidth*3;
Camera.Frame.ImageBufferSize = frameSize;
Camera.Frame.ImageBuffer = frame->imageData;
}
else{
fprintf(stderr, "Pixel format %s not supported; only Mono8, Mono16 and Bgr24 are currently supported.\n", pixelFormat);
return false;
}
fprintf(stderr,"Error cannot open camera\n");
return false;
return true;
}
bool CvCaptureCAM_PvAPI::grabFrame()
{
//if(Camera.Frame.Status != ePvErrUnplugged && Camera.Frame.Status != ePvErrCancelled)
return PvCaptureQueueFrame(Camera.Handle, &(Camera.Frame), NULL) == ePvErrSuccess;
}
@ -266,7 +267,6 @@ IplImage* CvCaptureCAM_PvAPI::retrieveFrame(int)
if (PvCaptureWaitForFrameDone(Camera.Handle, &(Camera.Frame), 1000) == ePvErrSuccess) {
if (!monocrome) {
cvMerge(grayframe,grayframe,grayframe,NULL,frame);
return frame;
}
return grayframe;
@ -287,26 +287,26 @@ double CvCaptureCAM_PvAPI::getProperty( int property_id )
PvAttrUint32Get(Camera.Handle, "Height", &nTemp);
return (double)nTemp;
case CV_CAP_PROP_EXPOSURE:
PvAttrUint32Get(Camera.Handle,"ExposureValue",&nTemp);
return (double)nTemp;
PvAttrUint32Get(Camera.Handle,"ExposureValue",&nTemp);
return (double)nTemp;
case CV_CAP_PROP_FPS:
tPvFloat32 nfTemp;
tPvFloat32 nfTemp;
PvAttrFloat32Get(Camera.Handle, "StatFrameRate", &nfTemp);
return (double)nfTemp;
case CV_CAP_PROP_PVAPI_MULTICASTIP:
char mEnable[2];
char mIp[11];
PvAttrEnumGet(Camera.Handle,"MulticastEnable",mEnable,sizeof(mEnable),NULL);
if (strcmp(mEnable, "Off") == 0) {
return -1;
}
else {
long int ip;
int a,b,c,d;
PvAttrStringGet(Camera.Handle, "MulticastIPAddress",mIp,sizeof(mIp),NULL);
sscanf(mIp, "%d.%d.%d.%d", &a, &b, &c, &d); ip = ((a*256 + b)*256 + c)*256 + d;
return (double)ip;
}
char mEnable[2];
char mIp[11];
PvAttrEnumGet(Camera.Handle,"MulticastEnable",mEnable,sizeof(mEnable),NULL);
if (strcmp(mEnable, "Off") == 0) {
return -1;
}
else {
long int ip;
int a,b,c,d;
PvAttrStringGet(Camera.Handle, "MulticastIPAddress",mIp,sizeof(mIp),NULL);
sscanf(mIp, "%d.%d.%d.%d", &a, &b, &c, &d); ip = ((a*256 + b)*256 + c)*256 + d;
return (double)ip;
}
}
return -1.0;
}

36
samples/cpp/videocapture_pvapi.cpp
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@ -0,0 +1,36 @@
//////////////////////////////////////////////////////
// Sample illustrating the use of the VideoCapture //
// interface in combination with PvAPI interface //
// //
// Succesfully tested on Prosilica and Manta series //
//////////////////////////////////////////////////////
#include <iostream>
#include "opencv2/opencv.hpp"
using namespace std;
using namespace cv;
int main()
{
// Capturing multiple AVT cameras can be done by simply initiating
// two VideoCaptures after eachother.
VideoCapture camera1(0 + CV_CAP_PVAPI);
VideoCapture camera2(0 + CV_CAP_PVAPI);
Mat frame1, frame2;
for(;;){
camera1 >> frame1;
camera2 >> frame2;
imshow("camera 1 frame", frame1);
imshow("camera 2 frame", frame2);
int key = waitKey(10);
if(key == 27){
break;
}
}
return 0;
}
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