// stop streaming
void CameraStop()
{
tPvErr errCode;
//stop camera receiving triggers
if ((errCode = PvCommandRun(GCamera.Handle,"AcquisitionStop")) != ePvErrSuccess)
printf("AcquisitionStop command err: %u\n", errCode);
else
printf("AcquisitionStop success.\n");
//PvCaptureQueueClear aborts any actively written frame with Frame.Status = ePvErrDataMissing
//Further queued frames returned with Frame.Status = ePvErrCancelled
//Add delay between AcquisitionStop and PvCaptureQueueClear
//to give actively written frame time to complete
Sleep(200);
printf("Calling PvCaptureQueueClear...\n");
if ((errCode = PvCaptureQueueClear(GCamera.Handle)) != ePvErrSuccess)
printf("PvCaptureQueueClear err: %u\n", errCode);
else
printf("...Queue cleared.\n");
//stop driver stream
if ((errCode = PvCaptureEnd(GCamera.Handle)) != ePvErrSuccess)
printf("PvCaptureEnd err: %u\n", errCode);
else
printf("Driver stream stopped.\n");
}
void Camera::start(FrameStartTriggerMode fmode, AcquisitionMode amode)
{
//assert( FSTmode_ == None && fmode != None );
///@todo verify this assert again
//assert( fmode == SyncIn1 || fmode == SyncIn2 || fmode == Software || !userCallback_.empty() );
// set camera in acquisition mode
CHECK_ERR( PvCaptureStart(handle_), "Could not start capture");
if (fmode == Freerun || fmode == SyncIn1 || fmode == SyncIn2 || fmode == FixedRate)
for (unsigned int i = 0; i < bufferSize_; ++i)
PvCaptureQueueFrame(handle_, frames_ + i, Camera::frameDone);
// start capture after setting acquisition and trigger modes
try {
///@todo take this one also as an argument
CHECK_ERR( PvAttrEnumSet(handle_, "AcquisitionMode", acquisitionModes[amode]),
"Could not set acquisition mode" );
CHECK_ERR( PvAttrEnumSet(handle_, "FrameStartTriggerMode", triggerModes[fmode]),
"Could not set trigger mode" );
CHECK_ERR( PvCommandRun(handle_, "AcquisitionStart"),
"Could not start acquisition" );
}
catch (ProsilicaException& e) {
PvCaptureEnd(handle_); // reset to non capture mode
throw; // rethrow
}
FSTmode_ = fmode;
Amode_ = amode;
}
void CvCaptureCAM_PvAPI::close()
{
// Stop the acquisition & free the camera
PvCommandRun(Camera.Handle, "AcquisitionStop");
PvCaptureEnd(Camera.Handle);
PvCameraClose(Camera.Handle);
}
//--------------------------------------------------------------------
void ofxVideoGrabberPvAPI::close(){
if( bGrabberInited ) {
// stop the streaming
PvCommandRun(cameraHandle,"AcquisitionStop");
PvCaptureEnd(cameraHandle);
// unsetup the camera
PvCameraClose(cameraHandle);
// and free the image buffer of the frame
delete [] (char*)cameraFrame.ImageBuffer;
}
if( bPvApiInitiated ) {
// uninitialise the API
PvUnInitialize();
}
if (pixels != NULL){
delete[] pixels;
pixels = NULL;
}
tex.clear();
}
// setup and start streaming
// return value: true == success, false == fail
bool CameraStart()
{
tPvErr errCode;
// NOTE: This call sets camera PacketSize to largest sized test packet, up to 8228, that doesn't fail
// on network card. Some MS VISTA network card drivers become unresponsive if test packet fails.
// Use PvUint32Set(handle, "PacketSize", MaxAllowablePacketSize) instead. See network card properties
// for max allowable PacketSize/MTU/JumboFrameSize.
if((errCode = PvCaptureAdjustPacketSize(GCamera.Handle,8228)) != ePvErrSuccess)
{
printf("CameraStart: PvCaptureAdjustPacketSize err: %u\n", errCode);
return false;
}
// start driver capture stream
if((errCode = PvCaptureStart(GCamera.Handle)) != ePvErrSuccess)
{
printf("CameraStart: PvCaptureStart err: %u\n", errCode);
return false;
}
// queue frame
if((errCode = PvCaptureQueueFrame(GCamera.Handle,&(GCamera.Frame),NULL)) != ePvErrSuccess)
{
printf("CameraStart: PvCaptureQueueFrame err: %u\n", errCode);
// stop driver capture stream
PvCaptureEnd(GCamera.Handle);
return false;
}
// set the camera in hardware trigger, continuous mode, and start camera receiving triggers
if((PvAttrEnumSet(GCamera.Handle,"FrameStartTriggerMode","SyncIn1") != ePvErrSuccess) ||
(PvAttrEnumSet(GCamera.Handle,"AcquisitionMode","Continuous") != ePvErrSuccess) ||
(PvCommandRun(GCamera.Handle,"AcquisitionStart") != ePvErrSuccess))
{
printf("CameraStart: failed to set camera attributes\n");
// clear queued frame
PvCaptureQueueClear(GCamera.Handle);
// stop driver capture stream
PvCaptureEnd(GCamera.Handle);
return false;
}
return true;
}
// setup and start streaming
void cameraStart(tCamera* camera, tPvUint32 packetSize) {
cameraSetPixelFormat(camera, "Mono16");
cameraSetExpo(camera, 1000);
//tPvUint32 ROI[4]={0,0,493,659};
//cameraSetROI(camera,ROI);
// Auto adjust the packet size to max supported by the network, up to a max of 8228.
// NOTE: In Vista, if the packet size on the network card is set lower than 8228,
// this call may break the network card's driver. See release notes.
//
tPvErr err = PvCaptureAdjustPacketSize(camera->Handle,packetSize);
//err = PvAttrUint32Set(camera->Handle, "PacketSize", 1500);
if (err != ePvErrSuccess){
stringstream buf;
buf << "failed to adjust packet size : " << cameraGetError(err) << endl;
throw buf.str();
}
unsigned long FrameSize = 0;
err = PvAttrUint32Get(camera->Handle, "TotalBytesPerFrame", &FrameSize);
if (err != ePvErrSuccess){
stringstream buf;
buf << "failed to get TotalBytesPerFrame : " << cameraGetError(err) << endl;
throw buf.str();
}
// allocate the buffer for the single frame we need
camera->Frame.Context[0] = camera;
camera->Frame.ImageBuffer = new char[FrameSize];
if (camera->Frame.ImageBuffer)
camera->Frame.ImageBufferSize = FrameSize;
else
throw "failed allocate Frame.ImageBuffer";
// how big should the frame buffers be?
if (!err) {
// set the camera is capture mode
if (!PvCaptureStart(camera->Handle)) {
// set the camera in continuous acquisition mode
if (!PvAttrEnumSet(camera->Handle, "FrameStartTriggerMode",
"Freerun")) { //"FixedRate" / "Freerun"
// and set the acquisition mode into continuous
if (PvCommandRun(camera->Handle, "AcquisitionStart")) {
// if that fail, we reset the camera to non capture mode
PvCaptureEnd(camera->Handle);
throw "failed to set the acquisition mode into continuous";
}
} else
throw "failed to set the camera in continuous acquisition mode";
} else
throw "failed to set the camera is capture mode";
} else
throw "failed to get TotalBytesPerFrame parameter";
}
void Camera::stop()
{
if (FSTmode_ == None)
return;
PvCommandRun(handle_, "AcquisitionStop");
PvCaptureEnd(handle_);
PvCaptureQueueClear(handle_);
FSTmode_ = None;
}
void OmniCamera::stop(void) {
if(isConnected()) {
PvCommandRun(_camera.handle,"AcquisitionStop");
PvCaptureEnd(_camera.handle);
PvCameraClose(_camera.handle);
if(_camera.frame.ImageBuffer)
delete [] (char*)_camera.frame.ImageBuffer;
_camera.handle = NULL;
_connected = false;
}
}
// setup and start streaming
bool CameraStart(tCamera* Camera)
{
unsigned long FrameSize = 0;
// Auto adjust the packet size to max supported by the network, up to a max of 8228.
// NOTE: In Vista, if the packet size on the network card is set lower than 8228,
// this call may break the network card's driver. See release notes.
//
//PvCaptureAdjustPacketSize(Camera->Handle,8228);
// how big should the frame buffers be?
if(!PvAttrUint32Get(Camera->Handle,"TotalBytesPerFrame",&FrameSize))
{
bool failed = false;
// allocate the buffer for the single frame we need
Camera->Frame.Context[0] = Camera;
Camera->Frame.ImageBuffer = new char[FrameSize];
if(Camera->Frame.ImageBuffer)
Camera->Frame.ImageBufferSize = FrameSize;
else
failed = true;
if(!failed)
{
// set the camera is capture mode
if(!PvCaptureStart(Camera->Handle))
{
// set the camera in continuous acquisition mode
if(!PvAttrEnumSet(Camera->Handle,"FrameStartTriggerMode","Freerun"))
{
// and set the acquisition mode into continuous
if(PvCommandRun(Camera->Handle,"AcquisitionStart"))
{
// if that fail, we reset the camera to non capture mode
PvCaptureEnd(Camera->Handle) ;
return false;
}
else
return true;
}
else
return false;
}
else
return false;
}
else
return false;
}
else
return false;
}
bool CameraGigE::onStart() {
// set the camera is acquisition mode
if (!PvCaptureStart(cHandle)) {
// start the acquisition and make sure the trigger mode is "freerun"
if (PvCommandRun(cHandle, "AcquisitionStart")) {
// if that fail, we reset the camera to non capture mode
PvCaptureEnd(cHandle);
return false;
} else
return true;
} else
return false;
}
//
// idlPvCaptureEnd
//
// Shut down the image capture stream.
//
// command line arguments
// argv[0]: IN/FLAG debug
// argv[1]: IN camera index
int idlPvCaptureEnd (int argc, char *argv[])
{
unsigned long n;
unsigned long err;
debug = *(IDL_INT *) argv[0];
n = *(unsigned long *) argv[1];
CHECKINDEX(n);
err = PvCaptureEnd(camera[n]);
return idlPvErrCode(err);
}
// setup and start streaming
bool CameraStart(tCamera* Camera)
{
unsigned long FrameSize = 0;
// how big should the frame buffers be?
if(!PvAttrUint32Get(Camera->Handle,"TotalBytesPerFrame",&FrameSize))
{
bool failed = false;
// allocate the buffer for the single frame we need
Camera->Frame.Context[0] = Camera;
Camera->Frame.ImageBuffer = new char[FrameSize];
if(Camera->Frame.ImageBuffer)
Camera->Frame.ImageBufferSize = FrameSize;
else
failed = true;
if(!failed)
{
// set the camera is capture mode
if(!PvCaptureStart(Camera->Handle))
{
// set the camera in continuous acquisition mode
if(!PvAttrEnumSet(Camera->Handle,"FrameStartTriggerMode","Freerun"))
{
// and set the acquisition mode into continuous
if(PvCommandRun(Camera->Handle,"AcquisitionStart"))
{
// if that fail, we reset the camera to non capture mode
PvCaptureEnd(Camera->Handle) ;
return false;
}
else
return true;
}
else
return false;
}
else
return false;
}
else
return false;
}
else
return false;
}
// setup and start streaming
bool CameraStart()
{
unsigned long FrameSize = 0;
// how big should the frame buffers be?
if(!PvAttrUint32Get(GCamera.Handle,"TotalBytesPerFrame",&FrameSize))
{
bool failed = false;
// allocate the buffer for the single frame we need
GCamera.Frame.ImageBuffer = new char[FrameSize];
if(GCamera.Frame.ImageBuffer)
GCamera.Frame.ImageBufferSize = FrameSize;
else
failed = true;
if(!failed)
{
// set the camera is capture mode
if(!PvCaptureStart(GCamera.Handle))
{
// and set the acquisition mode into continuous and software trigger mode
if(PvAttrEnumSet(GCamera.Handle,"FrameStartTriggerMode","SyncIn1") ||
PvCommandRun(GCamera.Handle,"AcquisitionStart"))
{
// if that fail, we reset the camera to non capture mode
PvCaptureEnd(GCamera.Handle) ;
return false;
}
else
return true;
}
else
return false;
}
else
return false;
}
else
return false;
}
// stop streaming
void CameraStop()
{
tPvErr errCode;
//stop camera receiving triggers
if ((errCode = PvCommandRun(GCamera.Handle,"AcquisitionStop")) != ePvErrSuccess)
printf("AcquisitionStop command err: %u\n", errCode);
else
printf("Camera stopped.\n");
//clear queued frames. will block until all frames dequeued
if ((errCode = PvCaptureQueueClear(GCamera.Handle)) != ePvErrSuccess)
printf("PvCaptureQueueClear err: %u\n", errCode);
else
printf("Queue cleared.\n");
//stop driver stream
if ((errCode = PvCaptureEnd(GCamera.Handle)) != ePvErrSuccess)
printf("PvCaptureEnd err: %u\n", errCode);
else
printf("Driver stream stopped.\n");
}
// stop streaming
void CameraStop()
{
PvCommandRun(GCamera.Handle,"AcquisitionStop");
PvCaptureEnd(GCamera.Handle);
}
void CvCaptureCAM_PvAPI::stopCapture()
{
PvCommandRun(Camera.Handle, "AcquisitionStop");
PvCaptureEnd(Camera.Handle);
}
bool CameraGigE::onStop() {
PvCommandRun(cHandle, "AcquisitionStop");
PvCaptureEnd(cHandle);
return true;
}
// stop streaming
void CameraStop(tCamera* Camera)
{
PvCommandRun(Camera->Handle,"AcquisitionStop");
PvCaptureEnd(Camera->Handle);
}
// stop streaming
void cameraStop(tCamera* camera) {
PvCommandRun(camera->Handle, "AcquisitionStop");
PvCaptureEnd(camera->Handle);
// and free the image buffer of the frame
delete[] (char*) camera->Frame.ImageBuffer;
}
//--------------------------------------------------------------------
bool ofxVideoGrabberPvAPI::initGrabber(int w, int h, bool setUseTexture){
width = w;
height = h;
tPvErr ret; //PvAPI return codes
bUseTexture = setUseTexture;
memset( &cameraUID, 0, sizeof(cameraUID) );
memset( &cameraHandle, 0, sizeof(cameraHandle) );
memset( &cameraFrame, 0, sizeof(cameraFrame) );
//---------------------------------- 1 - open the sequence grabber
// lazy initialization of the Prosilica API
if( !bPvApiInitiated ){
ret = PvInitialize();
if( ret == ePvErrSuccess ) {
ofLog(OF_LOG_VERBOSE, "PvAPI initialized");
} else {
ofLog(OF_LOG_ERROR, "unable to initialize PvAPI");
return false;
}
bPvApiInitiated = true;
}
//---------------------------------- 3 - buffer allocation
// Create a buffer big enough to hold the video data,
// make sure the pointer is 32-byte aligned.
// also the rgb image that people will grab
pixels = new unsigned char[width*height];
// check for any cameras plugged in
int waitIterations = 0;
while( PvCameraCount() < 1 ) {
ofSleepMillis(250);
waitIterations++;
if( waitIterations > 8 ) {
ofLog(OF_LOG_ERROR, "error: no camera found");
return false;
}
}
//---------------------------------- 4 - device selection
tPvUint32 count, connected;
tPvCameraInfo list[maxConcurrentCams];
count = PvCameraList( list, maxConcurrentCams, &connected );
if(count >= 1) {
bool bSelectedDevicePresent = false;
if(bChooseDevice) {
//check if selected device is available
for( int i=0; i<count; ++i) {
if( deviceID == list[i].UniqueId ) {
bSelectedDevicePresent = true;
cameraUID = list[i].UniqueId;
}
}
}
if( !bSelectedDevicePresent ){
cameraUID = list[0].UniqueId;
ofLog(OF_LOG_NOTICE, "cannot find selected camera -> defaulting to first available");
ofLog(OF_LOG_VERBOSE, "there is currently an arbitrary hard limit of %i concurrent cams", maxConcurrentCams);
}
} else {
ofLog(OF_LOG_ERROR, "no cameras available");
return false;
}
//---------------------------------- 5 - final initialization steps
ret = PvCameraOpen( cameraUID, ePvAccessMaster, &cameraHandle );
if( ret == ePvErrSuccess ){
ofLog(OF_LOG_VERBOSE, "camera opened");
} else {
if( ret == ePvErrAccessDenied ) {
ofLog(OF_LOG_ERROR, "camera access denied, probably already in use");
}
ofLog(OF_LOG_ERROR, "failed to open camera");
return false;
}
unsigned long FrameSize = 0;
ret = PvAttrUint32Get( cameraHandle, "TotalBytesPerFrame", &FrameSize );
if( ret == ePvErrSuccess ){
// allocate the buffer for the single frame we need
cameraFrame.ImageBuffer = new char[FrameSize];
cameraFrame.ImageBufferSize = FrameSize;
ofLog(OF_LOG_VERBOSE, "camera asked for TotalBytesPerFrame");
} else {
ofLog(OF_LOG_ERROR, "failed to allocate capture buffer");
return false;
}
ret = PvCaptureStart(cameraHandle);
if( ret == ePvErrSuccess ){
ofLog(OF_LOG_VERBOSE, "camera set to capture mode");
} else {
if( ret == ePvErrUnplugged ){
ofLog(OF_LOG_ERROR, "cannot start capture, camera was unplugged");
}
ofLog(OF_LOG_ERROR, "cannot set to capture mode");
return false;
}
ret = PvAttrEnumSet(cameraHandle,"FrameStartTriggerMode","Freerun");
if( ret == ePvErrSuccess ){
ofLog(OF_LOG_VERBOSE, "camera set to continuous mode");
} else {
ofLog(OF_LOG_ERROR, "cannot set to continous mode");
return false;
}
ret = PvCommandRun(cameraHandle,"AcquisitionStart");
if( ret == ePvErrSuccess ){
ofLog(OF_LOG_VERBOSE, "camera continuous acquisition started");
} else {
// if that fail, we reset the camera to non capture mode
PvCaptureEnd(cameraHandle) ;
ofLog(OF_LOG_ERROR, "cannot start continuous acquisition");
return false;
}
bGrabberInited = true;
//loadSettings();
ofLog(OF_LOG_NOTICE,"camera is ready now");
//---------------------------------- 6 - setup texture if needed
if (bUseTexture){
// create the texture, set the pixels to black and
// upload them to the texture (so at least we see nothing black the callback)
tex.allocate(width,height,GL_LUMINANCE);
memset(pixels, 0, width*height);
tex.loadData(pixels, width, height, GL_LUMINANCE);
}
// we are done
return true;
}
