fazekasgy@31: /*
fazekasgy@31: */
fazekasgy@31: 
fazekasgy@31: #include <Python.h>
fazekasgy@31: #include "PyTypeInterface.h"
fazekasgy@31: #include "PyRealTime.h"
fazekasgy@31: #include "PyExtensionModule.h"
fazekasgy@31: #include <math.h>
fazekasgy@31: #include <float.h>
fazekasgy@31: #include <limits.h>
fazekasgy@31: #ifndef SIZE_T_MAX
fazekasgy@31: #define (SIZE_T_MAX (size_t) -1)
fazekasgy@31: #endif
fazekasgy@31: 
fazekasgy@31: using std::string;
fazekasgy@31: using std::vector;
fazekasgy@31: using std::cerr;
fazekasgy@31: using std::endl;
fazekasgy@31: using std::map;
fazekasgy@31: 
fazekasgy@31: static std::map<std::string, o::eOutDescriptors> outKeys;
fazekasgy@31: static std::map<std::string, p::eParmDescriptors> parmKeys;
fazekasgy@31: static std::map<std::string, eSampleTypes> sampleKeys;
fazekasgy@31: static std::map<std::string, eFeatureFields> ffKeys;
fazekasgy@31: static bool isMapInitialised = false;
fazekasgy@31: 
fazekasgy@31: /*  Note: NO FUNCTION IN THIS CLASS SHOULD ALTER REFERENCE COUNTS
fazekasgy@31: 	(EXCEPT FOR TEMPORARY PYOBJECTS)!  						   		*/
fazekasgy@31: 
fazekasgy@31: PyTypeInterface::PyTypeInterface() : 
fazekasgy@31: 	m_strict(false),
fazekasgy@31: 	m_error(false),
fazekasgy@31: 	m_lastError(m_noError),
fazekasgy@31: 	error(m_error)
fazekasgy@31: {
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: PyTypeInterface::~PyTypeInterface()
fazekasgy@31: {
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: /// floating point numbers (TODO: check numpy.float128)
fazekasgy@31: float 
fazekasgy@31: PyTypeInterface::PyValue_To_Float(PyObject* pyValue) const
fazekasgy@31: {
fazekasgy@31: 	// convert float
fazekasgy@31: 	if (PyFloat_Check(pyValue)) 
fazekasgy@31: 	{	
fazekasgy@31: 		float rValue = (float) PyFloat_AS_DOUBLE(pyValue);
fazekasgy@31: 		if (PyErr_Occurred()) 
fazekasgy@31: 		{
fazekasgy@31: 			PyErr_Print(); PyErr_Clear();
fazekasgy@31: 			setValueError("Error while converting float object.",m_strict);
fazekasgy@31: 			return 0.0;
fazekasgy@31: 		}
fazekasgy@31: 		return rValue;
fazekasgy@31: 	}
fazekasgy@31: 
fazekasgy@31: 	// in strict mode we will not try harder
fazekasgy@31: 	if (m_strict) {
fazekasgy@31: 		setValueError("Strict conversion error: object is not float.",m_strict);
fazekasgy@31: 		return 0.0;
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31: 	// convert other objects supporting the number protocol
fazekasgy@31: 	if (PyNumber_Check(pyValue)) 
fazekasgy@31: 	{	
fazekasgy@31: 		// PEP353: Py_ssize_t is size_t but signed !
fazekasgy@31: 		// This will work up to numpy.float64
fazekasgy@31: 		Py_ssize_t rValue = PyNumber_AsSsize_t(pyValue,NULL);
fazekasgy@31: 		if (PyErr_Occurred()) 
fazekasgy@31: 		{
fazekasgy@31: 			PyErr_Print(); PyErr_Clear();
fazekasgy@31: 			setValueError("Error while converting integer object.",m_strict);
fazekasgy@31: 			return 0.0;
fazekasgy@31: 		}
fazekasgy@31: 		if (rValue > FLT_MAX || rValue < FLT_MIN)
fazekasgy@31: 		{
fazekasgy@31: 			setValueError("Overflow error. Object can not be converted to float.",m_strict);
fazekasgy@31: 			return 0.0;
fazekasgy@31: 		}
fazekasgy@31: 		return (float) rValue;
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31:     // convert string
fazekasgy@31: 	if (PyString_Check(pyValue))
fazekasgy@31: 	{
fazekasgy@31: 		PyObject* pyFloat = PyFloat_FromString(pyValue,NULL);
fazekasgy@31: 		if (!pyFloat) 
fazekasgy@31: 		{
fazekasgy@31: 			if (PyErr_Occurred()) { PyErr_Print(); PyErr_Clear(); }
fazekasgy@31: 			setValueError("String value can not be converted to float.",m_strict);
fazekasgy@31: 			return 0.0;
fazekasgy@31: 		}
fazekasgy@31: 		float rValue = (float) PyFloat_AS_DOUBLE(pyFloat);
fazekasgy@31: 		if (PyErr_Occurred()) 
fazekasgy@31: 		{
fazekasgy@31: 			PyErr_Print(); PyErr_Clear(); 
fazekasgy@31: 			Py_CLEAR(pyFloat);
fazekasgy@31: 			setValueError("Error while converting float object.",m_strict);
fazekasgy@31: 			return 0.0;
fazekasgy@31: 		}
fazekasgy@31: 		Py_DECREF(pyFloat);
fazekasgy@31: 		return rValue;
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31: 	// convert the first element of any iterable sequence (for convenience and backwards compatibility)
fazekasgy@31: 	if (PySequence_Check(pyValue) and PySequence_Size(pyValue) > 0) 
fazekasgy@31: 	{
fazekasgy@31: 		PyObject* item = PySequence_GetItem(pyValue,0);
fazekasgy@31: 		if (item)
fazekasgy@31: 		{
fazekasgy@31: 			float rValue = this->PyValue_To_Float(item);
fazekasgy@31: 			if (!m_error) {
fazekasgy@31: 				Py_DECREF(item);
fazekasgy@31: 				return rValue;
fazekasgy@31: 			} else {
fazekasgy@31: 				Py_CLEAR(item);
fazekasgy@31: 				std::string msg = "Could not convert sequence element. " + lastError().message;
fazekasgy@31: 				setValueError(msg,m_strict);
fazekasgy@31: 				return 0.0;
fazekasgy@31: 			}
fazekasgy@31: 		}
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31:     // give up
fazekasgy@31: 	if (PyErr_Occurred()) { PyErr_Print(); PyErr_Clear(); }
fazekasgy@31: 	std::string msg = "Conversion from " + PyValue_Get_TypeName(pyValue) + " to float is not possible.";
fazekasgy@31: 	setValueError(msg,m_strict);
fazekasgy@31: 	return 0.0;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: /// size_t (unsigned integer types)
fazekasgy@31: size_t 
fazekasgy@31: PyTypeInterface::PyValue_To_Size_t(PyObject* pyValue) const
fazekasgy@31: {
fazekasgy@31: 	// convert objects supporting the number protocol 
fazekasgy@31: 	if (PyNumber_Check(pyValue)) 
fazekasgy@31: 	{	
fazekasgy@31: 		if (m_strict && !PyInt_Check(pyValue) && !PyLong_Check(pyValue)) 
fazekasgy@31: 			setValueError("Strict conversion error: object is not integer type.",m_strict);
fazekasgy@31: 		// Note: this function handles Bool,Int,Long,Float
fazekasgy@31: 		// PEP353: Py_ssize_t is size_t but signed ! 
fazekasgy@31: 		Py_ssize_t rValue = PyInt_AsSsize_t(pyValue);
fazekasgy@31: 		if (PyErr_Occurred()) 
fazekasgy@31: 		{
fazekasgy@31: 			PyErr_Print(); PyErr_Clear();
fazekasgy@31: 			setValueError("Error while converting integer object.",m_strict);
fazekasgy@31: 			return 0;
fazekasgy@31: 		}
fazekasgy@31: 		if ((unsigned long)rValue > SIZE_T_MAX || (unsigned long)rValue < 0)
fazekasgy@31: 		{
fazekasgy@31: 			setValueError("Overflow error. Object can not be converted to size_t.",m_strict);
fazekasgy@31: 			return 0;
fazekasgy@31: 		}
fazekasgy@31: 		return (size_t) rValue;
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31: 	// in strict mode we will not try harder and throw an exception
fazekasgy@31: 	// then the caller should decide what to do with it
fazekasgy@31: 	if (m_strict) {
fazekasgy@31: 		setValueError("Strict conversion error: object is not integer.",m_strict);
fazekasgy@31: 		return 0;
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31: 	// convert string
fazekasgy@31: 	if (PyString_Check(pyValue))
fazekasgy@31: 	{
fazekasgy@31: 		PyObject* pyLong = PyNumber_Long(pyValue);
fazekasgy@31: 		if (!pyLong) 
fazekasgy@31: 		{
fazekasgy@31: 			if (PyErr_Occurred()) { PyErr_Print(); PyErr_Clear(); }
fazekasgy@31: 			setValueError("String object can not be converted to size_t.",m_strict);
fazekasgy@31: 			return 0;
fazekasgy@31: 		}
fazekasgy@31: 		size_t rValue = this->PyValue_To_Size_t(pyLong);
fazekasgy@31: 		if (!m_error) {
fazekasgy@31: 			Py_DECREF(pyLong);
fazekasgy@31: 			return rValue;
fazekasgy@31: 		} else {
fazekasgy@31: 			Py_CLEAR(pyLong);
fazekasgy@31: 			setValueError (lastError().message,m_strict);
fazekasgy@31: 			return 0;
fazekasgy@31: 		}
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31: 	// convert the first element of iterable sequences
fazekasgy@31: 	if (PySequence_Check(pyValue) and PySequence_Size(pyValue) > 0) 
fazekasgy@31: 	{
fazekasgy@31: 		PyObject* item = PySequence_GetItem(pyValue,0);
fazekasgy@31: 		if (item)
fazekasgy@31: 		{
fazekasgy@31: 			size_t rValue = this->PyValue_To_Size_t(item);
fazekasgy@31: 			if (!m_error) {
fazekasgy@31: 				Py_DECREF(item);
fazekasgy@31: 				return rValue;
fazekasgy@31: 			} else {
fazekasgy@31: 				Py_CLEAR(item);
fazekasgy@31: 				std::string msg = "Could not convert sequence element. " + lastError().message;
fazekasgy@31: 				setValueError(msg,m_strict);
fazekasgy@31: 				return 0;
fazekasgy@31: 			}
fazekasgy@31: 		}
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31:     // give up
fazekasgy@31: 	if (PyErr_Occurred()) { PyErr_Print(); PyErr_Clear(); }
fazekasgy@31: 	std::string msg = "Conversion from " + this->PyValue_Get_TypeName(pyValue) + " to size_t is not possible.";
fazekasgy@31: 	setValueError(msg,m_strict);
fazekasgy@31: 	return 0;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: bool 
fazekasgy@31: PyTypeInterface::PyValue_To_Bool(PyObject* pyValue) const
fazekasgy@31: {
fazekasgy@31: 	// convert objects supporting the number protocol
fazekasgy@31: 	// Note: PyBool is a subclass of PyInt
fazekasgy@31: 	if (PyNumber_Check(pyValue)) 
fazekasgy@31: 	{	
fazekasgy@31: 		if (m_strict && !PyBool_Check(pyValue)) 
fazekasgy@31: 			setValueError
fazekasgy@31: 			("Strict conversion error: object is not boolean type.",m_strict);
fazekasgy@31: 
fazekasgy@31: 		// Note: this function handles Bool,Int,Long,Float
fazekasgy@31: 		Py_ssize_t rValue = PyInt_AsSsize_t(pyValue);
fazekasgy@31: 		if (PyErr_Occurred()) 
fazekasgy@31: 		{
fazekasgy@31: 			PyErr_Print(); PyErr_Clear();
fazekasgy@31: 			setValueError ("Error while converting boolean object.",m_strict);
fazekasgy@31: 		}
fazekasgy@31: 		if (rValue != 1 && rValue != 0)
fazekasgy@31: 		{
fazekasgy@31: 			setValueError ("Overflow error. Object can not be converted to boolean.",m_strict);
fazekasgy@31: 		}
fazekasgy@31: 		return (bool) rValue;
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31: 	if (m_strict) {
fazekasgy@31: 		setValueError ("Strict conversion error: object is not numerical type.",m_strict);
fazekasgy@31: 		return false;
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31: 	// convert iterables: the rule is the same as of the interpreter:
fazekasgy@31: 	// empty sequence evaluates to False, anything else is True
fazekasgy@31: 	if (PySequence_Check(pyValue)) 
fazekasgy@31: 	{
fazekasgy@31: 		return PySequence_Size(pyValue)?true:false;
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31:     // give up
fazekasgy@31: 	if (PyErr_Occurred()) { PyErr_Print(); PyErr_Clear(); }
fazekasgy@31: 	std::string msg = "Conversion from " + this->PyValue_Get_TypeName(pyValue) + " to boolean is not possible.";
fazekasgy@31: 	setValueError(msg,m_strict);
fazekasgy@31: 	return false;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: /// string and objects that support .__str__() (TODO: check unicode objects)
fazekasgy@31: std::string 
fazekasgy@31: PyTypeInterface::PyValue_To_String(PyObject* pyValue) const
fazekasgy@31: {
fazekasgy@31: 	// convert string
fazekasgy@31: 	if (PyString_Check(pyValue)) 
fazekasgy@31: 	{	
fazekasgy@31: 		char *cstr = PyString_AS_STRING(pyValue);
fazekasgy@31: 		if (!cstr) 
fazekasgy@31: 		{
fazekasgy@31: 			if (PyErr_Occurred()) {PyErr_Print(); PyErr_Clear();}
fazekasgy@31: 			setValueError("Error while converting string object.",m_strict);
fazekasgy@31: 			return std::string();
fazekasgy@31: 		}
fazekasgy@31: 		return std::string(cstr);
fazekasgy@31: 	}
fazekasgy@31: 	// TODO: deal with unicode here (argh!)
fazekasgy@31: 
fazekasgy@31: 	// in strict mode we will not try harder
fazekasgy@31: 	if (m_strict) {
fazekasgy@31: 		setValueError("Strict conversion error: object is not string.",m_strict);
fazekasgy@31: 		return std::string();
fazekasgy@31: 	}
fazekasgy@31: 		
fazekasgy@31: 	// convert list or tuple: empty lists are turned into empty strings
fazekasgy@31: 	if (PyList_Check(pyValue) || PyTuple_Check(pyValue)) 
fazekasgy@31: 	{
fazekasgy@31: 		if (!PySequence_Size(pyValue)) return std::string();
fazekasgy@31: 		PyObject* item = PySequence_GetItem(pyValue,0);
fazekasgy@31: 		if (item)
fazekasgy@31: 		{
fazekasgy@31: 			std::string rValue = this->PyValue_To_String(item);
fazekasgy@31: 			if (m_error) {
fazekasgy@31: 				Py_DECREF(item);
fazekasgy@31: 				return rValue;
fazekasgy@31: 			} else {
fazekasgy@31: 				Py_CLEAR(item);
fazekasgy@31: 				std::string msg = "Could not convert sequence element. " + lastError().message;
fazekasgy@31: 				setValueError(msg,m_strict);
fazekasgy@31: 				return std::string();
fazekasgy@31: 			}
fazekasgy@31: 		}
fazekasgy@31: 	}
fazekasgy@31: 
fazekasgy@31: 	// convert any other object that has .__str__() or .__repr__()
fazekasgy@31: 	PyObject* pyString = PyObject_Str(pyValue);
fazekasgy@31: 	if (pyString && !PyErr_Occurred())
fazekasgy@31: 	{
fazekasgy@31: 		std::string rValue = this->PyValue_To_String(pyString);
fazekasgy@31: 		if (m_error) {
fazekasgy@31: 			Py_DECREF(pyString);
fazekasgy@31: 			return rValue;
fazekasgy@31: 		} else {
fazekasgy@31: 			Py_CLEAR(pyString);
fazekasgy@31: 			std::string msg = "Object " + this->PyValue_Get_TypeName(pyValue) +" can not be represented as string. " + lastError().message;
fazekasgy@31: 			setValueError (msg,m_strict);
fazekasgy@31: 			return std::string();
fazekasgy@31: 		}
fazekasgy@31: 	}
fazekasgy@31: 
fazekasgy@31: 	// give up
fazekasgy@31: 	PyErr_Print(); PyErr_Clear();
fazekasgy@31: 	std::string msg = "Conversion from " + this->PyValue_Get_TypeName(pyValue) + " to string is not possible.";
fazekasgy@31: 	setValueError(msg,m_strict);
fazekasgy@31: 	return std::string();
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: /*			 			C Values to Py Values				  		*/
fazekasgy@31: 
fazekasgy@31: 
fazekasgy@31: PyObject*
fazekasgy@31: PyTypeInterface::PyValue_From_CValue(const char* cValue) const
fazekasgy@31: {
fazekasgy@31: 	// returns new reference
fazekasgy@31: 	if (!cValue) 
fazekasgy@31: 		setValueError("Invalid pointer encountered while converting from char* .",m_strict);
fazekasgy@31: 	PyObject *pyValue = PyString_FromString(cValue);
fazekasgy@31: 	if (!pyValue)
fazekasgy@31: 	{
fazekasgy@31: 		if (PyErr_Occurred()) {PyErr_Print(); PyErr_Clear();}
fazekasgy@31: 		setValueError("Error while converting from char* or string.",m_strict);
fazekasgy@31: 		return NULL;
fazekasgy@31: 	}
fazekasgy@31: 	return pyValue;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: PyObject*
fazekasgy@31: PyTypeInterface::PyValue_From_CValue(size_t cValue) const
fazekasgy@31: {
fazekasgy@31: 	// returns new reference
fazekasgy@31: 	PyObject *pyValue = PyInt_FromSsize_t((Py_ssize_t)cValue);
fazekasgy@31: 	if (!pyValue)
fazekasgy@31: 	{
fazekasgy@31: 		if (PyErr_Occurred()) {PyErr_Print(); PyErr_Clear();}
fazekasgy@31: 		setValueError("Error while converting from size_t.",m_strict);
fazekasgy@31: 		return NULL;
fazekasgy@31: 	}
fazekasgy@31: 	return pyValue;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: PyObject*
fazekasgy@31: PyTypeInterface::PyValue_From_CValue(double cValue) const
fazekasgy@31: {
fazekasgy@31: 	// returns new reference
fazekasgy@31: 	PyObject *pyValue = PyFloat_FromDouble(cValue);
fazekasgy@31: 	if (!pyValue)
fazekasgy@31: 	{
fazekasgy@31: 		if (PyErr_Occurred()) {PyErr_Print(); PyErr_Clear();}
fazekasgy@31: 		setValueError("Error while converting from float or double.",m_strict);
fazekasgy@31: 		return NULL;
fazekasgy@31: 	}
fazekasgy@31: 	return pyValue;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: PyObject*
fazekasgy@31: PyTypeInterface::PyValue_From_CValue(bool cValue) const
fazekasgy@31: {
fazekasgy@31: 	// returns new reference
fazekasgy@31: 	PyObject *pyValue = PyBool_FromLong((long)cValue);
fazekasgy@31: 	if (!pyValue)
fazekasgy@31: 	{
fazekasgy@31: 		if (PyErr_Occurred()) {PyErr_Print(); PyErr_Clear();}
fazekasgy@31: 		setValueError("Error while converting from bool.",m_strict);
fazekasgy@31: 		return NULL;
fazekasgy@31: 	}
fazekasgy@31: 	return pyValue;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: 
fazekasgy@31: /*			 			Sequence Types to C++ Types	    		  	*/
fazekasgy@31: 
fazekasgy@31: //convert Python list to C++ vector of strings
fazekasgy@31: std::vector<std::string> 
fazekasgy@31: PyTypeInterface::PyValue_To_StringVector (PyObject *inputList) const 
fazekasgy@31: {
fazekasgy@31: 	
fazekasgy@31: 	std::vector<std::string> Output;
fazekasgy@31: 	std::string ListElement;
fazekasgy@31: 	PyObject *pyString = NULL;
fazekasgy@31: 	
fazekasgy@31: 	if (!PyList_Check(inputList)) return Output;
fazekasgy@31: 
fazekasgy@31: 	for (Py_ssize_t i = 0; i < PyList_GET_SIZE(inputList); ++i) {
fazekasgy@31: 		//Get next list item (Borrowed Reference)
fazekasgy@31: 		pyString = PyList_GET_ITEM(inputList,i);
fazekasgy@31: 		ListElement = (string) PyString_AsString(PyObject_Str(pyString));
fazekasgy@31: 		Output.push_back(ListElement);
fazekasgy@31: 	}
fazekasgy@31: 	return Output;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: //convert Python list to C++ vector of floats
fazekasgy@31: std::vector<float> 
fazekasgy@31: PyTypeInterface::PyValue_To_FloatVector (PyObject *inputList) const 
fazekasgy@31: {
fazekasgy@31: 	typedef std::vector<float> floatVector;
fazekasgy@31: 	std::vector<float> Output;
fazekasgy@31: 	
fazekasgy@31: 	/// Check for NumPy Array
fazekasgy@31: 	if (PyObject_HasAttrString(inputList,"__array_struct__")) {
fazekasgy@31: 		int vectorLength;
fazekasgy@31: 		float *dataptr = getNumPyObjectData(inputList,vectorLength);
fazekasgy@31: 		if (dataptr != 0) cerr << "Numpy array found: " << vectorLength << endl;
fazekasgy@31: 		// Output = *dataptr;
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31: 	float ListElement;
fazekasgy@31: 	PyObject *pyFloat = NULL;
fazekasgy@31: 	
fazekasgy@31: 	if (!PyList_Check(inputList)) return Output; 
fazekasgy@31: 
fazekasgy@31: 	for (Py_ssize_t k = 0; k < PyList_GET_SIZE(inputList); ++k) {
fazekasgy@31: 		//Get next list item (Borrowed Reference)
fazekasgy@31: 		pyFloat =  PyList_GET_ITEM(inputList,k);
fazekasgy@31: 		ListElement = (float) PyFloat_AS_DOUBLE(pyFloat);
fazekasgy@31: #ifdef _DEBUG
fazekasgy@31: 		cerr << "value: " << ListElement << endl;
fazekasgy@31: #endif
fazekasgy@31: 		Output.push_back(ListElement);
fazekasgy@31: 	}
fazekasgy@31: 
fazekasgy@31: 	return Output;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: 
fazekasgy@31: /*			 			Vamp API Specific Types				  		
fazekasgy@31: 
fazekasgy@31: Vamp::Plugin::OutputList 
fazekasgy@31: PyTypeInterface::PyValue_To_OutputList(PyObject* pyList) const
fazekasgy@31: {
fazekasgy@31: 	Vamp::Plugin::OutputList list;
fazekasgy@31: 	Vamp::Plugin::OutputDescriptor od;
fazekasgy@31: 	
fazekasgy@31: 	// Type checking
fazekasgy@31: 	if (! PyList_Check(pyList) ) {
fazekasgy@31: 		Py_CLEAR(pyList);
fazekasgy@31: 		// cerr << "ERROR: In Python plugin [" << m_class << "::" << method 
fazekasgy@31: 		// << "] Expected List return type." << endl;
fazekasgy@31: 		return list;
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31: 	//These will all be borrowed references (no need to DECREF)
fazekasgy@31: 	PyObject *pyDict;
fazekasgy@31: 		
fazekasgy@31: 	//Parse Output List
fazekasgy@31: 	for (Py_ssize_t i = 0; i < PyList_GET_SIZE(pyList); ++i) {
fazekasgy@31: 		//Get i-th Vamp output descriptor (Borrowed Reference)
fazekasgy@31: 		pyDict = PyList_GET_ITEM(pyList,i);
fazekasgy@31: 		od = PyValue_To_OutputDescriptor(pyDict);
fazekasgy@31: 		list.push_back(od);
fazekasgy@31: 	}
fazekasgy@31: 	return list;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: Vamp::Plugin::ParameterList 
fazekasgy@31: PyTypeInterface::PyValue_To_ParameterList(PyObject* pyList) const
fazekasgy@31: {
fazekasgy@31: 	Vamp::Plugin::ParameterList list;
fazekasgy@31: 	Vamp::Plugin::ParameterDescriptor pd;
fazekasgy@31: 	
fazekasgy@31: 	// Type checking
fazekasgy@31: 	if (! PyList_Check(pyList) ) {
fazekasgy@31: 		Py_CLEAR(pyList);
fazekasgy@31: 		// cerr << "ERROR: In Python plugin [" << m_class << "::" << method 
fazekasgy@31: 		// << "] Expected List return type." << endl;
fazekasgy@31: 		return list;
fazekasgy@31: 	}
fazekasgy@31: 	
fazekasgy@31: 	//These will all be borrowed references (no need to DECREF)
fazekasgy@31: 	PyObject *pyDict;
fazekasgy@31: 		
fazekasgy@31: 	//Parse Output List
fazekasgy@31: 	for (Py_ssize_t i = 0; i < PyList_GET_SIZE(pyList); ++i) {
fazekasgy@31: 		//Get i-th Vamp output descriptor (Borrowed Reference)
fazekasgy@31: 		pyDict = PyList_GET_ITEM(pyList,i);
fazekasgy@31: 		pd = PyValue_To_ParameterDescriptor(pyDict);
fazekasgy@31: 		list.push_back(pd);
fazekasgy@31: 	}
fazekasgy@31: 	return list;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: Vamp::Plugin::OutputDescriptor
fazekasgy@31: PyTypeInterface::PyValue_To_OutputDescriptor(PyObject* pyDict) const
fazekasgy@31: {
fazekasgy@31: 	//We only care about dictionaries holding output descriptors
fazekasgy@31: 	if (!PyDict_Check(pyDict)) 
fazekasgy@31: 		return Vamp::Plugin::OutputDescriptor();
fazekasgy@31:                        
fazekasgy@31: 	Py_ssize_t pyPos = 0;
fazekasgy@31: 	PyObject *pyKey, *pyValue;
fazekasgy@31: 	initMaps();
fazekasgy@31: 	Vamp::Plugin::OutputDescriptor od;
fazekasgy@31: 
fazekasgy@31: 	//Python Dictionary Iterator:
fazekasgy@31: 	while (PyDict_Next(pyDict, &pyPos, &pyKey, &pyValue))
fazekasgy@31: 	{
fazekasgy@31: 		std::string key = PyValue_To_String(pyKey);
fazekasgy@31: 		SetValue(od,key,pyValue);
fazekasgy@31: 		if (m_error) {
fazekasgy@31: 			_lastError().location += "parameter: '" 
fazekasgy@31: 			+ key +"' descriptor: '" + od.identifier + "'";
fazekasgy@31: 		}
fazekasgy@31: 	}
fazekasgy@31: 	if (!m_errorQueue.empty()) m_error = true;
fazekasgy@31: 	return od;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: Vamp::Plugin::ParameterDescriptor
fazekasgy@31: PyTypeInterface::PyValue_To_ParameterDescriptor(PyObject* pyDict) const
fazekasgy@31: {
fazekasgy@31: 	//We only care about dictionaries holding output descriptors
fazekasgy@31: 	if (!PyDict_Check(pyDict)) 
fazekasgy@31: 		return Vamp::Plugin::ParameterDescriptor();
fazekasgy@31:                        
fazekasgy@31: 	Py_ssize_t pyPos = 0;
fazekasgy@31: 	PyObject *pyKey, *pyValue;
fazekasgy@31: 	initMaps();
fazekasgy@31: 	Vamp::Plugin::ParameterDescriptor pd;
fazekasgy@31: 
fazekasgy@31: 	//Python Dictionary Iterator:
fazekasgy@31: 	while (PyDict_Next(pyDict, &pyPos, &pyKey, &pyValue))
fazekasgy@31: 	{
fazekasgy@31: 		std::string key = PyValue_To_String(pyKey);
fazekasgy@31: 		SetValue(pd,key,pyValue);
fazekasgy@31: 		if (m_error) {
fazekasgy@31: 			_lastError().location += "parameter: '" 
fazekasgy@31: 			+ key +"' descriptor: '" + pd.identifier + "'";
fazekasgy@31: 		}
fazekasgy@31: 	}
fazekasgy@31: 	if (!m_errorQueue.empty()) m_error = true;
fazekasgy@31: 	return pd;
fazekasgy@31: }
fazekasgy@31:  
fazekasgy@31: Vamp::Plugin::Feature
fazekasgy@31: PyTypeInterface::PyValue_To_Feature(PyObject* pyDict) const
fazekasgy@31: {
fazekasgy@31: 	//We only care about dictionaries holding output descriptors
fazekasgy@31: 	if (!PyDict_Check(pyDict)) 
fazekasgy@31: 		return Vamp::Plugin::Feature();
fazekasgy@31:                        
fazekasgy@31: 	Py_ssize_t pyPos = 0;
fazekasgy@31: 	PyObject *pyKey, *pyValue;
fazekasgy@31: 	initMaps();
fazekasgy@31: 	Vamp::Plugin::Feature feature;
fazekasgy@31: 
fazekasgy@31: 	//Python Dictionary Iterator:
fazekasgy@31: 	while (PyDict_Next(pyDict, &pyPos, &pyKey, &pyValue))
fazekasgy@31: 	{
fazekasgy@31: 		std::string key = PyValue_To_String(pyKey);
fazekasgy@31: 		float isr = 22050.0;
fazekasgy@31: 		Feature_SetValue(feature,key,pyValue,isr);
fazekasgy@31: 		if (m_error) {
fazekasgy@31: 			_lastError().location += "key: '" + key + "'";
fazekasgy@31: 			// _lastError().location += "parameter: '" 
fazekasgy@31: 			// + key +"' descriptor: '" + pd.identifier + "'";
fazekasgy@31: 		}
fazekasgy@31: 	}
fazekasgy@31: 	if (!m_errorQueue.empty()) m_error = true;
fazekasgy@31: 	return feature;
fazekasgy@31: }
fazekasgy@31: */
fazekasgy@31: 
fazekasgy@31: /// FeatureSet (an int map of OutputLists)
fazekasgy@31: Vamp::Plugin::FeatureSet
fazekasgy@31: PyTypeInterface::PyValue_To_FeatureSet(PyObject* pyValue) const
fazekasgy@31: {
fazekasgy@31: 	Vamp::Plugin::FeatureSet rFeatureSet; /// PyFeatureSet is an int map
fazekasgy@31: 	if (pyValue == NULL) {
fazekasgy@31: 		cerr << "NULL FeatureSet" << endl;
fazekasgy@31: 		return rFeatureSet;
fazekasgy@31: 	}
fazekasgy@31: 
fazekasgy@31: 	cerr << "PyValue_To_FeatureSet" << endl;
fazekasgy@31: 	//Convert PyFeatureSet 
fazekasgy@31: 	if (PyFeatureSet_CheckExact(pyValue)) { 
fazekasgy@31: 		cerr << "FeatureSet Return type" << endl;
fazekasgy@31: 		Py_ssize_t pyPos = 0;
fazekasgy@31: 		//Borrowed References
fazekasgy@31: 		PyObject *pyKey, *pyDictValue;
fazekasgy@31: 		int key;
fazekasgy@31: 
fazekasgy@31: 			//Python Dictionary Iterator:
fazekasgy@31: 			while (PyDict_Next(pyValue, &pyPos, &pyKey, &pyDictValue))
fazekasgy@31: 			{
fazekasgy@31: 				/// DictValue -> Vamp::FeatureList
fazekasgy@31: 				key = (int) PyInt_AS_LONG(pyKey);
fazekasgy@31: 				cerr << "FeatureSet key = " << key << endl;
fazekasgy@31: 				/// Error checking is done at value assignment
fazekasgy@31: 				PyValue_To_rValue(pyDictValue,rFeatureSet[key]);
fazekasgy@31: 			}
fazekasgy@31: 			if (!m_errorQueue.empty()) m_error = true;
fazekasgy@31: 			return rFeatureSet;
fazekasgy@31: 	}
fazekasgy@31: 	cerr << "not FeatureSet Return type" << endl;
fazekasgy@31: 	
fazekasgy@31: 		
fazekasgy@31: 	//Check return type
fazekasgy@31: 	if (pyValue == NULL || !PyList_Check(pyValue) ) {
fazekasgy@31: 		if (pyValue == NULL) {
fazekasgy@31: 			// cerr << "ERROR: In Python plugin [" << m_class << "::" << method << "] Unexpected result." << endl;
fazekasgy@31: 			if (PyErr_Occurred()) { PyErr_Print(); PyErr_Clear(); }
fazekasgy@31: 		} else {
fazekasgy@31: 			// cerr << "ERROR: In Python plugin [" << m_class << "::" << method << "] Expected List return type." << endl;
fazekasgy@31: 		}
fazekasgy@31: 		Py_CLEAR(pyValue);
fazekasgy@31: 		return Vamp::Plugin::FeatureSet();
fazekasgy@31: 	}
fazekasgy@31: 		
fazekasgy@31: 	// This will be borrowed reference
fazekasgy@31: 	PyObject *pyFeatureList;
fazekasgy@31: 
fazekasgy@31: 	//Parse Output List for each element (FeatureSet)
fazekasgy@31: 	for (Py_ssize_t i = 0; i < PyList_GET_SIZE(pyValue); ++i) {
fazekasgy@31: 		//Get i-th FeatureList (Borrowed Reference)
fazekasgy@31: 		pyFeatureList = PyList_GET_ITEM(pyValue,i);
fazekasgy@31: 		PyValue_To_rValue(pyFeatureList,rFeatureSet[i]);
fazekasgy@31: 	}
fazekasgy@31: 	// Py_CLEAR(pyOutputList);
fazekasgy@31: 	return rFeatureSet;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: Vamp::RealTime::RealTime
fazekasgy@31: PyTypeInterface::PyValue_To_RealTime(PyObject* pyValue) const
fazekasgy@31: {
fazekasgy@31: // We accept integer sample counts (for backwards compatibility)
fazekasgy@31: // or PyRealTime objects and convert them to Vamp::RealTime
fazekasgy@31: 	
fazekasgy@31: 	if (PyRealTime_CheckExact(pyValue))
fazekasgy@31: 	{
fazekasgy@31: #ifdef _DEBUG
fazekasgy@31: 		cerr << "Converting from PyRealTime" << endl;
fazekasgy@31: #endif
fazekasgy@31: 		/// just create a copy of the wrapped object
fazekasgy@31: 		return Vamp::RealTime::RealTime(
fazekasgy@31: 			*PyRealTime_AS_REALTIME(pyValue));
fazekasgy@31: 	}
fazekasgy@31: 	// assume integer sample count
fazekasgy@31: 	long sampleCount = PyLong_AsLong(pyValue);
fazekasgy@31: 	if (PyErr_Occurred()) 
fazekasgy@31: 	{
fazekasgy@31: 		PyErr_Print(); PyErr_Clear();
fazekasgy@31: 		setValueError("Error while converting integer to RealTime.",m_strict);
fazekasgy@31: 		return Vamp::RealTime::RealTime();
fazekasgy@31: 	}
fazekasgy@31: #ifdef _DEBUG
fazekasgy@31: 	Vamp::RealTime::RealTime rt = 
fazekasgy@31: 		Vamp::RealTime::frame2RealTime(sampleCount,m_inputSampleRate );
fazekasgy@31: 	cerr << "RealTime: " << (long)sampleCount << ", ->" << rt.toString() << endl;
fazekasgy@31: 	return rt;
fazekasgy@31: #else
fazekasgy@31: 	return Vamp::RealTime::frame2RealTime(sampleCount,m_inputSampleRate );	
fazekasgy@31: #endif
fazekasgy@31: 
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: 
fazekasgy@31: /// OutputDescriptor
fazekasgy@31: void
fazekasgy@31: PyTypeInterface::SetValue(Vamp::Plugin::OutputDescriptor& od, std::string& key, PyObject* pyValue) const
fazekasgy@31: {
fazekasgy@31: 	switch (outKeys[key])
fazekasgy@31: 	{
fazekasgy@31: 		case o::not_found:
fazekasgy@31: 			cerr << "Unknown key in Vamp OutputDescriptor: " << key << endl;
fazekasgy@31: 			break;
fazekasgy@31: 			case o::identifier: 
fazekasgy@31: 			_convert(pyValue,od.identifier);
fazekasgy@31: 			break;				
fazekasgy@31: 		case o::name: 			
fazekasgy@31: 			_convert(pyValue,od.name);
fazekasgy@31: 			break;
fazekasgy@31: 		case o::description:
fazekasgy@31: 			_convert(pyValue,od.description);
fazekasgy@31: 			break;
fazekasgy@31: 		case o::unit:
fazekasgy@31: 			_convert(pyValue,od.unit);
fazekasgy@31: 			break;
fazekasgy@31: 		case o::hasFixedBinCount:
fazekasgy@31: 			_convert(pyValue,od.hasFixedBinCount);
fazekasgy@31: 			break;
fazekasgy@31: 		case o::binCount:
fazekasgy@31: 			_convert(pyValue,od.binCount);
fazekasgy@31: 			break;
fazekasgy@31: 		case o::binNames:
fazekasgy@31: 			_convert(pyValue,od.binNames);
fazekasgy@31: 			break;
fazekasgy@31: 		case o::hasKnownExtents:
fazekasgy@31: 			_convert(pyValue,od.hasKnownExtents);
fazekasgy@31: 			break;
fazekasgy@31: 		case o::minValue:
fazekasgy@31: 			_convert(pyValue,od.minValue);
fazekasgy@31: 			break;
fazekasgy@31: 		case o::maxValue:
fazekasgy@31: 			_convert(pyValue,od.maxValue);
fazekasgy@31: 			break;
fazekasgy@31: 		case o::isQuantized:
fazekasgy@31: 			_convert(pyValue,od.isQuantized);
fazekasgy@31: 			break;					
fazekasgy@31: 		case o::quantizeStep:
fazekasgy@31: 			_convert(pyValue,od.quantizeStep);
fazekasgy@31: 			break;
fazekasgy@31: 		case o::sampleType:
fazekasgy@31: 			// implements specific conversion!
fazekasgy@31: 			od.sampleType = (Vamp::Plugin::OutputDescriptor::SampleType) sampleKeys[PyValue_To_String(pyValue)];
fazekasgy@31: 			break;
fazekasgy@31: 		case o::sampleRate:
fazekasgy@31: 			_convert(pyValue,od.sampleRate);
fazekasgy@31: 			break;
fazekasgy@31: 		case o::hasDuration:
fazekasgy@31: 			_convert(pyValue,od.hasDuration);
fazekasgy@31: 			break;
fazekasgy@31: 		default:
fazekasgy@31: 			cerr << "Invalid key in Vamp OutputDescriptor: " << key << endl; 
fazekasgy@31: 	}
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: /// ParameterDescriptor
fazekasgy@31: void
fazekasgy@31: PyTypeInterface::SetValue(Vamp::Plugin::ParameterDescriptor& pd, std::string& key, PyObject* pyValue) const
fazekasgy@31: {
fazekasgy@31: 	switch (parmKeys[key]) 
fazekasgy@31: 	{
fazekasgy@31: 		case p::not_found : 	
fazekasgy@31: 			cerr << "Unknown key in Vamp ParameterDescriptor: " << key << endl; 
fazekasgy@31: 			break;
fazekasgy@31: 		case p::identifier:
fazekasgy@31: 			_convert(pyValue,pd.identifier);
fazekasgy@31: 			break;				
fazekasgy@31: 		case p::name:
fazekasgy@31: 			_convert(pyValue,pd.name);
fazekasgy@31: 			break;
fazekasgy@31: 		case p::description: 	
fazekasgy@31: 			_convert(pyValue,pd.description);
fazekasgy@31: 			break; 								
fazekasgy@31: 		case p::unit:
fazekasgy@31: 			_convert(pyValue,pd.unit);
fazekasgy@31: 			break; 																		
fazekasgy@31: 		case p::minValue:	
fazekasgy@31: 			_convert(pyValue,pd.minValue);
fazekasgy@31: 			break;
fazekasgy@31: 		case p::maxValue:
fazekasgy@31: 			_convert(pyValue,pd.maxValue);
fazekasgy@31: 			break;
fazekasgy@31: 		case p::defaultValue:
fazekasgy@31: 			_convert(pyValue,pd.defaultValue);
fazekasgy@31: 			break;
fazekasgy@31: 		case p::isQuantized:
fazekasgy@31: 			_convert(pyValue,pd.isQuantized);
fazekasgy@31: 			break;									
fazekasgy@31: 		case p::quantizeStep:
fazekasgy@31: 			_convert(pyValue,pd.quantizeStep);
fazekasgy@31: 			break;
fazekasgy@31: 		default : 	
fazekasgy@31: 			cerr << "Invalid key in Vamp ParameterDescriptor: " << key << endl; 
fazekasgy@31: 	}
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: /// Feature (it's like a Descriptor)
fazekasgy@31: bool
fazekasgy@31: PyTypeInterface::SetValue(Vamp::Plugin::Feature& feature, std::string& key, PyObject* pyValue) const
fazekasgy@31: {
fazekasgy@31: 	bool found = true;
fazekasgy@31: 	switch (ffKeys[key])
fazekasgy@31: 	{
fazekasgy@31: 		case unknown :
fazekasgy@31: 			cerr << "Unknown key in Vamp Feature: " << key << endl; 
fazekasgy@31: 			found = false;
fazekasgy@31: 			break;
fazekasgy@31: 		case hasTimestamp:
fazekasgy@31: 			_convert(pyValue,feature.hasTimestamp);
fazekasgy@31: 			break;				
fazekasgy@31: 		case timeStamp:
fazekasgy@31: 			_convert(pyValue,feature.timestamp);
fazekasgy@31: 			break;
fazekasgy@31: 		case hasDuration: 	
fazekasgy@31: 			_convert(pyValue,feature.hasDuration);
fazekasgy@31: 			break;
fazekasgy@31: 		case duration:
fazekasgy@31: 			_convert(pyValue,feature.duration);
fazekasgy@31: 			break;
fazekasgy@31: 		case values:
fazekasgy@31: 			_convert(pyValue,feature.values);
fazekasgy@31: 			break; 								
fazekasgy@31: 		case label:
fazekasgy@31: 			_convert(pyValue,feature.label);
fazekasgy@31: 			break;
fazekasgy@31: 		default:
fazekasgy@31: 			found = false;
fazekasgy@31: 	}
fazekasgy@31: 	return found;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: /*
fazekasgy@31: /// Feature (it's like a Descriptor)
fazekasgy@31: bool
fazekasgy@31: PyTypeInterface::GetValue(Vamp::Plugin::Feature& feature, std::string& key, PyObject* pyValue) const
fazekasgy@31: {
fazekasgy@31: 	bool found = true;
fazekasgy@31: 	switch (ffKeys[key])
fazekasgy@31: 	{
fazekasgy@31: 		case unknown :
fazekasgy@31: 			cerr << "Unknown key in Vamp Feature: " << key << endl; 
fazekasgy@31: 			found = false;
fazekasgy@31: 			break;
fazekasgy@31: 		case hasTimestamp:
fazekasgy@31: 			_convert(pyValue,feature.hasTimestamp);
fazekasgy@31: 			// pyValue = PyValue_From_CValue(feature.hasTimestamp)
fazekasgy@31: 			break;				
fazekasgy@31: 		case timeStamp:
fazekasgy@31: 			_convert(pyValue,feature.timestamp);
fazekasgy@31: 			break;
fazekasgy@31: 		case hasDuration: 	
fazekasgy@31: 			_convert(pyValue,feature.hasDuration);
fazekasgy@31: 			break;
fazekasgy@31: 		case duration:
fazekasgy@31: 			_convert(pyValue,feature.duration);
fazekasgy@31: 			break;
fazekasgy@31: 		case values:
fazekasgy@31: 			_convert(pyValue,feature.values);
fazekasgy@31: 			break; 								
fazekasgy@31: 		case label:
fazekasgy@31: 			_convert(pyValue,feature.label); //vector<string>
fazekasgy@31: 			break;
fazekasgy@31: 		default:
fazekasgy@31: 			found = false;
fazekasgy@31: 	}
fazekasgy@31: 	return found;
fazekasgy@31: }
fazekasgy@31: */
fazekasgy@31: 
fazekasgy@31: /*			   			  	Error handling		   			  		*/
fazekasgy@31: 
fazekasgy@31: void
fazekasgy@31: PyTypeInterface::setValueError (std::string message, bool strict) const
fazekasgy@31: {
fazekasgy@31: 	m_error = true;
fazekasgy@31: 	m_errorQueue.push(ValueError(message,strict));
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: /// return a reference to the last error or creates a new one.
fazekasgy@31: PyTypeInterface::ValueError&
fazekasgy@31: PyTypeInterface::_lastError() const 
fazekasgy@31: {
fazekasgy@31: 	m_error = false;
fazekasgy@31: 	if (!m_errorQueue.empty()) return m_errorQueue.back();
fazekasgy@31: 	else {
fazekasgy@31: 		m_errorQueue.push(ValueError("Type conversion error.",m_strict));
fazekasgy@31: 		return m_errorQueue.back();
fazekasgy@31: 	}
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: /// return the last error message and clear the error flag
fazekasgy@31: const PyTypeInterface::ValueError&
fazekasgy@31: PyTypeInterface::lastError() const 
fazekasgy@31: {
fazekasgy@31: 	// PyTypeInterface *self = const_cast<PyTypeInterface*> (this);
fazekasgy@31: 	m_error = false;
fazekasgy@31: 	if (!m_errorQueue.empty()) return m_errorQueue.back();
fazekasgy@31: 	else return m_noError;
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: /// iterate over the error message queue and pop the oldest item
fazekasgy@31: PyTypeInterface::ValueError 
fazekasgy@31: PyTypeInterface::getError() const
fazekasgy@31: {
fazekasgy@31: 	if (!m_errorQueue.empty()) {
fazekasgy@31: 		PyTypeInterface::ValueError e = m_errorQueue.front();
fazekasgy@31: 		m_errorQueue.pop();
fazekasgy@31: 		if (m_errorQueue.empty()) m_error = false;
fazekasgy@31: 		return e;
fazekasgy@31: 	}
fazekasgy@31: 	else {
fazekasgy@31: 		m_error = false;
fazekasgy@31: 		return PyTypeInterface::ValueError();
fazekasgy@31: 	}
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: /*			   			  	Utilities						  		*/
fazekasgy@31: 
fazekasgy@31: //return a pointer to the data in the numPy array
fazekasgy@31: float* 
fazekasgy@31: PyTypeInterface::getNumPyObjectData(PyObject *object, int &length) const
fazekasgy@31: {
fazekasgy@31: 
fazekasgy@31: 	char attr_name[]="__array_struct__";
fazekasgy@31: 
fazekasgy@31: 	//check if we passed in a NumPy array object
fazekasgy@31: 	if (!PyObject_HasAttrString(object,attr_name)) {
fazekasgy@31: 		// PyErr_SetString(PyExc_TypeError,
fazekasgy@31: 		// "Input object has no __array_struct__ attribute. NumPy array required.");
fazekasgy@31: 		return NULL;		
fazekasgy@31: 	}
fazekasgy@31: 
fazekasgy@31: 	//retrieve __array_struct__ interface
fazekasgy@31: 	object = PyObject_GetAttrString(object,attr_name);	
fazekasgy@31: 
fazekasgy@31: 	//check whether we found CObjects
fazekasgy@31: 	if (!PyCObject_Check(object)) {
fazekasgy@31: 		PyErr_SetString(PyExc_TypeError,
fazekasgy@31: 		"The passed __array_struct__ interface is not a valid C Object.");
fazekasgy@31: 		return NULL; 
fazekasgy@31: 	}
fazekasgy@31: 
fazekasgy@31: 
fazekasgy@31: 	//check if the pointers directed to the integer '2'
fazekasgy@31: 	int *check = (int *) PyCObject_AsVoidPtr (object);
fazekasgy@31: 
fazekasgy@31: 	if (*check != 2 ) {
fazekasgy@31: 		PyErr_SetString(PyExc_TypeError,
fazekasgy@31: 		"A C Object __array_struct__ required as inputs");
fazekasgy@31: 		return NULL; 
fazekasgy@31: 	}
fazekasgy@31: 
fazekasgy@31: 	//convert CObjects to Array interfaces
fazekasgy@31: 	PyArrayInterface *arrayInterface = 
fazekasgy@31: 	(PyArrayInterface *) PyCObject_AsVoidPtr (object);
fazekasgy@31: 
fazekasgy@31: 	//check array dimension: should be 1
fazekasgy@31: 	int inputDim = arrayInterface->nd;
fazekasgy@31: 	
fazekasgy@31: 	if (inputDim > 1 ) {
fazekasgy@31: 		PyErr_SetString(PyExc_TypeError,
fazekasgy@31: 		"Array dimensions must not exceed one.");
fazekasgy@31: 		return NULL;		
fazekasgy@31: 	}
fazekasgy@31: 
fazekasgy@31: 	// check if vector size is sane	
fazekasgy@31: 	Py_intptr_t arrayLength = arrayInterface->shape[0];
fazekasgy@31: 	length = (int) arrayLength;
fazekasgy@31: 	
fazekasgy@31: 	// if (arrayLength < 8 || arrayLength > 65536 ) {
fazekasgy@31: 	// 	PyErr_SetString(PyExc_TypeError,
fazekasgy@31: 	// 	"Array length is out of bounds.");
fazekasgy@31: 	// 	return NULL;		
fazekasgy@31: 	// 	}
fazekasgy@31: 
fazekasgy@31: 	//check type; must be float32
fazekasgy@31: 	char arrayType = arrayInterface->typekind;
fazekasgy@31: 
fazekasgy@31: 	if (arrayType != 'f' ) {
fazekasgy@31: 		PyErr_SetString(PyExc_TypeError,
fazekasgy@31: 		"Floating point arrays required.");
fazekasgy@31: 		return NULL;		
fazekasgy@31: 	}
fazekasgy@31: 
fazekasgy@31: 	//return data vector address
fazekasgy@31: 	return (float*) arrayInterface->data;
fazekasgy@31: 	
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: /// get the type name of an object
fazekasgy@31: std::string
fazekasgy@31: PyTypeInterface::PyValue_Get_TypeName(PyObject* pyValue) const
fazekasgy@31: {
fazekasgy@31: 	PyObject *pyType = PyObject_Type(pyValue);
fazekasgy@31: 	if (!pyType) return std::string ("< unknown type >");
fazekasgy@31: 	PyObject *pyString = PyObject_Str(pyType);
fazekasgy@31: 	if (!pyString)
fazekasgy@31: 	{
fazekasgy@31: 		if (PyErr_Occurred()) {PyErr_Print(); PyErr_Clear();}
fazekasgy@31: 		Py_CLEAR(pyType);
fazekasgy@31: 		return std::string ("< unknown type >");
fazekasgy@31: 	}
fazekasgy@31: 	char *cstr = PyString_AS_STRING(pyString);
fazekasgy@31: 	if (!cstr)
fazekasgy@31: 	{
fazekasgy@31: 		if (PyErr_Occurred()) {PyErr_Print(); PyErr_Clear();}
fazekasgy@31: 		Py_DECREF(pyType);
fazekasgy@31: 		Py_CLEAR(pyString);
fazekasgy@31: 		cerr << "Warning: Object type name could not be found." << endl;
fazekasgy@31: 		return std::string("< unknown type >");
fazekasgy@31: 	}
fazekasgy@31: 	Py_DECREF(pyType);
fazekasgy@31: 	Py_DECREF(pyString);
fazekasgy@31: 	return std::string(cstr);
fazekasgy@31: }
fazekasgy@31: 
fazekasgy@31: bool
fazekasgy@31: PyTypeInterface::initMaps() const
fazekasgy@31: {
fazekasgy@31: 
fazekasgy@31: 	if (isMapInitialised) return true;
fazekasgy@31: 
fazekasgy@31: 	outKeys["identifier"] = o::identifier;
fazekasgy@31: 	outKeys["name"] = o::name;
fazekasgy@31: 	outKeys["description"] = o::description;
fazekasgy@31: 	outKeys["unit"] = o::unit;
fazekasgy@31: 	outKeys["hasFixedBinCount"] = o::hasFixedBinCount; 
fazekasgy@31: 	outKeys["binCount"] = o::binCount;
fazekasgy@31: 	outKeys["binNames"] = o::binNames;
fazekasgy@31: 	outKeys["hasKnownExtents"] = o::hasKnownExtents;
fazekasgy@31: 	outKeys["minValue"] = o::minValue;
fazekasgy@31: 	outKeys["maxValue"] = o::maxValue;
fazekasgy@31: 	outKeys["isQuantized"] = o::isQuantized;
fazekasgy@31: 	outKeys["quantizeStep"] = o::quantizeStep;
fazekasgy@31: 	outKeys["sampleType"] = o::sampleType;
fazekasgy@31: 	outKeys["sampleRate"] = o::sampleRate;
fazekasgy@31: 	outKeys["hasDuration"] = o::hasDuration;
fazekasgy@31: 
fazekasgy@31: 	sampleKeys["OneSamplePerStep"] = OneSamplePerStep;
fazekasgy@31: 	sampleKeys["FixedSampleRate"] = FixedSampleRate;
fazekasgy@31: 	sampleKeys["VariableSampleRate"] = VariableSampleRate;
fazekasgy@31: 
fazekasgy@31: 	ffKeys["hasTimestamp"] = hasTimestamp;
fazekasgy@31: 	ffKeys["timeStamp"] = timeStamp;
fazekasgy@31: 	ffKeys["hasDuration"] = hasDuration;
fazekasgy@31: 	ffKeys["duration"] = duration;
fazekasgy@31: 	ffKeys["values"] = values;
fazekasgy@31: 	ffKeys["label"] = label;
fazekasgy@31: 
fazekasgy@31: 	parmKeys["identifier"] = p::identifier;
fazekasgy@31: 	parmKeys["name"] = p::name;
fazekasgy@31: 	parmKeys["description"] = p::description;
fazekasgy@31: 	parmKeys["unit"] = p::unit;
fazekasgy@31: 	parmKeys["minValue"] = p::minValue;
fazekasgy@31: 	parmKeys["maxValue"] = p::maxValue;
fazekasgy@31: 	parmKeys["defaultValue"] = p::defaultValue;
fazekasgy@31: 	parmKeys["isQuantized"] = p::isQuantized;
fazekasgy@31: 	parmKeys["quantizeStep"] = p::quantizeStep;
fazekasgy@31: 
fazekasgy@31: 	isMapInitialised = true;
fazekasgy@31: 	return true;
fazekasgy@31: }