comparison PyRealTime.cpp @ 37:27bab3a16c9a vampy2final

new branch Vampy2final

+/*
+
+ * Vampy : This plugin is a wrapper around the Vamp plugin API.
+ * It allows for writing Vamp plugins in Python.
+
+ * Centre for Digital Music, Queen Mary University of London.
+ * Copyright (C) 2008-2009 Gyorgy Fazekas, QMUL. (See Vamp sources 
+ * for licence information.)
+
+*/
+
+#include <Python.h>
+#include "PyRealTime.h"
+#include "vamp-sdk/Plugin.h"
+#include <string>
+
+using namespace std;
+using namespace Vamp;
+using Vamp::Plugin;
+using Vamp::RealTime;
+
+
+/* CONSTRUCTOR: New RealTime object from sec and nsec */
+static PyObject*
+RealTime_new(PyTypeObject *type, PyObject *args, PyObject *kw)
+{
+	unsigned int sec = 0;
+	unsigned int nsec = 0;
+	double unary = 0;
+	const char *fmt = NULL;
+
+	if (
+	/// new RealTime from ('format',float) e.g. ('seconds',2.34123)   
+	!PyArg_ParseTuple(args, "|sd:RealTime.new ", 
+	(const char *) &fmt, 
+	(double *) &unary) 	&&
+
+	/// new RealTime from (sec{int},nsec{int}) e.g. (2,34)
+	!PyArg_ParseTuple(args, "|II:RealTime.new ", 
+	(unsigned int*) &sec, 
+	(unsigned int*) &nsec) 
+		
+	) { 
+		PyErr_SetString(PyExc_TypeError, 
+		"RealTime initialised with wrong arguments.");
+		return NULL; 
+	  }
+
+	// PyErr_Clear();
+
+	// RealTimeObject *self = PyObject_New(RealTimeObject, &RealTime_Type); 
+	RealTimeObject *self = (RealTimeObject*)type->tp_alloc(type, 0);
+	
+	if (self == NULL) return NULL;
+
+	self->rt = NULL;
+
+	if (sec == 0 && nsec == 0 && fmt == 0) 
+		self->rt = new RealTime();
+	else if (fmt == 0)
+		self->rt = new RealTime(sec,nsec);
+	else { 
+        /// new RealTime from seconds or milliseconds: i.e. >>>RealTime('seconds',12.3)
+		if (!string(fmt).compare("float") ||
+			!string(fmt).compare("seconds"))  
+			self->rt = new RealTime( 
+			RealTime::fromSeconds((double) unary)); 
+
+		if (!string(fmt).compare("milliseconds")) {
+			self->rt = new RealTime( 
+			RealTime::fromSeconds((double) unary / 1000.0)); }
+	}
+
+	if (!self->rt) { 
+		PyErr_SetString(PyExc_TypeError, 
+		"RealTime initialised with wrong arguments.");
+		return NULL; 
+	}
+
+	return (PyObject *) self;
+}
+
+/* DESTRUCTOR: delete type object */
+static void
+RealTimeObject_dealloc(RealTimeObject *self)
+{
+	if (self->rt) delete self->rt; 	//delete the C object
+	PyObject_Del(self); //delete the Python object (original)
+	/// this requires PyType_Ready() which fills ob_type
+	// self->ob_type->tp_free((PyObject*)self); 
+}
+
+/*					 RealTime Object's Methods 					*/ 
+//these are internals not exposed by the module but the object
+
+/* Returns a Tuple containing sec and nsec values */
+static PyObject *
+RealTime_values(RealTimeObject *self)
+{
+	return Py_BuildValue("(ii)",self->rt->sec,self->rt->nsec);
+}
+
+/* Returns a Text representation */
+static PyObject *
+RealTime_toString(RealTimeObject *self, PyObject *args)
+{
+	return Py_BuildValue("s",self->rt->toText().c_str());
+}
+
+/* Frame representation */
+static PyObject *
+RealTime_toFrame(PyObject *self, PyObject *args)
+{
+	unsigned int samplerate;
+	
+	if ( !PyArg_ParseTuple(args, "I:realtime.toFrame object ", 
+	(unsigned int *) &samplerate )) {
+		PyErr_SetString(PyExc_ValueError,"Integer Sample Rate Required.");
+		return NULL;
+	}
+	
+	return Py_BuildValue("k", 
+	RealTime::realTime2Frame( 
+	*(const RealTime*) ((RealTimeObject*)self)->rt, 
+	(unsigned int) samplerate));
+}
+
+/* Conversion of realtime to a double precision floating point value */
+/* ...in Python called by e.g. float(realtime) */
+static PyObject *
+RealTime_float(PyObject *s)
+{
+	double drt = ((double) ((RealTimeObject*)s)->rt->sec + 
+	(double)((double) ((RealTimeObject*)s)->rt->nsec)/1000000000);
+	return PyFloat_FromDouble(drt);	
+}
+
+
+/* Type object's (RealTime) methods table */
+static PyMethodDef RealTime_methods[] = 
+{
+	{"values",	(PyCFunction)RealTime_values,	METH_NOARGS,
+		PyDoc_STR("values() -> Tuple of sec,nsec representation.")},
+
+	{"toString",	(PyCFunction)RealTime_toString,	METH_NOARGS,
+		PyDoc_STR("toString() -> Return a user-readable string to the nearest millisecond in a form like HH:MM:SS.mmm")},
+
+	{"toFrame",	(PyCFunction)RealTime_toFrame,	METH_VARARGS,
+		PyDoc_STR("toFrame(samplerate) -> Sample count for given sample rate.")},
+
+	{"toFloat",	(PyCFunction)RealTime_float,	METH_NOARGS,
+		PyDoc_STR("toFloat() -> Floating point representation.")},
+	
+	{NULL,		NULL}		/* sentinel */
+};
+
+
+/*		   			 Methods implementing protocols 		   	     */ 
+// these functions are called by the interpreter 
+
+/*					 Object Protocol 					*/
+
+static int
+RealTime_setattr(RealTimeObject *self, char *name, PyObject *value)
+{
+
+	if ( !string(name).compare("sec")) { 
+		self->rt->sec= (int) PyInt_AS_LONG(value);
+		return 0;
+	}
+
+	if ( !string(name).compare("nsec")) { 
+		self->rt->nsec= (int) PyInt_AS_LONG(value);
+		return 0;
+	}
+
+	return -1;
+}
+
+static PyObject *
+RealTime_getattr(RealTimeObject *self, char *name)
+{
+
+	if ( !string(name).compare("sec") ) { 
+		return PyInt_FromSsize_t(
+		(Py_ssize_t) self->rt->sec); 
+	} 
+
+	if ( !string(name).compare("nsec") ) { 
+		return PyInt_FromSsize_t(
+		(Py_ssize_t) self->rt->nsec); 
+	} 
+
+	return Py_FindMethod(RealTime_methods, 
+	(PyObject *)self, name);
+}
+
+/* String representation called by e.g. str(realtime), print realtime*/
+static PyObject *
+RealTime_repr(PyObject *self)
+{
+	return Py_BuildValue("s",
+	((RealTimeObject*)self)->rt->toString().c_str());
+}
+
+
+/*					 Number Protocol 					*/
+/// Only add and substract make sense, or what about the
+/// square root of Monday morning?
+/// Divide by integer maybe for durations?
+
+static PyObject *
+RealTime_add(PyObject *s, PyObject *w)
+{
+	RealTimeObject *result = 
+    PyObject_New(RealTimeObject, &RealTime_Type); 
+	if (result == NULL) return NULL;
+
+	result->rt = new RealTime(
+	*((RealTimeObject*)s)->rt + *((RealTimeObject*)w)->rt);
+	return (PyObject*)result;
+}
+
+static PyObject *
+RealTime_subtract(PyObject *s, PyObject *w)
+{
+	RealTimeObject *result = 
+    PyObject_New(RealTimeObject, &RealTime_Type); 
+	if (result == NULL) return NULL;
+
+	result->rt = new RealTime(
+	*((RealTimeObject*)s)->rt - *((RealTimeObject*)w)->rt);
+	return (PyObject*)result;
+}
+
+static PyNumberMethods realtime_as_number = 
+{
+	RealTime_add,			/*nb_add*/
+	RealTime_subtract,		/*nb_subtract*/
+	0,						/*nb_multiply*/
+	0,				 		/*nb_divide*/
+    0,						/*nb_remainder*/
+    0,      	            /*nb_divmod*/
+    0,                   	/*nb_power*/
+    0,                  	/*nb_neg*/
+    0,                		/*nb_pos*/
+    0,                  	/*(unaryfunc)array_abs,*/
+    0,                    	/*nb_nonzero*/
+    0,                    	/*nb_invert*/
+    0,       				/*nb_lshift*/
+    0,      				/*nb_rshift*/
+    0,      				/*nb_and*/
+    0,      				/*nb_xor*/
+    0,       				/*nb_or*/
+    0,                      /*nb_coerce*/
+    0,						/*nb_int*/
+    0,				        /*nb_long*/
+    (unaryfunc)RealTime_float,/*nb_float*/
+    0,               		/*nb_oct*/
+    0,               		/*nb_hex*/
+};
+
+/*						REAL-TIME TYPE OBJECT						*/
+
+#define RealTime_alloc PyType_GenericAlloc
+#define RealTime_free PyObject_Del
+
+/* Doc:: 10.3 Type Objects */ /* static */ 
+PyTypeObject RealTime_Type = 
+{
+	PyObject_HEAD_INIT(NULL)
+	0,						/*ob_size*/
+	"vampy.RealTime",				/*tp_name*/
+	sizeof(RealTimeObject),	/*tp_basicsize*/
+	0,//sizeof(RealTime),		/*tp_itemsize*/
+	/*	 	methods	 	*/
+	(destructor)RealTimeObject_dealloc, /*tp_dealloc*/
+	0,						/*tp_print*/
+	(getattrfunc)RealTime_getattr, /*tp_getattr*/
+	(setattrfunc)RealTime_setattr, /*tp_setattr*/
+	0,						/*tp_compare*/
+	RealTime_repr,			/*tp_repr*/
+	&realtime_as_number,	/*tp_as_number*/
+	0,						/*tp_as_sequence*/
+	0,						/*tp_as_mapping*/
+	0,						/*tp_hash*/
+	0,//(ternaryfunc)RealTime_new,                      /*tp_call*/
+    0,                      /*tp_str*/
+    0,                      /*tp_getattro*/
+    0,                      /*tp_setattro*/
+    0,                      /*tp_as_buffer*/
+    Py_TPFLAGS_DEFAULT,     /*tp_flags*/
+    "RealTime Object",      /*tp_doc*/
+    0,                      /*tp_traverse*/
+    0,                      /*tp_clear*/
+    0,                      /*tp_richcompare*/
+    0,                      /*tp_weaklistoffset*/
+    0,                      /*tp_iter*/
+    0,                      /*tp_iternext*/
+    RealTime_methods,       /*tp_methods*/ //TypeObject Methods
+    0,                      /*tp_members*/
+    0,                      /*tp_getset*/
+    0,                      /*tp_base*/
+    0,                      /*tp_dict*/
+    0,                      /*tp_descr_get*/
+    0,                      /*tp_descr_set*/
+    0,                      /*tp_dictoffset*/
+    0,                      /*tp_init*/
+    RealTime_alloc,         /*tp_alloc*/
+	RealTime_new,           /*tp_new*/
+    RealTime_free,			/*tp_free*/
+    0,                      /*tp_is_gc*/
+};
+
+
+
+/*		  		 	  PyRealTime C++ API  	  		  				*/
+
+/*PyRealTime from RealTime pointer
+PyObject* 
+PyRealTime_FromRealTime(Vamp::RealTime *rt) {
+
+	RealTimeObject *self =
+	PyObject_New(RealTimeObject, &RealTime_Type); 
+	if (self == NULL) return NULL;
+
+	self->rt = new RealTime(*rt);
+	return (PyObject*) self;
+}*/
+
+
+/*PyRealTime from RealTime*/
+PyObject* 
+PyRealTime_FromRealTime(Vamp::RealTime& rt) {
+
+	RealTimeObject *self =
+	PyObject_New(RealTimeObject, &RealTime_Type); 
+	if (self == NULL) return NULL;
+
+	self->rt = new RealTime(rt);
+	return (PyObject*) self;
+}
+
+/*RealTime* from PyRealTime*/
+const Vamp::RealTime*
+PyRealTime_AsRealTime (PyObject *self) { 
+
+	RealTimeObject *s = (RealTimeObject*) self; 
+
+	if (!PyRealTime_Check(s)) {
+		PyErr_SetString(PyExc_TypeError, "RealTime Object Expected.");
+		cerr << "in call PyRealTime_AsPointer(): RealTime Object Expected. " << endl;
+		return NULL; }
+	return s->rt; 
+};
+