-#include "aubiowraphell.h"
+#include "aubio-types.h"
typedef struct
{
uint_t samplerate;
uint_t channels;
uint_t hop_size;
+ uint_t duration;
+ PyObject *read_to;
+ fvec_t c_read_to;
+ PyObject *mread_to;
+ fmat_t c_mread_to;
} Py_source;
static char Py_source_doc[] = ""
"\n"
"Close this source now.";
+static char Py_source_seek_doc[] = ""
+"x.seek(position)\n"
+"\n"
+"Seek to resampled frame position.";
+
static PyObject *
Py_source_new (PyTypeObject * pytype, PyObject * args, PyObject * kwds)
{
char_t* uri = NULL;
uint_t samplerate = 0;
uint_t hop_size = 0;
- static char *kwlist[] = { "uri", "samplerate", "hop_size", NULL };
+ uint_t channels = 0;
+ static char *kwlist[] = { "uri", "samplerate", "hop_size", "channels", NULL };
- if (!PyArg_ParseTupleAndKeywords (args, kwds, "|sII", kwlist,
- &uri, &samplerate, &hop_size)) {
+ if (!PyArg_ParseTupleAndKeywords (args, kwds, "|sIII", kwlist,
+ &uri, &samplerate, &hop_size, &channels)) {
return NULL;
}
return NULL;
}
+ self->channels = 1;
+ if ((sint_t)channels >= 0) {
+ self->channels = channels;
+ } else if ((sint_t)channels < 0) {
+ PyErr_SetString (PyExc_ValueError,
+ "can not use negative value for channels");
+ return NULL;
+ }
+
return (PyObject *) self;
}
{
self->o = new_aubio_source ( self->uri, self->samplerate, self->hop_size );
if (self->o == NULL) {
- PyErr_SetString (PyExc_StandardError, "error creating object");
+ PyErr_Format (PyExc_RuntimeError, "error creating source with \"%s\"",
+ self->uri);
return -1;
}
self->samplerate = aubio_source_get_samplerate ( self->o );
- self->channels = aubio_source_get_channels ( self->o );
+ if (self->channels == 0) {
+ self->channels = aubio_source_get_channels ( self->o );
+ }
+ self->duration = aubio_source_get_duration ( self->o );
+
+ self->read_to = new_py_fvec(self->hop_size);
+ self->mread_to = new_py_fmat(self->channels, self->hop_size);
return 0;
}
-AUBIO_DEL(source)
+static void
+Py_source_del (Py_source *self, PyObject *unused)
+{
+ if (self->o) {
+ del_aubio_source(self->o);
+ free(self->c_mread_to.data);
+ }
+ Py_XDECREF(self->read_to);
+ Py_XDECREF(self->mread_to);
+ Py_TYPE(self)->tp_free((PyObject *) self);
+}
+
/* function Py_source_do */
static PyObject *
Py_source_do(Py_source * self, PyObject * args)
{
-
-
- /* output vectors prototypes */
- fvec_t* read_to;
+ PyObject *outputs;
uint_t read;
-
-
-
-
-
-
- /* creating output read_to as a new_fvec of length self->hop_size */
- read_to = new_fvec (self->hop_size);
read = 0;
-
+ Py_INCREF(self->read_to);
+ if (!PyAubio_ArrayToCFvec(self->read_to, &(self->c_read_to))) {
+ return NULL;
+ }
/* compute _do function */
- aubio_source_do (self->o, read_to, &read);
+ aubio_source_do (self->o, &(self->c_read_to), &read);
- PyObject *outputs = PyList_New(0);
- PyList_Append( outputs, (PyObject *)PyAubio_CFvecToArray (read_to));
- //del_fvec (read_to);
- PyList_Append( outputs, (PyObject *)PyInt_FromLong (read));
+ outputs = PyTuple_New(2);
+ PyTuple_SetItem( outputs, 0, self->read_to );
+ PyTuple_SetItem( outputs, 1, (PyObject *)PyLong_FromLong(read));
return outputs;
}
static PyObject *
Py_source_do_multi(Py_source * self, PyObject * args)
{
-
-
- /* output vectors prototypes */
- fmat_t* read_to;
+ PyObject *outputs;
uint_t read;
-
-
-
-
-
-
- /* creating output read_to as a new_fvec of length self->hop_size */
- read_to = new_fmat (self->channels, self->hop_size);
read = 0;
-
+ Py_INCREF(self->mread_to);
+ if (!PyAubio_ArrayToCFmat(self->mread_to, &(self->c_mread_to))) {
+ return NULL;
+ }
/* compute _do function */
- aubio_source_do_multi (self->o, read_to, &read);
+ aubio_source_do_multi (self->o, &(self->c_mread_to), &read);
- PyObject *outputs = PyList_New(0);
- PyList_Append( outputs, (PyObject *)PyAubio_CFmatToArray (read_to));
- //del_fvec (read_to);
- PyList_Append( outputs, (PyObject *)PyInt_FromLong (read));
+ outputs = PyTuple_New(2);
+ PyTuple_SetItem( outputs, 0, self->mread_to);
+ PyTuple_SetItem( outputs, 1, (PyObject *)PyLong_FromLong(read));
return outputs;
}
-AUBIO_MEMBERS_START(source)
+static PyMemberDef Py_source_members[] = {
{"uri", T_STRING, offsetof (Py_source, uri), READONLY,
"path at which the source was created"},
{"samplerate", T_INT, offsetof (Py_source, samplerate), READONLY,
"number of channels found in the source"},
{"hop_size", T_INT, offsetof (Py_source, hop_size), READONLY,
"number of consecutive frames that will be read at each do or do_multi call"},
-AUBIO_MEMBERS_STOP(source)
-
+ {"duration", T_INT, offsetof (Py_source, duration), READONLY,
+ "total number of frames in the source (estimated)"},
+ { NULL } // sentinel
+};
static PyObject *
Pyaubio_source_get_samplerate (Py_source *self, PyObject *unused)
{
uint_t tmp = aubio_source_get_samplerate (self->o);
- return (PyObject *)PyInt_FromLong (tmp);
+ return (PyObject *)PyLong_FromLong (tmp);
}
static PyObject *
Pyaubio_source_get_channels (Py_source *self, PyObject *unused)
{
uint_t tmp = aubio_source_get_channels (self->o);
- return (PyObject *)PyInt_FromLong (tmp);
+ return (PyObject *)PyLong_FromLong (tmp);
}
static PyObject *
Py_RETURN_NONE;
}
+static PyObject *
+Pyaubio_source_seek (Py_source *self, PyObject *args)
+{
+ uint_t err = 0;
+
+ int position;
+ if (!PyArg_ParseTuple (args, "I", &position)) {
+ return NULL;
+ }
+
+ if (position < 0) {
+ PyErr_Format(PyExc_ValueError,
+ "error when seeking in source: can not seek to negative value %d",
+ position);
+ return NULL;
+ }
+
+ err = aubio_source_seek(self->o, position);
+ if (err != 0) {
+ PyErr_SetString (PyExc_ValueError,
+ "error when seeking in source");
+ return NULL;
+ }
+ Py_RETURN_NONE;
+}
+
static PyMethodDef Py_source_methods[] = {
{"get_samplerate", (PyCFunction) Pyaubio_source_get_samplerate,
METH_NOARGS, Py_source_get_samplerate_doc},
METH_NOARGS, Py_source_do_multi_doc},
{"close", (PyCFunction) Pyaubio_source_close,
METH_NOARGS, Py_source_close_doc},
+ {"seek", (PyCFunction) Pyaubio_source_seek,
+ METH_VARARGS, Py_source_seek_doc},
{NULL} /* sentinel */
};
-AUBIO_TYPEOBJECT(source, "aubio.source")
+PyTypeObject Py_sourceType = {
+ PyVarObject_HEAD_INIT (NULL, 0)
+ "aubio.source",
+ sizeof (Py_source),
+ 0,
+ (destructor) Py_source_del,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ (ternaryfunc)Py_source_do,
+ 0,
+ 0,
+ 0,
+ 0,
+ Py_TPFLAGS_DEFAULT,
+ Py_source_doc,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ Py_source_methods,
+ Py_source_members,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ (initproc) Py_source_init,
+ 0,
+ Py_source_new,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+};