python/ext: simplify memory allocations, removed unneeded malloc/free calls

Paul Brossier committed 10 years ago

Commit 569b3631 parent a35db129 files · +75 −125Browse files

Showing the changes to python/ext (8 of 9 files). Show all

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8 files

python/ext/aubiomodule.c +10 −18
python/ext/aubioproxy.c +7 −9
python/ext/py-fft.c +10 −12
python/ext/py-filter.c +5 −7
python/ext/py-filterbank.c +10 −21
python/ext/py-musicutils.c +12 −24
python/ext/py-phasevoc.c +6 −13
python/ext/py-sink.c +7 −13

@@ -83,7 +83,7 @@ static PyObject * · 82 unmodified lines
83	83	Py_alpha_norm (PyObject * self, PyObject * args)
84	84	{
85	85	PyObject *input;
86		− fvec_t *vec;
	86	+ fvec_t vec;
87	87	smpl_t alpha;
88	88	PyObject *result;
89	89
@@ -95,15 +95,12 @@ Py_alpha_norm (PyObject * self, PyObject * args) · 5 unmodified lines
95	95	return NULL;
96	96	}
97	97
98		− vec = (fvec_t *)malloc(sizeof(fvec_t));
99		− if (!PyAubio_ArrayToCFvec(input, vec)) {
100		− free(vec);
	98	+ if (!PyAubio_ArrayToCFvec(input, &vec)) {
101	99	return NULL;
102	100	}
103	101
104	102	// compute the function
105		− result = Py_BuildValue ("f", fvec_alpha_norm (vec, alpha));
106		− free(vec);
	103	+ result = Py_BuildValue ("f", fvec_alpha_norm (&vec, alpha));
107	104	if (result == NULL) {
108	105	return NULL;
109	106	}
@@ -175,7 +172,7 @@ static PyObject * · 65 unmodified lines
175	172	Py_zero_crossing_rate (PyObject * self, PyObject * args)
176	173	{
177	174	PyObject *input;
178		− fvec_t *vec;
	175	+ fvec_t vec;
179	176	PyObject *result;
180	177
181	178	if (!PyArg_ParseTuple (args, "O:zero_crossing_rate", &input)) {
@@ -186,15 +183,12 @@ Py_zero_crossing_rate (PyObject * self, PyObject * args) · 4 unmodified lines
186	183	return NULL;
187	184	}
188	185
189		− vec = (fvec_t *)malloc(sizeof(fvec_t));
190		− if (!PyAubio_ArrayToCFvec(input, vec)) {
191		− free(vec);
	186	+ if (!PyAubio_ArrayToCFvec(input, &vec)) {
192	187	return NULL;
193	188	}
194	189
195	190	// compute the function
196		− result = Py_BuildValue ("f", aubio_zero_crossing_rate (vec));
197		− free(vec);
	191	+ result = Py_BuildValue ("f", aubio_zero_crossing_rate (&vec));
198	192	if (result == NULL) {
199	193	return NULL;
200	194	}
@@ -206,7 +200,7 @@ static PyObject * · 5 unmodified lines
206	200	Py_min_removal(PyObject * self, PyObject * args)
207	201	{
208	202	PyObject *input;
209		− fvec_t *vec;
	203	+ fvec_t vec;
210	204
211	205	if (!PyArg_ParseTuple (args, "O:min_removal", &input)) {
212	206	return NULL;
@@ -216,19 +210,17 @@ Py_min_removal(PyObject * self, PyObject * args) · 3 unmodified lines
216	210	return NULL;
217	211	}
218	212
219		− vec = (fvec_t *)malloc(sizeof(fvec_t));
220		− if (!PyAubio_ArrayToCFvec(input, vec)) {
221		− free(vec);
	213	+ if (!PyAubio_ArrayToCFvec(input, &vec)) {
222	214	return NULL;
223	215	}
224	216
225	217	// compute the function
226		− fvec_min_removal (vec);
	218	+ fvec_min_removal (&vec);
227	219
228	220	// since this function does not return, we could return None
229	221	//Py_RETURN_NONE;
230	222	// however it is convenient to return the modified vector
231		− return (PyObject *) PyAubio_CFvecToArray(vec);
	223	+ return (PyObject *) PyAubio_CFvecToArray(&vec);
232	224	// or even without converting it back to an array
233	225	//Py_INCREF(vec);
234	226	//return (PyObject *)vec;

python/ext/aubioproxy.c+7−9

@@ -143,17 +143,15 @@ PyAubio_ArrayToCFmat (PyObject input, fmat_t mat) { · 142 unmodified lines
143	143	return 0;
144	144	}
145	145
146		− if (mat->height != (uint_t)PyArray_DIM ((PyArrayObject *)input, 0)) {
147		− /*
148		− free(mat->data);
149		− mat->height = (uint_t)PyArray_DIM ((PyArrayObject *)input, 0);
150		− mat->data = (smpl_t *)malloc(sizeof(smpl_t) * mat->height);
151		− */
152		− PyErr_Format(PyExc_ValueError, "too many rows, %d but %ld expected",
153		− mat->height, PyArray_DIM ((PyArrayObject *)input, 0) );
154		− return 0;
	146	+ uint_t new_height = (uint_t)PyArray_DIM ((PyArrayObject *)input, 0);
	147	+ if (mat->height != new_height) {
	148	+ if (mat->data) {
	149	+ free(mat->data);
	150	+ }
	151	+ mat->data = (smpl_t *)malloc(sizeof(smpl_t) * new_height);
155	152	}
156	153
	154	+ mat->height = new_height;
157	155	mat->length = (uint_t)PyArray_DIM ((PyArrayObject *)input, 1);
158	156	for (i=0; i< mat->height; i++) {
159	157	mat->data[i] = (smpl_t)PyArray_GETPTR1 ((PyArrayObject )input, i);

python/ext/py-fft.c+10−12

@@ -7,11 +7,14 @@ typedef struct · 6 unmodified lines
7	7	PyObject_HEAD
8	8	aubio_fft_t * o;
9	9	uint_t win_s;
10		− fvec_t *vecin;
	10	+ // do / rdo input vectors
	11	+ fvec_t vecin;
	12	+ cvec_t cvecin;
	13	+ // do / rdo output results
11	14	cvec_t *out;
12		− Py_cvec *py_out;
13		− cvec_t *cvecin;
14	15	fvec_t *rout;
	16	+ // bridge for cvec output
	17	+ Py_cvec *py_out;
15	18	} Py_fft;
16	19
17	20	static PyObject *
@@ -56,9 +59,6 @@ Py_fft_init (Py_fft * self, PyObject * args, PyObject * kwds) · 38 unmodified lines
56	59	return -1;
57	60	}
58	61
59		− self->cvecin = (cvec_t *)malloc(sizeof(cvec_t));
60		− self->vecin = (fvec_t *)malloc(sizeof(fvec_t));
61		−
62	62	self->out = new_cvec(self->win_s);
63	63	self->py_out = (Py_cvec*) PyObject_New (Py_cvec, &Py_cvecType);
64	64	Py_XINCREF(self->py_out);
@@ -74,8 +74,6 @@ Py_fft_del (Py_fft self, PyObject unused) · 9 unmodified lines
74	74	del_aubio_fft(self->o);
75	75	del_cvec(self->out);
76	76	del_fvec(self->rout);
77		− free(self->cvecin);
78		− free(self->vecin);
79	77	Py_TYPE(self)->tp_free((PyObject *) self);
80	78	}
81	79
@@ -88,12 +86,12 @@ Py_fft_do(Py_fft * self, PyObject * args) · 6 unmodified lines
88	86	return NULL;
89	87	}
90	88
91		− if (!PyAubio_ArrayToCFvec(input, self->vecin)) {
	89	+ if (!PyAubio_ArrayToCFvec(input, &(self->vecin))) {
92	90	return NULL;
93	91	}
94	92
95	93	// compute the function
96		− aubio_fft_do (((Py_fft *)self)->o, self->vecin, self->out);
	94	+ aubio_fft_do (((Py_fft *)self)->o, &(self->vecin), self->out);
97	95	#if 0
98	96	Py_cvec * py_out = (Py_cvec*) PyObject_New (Py_cvec, &Py_cvecType);
99	97	PyObject* output = PyAubio_CCvecToPyCvec(self->out, py_out);
@@ -119,12 +117,12 @@ Py_fft_rdo(Py_fft * self, PyObject * args) · 19 unmodified lines
119	117	return NULL;
120	118	}
121	119
122		− if (!PyAubio_ArrayToCCvec (input, self->cvecin) ) {
	120	+ if (!PyAubio_ArrayToCCvec (input, &(self->cvecin)) ) {
123	121	return NULL;
124	122	}
125	123
126	124	// compute the function
127		− aubio_fft_rdo (self->o, self->cvecin, self->rout);
	125	+ aubio_fft_rdo (self->o, &(self->cvecin), self->rout);
128	126	return PyAubio_CFvecToArray(self->rout);
129	127	}
130	128

python/ext/py-filter.c+5−7

@@ -5,7 +5,7 @@ typedef struct · 4 unmodified lines
5	5	PyObject_HEAD
6	6	aubio_filter_t * o;
7	7	uint_t order;
8		− fvec_t *vec;
	8	+ fvec_t vec;
9	9	fvec_t *out;
10	10	} Py_filter;
11	11
@@ -50,7 +50,6 @@ Py_filter_init (Py_filter * self, PyObject * args, PyObject * kwds) · 38 unmodified lines
50	50	return -1;
51	51	}
52	52	self->out = new_fvec(Py_default_vector_length);
53		− self->vec = (fvec_t *)malloc(sizeof(fvec_t));
54	53	return 0;
55	54	}
56	55
@@ -59,7 +58,6 @@ Py_filter_del (Py_filter * self) · 2 unmodified lines
59	58	{
60	59	del_fvec(self->out);
61	60	del_aubio_filter (self->o);
62		− free(self->vec);
63	61	Py_TYPE(self)->tp_free ((PyObject *) self);
64	62	}
65	63
@@ -76,17 +74,17 @@ Py_filter_do(Py_filter * self, PyObject * args) · 10 unmodified lines
76	74	return NULL;
77	75	}
78	76
79		− if (!PyAubio_ArrayToCFvec(input, self->vec)) {
	77	+ if (!PyAubio_ArrayToCFvec(input, &(self->vec))) {
80	78	return NULL;
81	79	}
82	80
83	81	// reallocate the output if needed
84		− if (self->vec->length != self->out->length) {
	82	+ if (self->vec.length != self->out->length) {
85	83	del_fvec(self->out);
86		− self->out = new_fvec(self->vec->length);
	84	+ self->out = new_fvec(self->vec.length);
87	85	}
88	86	// compute the function
89		− aubio_filter_do_outplace (self->o, self->vec, self->out);
	87	+ aubio_filter_do_outplace (self->o, &(self->vec), self->out);
90	88	return PyAubio_CFvecToArray(self->out);
91	89	}
92	90

python/ext/py-filterbank.c+10−21

@@ -8,10 +8,10 @@ typedef struct · 7 unmodified lines
8	8	aubio_filterbank_t * o;
9	9	uint_t n_filters;
10	10	uint_t win_s;
11		− cvec_t *vec;
	11	+ cvec_t vec;
	12	+ fvec_t freqs;
	13	+ fmat_t coeffs;
12	14	fvec_t *out;
13		− fvec_t *freqs;
14		− fmat_t *coeffs;
15	15	} Py_filterbank;
16	16
17	17	static PyObject *
@@ -66,14 +66,6 @@ Py_filterbank_init (Py_filterbank * self, PyObject * args, PyObject * kwds) · 48 unmodified lines
66	66	}
67	67	self->out = new_fvec(self->n_filters);
68	68
69		− self->vec = (cvec_t *)malloc(sizeof(cvec_t));
70		−
71		− self->freqs = (fvec_t *)malloc(sizeof(fvec_t));
72		−
73		− self->coeffs = (fmat_t *)malloc(sizeof(fmat_t));
74		− self->coeffs->data = (smpl_t *)malloc(sizeof(smpl_t) * self->n_filters);
75		− self->coeffs->height = self->n_filters;
76		−
77	69	return 0;
78	70	}
79	71
@@ -82,10 +74,7 @@ Py_filterbank_del (Py_filterbank self, PyObject unused) · 2 unmodified lines
82	74	{
83	75	del_aubio_filterbank(self->o);
84	76	del_fvec(self->out);
85		− free(self->vec);
86		− free(self->freqs);
87		− free(self->coeffs->data);
88		− free(self->coeffs);
	77	+ free(self->coeffs.data);
89	78	Py_TYPE(self)->tp_free((PyObject *) self);
90	79	}
91	80
@@ -98,12 +87,12 @@ Py_filterbank_do(Py_filterbank * self, PyObject * args) · 6 unmodified lines
98	87	return NULL;
99	88	}
100	89
101		− if (!PyAubio_ArrayToCCvec(input, self->vec)) {
	90	+ if (!PyAubio_ArrayToCCvec(input, &(self->vec) )) {
102	91	return NULL;
103	92	}
104	93
105	94	// compute the function
106		− aubio_filterbank_do (self->o, self->vec, self->out);
	95	+ aubio_filterbank_do (self->o, &(self->vec), self->out);
107	96	return (PyObject *)PyAubio_CFvecToArray(self->out);
108	97	}
109	98
@@ -130,12 +119,12 @@ Py_filterbank_set_triangle_bands (Py_filterbank * self, PyObject *args) · 20 unmodified lines
130	119	return NULL;
131	120	}
132	121
133		− if (!PyAubio_ArrayToCFvec(input, self->freqs)) {
	122	+ if (!PyAubio_ArrayToCFvec(input, &(self->freqs) )) {
134	123	return NULL;
135	124	}
136	125
137	126	err = aubio_filterbank_set_triangle_bands (self->o,
138		− self->freqs, samplerate);
	127	+ &(self->freqs), samplerate);
139	128	if (err > 0) {
140	129	PyErr_SetString (PyExc_ValueError,
141	130	"error when setting filter to A-weighting");
@@ -173,11 +162,11 @@ Py_filterbank_set_coeffs (Py_filterbank * self, PyObject *args) · 31 unmodified lines
173	162	return NULL;
174	163	}
175	164
176		− if (!PyAubio_ArrayToCFmat(input, self->coeffs)) {
	165	+ if (!PyAubio_ArrayToCFmat(input, &(self->coeffs))) {
177	166	return NULL;
178	167	}
179	168
180		− err = aubio_filterbank_set_coeffs (self->o, self->coeffs);
	169	+ err = aubio_filterbank_set_coeffs (self->o, &(self->coeffs));
181	170
182	171	if (err > 0) {
183	172	PyErr_SetString (PyExc_ValueError,

python/ext/py-musicutils.c+12−24

@@ -25,7 +25,7 @@ PyObject * · 24 unmodified lines
25	25	Py_aubio_level_lin(PyObject self, PyObject args)
26	26	{
27	27	PyObject *input;
28		− fvec_t *vec;
	28	+ fvec_t vec;
29	29	PyObject *level_lin;
30	30
31	31	if (!PyArg_ParseTuple (args, "O:level_lin", &input)) {
@@ -37,14 +37,11 @@ Py_aubio_level_lin(PyObject self, PyObject args) · 5 unmodified lines
37	37	return NULL;
38	38	}
39	39
40		− vec = (fvec_t *)malloc(sizeof(fvec_t));
41		− if (!PyAubio_ArrayToCFvec(input, vec)) {
42		− free(vec);
	40	+ if (!PyAubio_ArrayToCFvec(input, &vec)) {
43	41	return NULL;
44	42	}
45	43
46		− level_lin = Py_BuildValue("f", aubio_level_lin(vec));
47		− free(vec);
	44	+ level_lin = Py_BuildValue("f", aubio_level_lin(&vec));
48	45	if (level_lin == NULL) {
49	46	PyErr_SetString (PyExc_ValueError, "failed computing level_lin");
50	47	return NULL;
@@ -57,7 +54,7 @@ PyObject * · 6 unmodified lines
57	54	Py_aubio_db_spl(PyObject self, PyObject args)
58	55	{
59	56	PyObject *input;
60		− fvec_t *vec;
	57	+ fvec_t vec;
61	58	PyObject *db_spl;
62	59
63	60	if (!PyArg_ParseTuple (args, "O:db_spl", &input)) {
@@ -69,14 +66,11 @@ Py_aubio_db_spl(PyObject self, PyObject args) · 5 unmodified lines
69	66	return NULL;
70	67	}
71	68
72		− vec = (fvec_t *)malloc(sizeof(fvec_t));
73		− if (!PyAubio_ArrayToCFvec(input, vec)) {
74		− free(vec);
	69	+ if (!PyAubio_ArrayToCFvec(input, &vec)) {
75	70	return NULL;
76	71	}
77	72
78		− db_spl = Py_BuildValue("f", aubio_db_spl(vec));
79		− free(vec);
	73	+ db_spl = Py_BuildValue("f", aubio_db_spl(&vec));
80	74	if (db_spl == NULL) {
81	75	PyErr_SetString (PyExc_ValueError, "failed computing db_spl");
82	76	return NULL;
@@ -89,7 +83,7 @@ PyObject * · 6 unmodified lines
89	83	Py_aubio_silence_detection(PyObject self, PyObject args)
90	84	{
91	85	PyObject *input;
92		− fvec_t *vec;
	86	+ fvec_t vec;
93	87	PyObject *silence_detection;
94	88	smpl_t threshold;
95	89
@@ -102,14 +96,11 @@ Py_aubio_silence_detection(PyObject self, PyObject args) · 6 unmodified lines
102	96	return NULL;
103	97	}
104	98
105		− vec = (fvec_t *)malloc(sizeof(fvec_t));
106		− if (!PyAubio_ArrayToCFvec(input, vec)) {
107		− free(vec);
	99	+ if (!PyAubio_ArrayToCFvec(input, &vec)) {
108	100	return NULL;
109	101	}
110	102
111		− silence_detection = Py_BuildValue("I", aubio_silence_detection(vec, threshold));
112		− free(vec);
	103	+ silence_detection = Py_BuildValue("I", aubio_silence_detection(&vec, threshold));
113	104	if (silence_detection == NULL) {
114	105	PyErr_SetString (PyExc_ValueError, "failed computing silence_detection");
115	106	return NULL;
@@ -122,7 +113,7 @@ PyObject * · 6 unmodified lines
122	113	Py_aubio_level_detection(PyObject self, PyObject args)
123	114	{
124	115	PyObject *input;
125		− fvec_t *vec;
	116	+ fvec_t vec;
126	117	PyObject *level_detection;
127	118	smpl_t threshold;
128	119
@@ -135,14 +126,11 @@ Py_aubio_level_detection(PyObject self, PyObject args) · 6 unmodified lines
135	126	return NULL;
136	127	}
137	128
138		− vec = (fvec_t *)malloc(sizeof(fvec_t));
139		− if (!PyAubio_ArrayToCFvec(input, vec)) {
140		− free(vec);
	129	+ if (!PyAubio_ArrayToCFvec(input, &vec)) {
141	130	return NULL;
142	131	}
143	132
144		− level_detection = Py_BuildValue("f", aubio_level_detection(vec, threshold));
145		− free(vec);
	133	+ level_detection = Py_BuildValue("f", aubio_level_detection(&vec, threshold));
146	134	if (level_detection == NULL) {
147	135	PyErr_SetString (PyExc_ValueError, "failed computing level_detection");
148	136	return NULL;

python/ext/py-phasevoc.c+6−13

@@ -1,17 +1,15 @@
1	1	#include "aubio-types.h"
2	2
3		−static char Py_pvoc_doc[] = "pvoc object";
4		−
5	3	typedef struct
6	4	{
7	5	PyObject_HEAD
8	6	aubio_pvoc_t * o;
9	7	uint_t win_s;
10	8	uint_t hop_s;
11		− fvec_t *vecin;
	9	+ fvec_t vecin;
12	10	cvec_t *output;
13	11	Py_cvec *py_out;
14		− cvec_t *cvecin;
	12	+ cvec_t cvecin;
15	13	fvec_t *routput;
16	14	} Py_pvoc;
17	15
@@ -71,9 +69,6 @@ Py_pvoc_init (Py_pvoc * self, PyObject * args, PyObject * kwds) · 53 unmodified lines
71	69	return -1;
72	70	}
73	71
74		− self->cvecin = (cvec_t *)malloc(sizeof(cvec_t));
75		− self->vecin = (fvec_t *)malloc(sizeof(fvec_t));
76		−
77	72	self->output = new_cvec(self->win_s);
78	73	self->py_out = (Py_cvec*) PyObject_New (Py_cvec, &Py_cvecType);
79	74	self->routput = new_fvec(self->hop_s);
@@ -88,8 +83,6 @@ Py_pvoc_del (Py_pvoc self, PyObject unused) · 8 unmodified lines
88	83	del_aubio_pvoc(self->o);
89	84	del_cvec(self->output);
90	85	del_fvec(self->routput);
91		− free(self->cvecin);
92		− free(self->vecin);
93	86	Py_TYPE(self)->tp_free((PyObject *) self);
94	87	}
95	88
@@ -103,12 +96,12 @@ Py_pvoc_do(Py_pvoc * self, PyObject * args) · 7 unmodified lines
103	96	return NULL;
104	97	}
105	98
106		− if (!PyAubio_ArrayToCFvec (input, self->vecin)) {
	99	+ if (!PyAubio_ArrayToCFvec (input, &(self->vecin) )) {
107	100	return NULL;
108	101	}
109	102
110	103	// compute the function
111		− aubio_pvoc_do (self->o, self->vecin, self->output);
	104	+ aubio_pvoc_do (self->o, &(self->vecin), self->output);
112	105	#if 0
113	106	Py_cvec * py_out = (Py_cvec*) PyObject_New (Py_cvec, &Py_cvecType);
114	107	PyObject* output = PyAubio_CCvecToPyCvec(self->output, py_out);
@@ -135,12 +128,12 @@ Py_pvoc_rdo(Py_pvoc * self, PyObject * args) · 20 unmodified lines
135	128	return NULL;
136	129	}
137	130
138		− if (!PyAubio_ArrayToCCvec (input, self->cvecin)) {
	131	+ if (!PyAubio_ArrayToCCvec (input, &(self->cvecin) )) {
139	132	return NULL;
140	133	}
141	134
142	135	// compute the function
143		− aubio_pvoc_rdo (self->o, self->cvecin, self->routput);
	136	+ aubio_pvoc_rdo (self->o, &(self->cvecin), self->routput);
144	137	return PyAubio_CFvecToArray(self->routput);
145	138	}
146	139

python/ext/py-sink.c+7−13

@@ -7,8 +7,8 @@ typedef struct · 6 unmodified lines
7	7	char_t* uri;
8	8	uint_t samplerate;
9	9	uint_t channels;
10		− fvec_t *write_data;
11		− fmat_t *mwrite_data;
	10	+ fvec_t write_data;
	11	+ fmat_t mwrite_data;
12	12	} Py_sink;
13	13
14	14	static char Py_sink_doc[] = ""
@@ -123,10 +123,6 @@ Py_sink_init (Py_sink * self, PyObject * args, PyObject * kwds) · 108 unmodified lines
123	123	self->samplerate = aubio_sink_get_samplerate ( self->o );
124	124	self->channels = aubio_sink_get_channels ( self->o );
125	125
126		− self->write_data = (fvec_t *)malloc(sizeof(fvec_t));
127		− self->mwrite_data = (fmat_t *)malloc(sizeof(fmat_t));
128		− self->mwrite_data->height = self->channels;
129		− self->mwrite_data->data = (smpl_t *)malloc(sizeof(smpl_t) * self->channels);
130	126	return 0;
131	127	}
132	128
@@ -134,9 +130,7 @@ static void · 1 unmodified line
134	130	Py_sink_del (Py_sink self, PyObject unused)
135	131	{
136	132	del_aubio_sink(self->o);
137		− free(self->write_data);
138		− free(self->mwrite_data->data);
139		− free(self->mwrite_data);
	133	+ free(self->mwrite_data.data);
140	134	Py_TYPE(self)->tp_free((PyObject *) self);
141	135	}
142	136
@@ -156,13 +150,13 @@ Py_sink_do(Py_sink * self, PyObject * args) · 13 unmodified lines
156	150	}
157	151
158	152	/* input vectors parsing */
159		− if (!PyAubio_ArrayToCFvec(write_data_obj, self->write_data)) {
	153	+ if (!PyAubio_ArrayToCFvec(write_data_obj, &(self->write_data))) {
160	154	return NULL;
161	155	}
162	156
163	157
164	158	/* compute _do function */
165		− aubio_sink_do (self->o, self->write_data, write);
	159	+ aubio_sink_do (self->o, &(self->write_data), write);
166	160
167	161	Py_RETURN_NONE;
168	162	}
@@ -184,12 +178,12 @@ Py_sink_do_multi(Py_sink * self, PyObject * args) · 15 unmodified lines
184	178
185	179
186	180	/* input vectors parsing */
187		− if (!PyAubio_ArrayToCFmat(write_data_obj, self->mwrite_data)) {
	181	+ if (!PyAubio_ArrayToCFmat(write_data_obj, &(self->mwrite_data))) {
188	182	return NULL;
189	183	}
190	184
191	185	/* compute _do function */
192		− aubio_sink_do_multi (self->o, self->mwrite_data, write);
	186	+ aubio_sink_do_multi (self->o, &(self->mwrite_data), write);
193	187	Py_RETURN_NONE;
194	188	}
195	189

python/ext: simplify memory allocations, removed unneeded malloc/free calls

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