source: python/ext/py-sink.c @ 140b460

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5sampler
Last change on this file since 140b460 was b81a642, checked in by Paul Brossier <piem@piem.org>, 7 years ago

python/ext/py-sink.c: always set samplerate and channels in init

  • Property mode set to 100644
File size: 5.1 KB
Line 
1#include "aubio-types.h"
2
3typedef struct
4{
5  PyObject_HEAD
6  aubio_sink_t * o;
7  char_t* uri;
8  uint_t samplerate;
9  uint_t channels;
10  fvec_t write_data;
11  fmat_t mwrite_data;
12} Py_sink;
13
14static char Py_sink_doc[] = ""
15"  __new__(path, samplerate = 44100, channels = 1)\n"
16"\n"
17"      Create a new sink, opening the given path for writing.\n"
18"\n"
19"      Examples\n"
20"      --------\n"
21"\n"
22"      Create a new sink at 44100Hz, mono:\n"
23"\n"
24"      >>> sink('/tmp/t.wav')\n"
25"\n"
26"      Create a new sink at 8000Hz, mono:\n"
27"\n"
28"      >>> sink('/tmp/t.wav', samplerate = 8000)\n"
29"\n"
30"      Create a new sink at 32000Hz, stereo:\n"
31"\n"
32"      >>> sink('/tmp/t.wav', samplerate = 32000, channels = 2)\n"
33"\n"
34"      Create a new sink at 32000Hz, 5 channels:\n"
35"\n"
36"      >>> sink('/tmp/t.wav', channels = 5, samplerate = 32000)\n"
37"\n"
38"  __call__(vec, write)\n"
39"      x(vec,write) <==> x.do(vec, write)\n"
40"\n"
41"      Write vector to sink.\n"
42"\n"
43"      See also\n"
44"      --------\n"
45"      aubio.sink.do\n"
46"\n";
47
48static char Py_sink_do_doc[] = ""
49"x.do(vec, write) <==> x(vec, write)\n"
50"\n"
51"write monophonic vector to sink";
52
53static char Py_sink_do_multi_doc[] = ""
54"x.do_multi(mat, write)\n"
55"\n"
56"write polyphonic vector to sink";
57
58static char Py_sink_close_doc[] = ""
59"x.close()\n"
60"\n"
61"close this sink now";
62
63static PyObject *
64Py_sink_new (PyTypeObject * pytype, PyObject * args, PyObject * kwds)
65{
66  Py_sink *self;
67  char_t* uri = NULL;
68  uint_t samplerate = 0;
69  uint_t channels = 0;
70  static char *kwlist[] = { "uri", "samplerate", "channels", NULL };
71
72  if (!PyArg_ParseTupleAndKeywords (args, kwds, "|sII", kwlist,
73          &uri, &samplerate, &channels)) {
74    return NULL;
75  }
76
77  self = (Py_sink *) pytype->tp_alloc (pytype, 0);
78
79  if (self == NULL) {
80    return NULL;
81  }
82
83  self->uri = "none";
84  if (uri != NULL) {
85    self->uri = uri;
86  }
87
88  self->samplerate = Py_aubio_default_samplerate;
89  if (samplerate != 0) {
90    self->samplerate = samplerate;
91  }
92
93  self->channels = 1;
94  if (channels != 0) {
95    self->channels = channels;
96  }
97
98  return (PyObject *) self;
99}
100
101static int
102Py_sink_init (Py_sink * self, PyObject * args, PyObject * kwds)
103{
104  self->o = new_aubio_sink ( self->uri, 0 );
105  if (self->o == NULL) {
106    // error string was set in new_aubio_sink
107    return -1;
108  }
109  if (aubio_sink_preset_channels(self->o, self->channels) != 0) {
110    // error string was set in aubio_sink_preset_channels
111    return -1;
112  }
113  if (aubio_sink_preset_samplerate(self->o, self->samplerate) != 0) {
114    // error string was set in aubio_sink_preset_samplerate
115    return -1;
116  }
117
118  self->samplerate = aubio_sink_get_samplerate ( self->o );
119  self->channels = aubio_sink_get_channels ( self->o );
120
121  return 0;
122}
123
124static void
125Py_sink_del (Py_sink *self, PyObject *unused)
126{
127  del_aubio_sink(self->o);
128  free(self->mwrite_data.data);
129  Py_TYPE(self)->tp_free((PyObject *) self);
130}
131
132/* function Py_sink_do */
133static PyObject *
134Py_sink_do(Py_sink * self, PyObject * args)
135{
136  /* input vectors python prototypes */
137  PyObject * write_data_obj;
138
139  /* input vectors prototypes */
140  uint_t write;
141
142
143  if (!PyArg_ParseTuple (args, "OI", &write_data_obj, &write)) {
144    return NULL;
145  }
146
147  /* input vectors parsing */
148  if (!PyAubio_ArrayToCFvec(write_data_obj, &(self->write_data))) {
149    return NULL;
150  }
151
152
153  /* compute _do function */
154  aubio_sink_do (self->o, &(self->write_data), write);
155
156  Py_RETURN_NONE;
157}
158
159/* function Py_sink_do_multi */
160static PyObject *
161Py_sink_do_multi(Py_sink * self, PyObject * args)
162{
163  /* input vectors python prototypes */
164  PyObject * write_data_obj;
165
166  /* input vectors prototypes */
167  uint_t write;
168
169
170  if (!PyArg_ParseTuple (args, "OI", &write_data_obj, &write)) {
171    return NULL;
172  }
173
174
175  /* input vectors parsing */
176  if (!PyAubio_ArrayToCFmat(write_data_obj, &(self->mwrite_data))) {
177    return NULL;
178  }
179
180  /* compute _do function */
181  aubio_sink_do_multi (self->o, &(self->mwrite_data), write);
182  Py_RETURN_NONE;
183}
184
185static PyMemberDef Py_sink_members[] = {
186  {"uri", T_STRING, offsetof (Py_sink, uri), READONLY,
187    "path at which the sink was created"},
188  {"samplerate", T_INT, offsetof (Py_sink, samplerate), READONLY,
189    "samplerate at which the sink was created"},
190  {"channels", T_INT, offsetof (Py_sink, channels), READONLY,
191    "number of channels with which the sink was created"},
192  { NULL } // sentinel
193};
194
195static PyObject *
196Pyaubio_sink_close (Py_sink *self, PyObject *unused)
197{
198  aubio_sink_close (self->o);
199  Py_RETURN_NONE;
200}
201
202static PyMethodDef Py_sink_methods[] = {
203  {"do", (PyCFunction) Py_sink_do, METH_VARARGS, Py_sink_do_doc},
204  {"do_multi", (PyCFunction) Py_sink_do_multi, METH_VARARGS, Py_sink_do_multi_doc},
205  {"close", (PyCFunction) Pyaubio_sink_close, METH_NOARGS, Py_sink_close_doc},
206  {NULL} /* sentinel */
207};
208
209PyTypeObject Py_sinkType = {
210  PyVarObject_HEAD_INIT (NULL, 0)
211  "aubio.sink",
212  sizeof (Py_sink),
213  0,
214  (destructor) Py_sink_del,
215  0,
216  0,
217  0,
218  0,
219  0,
220  0,
221  0,
222  0,
223  0,
224  (ternaryfunc)Py_sink_do,
225  0,
226  0,
227  0,
228  0,
229  Py_TPFLAGS_DEFAULT,
230  Py_sink_doc,
231  0,
232  0,
233  0,
234  0,
235  0,
236  0,
237  Py_sink_methods,
238  Py_sink_members,
239  0,
240  0,
241  0,
242  0,
243  0,
244  0,
245  (initproc) Py_sink_init,
246  0,
247  Py_sink_new,
248  0,
249  0,
250  0,
251  0,
252  0,
253  0,
254  0,
255  0,
256  0,
257};
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