2 * This file is part of jack_mixer
4 * Copyright (C) 2009 Frederic Peters <fpeters@0d.be>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
26 #include <structmember.h>
28 #include "jack_mixer.h"
35 jack_mixer_scale_t scale;
39 Scale_dealloc(ScaleObject *self)
42 scale_destroy(self->scale);
43 self->ob_type->tp_free((PyObject*)self);
47 Scale_init(ScaleObject *self, PyObject *args, PyObject *kwds)
49 self->scale = scale_create();
54 Scale_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
58 self = (ScaleObject*)type->tp_alloc(type, 0);
60 return (PyObject*)self;
64 Scale_add_threshold(ScaleObject *self, PyObject *args)
66 float db, scale_value;
68 if (! PyArg_ParseTuple(args, "ff", &db, &scale_value)) return NULL;
70 scale_add_threshold(self->scale, db, scale_value);
77 Scale_calculate_coefficients(ScaleObject *self, PyObject *args)
79 if (! PyArg_ParseTuple(args, "")) return NULL;
80 scale_calculate_coefficients(self->scale);
86 Scale_db_to_scale(ScaleObject *self, PyObject *args)
89 if (! PyArg_ParseTuple(args, "d", &db)) return NULL;
90 return PyFloat_FromDouble(scale_db_to_scale(self->scale, db));
94 Scale_scale_to_db(ScaleObject *self, PyObject *args)
97 if (! PyArg_ParseTuple(args, "d", &scale_value)) return NULL;
98 return PyFloat_FromDouble(scale_scale_to_db(self->scale, scale_value));
101 static PyMethodDef Scale_methods[] = {
102 {"add_threshold", (PyCFunction)Scale_add_threshold, METH_VARARGS, "Add threshold"},
103 {"calculate_coefficients", (PyCFunction)Scale_calculate_coefficients,
104 METH_VARARGS, "Calculate coefficients"},
105 {"db_to_scale", (PyCFunction)Scale_db_to_scale, METH_VARARGS, "dB to scale"},
106 {"scale_to_db", (PyCFunction)Scale_scale_to_db, METH_VARARGS, "scale to dB"},
110 static PyTypeObject ScaleType = {
111 PyObject_HEAD_INIT(NULL)
113 "jack_mixer_c.Scale", /*tp_name*/
114 sizeof(ScaleObject), /*tp_basicsize*/
116 (destructor)Scale_dealloc, /*tp_dealloc*/
123 0, /*tp_as_sequence*/
131 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
132 "Scale objects", /* tp_doc */
135 0, /* tp_richcompare */
136 0, /* tp_weaklistoffset */
139 Scale_methods, /* tp_methods */
144 0, /* tp_descr_get */
145 0, /* tp_descr_set */
146 0, /* tp_dictoffset */
147 (initproc)Scale_init, /* tp_init */
149 Scale_new, /* tp_new */
157 PyObject *midi_change_callback;
158 jack_mixer_channel_t channel;
162 Channel_dealloc(ChannelObject *self)
164 Py_XDECREF(self->midi_change_callback);
165 self->ob_type->tp_free((PyObject*)self);
169 Channel_init(ChannelObject *self, PyObject *args, PyObject *kwds)
171 self->midi_change_callback = NULL;
176 Channel_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
180 self = (ChannelObject*)type->tp_alloc(type, 0);
183 self->channel = NULL;
184 self->midi_change_callback = NULL;
187 return (PyObject*)self;
191 Channel_get_is_stereo(ChannelObject *self, void *closure)
195 bool is_stereo = channel_is_stereo(self->channel);
206 Channel_get_volume(ChannelObject *self, void *closure)
208 return PyFloat_FromDouble(channel_volume_read(self->channel));
212 Channel_set_volume(ChannelObject *self, PyObject *value, void *closure)
214 channel_volume_write(self->channel, PyFloat_AsDouble(value));
219 Channel_get_balance(ChannelObject *self, void *closure)
221 return PyFloat_FromDouble(channel_balance_read(self->channel));
225 Channel_set_balance(ChannelObject *self, PyObject *value, void *closure)
227 channel_balance_write(self->channel, PyFloat_AsDouble(value));
232 Channel_get_mute(ChannelObject *self, void *closure)
236 if (channel_is_muted(self->channel)) {
246 Channel_set_mute(ChannelObject *self, PyObject *value, void *closure)
248 if (value == Py_True) {
249 channel_mute(self->channel);
251 channel_unmute(self->channel);
257 Channel_get_solo(ChannelObject *self, void *closure)
261 if (channel_is_soloed(self->channel)) {
271 Channel_set_solo(ChannelObject *self, PyObject *value, void *closure)
273 if (value == Py_True) {
274 channel_solo(self->channel);
276 channel_unsolo(self->channel);
282 Channel_get_meter(ChannelObject *self, void *closure)
287 if (channel_is_stereo(self->channel)) {
288 result = PyTuple_New(2);
289 channel_stereo_meter_read(self->channel, &left, &right);
290 PyTuple_SetItem(result, 0, PyFloat_FromDouble(left));
291 PyTuple_SetItem(result, 1, PyFloat_FromDouble(right));
293 result = PyTuple_New(1);
294 channel_mono_meter_read(self->channel, &left);
295 PyTuple_SetItem(result, 0, PyFloat_FromDouble(left));
301 Channel_get_abspeak(ChannelObject *self, void *closure)
303 return PyFloat_FromDouble(channel_abspeak_read(self->channel));
307 Channel_set_abspeak(ChannelObject *self, PyObject *value, void *closure)
309 if (value != Py_None) {
310 fprintf(stderr, "abspeak can only be reset (set to None)\n");
313 channel_abspeak_reset(self->channel);
318 Channel_set_midi_scale(ChannelObject *self, PyObject *value, void *closure)
320 ScaleObject *scale_object = (ScaleObject*)value; /* XXX: check */
322 channel_set_midi_scale(self->channel, scale_object->scale);
328 Channel_get_midi_change_callback(ChannelObject *self, void *closure)
330 if (self->midi_change_callback) {
331 Py_INCREF(self->midi_change_callback);
332 return self->midi_change_callback;
340 channel_midi_callback(void *userdata)
342 ChannelObject *self = (ChannelObject*)userdata;
343 PyGILState_STATE gstate;
345 gstate = PyGILState_Ensure();
346 PyObject_CallObject(self->midi_change_callback, NULL);
347 PyGILState_Release(gstate);
351 Channel_set_midi_change_callback(ChannelObject *self, PyObject *value, void *closure)
353 if (value == Py_None) {
354 self->midi_change_callback = NULL;
355 channel_set_midi_change_callback(self->channel, NULL, NULL);
357 if (!PyCallable_Check(value)) {
358 PyErr_SetString(PyExc_TypeError, "value must be callable");
361 if (self->midi_change_callback) {
362 Py_XDECREF(self->midi_change_callback);
365 self->midi_change_callback = value;
366 channel_set_midi_change_callback(self->channel,
367 channel_midi_callback, self);
374 Channel_get_name(ChannelObject *self, void *closure)
376 return PyString_FromString(channel_get_name(self->channel));
380 Channel_set_name(ChannelObject *self, PyObject *value, void *closure)
382 channel_rename(self->channel, PyString_AsString(value));
387 Channel_get_balance_midi_cc(ChannelObject *self, void *closure)
389 return PyInt_FromLong(channel_get_balance_midi_cc(self->channel));
393 Channel_set_balance_midi_cc(ChannelObject *self, PyObject *value, void *closure)
398 new_cc = PyInt_AsLong(value);
399 result = channel_set_balance_midi_cc(self->channel, new_cc);
404 PyErr_SetString(PyExc_RuntimeError, "value already in use");
405 } else if (result == 2) {
406 PyErr_SetString(PyExc_RuntimeError, "value out of range");
412 Channel_get_volume_midi_cc(ChannelObject *self, void *closure)
414 return PyInt_FromLong(channel_get_volume_midi_cc(self->channel));
418 Channel_set_volume_midi_cc(ChannelObject *self, PyObject *value, void *closure)
423 new_cc = PyInt_AsLong(value);
424 result = channel_set_volume_midi_cc(self->channel, new_cc);
429 PyErr_SetString(PyExc_RuntimeError, "value already in use");
430 } else if (result == 2) {
431 PyErr_SetString(PyExc_RuntimeError, "value out of range");
436 static PyGetSetDef Channel_getseters[] = {
438 (getter)Channel_get_is_stereo, NULL,
439 "mono/stereo", NULL},
441 (getter)Channel_get_volume, (setter)Channel_set_volume,
444 (getter)Channel_get_balance, (setter)Channel_set_balance,
447 (getter)Channel_get_mute, (setter)Channel_set_mute,
450 (getter)Channel_get_solo, (setter)Channel_set_solo,
453 (getter)Channel_get_meter, NULL,
456 (getter)Channel_get_abspeak, (setter)Channel_set_abspeak,
459 NULL, (setter)Channel_set_midi_scale,
461 {"midi_change_callback",
462 (getter)Channel_get_midi_change_callback,
463 (setter)Channel_set_midi_change_callback,
464 "midi change callback", NULL},
466 (getter)Channel_get_name,
467 (setter)Channel_set_name,
470 (getter)Channel_get_balance_midi_cc,
471 (setter)Channel_set_balance_midi_cc,
472 "Balance MIDI CC", NULL},
474 (getter)Channel_get_volume_midi_cc,
475 (setter)Channel_set_volume_midi_cc,
476 "Volume MIDI CC", NULL},
481 Channel_remove(ChannelObject *self, PyObject *args)
483 if (! PyArg_ParseTuple(args, "")) return NULL;
484 remove_channel(self->channel);
490 Channel_autoset_midi_cc(ChannelObject *self, PyObject *args)
492 if (! PyArg_ParseTuple(args, "")) return NULL;
493 channel_autoset_midi_cc(self->channel);
498 static PyMethodDef channel_methods[] = {
499 {"remove", (PyCFunction)Channel_remove, METH_VARARGS, "Remove"},
500 {"autoset_midi_cc", (PyCFunction)Channel_autoset_midi_cc, METH_VARARGS, "Autoset MIDI CC"},
504 static PyTypeObject ChannelType = {
505 PyObject_HEAD_INIT(NULL)
507 "jack_mixer_c.Channel", /*tp_name*/
508 sizeof(ChannelObject), /*tp_basicsize*/
510 (destructor)Channel_dealloc, /*tp_dealloc*/
517 0, /*tp_as_sequence*/
525 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
526 "Channel objects", /* tp_doc */
529 0, /* tp_richcompare */
530 0, /* tp_weaklistoffset */
533 channel_methods, /* tp_methods */
535 Channel_getseters, /* tp_getset */
538 0, /* tp_descr_get */
539 0, /* tp_descr_set */
540 0, /* tp_dictoffset */
541 (initproc)Channel_init, /* tp_init */
543 Channel_new, /* tp_new */
547 Channel_New(jack_mixer_channel_t channel)
550 self = (ChannelObject*)PyObject_NEW(ChannelObject, &ChannelType);
552 self->channel = channel;
553 self->midi_change_callback = NULL;
555 return (PyObject*)self;
558 /** Output Channel Type **/
562 PyObject *midi_change_callback;
563 jack_mixer_output_channel_t *output_channel;
564 } OutputChannelObject;
567 OutputChannel_set_prefader(OutputChannelObject *self, PyObject *value, void *closure)
569 if (value == Py_True) {
570 output_channel_set_prefader(self->output_channel, true);
572 output_channel_set_prefader(self->output_channel, false);
578 OutputChannel_get_prefader(OutputChannelObject *self, void *closure)
582 if (output_channel_is_prefader(self->output_channel)) {
591 static PyGetSetDef OutputChannel_getseters[] = {
593 (getter)OutputChannel_get_prefader, (setter)OutputChannel_set_prefader,
599 OutputChannel_remove(OutputChannelObject *self, PyObject *args)
601 if (! PyArg_ParseTuple(args, "")) return NULL;
602 remove_output_channel(self->output_channel);
608 OutputChannel_set_solo(OutputChannelObject *self, PyObject *args)
613 if (! PyArg_ParseTuple(args, "Ob", &channel, &solo)) return NULL;
615 output_channel_set_solo(self->output_channel,
616 ((ChannelObject*)channel)->channel,
624 OutputChannel_set_muted(OutputChannelObject *self, PyObject *args)
629 if (! PyArg_ParseTuple(args, "Ob", &channel, &muted)) return NULL;
631 output_channel_set_muted(self->output_channel,
632 ((ChannelObject*)channel)->channel,
640 OutputChannel_is_solo(OutputChannelObject *self, PyObject *args)
645 if (! PyArg_ParseTuple(args, "O", &channel)) return NULL;
647 if (output_channel_is_solo(self->output_channel,
648 ((ChannelObject*)channel)->channel)) {
659 OutputChannel_is_muted(OutputChannelObject *self, PyObject *args)
664 if (! PyArg_ParseTuple(args, "O", &channel)) return NULL;
666 if (output_channel_is_muted(self->output_channel,
667 ((ChannelObject*)channel)->channel)) {
677 static PyMethodDef output_channel_methods[] = {
678 {"remove", (PyCFunction)OutputChannel_remove, METH_VARARGS, "Remove"},
679 {"set_solo", (PyCFunction)OutputChannel_set_solo, METH_VARARGS, "Set a channel as solo"},
680 {"set_muted", (PyCFunction)OutputChannel_set_muted, METH_VARARGS, "Set a channel as muted"},
681 {"is_solo", (PyCFunction)OutputChannel_is_solo, METH_VARARGS, "Is a channel set as solo"},
682 {"is_muted", (PyCFunction)OutputChannel_is_muted, METH_VARARGS, "Is a channel set as muted"},
686 static PyTypeObject OutputChannelType = {
687 PyObject_HEAD_INIT(NULL)
689 "jack_mixer_c.OutputChannel", /*tp_name*/
690 sizeof(OutputChannelObject), /*tp_basicsize*/
699 0, /*tp_as_sequence*/
707 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
708 "Output Channel objects", /* tp_doc */
711 0, /* tp_richcompare */
712 0, /* tp_weaklistoffset */
715 output_channel_methods, /* tp_methods */
717 OutputChannel_getseters, /* tp_getset */
718 &ChannelType, /* tp_base */
720 0, /* tp_descr_get */
721 0, /* tp_descr_set */
722 0, /* tp_dictoffset */
729 OutputChannel_New(jack_mixer_output_channel_t output_channel)
731 OutputChannelObject *self;
732 self = (OutputChannelObject*)PyObject_NEW(OutputChannelObject, &OutputChannelType);
734 self->midi_change_callback = NULL;
735 self->output_channel = output_channel;
737 return (PyObject*)self;
745 PyObject *main_mix_channel;
750 Mixer_dealloc(MixerObject *self)
752 Py_XDECREF(self->main_mix_channel);
754 destroy(self->mixer);
755 self->ob_type->tp_free((PyObject*)self);
759 Mixer_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
763 self = (MixerObject*)type->tp_alloc(type, 0);
766 self->main_mix_channel = NULL;
770 return (PyObject*)self;
774 Mixer_init(MixerObject *self, PyObject *args, PyObject *kwds)
776 static char *kwlist[] = {"name", NULL};
779 if (!PyArg_ParseTupleAndKeywords(args, kwds, "s", kwlist, &name))
782 self->mixer = create(name);
783 if (self->mixer == NULL) {
784 PyErr_SetString(PyExc_RuntimeError,
785 "error creating mixer, probably jack is not running");
789 self->main_mix_channel = Channel_New(get_main_mix_channel(self->mixer));
794 static PyMemberDef Mixer_members[] = {
795 {"main_mix_channel", T_OBJECT, offsetof(MixerObject, main_mix_channel), 0, "main_mix_channel"},
800 Mixer_get_channels_count(MixerObject *self, void *closure)
802 return PyInt_FromLong(get_channels_count(self->mixer));
806 Mixer_get_last_midi_channel(MixerObject *self, void *closure)
808 return PyInt_FromLong(get_last_midi_channel(self->mixer));
812 static PyGetSetDef Mixer_getseters[] = {
813 {"channels_count", (getter)Mixer_get_channels_count, NULL,
814 "channels count", NULL},
815 {"last_midi_channel", (getter)Mixer_get_last_midi_channel, NULL,
816 "last midi channel", NULL},
821 Mixer_add_channel(MixerObject *self, PyObject *args)
825 jack_mixer_channel_t channel;
827 if (! PyArg_ParseTuple(args, "sb", &name, &stereo)) return NULL;
829 channel = add_channel(self->mixer, name, (bool)stereo);
831 if (channel == NULL) {
832 PyErr_SetString(PyExc_RuntimeError, "error adding channel");
836 return Channel_New(channel);
840 Mixer_add_output_channel(MixerObject *self, PyObject *args)
845 jack_mixer_output_channel_t channel;
847 if (! PyArg_ParseTuple(args, "s|bb", &name, &stereo, &system)) return NULL;
849 channel = add_output_channel(self->mixer, name, (bool)stereo, (bool)system);
851 return OutputChannel_New(channel);
855 static PyMethodDef Mixer_methods[] = {
856 {"add_channel", (PyCFunction)Mixer_add_channel, METH_VARARGS, "Add a new channel"},
857 {"add_output_channel", (PyCFunction)Mixer_add_output_channel, METH_VARARGS, "Add a new output channel"},
858 // {"remove_channel", (PyCFunction)Mixer_remove_channel, METH_VARARGS, "Remove a channel"},
862 static PyTypeObject MixerType = {
863 PyObject_HEAD_INIT(NULL)
865 "jack_mixer_c.Mixer", /*tp_name*/
866 sizeof(MixerObject), /*tp_basicsize*/
868 (destructor)Mixer_dealloc, /*tp_dealloc*/
875 0, /*tp_as_sequence*/
883 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
884 "Mixer objects", /* tp_doc */
887 0, /* tp_richcompare */
888 0, /* tp_weaklistoffset */
891 Mixer_methods, /* tp_methods */
892 Mixer_members, /* tp_members */
893 Mixer_getseters, /* tp_getset */
896 0, /* tp_descr_get */
897 0, /* tp_descr_set */
898 0, /* tp_dictoffset */
899 (initproc)Mixer_init, /* tp_init */
901 Mixer_new, /* tp_new */
905 static PyMethodDef jack_mixer_methods[] = {
906 {NULL} /* Sentinel */
911 PyMODINIT_FUNC initjack_mixer_c(void)
915 if (PyType_Ready(&MixerType) < 0)
917 if (PyType_Ready(&ChannelType) < 0)
919 if (PyType_Ready(&OutputChannelType) < 0)
921 if (PyType_Ready(&ScaleType) < 0)
924 m = Py_InitModule3("jack_mixer_c", jack_mixer_methods, "Jack Mixer C Helper Module");
926 Py_INCREF(&MixerType);
927 PyModule_AddObject(m, "Mixer", (PyObject*)&MixerType);
928 Py_INCREF(&ChannelType);
929 PyModule_AddObject(m, "Channel", (PyObject*)&ChannelType);
930 Py_INCREF(&OutputChannelType);
931 PyModule_AddObject(m, "OutputChannel", (PyObject*)&OutputChannelType);
932 Py_INCREF(&ScaleType);
933 PyModule_AddObject(m, "Scale", (PyObject*)&ScaleType);