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 if (self->channel == NULL) {
215 PyErr_SetString(PyExc_RuntimeError, "unitialized channel");
218 channel_volume_write(self->channel, PyFloat_AsDouble(value));
223 Channel_get_balance(ChannelObject *self, void *closure)
225 return PyFloat_FromDouble(channel_balance_read(self->channel));
229 Channel_set_balance(ChannelObject *self, PyObject *value, void *closure)
231 channel_balance_write(self->channel, PyFloat_AsDouble(value));
236 Channel_get_mute(ChannelObject *self, void *closure)
240 if (channel_is_muted(self->channel)) {
250 Channel_set_mute(ChannelObject *self, PyObject *value, void *closure)
252 if (value == Py_True) {
253 channel_mute(self->channel);
255 channel_unmute(self->channel);
261 Channel_get_solo(ChannelObject *self, void *closure)
265 if (channel_is_soloed(self->channel)) {
275 Channel_set_solo(ChannelObject *self, PyObject *value, void *closure)
277 if (value == Py_True) {
278 channel_solo(self->channel);
280 channel_unsolo(self->channel);
286 Channel_get_meter(ChannelObject *self, void *closure)
291 if (channel_is_stereo(self->channel)) {
292 result = PyTuple_New(2);
293 channel_stereo_meter_read(self->channel, &left, &right);
294 PyTuple_SetItem(result, 0, PyFloat_FromDouble(left));
295 PyTuple_SetItem(result, 1, PyFloat_FromDouble(right));
297 result = PyTuple_New(1);
298 channel_mono_meter_read(self->channel, &left);
299 PyTuple_SetItem(result, 0, PyFloat_FromDouble(left));
305 Channel_get_abspeak(ChannelObject *self, void *closure)
307 return PyFloat_FromDouble(channel_abspeak_read(self->channel));
311 Channel_set_abspeak(ChannelObject *self, PyObject *value, void *closure)
313 if (value != Py_None) {
314 fprintf(stderr, "abspeak can only be reset (set to None)\n");
317 channel_abspeak_reset(self->channel);
322 Channel_set_midi_scale(ChannelObject *self, PyObject *value, void *closure)
324 ScaleObject *scale_object = (ScaleObject*)value; /* XXX: check */
326 channel_set_midi_scale(self->channel, scale_object->scale);
332 Channel_get_midi_change_callback(ChannelObject *self, void *closure)
334 if (self->midi_change_callback) {
335 Py_INCREF(self->midi_change_callback);
336 return self->midi_change_callback;
344 channel_midi_callback(void *userdata)
346 ChannelObject *self = (ChannelObject*)userdata;
347 PyGILState_STATE gstate;
349 gstate = PyGILState_Ensure();
350 PyObject_CallObject(self->midi_change_callback, NULL);
351 PyGILState_Release(gstate);
355 Channel_set_midi_change_callback(ChannelObject *self, PyObject *value, void *closure)
357 if (value == Py_None) {
358 self->midi_change_callback = NULL;
359 channel_set_midi_change_callback(self->channel, NULL, NULL);
361 if (!PyCallable_Check(value)) {
362 PyErr_SetString(PyExc_TypeError, "value must be callable");
365 if (self->midi_change_callback) {
366 Py_XDECREF(self->midi_change_callback);
369 self->midi_change_callback = value;
370 channel_set_midi_change_callback(self->channel,
371 channel_midi_callback, self);
378 Channel_get_name(ChannelObject *self, void *closure)
380 return PyString_FromString(channel_get_name(self->channel));
384 Channel_set_name(ChannelObject *self, PyObject *value, void *closure)
386 channel_rename(self->channel, PyString_AsString(value));
391 Channel_get_balance_midi_cc(ChannelObject *self, void *closure)
393 return PyInt_FromLong(channel_get_balance_midi_cc(self->channel));
397 Channel_set_balance_midi_cc(ChannelObject *self, PyObject *value, void *closure)
402 new_cc = PyInt_AsLong(value);
403 result = channel_set_balance_midi_cc(self->channel, new_cc);
408 PyErr_SetString(PyExc_RuntimeError, "value already in use");
409 } else if (result == 2) {
410 PyErr_SetString(PyExc_RuntimeError, "value out of range");
416 Channel_get_volume_midi_cc(ChannelObject *self, void *closure)
418 return PyInt_FromLong(channel_get_volume_midi_cc(self->channel));
422 Channel_set_volume_midi_cc(ChannelObject *self, PyObject *value, void *closure)
427 new_cc = PyInt_AsLong(value);
428 result = channel_set_volume_midi_cc(self->channel, new_cc);
433 PyErr_SetString(PyExc_RuntimeError, "value already in use");
434 } else if (result == 2) {
435 PyErr_SetString(PyExc_RuntimeError, "value out of range");
440 static PyGetSetDef Channel_getseters[] = {
442 (getter)Channel_get_is_stereo, NULL,
443 "mono/stereo", NULL},
445 (getter)Channel_get_volume, (setter)Channel_set_volume,
448 (getter)Channel_get_balance, (setter)Channel_set_balance,
451 (getter)Channel_get_mute, (setter)Channel_set_mute,
454 (getter)Channel_get_solo, (setter)Channel_set_solo,
457 (getter)Channel_get_meter, NULL,
460 (getter)Channel_get_abspeak, (setter)Channel_set_abspeak,
463 NULL, (setter)Channel_set_midi_scale,
465 {"midi_change_callback",
466 (getter)Channel_get_midi_change_callback,
467 (setter)Channel_set_midi_change_callback,
468 "midi change callback", NULL},
470 (getter)Channel_get_name,
471 (setter)Channel_set_name,
474 (getter)Channel_get_balance_midi_cc,
475 (setter)Channel_set_balance_midi_cc,
476 "Balance MIDI CC", NULL},
478 (getter)Channel_get_volume_midi_cc,
479 (setter)Channel_set_volume_midi_cc,
480 "Volume MIDI CC", NULL},
485 Channel_remove(ChannelObject *self, PyObject *args)
487 if (! PyArg_ParseTuple(args, "")) return NULL;
488 remove_channel(self->channel);
494 Channel_autoset_midi_cc(ChannelObject *self, PyObject *args)
496 if (! PyArg_ParseTuple(args, "")) return NULL;
497 channel_autoset_midi_cc(self->channel);
502 static PyMethodDef channel_methods[] = {
503 {"remove", (PyCFunction)Channel_remove, METH_VARARGS, "Remove"},
504 {"autoset_midi_cc", (PyCFunction)Channel_autoset_midi_cc, METH_VARARGS, "Autoset MIDI CC"},
508 static PyTypeObject ChannelType = {
509 PyObject_HEAD_INIT(NULL)
511 "jack_mixer_c.Channel", /*tp_name*/
512 sizeof(ChannelObject), /*tp_basicsize*/
514 (destructor)Channel_dealloc, /*tp_dealloc*/
521 0, /*tp_as_sequence*/
529 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
530 "Channel objects", /* tp_doc */
533 0, /* tp_richcompare */
534 0, /* tp_weaklistoffset */
537 channel_methods, /* tp_methods */
539 Channel_getseters, /* tp_getset */
542 0, /* tp_descr_get */
543 0, /* tp_descr_set */
544 0, /* tp_dictoffset */
545 (initproc)Channel_init, /* tp_init */
547 Channel_new, /* tp_new */
551 Channel_New(jack_mixer_channel_t channel)
554 self = (ChannelObject*)PyObject_NEW(ChannelObject, &ChannelType);
556 self->channel = channel;
557 self->midi_change_callback = NULL;
559 return (PyObject*)self;
562 /** Output Channel Type **/
566 PyObject *midi_change_callback;
567 jack_mixer_output_channel_t *output_channel;
568 } OutputChannelObject;
571 OutputChannel_set_prefader(OutputChannelObject *self, PyObject *value, void *closure)
573 if (value == Py_True) {
574 output_channel_set_prefader(self->output_channel, true);
576 output_channel_set_prefader(self->output_channel, false);
582 OutputChannel_get_prefader(OutputChannelObject *self, void *closure)
586 if (output_channel_is_prefader(self->output_channel)) {
595 static PyGetSetDef OutputChannel_getseters[] = {
597 (getter)OutputChannel_get_prefader, (setter)OutputChannel_set_prefader,
603 OutputChannel_remove(OutputChannelObject *self, PyObject *args)
605 if (! PyArg_ParseTuple(args, "")) return NULL;
606 remove_output_channel(self->output_channel);
612 OutputChannel_set_solo(OutputChannelObject *self, PyObject *args)
617 if (! PyArg_ParseTuple(args, "Ob", &channel, &solo)) return NULL;
619 output_channel_set_solo(self->output_channel,
620 ((ChannelObject*)channel)->channel,
628 OutputChannel_set_muted(OutputChannelObject *self, PyObject *args)
633 if (! PyArg_ParseTuple(args, "Ob", &channel, &muted)) return NULL;
635 output_channel_set_muted(self->output_channel,
636 ((ChannelObject*)channel)->channel,
644 OutputChannel_is_solo(OutputChannelObject *self, PyObject *args)
649 if (! PyArg_ParseTuple(args, "O", &channel)) return NULL;
651 if (output_channel_is_solo(self->output_channel,
652 ((ChannelObject*)channel)->channel)) {
663 OutputChannel_is_muted(OutputChannelObject *self, PyObject *args)
668 if (! PyArg_ParseTuple(args, "O", &channel)) return NULL;
670 if (output_channel_is_muted(self->output_channel,
671 ((ChannelObject*)channel)->channel)) {
681 static PyMethodDef output_channel_methods[] = {
682 {"remove", (PyCFunction)OutputChannel_remove, METH_VARARGS, "Remove"},
683 {"set_solo", (PyCFunction)OutputChannel_set_solo, METH_VARARGS, "Set a channel as solo"},
684 {"set_muted", (PyCFunction)OutputChannel_set_muted, METH_VARARGS, "Set a channel as muted"},
685 {"is_solo", (PyCFunction)OutputChannel_is_solo, METH_VARARGS, "Is a channel set as solo"},
686 {"is_muted", (PyCFunction)OutputChannel_is_muted, METH_VARARGS, "Is a channel set as muted"},
690 static PyTypeObject OutputChannelType = {
691 PyObject_HEAD_INIT(NULL)
693 "jack_mixer_c.OutputChannel", /*tp_name*/
694 sizeof(OutputChannelObject), /*tp_basicsize*/
703 0, /*tp_as_sequence*/
711 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
712 "Output Channel objects", /* tp_doc */
715 0, /* tp_richcompare */
716 0, /* tp_weaklistoffset */
719 output_channel_methods, /* tp_methods */
721 OutputChannel_getseters, /* tp_getset */
722 &ChannelType, /* tp_base */
724 0, /* tp_descr_get */
725 0, /* tp_descr_set */
726 0, /* tp_dictoffset */
733 OutputChannel_New(jack_mixer_output_channel_t output_channel)
735 OutputChannelObject *self;
736 self = (OutputChannelObject*)PyObject_NEW(OutputChannelObject, &OutputChannelType);
738 self->midi_change_callback = NULL;
739 self->output_channel = output_channel;
741 return (PyObject*)self;
749 PyObject *main_mix_channel;
754 Mixer_dealloc(MixerObject *self)
756 Py_XDECREF(self->main_mix_channel);
758 destroy(self->mixer);
759 self->ob_type->tp_free((PyObject*)self);
763 Mixer_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
767 self = (MixerObject*)type->tp_alloc(type, 0);
770 self->main_mix_channel = NULL;
774 return (PyObject*)self;
778 Mixer_init(MixerObject *self, PyObject *args, PyObject *kwds)
780 static char *kwlist[] = {"name", NULL};
783 if (!PyArg_ParseTupleAndKeywords(args, kwds, "s", kwlist, &name))
786 self->mixer = create(name);
787 if (self->mixer == NULL) {
788 PyErr_SetString(PyExc_RuntimeError,
789 "error creating mixer, probably jack is not running");
793 self->main_mix_channel = Channel_New(get_main_mix_channel(self->mixer));
798 static PyMemberDef Mixer_members[] = {
799 {"main_mix_channel", T_OBJECT, offsetof(MixerObject, main_mix_channel), 0, "main_mix_channel"},
804 Mixer_get_channels_count(MixerObject *self, void *closure)
806 return PyInt_FromLong(get_channels_count(self->mixer));
810 Mixer_get_last_midi_channel(MixerObject *self, void *closure)
812 return PyInt_FromLong(get_last_midi_channel(self->mixer));
816 static PyGetSetDef Mixer_getseters[] = {
817 {"channels_count", (getter)Mixer_get_channels_count, NULL,
818 "channels count", NULL},
819 {"last_midi_channel", (getter)Mixer_get_last_midi_channel, NULL,
820 "last midi channel", NULL},
825 Mixer_add_channel(MixerObject *self, PyObject *args)
829 jack_mixer_channel_t channel;
831 if (! PyArg_ParseTuple(args, "sb", &name, &stereo)) return NULL;
833 channel = add_channel(self->mixer, name, (bool)stereo);
835 if (channel == NULL) {
836 PyErr_SetString(PyExc_RuntimeError, "error adding channel");
840 return Channel_New(channel);
844 Mixer_add_output_channel(MixerObject *self, PyObject *args)
849 jack_mixer_output_channel_t channel;
851 if (! PyArg_ParseTuple(args, "s|bb", &name, &stereo, &system)) return NULL;
853 channel = add_output_channel(self->mixer, name, (bool)stereo, (bool)system);
855 return OutputChannel_New(channel);
859 static PyMethodDef Mixer_methods[] = {
860 {"add_channel", (PyCFunction)Mixer_add_channel, METH_VARARGS, "Add a new channel"},
861 {"add_output_channel", (PyCFunction)Mixer_add_output_channel, METH_VARARGS, "Add a new output channel"},
862 // {"remove_channel", (PyCFunction)Mixer_remove_channel, METH_VARARGS, "Remove a channel"},
866 static PyTypeObject MixerType = {
867 PyObject_HEAD_INIT(NULL)
869 "jack_mixer_c.Mixer", /*tp_name*/
870 sizeof(MixerObject), /*tp_basicsize*/
872 (destructor)Mixer_dealloc, /*tp_dealloc*/
879 0, /*tp_as_sequence*/
887 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
888 "Mixer objects", /* tp_doc */
891 0, /* tp_richcompare */
892 0, /* tp_weaklistoffset */
895 Mixer_methods, /* tp_methods */
896 Mixer_members, /* tp_members */
897 Mixer_getseters, /* tp_getset */
900 0, /* tp_descr_get */
901 0, /* tp_descr_set */
902 0, /* tp_dictoffset */
903 (initproc)Mixer_init, /* tp_init */
905 Mixer_new, /* tp_new */
909 static PyMethodDef jack_mixer_methods[] = {
910 {NULL} /* Sentinel */
915 PyMODINIT_FUNC initjack_mixer_c(void)
919 if (PyType_Ready(&MixerType) < 0)
921 if (PyType_Ready(&ChannelType) < 0)
923 if (PyType_Ready(&OutputChannelType) < 0)
925 if (PyType_Ready(&ScaleType) < 0)
928 m = Py_InitModule3("jack_mixer_c", jack_mixer_methods, "Jack Mixer C Helper Module");
930 Py_INCREF(&MixerType);
931 PyModule_AddObject(m, "Mixer", (PyObject*)&MixerType);
932 Py_INCREF(&ChannelType);
933 PyModule_AddObject(m, "Channel", (PyObject*)&ChannelType);
934 Py_INCREF(&OutputChannelType);
935 PyModule_AddObject(m, "OutputChannel", (PyObject*)&OutputChannelType);
936 Py_INCREF(&ScaleType);
937 PyModule_AddObject(m, "Scale", (PyObject*)&ScaleType);