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Code to get and set rate and volume

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Kovid Goyal 2020-10-22 14:47:21 +05:30
parent 9c703b781d
commit ea0eeaf81e
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GPG Key ID: 06BC317B515ACE7C
2 changed files with 62 additions and 1 deletions
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47
src/calibre/utils/windows/winsapi.cpp
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@ -54,6 +54,8 @@ Voice_dealloc(Voice *self) {
CoUninitialize();
}
// Enumeration {{{
static PyObject*
Voice_get_all_sound_outputs(Voice *self, PyObject *args) {
HRESULT hr = S_OK;
@ -193,16 +195,59 @@ Voice_get_all_voices(Voice *self, PyObject *args) {
}
return PyList_AsTuple(ans.ptr());
}
// }}}
// Volume and rate {{{
static PyObject*
Voice_get_current_volume(Voice *self, PyObject *args) {
HRESULT hr = S_OK;
USHORT volume;
if (FAILED(hr = self->voice->GetVolume(&volume))) return error_from_hresult(hr);
return PyLong_FromUnsignedLong((unsigned long)volume);
}
static PyObject*
Voice_get_current_rate(Voice *self, PyObject *args) {
HRESULT hr = S_OK;
long rate;
if (FAILED(hr = self->voice->GetRate(&rate))) return error_from_hresult(hr);
return PyLong_FromLong(rate);
}
static PyObject*
Voice_set_current_rate(Voice *self, PyObject *args) {
HRESULT hr = S_OK;
long rate;
if (!PyArg_ParseTuple(args, "l", &rate)) return NULL;
if (rate < -10 || rate > 10) { PyErr_SetString(PyExc_ValueError, "rate must be between -10 and 10"); return NULL; }
if (FAILED(hr = self->voice->SetRate(rate))) return error_from_hresult(hr);
Py_RETURN_NONE;
}
static PyObject*
Voice_set_current_volume(Voice *self, PyObject *args) {
HRESULT hr = S_OK;
unsigned short volume;
if (!PyArg_ParseTuple(args, "H", &volume)) return NULL;
if (FAILED(hr = self->voice->SetVolume(volume))) return error_from_hresult(hr);
Py_RETURN_NONE;
}
// }}}
#define M(name, args) { #name, (PyCFunction)Voice_##name, args, ""}
static PyMethodDef Voice_methods[] = {
M(get_all_voices, METH_NOARGS),
M(get_all_sound_outputs, METH_NOARGS),
M(get_current_rate, METH_NOARGS),
M(get_current_volume, METH_NOARGS),
M(get_current_voice, METH_NOARGS),
M(get_current_sound_output, METH_NOARGS),
M(set_current_voice, METH_VARARGS),
M(set_current_rate, METH_VARARGS),
M(set_current_volume, METH_VARARGS),
M(set_current_sound_output, METH_VARARGS),
M(get_all_sound_outputs, METH_NOARGS),
{NULL, NULL, 0, NULL}
};
#undef M

16
src/calibre/utils/windows/winsapi.py
View File

@ -16,6 +16,8 @@ def develop():
def find_tests():
import unittest
import os
is_ci = os.environ.get('CI', '').lower() == 'true'
class TestSAPI(unittest.TestCase):
@ -39,6 +41,7 @@ def find_tests():
self.sapi.set_current_voice()
self.assertEqual(self.sapi.get_current_voice(), default_voice)
@unittest.skipIf(is_ci, 'No sound output on CI')
def test_enumeration_of_sound_outputs(self):
default_output = self.sapi.get_current_sound_output()
self.assertTrue(default_output)
@ -53,6 +56,19 @@ def find_tests():
self.sapi.set_current_sound_output()
self.assertEqual(self.sapi.get_current_sound_output(), default_output)
def test_volume_and_rate(self):
dr = self.sapi.get_current_rate()
new_rate = dr // 2 + 1
self.sapi.set_current_rate(new_rate)
self.assertEqual(self.sapi.get_current_rate(), new_rate)
self.sapi.set_current_rate(dr)
dv = self.sapi.get_current_volume()
new_vol = dv // 2 + 3
self.sapi.set_current_volume(new_vol)
self.assertEqual(self.sapi.get_current_volume(), new_vol)
self.sapi.set_current_volume(dv)
return unittest.defaultTestLoader.loadTestsFromTestCase(TestSAPI)