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Wrap more espeak APIs

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Kovid Goyal 2020-11-13 12:43:09 +05:30
parent 2d9dd81f46
commit e30843221c
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 54 additions and 1 deletions
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55
src/calibre/utils/tts/espeak.cpp
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@ -12,6 +12,8 @@
#include <Python.h>
#include <espeak-ng/speak_lib.h>
static PyObject *EspeakError = NULL;
class pyobject_raii {
private:
PyObject *handle;
@ -75,11 +77,58 @@ list_voices(PyObject *self, PyObject *args, PyObject *kw) {
return ans.detach();
}
static PyObject*
set_espeak_error(const char *prefix, espeak_ERROR err, const char *file, const int line) {
const char *m = "Unknown error";
switch(err) {
case EE_OK:
m = "No error"; break;
case EE_INTERNAL_ERROR:
m = "Internal error"; break;
case EE_BUFFER_FULL:
m = "Buffer full"; break;
case EE_NOT_FOUND:
m = "Not found"; break;
}
PyErr_Format(EspeakError, "[%s:%d] %s: %s", file, line, prefix, m);
return NULL;
}
#define espeak_error(prefix, err) set_espeak_error(prefix, err, __FILE__, __LINE__)
static PyObject*
set_voice_by_properties(PyObject *self, PyObject *args, PyObject *kw) {
espeak_VOICE q = {0};
static const char* kwds[] = {"name", "language", "gender", "age", "variant", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kw, "|$ssBBB", (char**)kwds, &q.name, &q.languages, &q.gender, &q.age, &q.variant)) return NULL;
espeak_ERROR err = espeak_SetVoiceByProperties(&q);
if (err != EE_OK) return espeak_error("Failed to set voice by properties", err);
Py_RETURN_NONE;
}
static PyObject*
cancel(PyObject *self, PyObject *args) {
espeak_ERROR err;
Py_BEGIN_ALLOW_THREADS;
err = espeak_Cancel();
Py_END_ALLOW_THREADS;
if (err != EE_OK) return espeak_error("Failed to cancel speech", err);
Py_RETURN_NONE;
}
static PyObject*
is_playing(PyObject *self, PyObject *args) {
return Py_BuildValue("O", espeak_IsPlaying() ? Py_True : Py_False);
}
// Boilerplate {{{
#define M(name, args, doc) { #name, (PyCFunction)name, args, ""}
static PyMethodDef methods[] = {
M(info, METH_VARARGS, "version and path"),
M(info, METH_NOARGS, "version and path"),
M(cancel, METH_NOARGS, "cancel all ongoing speech activity"),
M(is_playing, METH_NOARGS, "True iff speech is happening"),
M(list_voices, METH_VARARGS | METH_KEYWORDS, "list available voices"),
M(set_voice_by_properties, METH_VARARGS | METH_KEYWORDS, "set voice by properties"),
{NULL, NULL, 0, NULL}
};
#undef M
@ -88,6 +137,10 @@ static int
exec_module(PyObject *m) {
#define AI(name) if (PyModule_AddIntMacro(m, name) != 0) { return -1; }
#undef AI
EspeakError = PyErr_NewException("espeak.EspeakError", NULL, NULL);
if (EspeakError == NULL) return -1;
PyModule_AddObject(m, "EspeakError", EspeakError);
int sample_rate = espeak_Initialize(AUDIO_OUTPUT_SYNCH_PLAYBACK, 0, NULL, espeakINITIALIZE_DONT_EXIT);
if (sample_rate == -1) {
PyErr_SetString(PyExc_OSError, "Failed to initialize espeak library, are the data files missing?");