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QtSpeech_unx.cpp
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QtSpeech_unx.cpp
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/* QtSpeech -- a small cross-platform library to use TTS
Copyright (C) 2010-2011 LynxLine.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with this library; if not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301 USA */
#include <QtCore>
#include <QtSpeech>
#include <QtSpeech_unx.h>
#include <festival.h>
namespace QtSpeech_v1 { // API v1.0
// some defines for throwing exceptions
#define Where QString("%1:%2:").arg(__FILE__).arg(__LINE__)
#define SysCall(x,e) {\
int ok = x;\
if (!ok) {\
QString msg = #e;\
msg += ":"+QString(__FILE__);\
msg += ":"+QString::number(__LINE__)+":"+#x;\
throw e(msg);\
}\
}
WavePlayer::WavePlayer(QObject * p)
: QProcess(p), tmp("/tmp/qtspeechXXXXXX.wav")
{
tmp.open();
}
QString WavePlayer::filePath()
{
return tmp.fileName();
}
void WavePlayer::play()
{
const char * p = getenv("QTSPEECH_CMD");
if (!p)
p = "aplay %f";
start(QString(p).replace("%f", filePath()));
}
void WavePlayer::stop()
{
terminate();
if (!waitForFinished(3000))
{
kill();
waitForFinished(3000);
}
}
// qobject for speech process
bool QtSpeech_proc::init = false;
QPointer<WavePlayer> QtSpeech_proc::player = 0;
void QtSpeech_proc::say(QString text) {
try {
if (player)
{
player->stop();
delete player;
}
player = new WavePlayer;
if (!init) {
int heap_size = FESTIVAL_HEAP_SIZE;
festival_initialize(true,heap_size);
init = true;
}
has_error = false;
EST_String est_text(text.toUtf8());
EST_Wave est_wave;
SysCall(festival_text_to_wave(est_text, est_wave), QtSpeech::LogicError);
EST_String est_file(player->filePath().toUtf8());
est_wave.save(est_file);
connect(player, SIGNAL(finished(int)), this, SIGNAL(finished()));
connect(player, SIGNAL(finished(int)), player, SLOT(deleteLater()));
player->play();
}
catch(QtSpeech::LogicError e) {
has_error = true;
err = e;
}
}
// internal data
class QtSpeech::Private {
public:
Private() {}
VoiceName name;
static const QString VoiceId;
};
const QString QtSpeech::Private::VoiceId = QString("festival:%1");
// implementation
QtSpeech::QtSpeech(QObject * parent)
:QObject(parent), d(new Private)
{
VoiceName n = {Private::VoiceId.arg("english"), "English"};
if (n.id.isEmpty())
throw InitError(Where+"No default voice in system");
d->name = n;
}
QtSpeech::QtSpeech(VoiceName n, QObject * parent)
:QObject(parent), d(new Private)
{
if (n.id.isEmpty()) {
VoiceName def = {Private::VoiceId.arg("english"), "English"};
n = def;
}
if (n.id.isEmpty())
throw InitError(Where+"No default voice in system");
d->name = n;
}
QtSpeech::~QtSpeech()
{
//if ()
delete d;
}
const QtSpeech::VoiceName & QtSpeech::name() const {
return d->name;
}
QtSpeech::VoiceNames QtSpeech::voices()
{
VoiceNames vs;
VoiceName n = {Private::VoiceId.arg("english"), "English"};
vs << n;
return vs;
}
void QtSpeech::tell(QString text)
{
QtSpeech_proc * th = new QtSpeech_proc(this);
connect(th, SIGNAL(finished()), this, SIGNAL(finished()));
connect(th, SIGNAL(finished()), th, SLOT(deleteLater()));
th->say(text);
}
void QtSpeech::say(QString text)
{
QEventLoop el;
QtSpeech_proc th;
connect(&th, SIGNAL(finished()), &el, SLOT(quit()), Qt::QueuedConnection);
QMetaObject::invokeMethod(&th, "say", Qt::QueuedConnection, Q_ARG(QString,text));
el.exec();
if (th.has_error)
throw th.err;
}
void QtSpeech::timerEvent(QTimerEvent * te)
{
QObject::timerEvent(te);
}
} // namespace QtSpeech_v1