/*=====================================================================
QGroundControl Open Source Ground Control Station
(c) 2009, 2010 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
This file is part of the QGROUNDCONTROL project
QGROUNDCONTROL is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
QGROUNDCONTROL 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.
======================================================================*/
/**
* @file
* @brief Implementation of audio output
*
* @author Lorenz Meier <mavteam@student.ethz.ch>
*
*/
#include <QApplication>
#include <QTemporaryFile>
#include "GAudioOutput.h"
#include "MG.h"
#include <QDebug>
#ifdef Q_OS_MAC
#include <ApplicationServices/ApplicationServices.h>
#endif
// Speech synthesis is only supported with MSVC compiler
#if _MSC_VER2
// Documentation: http://msdn.microsoft.com/en-us/library/ee125082%28v=VS.85%29.aspx
#define _ATL_APARTMENT_THREADED
#include <atlbase.h>
//You may derive a class from CComModule and use it if you want to override something,
//but do not change the name of _Module
extern CComModule _Module;
#include <atlcom.h>
#include <sapi.h>
//using System;
//using System.Speech.Synthesis;
#endif
#ifdef Q_OS_LINUX
extern "C" {
#include <flite/flite.h>
cst_voice* register_cmu_us_kal(const char* voxdir);
};
#endif
/**
* This class follows the singleton design pattern
* @see http://en.wikipedia.org/wiki/Singleton_pattern
* A call to this function thus returns the only instance of this object
* the call can occur at any place in the code, no reference to the
* GAudioOutput object has to be passed.
*/
GAudioOutput* GAudioOutput::instance()
{
static GAudioOutput* _instance = 0;
if(_instance == 0) {
_instance = new GAudioOutput();
// Set the application as parent to ensure that this object
// will be destroyed when the main application exits
_instance->setParent(qApp);
}
return _instance;
}
GAudioOutput::GAudioOutput(QObject* parent) : QObject(parent),
voiceIndex(0),
emergency(false)
{
#ifdef Q_OS_LINUX
flite_init();
#endif
#if _MSC_VER2
ISpVoice * pVoice = NULL;
if (FAILED(::CoInitialize(NULL)))
{
qDebug("Creating COM object for audio output failed!");
}
else
{
HRESULT hr = CoCreateInstance(CLSID_SpVoice, NULL, CLSCTX_ALL, IID_ISpVoice, (void **)&pVoice;);
if( SUCCEEDED( hr ) )
{
hr = pVoice->Speak(L"Hello world", 0, NULL);
pVoice->Release();
pVoice = NULL;
}
}
#endif
// Initialize audio output
m_media = new Phonon::MediaObject(this);
Phonon::AudioOutput *audioOutput = new Phonon::AudioOutput(Phonon::MusicCategory, this);
createPath(m_media, audioOutput);
// Prepare regular emergency signal, will be fired off on calling startEmergency()
emergencyTimer = new QTimer();
connect(emergencyTimer, SIGNAL(timeout()), this, SLOT(beep()));
switch (voiceIndex)
{
case 0:
selectFemaleVoice();
break;
default:
selectMaleVoice();
break;
}
}
GAudioOutput::~GAudioOutput()
{
#ifdef _MSC_VER2
::CoUninitialize();
#endif
}
bool GAudioOutput::say(QString text, int severity)
{
// TODO Add severity filter
Q_UNUSED(severity);
bool res = false;
if (!emergency)
{
// Speech synthesis is only supported with MSVC compiler
#ifdef _MSC_VER2
SpeechSynthesizer synth = new SpeechSynthesizer();
synth.SelectVoice("Microsoft Anna");
synth.SpeakText(text.toStdString().c_str());
res = true;
#endif
#ifdef Q_OS_LINUX
QTemporaryFile file;
file.setFileTemplate("XXXXXX.wav");
if (file.open())
{
cst_voice* v = register_cmu_us_kal(NULL);
cst_wave* wav = flite_text_to_wave(text.toStdString().c_str(), v);
// file.fileName() returns the unique file name
cst_wave_save(wav, file.fileName().toStdString().c_str(), "riff");
m_media->setCurrentSource(Phonon::MediaSource(file.fileName().toStdString().c_str()));
m_media->play();
res = true;
}
#endif
#ifdef Q_OS_MAC
// Slashes necessary to have the right start to the sentence
// copying data prevents SpeakString from reading additional chars
text = "\\" + text;
QStdWString str = text.toStdWString();
unsigned char str2[1024] = {};
memcpy(str2, text.toAscii().data(), str.length());
SpeakString(str2);
res = true;
#endif
}
return res;
}
/**
* @param text This message will be played after the alert beep
*/
bool GAudioOutput::alert(QString text)
{
if (!emergency)
{
// Play alert sound
beep();
// Say alert message
say(text, 2);
return true;
}
else
{
return false;
}
}
void GAudioOutput::notifyPositive()
{
// Use QFile to transform path for all OS
QFile f(QCoreApplication::applicationDirPath()+QString("/audio/double_notify.wav"));
m_media->setCurrentSource(Phonon::MediaSource(f.fileName().toStdString().c_str()));
m_media->play();
}
void GAudioOutput::notifyNegative()
{
// Use QFile to transform path for all OS
QFile f(QCoreApplication::applicationDirPath()+QString("/audio/flat_notify.wav"));
m_media->setCurrentSource(Phonon::MediaSource(f.fileName().toStdString().c_str()));
m_media->play();
}
/**
* The emergency sound will be played continously during the emergency.
* call stopEmergency() to disable it again. No speech synthesis or other
* audio output is available during the emergency.
*
* @return true if the emergency could be started, false else
*/
bool GAudioOutput::startEmergency()
{
if (!emergency)
{
emergency = true;
// Beep immediately and then start timer
beep();
emergencyTimer->start(1500);
QTimer::singleShot(5000, this, SLOT(stopEmergency()));
}
return true;
}
/**
* Stops the continous emergency sound. Use startEmergency() to start
* the emergency sound.
*
* @return true if the emergency could be stopped, false else
*/
bool GAudioOutput::stopEmergency()
{
if (emergency)
{
emergency = false;
emergencyTimer->stop();
}
return true;
}
void GAudioOutput::beep()
{
// Use QFile to transform path for all OS
QFile f(QCoreApplication::applicationDirPath()+QString("/audio/alert.wav"));
m_media->setCurrentSource(Phonon::MediaSource(f.fileName().toStdString().c_str()));
m_media->play();
}
void GAudioOutput::selectFemaleVoice()
{
#ifdef Q_OS_LINUX
//this->voice = register_cmu_us_slt(NULL);
#endif
}
void GAudioOutput::selectMaleVoice()
{
#ifdef Q_OS_LINUX
//this->voice = register_cmu_us_rms(NULL);
#endif
}
/*
void GAudioOutput::selectNeutralVoice()
{
#ifdef Q_OS_LINUX
this->voice = register_cmu_us_awb(NULL);
#endif
}*/
QStringList GAudioOutput::listVoices(void)
{
QStringList l;
#ifdef Q_OS_LINUX2
cst_voice *voice;
const cst_val *v;
printf("Voices available: ");
for (v=flite_voice_list; v; v=val_cdr(v))
{
voice = val_voice(val_car(v));
QString s;
s.sprintf("%s",voice->name);
printf("%s",voice->name);
l.append(s);
}
printf("\n");
#endif
return l;
}