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#include <QSettings>
#include <QDebug>
#include "QGC.h"
#include "QGCAudioWorker.h"
#if defined Q_OS_MAC && defined QGC_SPEECH_ENABLED
#include <ApplicationServices/ApplicationServices.h>
#endif
// Speech synthesis is only supported with MSVC compiler
#if defined _MSC_VER && defined QGC_SPEECH_ENABLED
// Documentation: http://msdn.microsoft.com/en-us/library/ee125082%28v=VS.85%29.aspx
#include <sapi.h>
#endif
#if defined Q_OS_LINUX && defined QGC_SPEECH_ENABLED
// Using eSpeak for speech synthesis: following https://github.com/mondhs/espeak-sample/blob/master/sampleSpeak.cpp
#include <espeak/speak_lib.h>
#endif
#if defined _MSC_VER && defined QGC_SPEECH_ENABLED
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#endif
#define QGC_GAUDIOOUTPUT_KEY QString("QGC_AUDIOOUTPUT_")
QGCAudioWorker::QGCAudioWorker(QObject *parent) :
QObject(parent),
voiceIndex(0),
emergency(false),
muted(false)
{
// Load settings
QSettings settings;
muted = settings.value(QGC_GAUDIOOUTPUT_KEY + "muted", muted).toBool();
#if defined Q_OS_LINUX && defined QGC_SPEECH_ENABLED
espeak_Initialize(AUDIO_OUTPUT_PLAYBACK, 500, NULL, 0); // initialize for playback with 500ms buffer and no options (see speak_lib.h)
espeak_VOICE *espeak_voice = espeak_GetCurrentVoice();
espeak_voice->languages = "en-uk"; // Default to British English
espeak_voice->identifier = NULL; // no specific voice file specified
espeak_voice->name = "klatt"; // espeak voice name
espeak_voice->gender = 2; // Female
espeak_voice->age = 0; // age not specified
espeak_SetVoiceByProperties(espeak_voice);
#endif
#if defined _MSC_VER && defined QGC_SPEECH_ENABLED
pVoice = NULL;
if (FAILED(::CoInitialize(NULL)))
{
qDebug() << "ERROR: Creating COM object for audio output failed!";
}
else
{
HRESULT hr = CoCreateInstance(CLSID_SpVoice, NULL, CLSCTX_ALL, IID_ISpVoice, (void **)&pVoice);
if (FAILED(hr))
{
qDebug() << "ERROR: Initializing voice for audio output failed!";
}
}
#endif
// Prepare regular emergency signal, will be fired off on calling startEmergency()
emergencyTimer = new QTimer();
connect(emergencyTimer, SIGNAL(timeout()), this, SLOT(beep()));
}
QGCAudioWorker::~QGCAudioWorker()
{
#if defined _MSC_VER && defined QGC_SPEECH_ENABLED
pVoice->Release();
pVoice = NULL;
::CoUninitialize();
#endif
}
void QGCAudioWorker::say(QString text, int severity)
{
qDebug() << "TEXT" << text;
if (!muted)
{
// TODO Add severity filter
Q_UNUSED(severity);
if (!emergency)
{
#if defined _MSC_VER && defined QGC_SPEECH_ENABLED
pVoice->Speak(text.toStdWString().c_str(), SPF_ASYNC, NULL);
#elif defined Q_OS_LINUX && defined QGC_SPEECH_ENABLED
// Set size of string for espeak: +1 for the null-character
unsigned int espeak_size = strlen(text.toStdString().c_str()) + 1;
espeak_Synth(text.toStdString().c_str(), espeak_size, 0, POS_CHARACTER, 0, espeakCHARS_AUTO, NULL, NULL);
#elif defined Q_OS_MAC && defined QGC_SPEECH_ENABLED
// Slashes necessary to have the right start to the sentence
// copying data prevents SpeakString from reading additional chars
text = "\\" + text;
std::wstring str = text.toStdWString();
unsigned char str2[1024] = {};
memcpy(str2, text.toLatin1().data(), str.length());
SpeakString(str2);
// Block the thread while busy
// because we run in our own thread, this doesn't
// halt the main application
while (SpeechBusy()) {
QGC::SLEEP::msleep(100);
}
#else
// Make sure there isn't an unused variable warning when speech output is disabled
Q_UNUSED(text);
#endif
}
}
}
void QGCAudioWorker::mute(bool mute)
{
if (mute != muted)
{
this->muted = mute;
QSettings settings;
settings.setValue(QGC_GAUDIOOUTPUT_KEY + "muted", this->muted);
// emit mutedChanged(muted);
}
}
bool QGCAudioWorker::isMuted()
{
return this->muted;
}