Russian Qt Forum

0	__memmove_ssse3_back	/usr/lib/debug/lib/x86_64-linux-gnu/libc-2.19.so	93	0x7ffff397c200	
1	QIODevice::read(char *, long long)			0x7ffff4b3731d	
2	??			0x7fffd5f0a424	
3	QMetaObject::activate(QObject *, int, int, void * *)			0x7ffff4c3a36e	
4	QTimer::timerEvent(QTimerEvent *)			0x7ffff4c478c8	
5	QObject::event(QEvent *)			0x7ffff4c3b3bb	
6	QApplicationPrivate::notify_helper(QObject *, QEvent *)			0x7ffff5fc14dc	
7	QApplication::notify(QObject *, QEvent *)			0x7ffff5fc6640	
8	QCoreApplication::notifyInternal(QObject *, QEvent *)			0x7ffff4c0c6a3	
9	QTimerInfoList::activateTimers()			0x7ffff4c609ed	
10	??			0x7ffff4c60e31	
11	g_main_context_dispatch			0x7ffff2239c5d	
12	??			0x7ffff2239f48	
13	g_main_context_iteration			0x7ffff2239ffc	
14	QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)			0x7ffff4c61ae7	
15	QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)			0x7ffff4c0a252	
16	QCoreApplication::exec()			0x7ffff4c11d3d	
17	main	main.cpp	41	0x4217c4	

int main(int argc, char *argv[]){
    QCoreApplication a(argc, argv);
    MainModule* m = new MainModule();
    return a.exec();
}

MainModule::MainModule(){
    audio.initialize();
    QFile file;
    file.setFileName("/home/path/to/file/1.wav");
    file.open(QIODevice::ReadOnly);
    QByteArray ba = file.readAll();
    audio.playSound(ba);
}

void Audio::initialize(){
    this->outputFormat.setSampleRate(44100);
    this->outputFormat.setChannelCount(1);
    this->outputFormat.setSampleSize(16);
    this->outputFormat.setCodec("audio/pcm");
    this->outputFormat.setByteOrder(QAudioFormat::LittleEndian);
    this->outputFormat.setSampleType(QAudioFormat::SignedInt);
    QAudioDeviceInfo outputInfo(QAudioDeviceInfo::defaultOutputDevice());
    if (!outputInfo.isFormatSupported(outputFormat)){
        return;
    }
    this->player = new QAudioOutput(this->outputFormat);
}

void Audio::playSound(QByteArray& sound){
    if(this->player != 0){
        QByteArray temp = sound;
        QBuffer buffer(&temp);
        buffer.open(QIODevice::ReadOnly);
        this->player->start(&buffer);
        QObject::connect(this->player, SIGNAL(stateChanged(QAudio::State)), &this->audioLoop, SLOT(quit()));
        do{
            this->audioLoop.exec();
        }while(this->player->state() == QAudio::ActiveState && this->player != 0);
        buffer.close();
    }
}

void Audio::quitLoop(){
    if(this->audioLoop.isRunning())
        this->audioLoop.quit();
    if(this->player != 0)
        this->player->stop();
}

#include <QBuffer>
#include <QAudioOutput>
#include <QEventLoop>

class Audio : public QObject {
    Q_OBJECT
public:
    void initialize();
    
public slots:
    void playSound(const QByteArray& sound);

public:
	Audio();
	~Audio();
    QAudioOutput* player;
    QAudioFormat outputFormat;
    QEventLoop audioLoop;
	QByteArray outputByteArray;
	bool initializeAudioOutput();
    void quitLoop();
};

#include "audio.h"

class MainModule : public QObject{
    Q_OBJECT
public:
    MainModule();
private:
    Audio				audio;
};

this->player->stop();