OpenAL-Soft does not allow to stop Qt5 application

[8Observer8]

Hi,

I cannot stop the application:

Widget.h

#ifndef WIDGET_H
#define WIDGET_H

#include <QtWidgets/QWidget>
#include <AL/alc.h>
#include <AL/al.h>

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();

private:
    ALCdevice *m_pALCDevice;
    ALCcontext *m_pALCContext;
};
#endif // WIDGET_H

Widget.cpp

#include "Widget.h"
#include <iostream>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
{
    const char *devicename = alcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER);
    m_pALCDevice = alcOpenDevice(devicename);
    std::cerr << alGetError() << std::endl;
    if (!m_pALCDevice)
    {
        std::cerr << "Failed to get sound device" << std::endl;
        return;
    }
}

Widget::~Widget()
{
    if (!alcMakeContextCurrent(nullptr))
    {
        std::cerr << "Failed to set context to nullptr" << std::endl;
    }

    if (!alcCloseDevice(m_pALCDevice))
    {
        std::cerr << "Failed to close sound device" << std::endl;
    }
}

main.cpp

#include "Widget.h"

#include <QtWidgets/QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();
    return a.exec();
}

.pro

QT       += core gui

INCLUDEPATH += "E:\Libs\openal-soft-1.22.0-bin\include"
LIBS += -L"E:\Libs\openal-soft-1.22.0-bin\libs\Win32"
LIBS += -lOpenAL32.dll

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++11

# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
    main.cpp \
    Widget.cpp

HEADERS += \
    Widget.h

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

RESOURCES += \
    Sounds.qrc

[SGaist]

Hi,

What happens to your application ?

[8Observer8]

@SGaist said in OpenAL-Soft does not allow to stop Qt5 application:

What happens to your application ?

I added the closeEvent() and openAlErrorToString() methods:

Widget.cpp

#include "Widget.h"
#include <iostream>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
{
//    const char *devicename = alcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER);
    m_pALCDevice = alcOpenDevice(nullptr);
    std::cerr << openAlErrorToString(alGetError()) << std::endl;
    if (!m_pALCDevice)
    {
        std::cerr << "Failed to get sound device" << std::endl;
        return;
    }
}

Widget::~Widget()
{

}

void Widget::closeEvent(QCloseEvent *event)
{
    if (!alcMakeContextCurrent(nullptr))
    {
        std::cerr << "Failed to set context to nullptr" << std::endl;
    }

    if (!alcCloseDevice(m_pALCDevice))
    {
        std::cerr << "Failed to close sound device" << std::endl;
    }
}

std::string Widget::openAlErrorToString(int err)
{
    switch (err)
    {
      case AL_NO_ERROR: return "AL_NO_ERROR";
      case AL_INVALID_OPERATION: return "AL_INVALID_OPERATION";
      case AL_INVALID_NAME: return "AL_INVALID_NAME";
      case AL_INVALID_ENUM: return "AL_INVALID_ENUM";
      case AL_INVALID_VALUE: return "AL_INVALID_VALUE";
      case AL_OUT_OF_MEMORY: return "AL_OUT_OF_MEMORY";
      /* ... */
      default:
        return "Unknown error code";
    }
}

Widget.h

#ifndef WIDGET_H
#define WIDGET_H

#include <QtWidgets/QWidget>
#include <AL/alc.h>
#include <AL/al.h>

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();

private:
    void closeEvent(QCloseEvent *event) override;
    std::string openAlErrorToString(int err);

    ALCdevice *m_pALCDevice;
    ALCcontext *m_pALCContext;
};
#endif // WIDGET_H

[8Observer8]

I have another example where I play a sound but that example has the same problem with closing the application.

[8Observer8]

I found another library that works fine:

Widget.h

#ifndef WIDGET_H
#define WIDGET_H

#include <QtWidgets/QWidget>
#include <fmod.h>

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();

private:
    FMOD_SYSTEM *m_pSystem;
    FMOD_SOUND *m_pSound;
};
#endif // WIDGET_H

Widget.cpp

#include "Widget.h"
#include <QtCore/QFile>
#include <QtCore/QDebug>

// https://forum.qt.io/topic/49342/solved-fmod-does-not-play-a-sound-from-qresource/2

Widget::Widget(QWidget *parent)
    : QWidget(parent)
{
    FMOD_System_Create(&m_pSystem, FMOD_VERSION);
    FMOD_System_Init(m_pSystem, 32, FMOD_INIT_NORMAL, 0);

//    FMOD_System_CreateSound(m_pSystem, "Assets/spell.ogg", FMOD_DEFAULT, 0, &m_pSound);

    QString soundPath(":/Assets/spell.ogg");
    QFile f(soundPath);
    if (!f.open(QIODevice::ReadOnly))
    {
        qDebug() << "Faild to open the file: " << soundPath;
        return;
    }
    QByteArray soundData = f.readAll();

    FMOD_CREATESOUNDEXINFO* exinfo = new FMOD_CREATESOUNDEXINFO();
    exinfo->length = static_cast<unsigned int>(soundData.length());
    exinfo->cbsize = sizeof(FMOD_CREATESOUNDEXINFO);
    FMOD_System_CreateSound(m_pSystem, soundData.data(), FMOD_OPENMEMORY, exinfo, &m_pSound);

    FMOD_Sound_SetMode(m_pSound, FMOD_LOOP_OFF);

    FMOD_System_PlaySound(m_pSystem, m_pSound, 0, false, 0);
}

Widget::~Widget()
{
}

main.cpp

#include "Widget.h"

#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();
    return a.exec();
}

.pro

QT       += core gui

INCLUDEPATH += "C:\Program Files (x86)\FMOD SoundSystem\FMOD Studio API Windows\api\core\inc"
LIBS += -L"C:\Program Files (x86)\FMOD SoundSystem\FMOD Studio API Windows\api\core\lib\x86"
LIBS += -lfmod

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++11

# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
    main.cpp \
    Widget.cpp

HEADERS += \
    Widget.h

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

RESOURCES += \
    Assets.qrc