Initial copy of QtMultimediaKit.

Comes from original repo, with SHA1:
2c82d5611655e5967f5c5095af50c0991c4378b2

4 files changed, 506 insertions, 0 deletions

diff --git a/examples/audiooutput/audiooutput.cpp b/examples/audiooutput/audiooutput.cpp
new file mode 100644
index 000000000..df0b226bb
--- /dev/null
+++ b/examples/audiooutput/audiooutput.cpp
@@ -0,0 +1,314 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QDebug>
+#include <QVBoxLayout>
+
+#include <qaudiooutput.h>
+#include <qaudiodeviceinfo.h>
+#include <QtCore/qmath.h>
+#include <QtCore/qendian.h>
+#include "audiooutput.h"
+
+const QString AudioTest::PushModeLabel(tr("Enable push mode"));
+const QString AudioTest::PullModeLabel(tr("Enable pull mode"));
+const QString AudioTest::SuspendLabel(tr("Suspend playback"));
+const QString AudioTest::ResumeLabel(tr("Resume playback"));
+
+const int DurationSeconds = 1;
+const int ToneFrequencyHz = 600;
+const int DataFrequencyHz = 44100;
+const int BufferSize      = 32768;
+
+
+Generator::Generator(const QAudioFormat &format,
+                     qint64 durationUs,
+                     int frequency,
+                     QObject *parent)
+    :   QIODevice(parent)
+    ,   m_pos(0)
+{
+    generateData(format, durationUs, frequency);
+}
+
+Generator::~Generator()
+{
+
+}
+
+void Generator::start()
+{
+    open(QIODevice::ReadOnly);
+}
+
+void Generator::stop()
+{
+    m_pos = 0;
+    close();
+}
+
+void Generator::generateData(const QAudioFormat &format, qint64 durationUs, int frequency)
+{
+    const int channelBytes = format.sampleSize() / 8;
+    const int sampleBytes = format.channels() * channelBytes;
+
+    qint64 length = (format.frequency() * format.channels() * (format.sampleSize() / 8))
+                        * durationUs / 100000;
+
+    Q_ASSERT(length % sampleBytes == 0);
+    Q_UNUSED(sampleBytes) // suppress warning in release builds
+
+    m_buffer.resize(length);
+    unsigned char *ptr = reinterpret_cast<unsigned char *>(m_buffer.data());
+    int sampleIndex = 0;
+
+    while (length) {
+        const qreal x = qSin(2 * M_PI * frequency * qreal(sampleIndex % format.frequency()) / format.frequency());
+        for (int i=0; i<format.channels(); ++i) {
+            if (format.sampleSize() == 8 && format.sampleType() == QAudioFormat::UnSignedInt) {
+                const quint8 value = static_cast<quint8>((1.0 + x) / 2 * 255);
+                *reinterpret_cast<quint8*>(ptr) = value;
+            } else if (format.sampleSize() == 8 && format.sampleType() == QAudioFormat::SignedInt) {
+                const qint8 value = static_cast<qint8>(x * 127);
+                *reinterpret_cast<quint8*>(ptr) = value;
+            } else if (format.sampleSize() == 16 && format.sampleType() == QAudioFormat::UnSignedInt) {
+                quint16 value = static_cast<quint16>((1.0 + x) / 2 * 65535);
+                if (format.byteOrder() == QAudioFormat::LittleEndian)
+                    qToLittleEndian<quint16>(value, ptr);
+                else
+                    qToBigEndian<quint16>(value, ptr);
+            } else if (format.sampleSize() == 16 && format.sampleType() == QAudioFormat::SignedInt) {
+                qint16 value = static_cast<qint16>(x * 32767);
+                if (format.byteOrder() == QAudioFormat::LittleEndian)
+                    qToLittleEndian<qint16>(value, ptr);
+                else
+                    qToBigEndian<qint16>(value, ptr);
+            }
+
+            ptr += channelBytes;
+            length -= channelBytes;
+        }
+        ++sampleIndex;
+    }
+}
+
+qint64 Generator::readData(char *data, qint64 len)
+{
+    qint64 total = 0;
+    while (len - total > 0) {
+        const qint64 chunk = qMin((m_buffer.size() - m_pos), len - total);
+        memcpy(data + total, m_buffer.constData() + m_pos, chunk);
+        m_pos = (m_pos + chunk) % m_buffer.size();
+        total += chunk;
+    }
+    return total;
+}
+
+qint64 Generator::writeData(const char *data, qint64 len)
+{
+    Q_UNUSED(data);
+    Q_UNUSED(len);
+
+    return 0;
+}
+
+qint64 Generator::bytesAvailable() const
+{
+    return m_buffer.size() + QIODevice::bytesAvailable();
+}
+
+AudioTest::AudioTest()
+    :   m_pullTimer(new QTimer(this))
+    ,   m_modeButton(0)
+    ,   m_suspendResumeButton(0)
+    ,   m_deviceBox(0)
+    ,   m_device(QAudioDeviceInfo::defaultOutputDevice())
+    ,   m_generator(0)
+    ,   m_audioOutput(0)
+    ,   m_output(0)
+    ,   m_buffer(BufferSize, 0)
+{
+    initializeWindow();
+    initializeAudio();
+}
+
+void AudioTest::initializeWindow()
+{
+    QScopedPointer<QWidget> window(new QWidget);
+    QScopedPointer<QVBoxLayout> layout(new QVBoxLayout);
+
+    m_deviceBox = new QComboBox(this);
+    foreach (const QAudioDeviceInfo &deviceInfo, QAudioDeviceInfo::availableDevices(QAudio::AudioOutput))
+        m_deviceBox->addItem(deviceInfo.deviceName(), qVariantFromValue(deviceInfo));
+    connect(m_deviceBox,SIGNAL(activated(int)),SLOT(deviceChanged(int)));
+    layout->addWidget(m_deviceBox);
+
+    m_modeButton = new QPushButton(this);
+    m_modeButton->setText(PushModeLabel);
+    connect(m_modeButton, SIGNAL(clicked()), SLOT(toggleMode()));
+    layout->addWidget(m_modeButton);
+
+    m_suspendResumeButton = new QPushButton(this);
+    m_suspendResumeButton->setText(SuspendLabel);
+    connect(m_suspendResumeButton, SIGNAL(clicked()), SLOT(toggleSuspendResume()));
+    layout->addWidget(m_suspendResumeButton);
+
+    window->setLayout(layout.data());
+    layout.take(); // ownership transferred
+
+    setCentralWidget(window.data());
+    QWidget *const windowPtr = window.take(); // ownership transferred
+    windowPtr->show();
+}
+
+void AudioTest::initializeAudio()
+{
+    connect(m_pullTimer, SIGNAL(timeout()), SLOT(pullTimerExpired()));
+
+    m_pullMode = true;
+
+    m_format.setFrequency(DataFrequencyHz);
+    m_format.setChannels(1);
+    m_format.setSampleSize(16);
+    m_format.setCodec("audio/pcm");
+    m_format.setByteOrder(QAudioFormat::LittleEndian);
+    m_format.setSampleType(QAudioFormat::SignedInt);
+
+    QAudioDeviceInfo info(QAudioDeviceInfo::defaultOutputDevice());
+    if (!info.isFormatSupported(m_format)) {
+        qWarning() << "Default format not supported - trying to use nearest";
+        m_format = info.nearestFormat(m_format);
+    }
+
+    m_generator = new Generator(m_format, DurationSeconds*1000000, ToneFrequencyHz, this);
+
+    createAudioOutput();
+}
+
+void AudioTest::createAudioOutput()
+{
+    delete m_audioOutput;
+    m_audioOutput = 0;
+    m_audioOutput = new QAudioOutput(m_device, m_format, this);
+    connect(m_audioOutput, SIGNAL(notify()), SLOT(notified()));
+    connect(m_audioOutput, SIGNAL(stateChanged(QAudio::State)), SLOT(stateChanged(QAudio::State)));
+    m_generator->start();
+    m_audioOutput->start(m_generator);
+}
+
+AudioTest::~AudioTest()
+{
+
+}
+
+void AudioTest::deviceChanged(int index)
+{
+    m_pullTimer->stop();
+    m_generator->stop();
+    m_audioOutput->stop();
+    m_audioOutput->disconnect(this);
+    m_device = m_deviceBox->itemData(index).value<QAudioDeviceInfo>();
+    createAudioOutput();
+}
+
+void AudioTest::notified()
+{
+    qWarning() << "bytesFree = " << m_audioOutput->bytesFree()
+               << ", " << "elapsedUSecs = " << m_audioOutput->elapsedUSecs()
+               << ", " << "processedUSecs = " << m_audioOutput->processedUSecs();
+}
+
+void AudioTest::pullTimerExpired()
+{
+    if (m_audioOutput && m_audioOutput->state() != QAudio::StoppedState) {
+        int chunks = m_audioOutput->bytesFree()/m_audioOutput->periodSize();
+        while (chunks) {
+           const qint64 len = m_generator->read(m_buffer.data(), m_audioOutput->periodSize());
+           if (len)
+               m_output->write(m_buffer.data(), len);
+           if (len != m_audioOutput->periodSize())
+               break;
+           --chunks;
+        }
+    }
+}
+
+void AudioTest::toggleMode()
+{
+    m_pullTimer->stop();
+    m_audioOutput->stop();
+
+    if (m_pullMode) {
+        m_modeButton->setText(PullModeLabel);
+        m_output = m_audioOutput->start();
+        m_pullMode = false;
+        m_pullTimer->start(20);
+    } else {
+        m_modeButton->setText(PushModeLabel);
+        m_pullMode = true;
+        m_audioOutput->start(m_generator);
+    }
+
+    m_suspendResumeButton->setText(SuspendLabel);
+}
+
+void AudioTest::toggleSuspendResume()
+{
+    if (m_audioOutput->state() == QAudio::SuspendedState) {
+        qWarning() << "status: Suspended, resume()";
+        m_audioOutput->resume();
+        m_suspendResumeButton->setText(SuspendLabel);
+    } else if (m_audioOutput->state() == QAudio::ActiveState) {
+        qWarning() << "status: Active, suspend()";
+        m_audioOutput->suspend();
+        m_suspendResumeButton->setText(ResumeLabel);
+    } else if (m_audioOutput->state() == QAudio::StoppedState) {
+        qWarning() << "status: Stopped, resume()";
+        m_audioOutput->resume();
+        m_suspendResumeButton->setText(SuspendLabel);
+    } else if (m_audioOutput->state() == QAudio::IdleState) {
+        qWarning() << "status: IdleState";
+    }
+}
+
+void AudioTest::stateChanged(QAudio::State state)
+{
+    qWarning() << "state = " << state;
+}
diff --git a/examples/audiooutput/audiooutput.h b/examples/audiooutput/audiooutput.h
new file mode 100644
index 000000000..805168e7c
--- /dev/null
+++ b/examples/audiooutput/audiooutput.h
@@ -0,0 +1,122 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef AUDIOOUTPUT_H
+#define AUDIOOUTPUT_H
+
+#include <math.h>
+
+#include <QObject>
+#include <QMainWindow>
+#include <QIODevice>
+#include <QTimer>
+#include <QPushButton>
+#include <QComboBox>
+#include <QByteArray>
+
+#include <qaudiooutput.h>
+
+class Generator : public QIODevice
+{
+    Q_OBJECT
+public:
+    Generator(const QAudioFormat &format, qint64 durationUs, int frequency, QObject *parent);
+    ~Generator();
+
+    void start();
+    void stop();
+
+    qint64 readData(char *data, qint64 maxlen);
+    qint64 writeData(const char *data, qint64 len);
+    qint64 bytesAvailable() const;
+
+private:
+    void generateData(const QAudioFormat &format, qint64 durationUs, int frequency);
+
+private:
+    qint64 m_pos;
+    QByteArray m_buffer;
+};
+
+class AudioTest : public QMainWindow
+{
+    Q_OBJECT
+public:
+    AudioTest();
+    ~AudioTest();
+
+private:
+    void initializeWindow();
+    void initializeAudio();
+    void createAudioOutput();
+
+private:
+    QTimer*          m_pullTimer;
+
+    // Owned by layout
+    QPushButton*     m_modeButton;
+    QPushButton*     m_suspendResumeButton;
+    QComboBox*       m_deviceBox;
+
+    QAudioDeviceInfo m_device;
+    Generator*       m_generator;
+    QAudioOutput*    m_audioOutput;
+    QIODevice*       m_output; // not owned
+    QAudioFormat     m_format;
+
+    bool             m_pullMode;
+    QByteArray       m_buffer;
+
+    static const QString PushModeLabel;
+    static const QString PullModeLabel;
+    static const QString SuspendLabel;
+    static const QString ResumeLabel;
+
+private slots:
+    void notified();
+    void pullTimerExpired();
+    void toggleMode();
+    void toggleSuspendResume();
+    void stateChanged(QAudio::State state);
+    void deviceChanged(int index);
+};
+
+#endif
+
diff --git a/examples/audiooutput/audiooutput.pro b/examples/audiooutput/audiooutput.pro
new file mode 100644
index 000000000..63d037f60
--- /dev/null
+++ b/examples/audiooutput/audiooutput.pro
@@ -0,0 +1,15 @@
+TEMPLATE = app
+CONFIG += example
+
+INCLUDEPATH += ../../src/multimedia ../../src/multimedia/audio
+include(../mobility_examples.pri)
+
+CONFIG += mobility
+MOBILITY = multimedia
+
+QMAKE_RPATHDIR += $$DESTDIR
+
+HEADERS       = audiooutput.h
+
+SOURCES       = audiooutput.cpp \
+                main.cpp
diff --git a/examples/audiooutput/main.cpp b/examples/audiooutput/main.cpp
new file mode 100644
index 000000000..93f972d04
--- /dev/null
+++ b/examples/audiooutput/main.cpp
@@ -0,0 +1,55 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <QtGui>
+
+#include "audiooutput.h"
+
+int main(int argv, char **args)
+{
+    QApplication app(argv, args);
+    app.setApplicationName("Audio Output Test");
+
+    AudioTest audio;
+    audio.show();
+
+    return app.exec();
+}