Changes to low-level audio API.

QAudioFormat::isNull() -> QAudioFormat::isValid() (inverse logic)
QAudio::SuspendState -> QAudio::SuspendedState
QAudio::StopState -> QAudio::StoppedState
QAudioDeviceInfo::deviceList() -> QAudioDeviceInfo::availableDevices()
clock() -> elapsedUSecs()
totalTime() -> processedUSecs()
QIODevice* start(QIODevice*) -> void start(QIODevice*), QIODevice*
start()

Reviewed-by:Justin McPherson

40 files changed, 267 insertions, 249 deletions

diff --git a/examples/multimedia/audiodevices/audiodevices.cpp b/examples/multimedia/audiodevices/audiodevices.cpp
index 4198605..e205e03 100644
--- a/examples/multimedia/audiodevices/audiodevices.cpp
+++ b/examples/multimedia/audiodevices/audiodevices.cpp
@@ -148,7 +148,7 @@ void AudioTest::modeChanged(int idx)
         mode=QAudio::AudioOutput;
 
     deviceBox->clear();
-    foreach (const QAudioDeviceInfo &deviceInfo, QAudioDeviceInfo::deviceList(mode))
+    foreach (const QAudioDeviceInfo &deviceInfo, QAudioDeviceInfo::availableDevices(mode))
         deviceBox->addItem(deviceInfo.deviceName(), qVariantFromValue(deviceInfo));
 }
 
diff --git a/examples/multimedia/audioinput/audioinput.cpp b/examples/multimedia/audioinput/audioinput.cpp
index 3d537a2..62afd73 100644
--- a/examples/multimedia/audioinput/audioinput.cpp
+++ b/examples/multimedia/audioinput/audioinput.cpp
@@ -170,7 +170,7 @@ InputTest::InputTest()
     layout->addWidget(canvas);
 
     deviceBox = new QComboBox(this);
-    QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::deviceList(QAudio::AudioInput);
+    QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::availableDevices(QAudio::AudioInput);
     for(int i = 0; i < devices.size(); ++i) {
         deviceBox->addItem(devices.at(i).deviceName(), qVariantFromValue(devices.at(i)));
     }
@@ -216,7 +216,7 @@ InputTest::~InputTest() {}
 
 void InputTest::status()
 {
-    qWarning()<<"bytesReady = "<<audioInput->bytesReady()<<" bytes, clock = "<<audioInput->clock()/1000<<"ms, totalTime = "<<audioInput->totalTime()/1000<<"ms";
+    qWarning()<<"bytesReady = "<<audioInput->bytesReady()<<" bytes, elapsedUSecs = "<<audioInput->elapsedUSecs()<<", processedUSecs = "<<audioInput->processedUSecs();
 }
 
 void InputTest::readMore()
@@ -239,7 +239,7 @@ void InputTest::toggleMode()
 
     if (pullMode) {
         button->setText(tr("Click for Pull Mode"));
-        input = audioInput->start(0);
+        input = audioInput->start();
         connect(input,SIGNAL(readyRead()),SLOT(readMore()));
         pullMode = false;
     } else {
@@ -252,7 +252,7 @@ void InputTest::toggleMode()
 void InputTest::toggleSuspend()
 {
     // toggle suspend/resume
-    if(audioInput->state() == QAudio::SuspendState) {
+    if(audioInput->state() == QAudio::SuspendedState) {
         qWarning()<<"status: Suspended, resume()";
         audioInput->resume();
         button2->setText("Click To Suspend");
@@ -260,7 +260,7 @@ void InputTest::toggleSuspend()
         qWarning()<<"status: Active, suspend()";
         audioInput->suspend();
         button2->setText("Click To Resume");
-    } else if (audioInput->state() == QAudio::StopState) {
+    } else if (audioInput->state() == QAudio::StoppedState) {
         qWarning()<<"status: Stopped, resume()";
         audioInput->resume();
         button2->setText("Click To Suspend");
diff --git a/examples/multimedia/audiooutput/audiooutput.cpp b/examples/multimedia/audiooutput/audiooutput.cpp
index c92bbaf..244840d 100644
--- a/examples/multimedia/audiooutput/audiooutput.cpp
+++ b/examples/multimedia/audiooutput/audiooutput.cpp
@@ -134,7 +134,7 @@ AudioTest::AudioTest()
     QVBoxLayout* layout = new QVBoxLayout;
 
     deviceBox = new QComboBox(this);
-    foreach (const QAudioDeviceInfo &deviceInfo, QAudioDeviceInfo::deviceList(QAudio::AudioOutput))
+    foreach (const QAudioDeviceInfo &deviceInfo, QAudioDeviceInfo::availableDevices(QAudio::AudioOutput))
         deviceBox->addItem(deviceInfo.deviceName(), qVariantFromValue(deviceInfo));
     connect(deviceBox,SIGNAL(activated(int)),SLOT(deviceChanged(int)));
     layout->addWidget(deviceBox);
@@ -200,7 +200,7 @@ void AudioTest::deviceChanged(int idx)
 
 void AudioTest::status()
 {
-    qWarning()<<"byteFree = "<<audioOutput->bytesFree()<<" bytes, clock = "<<audioOutput->clock()/1000<<"ms, totalTime = "<<audioOutput->totalTime()/1000<<"ms";
+    qWarning()<<"byteFree = "<<audioOutput->bytesFree()<<" bytes, elapsedUSecs = "<<audioOutput->elapsedUSecs()<<", processedUSecs = "<<audioOutput->processedUSecs();
 }
 
 void AudioTest::writeMore()
@@ -208,7 +208,7 @@ void AudioTest::writeMore()
     if(!audioOutput)
         return;
 
-    if(audioOutput->state() == QAudio::StopState)
+    if(audioOutput->state() == QAudio::StoppedState)
         return;
 
     int    l;
@@ -234,7 +234,7 @@ void AudioTest::toggle()
 
     if (pullMode) {
         button->setText("Click for Pull Mode");
-        output = audioOutput->start(0);
+        output = audioOutput->start();
         pullMode = false;
         timer->start(20);
     } else {
@@ -247,7 +247,7 @@ void AudioTest::toggle()
 void AudioTest::togglePlay()
 {
     // toggle suspend/resume
-    if(audioOutput->state() == QAudio::SuspendState) {
+    if(audioOutput->state() == QAudio::SuspendedState) {
         qWarning()<<"status: Suspended, resume()";
         audioOutput->resume();
         button2->setText("Click To Suspend");
@@ -255,7 +255,7 @@ void AudioTest::togglePlay()
         qWarning()<<"status: Active, suspend()";
         audioOutput->suspend();
         button2->setText("Click To Resume");
-    } else if (audioOutput->state() == QAudio::StopState) {
+    } else if (audioOutput->state() == QAudio::StoppedState) {
         qWarning()<<"status: Stopped, resume()";
         audioOutput->resume();
         button2->setText("Click To Suspend");
diff --git a/src/multimedia/audio/qaudio.cpp b/src/multimedia/audio/qaudio.cpp
index 04378d4..b687f34 100644
--- a/src/multimedia/audio/qaudio.cpp
+++ b/src/multimedia/audio/qaudio.cpp
@@ -71,23 +71,23 @@ public:
 /*!
     \enum QAudio::Error
 
-    \value NoError       No errors have occurred
-    \value OpenError     An error opening the audio device
-    \value IOError       An error occurred during read/write of audio device
-    \value UnderrunError Audio data is not being fed to the audio device at a fast enough rate
-    \value FatalError    A non-recoverable error has occurred, the audio device is not usable at this time.
+    \value NoError         No errors have occurred
+    \value OpenError       An error opening the audio device
+    \value IOError         An error occurred during read/write of audio device
+    \value UnderrunError   Audio data is not being fed to the audio device at a fast enough rate
+    \value FatalError      A non-recoverable error has occurred, the audio device is not usable at this time.
 */
 
 /*!
     \enum QAudio::State
 
-    \value ActiveState   Audio data is being processed, this state is set after start() is called
-                         and while audio data is available to be processed.
-    \value SuspendState  The audio device is in a suspended state, this state will only be entered
-                         after suspend() is called.
-    \value StopState     The audio device is closed, not processing any audio data
-    \value IdleState     The QIODevice passed in has no data and audio system's buffer is empty, this state
-                         is set after start() is called and while no audio data is available to be processed.
+    \value ActiveState     Audio data is being processed, this state is set after start() is called
+                           and while audio data is available to be processed.
+    \value SuspendedState  The audio device is in a suspended state, this state will only be entered
+                           after suspend() is called.
+    \value StoppedState    The audio device is closed, not processing any audio data
+    \value IdleState       The QIODevice passed in has no data and audio system's buffer is empty, this state
+                           is set after start() is called and while no audio data is available to be processed.
 */
 
 /*!
diff --git a/src/multimedia/audio/qaudio.h b/src/multimedia/audio/qaudio.h
index a66f0b1..531e1a7 100644
--- a/src/multimedia/audio/qaudio.h
+++ b/src/multimedia/audio/qaudio.h
@@ -56,7 +56,7 @@ QT_MODULE(Multimedia)
 namespace QAudio
 {
     enum Error { NoError, OpenError, IOError, UnderrunError, FatalError };
-    enum State { ActiveState, SuspendState, StopState, IdleState };
+    enum State { ActiveState, SuspendedState, StoppedState, IdleState };
     enum Mode { AudioInput, AudioOutput };
 }
 
diff --git a/src/multimedia/audio/qaudiodevicefactory.cpp b/src/multimedia/audio/qaudiodevicefactory.cpp
index 8804fb6..89e4394 100644
--- a/src/multimedia/audio/qaudiodevicefactory.cpp
+++ b/src/multimedia/audio/qaudiodevicefactory.cpp
@@ -94,10 +94,10 @@ public:
     int bufferSize() const  { return 0; }
     void setNotifyInterval(int ) {}
     int notifyInterval() const { return 0; }
-    qint64 totalTime() const { return 0; }
-    qint64 clock() const { return 0; }
+    qint64 processedUSecs() const { return 0; }
+    qint64 elapsedUSecs() const { return 0; }
     QAudio::Error error() const { return QAudio::OpenError; }
-    QAudio::State state() const { return QAudio::StopState; }
+    QAudio::State state() const { return QAudio::StoppedState; }
     QAudioFormat format() const { return QAudioFormat(); }
 };
 
@@ -115,18 +115,18 @@ public:
     int bufferSize() const  { return 0; }
     void setNotifyInterval(int ) {}
     int notifyInterval() const { return 0; }
-    qint64 totalTime() const { return 0; }
-    qint64 clock() const { return 0; }
+    qint64 processedUSecs() const { return 0; }
+    qint64 elapsedUSecs() const { return 0; }
     QAudio::Error error() const { return QAudio::OpenError; }
-    QAudio::State state() const { return QAudio::StopState; }
+    QAudio::State state() const { return QAudio::StoppedState; }
     QAudioFormat format() const { return QAudioFormat(); }
 };
 
-QList<QAudioDeviceInfo> QAudioDeviceFactory::deviceList(QAudio::Mode mode)
+QList<QAudioDeviceInfo> QAudioDeviceFactory::availableDevices(QAudio::Mode mode)
 {
     QList<QAudioDeviceInfo> devices;
 #if (defined(Q_OS_WIN) || defined(Q_OS_MAC) || defined(HAS_ALSA))
-    foreach (const QByteArray &handle, QAudioDeviceInfoInternal::deviceList(mode))
+    foreach (const QByteArray &handle, QAudioDeviceInfoInternal::availableDevices(mode))
         devices << QAudioDeviceInfo(QLatin1String("builtin"), handle, mode);
 #endif
     QFactoryLoader* l = loader();
@@ -134,7 +134,7 @@ QList<QAudioDeviceInfo> QAudioDeviceFactory::deviceList(QAudio::Mode mode)
     foreach (QString const& key, l->keys()) {
         QAudioEngineFactoryInterface* plugin = qobject_cast<QAudioEngineFactoryInterface*>(l->instance(key));
         if (plugin) {
-            foreach (QByteArray const& handle, plugin->deviceList(mode))
+            foreach (QByteArray const& handle, plugin->availableDevices(mode))
                 devices << QAudioDeviceInfo(key, handle, mode);
         }
 
@@ -149,7 +149,7 @@ QAudioDeviceInfo QAudioDeviceFactory::defaultInputDevice()
     QAudioEngineFactoryInterface* plugin = qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(QLatin1String("default")));
 
     if (plugin) {
-        QList<QByteArray> list = plugin->deviceList(QAudio::AudioInput);
+        QList<QByteArray> list = plugin->availableDevices(QAudio::AudioInput);
         if (list.size() > 0)
             return QAudioDeviceInfo(QLatin1String("default"), list.at(0), QAudio::AudioInput);
     }
@@ -164,7 +164,7 @@ QAudioDeviceInfo QAudioDeviceFactory::defaultOutputDevice()
     QAudioEngineFactoryInterface* plugin = qobject_cast<QAudioEngineFactoryInterface*>(loader()->instance(QLatin1String("default")));
 
     if (plugin) {
-        QList<QByteArray> list = plugin->deviceList(QAudio::AudioOutput);
+        QList<QByteArray> list = plugin->availableDevices(QAudio::AudioOutput);
         if (list.size() > 0)
             return QAudioDeviceInfo(QLatin1String("default"), list.at(0), QAudio::AudioOutput);
     }
diff --git a/src/multimedia/audio/qaudiodevicefactory_p.h b/src/multimedia/audio/qaudiodevicefactory_p.h
index 008e4a8..2466455 100644
--- a/src/multimedia/audio/qaudiodevicefactory_p.h
+++ b/src/multimedia/audio/qaudiodevicefactory_p.h
@@ -72,7 +72,7 @@ class QAbstractAudioDeviceInfo;
 class QAudioDeviceFactory
 {
 public:
-    static QList<QAudioDeviceInfo> deviceList(QAudio::Mode mode);
+    static QList<QAudioDeviceInfo> availableDevices(QAudio::Mode mode);
 
     static QAudioDeviceInfo defaultInputDevice();
     static QAudioDeviceInfo defaultOutputDevice();
diff --git a/src/multimedia/audio/qaudiodeviceinfo.cpp b/src/multimedia/audio/qaudiodeviceinfo.cpp
index dce2884..5e3adcb 100644
--- a/src/multimedia/audio/qaudiodeviceinfo.cpp
+++ b/src/multimedia/audio/qaudiodeviceinfo.cpp
@@ -121,7 +121,7 @@ public:
     classes that communicate with the device--such as
     QAudioInput, and QAudioOutput. The static
     functions defaultInputDevice(), defaultOutputDevice(), and
-    deviceList() let you get a list of all available
+    availableDevices() let you get a list of all available
     devices. Devices are fetch according to the value of mode
     this is specified by the QAudio::Mode enum.
     The QAudioDeviceInfo returned are only valid for the QAudio::Mode.
@@ -129,7 +129,7 @@ public:
     For instance:
 
     \code
-    foreach(const QAudioDeviceInfo &deviceInfo, QAudioDeviceInfo::deviceList(QAudio::AudioOutput))
+    foreach(const QAudioDeviceInfo &deviceInfo, QAudioDeviceInfo::availableDevices(QAudio::AudioOutput))
         qDebug() << "Device name: " << deviceInfo.deviceName();
     \endcode
 
@@ -327,9 +327,9 @@ QAudioDeviceInfo QAudioDeviceInfo::defaultOutputDevice()
     Returns a list of audio devices that support \a mode.
 */
 
-QList<QAudioDeviceInfo> QAudioDeviceInfo::deviceList(QAudio::Mode mode)
+QList<QAudioDeviceInfo> QAudioDeviceInfo::availableDevices(QAudio::Mode mode)
 {
-    return QAudioDeviceFactory::deviceList(mode);
+    return QAudioDeviceFactory::availableDevices(mode);
 }
 
 
diff --git a/src/multimedia/audio/qaudiodeviceinfo.h b/src/multimedia/audio/qaudiodeviceinfo.h
index 53b9904..5c7cb98 100644
--- a/src/multimedia/audio/qaudiodeviceinfo.h
+++ b/src/multimedia/audio/qaudiodeviceinfo.h
@@ -92,7 +92,7 @@ public:
     static QAudioDeviceInfo defaultInputDevice();
     static QAudioDeviceInfo defaultOutputDevice();
 
-    static QList<QAudioDeviceInfo> deviceList(QAudio::Mode mode);
+    static QList<QAudioDeviceInfo> availableDevices(QAudio::Mode mode);
 
 private:
     QAudioDeviceInfo(const QString &realm, const QByteArray &handle, QAudio::Mode mode);
diff --git a/src/multimedia/audio/qaudiodeviceinfo_alsa_p.cpp b/src/multimedia/audio/qaudiodeviceinfo_alsa_p.cpp
index e828238..5de6c70 100644
--- a/src/multimedia/audio/qaudiodeviceinfo_alsa_p.cpp
+++ b/src/multimedia/audio/qaudiodeviceinfo_alsa_p.cpp
@@ -382,7 +382,7 @@ void QAudioDeviceInfoInternal::updateLists()
     close();
 }
 
-QList<QByteArray> QAudioDeviceInfoInternal::deviceList(QAudio::Mode mode)
+QList<QByteArray> QAudioDeviceInfoInternal::availableDevices(QAudio::Mode mode)
 {
     QList<QByteArray> devices;
     QByteArray filter;
@@ -444,7 +444,7 @@ QList<QByteArray> QAudioDeviceInfoInternal::deviceList(QAudio::Mode mode)
 
 QByteArray QAudioDeviceInfoInternal::defaultInputDevice()
 {
-    QList<QByteArray> devices = deviceList(QAudio::AudioInput);
+    QList<QByteArray> devices = availableDevices(QAudio::AudioInput);
     if(devices.size() == 0)
         return QByteArray();
 
@@ -453,7 +453,7 @@ QByteArray QAudioDeviceInfoInternal::defaultInputDevice()
 
 QByteArray QAudioDeviceInfoInternal::defaultOutputDevice()
 {
-    QList<QByteArray> devices = deviceList(QAudio::AudioOutput);
+    QList<QByteArray> devices = availableDevices(QAudio::AudioOutput);
     if(devices.size() == 0)
         return QByteArray();
 
diff --git a/src/multimedia/audio/qaudiodeviceinfo_alsa_p.h b/src/multimedia/audio/qaudiodeviceinfo_alsa_p.h
index 10078ca..5a807af 100644
--- a/src/multimedia/audio/qaudiodeviceinfo_alsa_p.h
+++ b/src/multimedia/audio/qaudiodeviceinfo_alsa_p.h
@@ -92,7 +92,7 @@ public:
     QList<QAudioFormat::SampleType> sampleTypeList();
     static QByteArray defaultInputDevice();
     static QByteArray defaultOutputDevice();
-    static QList<QByteArray> deviceList(QAudio::Mode);
+    static QList<QByteArray> availableDevices(QAudio::Mode);
 
 private:
     bool open();
diff --git a/src/multimedia/audio/qaudiodeviceinfo_mac_p.cpp b/src/multimedia/audio/qaudiodeviceinfo_mac_p.cpp
index ec07748..8905119 100644
--- a/src/multimedia/audio/qaudiodeviceinfo_mac_p.cpp
+++ b/src/multimedia/audio/qaudiodeviceinfo_mac_p.cpp
@@ -324,7 +324,7 @@ QByteArray QAudioDeviceInfoInternal::defaultOutputDevice()
     return get_device_info(audioDevice, QAudio::AudioOutput);
 }
 
-QList<QByteArray> QAudioDeviceInfoInternal::deviceList(QAudio::Mode mode)
+QList<QByteArray> QAudioDeviceInfoInternal::availableDevices(QAudio::Mode mode)
 {
     QList<QByteArray>   devices;
 
diff --git a/src/multimedia/audio/qaudiodeviceinfo_mac_p.h b/src/multimedia/audio/qaudiodeviceinfo_mac_p.h
index 60532a8..0fd3ef5 100644
--- a/src/multimedia/audio/qaudiodeviceinfo_mac_p.h
+++ b/src/multimedia/audio/qaudiodeviceinfo_mac_p.h
@@ -87,7 +87,7 @@ public:
     static QByteArray defaultInputDevice();
     static QByteArray defaultOutputDevice();
 
-    static QList<QByteArray> deviceList(QAudio::Mode mode);
+    static QList<QByteArray> availableDevices(QAudio::Mode mode);
 };
 
 QT_END_NAMESPACE
diff --git a/src/multimedia/audio/qaudiodeviceinfo_win32_p.cpp b/src/multimedia/audio/qaudiodeviceinfo_win32_p.cpp
index 69d5c94..33af022 100644
--- a/src/multimedia/audio/qaudiodeviceinfo_win32_p.cpp
+++ b/src/multimedia/audio/qaudiodeviceinfo_win32_p.cpp
@@ -103,6 +103,7 @@ QAudioFormat QAudioDeviceInfoInternal::preferredFormat() const
     } else {
         nearest.setFrequency(11025);
         nearest.setChannels(1);
+        nearest.setByteOrder(QAudioFormat::LittleEndian);
         nearest.setSampleType(QAudioFormat::SignedInt);
         nearest.setSampleSize(8);
         nearest.setCodec(QLatin1String("audio/pcm"));
@@ -333,7 +334,7 @@ void QAudioDeviceInfoInternal::updateLists()
     }
 }
 
-QList<QByteArray> QAudioDeviceInfoInternal::deviceList(QAudio::Mode mode)
+QList<QByteArray> QAudioDeviceInfoInternal::availableDevices(QAudio::Mode mode)
 {
     Q_UNUSED(mode)
 
diff --git a/src/multimedia/audio/qaudiodeviceinfo_win32_p.h b/src/multimedia/audio/qaudiodeviceinfo_win32_p.h
index 0d2ee29..e191b6f 100644
--- a/src/multimedia/audio/qaudiodeviceinfo_win32_p.h
+++ b/src/multimedia/audio/qaudiodeviceinfo_win32_p.h
@@ -93,7 +93,7 @@ public:
     QList<QAudioFormat::SampleType> sampleTypeList();
     static QByteArray defaultInputDevice();
     static QByteArray defaultOutputDevice();
-    static QList<QByteArray> deviceList(QAudio::Mode);
+    static QList<QByteArray> availableDevices(QAudio::Mode);
 
 private:
     QAudio::Mode mode;
diff --git a/src/multimedia/audio/qaudioengine.cpp b/src/multimedia/audio/qaudioengine.cpp
index c6e9d97..88e3804 100644
--- a/src/multimedia/audio/qaudioengine.cpp
+++ b/src/multimedia/audio/qaudioengine.cpp
@@ -189,12 +189,12 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
-    \fn virtual qint64 QAbstractAudioOutput::totalTime() const
+    \fn virtual qint64 QAbstractAudioOutput::processedUSecs() const
     Returns the amount of audio data processed since start() was called in milliseconds.
 */
 
 /*!
-    \fn virtual qint64 QAbstractAudioOutput::clock() const
+    \fn virtual qint64 QAbstractAudioOutput::elapsedUSecs() const
     Returns the milliseconds since start() was called, including time in Idle and suspend states.
 */
 
@@ -304,12 +304,12 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
-    \fn virtual qint64 QAbstractAudioInput::totalTime() const
+    \fn virtual qint64 QAbstractAudioInput::processedUSecs() const
     Returns the amount of audio data processed since start() was called in milliseconds.
 */
 
 /*!
-    \fn virtual qint64 QAbstractAudioInput::clock() const
+    \fn virtual qint64 QAbstractAudioInput::elapsedUSecs() const
     Returns the milliseconds since start() was called, including time in Idle and suspend states.
 */
 
diff --git a/src/multimedia/audio/qaudioengine.h b/src/multimedia/audio/qaudioengine.h
index 57a9ae6..f9e80c1 100644
--- a/src/multimedia/audio/qaudioengine.h
+++ b/src/multimedia/audio/qaudioengine.h
@@ -86,8 +86,8 @@ public:
     virtual int bufferSize() const = 0;
     virtual void setNotifyInterval(int milliSeconds) = 0;
     virtual int notifyInterval() const = 0;
-    virtual qint64 totalTime() const = 0;
-    virtual qint64 clock() const = 0;
+    virtual qint64 processedUSecs() const = 0;
+    virtual qint64 elapsedUSecs() const = 0;
     virtual QAudio::Error error() const = 0;
     virtual QAudio::State state() const = 0;
     virtual QAudioFormat format() const = 0;
@@ -113,8 +113,8 @@ public:
     virtual int bufferSize() const = 0;
     virtual void setNotifyInterval(int milliSeconds) = 0;
     virtual int notifyInterval() const = 0;
-    virtual qint64 totalTime() const = 0;
-    virtual qint64 clock() const = 0;
+    virtual qint64 processedUSecs() const = 0;
+    virtual qint64 elapsedUSecs() const = 0;
     virtual QAudio::Error error() const = 0;
     virtual QAudio::State state() const = 0;
     virtual QAudioFormat format() const = 0;
diff --git a/src/multimedia/audio/qaudioengineplugin.h b/src/multimedia/audio/qaudioengineplugin.h
index fe30e0d..82dfa15 100644
--- a/src/multimedia/audio/qaudioengineplugin.h
+++ b/src/multimedia/audio/qaudioengineplugin.h
@@ -60,7 +60,7 @@ QT_MODULE(Multimedia)
 
 struct Q_MULTIMEDIA_EXPORT QAudioEngineFactoryInterface : public QFactoryInterface
 {
-    virtual QList<QByteArray> deviceList(QAudio::Mode) const = 0;
+    virtual QList<QByteArray> availableDevices(QAudio::Mode) const = 0;
     virtual QAbstractAudioInput* createInput(const QByteArray& device, const QAudioFormat& format = QAudioFormat()) = 0;
     virtual QAbstractAudioOutput* createOutput(const QByteArray& device, const QAudioFormat& format = QAudioFormat()) = 0;
     virtual QAbstractAudioDeviceInfo* createDeviceInfo(const QByteArray& device, QAudio::Mode mode) = 0;
@@ -80,7 +80,7 @@ public:
     ~QAudioEnginePlugin();
 
     virtual QStringList keys() const = 0;
-    virtual QList<QByteArray> deviceList(QAudio::Mode) const = 0;
+    virtual QList<QByteArray> availableDevices(QAudio::Mode) const = 0;
     virtual QAbstractAudioInput* createInput(const QByteArray& device, const QAudioFormat& format = QAudioFormat()) = 0;
     virtual QAbstractAudioOutput* createOutput(const QByteArray& device, const QAudioFormat& format = QAudioFormat()) = 0;
     virtual QAbstractAudioDeviceInfo* createDeviceInfo(const QByteArray& device, QAudio::Mode mode) = 0;
diff --git a/src/multimedia/audio/qaudioformat.cpp b/src/multimedia/audio/qaudioformat.cpp
index 86fe85b..b2bbe14 100644
--- a/src/multimedia/audio/qaudioformat.cpp
+++ b/src/multimedia/audio/qaudioformat.cpp
@@ -38,7 +38,7 @@
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/
-
+#include <QDebug>
 #include <QtMultimedia/qaudioformat.h>
 
 
@@ -214,16 +214,13 @@ bool QAudioFormat::operator!=(const QAudioFormat& other) const
 }
 
 /*!
-    Returns true if any of the parameters are invalid.
+    Returns true if all of the parameters are valid.
 */
 
-bool QAudioFormat::isNull() const
+bool QAudioFormat::isValid() const
 {
-    return d->frequency == -1 && d->channels == -1 &&
-            d->sampleSize == -1 &&
-            d->byteOrder == QAudioFormat::Endian(QSysInfo::ByteOrder) &&
-            d->sampleType == QAudioFormat::Unknown &&
-            d->codec.isNull();
+    return d->frequency != -1 && d->channels != -1 && d->sampleSize != -1 &&
+            d->sampleType != QAudioFormat::Unknown && !d->codec.isEmpty();
 }
 
 /*!
diff --git a/src/multimedia/audio/qaudioformat.h b/src/multimedia/audio/qaudioformat.h
index d5841ce..7e92c2f 100644
--- a/src/multimedia/audio/qaudioformat.h
+++ b/src/multimedia/audio/qaudioformat.h
@@ -71,7 +71,7 @@ public:
     bool operator==(const QAudioFormat &other) const;
     bool operator!=(const QAudioFormat &other) const;
 
-    bool isNull() const;
+    bool isValid() const;
 
     void setFrequency(int frequency);
     int frequency() const;
diff --git a/src/multimedia/audio/qaudioinput.cpp b/src/multimedia/audio/qaudioinput.cpp
index 7a3be23..e794eaf 100644
--- a/src/multimedia/audio/qaudioinput.cpp
+++ b/src/multimedia/audio/qaudioinput.cpp
@@ -121,15 +121,15 @@ QT_BEGIN_NAMESPACE
     when the state changes (stateChanged()).
 
     QAudioInput provides several ways of measuring the time that has
-    passed since the start() of the recording. The \c totalTime()
+    passed since the start() of the recording. The \c processedUSecs()
     function returns the length of the stream in microseconds written,
     i.e., it leaves out the times the audio input was suspended or idle.
-    The clock() function returns the time elapsed since start() was called regardless of
+    The elapsedUSecs() function returns the time elapsed since start() was called regardless of
     which states the QAudioInput has been in.
 
     If an error should occur, you can fetch its reason with error().
     The possible error reasons are described by the QAudio::Error
-    enum. The QAudioInput will enter the \l{QAudio::}{StopState} when
+    enum. The QAudioInput will enter the \l{QAudio::}{StoppedState} when
     an error is encountered.  Connect to the stateChanged() signal to
     handle the error:
 
@@ -176,37 +176,44 @@ QAudioInput::~QAudioInput()
 }
 
 /*!
-    Uses the \a device as the QIODevice to transfer data.
-    If \a device is null then the class creates an internal QIODevice.
+     Uses the \a device as the QIODevice to transfer data.
+     Passing a QIODevice allows the data to be transfered without any extra code.
+     All that is required is to open the QIODevice.
+
+     \sa QIODevice
+*/
+
+void QAudioInput::start(QIODevice* device)
+{
+    /*
+       -If currently not StoppedState, stop
+       -If previous start was push mode, delete internal QIODevice.
+       -open audio input.
+       If ok, NoError and ActiveState, else OpenError and StoppedState.
+       -emit stateChanged()
+    */
+    d->start(device);
+}
+
+/*!
     Returns a pointer to the QIODevice being used to handle the data
     transfer. This QIODevice can be used to read() audio data
     directly.
-    Passing a QIODevice allows the data to be transfered without any extra code.
-    All that is required is to open the QIODevice.
 
     \sa QIODevice
 */
 
-QIODevice* QAudioInput::start(QIODevice* device)
+QIODevice* QAudioInput::start()
 {
     /*
-    PULL MODE (valid QIODevice)
-    -If currently not StopState, stop
-    -If previous start was push mode, delete internal QIODevice.
-    -open audio input.
-    If ok, NoError and ActiveState, else OpenError and StopState.
-    -emit stateChanged()
-    -return device
-
-    PUSH MODE (device = 0)
-    -If currently not StopState, stop
+    -If currently not StoppedState, stop
     -If no internal QIODevice, create one.
     -open audio input.
-    -If ok, NoError and IdleState, else OpenError and StopState
+    -If ok, NoError and IdleState, else OpenError and StoppedState
     -emit stateChanged()
     -return internal QIODevice
     */
-    return d->start(device);
+    return d->start(0);
 }
 
 /*!
@@ -225,8 +232,8 @@ QAudioFormat QAudioInput::format() const
 void QAudioInput::stop()
 {
     /*
-    -If StopState, return
-    -set to StopState
+    -If StoppedState, return
+    -set to StoppedState
     -detach from audio device
     -emit stateChanged()
     */
@@ -255,7 +262,7 @@ void QAudioInput::suspend()
     /*
     -If not ActiveState|IdleState, return
     -stop processing audio, saving all buffered audio data
-    -set NoError and SuspendState
+    -set NoError and SuspendedState
     -emit stateChanged()
     */
     d->suspend();
@@ -268,7 +275,7 @@ void QAudioInput::suspend()
 void QAudioInput::resume()
 {
     /*
-    -If SuspendState, return
+    -If SuspendedState, return
     -resume audio
     -(PULL MODE): set ActiveState, NoError
     -(PUSH MODE): set IdleState, NoError
@@ -357,9 +364,9 @@ int QAudioInput::notifyInterval() const
     was called in microseconds.
 */
 
-qint64 QAudioInput::totalTime() const
+qint64 QAudioInput::processedUSecs() const
 {
-    return d->totalTime();
+    return d->processedUSecs();
 }
 
 /*!
@@ -367,9 +374,9 @@ qint64 QAudioInput::totalTime() const
     Suspend states.
 */
 
-qint64 QAudioInput::clock() const
+qint64 QAudioInput::elapsedUSecs() const
 {
-    return d->clock();
+    return d->elapsedUSecs();
 }
 
 /*!
diff --git a/src/multimedia/audio/qaudioinput.h b/src/multimedia/audio/qaudioinput.h
index c8094f5..bf93a27 100644
--- a/src/multimedia/audio/qaudioinput.h
+++ b/src/multimedia/audio/qaudioinput.h
@@ -71,7 +71,9 @@ public:
 
     QAudioFormat format() const;
 
-    QIODevice* start(QIODevice *device = 0);
+    void start(QIODevice *device);
+    QIODevice* start();
+
     void stop();
     void reset();
     void suspend();
@@ -86,8 +88,8 @@ public:
     void setNotifyInterval(int milliSeconds);
     int notifyInterval() const;
 
-    qint64 totalTime() const;
-    qint64 clock() const;
+    qint64 processedUSecs() const;
+    qint64 elapsedUSecs() const;
 
     QAudio::Error error() const;
     QAudio::State state() const;
diff --git a/src/multimedia/audio/qaudioinput_alsa_p.cpp b/src/multimedia/audio/qaudioinput_alsa_p.cpp
index 9eb8cfb..8a8f0db 100644
--- a/src/multimedia/audio/qaudioinput_alsa_p.cpp
+++ b/src/multimedia/audio/qaudioinput_alsa_p.cpp
@@ -75,7 +75,7 @@ QAudioInputPrivate::QAudioInputPrivate(const QByteArray &device, const QAudioFor
     intervalTime = 1000;
     audioBuffer = 0;
     errorState = QAudio::NoError;
-    deviceState = QAudio::StopState;
+    deviceState = QAudio::StoppedState;
     audioSource = 0;
     pullMode = true;
     resuming = false;
@@ -206,7 +206,7 @@ int QAudioInputPrivate::setFormat()
 
 QIODevice* QAudioInputPrivate::start(QIODevice* device)
 {
-    if(deviceState != QAudio::StopState)
+    if(deviceState != QAudio::StoppedState)
         close();
 
     if(!pullMode && audioSource) {
@@ -234,10 +234,10 @@ QIODevice* QAudioInputPrivate::start(QIODevice* device)
 
 void QAudioInputPrivate::stop()
 {
-    if(deviceState == QAudio::StopState)
+    if(deviceState == QAudio::StoppedState)
         return;
 
-    deviceState = QAudio::StopState;
+    deviceState = QAudio::StoppedState;
 
     close();
     emit stateChanged(deviceState);
@@ -283,7 +283,7 @@ bool QAudioInputPrivate::open()
     }
     if (( err < 0)||(handle == 0)) {
         errorState = QAudio::OpenError;
-        deviceState = QAudio::StopState;
+        deviceState = QAudio::StoppedState;
         emit stateChanged(deviceState);
         return false;
     }
@@ -367,7 +367,7 @@ bool QAudioInputPrivate::open()
     if( err < 0) {
         qWarning()<<errMessage;
         errorState = QAudio::OpenError;
-        deviceState = QAudio::StopState;
+        deviceState = QAudio::StoppedState;
         emit stateChanged(deviceState);
         return false;
     }
@@ -413,7 +413,7 @@ bool QAudioInputPrivate::open()
 
 void QAudioInputPrivate::close()
 {
-    deviceState = QAudio::StopState;
+    deviceState = QAudio::StoppedState;
     timer->stop();
 
     if ( handle ) {
@@ -490,7 +490,7 @@ qint64 QAudioInputPrivate::read(char* data, qint64 len)
         if(l < 0) {
             close();
             errorState = QAudio::IOError;
-            deviceState = QAudio::StopState;
+            deviceState = QAudio::StoppedState;
             emit stateChanged(deviceState);
         } else if(l == 0) {
             errorState = QAudio::NoError;
@@ -508,7 +508,7 @@ qint64 QAudioInputPrivate::read(char* data, qint64 len)
 
 void QAudioInputPrivate::resume()
 {
-    if(deviceState == QAudio::SuspendState) {
+    if(deviceState == QAudio::SuspendedState) {
         int err = 0;
 
         if(handle) {
@@ -558,7 +558,7 @@ int QAudioInputPrivate::notifyInterval() const
     return intervalTime;
 }
 
-qint64 QAudioInputPrivate::totalTime() const
+qint64 QAudioInputPrivate::processedUSecs() const
 {
     return totalTimeValue;
 }
@@ -567,14 +567,14 @@ void QAudioInputPrivate::suspend()
 {
     if(deviceState == QAudio::ActiveState||resuming) {
         timer->stop();
-        deviceState = QAudio::SuspendState;
+        deviceState = QAudio::SuspendedState;
         emit stateChanged(deviceState);
     }
 }
 
 void QAudioInputPrivate::userFeed()
 {
-    if(deviceState == QAudio::StopState || deviceState == QAudio::SuspendState)
+    if(deviceState == QAudio::StoppedState || deviceState == QAudio::SuspendedState)
         return;
 #ifdef DEBUG_AUDIO
     QTime now(QTime::currentTime());
@@ -606,12 +606,12 @@ bool QAudioInputPrivate::deviceReady()
     return true;
 }
 
-qint64 QAudioInputPrivate::clock() const
+qint64 QAudioInputPrivate::elapsedUSecs() const
 {
     if(!handle)
         return 0;
 
-    if (deviceState == QAudio::StopState)
+    if (deviceState == QAudio::StoppedState)
         return 0;
 
 #if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14) 
diff --git a/src/multimedia/audio/qaudioinput_alsa_p.h b/src/multimedia/audio/qaudioinput_alsa_p.h
index 2ed7453..67d5cf5 100644
--- a/src/multimedia/audio/qaudioinput_alsa_p.h
+++ b/src/multimedia/audio/qaudioinput_alsa_p.h
@@ -91,8 +91,8 @@ public:
     int bufferSize() const;
     void setNotifyInterval(int milliSeconds);
     int notifyInterval() const;
-    qint64 totalTime() const;
-    qint64 clock() const;
+    qint64 processedUSecs() const;
+    qint64 elapsedUSecs() const;
     QAudio::Error error() const;
     QAudio::State state() const;
     QAudioFormat format() const;
diff --git a/src/multimedia/audio/qaudioinput_mac_p.cpp b/src/multimedia/audio/qaudioinput_mac_p.cpp
index cb05920..d63045f 100644
--- a/src/multimedia/audio/qaudioinput_mac_p.cpp
+++ b/src/multimedia/audio/qaudioinput_mac_p.cpp
@@ -526,7 +526,7 @@ QAudioInputPrivate::QAudioInputPrivate(const QByteArray& device, QAudioFormat co
         internalBufferSize = default_buffer_size;
         clockFrequency = AudioGetHostClockFrequency() / 1000;
         errorCode = QAudio::NoError;
-        stateCode = QAudio::StopState;
+        stateCode = QAudio::StoppedState;
 
         intervalTimer = new QTimer(this);
         intervalTimer->setInterval(1000);
@@ -708,7 +708,7 @@ QIODevice* QAudioInputPrivate::start(QIODevice* device)
     QIODevice*  op = device;
 
     if (!open()) {
-        stateCode = QAudio::StopState;
+        stateCode = QAudio::StoppedState;
         errorCode = QAudio::OpenError;
         return audioIO;
     }
@@ -736,12 +736,12 @@ QIODevice* QAudioInputPrivate::start(QIODevice* device)
 void QAudioInputPrivate::stop()
 {
     QMutexLocker    lock(&mutex);
-    if (stateCode != QAudio::StopState) {
+    if (stateCode != QAudio::StoppedState) {
         audioThreadStop();
         audioBuffer->flush(true);
 
         errorCode = QAudio::NoError;
-        stateCode = QAudio::StopState;
+        stateCode = QAudio::StoppedState;
         QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
     }
 }
@@ -749,11 +749,11 @@ void QAudioInputPrivate::stop()
 void QAudioInputPrivate::reset()
 {
     QMutexLocker    lock(&mutex);
-    if (stateCode != QAudio::StopState) {
+    if (stateCode != QAudio::StoppedState) {
         audioThreadStop();
 
         errorCode = QAudio::NoError;
-        stateCode = QAudio::StopState;
+        stateCode = QAudio::StoppedState;
         QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
     }
 }
@@ -765,7 +765,7 @@ void QAudioInputPrivate::suspend()
         audioThreadStop();
 
         errorCode = QAudio::NoError;
-        stateCode = QAudio::SuspendState;
+        stateCode = QAudio::SuspendedState;
         QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
     }
 }
@@ -773,7 +773,7 @@ void QAudioInputPrivate::suspend()
 void QAudioInputPrivate::resume()
 {
     QMutexLocker    lock(&mutex);
-    if (stateCode == QAudio::SuspendState) {
+    if (stateCode == QAudio::SuspendedState) {
         audioThreadStart();
 
         errorCode = QAudio::NoError;
@@ -812,14 +812,14 @@ int QAudioInputPrivate::notifyInterval() const
     return intervalTimer->interval();
 }
 
-qint64 QAudioInputPrivate::totalTime() const
+qint64 QAudioInputPrivate::processedUSecs() const
 {
     return totalFrames * 1000000 / audioFormat.frequency();
 }
 
-qint64 QAudioInputPrivate::clock() const
+qint64 QAudioInputPrivate::elapsedUSecs() const
 {
-    if (stateCode == QAudio::StopState)
+    if (stateCode == QAudio::StoppedState)
         return 0;
 
     return (AudioGetCurrentHostTime() - startTime) / (clockFrequency / 1000);
@@ -875,7 +875,7 @@ void QAudioInputPrivate::audioDeviceError()
         audioDeviceStop();
 
         errorCode = QAudio::IOError;
-        stateCode = QAudio::StopState;
+        stateCode = QAudio::StoppedState;
         QMetaObject::invokeMethod(this, "deviceStopped", Qt::QueuedConnection);
     }
 }
diff --git a/src/multimedia/audio/qaudioinput_mac_p.h b/src/multimedia/audio/qaudioinput_mac_p.h
index a080648..2dbb808 100644
--- a/src/multimedia/audio/qaudioinput_mac_p.h
+++ b/src/multimedia/audio/qaudioinput_mac_p.h
@@ -129,8 +129,8 @@ public:
     void setNotifyInterval(int milliSeconds);
     int notifyInterval() const;
 
-    qint64 totalTime() const;
-    qint64 clock() const;
+    qint64 processedUSecs() const;
+    qint64 elapsedUSecs() const;
 
     QAudio::Error error() const;
     QAudio::State state() const;
diff --git a/src/multimedia/audio/qaudioinput_win32_p.cpp b/src/multimedia/audio/qaudioinput_win32_p.cpp
index a059e76..31f6e25 100644
--- a/src/multimedia/audio/qaudioinput_win32_p.cpp
+++ b/src/multimedia/audio/qaudioinput_win32_p.cpp
@@ -71,7 +71,7 @@ QAudioInputPrivate::QAudioInputPrivate(const QByteArray &device, const QAudioFor
     totalTimeValue = 0;
     intervalTime = 1000;
     errorState = QAudio::NoError;
-    deviceState = QAudio::StopState;
+    deviceState = QAudio::StoppedState;
     audioSource = 0;
     pullMode = true;
     resuming = false;
@@ -173,7 +173,7 @@ QAudioFormat QAudioInputPrivate::format() const
 
 QIODevice* QAudioInputPrivate::start(QIODevice* device)
 {
-    if(deviceState != QAudio::StopState)
+    if(deviceState != QAudio::StoppedState)
         close();
 
     if(!pullMode && audioSource) {
@@ -201,7 +201,7 @@ QIODevice* QAudioInputPrivate::start(QIODevice* device)
 
 void QAudioInputPrivate::stop()
 {
-    if(deviceState == QAudio::StopState)
+    if(deviceState == QAudio::StoppedState)
         return;
 
     close();
@@ -260,7 +260,7 @@ bool QAudioInputPrivate::open()
                 (DWORD_PTR) this,
                 CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
         errorState = QAudio::OpenError;
-        deviceState = QAudio::StopState;
+        deviceState = QAudio::StoppedState;
         emit stateChanged(deviceState);
         qWarning("QAudioInput: failed to open audio device");
         return false;
@@ -269,7 +269,7 @@ bool QAudioInputPrivate::open()
 
     if(waveBlocks == 0) {
         errorState = QAudio::OpenError;
-        deviceState = QAudio::StopState;
+        deviceState = QAudio::StoppedState;
         emit stateChanged(deviceState);
         qWarning("QAudioInput: failed to allocate blocks. open failed");
         return false;
@@ -286,7 +286,7 @@ bool QAudioInputPrivate::open()
         if(result != MMSYSERR_NOERROR) {
             qWarning("QAudioInput: failed to setup block %d,err=%d",i,result);
             errorState = QAudio::OpenError;
-            deviceState = QAudio::StopState;
+            deviceState = QAudio::StoppedState;
             emit stateChanged(deviceState);
             return false;
         }
@@ -295,7 +295,7 @@ bool QAudioInputPrivate::open()
     if(result) {
         qWarning("QAudioInput: failed to start audio input");
         errorState = QAudio::OpenError;
-        deviceState = QAudio::StopState;
+        deviceState = QAudio::StoppedState;
         emit stateChanged(deviceState);
         return false;
     }
@@ -309,12 +309,12 @@ bool QAudioInputPrivate::open()
 
 void QAudioInputPrivate::close()
 {
-    if(deviceState == QAudio::StopState)
+    if(deviceState == QAudio::StoppedState)
         return;
 
     waveInReset(hWaveIn);
     waveInClose(hWaveIn);
-    deviceState = QAudio::StopState;
+    deviceState = QAudio::StoppedState;
 
     int count = 0;
     while(!finished && count < 100) {
@@ -400,14 +400,14 @@ qint64 QAudioInputPrivate::read(char* data, qint64 len)
         if(result != MMSYSERR_NOERROR) {
             qWarning("QAudioInput: failed to prepare block %d,err=%d",header,result);
             errorState = QAudio::OpenError;
-            deviceState = QAudio::StopState;
+            deviceState = QAudio::StoppedState;
             emit stateChanged(deviceState);
         }
         result = waveInAddBuffer(hWaveIn, &waveBlocks[header], sizeof(WAVEHDR));
         if(result != MMSYSERR_NOERROR) {
             qWarning("QAudioInput: failed to setup block %d,err=%d",header,result);
             errorState = QAudio::OpenError;
-            deviceState = QAudio::StopState;
+            deviceState = QAudio::StoppedState;
             emit stateChanged(deviceState);
         }
         header++;
@@ -435,14 +435,14 @@ qint64 QAudioInputPrivate::read(char* data, qint64 len)
 
 void QAudioInputPrivate::resume()
 {
-    if(deviceState == QAudio::SuspendState) {
+    if(deviceState == QAudio::SuspendedState) {
         deviceState = QAudio::ActiveState;
         for(int i=0; i<buffer_size/period_size; i++) {
             result = waveInAddBuffer(hWaveIn, &waveBlocks[i], sizeof(WAVEHDR));
             if(result != MMSYSERR_NOERROR) {
                 qWarning("QAudioInput: failed to setup block %d,err=%d",i,result);
                 errorState = QAudio::OpenError;
-                deviceState = QAudio::StopState;
+                deviceState = QAudio::StoppedState;
                 emit stateChanged(deviceState);
                 return;
             }
@@ -488,7 +488,7 @@ int QAudioInputPrivate::notifyInterval() const
     return intervalTime;
 }
 
-qint64 QAudioInputPrivate::totalTime() const
+qint64 QAudioInputPrivate::processedUSecs() const
 {
     return totalTimeValue;
 }
@@ -497,7 +497,7 @@ void QAudioInputPrivate::suspend()
 {
     if(deviceState == QAudio::ActiveState) {
         waveInReset(hWaveIn);
-        deviceState = QAudio::SuspendState;
+        deviceState = QAudio::SuspendedState;
         emit stateChanged(deviceState);
     }
 }
@@ -510,7 +510,7 @@ void QAudioInputPrivate::feedback()
 #endif
     bytesAvailable = bytesReady();
 
-    if(!(deviceState==QAudio::StopState||deviceState==QAudio::SuspendState))
+    if(!(deviceState==QAudio::StoppedState||deviceState==QAudio::SuspendedState))
         emit processMore();
 }
 
@@ -539,9 +539,9 @@ bool QAudioInputPrivate::deviceReady()
     return true;
 }
 
-qint64 QAudioInputPrivate::clock() const
+qint64 QAudioInputPrivate::elapsedUSecs() const
 {
-    if (deviceState == QAudio::StopState)
+    if (deviceState == QAudio::StoppedState)
         return 0;
 
     return timeStampOpened.elapsed()*1000;
diff --git a/src/multimedia/audio/qaudioinput_win32_p.h b/src/multimedia/audio/qaudioinput_win32_p.h
index 26c470d..a2bd687 100644
--- a/src/multimedia/audio/qaudioinput_win32_p.h
+++ b/src/multimedia/audio/qaudioinput_win32_p.h
@@ -91,8 +91,8 @@ public:
     int bufferSize() const;
     void setNotifyInterval(int milliSeconds);
     int notifyInterval() const;
-    qint64 totalTime() const;
-    qint64 clock() const;
+    qint64 processedUSecs() const;
+    qint64 elapsedUSecs() const;
     QAudio::Error error() const;
     QAudio::State state() const;
 
diff --git a/src/multimedia/audio/qaudiooutput.cpp b/src/multimedia/audio/qaudiooutput.cpp
index 81b9496..f8f2fa1 100644
--- a/src/multimedia/audio/qaudiooutput.cpp
+++ b/src/multimedia/audio/qaudiooutput.cpp
@@ -125,12 +125,12 @@ QT_BEGIN_NAMESPACE
     not emitted. A typical use-case would be to update a
     \l{QSlider}{slider} that allows seeking in the stream.
     If you want the time since playback started regardless of which
-    states the audio output has been in, clock() is the function for you.
+    states the audio output has been in, elapsedUSecs() is the function for you.
 
     If an error occurs, you can fetch the \l{QAudio::Error}{error
     type} with the error() function. Please see the QAudio::Error enum
     for a description of the possible errors that are reported.  When
-    an error is encountered, the state changes to QAudio::StopState.
+    an error is encountered, the state changes to QAudio::StoppedState.
     You can check for errors by connecting to the stateChanged()
     signal:
 
@@ -188,36 +188,42 @@ QAudioFormat QAudioOutput::format() const
 
 /*!
     Uses the \a device as the QIODevice to transfer data.
-    If \a device is null then the class creates an internal QIODevice.
-    Returns a pointer to the QIODevice being used to handle the data
-    transfer. This QIODevice can be used to write() audio data
-    directly.
     Passing a QIODevice allows the data to be transfered without any extra code.
     All that is required is to open the QIODevice.
 
     \sa QIODevice
 */
 
-QIODevice* QAudioOutput::start(QIODevice* device)
+void QAudioOutput::start(QIODevice* device)
 {
     /*
-    PULL MODE (valid QIODevice)
-    -If currently not StopState, stop.
+    -If currently not StoppedState, stop.
     -If previous start was push mode, delete internal QIODevice.
     -open audio output.
-    -If ok, NoError and ActiveState, else OpenError and StopState
+    -If ok, NoError and ActiveState, else OpenError and StoppedState
     -emit stateChanged()
-    -return device
+    */
+    d->start(device);
+}
+
+/*!
+    Returns a pointer to the QIODevice being used to handle the data
+    transfer. This QIODevice can be used to write() audio data directly.
 
-    PUSH MODE (device = 0)
-    -If currently not StopState, stop.
+    \sa QIODevice
+*/
+
+QIODevice* QAudioOutput::start()
+{
+    /*
+    -If currently not StoppedState, stop.
     -If no internal QIODevice, create one.
     -open audio output.
-    -If ok, NoError and IdleState, else OpenError and StopState
+    -If ok, NoError and IdleState, else OpenError and StoppedState
     -emit stateChanged()
     -return internal QIODevice
     */
-    return d->start(device);
+    return d->start(0);
 }
 
 /*!
@@ -227,8 +233,8 @@ QIODevice* QAudioOutput::start(QIODevice* device)
 void QAudioOutput::stop()
 {
     /*
-    -If StopState, return
-    -set to StopState
+    -If StoppedState, return
+    -set to StoppedState
     -detach from audio device
     -emit stateChanged()
     */
@@ -257,7 +263,7 @@ void QAudioOutput::suspend()
     /*
     -If not ActiveState|IdleState, return
     -stop processing audio, saving all buffered audio data
-    -set NoError and SuspendState
+    -set NoError and SuspendedState
     -emit stateChanged()
     */
     d->suspend();
@@ -270,7 +276,7 @@ void QAudioOutput::suspend()
 void QAudioOutput::resume()
 {
     /*
-    -If SuspendState, return
+    -If SuspendedState, return
     -resume audio
     -(PULL MODE): set ActiveState, NoError
     -(PUSH MODE): set IdleState, NoError
@@ -358,9 +364,9 @@ int QAudioOutput::notifyInterval() const
     was called in microseconds.
 */
 
-qint64 QAudioOutput::totalTime() const
+qint64 QAudioOutput::processedUSecs() const
 {
-    return d->totalTime();
+    return d->processedUSecs();
 }
 
 /*!
@@ -368,9 +374,9 @@ qint64 QAudioOutput::totalTime() const
     Suspend states.
 */
 
-qint64 QAudioOutput::clock() const
+qint64 QAudioOutput::elapsedUSecs() const
 {
-    return d->clock();
+    return d->elapsedUSecs();
 }
 
 /*!
diff --git a/src/multimedia/audio/qaudiooutput.h b/src/multimedia/audio/qaudiooutput.h
index bb3496e..38bab8e 100644
--- a/src/multimedia/audio/qaudiooutput.h
+++ b/src/multimedia/audio/qaudiooutput.h
@@ -71,7 +71,9 @@ public:
 
     QAudioFormat format() const;
 
-    QIODevice* start(QIODevice *device = 0);
+    void start(QIODevice *device);
+    QIODevice* start();
+
     void stop();
     void reset();
     void suspend();
@@ -86,8 +88,8 @@ public:
     void setNotifyInterval(int milliSeconds);
     int notifyInterval() const;
 
-    qint64 totalTime() const;
-    qint64 clock() const;
+    qint64 processedUSecs() const;
+    qint64 elapsedUSecs() const;
 
     QAudio::Error error() const;
     QAudio::State state() const;
diff --git a/src/multimedia/audio/qaudiooutput_alsa_p.cpp b/src/multimedia/audio/qaudiooutput_alsa_p.cpp
index 689da89..e9784d2 100644
--- a/src/multimedia/audio/qaudiooutput_alsa_p.cpp
+++ b/src/multimedia/audio/qaudiooutput_alsa_p.cpp
@@ -77,7 +77,7 @@ QAudioOutputPrivate::QAudioOutputPrivate(const QByteArray &device, const QAudioF
     intervalTime = 1000;
     audioBuffer = 0;
     errorState = QAudio::NoError;
-    deviceState = QAudio::StopState;
+    deviceState = QAudio::StoppedState;
     audioSource = 0;
     pullMode = true;
     resuming = false;
@@ -215,8 +215,8 @@ int QAudioOutputPrivate::setFormat()
 
 QIODevice* QAudioOutputPrivate::start(QIODevice* device)
 {
-    if(deviceState != QAudio::StopState)
-        deviceState = QAudio::StopState;
+    if(deviceState != QAudio::StoppedState)
+        deviceState = QAudio::StoppedState;
 
     errorState = QAudio::NoError;
 
@@ -256,9 +256,9 @@ QIODevice* QAudioOutputPrivate::start(QIODevice* device)
 
 void QAudioOutputPrivate::stop()
 {
-    if(deviceState == QAudio::StopState)
+    if(deviceState == QAudio::StoppedState)
         return;
-    deviceState = QAudio::StopState;
+    deviceState = QAudio::StoppedState;
     close();
     emit stateChanged(deviceState);
 }
@@ -304,7 +304,7 @@ bool QAudioOutputPrivate::open()
     }
     if (( err < 0)||(handle == 0)) {
         errorState = QAudio::OpenError;
-        deviceState = QAudio::StopState;
+        deviceState = QAudio::StoppedState;
         return false;
     }
     snd_pcm_nonblock( handle, 0 );
@@ -387,7 +387,7 @@ bool QAudioOutputPrivate::open()
     if( err < 0) {
         qWarning()<<errMessage;
         errorState = QAudio::OpenError;
-        deviceState = QAudio::StopState;
+        deviceState = QAudio::StoppedState;
         return false;
     }
     snd_pcm_hw_params_get_buffer_size(hwparams,&buffer_frames);
@@ -431,7 +431,7 @@ bool QAudioOutputPrivate::open()
 
 void QAudioOutputPrivate::close()
 {
-    deviceState = QAudio::StopState;
+    deviceState = QAudio::StoppedState;
     timer->stop();
 
     if ( handle ) {
@@ -494,7 +494,7 @@ qint64 QAudioOutputPrivate::write( const char *data, qint64 len )
     if(err < 0) {
         close();
         errorState = QAudio::FatalError;
-        deviceState = QAudio::StopState;
+        deviceState = QAudio::StoppedState;
         emit stateChanged(deviceState);
     }
     return 0;
@@ -507,7 +507,7 @@ int QAudioOutputPrivate::periodSize() const
 
 void QAudioOutputPrivate::setBufferSize(int value)
 {
-    if(deviceState == QAudio::StopState)
+    if(deviceState == QAudio::StoppedState)
         buffer_size = value;
 }
 
@@ -529,14 +529,14 @@ int QAudioOutputPrivate::notifyInterval() const
     return intervalTime;
 }
 
-qint64 QAudioOutputPrivate::totalTime() const
+qint64 QAudioOutputPrivate::processedUSecs() const
 {
     return totalTimeValue;
 }
 
 void QAudioOutputPrivate::resume()
 {
-    if(deviceState == QAudio::SuspendState) {
+    if(deviceState == QAudio::SuspendedState) {
         int err = 0;
 
         if(handle) {
@@ -571,7 +571,7 @@ void QAudioOutputPrivate::suspend()
 {
     if(deviceState == QAudio::ActiveState || deviceState == QAudio::IdleState || resuming) {
         timer->stop();
-        deviceState = QAudio::SuspendState;
+        deviceState = QAudio::SuspendedState;
         errorState = QAudio::NoError;
         emit stateChanged(deviceState);
     }
@@ -579,7 +579,7 @@ void QAudioOutputPrivate::suspend()
 
 void QAudioOutputPrivate::userFeed()
 {
-    if(deviceState == QAudio::StopState || deviceState == QAudio::SuspendState)
+    if(deviceState == QAudio::StoppedState || deviceState == QAudio::SuspendedState)
         return;
 #ifdef DEBUG_AUDIO
     QTime now(QTime::currentTime());
@@ -658,12 +658,12 @@ bool QAudioOutputPrivate::deviceReady()
     return true;
 }
 
-qint64 QAudioOutputPrivate::clock() const
+qint64 QAudioOutputPrivate::elapsedUSecs() const
 {
     if(!handle)
         return 0;
 
-    if (deviceState == QAudio::StopState)
+    if (deviceState == QAudio::StoppedState)
         return 0;
 
 #if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14) 
diff --git a/src/multimedia/audio/qaudiooutput_alsa_p.h b/src/multimedia/audio/qaudiooutput_alsa_p.h
index 298e89e..619ecef 100644
--- a/src/multimedia/audio/qaudiooutput_alsa_p.h
+++ b/src/multimedia/audio/qaudiooutput_alsa_p.h
@@ -91,8 +91,8 @@ public:
     int bufferSize() const;
     void setNotifyInterval(int milliSeconds);
     int notifyInterval() const;
-    qint64 totalTime() const;
-    qint64 clock() const;
+    qint64 processedUSecs() const;
+    qint64 elapsedUSecs() const;
     QAudio::Error error() const;
     QAudio::State state() const;
     QAudioFormat format() const;
diff --git a/src/multimedia/audio/qaudiooutput_mac_p.cpp b/src/multimedia/audio/qaudiooutput_mac_p.cpp
index f23db80..e0651bf 100644
--- a/src/multimedia/audio/qaudiooutput_mac_p.cpp
+++ b/src/multimedia/audio/qaudiooutput_mac_p.cpp
@@ -288,7 +288,7 @@ QAudioOutputPrivate::QAudioOutputPrivate(const QByteArray& device, const QAudioF
         internalBufferSize = default_buffer_size;
         clockFrequency = AudioGetHostClockFrequency() / 1000;
         errorCode = QAudio::NoError;
-        stateCode = QAudio::StopState;
+        stateCode = QAudio::StoppedState;
         audioThreadState = Stopped;
 
         intervalTimer = new QTimer(this);
@@ -436,7 +436,7 @@ QIODevice* QAudioOutputPrivate::start(QIODevice* device)
     QIODevice*  op = device;
 
     if (!open()) {
-        stateCode = QAudio::StopState;
+        stateCode = QAudio::StoppedState;
         errorCode = QAudio::OpenError;
         return audioIO;
     }
@@ -468,10 +468,10 @@ QIODevice* QAudioOutputPrivate::start(QIODevice* device)
 void QAudioOutputPrivate::stop()
 {
     QMutexLocker    lock(&mutex);
-    if (stateCode != QAudio::StopState) {
+    if (stateCode != QAudio::StoppedState) {
         audioThreadDrain();
 
-        stateCode = QAudio::StopState;
+        stateCode = QAudio::StoppedState;
         errorCode = QAudio::NoError;
         QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
     }
@@ -480,10 +480,10 @@ void QAudioOutputPrivate::stop()
 void QAudioOutputPrivate::reset()
 {
     QMutexLocker    lock(&mutex);
-    if (stateCode != QAudio::StopState) {
+    if (stateCode != QAudio::StoppedState) {
         audioThreadStop();
 
-        stateCode = QAudio::StopState;
+        stateCode = QAudio::StoppedState;
         errorCode = QAudio::NoError;
         QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
     }
@@ -495,7 +495,7 @@ void QAudioOutputPrivate::suspend()
     if (stateCode == QAudio::ActiveState || stateCode == QAudio::IdleState) {
         audioThreadStop();
 
-        stateCode = QAudio::SuspendState;
+        stateCode = QAudio::SuspendedState;
         errorCode = QAudio::NoError;
         QMetaObject::invokeMethod(this, "stateChanged", Qt::QueuedConnection, Q_ARG(QAudio::State, stateCode));
     }
@@ -504,7 +504,7 @@ void QAudioOutputPrivate::suspend()
 void QAudioOutputPrivate::resume()
 {
     QMutexLocker    lock(&mutex);
-    if (stateCode == QAudio::SuspendState) {
+    if (stateCode == QAudio::SuspendedState) {
         audioThreadStart();
 
         stateCode = QAudio::ActiveState;
@@ -525,7 +525,7 @@ int QAudioOutputPrivate::periodSize() const
 
 void QAudioOutputPrivate::setBufferSize(int bs)
 {
-    if (stateCode == QAudio::StopState)
+    if (stateCode == QAudio::StoppedState)
         internalBufferSize = bs;
 }
 
@@ -544,14 +544,14 @@ int QAudioOutputPrivate::notifyInterval() const
     return intervalTimer->interval();
 }
 
-qint64 QAudioOutputPrivate::totalTime() const
+qint64 QAudioOutputPrivate::processedUSecs() const
 {
     return totalFrames * 1000000 / audioFormat.frequency();
 }
 
-qint64 QAudioOutputPrivate::clock() const
+qint64 QAudioOutputPrivate::elapsedUSecs() const
 {
-    if (stateCode == QAudio::StopState)
+    if (stateCode == QAudio::StoppedState)
         return 0;
 
     return (AudioGetCurrentHostTime() - startTime) / (clockFrequency / 1000);
@@ -614,7 +614,7 @@ void QAudioOutputPrivate::audioDeviceError()
         audioDeviceStop();
 
         errorCode = QAudio::IOError;
-        stateCode = QAudio::StopState;
+        stateCode = QAudio::StoppedState;
         QMetaObject::invokeMethod(this, "deviceStopped", Qt::QueuedConnection);
     }
 }
diff --git a/src/multimedia/audio/qaudiooutput_mac_p.h b/src/multimedia/audio/qaudiooutput_mac_p.h
index 04b3239..76d06a9 100644
--- a/src/multimedia/audio/qaudiooutput_mac_p.h
+++ b/src/multimedia/audio/qaudiooutput_mac_p.h
@@ -128,8 +128,8 @@ public:
     void setNotifyInterval(int milliSeconds);
     int notifyInterval() const;
 
-    qint64 totalTime() const;
-    qint64 clock() const;
+    qint64 processedUSecs() const;
+    qint64 elapsedUSecs() const;
 
     QAudio::Error error() const;
     QAudio::State state() const;
diff --git a/src/multimedia/audio/qaudiooutput_win32_p.cpp b/src/multimedia/audio/qaudiooutput_win32_p.cpp
index 1810ed2..2cfc472 100644
--- a/src/multimedia/audio/qaudiooutput_win32_p.cpp
+++ b/src/multimedia/audio/qaudiooutput_win32_p.cpp
@@ -71,7 +71,7 @@ QAudioOutputPrivate::QAudioOutputPrivate(const QByteArray &device, const QAudioF
     intervalTime = 1000;
     audioBuffer = 0;
     errorState = QAudio::NoError;
-    deviceState = QAudio::StopState;
+    deviceState = QAudio::StoppedState;
     audioSource = 0;
     pullMode = true;
     finished = false;
@@ -157,7 +157,7 @@ QAudioFormat QAudioOutputPrivate::format() const
 
 QIODevice* QAudioOutputPrivate::start(QIODevice* device)
 {
-    if(deviceState != QAudio::StopState)
+    if(deviceState != QAudio::StoppedState)
         close();
 
     if(!pullMode && audioSource) {
@@ -187,7 +187,7 @@ QIODevice* QAudioOutputPrivate::start(QIODevice* device)
 
 void QAudioOutputPrivate::stop()
 {
-    if(deviceState == QAudio::StopState)
+    if(deviceState == QAudio::StoppedState)
         return;
     close();
     if(!pullMode && audioSource) {
@@ -255,7 +255,7 @@ bool QAudioOutputPrivate::open()
                 (DWORD_PTR) this,
                 CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
         errorState = QAudio::OpenError;
-        deviceState = QAudio::StopState;
+        deviceState = QAudio::StoppedState;
         emit stateChanged(deviceState);
         qWarning("QAudioOutput: open error");
         return false;
@@ -277,10 +277,10 @@ bool QAudioOutputPrivate::open()
 
 void QAudioOutputPrivate::close()
 {
-    if(deviceState == QAudio::StopState)
+    if(deviceState == QAudio::StoppedState)
         return;
 
-    deviceState = QAudio::StopState;
+    deviceState = QAudio::StoppedState;
     int delay = (buffer_size-bytesFree())*1000/(settings.frequency()
                   *settings.channels()*(settings.sampleSize()/8));
     waveOutReset(hWaveOut);
@@ -308,7 +308,7 @@ int QAudioOutputPrivate::periodSize() const
 
 void QAudioOutputPrivate::setBufferSize(int value)
 {
-    if(deviceState == QAudio::StopState)
+    if(deviceState == QAudio::StoppedState)
         buffer_size = value;
 }
 
@@ -330,7 +330,7 @@ int QAudioOutputPrivate::notifyInterval() const
     return intervalTime;
 }
 
-qint64 QAudioOutputPrivate::totalTime() const
+qint64 QAudioOutputPrivate::processedUSecs() const
 {
     return totalTimeValue;
 }
@@ -390,7 +390,7 @@ qint64 QAudioOutputPrivate::write( const char *data, qint64 len )
 
 void QAudioOutputPrivate::resume()
 {
-    if(deviceState == QAudio::SuspendState) {
+    if(deviceState == QAudio::SuspendedState) {
         deviceState = QAudio::ActiveState;
         errorState = QAudio::NoError;
         waveOutRestart(hWaveOut);
@@ -403,7 +403,7 @@ void QAudioOutputPrivate::suspend()
 {
     if(deviceState == QAudio::ActiveState) {
         waveOutPause(hWaveOut);
-        deviceState = QAudio::SuspendState;
+        deviceState = QAudio::SuspendedState;
         errorState = QAudio::NoError;
         emit stateChanged(deviceState);
     }
@@ -417,7 +417,7 @@ void QAudioOutputPrivate::feedback()
 #endif
     bytesAvailable = bytesFree();
 
-    if(!(deviceState==QAudio::StopState||deviceState==QAudio::SuspendState)) {
+    if(!(deviceState==QAudio::StoppedState||deviceState==QAudio::SuspendedState)) {
         if(bytesAvailable >= period_size)
             QMetaObject::invokeMethod(this, "deviceReady", Qt::QueuedConnection);
     }
@@ -491,9 +491,9 @@ bool QAudioOutputPrivate::deviceReady()
     return true;
 }
 
-qint64 QAudioOutputPrivate::clock() const
+qint64 QAudioOutputPrivate::elapsedUSecs() const
 {
-    if (deviceState == QAudio::StopState)
+    if (deviceState == QAudio::StoppedState)
         return 0;
 
     return timeStampOpened.elapsed()*1000;
diff --git a/src/multimedia/audio/qaudiooutput_win32_p.h b/src/multimedia/audio/qaudiooutput_win32_p.h
index bcf8e1e..f90b8c2 100644
--- a/src/multimedia/audio/qaudiooutput_win32_p.h
+++ b/src/multimedia/audio/qaudiooutput_win32_p.h
@@ -90,8 +90,8 @@ public:
     int bufferSize() const;
     void setNotifyInterval(int milliSeconds);
     int notifyInterval() const;
-    qint64 totalTime() const;
-    qint64 clock() const;
+    qint64 processedUSecs() const;
+    qint64 elapsedUSecs() const;
     QAudio::Error error() const;
     QAudio::State state() const;
 
diff --git a/tests/auto/qaudiodeviceinfo/tst_qaudiodeviceinfo.cpp b/tests/auto/qaudiodeviceinfo/tst_qaudiodeviceinfo.cpp
index 7b9a422..715f219 100644
--- a/tests/auto/qaudiodeviceinfo/tst_qaudiodeviceinfo.cpp
+++ b/tests/auto/qaudiodeviceinfo/tst_qaudiodeviceinfo.cpp
@@ -77,7 +77,7 @@ private:
 void tst_QAudioDeviceInfo::initTestCase()
 {
     // Only perform tests if audio output device exists!
-    QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::deviceList(QAudio::AudioOutput);
+    QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::availableDevices(QAudio::AudioOutput);
     if(devices.size() > 0)
         available = true;
     else {
@@ -90,7 +90,7 @@ void tst_QAudioDeviceInfo::checkAvailableDefaultInput()
 {
     // Only perform tests if audio input device exists!
     bool storeAvailable = available;
-    QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::deviceList(QAudio::AudioInput);
+    QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::availableDevices(QAudio::AudioInput);
     if(devices.size() > 0)
         available = true;
     else {
@@ -111,7 +111,7 @@ void tst_QAudioDeviceInfo::checkAvailableDefaultOutput()
 void tst_QAudioDeviceInfo::outputList()
 {
     if(available) {
-        QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::deviceList(QAudio::AudioOutput);
+        QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::availableDevices(QAudio::AudioOutput);
         QVERIFY(devices.size() > 0);
         device = new QAudioDeviceInfo(devices.at(0));
     }
diff --git a/tests/auto/qaudioformat/tst_qaudioformat.cpp b/tests/auto/qaudioformat/tst_qaudioformat.cpp
index 286e63f..0778a8e 100644
--- a/tests/auto/qaudioformat/tst_qaudioformat.cpp
+++ b/tests/auto/qaudioformat/tst_qaudioformat.cpp
@@ -69,17 +69,20 @@ private slots:
 
 void tst_QAudioFormat::checkNull()
 {
-    // Default constructed QAudioFormat is null.
+    // Default constructed QAudioFormat is invalid.
     QAudioFormat    audioFormat0;
-    QVERIFY(audioFormat0.isNull());
+    QVERIFY(!audioFormat0.isValid());
 
-    // Null is transferred
+    // validity is transferred
     QAudioFormat    audioFormat1(audioFormat0);
-    QVERIFY(audioFormat1.isNull());
+    QVERIFY(!audioFormat1.isValid());
 
-    // Null is voided on activity
     audioFormat0.setFrequency(44100);
-    QVERIFY(!audioFormat0.isNull());
+    audioFormat0.setChannels(2);
+    audioFormat0.setSampleSize(16);
+    audioFormat0.setCodec("audio/pcm");
+    audioFormat0.setSampleType(QAudioFormat::SignedInt);
+    QVERIFY(audioFormat0.isValid());
 }
 
 void tst_QAudioFormat::checkFrequency()
diff --git a/tests/auto/qaudioinput/tst_qaudioinput.cpp b/tests/auto/qaudioinput/tst_qaudioinput.cpp
index 3efc346..744ce38 100644
--- a/tests/auto/qaudioinput/tst_qaudioinput.cpp
+++ b/tests/auto/qaudioinput/tst_qaudioinput.cpp
@@ -76,7 +76,7 @@ void tst_QAudioInput::initTestCase()
     format.setSampleType(QAudioFormat::UnSignedInt);
 
     // Only perform tests if audio input device exists!
-    QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::deviceList(QAudio::AudioInput);
+    QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::availableDevices(QAudio::AudioInput);
     if(devices.size() > 0)
         available = true;
     else {
@@ -137,16 +137,16 @@ void tst_QAudioInput::pullFile()
         QSignalSpy stateSignal(audio, SIGNAL(stateChanged(QAudio::State)));
 
         // Always have default states, before start
-        QVERIFY(audio->state() == QAudio::StopState);
+        QVERIFY(audio->state() == QAudio::StoppedState);
         QVERIFY(audio->error() == QAudio::NoError);
-        QVERIFY(audio->clock() == 0);
+        QVERIFY(audio->elapsedUSecs() == 0);
 
         audio->start(&filename);
         QTest::qWait(20);
         // Check state and periodSize() are valid non-zero values.
         QVERIFY(audio->state() == QAudio::ActiveState);
         QVERIFY(audio->error() == QAudio::NoError);
-        QVERIFY(audio->clock() > 10000 && audio->clock() < 800000);
+        QVERIFY(audio->elapsedUSecs() > 10000 && audio->elapsedUSecs() < 800000);
         QVERIFY(audio->periodSize() > 0);
         QVERIFY(stateSignal.count() == 1); // State changed to QAudio::ActiveState
 
@@ -154,12 +154,12 @@ void tst_QAudioInput::pullFile()
         QTest::qWait(5000);
 
         QVERIFY(readSignal.count() > 0);
-        QVERIFY(audio->totalTime() > 0);
+        QVERIFY(audio->processedUSecs() > 0);
 
         audio->stop();
         QTest::qWait(20);
-        QVERIFY(audio->state() == QAudio::StopState);
-        QVERIFY(audio->clock() == 0);
+        QVERIFY(audio->state() == QAudio::StoppedState);
+        QVERIFY(audio->elapsedUSecs() == 0);
         // Can only check to make sure we got at least 1 more signal, but can be more.
         QVERIFY(stateSignal.count() > 1);
 
diff --git a/tests/auto/qaudiooutput/tst_qaudiooutput.cpp b/tests/auto/qaudiooutput/tst_qaudiooutput.cpp
index b001af1..26694cc 100644
--- a/tests/auto/qaudiooutput/tst_qaudiooutput.cpp
+++ b/tests/auto/qaudiooutput/tst_qaudiooutput.cpp
@@ -79,7 +79,7 @@ void tst_QAudioOutput::initTestCase()
     format.setSampleType(QAudioFormat::UnSignedInt);
 
     // Only perform tests if audio output device exists!
-    QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::deviceList(QAudio::AudioOutput);
+    QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::availableDevices(QAudio::AudioOutput);
     if(devices.size() > 0)
         available = true;
     else {
@@ -140,9 +140,9 @@ void tst_QAudioOutput::pullFile()
         audio->setNotifyInterval(100);
 
         // Always have default states, before start
-        QVERIFY(audio->state() == QAudio::StopState);
+        QVERIFY(audio->state() == QAudio::StoppedState);
         QVERIFY(audio->error() == QAudio::NoError);
-        QVERIFY(audio->clock() == 0);
+        QVERIFY(audio->elapsedUSecs() == 0);
 
         audio->start(&file);
         QTest::qWait(20); // wait 20ms
@@ -150,12 +150,12 @@ void tst_QAudioOutput::pullFile()
         QVERIFY(audio->state() == QAudio::ActiveState);
         QVERIFY(audio->error() == QAudio::NoError);
         QVERIFY(audio->periodSize() > 0);
-        QVERIFY(audio->clock() > 10000 && audio->clock() < 800000);
+        QVERIFY(audio->elapsedUSecs() > 10000 && audio->elapsedUSecs() < 800000);
         QVERIFY(stateSignal.count() == 1); // State changed to QAudio::ActiveState
 
         // Wait until finished...
         QTestEventLoop::instance().enterLoop(1);
-        QCOMPARE(audio->totalTime(), qint64(692250));
+        QCOMPARE(audio->processedUSecs(), qint64(692250));
 
 #ifdef Q_OS_WINCE
         // 4.wav is a little less than 700ms, so notify should fire 4 times on Wince!
@@ -166,8 +166,8 @@ void tst_QAudioOutput::pullFile()
 #endif
         audio->stop();
         QTest::qWait(20); // wait 20ms
-        QVERIFY(audio->state() == QAudio::StopState);
-        QVERIFY(audio->clock() == 0);
+        QVERIFY(audio->state() == QAudio::StoppedState);
+        QVERIFY(audio->elapsedUSecs() == 0);
         // Can only check to make sure we got at least 1 more signal, but can be more.
         QVERIFY(stateSignal.count() > 1);
 
@@ -184,7 +184,7 @@ void tst_QAudioOutput::pushFile()
 
         const qint64 fileSize = file.size();
 
-        QIODevice* feed = audio->start(0);
+        QIODevice* feed = audio->start();
 
         char* buffer = new char[fileSize];
         file.read(buffer, fileSize);
@@ -199,7 +199,7 @@ void tst_QAudioOutput::pushFile()
         QTestEventLoop::instance().enterLoop(1);
 
         QVERIFY(written == fileSize);
-        QVERIFY(audio->totalTime() == 692250);
+        QVERIFY(audio->processedUSecs() == 692250);
 
         audio->stop();
         file.close();