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Multimedia: examples coding style unification

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Change-Id: Iffae3a276bb2b01f871aee76dc069ce006d69fce
Reviewed-by: David Schulz <david.schulz@digia.com>
This commit is contained in:
hjk
2012-11-20 18:27:28 +01:00
committed by The Qt Project
parent 9f4d6e824c
commit 21c3915205
69 changed files with 394 additions and 466 deletions
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2
examples/audiodecoder/audiodecoder.cpp
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@@ -39,7 +39,7 @@
****************************************************************************/ ****************************************************************************/
#include "audiodecoder.h" #include "audiodecoder.h"
#include <iostream> #include <stdio.h>
AudioDecoder::AudioDecoder(bool isPlayback, bool isDelete) AudioDecoder::AudioDecoder(bool isPlayback, bool isDelete)
: m_cout(stdout, QIODevice::WriteOnly) : m_cout(stdout, QIODevice::WriteOnly)

8
examples/audiodecoder/audiodecoder.h
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@@ -41,16 +41,16 @@
#ifndef AUDIODECODER_H #ifndef AUDIODECODER_H
#define AUDIODECODER_H #define AUDIODECODER_H
#include <qaudiodecoder.h>
#include "wavefilewriter.h" #include "wavefilewriter.h"
#include <QAudioDecoder>
#include <QSoundEffect> #include <QSoundEffect>
#include <QTextStream> #include <QTextStream>
QT_USE_NAMESPACE
class AudioDecoder : public QObject class AudioDecoder : public QObject
{ {
Q_OBJECT Q_OBJECT
public: public:
AudioDecoder(bool isPlayback, bool isDelete); AudioDecoder(bool isPlayback, bool isDelete);
~AudioDecoder() { } ~AudioDecoder() { }
@@ -61,7 +61,7 @@ public:
void setTargetFilename(const QString &fileName); void setTargetFilename(const QString &fileName);
Q_SIGNALS: signals:
void done(); void done();
public slots: public slots:

15
examples/audiodecoder/main.cpp
View File

@@ -38,14 +38,15 @@
** **
****************************************************************************/ ****************************************************************************/
#include <QtCore/QCoreApplication>
#include <QTextStream>
#include <iostream>
#include <qfileinfo.h>
#include <qdir.h>
#include "audiodecoder.h" #include "audiodecoder.h"
#include <QCoreApplication>
#include <QDir>
#include <QFileInfo>
#include <QTextStream>
#include <stdio.h>
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
QCoreApplication app(argc, argv); QCoreApplication app(argc, argv);
@@ -90,4 +91,4 @@ int main(int argc, char *argv[])
decoder.start(); decoder.start();
return app.exec(); return app.exec();
}; }

6
examples/audiodecoder/wavefilewriter.cpp
View File

@@ -107,12 +107,12 @@ bool WaveFileWriter::open(const QString& fileName, const QAudioFormat& format)
return true; return true;
} }
bool WaveFileWriter::write(const QAudioBuffer& buffer) bool WaveFileWriter::write(const QAudioBuffer &buffer)
{ {
if (buffer.format() != m_format) if (buffer.format() != m_format)
return false; // buffer format has changed return false; // buffer format has changed
qint64 written = file.write((const char*)buffer.constData(), buffer.byteCount()); qint64 written = file.write((const char *)buffer.constData(), buffer.byteCount());
m_dataLength += written; m_dataLength += written;
return written == buffer.byteCount(); return written == buffer.byteCount();
} }
@@ -130,7 +130,7 @@ bool WaveFileWriter::close()
return result; return result;
} }
bool WaveFileWriter::writeHeader(const QAudioFormat& format) bool WaveFileWriter::writeHeader(const QAudioFormat &format)
{ {
// check if format is supported // check if format is supported
if (format.byteOrder() == QAudioFormat::BigEndian || format.sampleType() != QAudioFormat::SignedInt) if (format.byteOrder() == QAudioFormat::BigEndian || format.sampleType() != QAudioFormat::SignedInt)

11
examples/audiodecoder/wavefilewriter.h
View File

@@ -41,24 +41,25 @@
#ifndef WAVEFILEWRITER_H #ifndef WAVEFILEWRITER_H
#define WAVEFILEWRITER_H #define WAVEFILEWRITER_H
#include <QAudioBuffer>
#include <QFile>
#include <QObject> #include <QObject>
#include <qfile.h>
#include <qaudiobuffer.h>
class WaveFileWriter : public QObject class WaveFileWriter : public QObject
{ {
Q_OBJECT Q_OBJECT
public: public:
explicit WaveFileWriter(QObject *parent = 0); explicit WaveFileWriter(QObject *parent = 0);
~WaveFileWriter(); ~WaveFileWriter();
bool open(const QString& fileName, const QAudioFormat& format); bool open(const QString &fileName, const QAudioFormat &format);
bool write(const QAudioBuffer& buffer); bool write(const QAudioBuffer &buffer);
bool close(); bool close();
bool isOpen() const { return file.isOpen(); } bool isOpen() const { return file.isOpen(); }
private: private:
bool writeHeader(const QAudioFormat& format); bool writeHeader(const QAudioFormat &format);
bool writeDataLength(); bool writeDataLength();
QFile file; QFile file;

25
examples/audiodevices/audiodevices.cpp
View File

@@ -38,14 +38,11 @@
** **
****************************************************************************/ ****************************************************************************/
#include <qaudiodeviceinfo.h>
#include "audiodevices.h" #include "audiodevices.h"
// Utility functions for converting QAudioFormat fields into text // Utility functions for converting QAudioFormat fields into text
QString toString(QAudioFormat::SampleType sampleType) static QString toString(QAudioFormat::SampleType sampleType)
{ {
QString result("Unknown"); QString result("Unknown");
switch (sampleType) { switch (sampleType) {
@@ -64,7 +61,7 @@ QString toString(QAudioFormat::SampleType sampleType)
return result; return result;
} }
QString toString(QAudioFormat::Endian endian) static QString toString(QAudioFormat::Endian endian)
{ {
QString result("Unknown"); QString result("Unknown");
switch (endian) { switch (endian) {
@@ -79,8 +76,8 @@ QString toString(QAudioFormat::Endian endian)
} }
AudioDevicesBase::AudioDevicesBase(QWidget *parent, Qt::WindowFlags f) AudioDevicesBase::AudioDevicesBase(QWidget *parent)
: QMainWindow(parent, f) : QMainWindow(parent)
{ {
setupUi(this); setupUi(this);
} }
@@ -88,8 +85,8 @@ AudioDevicesBase::AudioDevicesBase(QWidget *parent, Qt::WindowFlags f)
AudioDevicesBase::~AudioDevicesBase() {} AudioDevicesBase::~AudioDevicesBase() {}
AudioTest::AudioTest(QWidget *parent, Qt::WindowFlags f) AudioTest::AudioTest(QWidget *parent)
: AudioDevicesBase(parent, f) : AudioDevicesBase(parent)
{ {
mode = QAudio::AudioOutput; mode = QAudio::AudioOutput;
@@ -186,11 +183,11 @@ void AudioTest::deviceChanged(int idx)
settings.setChannelCount(chz.at(0)); settings.setChannelCount(chz.at(0));
codecsBox->clear(); codecsBox->clear();
QStringList codecz = deviceInfo.supportedCodecs(); QStringList codecs = deviceInfo.supportedCodecs();
for (int i = 0; i < codecz.size(); ++i) for (int i = 0; i < codecs.size(); ++i)
codecsBox->addItem(QString("%1").arg(codecz.at(i))); codecsBox->addItem(QString("%1").arg(codecs.at(i)));
if (codecz.size()) if (codecs.size())
settings.setCodec(codecz.at(0)); settings.setCodec(codecs.at(0));
// Add false to create failed condition! // Add false to create failed condition!
codecsBox->addItem("audio/test"); codecsBox->addItem("audio/test");

9
examples/audiodevices/audiodevices.h
View File

@@ -41,24 +41,25 @@
#ifndef AUDIODEVICES_H #ifndef AUDIODEVICES_H
#define AUDIODEVICES_H #define AUDIODEVICES_H
#include <QObject> #include <QAudioDeviceInfo>
#include <QMainWindow> #include <QMainWindow>
#include <qaudiodeviceinfo.h> #include <QObject>
#include "ui_audiodevicesbase.h" #include "ui_audiodevicesbase.h"
class AudioDevicesBase : public QMainWindow, public Ui::AudioDevicesBase class AudioDevicesBase : public QMainWindow, public Ui::AudioDevicesBase
{ {
public: public:
AudioDevicesBase(QWidget *parent = 0, Qt::WindowFlags f = 0); AudioDevicesBase(QWidget *parent = 0);
virtual ~AudioDevicesBase(); virtual ~AudioDevicesBase();
}; };
class AudioTest : public AudioDevicesBase class AudioTest : public AudioDevicesBase
{ {
Q_OBJECT Q_OBJECT
public: public:
AudioTest(QWidget *parent = 0, Qt::WindowFlags f = 0); AudioTest(QWidget *parent = 0);
virtual ~AudioTest(); virtual ~AudioTest();
QAudioDeviceInfo deviceInfo; QAudioDeviceInfo deviceInfo;

18
examples/audioinput/audioinput.cpp
View File

@@ -42,15 +42,12 @@
#include <math.h> #include <math.h>
#include <QDateTime> #include <QDateTime>
#include <QDebug> #include <QDebug>
#include <QPainter> #include <QPainter>
#include <QVBoxLayout> #include <QVBoxLayout>
#include <QAudioDeviceInfo>
#include <qaudiodeviceinfo.h> #include <QAudioInput>
#include <qaudioinput.h> #include <qendian.h>
#include <QtCore/qendian.h>
#include "audioinput.h" #include "audioinput.h"
@@ -331,15 +328,14 @@ void InputTest::notified()
void InputTest::readMore() void InputTest::readMore()
{ {
if(!m_audioInput) if (!m_audioInput)
return; return;
qint64 len = m_audioInput->bytesReady(); qint64 len = m_audioInput->bytesReady();
if(len > BufferSize) if (len > BufferSize)
len = BufferSize; len = BufferSize;
qint64 l = m_input->read(m_buffer.data(), len); qint64 l = m_input->read(m_buffer.data(), len);
if(l > 0) { if (l > 0)
m_audioInfo->write(m_buffer.constData(), l); m_audioInfo->write(m_buffer.constData(), l);
}
} }
void InputTest::toggleMode() void InputTest::toggleMode()
@@ -364,7 +360,7 @@ void InputTest::toggleMode()
void InputTest::toggleSuspend() void InputTest::toggleSuspend()
{ {
// toggle suspend/resume // toggle suspend/resume
if(m_audioInput->state() == QAudio::SuspendedState) { if (m_audioInput->state() == QAudio::SuspendedState) {
qWarning() << "status: Suspended, resume()"; qWarning() << "status: Suspended, resume()";
m_audioInput->resume(); m_audioInput->resume();
m_suspendResumeButton->setText(tr(SUSPEND_LABEL)); m_suspendResumeButton->setText(tr(SUSPEND_LABEL));

21
examples/audioinput/audioinput.h
View File

@@ -41,20 +41,20 @@
#ifndef AUDIOINPUT_H #ifndef AUDIOINPUT_H
#define AUDIOINPUT_H #define AUDIOINPUT_H
#include <QPixmap> #include <QAudioInput>
#include <QWidget>
#include <QObject>
#include <QMainWindow>
#include <QPushButton>
#include <QComboBox>
#include <QByteArray> #include <QByteArray>
#include <QComboBox>
#include <QMainWindow>
#include <QObject>
#include <QPixmap>
#include <QPushButton>
#include <QSlider> #include <QSlider>
#include <QWidget>
#include <qaudioinput.h>
class AudioInfo : public QIODevice class AudioInfo : public QIODevice
{ {
Q_OBJECT Q_OBJECT
public: public:
AudioInfo(const QAudioFormat &format, QObject *parent); AudioInfo(const QAudioFormat &format, QObject *parent);
~AudioInfo(); ~AudioInfo();
@@ -94,9 +94,11 @@ private:
QPixmap m_pixmap; QPixmap m_pixmap;
}; };
class InputTest : public QMainWindow class InputTest : public QMainWindow
{ {
Q_OBJECT Q_OBJECT
public: public:
InputTest(); InputTest();
~InputTest(); ~InputTest();
@@ -133,5 +135,4 @@ private:
QByteArray m_buffer; QByteArray m_buffer;
}; };
#endif #endif // AUDIOINPUT_H

4
examples/audioinput/audioinput.pro
View File

@@ -1,7 +1,7 @@
TEMPLATE = app TEMPLATE = app
TARGET = audioinput TARGET = audioinput
QT += multimedia QT += multimedia widgets
HEADERS = audioinput.h HEADERS = audioinput.h
@@ -13,5 +13,3 @@ sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS *.pro
sources.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/audioinput sources.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/audioinput
INSTALLS += target sources INSTALLS += target sources
QT+=widgets

8
examples/audiooutput/audiooutput.cpp
View File

@@ -38,13 +38,13 @@
** **
****************************************************************************/ ****************************************************************************/
#include <QAudioDeviceInfo>
#include <QAudioOutput>
#include <QDebug> #include <QDebug>
#include <QVBoxLayout> #include <QVBoxLayout>
#include <qmath.h>
#include <qendian.h>
#include <qaudiooutput.h>
#include <qaudiodeviceinfo.h>
#include <QtCore/qmath.h>
#include <QtCore/qendian.h>
#include "audiooutput.h" #include "audiooutput.h"
#define PUSH_MODE_LABEL "Enable push mode" #define PUSH_MODE_LABEL "Enable push mode"

49
examples/audiooutput/audiooutput.h
View File

@@ -43,21 +43,21 @@
#include <math.h> #include <math.h>
#include <QObject> #include <QAudioOutput>
#include <QMainWindow>
#include <QLabel>
#include <QSlider>
#include <QIODevice>
#include <QTimer>
#include <QPushButton>
#include <QComboBox>
#include <QByteArray> #include <QByteArray>
#include <QComboBox>
#include <qaudiooutput.h> #include <QIODevice>
#include <QLabel>
#include <QMainWindow>
#include <QObject>
#include <QPushButton>
#include <QSlider>
#include <QTimer>
class Generator : public QIODevice class Generator : public QIODevice
{ {
Q_OBJECT Q_OBJECT
public: public:
Generator(const QAudioFormat &format, qint64 durationUs, int sampleRate, QObject *parent); Generator(const QAudioFormat &format, qint64 durationUs, int sampleRate, QObject *parent);
~Generator(); ~Generator();
@@ -80,6 +80,7 @@ private:
class AudioTest : public QMainWindow class AudioTest : public QMainWindow
{ {
Q_OBJECT Q_OBJECT
public: public:
AudioTest(); AudioTest();
~AudioTest(); ~AudioTest();
@@ -90,23 +91,24 @@ private:
void createAudioOutput(); void createAudioOutput();
private: private:
QTimer* m_pullTimer; QTimer *m_pullTimer;
// Owned by layout // Owned by layout
QPushButton* m_modeButton; QPushButton *m_modeButton;
QPushButton* m_suspendResumeButton; QPushButton *m_suspendResumeButton;
QComboBox* m_deviceBox; QComboBox *m_deviceBox;
QLabel* m_volumeLabel; QLabel *m_volumeLabel;
QSlider* m_volumeSlider; QSlider *m_volumeSlider;
QAudioDeviceInfo m_device; QAudioDeviceInfo m_device;
Generator* m_generator; Generator *m_generator;
QAudioOutput* m_audioOutput; QAudioOutput *m_audioOutput;
QIODevice* m_output; // not owned QIODevice *m_output; // not owned
QAudioFormat m_format; QAudioFormat m_format;
bool m_pullMode;
QByteArray m_buffer;
bool m_pullMode;
QByteArray m_buffer;
private slots: private slots:
void notified(); void notified();
void pullTimerExpired(); void pullTimerExpired();
@@ -117,5 +119,4 @@ private slots:
void volumeChanged(int); void volumeChanged(int);
}; };
#endif #endif // AUDIOOUTPUT_H

4
examples/audiooutput/audiooutput.pro
View File

@@ -1,7 +1,7 @@
TEMPLATE = app TEMPLATE = app
TARGET = audiooutput TARGET = audiooutput
QT += multimedia QT += multimedia widgets
HEADERS = audiooutput.h HEADERS = audiooutput.h
@@ -13,5 +13,3 @@ sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS *.pro
sources.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/audiooutput sources.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/audiooutput
INSTALLS += target sources INSTALLS += target sources
QT+=widgets

7
examples/audiooutput/main.cpp
View File

@@ -38,14 +38,13 @@
** **
****************************************************************************/ ****************************************************************************/
#include <QApplication>
#include <QtWidgets>
#include "audiooutput.h" #include "audiooutput.h"
int main(int argv, char **args) int main(int argc, char *argv[])
{ {
QApplication app(argv, args); QApplication app(argc, argv);
app.setApplicationName("Audio Output Test"); app.setApplicationName("Audio Output Test");
AudioTest audio; AudioTest audio;

57
examples/audiorecorder/audiorecorder.cpp
View File

@@ -38,12 +38,11 @@
** **
****************************************************************************/ ****************************************************************************/
#include <QtCore/qdir.h> #include <QAudioProbe>
#include <QtWidgets/qfiledialog.h> #include <QAudioRecorder>
#include <QDir>
#include <qaudiorecorder.h> #include <QFileDialog>
#include <qmediarecorder.h> #include <QMediaRecorder>
#include <qaudioprobe.h>
#include "audiorecorder.h" #include "audiorecorder.h"
@@ -53,8 +52,13 @@
#include "ui_audiorecorder.h" #include "ui_audiorecorder.h"
#endif #endif
AudioRecorder::AudioRecorder(QWidget *parent) static qreal getPeakValue(const QAudioFormat &format);
: static qreal getBufferLevel(const QAudioBuffer &buffer);
template <class T>
static qreal getBufferLevel(const T *buffer, int samples);
AudioRecorder::AudioRecorder(QWidget *parent) :
QMainWindow(parent), QMainWindow(parent),
ui(new Ui::AudioRecorder), ui(new Ui::AudioRecorder),
outputLocationSet(false) outputLocationSet(false)
@@ -63,7 +67,7 @@ AudioRecorder::AudioRecorder(QWidget *parent)
audioRecorder = new QAudioRecorder(this); audioRecorder = new QAudioRecorder(this);
probe = new QAudioProbe; probe = new QAudioProbe;
connect(probe, SIGNAL(audioBufferProbed(const QAudioBuffer&)), this, SLOT(processBuffer(QAudioBuffer))); connect(probe, SIGNAL(audioBufferProbed(QAudioBuffer)), this, SLOT(processBuffer(QAudioBuffer)));
probe->setSource(audioRecorder); probe->setSource(audioRecorder);
//audio devices //audio devices
@@ -216,19 +220,20 @@ QUrl AudioRecorder::generateAudioFilePath()
int lastImage = 0; int lastImage = 0;
int fileCount = 0; int fileCount = 0;
foreach(QString fileName, outputDir.entryList(QStringList() << "testclip_*")) { foreach (const QString &fileName, outputDir.entryList(QStringList(QString("testclip_*")))) {
int imgNumber = fileName.mid(5, fileName.size() - 9).toInt(); int imgNumber = fileName.mid(5, fileName.size() - 9).toInt();
lastImage = qMax(lastImage, imgNumber); lastImage = qMax(lastImage, imgNumber);
if (outputDir.exists(fileName)) if (outputDir.exists(fileName))
fileCount += 1; fileCount += 1;
} }
lastImage += fileCount; lastImage += fileCount;
QUrl location(QDir::toNativeSeparators(outputDir.canonicalPath() + QString("/testclip_%1").arg(lastImage + 1, 4, 10, QLatin1Char('0')))); QUrl location(QDir::toNativeSeparators(outputDir.canonicalPath()
+ QString("/testclip_%1").arg(lastImage + 1, 4, 10, QLatin1Char('0'))));
return location; return location;
} }
// This function returns the maximum possible sample value for a given audio format // This function returns the maximum possible sample value for a given audio format
qreal AudioRecorder::GetPeakValue(const QAudioFormat& format) qreal getPeakValue(const QAudioFormat& format)
{ {
// Note: Only the most common sample formats are supported // Note: Only the most common sample formats are supported
if (!format.isValid()) if (!format.isValid())
@@ -247,9 +252,9 @@ qreal AudioRecorder::GetPeakValue(const QAudioFormat& format)
case QAudioFormat::SignedInt: case QAudioFormat::SignedInt:
if (format.sampleSize() == 32) if (format.sampleSize() == 32)
return 2147483648.0; return 2147483648.0;
else if (format.sampleSize() == 16) if (format.sampleSize() == 16)
return 32768.0; return 32768.0;
else if (format.sampleSize() == 8) if (format.sampleSize() == 8)
return 128.0; return 128.0;
break; break;
case QAudioFormat::UnSignedInt: case QAudioFormat::UnSignedInt:
@@ -260,7 +265,7 @@ qreal AudioRecorder::GetPeakValue(const QAudioFormat& format)
return 0.0; return 0.0;
} }
qreal AudioRecorder::GetBufferLevel(const QAudioBuffer& buffer) qreal getBufferLevel(const QAudioBuffer& buffer)
{ {
if (!buffer.format().isValid() || buffer.format().byteOrder() != QAudioFormat::LittleEndian) if (!buffer.format().isValid() || buffer.format().byteOrder() != QAudioFormat::LittleEndian)
return 0.0; return 0.0;
@@ -268,7 +273,7 @@ qreal AudioRecorder::GetBufferLevel(const QAudioBuffer& buffer)
if (buffer.format().codec() != "audio/pcm") if (buffer.format().codec() != "audio/pcm")
return 0.0; return 0.0;
qreal peak_value = GetPeakValue(buffer.format()); qreal peak_value = getPeakValue(buffer.format());
if (qFuzzyCompare(peak_value, 0.0)) if (qFuzzyCompare(peak_value, 0.0))
return 0.0; return 0.0;
@@ -278,15 +283,15 @@ qreal AudioRecorder::GetBufferLevel(const QAudioBuffer& buffer)
break; break;
case QAudioFormat::Float: case QAudioFormat::Float:
if (buffer.format().sampleSize() == 32) if (buffer.format().sampleSize() == 32)
return GetBufferLevel(buffer.constData<float>(), buffer.sampleCount()) / peak_value; return getBufferLevel(buffer.constData<float>(), buffer.sampleCount()) / peak_value;
break; break;
case QAudioFormat::SignedInt: case QAudioFormat::SignedInt:
if (buffer.format().sampleSize() == 32) if (buffer.format().sampleSize() == 32)
return GetBufferLevel(buffer.constData<long int>(), buffer.sampleCount()) / peak_value; return getBufferLevel(buffer.constData<long int>(), buffer.sampleCount()) / peak_value;
else if (buffer.format().sampleSize() == 16) if (buffer.format().sampleSize() == 16)
return GetBufferLevel(buffer.constData<short int>(), buffer.sampleCount()) / peak_value; return getBufferLevel(buffer.constData<short int>(), buffer.sampleCount()) / peak_value;
else if (buffer.format().sampleSize() == 8) if (buffer.format().sampleSize() == 8)
return GetBufferLevel(buffer.constData<signed char>(), buffer.sampleCount()) / peak_value; return getBufferLevel(buffer.constData<signed char>(), buffer.sampleCount()) / peak_value;
break; break;
} }
@@ -294,12 +299,12 @@ qreal AudioRecorder::GetBufferLevel(const QAudioBuffer& buffer)
} }
template <class T> template <class T>
qreal AudioRecorder::GetBufferLevel(const T* buffer, int samples) qreal getBufferLevel(const T *buffer, int samples)
{ {
qreal max_value = 0.0; qreal max_value = 0.0;
for (int i = 0; i < samples; i++) { for (int i = 0; i < samples; ++i) {
qreal value = qAbs((qreal)buffer[i]); qreal value = qAbs(qreal(buffer[i]));
if (value > max_value) if (value > max_value)
max_value = value; max_value = value;
} }
@@ -309,6 +314,6 @@ qreal AudioRecorder::GetBufferLevel(const T* buffer, int samples)
void AudioRecorder::processBuffer(const QAudioBuffer& buffer) void AudioRecorder::processBuffer(const QAudioBuffer& buffer)
{ {
qreal level = GetBufferLevel(buffer); qreal level = getBufferLevel(buffer);
ui->audioLevel->setLevel(level); ui->audioLevel->setLevel(level);
} }

29
examples/audiorecorder/audiorecorder.h
View File

@@ -41,28 +41,21 @@
#ifndef AUDIORECORDER_H #ifndef AUDIORECORDER_H
#define AUDIORECORDER_H #define AUDIORECORDER_H
#include <QtCore/qurl.h> #include <QMainWindow>
#include <QtWidgets/qmainwindow.h> #include <QMediaRecorder>
#include <QUrl>
#include <qmediarecorder.h>
QT_BEGIN_NAMESPACE QT_BEGIN_NAMESPACE
namespace Ui { class AudioRecorder; }
namespace Ui {
class AudioRecorder;
}
class QAudioRecorder; class QAudioRecorder;
class QAudioProbe; class QAudioProbe;
class QAudioBuffer; class QAudioBuffer;
QT_END_NAMESPACE QT_END_NAMESPACE
QT_USE_NAMESPACE
class AudioRecorder : public QMainWindow class AudioRecorder : public QMainWindow
{ {
Q_OBJECT Q_OBJECT
public: public:
AudioRecorder(QWidget *parent = 0); AudioRecorder(QWidget *parent = 0);
~AudioRecorder(); ~AudioRecorder();
@@ -81,18 +74,12 @@ private slots:
QUrl generateAudioFilePath(); QUrl generateAudioFilePath();
private: private:
static qreal GetPeakValue(const QAudioFormat& format);
static qreal GetBufferLevel(const QAudioBuffer& buffer);
template <class T>
static qreal GetBufferLevel(const T* buffer, int samples);
Ui::AudioRecorder *ui; Ui::AudioRecorder *ui;
QAudioRecorder* audioRecorder; QAudioRecorder *audioRecorder;
QAudioProbe* probe; QAudioProbe *probe;
bool outputLocationSet; bool outputLocationSet;
}; };
#endif #endif // AUDIORECORDER_H

2
examples/audiorecorder/main.cpp
View File

@@ -50,4 +50,4 @@ int main(int argc, char *argv[])
recorder.show(); recorder.show();
return app.exec(); return app.exec();
}; }

2
examples/audiorecorder/qaudiolevel.h
View File

@@ -43,8 +43,6 @@
#include <QWidget> #include <QWidget>
QT_USE_NAMESPACE
class QAudioLevel : public QWidget class QAudioLevel : public QWidget
{ {
Q_OBJECT Q_OBJECT

4
examples/customvideosurface/customvideoitem/customvideoitem.pro
View File

@@ -1,7 +1,7 @@
TEMPLATE = app TEMPLATE = app
TARGET = customvideoitem TARGET = customvideoitem
QT += multimedia multimediawidgets QT += multimedia multimediawidgets widgets
contains(QT_CONFIG, opengl): QT += opengl contains(QT_CONFIG, opengl): QT += opengl
@@ -17,5 +17,3 @@ sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS *.pro
sources.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/customvideoitem sources.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/customvideoitem
INSTALLS += target sources INSTALLS += target sources
QT+=widgets

4
examples/customvideosurface/customvideoitem/main.cpp
View File

@@ -40,9 +40,9 @@
#include "videoplayer.h" #include "videoplayer.h"
#include <QtWidgets/QApplication> #include <QApplication>
int main(int argc, char **argv) int main(int argc, char *argv[])
{ {
QApplication app(argc, argv); QApplication app(argc, argv);

5
examples/customvideosurface/customvideoitem/videoitem.cpp
View File

@@ -40,8 +40,9 @@
#include "videoitem.h" #include "videoitem.h"
#include <QtWidgets> #include <QPainter>
#include <qvideosurfaceformat.h> #include <QTransform>
#include <QVideoSurfaceFormat>
VideoItem::VideoItem(QGraphicsItem *parent) VideoItem::VideoItem(QGraphicsItem *parent)
: QGraphicsItem(parent) : QGraphicsItem(parent)

10
examples/customvideosurface/customvideoitem/videoitem.h
View File

@@ -41,8 +41,8 @@
#ifndef VIDEOITEM_H #ifndef VIDEOITEM_H
#define VIDEOITEM_H #define VIDEOITEM_H
#include <qabstractvideosurface.h> #include <QAbstractVideoSurface>
#include <QtWidgets/QGraphicsItem> #include <QGraphicsItem>
class VideoItem class VideoItem
: public QAbstractVideoSurface, : public QAbstractVideoSurface,
@@ -50,13 +50,13 @@ class VideoItem
{ {
Q_OBJECT Q_OBJECT
Q_INTERFACES(QGraphicsItem) Q_INTERFACES(QGraphicsItem)
public: public:
explicit VideoItem(QGraphicsItem *parentItem = 0); explicit VideoItem(QGraphicsItem *parentItem = 0);
~VideoItem(); ~VideoItem();
QRectF boundingRect() const; QRectF boundingRect() const;
void paint( void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
//video surface //video surface
QList<QVideoFrame::PixelFormat> supportedPixelFormats( QList<QVideoFrame::PixelFormat> supportedPixelFormats(
@@ -74,5 +74,5 @@ private:
bool framePainted; bool framePainted;
}; };
#endif #endif // VIDEOITEM_H

8
examples/customvideosurface/customvideoitem/videoplayer.cpp
View File

@@ -42,14 +42,14 @@
#include "videoitem.h" #include "videoitem.h"
#include <QtWidgets> #include <QtWidgets>
#include <qvideosurfaceformat.h> #include <QVideoSurfaceFormat>
#if !defined(QT_NO_OPENGL) #if !defined(QT_NO_OPENGL)
# include <QtOpenGL/QGLWidget> # include <QGLWidget>
#endif #endif
VideoPlayer::VideoPlayer(QWidget *parent, Qt::WindowFlags flags) VideoPlayer::VideoPlayer(QWidget *parent)
: QWidget(parent, flags) : QWidget(parent)
, mediaPlayer(0, QMediaPlayer::VideoSurface) , mediaPlayer(0, QMediaPlayer::VideoSurface)
, videoItem(0) , videoItem(0)
, playButton(0) , playButton(0)

13
examples/customvideosurface/customvideoitem/videoplayer.h
View File

@@ -41,24 +41,23 @@
#ifndef VIDEOPLAYER_H #ifndef VIDEOPLAYER_H
#define VIDEOPLAYER_H #define VIDEOPLAYER_H
#include <qmediaplayer.h> #include <QMediaPlayer>
#include <QMovie>
#include <QtGui/QMovie> #include <QWidget>
#include <QtWidgets/QWidget>
QT_BEGIN_NAMESPACE QT_BEGIN_NAMESPACE
class QAbstractButton; class QAbstractButton;
class QSlider; class QSlider;
QT_END_NAMESPACE QT_END_NAMESPACE
class VideoItem; class VideoItem;
class VideoPlayer : public QWidget class VideoPlayer : public QWidget
{ {
Q_OBJECT Q_OBJECT
public: public:
VideoPlayer(QWidget *parent = 0, Qt::WindowFlags flags = 0); VideoPlayer(QWidget *parent = 0);
~VideoPlayer(); ~VideoPlayer();
QSize sizeHint() const { return QSize(800, 600); } QSize sizeHint() const { return QSize(800, 600); }
@@ -81,5 +80,5 @@ private:
QSlider *positionSlider; QSlider *positionSlider;
}; };
#endif #endif // VIDEOPLAYER_H

4
examples/customvideosurface/customvideowidget/customvideowidget.pro
View File

@@ -1,7 +1,7 @@
TEMPLATE = app TEMPLATE = app
TARGET = customvideowidget TARGET = customvideowidget
QT += multimedia multimediawidgets QT += multimedia multimediawidgets widgets
HEADERS = \ HEADERS = \
videoplayer.h \ videoplayer.h \
@@ -19,5 +19,3 @@ sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS *.pro
sources.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/customvideowidget sources.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/customvideowidget
INSTALLS += target sources INSTALLS += target sources
QT+=widgets

10
examples/customvideosurface/customvideowidget/videoplayer.h
View File

@@ -41,10 +41,9 @@
#ifndef VIDEOPLAYER_H #ifndef VIDEOPLAYER_H
#define VIDEOPLAYER_H #define VIDEOPLAYER_H
#include <qmediaplayer.h> #include <QMediaPlayer>
#include <QMovie>
#include <QtGui/QMovie> #include <QWidget>
#include <QtWidgets/QWidget>
QT_BEGIN_NAMESPACE QT_BEGIN_NAMESPACE
class QAbstractButton; class QAbstractButton;
@@ -54,6 +53,7 @@ QT_END_NAMESPACE
class VideoPlayer : public QWidget class VideoPlayer : public QWidget
{ {
Q_OBJECT Q_OBJECT
public: public:
VideoPlayer(QWidget *parent = 0); VideoPlayer(QWidget *parent = 0);
~VideoPlayer(); ~VideoPlayer();
@@ -74,4 +74,4 @@ private:
QSlider *positionSlider; QSlider *positionSlider;
}; };
#endif #endif // VIDEOPLAYER_H

11
examples/customvideosurface/customvideowidget/videowidget.h
View File

@@ -43,18 +43,13 @@
#include "videowidgetsurface.h" #include "videowidgetsurface.h"
#include <QtWidgets/QWidget> #include <QWidget>
QT_BEGIN_NAMESPACE
class QAbstractVideoSurface;
QT_END_NAMESPACE
class VideoWidgetSurface;
//! [0] //! [0]
class VideoWidget : public QWidget class VideoWidget : public QWidget
{ {
Q_OBJECT Q_OBJECT
public: public:
VideoWidget(QWidget *parent = 0); VideoWidget(QWidget *parent = 0);
~VideoWidget(); ~VideoWidget();
@@ -72,4 +67,4 @@ private:
}; };
//! [0] //! [0]
#endif #endif // VIDEOWIDGET_H

9
examples/customvideosurface/customvideowidget/videowidgetsurface.h
View File

@@ -41,15 +41,16 @@
#ifndef VIDEOWIDGETSURFACE_H #ifndef VIDEOWIDGETSURFACE_H
#define VIDEOWIDGETSURFACE_H #define VIDEOWIDGETSURFACE_H
#include <QtCore/QRect> #include <QAbstractVideoSurface>
#include <QtGui/QImage> #include <QImage>
#include <qabstractvideosurface.h> #include <QRect>
#include <qvideoframe.h> #include <QVideoFrame>
//! [0] //! [0]
class VideoWidgetSurface : public QAbstractVideoSurface class VideoWidgetSurface : public QAbstractVideoSurface
{ {
Q_OBJECT Q_OBJECT
public: public:
VideoWidgetSurface(QWidget *widget, QObject *parent = 0); VideoWidgetSurface(QWidget *widget, QObject *parent = 0);

10
examples/player/histogramwidget.h
View File

@@ -41,13 +41,12 @@
#ifndef HISTOGRAMWIDGET_H #ifndef HISTOGRAMWIDGET_H
#define HISTOGRAMWIDGET_H #define HISTOGRAMWIDGET_H
#include <QWidget>
#include <qvideoframe.h>
#include <QThread> #include <QThread>
#include <QVideoFrame>
#include <QWidget>
QT_USE_NAMESPACE class FrameProcessor: public QObject
{
class FrameProcessor: public QObject {
Q_OBJECT Q_OBJECT
public slots: public slots:
@@ -60,6 +59,7 @@ signals:
class HistogramWidget : public QWidget class HistogramWidget : public QWidget
{ {
Q_OBJECT Q_OBJECT
public: public:
explicit HistogramWidget(QWidget *parent = 0); explicit HistogramWidget(QWidget *parent = 0);
~HistogramWidget(); ~HistogramWidget();

12
examples/player/main.cpp
View File

@@ -40,7 +40,7 @@
#include "player.h" #include "player.h"
#include <QtWidgets> #include <QApplication>
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
@@ -53,18 +53,10 @@ int main(int argc, char *argv[])
Player player; Player player;
#if defined(Q_WS_SIMULATOR) #if defined(Q_WS_SIMULATOR)
# if (QT_VERSION >= QT_VERSION_CHECK(4, 7, 2))
player.setAttribute(Qt::WA_LockLandscapeOrientation); player.setAttribute(Qt::WA_LockLandscapeOrientation);
# else
// lock screen orientation
CAknAppUi* appUi = dynamic_cast<CAknAppUi*>(CEikonEnv::Static()->AppUi());
if(appUi){
QT_TRAP_THROWING(appUi ->SetOrientationL(CAknAppUi::EAppUiOrientationLandscape));
}
# endif
player.showMaximized(); player.showMaximized();
#else #else
player.show(); player.show();
#endif #endif
return app.exec(); return app.exec();
}; }

10
examples/player/player.cpp
View File

@@ -44,10 +44,9 @@
#include "playlistmodel.h" #include "playlistmodel.h"
#include "histogramwidget.h" #include "histogramwidget.h"
#include <qmediaservice.h> #include <QMediaService>
#include <qmediaplaylist.h> #include <QMediaPlaylist>
#include <qvideoprobe.h> #include <QVideoProbe>
#include <QtWidgets> #include <QtWidgets>
@@ -308,7 +307,7 @@ void Player::statusChanged(QMediaPlayer::MediaStatus status)
void Player::handleCursor(QMediaPlayer::MediaStatus status) void Player::handleCursor(QMediaPlayer::MediaStatus status)
{ {
#ifndef QT_NO_CURSOR #ifndef QT_NO_CURSOR
if( status == QMediaPlayer::LoadingMedia || if (status == QMediaPlayer::LoadingMedia ||
status == QMediaPlayer::BufferingMedia || status == QMediaPlayer::BufferingMedia ||
status == QMediaPlayer::StalledMedia) status == QMediaPlayer::StalledMedia)
setCursor(QCursor(Qt::BusyCursor)); setCursor(QCursor(Qt::BusyCursor));
@@ -427,4 +426,3 @@ void Player::showColorDialog()
colorDialog->show(); colorDialog->show();
} }
#endif #endif

25
examples/player/player.h
View File

@@ -41,38 +41,35 @@
#ifndef PLAYER_H #ifndef PLAYER_H
#define PLAYER_H #define PLAYER_H
#include <QtWidgets/QWidget>
#include <qmediaplayer.h>
#include <qmediaplaylist.h>
#include "videowidget.h" #include "videowidget.h"
#include <QWidget>
#include <QMediaPlayer>
#include <QMediaPlaylist>
QT_BEGIN_NAMESPACE QT_BEGIN_NAMESPACE
class QAbstractItemView; class QAbstractItemView;
class QLabel; class QLabel;
class QModelIndex;
class QSlider;
class QPushButton;
class QVideoProbe;
class QMediaPlayer; class QMediaPlayer;
class QModelIndex;
class QPushButton;
class QSlider;
class QVideoProbe;
class QVideoWidget; class QVideoWidget;
QT_END_NAMESPACE QT_END_NAMESPACE
QT_USE_NAMESPACE
class PlaylistModel; class PlaylistModel;
class HistogramWidget; class HistogramWidget;
class Player : public QWidget class Player : public QWidget
{ {
Q_OBJECT Q_OBJECT
public: public:
Player(QWidget *parent = 0); Player(QWidget *parent = 0);
~Player(); ~Player();
Q_SIGNALS: signals:
void fullScreenChanged(bool fullScreen); void fullScreenChanged(bool fullScreen);
private slots: private slots:
@@ -96,7 +93,7 @@ private slots:
#ifndef PLAYER_NO_COLOROPTIONS #ifndef PLAYER_NO_COLOROPTIONS
void showColorDialog(); void showColorDialog();
#endif #endif
void addToPlaylist(const QStringList& fileNames); void addToPlaylist(const QStringList &fileNames);
private: private:
void setTrackInfo(const QString &info); void setTrackInfo(const QString &info);
@@ -127,4 +124,4 @@ private:
qint64 duration; qint64 duration;
}; };
#endif #endif // PLAYER_H

8
examples/player/player.pro
View File

@@ -1,12 +1,11 @@
TEMPLATE = app TEMPLATE = app
TARGET = player TARGET = player
CONFIG += qt warn_on
QT += network \ QT += network \
xml \ xml \
multimedia \ multimedia \
multimediawidgets multimediawidgets \
widgets
HEADERS = \ HEADERS = \
player.h \ player.h \
@@ -25,10 +24,7 @@ maemo* {
DEFINES += PLAYER_NO_COLOROPTIONS DEFINES += PLAYER_NO_COLOROPTIONS
} }
#install
target.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/player target.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/player
sources.files = $$SOURCES $HEADERS $$RESOURCES $$FORMS *.pro sources.files = $$SOURCES $HEADERS $$RESOURCES $$FORMS *.pro
sources.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/player sources.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/player
INSTALLS += target sources INSTALLS += target sources
QT+=widgets

24
examples/player/playercontrols.cpp
View File

@@ -40,11 +40,11 @@
#include "playercontrols.h" #include "playercontrols.h"
#include <QtWidgets/qboxlayout.h> #include <QBoxLayout>
#include <QtWidgets/qslider.h> #include <QSlider>
#include <QtWidgets/qstyle.h> #include <QStyle>
#include <QtWidgets/qtoolbutton.h> #include <QToolButton>
#include <QtWidgets/qcombobox.h> #include <QComboBox>
PlayerControls::PlayerControls(QWidget *parent) PlayerControls::PlayerControls(QWidget *parent)
: QWidget(parent) : QWidget(parent)
@@ -89,7 +89,6 @@ PlayerControls::PlayerControls(QWidget *parent)
connect(volumeSlider, SIGNAL(sliderMoved(int)), this, SIGNAL(changeVolume(int))); connect(volumeSlider, SIGNAL(sliderMoved(int)), this, SIGNAL(changeVolume(int)));
rateBox = new QComboBox(this); rateBox = new QComboBox(this);
rateBox->addItem("0.5x", QVariant(0.5)); rateBox->addItem("0.5x", QVariant(0.5));
rateBox->addItem("1.0x", QVariant(1.0)); rateBox->addItem("1.0x", QVariant(1.0));
@@ -105,11 +104,8 @@ PlayerControls::PlayerControls(QWidget *parent)
layout->addWidget(playButton); layout->addWidget(playButton);
layout->addWidget(nextButton); layout->addWidget(nextButton);
layout->addWidget(muteButton); layout->addWidget(muteButton);
if (volumeSlider) layout->addWidget(volumeSlider);
layout->addWidget(volumeSlider); layout->addWidget(rateBox);
if (rateBox)
layout->addWidget(rateBox);
setLayout(layout); setLayout(layout);
} }
@@ -192,15 +188,15 @@ qreal PlayerControls::playbackRate() const
void PlayerControls::setPlaybackRate(float rate) void PlayerControls::setPlaybackRate(float rate)
{ {
for (int i=0; i<rateBox->count(); i++) { for (int i = 0; i < rateBox->count(); ++i) {
if (qFuzzyCompare(rate, float(rateBox->itemData(i).toDouble()))) { if (qFuzzyCompare(rate, float(rateBox->itemData(i).toDouble()))) {
rateBox->setCurrentIndex(i); rateBox->setCurrentIndex(i);
return; return;
} }
} }
rateBox->addItem( QString("%1x").arg(rate), QVariant(rate)); rateBox->addItem(QString("%1x").arg(rate), QVariant(rate));
rateBox->setCurrentIndex(rateBox->count()-1); rateBox->setCurrentIndex(rateBox->count() - 1);
} }
void PlayerControls::updateRate() void PlayerControls::updateRate()

11
examples/player/playercontrols.h
View File

@@ -41,9 +41,8 @@
#ifndef PLAYERCONTROLS_H #ifndef PLAYERCONTROLS_H
#define PLAYERCONTROLS_H #define PLAYERCONTROLS_H
#include <qmediaplayer.h> #include <QMediaPlayer>
#include <QWidget>
#include <QtWidgets/qwidget.h>
QT_BEGIN_NAMESPACE QT_BEGIN_NAMESPACE
class QAbstractButton; class QAbstractButton;
@@ -51,16 +50,14 @@ class QAbstractSlider;
class QComboBox; class QComboBox;
QT_END_NAMESPACE QT_END_NAMESPACE
QT_USE_NAMESPACE
class PlayerControls : public QWidget class PlayerControls : public QWidget
{ {
Q_OBJECT Q_OBJECT
public: public:
PlayerControls(QWidget *parent = 0); PlayerControls(QWidget *parent = 0);
QMediaPlayer::State state() const; QMediaPlayer::State state() const;
int volume() const; int volume() const;
bool isMuted() const; bool isMuted() const;
qreal playbackRate() const; qreal playbackRate() const;
@@ -98,4 +95,4 @@ private:
QComboBox *rateBox; QComboBox *rateBox;
}; };
#endif #endif // PLAYERCONTROLS_H

9
examples/player/playlistmodel.cpp
View File

@@ -40,10 +40,9 @@
#include "playlistmodel.h" #include "playlistmodel.h"
#include <QtCore/qfileinfo.h> #include <QFileInfo>
#include <QtCore/qurl.h> #include <QUrl>
#include <QMediaPlaylist>
#include <qmediaplaylist.h>
PlaylistModel::PlaylistModel(QObject *parent) PlaylistModel::PlaylistModel(QObject *parent)
: QAbstractItemModel(parent) : QAbstractItemModel(parent)
@@ -155,5 +154,3 @@ void PlaylistModel::changeItems(int start, int end)
m_data.clear(); m_data.clear();
emit dataChanged(index(start,0), index(end,ColumnCount)); emit dataChanged(index(start,0), index(end,ColumnCount));
} }

8
examples/player/playlistmodel.h
View File

@@ -41,18 +41,16 @@
#ifndef PLAYLISTMODEL_H #ifndef PLAYLISTMODEL_H
#define PLAYLISTMODEL_H #define PLAYLISTMODEL_H
#include <qtmultimediadefs.h> #include <QAbstractItemModel>
#include <QtCore/qabstractitemmodel.h>
QT_BEGIN_NAMESPACE QT_BEGIN_NAMESPACE
class QMediaPlaylist; class QMediaPlaylist;
QT_END_NAMESPACE QT_END_NAMESPACE
QT_USE_NAMESPACE
class PlaylistModel : public QAbstractItemModel class PlaylistModel : public QAbstractItemModel
{ {
Q_OBJECT Q_OBJECT
public: public:
enum Column enum Column
{ {
@@ -87,4 +85,4 @@ private:
QMap<QModelIndex, QVariant> m_data; QMap<QModelIndex, QVariant> m_data;
}; };
#endif #endif // PLAYLISTMODEL_H

6
examples/player/videowidget.cpp
View File

@@ -40,7 +40,8 @@
#include "videowidget.h" #include "videowidget.h"
#include <QtWidgets> #include <QKeyEvent>
#include <QMouseEvent>
VideoWidget::VideoWidget(QWidget *parent) VideoWidget::VideoWidget(QWidget *parent)
: QVideoWidget(parent) : QVideoWidget(parent)
@@ -58,11 +59,9 @@ void VideoWidget::keyPressEvent(QKeyEvent *event)
{ {
if (event->key() == Qt::Key_Escape && isFullScreen()) { if (event->key() == Qt::Key_Escape && isFullScreen()) {
setFullScreen(false); setFullScreen(false);
event->accept(); event->accept();
} else if (event->key() == Qt::Key_Enter && event->modifiers() & Qt::Key_Alt) { } else if (event->key() == Qt::Key_Enter && event->modifiers() & Qt::Key_Alt) {
setFullScreen(!isFullScreen()); setFullScreen(!isFullScreen());
event->accept(); event->accept();
} else { } else {
QVideoWidget::keyPressEvent(event); QVideoWidget::keyPressEvent(event);
@@ -72,7 +71,6 @@ void VideoWidget::keyPressEvent(QKeyEvent *event)
void VideoWidget::mouseDoubleClickEvent(QMouseEvent *event) void VideoWidget::mouseDoubleClickEvent(QMouseEvent *event)
{ {
setFullScreen(!isFullScreen()); setFullScreen(!isFullScreen());
event->accept(); event->accept();
} }

8
examples/player/videowidget.h
View File

@@ -37,16 +37,16 @@
** $QT_END_LICENSE$ ** $QT_END_LICENSE$
** **
****************************************************************************/ ****************************************************************************/
#ifndef VIDEOWIDGET_H #ifndef VIDEOWIDGET_H
#define VIDEOWIDGET_H #define VIDEOWIDGET_H
#include <qvideowidget.h> #include <QVideoWidget>
QT_USE_NAMESPACE
class VideoWidget : public QVideoWidget class VideoWidget : public QVideoWidget
{ {
Q_OBJECT Q_OBJECT
public: public:
VideoWidget(QWidget *parent = 0); VideoWidget(QWidget *parent = 0);
@@ -56,4 +56,4 @@ protected:
void mousePressEvent(QMouseEvent *event); void mousePressEvent(QMouseEvent *event);
}; };
#endif #endif // VIDEOWIDGET_H

32
examples/radio/radio.cpp
View File

@@ -40,27 +40,25 @@
#include "radio.h" #include "radio.h"
#include <QtWidgets>
Radio::Radio() Radio::Radio()
{ {
radio = new QRadioTuner; radio = new QRadioTuner;
connect(radio, SIGNAL(error(QRadioTuner::Error)), this, SLOT(error(QRadioTuner::Error))); connect(radio, SIGNAL(error(QRadioTuner::Error)), this, SLOT(error(QRadioTuner::Error)));
if(radio->isBandSupported(QRadioTuner::FM)) if (radio->isBandSupported(QRadioTuner::FM))
radio->setBand(QRadioTuner::FM); radio->setBand(QRadioTuner::FM);
QWidget *window = new QWidget; QWidget *window = new QWidget;
QVBoxLayout* layout = new QVBoxLayout; QVBoxLayout *layout = new QVBoxLayout;
QHBoxLayout* buttonBar = new QHBoxLayout; QHBoxLayout *buttonBar = new QHBoxLayout;
QHBoxLayout* topBar = new QHBoxLayout; QHBoxLayout *topBar = new QHBoxLayout;
layout->addLayout(topBar); layout->addLayout(topBar);
freq = new QLabel; freq = new QLabel;
freq->setText(QString("%1 kHz").arg(radio->frequency()/1000)); freq->setText(QString("%1 kHz").arg(radio->frequency()/1000));
topBar->addWidget(freq); topBar->addWidget(freq);
connect(radio,SIGNAL(frequencyChanged(int)),this,SLOT(freqChanged(int))); connect(radio, SIGNAL(frequencyChanged(int)), SLOT(freqChanged(int)));
signal = new QLabel; signal = new QLabel;
if (radio->isAvailable()) if (radio->isAvailable())
@@ -68,34 +66,34 @@ Radio::Radio()
else else
signal->setText(tr("No radio found")); signal->setText(tr("No radio found"));
topBar->addWidget(signal); topBar->addWidget(signal);
connect(radio,SIGNAL(signalStrengthChanged(int)),this,SLOT(signalChanged(int))); connect(radio, SIGNAL(signalStrengthChanged(int)), SLOT(signalChanged(int)));
volumeSlider = new QSlider(Qt::Vertical,this); volumeSlider = new QSlider(Qt::Vertical,this);
volumeSlider->setRange(0,100); volumeSlider->setRange(0, 100);
volumeSlider->setValue(50); volumeSlider->setValue(50);
connect(volumeSlider,SIGNAL(valueChanged(int)),this,SLOT(updateVolume(int))); connect(volumeSlider, SIGNAL(valueChanged(int)), SLOT(updateVolume(int)));
topBar->addWidget(volumeSlider); topBar->addWidget(volumeSlider);
layout->addLayout(buttonBar); layout->addLayout(buttonBar);
searchLeft = new QPushButton; searchLeft = new QPushButton;
searchLeft->setText(tr("scan Down")); searchLeft->setText(tr("scan Down"));
connect(searchLeft,SIGNAL(clicked()),SLOT(searchDown())); connect(searchLeft, SIGNAL(clicked()), SLOT(searchDown()));
buttonBar->addWidget(searchLeft); buttonBar->addWidget(searchLeft);
left = new QPushButton; left = new QPushButton;
left->setText(tr("Freq Down")); left->setText(tr("Freq Down"));
connect(left,SIGNAL(clicked()),SLOT(freqDown())); connect(left, SIGNAL(clicked()), SLOT(freqDown()));
buttonBar->addWidget(left); buttonBar->addWidget(left);
right = new QPushButton; right = new QPushButton;
connect(right,SIGNAL(clicked()),SLOT(freqUp())); connect(right, SIGNAL(clicked()), SLOT(freqUp()));
right->setText(tr("Freq Up")); right->setText(tr("Freq Up"));
buttonBar->addWidget(right); buttonBar->addWidget(right);
searchRight = new QPushButton; searchRight = new QPushButton;
searchRight->setText(tr("scan Up")); searchRight->setText(tr("scan Up"));
connect(searchRight,SIGNAL(clicked()),SLOT(searchUp())); connect(searchRight, SIGNAL(clicked()), SLOT(searchUp()));
buttonBar->addWidget(searchRight); buttonBar->addWidget(searchRight);
window->setLayout(layout); window->setLayout(layout);
@@ -112,14 +110,14 @@ Radio::~Radio()
void Radio::freqUp() void Radio::freqUp()
{ {
int f = radio->frequency(); int f = radio->frequency();
f = f + radio->frequencyStep(QRadioTuner::FM); f += radio->frequencyStep(QRadioTuner::FM);
radio->setFrequency(f); radio->setFrequency(f);
} }
void Radio::freqDown() void Radio::freqDown()
{ {
int f = radio->frequency(); int f = radio->frequency();
f = f - radio->frequencyStep(QRadioTuner::FM); f -= radio->frequencyStep(QRadioTuner::FM);
radio->setFrequency(f); radio->setFrequency(f);
} }
@@ -153,7 +151,7 @@ void Radio::updateVolume(int v)
void Radio::error(QRadioTuner::Error error) void Radio::error(QRadioTuner::Error error)
{ {
const QMetaObject* metaObj = radio->metaObject(); const QMetaObject *metaObj = radio->metaObject();
QMetaEnum errorEnum = metaObj->enumerator(metaObj->indexOfEnumerator("Error")); QMetaEnum errorEnum = metaObj->enumerator(metaObj->indexOfEnumerator("Error"));
qWarning().nospace() << "Warning: Example application received error QRadioTuner::" << errorEnum.valueToKey(error); qWarning().nospace() << "Warning: Example application received error QRadioTuner::" << errorEnum.valueToKey(error);
} }

29
examples/radio/radio.h
View File

@@ -42,16 +42,7 @@
#define RADIO_H #define RADIO_H
#include <QtWidgets> #include <QtWidgets>
#include <QRadioTuner>
#include <qradiotuner.h>
QT_BEGIN_NAMESPACE
class QLabel;
class QPushButton;
class QSlider;
QT_END_NAMESPACE
QT_USE_NAMESPACE
class Radio : public QMainWindow class Radio : public QMainWindow
{ {
@@ -71,14 +62,14 @@ public slots:
void error(QRadioTuner::Error error); void error(QRadioTuner::Error error);
private: private:
QLabel* freq; QLabel *freq;
QLabel* signal; QLabel *signal;
QPushButton* left; QPushButton *left;
QPushButton* right; QPushButton *right;
QPushButton* searchLeft; QPushButton *searchLeft;
QPushButton* searchRight; QPushButton *searchRight;
QSlider* volumeSlider; QSlider *volumeSlider;
QRadioTuner* radio; QRadioTuner *radio;
}; };
#endif #endif // RADIO_H

5
examples/spectrum/app/app.pro
View File

@@ -6,7 +6,7 @@ TEMPLATE = app
TARGET = spectrum TARGET = spectrum
QT += multimedia QT += multimedia widgets
SOURCES += main.cpp \ SOURCES += main.cpp \
engine.cpp \ engine.cpp \
@@ -89,6 +89,3 @@ macx {
QMAKE_LFLAGS += -Wl,--rpath=\\\$\$ORIGIN QMAKE_LFLAGS += -Wl,--rpath=\\\$\$ORIGIN
} }
} }
QT+=widgets

8
examples/spectrum/app/engine.cpp
View File

@@ -44,14 +44,14 @@
#include <math.h> #include <math.h>
#include <QAudioInput>
#include <QAudioOutput>
#include <QCoreApplication> #include <QCoreApplication>
#include <QDebug>
#include <QFile>
#include <QMetaObject> #include <QMetaObject>
#include <QSet> #include <QSet>
#include <QtMultimedia/QAudioInput>
#include <QtMultimedia/QAudioOutput>
#include <QDebug>
#include <QThread> #include <QThread>
#include <QFile>
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
// Constants // Constants

46
examples/spectrum/app/engine.h
View File

@@ -45,12 +45,13 @@
#include "spectrumanalyser.h" #include "spectrumanalyser.h"
#include "wavfile.h" #include "wavfile.h"
#include <QObject> #include <QAudioDeviceInfo>
#include <QByteArray> #include <QAudioFormat>
#include <QBuffer> #include <QBuffer>
#include <QByteArray>
#include <QDir>
#include <QObject>
#include <QVector> #include <QVector>
#include <QtMultimedia/QAudioDeviceInfo>
#include <QtMultimedia/QAudioFormat>
#ifdef DUMP_CAPTURED_AUDIO #ifdef DUMP_CAPTURED_AUDIO
#define DUMP_DATA #define DUMP_DATA
@@ -60,14 +61,11 @@
#define DUMP_DATA #define DUMP_DATA
#endif #endif
#ifdef DUMP_DATA
#include <QDir>
#endif
class FrequencySpectrum; class FrequencySpectrum;
QT_FORWARD_DECLARE_CLASS(QAudioInput) QT_BEGIN_NAMESPACE
QT_FORWARD_DECLARE_CLASS(QAudioOutput) class QAudioInput;
QT_FORWARD_DECLARE_CLASS(QFile) class QAudioOutput;
QT_END_NAMESPACE
/** /**
* This class interfaces with the QtMultimedia audio classes, and also with * This class interfaces with the QtMultimedia audio classes, and also with
@@ -75,26 +73,28 @@ QT_FORWARD_DECLARE_CLASS(QFile)
* of audio data, meanwhile performing real-time analysis of the audio level * of audio data, meanwhile performing real-time analysis of the audio level
* and frequency spectrum. * and frequency spectrum.
*/ */
class Engine : public QObject { class Engine : public QObject
{
Q_OBJECT Q_OBJECT
public: public:
Engine(QObject *parent = 0); explicit Engine(QObject *parent = 0);
~Engine(); ~Engine();
const QList<QAudioDeviceInfo>& availableAudioInputDevices() const const QList<QAudioDeviceInfo> &availableAudioInputDevices() const
{ return m_availableAudioInputDevices; } { return m_availableAudioInputDevices; }
const QList<QAudioDeviceInfo>& availableAudioOutputDevices() const const QList<QAudioDeviceInfo> &availableAudioOutputDevices() const
{ return m_availableAudioOutputDevices; } { return m_availableAudioOutputDevices; }
QAudio::Mode mode() const { return m_mode; } QAudio::Mode mode() const { return m_mode; }
QAudio::State state() const { return m_state; } QAudio::State state() const { return m_state; }
/** /**
* \return Current audio format * \return Current audio format
* \note May be QAudioFormat() if engine is not initialized * \note May be QAudioFormat() if engine is not initialized
*/ */
const QAudioFormat& format() const { return m_format; } const QAudioFormat& format() const { return m_format; }
/** /**
* Stop any ongoing recording or playback, and reset to ground state. * Stop any ongoing recording or playback, and reset to ground state.
@@ -125,25 +125,25 @@ public:
* Position of the audio input device. * Position of the audio input device.
* \return Position in bytes. * \return Position in bytes.
*/ */
qint64 recordPosition() const { return m_recordPosition; } qint64 recordPosition() const { return m_recordPosition; }
/** /**
* RMS level of the most recently processed set of audio samples. * RMS level of the most recently processed set of audio samples.
* \return Level in range (0.0, 1.0) * \return Level in range (0.0, 1.0)
*/ */
qreal rmsLevel() const { return m_rmsLevel; } qreal rmsLevel() const { return m_rmsLevel; }
/** /**
* Peak level of the most recently processed set of audio samples. * Peak level of the most recently processed set of audio samples.
* \return Level in range (0.0, 1.0) * \return Level in range (0.0, 1.0)
*/ */
qreal peakLevel() const { return m_peakLevel; } qreal peakLevel() const { return m_peakLevel; }
/** /**
* Position of the audio output device. * Position of the audio output device.
* \return Position in bytes. * \return Position in bytes.
*/ */
qint64 playPosition() const { return m_playPosition; } qint64 playPosition() const { return m_playPosition; }
/** /**
* Length of the internal engine buffer. * Length of the internal engine buffer.
@@ -155,7 +155,7 @@ public:
* Amount of data held in the buffer. * Amount of data held in the buffer.
* \return Data length in bytes. * \return Data length in bytes.
*/ */
qint64 dataLength() const { return m_dataLength; } qint64 dataLength() const { return m_dataLength; }
/** /**
* Set window function applied to audio data before spectral analysis. * Set window function applied to audio data before spectral analysis.

4
examples/spectrum/app/frequencyspectrum.cpp
View File

@@ -58,12 +58,12 @@ int FrequencySpectrum::count() const
return m_elements.count(); return m_elements.count();
} }
FrequencySpectrum::Element& FrequencySpectrum::operator[](int index) FrequencySpectrum::Element &FrequencySpectrum::operator[](int index)
{ {
return m_elements[index]; return m_elements[index];
} }
const FrequencySpectrum::Element& FrequencySpectrum::operator[](int index) const const FrequencySpectrum::Element &FrequencySpectrum::operator[](int index) const
{ {
return m_elements[index]; return m_elements[index];
} }

6
examples/spectrum/app/levelmeter.h
View File

@@ -49,10 +49,12 @@
* RMS and peak levels of the window of audio samples most recently analyzed * RMS and peak levels of the window of audio samples most recently analyzed
* by the Engine. * by the Engine.
*/ */
class LevelMeter : public QWidget { class LevelMeter : public QWidget
{
Q_OBJECT Q_OBJECT
public: public:
LevelMeter(QWidget *parent = 0); explicit LevelMeter(QWidget *parent = 0);
~LevelMeter(); ~LevelMeter();
void paintEvent(QPaintEvent *event); void paintEvent(QPaintEvent *event);

6
examples/spectrum/app/main.cpp
View File

@@ -38,15 +38,15 @@
** **
****************************************************************************/ ****************************************************************************/
#include <QtWidgets/QApplication>
#include "mainwidget.h" #include "mainwidget.h"
#include <QApplication>
int main(int argc, char **argv) int main(int argc, char *argv[])
{ {
QApplication app(argc, argv); QApplication app(argc, argv);
app.setApplicationName("QtMultimedia spectrum analyzer"); app.setApplicationName("QtMultimedia spectrum analyzer");
MainWidget w;
MainWidget w;
w.show(); w.show();
return app.exec(); return app.exec();

1
examples/spectrum/app/mainwidget.cpp
View File

@@ -445,4 +445,3 @@ void MainWidget::updateModeMenu()
m_generateToneAction->setChecked(GenerateToneMode == m_mode); m_generateToneAction->setChecked(GenerateToneMode == m_mode);
m_recordAction->setChecked(RecordMode == m_mode); m_recordAction->setChecked(RecordMode == m_mode);
} }

29
examples/spectrum/app/mainwidget.h
View File

@@ -41,33 +41,37 @@
#ifndef MAINWIDGET_H #ifndef MAINWIDGET_H
#define MAINWIDGET_H #define MAINWIDGET_H
#include <QWidget> #include <QAudio>
#include <QIcon> #include <QIcon>
#include <QtMultimedia/qaudio.h> #include <QWidget>
class Engine; class Engine;
class FrequencySpectrum; class FrequencySpectrum;
class ProgressBar;
class Spectrograph;
class Waveform;
class LevelMeter; class LevelMeter;
class ProgressBar;
class SettingsDialog; class SettingsDialog;
class Spectrograph;
class ToneGeneratorDialog; class ToneGeneratorDialog;
class Waveform;
QT_FORWARD_DECLARE_CLASS(QAudioFormat) QT_BEGIN_NAMESPACE
QT_FORWARD_DECLARE_CLASS(QLabel) class QAction;
QT_FORWARD_DECLARE_CLASS(QPushButton) class QAudioFormat;
QT_FORWARD_DECLARE_CLASS(QMenu) class QLabel;
QT_FORWARD_DECLARE_CLASS(QAction) class QMenu;
class QPushButton;
QT_END_NAMESPACE
/** /**
* Main application widget, responsible for connecting the various UI * Main application widget, responsible for connecting the various UI
* elements to the Engine. * elements to the Engine.
*/ */
class MainWidget : public QWidget { class MainWidget : public QWidget
{
Q_OBJECT Q_OBJECT
public: public:
MainWidget(QWidget *parent = 0); explicit MainWidget(QWidget *parent = 0);
~MainWidget(); ~MainWidget();
// QObject // QObject
@@ -138,7 +142,6 @@ private:
QAction* m_loadFileAction; QAction* m_loadFileAction;
QAction* m_generateToneAction; QAction* m_generateToneAction;
QAction* m_recordAction; QAction* m_recordAction;
}; };
#endif // MAINWIDGET_H #endif // MAINWIDGET_H

7
examples/spectrum/app/progressbar.h
View File

@@ -47,10 +47,12 @@
* Widget which displays a the current fill state of the Engine's internal * Widget which displays a the current fill state of the Engine's internal
* buffer, and the current play/record position within that buffer. * buffer, and the current play/record position within that buffer.
*/ */
class ProgressBar : public QWidget { class ProgressBar : public QWidget
{
Q_OBJECT Q_OBJECT
public: public:
ProgressBar(QWidget *parent = 0); explicit ProgressBar(QWidget *parent = 0);
~ProgressBar(); ~ProgressBar();
void reset(); void reset();
@@ -68,7 +70,6 @@ private:
qint64 m_playPosition; qint64 m_playPosition;
qint64 m_windowPosition; qint64 m_windowPosition;
qint64 m_windowLength; qint64 m_windowLength;
}; };
#endif // PROGRESSBAR_H #endif // PROGRESSBAR_H

4
examples/spectrum/app/settingsdialog.cpp
View File

@@ -39,14 +39,14 @@
****************************************************************************/ ****************************************************************************/
#include "settingsdialog.h" #include "settingsdialog.h"
#include <QCheckBox>
#include <QComboBox> #include <QComboBox>
#include <QDialogButtonBox> #include <QDialogButtonBox>
#include <QLabel> #include <QLabel>
#include <QPushButton> #include <QPushButton>
#include <QVBoxLayout>
#include <QCheckBox>
#include <QSlider> #include <QSlider>
#include <QSpinBox> #include <QSpinBox>
#include <QVBoxLayout>
SettingsDialog::SettingsDialog( SettingsDialog::SettingsDialog(
const QList<QAudioDeviceInfo> &availableInputDevices, const QList<QAudioDeviceInfo> &availableInputDevices,

32
examples/spectrum/app/settingsdialog.h
View File

@@ -43,29 +43,33 @@
#include "spectrum.h" #include "spectrum.h"
#include <QDialog> #include <QDialog>
#include <QtMultimedia/QAudioDeviceInfo> #include <QAudioDeviceInfo>
QT_FORWARD_DECLARE_CLASS(QComboBox) QT_BEGIN_NAMESPACE
QT_FORWARD_DECLARE_CLASS(QCheckBox) class QComboBox;
QT_FORWARD_DECLARE_CLASS(QSlider) class QCheckBox;
QT_FORWARD_DECLARE_CLASS(QSpinBox) class QSlider;
QT_FORWARD_DECLARE_CLASS(QGridLayout) class QSpinBox;
class QGridLayout;
QT_END_NAMESPACE
/** /**
* Dialog used to control settings such as the audio input / output device * Dialog used to control settings such as the audio input / output device
* and the windowing function. * and the windowing function.
*/ */
class SettingsDialog : public QDialog { class SettingsDialog : public QDialog
{
Q_OBJECT Q_OBJECT
public: public:
SettingsDialog(const QList<QAudioDeviceInfo> &availableInputDevices, SettingsDialog(const QList<QAudioDeviceInfo> &availableInputDevices,
const QList<QAudioDeviceInfo> &availableOutputDevices, const QList<QAudioDeviceInfo> &availableOutputDevices,
QWidget *parent = 0); QWidget *parent = 0);
~SettingsDialog(); ~SettingsDialog();
WindowFunction windowFunction() const { return m_windowFunction; } WindowFunction windowFunction() const { return m_windowFunction; }
const QAudioDeviceInfo& inputDevice() const { return m_inputDevice; } const QAudioDeviceInfo &inputDevice() const { return m_inputDevice; }
const QAudioDeviceInfo& outputDevice() const { return m_outputDevice; } const QAudioDeviceInfo &outputDevice() const { return m_outputDevice; }
private slots: private slots:
void windowFunctionChanged(int index); void windowFunctionChanged(int index);
@@ -77,11 +81,9 @@ private:
QAudioDeviceInfo m_inputDevice; QAudioDeviceInfo m_inputDevice;
QAudioDeviceInfo m_outputDevice; QAudioDeviceInfo m_outputDevice;
QComboBox* m_inputDeviceComboBox; QComboBox *m_inputDeviceComboBox;
QComboBox* m_outputDeviceComboBox; QComboBox *m_outputDeviceComboBox;
QComboBox *m_windowFunctionComboBox;
QComboBox* m_windowFunctionComboBox;
}; };
#endif // SETTINGSDIALOG_H #endif // SETTINGSDIALOG_H

4
examples/spectrum/app/spectrograph.cpp
View File

@@ -39,9 +39,9 @@
****************************************************************************/ ****************************************************************************/
#include "spectrograph.h" #include "spectrograph.h"
#include <QPainter>
#include <QMouseEvent>
#include <QDebug> #include <QDebug>
#include <QMouseEvent>
#include <QPainter>
#include <QTimerEvent> #include <QTimerEvent>
const int NullTimerId = -1; const int NullTimerId = -1;

11
examples/spectrum/app/spectrograph.h
View File

@@ -41,19 +41,20 @@
#ifndef SPECTROGRAPH_H #ifndef SPECTROGRAPH_H
#define SPECTROGRAPH_H #define SPECTROGRAPH_H
#include <QWidget>
#include "frequencyspectrum.h" #include "frequencyspectrum.h"
QT_FORWARD_DECLARE_CLASS(QMouseEvent) #include <QWidget>
/** /**
* Widget which displays a spectrograph showing the frequency spectrum * Widget which displays a spectrograph showing the frequency spectrum
* of the window of audio samples most recently analyzed by the Engine. * of the window of audio samples most recently analyzed by the Engine.
*/ */
class Spectrograph : public QWidget { class Spectrograph : public QWidget
{
Q_OBJECT Q_OBJECT
public: public:
Spectrograph(QWidget *parent = 0); explicit Spectrograph(QWidget *parent = 0);
~Spectrograph(); ~Spectrograph();
void setParams(int numBars, qreal lowFreq, qreal highFreq); void setParams(int numBars, qreal lowFreq, qreal highFreq);
@@ -92,8 +93,6 @@ private:
qreal m_lowFreq; qreal m_lowFreq;
qreal m_highFreq; qreal m_highFreq;
FrequencySpectrum m_spectrum; FrequencySpectrum m_spectrum;
}; };
#endif // SPECTROGRAPH_H #endif // SPECTROGRAPH_H

8
examples/spectrum/app/spectrum.h
View File

@@ -41,7 +41,7 @@
#ifndef SPECTRUM_H #ifndef SPECTRUM_H
#define SPECTRUM_H #define SPECTRUM_H
#include <QtCore/qglobal.h> #include <qglobal.h>
#include "utils.h" #include "utils.h"
#include "fftreal_wrapper.h" // For FFTLengthPowerOfTwo #include "fftreal_wrapper.h" // For FFTLengthPowerOfTwo
@@ -89,7 +89,8 @@ enum WindowFunction {
const WindowFunction DefaultWindowFunction = HannWindow; const WindowFunction DefaultWindowFunction = HannWindow;
struct Tone { struct Tone
{
Tone(qreal freq = 0.0, qreal amp = 0.0) Tone(qreal freq = 0.0, qreal amp = 0.0)
: frequency(freq), amplitude(amp) : frequency(freq), amplitude(amp)
{ } { }
@@ -101,7 +102,8 @@ struct Tone {
qreal amplitude; qreal amplitude;
}; };
struct SweptTone { struct SweptTone
{
SweptTone(qreal start = 0.0, qreal end = 0.0, qreal amp = 0.0) SweptTone(qreal start = 0.0, qreal end = 0.0, qreal amp = 0.0)
: startFreq(start), endFreq(end), amplitude(amp) : startFreq(start), endFreq(end), amplitude(amp)
{ Q_ASSERT(end >= start); } { Q_ASSERT(end >= start); }

15
examples/spectrum/app/spectrumanalyser.cpp
View File

@@ -40,14 +40,13 @@
#include "spectrumanalyser.h" #include "spectrumanalyser.h"
#include "utils.h" #include "utils.h"
#include <QtCore/qmath.h>
#include <QtCore/qmetatype.h>
#include <QtMultimedia/QAudioFormat>
#include <QThread>
#include "fftreal_wrapper.h" #include "fftreal_wrapper.h"
#include <qmath.h>
#include <qmetatype.h>
#include <QAudioFormat>
#include <QThread>
SpectrumAnalyserThread::SpectrumAnalyserThread(QObject *parent) SpectrumAnalyserThread::SpectrumAnalyserThread(QObject *parent)
: QObject(parent) : QObject(parent)
#ifndef DISABLE_FFT #ifndef DISABLE_FFT
@@ -275,7 +274,3 @@ void SpectrumAnalyser::calculationComplete(const FrequencySpectrum &spectrum)
emit spectrumChanged(spectrum); emit spectrumChanged(spectrum);
m_state = Idle; m_state = Idle;
} }

2
examples/spectrum/app/spectrumanalyser.h
View File

@@ -72,6 +72,7 @@ class SpectrumAnalyserThreadPrivate;
class SpectrumAnalyserThread : public QObject class SpectrumAnalyserThread : public QObject
{ {
Q_OBJECT Q_OBJECT
public: public:
SpectrumAnalyserThread(QObject *parent); SpectrumAnalyserThread(QObject *parent);
~SpectrumAnalyserThread(); ~SpectrumAnalyserThread();
@@ -121,6 +122,7 @@ private:
class SpectrumAnalyser : public QObject class SpectrumAnalyser : public QObject
{ {
Q_OBJECT Q_OBJECT
public: public:
SpectrumAnalyser(QObject *parent = 0); SpectrumAnalyser(QObject *parent = 0);
~SpectrumAnalyser(); ~SpectrumAnalyser();

7
examples/spectrum/app/tonegenerator.cpp
View File

@@ -41,9 +41,9 @@
#include "spectrum.h" #include "spectrum.h"
#include "utils.h" #include "utils.h"
#include <QByteArray> #include <QByteArray>
#include <QtMultimedia/QAudioFormat> #include <QAudioFormat>
#include <QtCore/qmath.h> #include <qmath.h>
#include <QtCore/qendian.h> #include <qendian.h>
void generateTone(const SweptTone &tone, const QAudioFormat &format, QByteArray &buffer) void generateTone(const SweptTone &tone, const QAudioFormat &format, QByteArray &buffer)
{ {
@@ -88,4 +88,3 @@ void generateTone(const SweptTone &tone, const QAudioFormat &format, QByteArray
phaseStep += phaseStepStep; phaseStep += phaseStepStep;
} }
} }

8
examples/spectrum/app/tonegenerator.h
View File

@@ -41,11 +41,13 @@
#ifndef TONEGENERATOR_H #ifndef TONEGENERATOR_H
#define TONEGENERATOR_H #define TONEGENERATOR_H
#include <QtCore/qglobal.h> #include <qglobal.h>
#include "spectrum.h" #include "spectrum.h"
QT_FORWARD_DECLARE_CLASS(QAudioFormat) QT_BEGIN_NAMESPACE
QT_FORWARD_DECLARE_CLASS(QByteArray) class QAudioFormat;
class QByteArray;
QT_END_NAMESPACE
/** /**
* Generate a sine wave * Generate a sine wave

11
examples/spectrum/app/tonegeneratordialog.cpp
View File

@@ -77,26 +77,23 @@ ToneGeneratorDialog::ToneGeneratorDialog(QWidget *parent)
m_amplitudeSlider->setValue(ToneGeneratorAmplitudeDefault); m_amplitudeSlider->setValue(ToneGeneratorAmplitudeDefault);
// Add widgets to layout // Add widgets to layout
QGridLayout *frequencyControlLayout = new QGridLayout;
QScopedPointer<QGridLayout> frequencyControlLayout(new QGridLayout);
QLabel *frequencyLabel = new QLabel(tr("Frequency (Hz)"), this); QLabel *frequencyLabel = new QLabel(tr("Frequency (Hz)"), this);
frequencyControlLayout->addWidget(frequencyLabel, 0, 0, 2, 1); frequencyControlLayout->addWidget(frequencyLabel, 0, 0, 2, 1);
frequencyControlLayout->addWidget(m_frequencySlider, 0, 1); frequencyControlLayout->addWidget(m_frequencySlider, 0, 1);
frequencyControlLayout->addWidget(m_frequencySpinBox, 1, 1); frequencyControlLayout->addWidget(m_frequencySpinBox, 1, 1);
m_toneGeneratorFrequencyControl->setLayout(frequencyControlLayout.data()); m_toneGeneratorFrequencyControl->setLayout(frequencyControlLayout);
frequencyControlLayout.take(); // ownership transferred to m_toneGeneratorFrequencyControl
m_toneGeneratorFrequencyControl->setEnabled(false); m_toneGeneratorFrequencyControl->setEnabled(false);
QScopedPointer<QGridLayout> toneGeneratorLayout(new QGridLayout); QGridLayout *toneGeneratorLayout = new QGridLayout;
QLabel *amplitudeLabel = new QLabel(tr("Amplitude"), this); QLabel *amplitudeLabel = new QLabel(tr("Amplitude"), this);
toneGeneratorLayout->addWidget(m_toneGeneratorSweepCheckBox, 0, 1); toneGeneratorLayout->addWidget(m_toneGeneratorSweepCheckBox, 0, 1);
toneGeneratorLayout->addWidget(m_toneGeneratorFrequencyControl, 1, 0, 1, 2); toneGeneratorLayout->addWidget(m_toneGeneratorFrequencyControl, 1, 0, 1, 2);
toneGeneratorLayout->addWidget(amplitudeLabel, 2, 0); toneGeneratorLayout->addWidget(amplitudeLabel, 2, 0);
toneGeneratorLayout->addWidget(m_amplitudeSlider, 2, 1); toneGeneratorLayout->addWidget(m_amplitudeSlider, 2, 1);
m_toneGeneratorControl->setLayout(toneGeneratorLayout.data()); m_toneGeneratorControl->setLayout(toneGeneratorLayout);
m_toneGeneratorControl->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed); m_toneGeneratorControl->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
dialogLayout->addWidget(m_toneGeneratorControl); dialogLayout->addWidget(m_toneGeneratorControl);
toneGeneratorLayout.take(); // ownership transferred
// Connect // Connect
CHECKED_CONNECT(m_toneGeneratorSweepCheckBox, SIGNAL(toggled(bool)), CHECKED_CONNECT(m_toneGeneratorSweepCheckBox, SIGNAL(toggled(bool)),

35
examples/spectrum/app/tonegeneratordialog.h
View File

@@ -42,21 +42,25 @@
#define TONEGENERATORDIALOG_H #define TONEGENERATORDIALOG_H
#include "spectrum.h" #include "spectrum.h"
#include <QAudioDeviceInfo>
#include <QDialog> #include <QDialog>
#include <QtMultimedia/QAudioDeviceInfo>
QT_FORWARD_DECLARE_CLASS(QCheckBox) QT_BEGIN_NAMESPACE
QT_FORWARD_DECLARE_CLASS(QSlider) class QCheckBox;
QT_FORWARD_DECLARE_CLASS(QSpinBox) class QSlider;
QT_FORWARD_DECLARE_CLASS(QGridLayout) class QSpinBox;
class QGridLayout;
QT_END_NAMESPACE
/** /**
* Dialog which controls the parameters of the tone generator. * Dialog which controls the parameters of the tone generator.
*/ */
class ToneGeneratorDialog : public QDialog { class ToneGeneratorDialog : public QDialog
{
Q_OBJECT Q_OBJECT
public: public:
ToneGeneratorDialog(QWidget *parent = 0); explicit ToneGeneratorDialog(QWidget *parent = 0);
~ToneGeneratorDialog(); ~ToneGeneratorDialog();
bool isFrequencySweepEnabled() const; bool isFrequencySweepEnabled() const;
@@ -67,15 +71,14 @@ private slots:
void frequencySweepEnabled(bool enabled); void frequencySweepEnabled(bool enabled);
private: private:
QCheckBox* m_toneGeneratorSweepCheckBox; QCheckBox *m_toneGeneratorSweepCheckBox;
bool m_frequencySweepEnabled; bool m_frequencySweepEnabled;
QWidget* m_toneGeneratorControl; QWidget *m_toneGeneratorControl;
QWidget* m_toneGeneratorFrequencyControl; QWidget *m_toneGeneratorFrequencyControl;
QSlider* m_frequencySlider; QSlider *m_frequencySlider;
QSpinBox* m_frequencySpinBox; QSpinBox *m_frequencySpinBox;
qreal m_frequency; qreal m_frequency;
QSlider* m_amplitudeSlider; QSlider *m_amplitudeSlider;
}; };
#endif // TONEGENERATORDIALOG_H #endif // TONEGENERATORDIALOG_H

10
examples/spectrum/app/utils.cpp
View File

@@ -38,7 +38,7 @@
** **
****************************************************************************/ ****************************************************************************/
#include <QtMultimedia/QAudioFormat> #include <QAudioFormat>
#include "utils.h" #include "utils.h"
qint64 audioDuration(const QAudioFormat &format, qint64 bytes) qint64 audioDuration(const QAudioFormat &format, qint64 bytes)
@@ -119,10 +119,10 @@ bool isPCM(const QAudioFormat &format)
bool isPCMS16LE(const QAudioFormat &format) bool isPCMS16LE(const QAudioFormat &format)
{ {
return (isPCM(format) && return isPCM(format) &&
format.sampleType() == QAudioFormat::SignedInt && format.sampleType() == QAudioFormat::SignedInt &&
format.sampleSize() == 16 && format.sampleSize() == 16 &&
format.byteOrder() == QAudioFormat::LittleEndian); format.byteOrder() == QAudioFormat::LittleEndian;
} }
const qint16 PCMS16MaxValue = 32767; const qint16 PCMS16MaxValue = 32767;

13
examples/spectrum/app/waveform.h
View File

@@ -41,12 +41,10 @@
#ifndef WAVEFORM_H #ifndef WAVEFORM_H
#define WAVEFORM_H #define WAVEFORM_H
#include <QWidget> #include <QAudioFormat>
#include <QtMultimedia/QAudioFormat>
#include <QPixmap> #include <QPixmap>
#include <QScopedPointer> #include <QScopedPointer>
#include <QWidget>
QT_FORWARD_DECLARE_CLASS(QByteArray)
/** /**
* Widget which displays a section of the audio waveform. * Widget which displays a section of the audio waveform.
@@ -57,10 +55,12 @@ QT_FORWARD_DECLARE_CLASS(QByteArray)
* outside the widget, it is moved to the right end of the tile array and * outside the widget, it is moved to the right end of the tile array and
* painted with the next section of the waveform. * painted with the next section of the waveform.
*/ */
class Waveform : public QWidget { class Waveform : public QWidget
{
Q_OBJECT Q_OBJECT
public: public:
Waveform(QWidget *parent = 0); explicit Waveform(QWidget *parent = 0);
~Waveform(); ~Waveform();
// QWidget // QWidget
@@ -197,7 +197,6 @@ private:
qint64 m_windowPosition; qint64 m_windowPosition;
qint64 m_windowLength; qint64 m_windowLength;
}; };
#endif // WAVEFORM_H #endif // WAVEFORM_H

2
examples/spectrum/app/wavfile.cpp
View File

@@ -38,7 +38,7 @@
** **
****************************************************************************/ ****************************************************************************/
#include <QtCore/qendian.h> #include <qendian.h>
#include <QVector> #include <QVector>
#include <QDebug> #include <QDebug>
#include "utils.h" #include "utils.h"

11
examples/spectrum/app/wavfile.h
View File

@@ -38,13 +38,12 @@
** **
****************************************************************************/ ****************************************************************************/
#ifndef WAVFILE_H #ifndef WAVFILE_H
#define WAVFILE_H #define WAVFILE_H
#include <QtCore/qobject.h> #include <QObject>
#include <QtCore/qfile.h> #include <QFile>
#include <QtMultimedia/qaudioformat.h> #include <QAudioFormat>
class WavFile : public QFile class WavFile : public QFile
{ {
@@ -62,8 +61,6 @@ private:
private: private:
QAudioFormat m_fileFormat; QAudioFormat m_fileFormat;
qint64 m_headerLength; qint64 m_headerLength;
}; };
#endif #endif // WAVFILE_H

8
examples/spectrum/spectrum.pro
View File

@@ -4,11 +4,9 @@ TEMPLATE = subdirs
# Ensure that library is built before application # Ensure that library is built before application
CONFIG += ordered CONFIG += ordered
QT += widgets
!contains(DEFINES, DISABLE_FFT) { !contains(DEFINES, DISABLE_FFT): SUBDIRS += 3rdparty/fftreal
SUBDIRS += 3rdparty/fftreal
}
SUBDIRS += app SUBDIRS += app
TARGET = spectrum TARGET = spectrum
@@ -16,5 +14,3 @@ TARGET = spectrum
sources.files = README.txt spectrum.pri spectrum.pro TODO.txt sources.files = README.txt spectrum.pri spectrum.pro TODO.txt
sources.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/spectrum sources.path = $$[QT_INSTALL_EXAMPLES]/qtmultimedia/spectrum
INSTALLS += sources INSTALLS += sources
QT+=widgets

2
examples/videographicsitem/main.cpp
View File

@@ -40,7 +40,7 @@
#include "videoplayer.h" #include "videoplayer.h"
#include <QtWidgets/QApplication> #include <QApplication>
int main(int argc, char **argv) int main(int argc, char **argv)
{ {

8
examples/videographicsitem/videoplayer.cpp
View File

@@ -41,11 +41,11 @@
#include "videoplayer.h" #include "videoplayer.h"
#include <QtWidgets> #include <QtWidgets>
#include <qvideosurfaceformat.h> #include <QVideoSurfaceFormat>
#include <qgraphicsvideoitem.h> #include <QGraphicsVideoItem>
VideoPlayer::VideoPlayer(QWidget *parent, Qt::WindowFlags flags) VideoPlayer::VideoPlayer(QWidget *parent)
: QWidget(parent, flags) : QWidget(parent)
, mediaPlayer(0, QMediaPlayer::VideoSurface) , mediaPlayer(0, QMediaPlayer::VideoSurface)
, videoItem(0) , videoItem(0)
, playButton(0) , playButton(0)

10
examples/videographicsitem/videoplayer.h
View File

@@ -41,10 +41,9 @@
#ifndef VIDEOPLAYER_H #ifndef VIDEOPLAYER_H
#define VIDEOPLAYER_H #define VIDEOPLAYER_H
#include <qmediaplayer.h> #include <QMediaPlayer>
#include <QMovie>
#include <QtGui/QMovie> #include <QWidget>
#include <QtWidgets/QWidget>
QT_BEGIN_NAMESPACE QT_BEGIN_NAMESPACE
class QAbstractButton; class QAbstractButton;
@@ -55,8 +54,9 @@ QT_END_NAMESPACE
class VideoPlayer : public QWidget class VideoPlayer : public QWidget
{ {
Q_OBJECT Q_OBJECT
public: public:
VideoPlayer(QWidget *parent = 0, Qt::WindowFlags flags = 0); VideoPlayer(QWidget *parent = 0);
~VideoPlayer(); ~VideoPlayer();
QSize sizeHint() const { return QSize(800, 600); } QSize sizeHint() const { return QSize(800, 600); }