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-rw-r--r--examples/multimedia/audiooutput/audiooutput.cpp158
-rw-r--r--examples/multimedia/audiooutput/audiooutput.h26
2 files changed, 92 insertions, 92 deletions
diff --git a/examples/multimedia/audiooutput/audiooutput.cpp b/examples/multimedia/audiooutput/audiooutput.cpp
index d459e50e..ce26664 100644
--- a/examples/multimedia/audiooutput/audiooutput.cpp
+++ b/examples/multimedia/audiooutput/audiooutput.cpp
@@ -57,7 +57,7 @@ Generator::Generator(const QAudioFormat &format,
int frequency,
QObject *parent)
: QIODevice(parent)
- , pos(0)
+ , m_pos(0)
{
generateData(format, durationUs, frequency);
}
@@ -74,7 +74,7 @@ void Generator::start()
void Generator::stop()
{
- pos = 0;
+ m_pos = 0;
close();
}
@@ -89,8 +89,8 @@ void Generator::generateData(const QAudioFormat &format, qint64 durationUs, int
Q_ASSERT(length % sampleBytes == 0);
Q_UNUSED(sampleBytes) // suppress warning in release builds
- buffer.resize(length);
- unsigned char *ptr = reinterpret_cast<unsigned char *>(buffer.data());
+ m_buffer.resize(length);
+ unsigned char *ptr = reinterpret_cast<unsigned char *>(m_buffer.data());
int sampleIndex = 0;
while (length) {
@@ -127,9 +127,9 @@ qint64 Generator::readData(char *data, qint64 len)
{
qint64 total = 0;
while (len - total) {
- const qint64 chunk = qMin((buffer.size() - pos), len - total);
- memcpy(data, buffer.constData() + pos, chunk);
- pos = (pos + chunk) % buffer.size();
+ const qint64 chunk = qMin((m_buffer.size() - m_pos), len - total);
+ memcpy(data, m_buffer.constData() + m_pos, chunk);
+ m_pos = (m_pos + chunk) % m_buffer.size();
total += chunk;
}
return total;
@@ -145,7 +145,7 @@ qint64 Generator::writeData(const char *data, qint64 len)
qint64 Generator::bytesAvailable() const
{
- return buffer.size() + QIODevice::bytesAvailable();
+ return m_buffer.size() + QIODevice::bytesAvailable();
}
AudioTest::AudioTest()
@@ -153,99 +153,99 @@ AudioTest::AudioTest()
QWidget *window = new QWidget;
QVBoxLayout* layout = new QVBoxLayout;
- deviceBox = new QComboBox(this);
+ m_deviceBox = new QComboBox(this);
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);
+ m_deviceBox->addItem(deviceInfo.deviceName(), qVariantFromValue(deviceInfo));
+ connect(m_deviceBox,SIGNAL(activated(int)),SLOT(deviceChanged(int)));
+ layout->addWidget(m_deviceBox);
- button = new QPushButton(this);
- button->setText(tr("Click for Push Mode"));
- connect(button,SIGNAL(clicked()),SLOT(toggle()));
- layout->addWidget(button);
+ m_modeButton = new QPushButton(this);
+ m_modeButton->setText(tr("Click for Push Mode"));
+ connect(m_modeButton,SIGNAL(clicked()),SLOT(toggle()));
+ layout->addWidget(m_modeButton);
- button2 = new QPushButton(this);
- button2->setText(tr("Click To Suspend"));
- connect(button2,SIGNAL(clicked()),SLOT(togglePlay()));
- layout->addWidget(button2);
+ m_suspendResumeButton = new QPushButton(this);
+ m_suspendResumeButton->setText(tr("Click To Suspend"));
+ connect(m_suspendResumeButton,SIGNAL(clicked()),SLOT(togglePlay()));
+ layout->addWidget(m_suspendResumeButton);
window->setLayout(layout);
setCentralWidget(window);
window->show();
- buffer = new char[BUFFER_SIZE];
+ m_buffer = new char[BUFFER_SIZE];
- pullMode = true;
+ m_pullMode = true;
- timer = new QTimer(this);
- connect(timer,SIGNAL(timeout()),SLOT(writeMore()));
+ m_timer = new QTimer(this);
+ connect(m_timer,SIGNAL(timeout()),SLOT(writeMore()));
- settings.setFrequency(SYSTEM_FREQ);
- settings.setChannels(1);
- settings.setSampleSize(16);
- settings.setCodec("audio/pcm");
- settings.setByteOrder(QAudioFormat::LittleEndian);
- settings.setSampleType(QAudioFormat::SignedInt);
+ m_format.setFrequency(SYSTEM_FREQ);
+ m_format.setChannels(1);
+ m_format.setSampleSize(16);
+ m_format.setCodec("audio/pcm");
+ m_format.setByteOrder(QAudioFormat::LittleEndian);
+ m_format.setSampleType(QAudioFormat::SignedInt);
QAudioDeviceInfo info(QAudioDeviceInfo::defaultOutputDevice());
- if (!info.isFormatSupported(settings)) {
+ if (!info.isFormatSupported(m_format)) {
qWarning()<<"default format not supported try to use nearest";
- settings = info.nearestFormat(settings);
+ m_format = info.nearestFormat(m_format);
}
- gen = new Generator(settings, SECONDS*1000000, FREQ, this);
- gen->start();
+ m_generator = new Generator(m_format, SECONDS*1000000, FREQ, this);
+ m_generator->start();
- audioOutput = new QAudioOutput(settings,this);
- connect(audioOutput,SIGNAL(notify()),SLOT(status()));
- connect(audioOutput,SIGNAL(stateChanged(QAudio::State)),SLOT(state(QAudio::State)));
+ m_audioOutput = new QAudioOutput(m_format,this);
+ connect(m_audioOutput,SIGNAL(notify()),SLOT(status()));
+ connect(m_audioOutput,SIGNAL(stateChanged(QAudio::State)),SLOT(state(QAudio::State)));
- audioOutput->start(gen);
+ m_audioOutput->start(m_generator);
}
AudioTest::~AudioTest()
{
- delete [] buffer;
+ delete [] m_buffer;
}
void AudioTest::deviceChanged(int idx)
{
- timer->stop();
- gen->stop();
- audioOutput->stop();
- audioOutput->disconnect(this);
- delete audioOutput;
-
- device = deviceBox->itemData(idx).value<QAudioDeviceInfo>();
- audioOutput = new QAudioOutput(device,settings,this);
- connect(audioOutput,SIGNAL(notify()),SLOT(status()));
- connect(audioOutput,SIGNAL(stateChanged(QAudio::State)),SLOT(state(QAudio::State)));
- gen->start();
- audioOutput->start(gen);
+ m_timer->stop();
+ m_generator->stop();
+ m_audioOutput->stop();
+ m_audioOutput->disconnect(this);
+ delete m_audioOutput;
+
+ m_device = m_deviceBox->itemData(idx).value<QAudioDeviceInfo>();
+ m_audioOutput = new QAudioOutput(m_device,m_format,this);
+ connect(m_audioOutput,SIGNAL(notify()),SLOT(status()));
+ connect(m_audioOutput,SIGNAL(stateChanged(QAudio::State)),SLOT(state(QAudio::State)));
+ m_generator->start();
+ m_audioOutput->start(m_generator);
}
void AudioTest::status()
{
- qWarning() << "byteFree = " << audioOutput->bytesFree() << " bytes, elapsedUSecs = " << audioOutput->elapsedUSecs() << ", processedUSecs = " << audioOutput->processedUSecs();
+ qWarning() << "byteFree = " << m_audioOutput->bytesFree() << " bytes, elapsedUSecs = " << m_audioOutput->elapsedUSecs() << ", processedUSecs = " << m_audioOutput->processedUSecs();
}
void AudioTest::writeMore()
{
- if (!audioOutput)
+ if (!m_audioOutput)
return;
- if (audioOutput->state() == QAudio::StoppedState)
+ if (m_audioOutput->state() == QAudio::StoppedState)
return;
int l;
int out;
- int chunks = audioOutput->bytesFree()/audioOutput->periodSize();
+ int chunks = m_audioOutput->bytesFree()/m_audioOutput->periodSize();
while(chunks) {
- l = gen->read(buffer,audioOutput->periodSize());
+ l = m_generator->read(m_buffer,m_audioOutput->periodSize());
if (l > 0)
- out = output->write(buffer,l);
- if (l != audioOutput->periodSize())
+ out = m_output->write(m_buffer,l);
+ if (l != m_audioOutput->periodSize())
break;
chunks--;
}
@@ -255,39 +255,39 @@ void AudioTest::toggle()
{
// Change between pull and push modes
- timer->stop();
- audioOutput->stop();
+ m_timer->stop();
+ m_audioOutput->stop();
- if (pullMode) {
- button->setText("Click for Pull Mode");
- output = audioOutput->start();
- pullMode = false;
- timer->start(20);
+ if (m_pullMode) {
+ m_modeButton->setText("Click for Pull Mode");
+ m_output = m_audioOutput->start();
+ m_pullMode = false;
+ m_timer->start(20);
} else {
- button->setText("Click for Push Mode");
- pullMode = true;
- audioOutput->start(gen);
+ m_modeButton->setText("Click for Push Mode");
+ m_pullMode = true;
+ m_audioOutput->start(m_generator);
}
- button2->setText("Click To Suspend");
+ m_suspendResumeButton->setText("Click To Suspend");
}
void AudioTest::togglePlay()
{
// toggle suspend/resume
- if (audioOutput->state() == QAudio::SuspendedState) {
+ if (m_audioOutput->state() == QAudio::SuspendedState) {
qWarning() << "status: Suspended, resume()";
- audioOutput->resume();
- button2->setText("Click To Suspend");
- } else if (audioOutput->state() == QAudio::ActiveState) {
+ m_audioOutput->resume();
+ m_suspendResumeButton->setText("Click To Suspend");
+ } else if (m_audioOutput->state() == QAudio::ActiveState) {
qWarning() << "status: Active, suspend()";
- audioOutput->suspend();
- button2->setText("Click To Resume");
- } else if (audioOutput->state() == QAudio::StoppedState) {
+ m_audioOutput->suspend();
+ m_suspendResumeButton->setText("Click To Resume");
+ } else if (m_audioOutput->state() == QAudio::StoppedState) {
qWarning() << "status: Stopped, resume()";
- audioOutput->resume();
- button2->setText("Click To Suspend");
- } else if (audioOutput->state() == QAudio::IdleState) {
+ m_audioOutput->resume();
+ m_suspendResumeButton->setText("Click To Suspend");
+ } else if (m_audioOutput->state() == QAudio::IdleState) {
qWarning() << "status: IdleState";
}
}
diff --git a/examples/multimedia/audiooutput/audiooutput.h b/examples/multimedia/audiooutput/audiooutput.h
index 2c62d84..ac24a61 100644
--- a/examples/multimedia/audiooutput/audiooutput.h
+++ b/examples/multimedia/audiooutput/audiooutput.h
@@ -71,8 +71,8 @@ private:
void generateData(const QAudioFormat &format, qint64 durationUs, int frequency);
private:
- qint64 pos;
- QByteArray buffer;
+ qint64 m_pos;
+ QByteArray m_buffer;
};
class AudioTest : public QMainWindow
@@ -83,19 +83,19 @@ public:
~AudioTest();
private:
- QAudioDeviceInfo device;
- Generator* gen;
- QAudioOutput* audioOutput;
- QIODevice* output;
- QTimer* timer;
- QAudioFormat settings;
+ QAudioDeviceInfo m_device;
+ Generator* m_generator;
+ QAudioOutput* m_audioOutput;
+ QIODevice* m_output;
+ QTimer* m_timer;
+ QAudioFormat m_format;
- bool pullMode;
- char* buffer;
+ bool m_pullMode;
+ char* m_buffer;
- QPushButton* button;
- QPushButton* button2;
- QComboBox* deviceBox;
+ QPushButton* m_modeButton;
+ QPushButton* m_suspendResumeButton;
+ QComboBox* m_deviceBox;
private slots:
void status();
generated by cgit v0.12 at 2024-11-29 18:51:08 (GMT)