QString formatToString(const QAudioFormat &format)
{
QString result;
if (QAudioFormat() != format) {
if (format.codec() == "audio/pcm") {
Q_ASSERT(format.sampleType() == QAudioFormat::SignedInt);
const QString formatEndian = (format.byteOrder() == QAudioFormat::LittleEndian)
? QString("LE") : QString("BE");
QString formatType;
switch (format.sampleType()) {
case QAudioFormat::SignedInt:
formatType = "signed";
break;
case QAudioFormat::UnSignedInt:
formatType = "unsigned";
break;
case QAudioFormat::Float:
formatType = "float";
break;
case QAudioFormat::Unknown:
formatType = "unknown";
break;
}
QString formatChannels = QString("%1 channels").arg(format.channelCount());
switch (format.channelCount()) {
case 1:
formatChannels = "mono";
break;
case 2:
formatChannels = "stereo";
break;
}
result = QString("%1 Hz %2 bit %3 %4 %5")
.arg(format.sampleRate())
.arg(format.sampleSize())
.arg(formatType)
.arg(formatEndian)
.arg(formatChannels);
} else {
result = format.codec();
}
}
return result;
}
bool QAudioDeviceInfoInternal::isFormatSupported(
const QAudioFormat &format) const
{
getSupportedFormats();
bool supported = false;
if (m_capabilities.contains(format.codec())) {
const Capabilities &codecCaps = m_capabilities[format.codec()];
supported = codecCaps.m_frequencies.contains(format.frequency())
&& codecCaps.m_channels.contains(format.channels())
&& codecCaps.m_sampleSizes.contains(format.sampleSize())
&& codecCaps.m_byteOrders.contains(format.byteOrder())
&& codecCaps.m_sampleTypes.contains(format.sampleType());
}
return supported;
}
bool QAudioDeviceInfoInternal::testSettings(const QAudioFormat& format) const
{
// Set nearest to closest settings that do work.
// See if what is in settings will work (return value).
bool failed = false;
// For now, just accept only audio/pcm codec
if(!format.codec().startsWith(QLatin1String("audio/pcm")))
failed = true;
if(!failed && !(format.channels() == 1 || format.channels() == 2))
failed = true;
if(!failed) {
if(!(format.frequency() == 8000 || format.frequency() == 11025 || format.frequency() == 22050 ||
format.frequency() == 44100 || format.frequency() == 48000 || format.frequency() == 96000))
failed = true;
}
if(!failed && !(format.sampleSize() == 8 || format.sampleSize() == 16))
failed = true;
if(!failed) {
// settings work
return true;
}
return false;
}
bool WaveFileWriter::open(const QString& fileName, const QAudioFormat& format)
{
if (file.isOpen())
return false; // file already open
if (format.codec() != "audio/pcm" || format.sampleType() != QAudioFormat::SignedInt)
return false; // data format is not supported
if (fileName == "stdout")
{
if (!file.open(stdout, QIODevice::WriteOnly))
return false;
}
else
{
file.setFileName(fileName);
if (!file.open(QIODevice::WriteOnly))
return false; // unable to open file for writing
}
if (!writeHeader(format))
return false;
m_format = format;
return true;
}
bool formatQtToNative(const QAudioFormat &inputFormat,
TUint32 &outputFourCC,
TMMFCapabilities &outputFormat) {
bool result = false;
// Need to use temporary variables because TMMFCapabilities fields are all
// TInt, rather than MMF enumerated types.
TMMFSampleRate outputSampleRate;
TMMFMonoStereo outputChannels;
TMMFSoundEncoding outputEncoding;
if (inputFormat.codec() == "audio/pcm") {
result =
sampleRateQtToNative(inputFormat.frequency(), outputSampleRate)
&& channelsQtToNative(inputFormat.channels(), outputChannels)
&& sampleInfoQtToNative(inputFormat.sampleSize(),
inputFormat.byteOrder(),
inputFormat.sampleType(),
outputFourCC,
outputEncoding);
}
if (result) {
outputFormat.iRate = outputSampleRate;
outputFormat.iChannels = outputChannels;
outputFormat.iEncoding = outputEncoding;
}
return result;
}
QAudioFormat QAudioDeviceInfoInternal::preferredFormat() const
{
QAudioFormat format;
switch (m_mode) {
case QAudio::AudioOutput:
format.setFrequency(44100);
format.setChannels(2);
format.setSampleSize(16);
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setCodec(QLatin1String("audio/pcm"));
break;
case QAudio::AudioInput:
format.setFrequency(8000);
format.setChannels(1);
format.setSampleSize(16);
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setCodec(QLatin1String("audio/pcm"));
break;
default:
Q_ASSERT_X(false, Q_FUNC_INFO, "Invalid mode");
}
if (!isFormatSupported(format)) {
format = QAudioFormat();
format.setCodec(QLatin1String("audio/pcm"));
if (m_capabilities.contains(format.codec())) {
const Capabilities &codecCaps = m_capabilities[format.codec()];
if (codecCaps.m_frequencies.size())
format.setFrequency(codecCaps.m_frequencies[0]);
if (codecCaps.m_channels.size())
format.setChannels(codecCaps.m_channels[0]);
if (codecCaps.m_sampleSizes.size())
format.setSampleSize(codecCaps.m_sampleSizes[0]);
if (codecCaps.m_byteOrders.size())
format.setByteOrder(codecCaps.m_byteOrders[0]);
if (codecCaps.m_sampleTypes.size())
format.setSampleType(codecCaps.m_sampleTypes[0]);
}
}
return format;
}
/*!
Returns the closest QAudioFormat to the supplied \a settings that the system supports.
These settings are provided by the platform/audio plugin being used.
They are also dependent on the \l {QAudio}::Mode being used.
*/
QAudioFormat QAudioDeviceInfo::nearestFormat(const QAudioFormat &settings) const
{
if (isFormatSupported(settings))
return settings;
QAudioFormat nearest = settings;
QList<QString> testCodecs = supportedCodecs();
QList<int> testChannels = supportedChannelCounts();
QList<QAudioFormat::Endian> testByteOrders = supportedByteOrders();
QList<QAudioFormat::SampleType> testSampleTypes;
QList<QAudioFormat::SampleType> sampleTypesAvailable = supportedSampleTypes();
QMap<int,int> testSampleRates;
QList<int> sampleRatesAvailable = supportedSampleRates();
QMap<int,int> testSampleSizes;
QList<int> sampleSizesAvailable = supportedSampleSizes();
// Get sorted lists for checking
if (testCodecs.contains(settings.codec())) {
testCodecs.removeAll(settings.codec());
testCodecs.insert(0, settings.codec());
}
testChannels.removeAll(settings.channelCount());
testChannels.insert(0, settings.channelCount());
testByteOrders.removeAll(settings.byteOrder());
testByteOrders.insert(0, settings.byteOrder());
if (sampleTypesAvailable.contains(settings.sampleType()))
testSampleTypes.append(settings.sampleType());
if (sampleTypesAvailable.contains(QAudioFormat::SignedInt))
testSampleTypes.append(QAudioFormat::SignedInt);
if (sampleTypesAvailable.contains(QAudioFormat::UnSignedInt))
testSampleTypes.append(QAudioFormat::UnSignedInt);
if (sampleTypesAvailable.contains(QAudioFormat::Float))
testSampleTypes.append(QAudioFormat::Float);
if (sampleSizesAvailable.contains(settings.sampleSize()))
testSampleSizes.insert(0,settings.sampleSize());
sampleSizesAvailable.removeAll(settings.sampleSize());
foreach (int size, sampleSizesAvailable) {
int larger = (size > settings.sampleSize()) ? size : settings.sampleSize();
int smaller = (size > settings.sampleSize()) ? settings.sampleSize() : size;
bool isMultiple = ( 0 == (larger % smaller));
int diff = larger - smaller;
testSampleSizes.insert((isMultiple ? diff : diff+100000), size);
}
S60AudioEncoderControl::S60AudioEncoderControl(QObject *session, QObject *parent)
:QAudioEncoderControl(parent), m_quality(QtMultimediaKit::NormalQuality)
{
m_session = qobject_cast<S60AudioCaptureSession*>(session);
QAudioFormat fmt = m_session->format();
// medium, 22050Hz mono S16
fmt.setSampleType(QAudioFormat::SignedInt);
if (fmt.codec().compare("PCM", Qt::CaseInsensitive) == 0) {
fmt.setSampleSize(16);
fmt.setFrequency(22050);
}
fmt.setChannels(1);
m_session->setFormat(fmt);
m_settings.setChannelCount(fmt.channels());
m_settings.setCodec(fmt.codec());
m_settings.setSampleRate(fmt.sampleRate());
}
void EQAlgorithm::gatherData()
{
this->file = Core::autoEQCore->mainWin->fileNames;
this->file.open(QIODevice::ReadWrite);
this->fftInput = file.readAll();
this->file.close();
QAudioFormat format;
this->fftOutput = new QAudioBuffer(fftInput, format.codec(), 0);
}
bool QAudioDeviceInfoInternal::isFormatSupported(const QAudioFormat& format) const
{
QAudioDeviceInfoInternal *self = const_cast<QAudioDeviceInfoInternal*>(this);
return format.isValid()
&& format.codec() == QString::fromLatin1("audio/pcm")
&& self->supportedSampleRates().contains(format.sampleRate())
&& self->supportedChannelCounts().contains(format.channelCount())
&& self->supportedSampleSizes().contains(format.sampleSize());
}
bool Lockin2::isFormatSupported(const QAudioFormat &format)
{
if (format.codec() != "audio/pcm") {
return false;
}
if (format.channelCount() != 2) {
return false;
}
return true;
}
QDebug operator<<(QDebug dbg, const QAudioFormat &f)
{
dbg.nospace() << "QAudioFormat(" << f.sampleRate();
dbg.nospace() << "Hz, " << f.sampleSize();
dbg.nospace() << "bit, channelCount=" << f.channelCount();
dbg.nospace() << ", sampleType=" << f.sampleType();
dbg.nospace() << ", byteOrder=" << f.byteOrder();
dbg.nospace() << ", codec=" << f.codec();
dbg.nospace() << ")";
return dbg.space();
}
bool QAudioDeviceInfoInternal::isFormatSupported(
const QAudioFormat &format) const
{
getSupportedFormats();
const bool supported =
m_codecs.contains(format.codec())
&& m_frequencies.contains(format.frequency())
&& m_channels.contains(format.channels())
&& m_sampleSizes.contains(format.sampleSize())
&& m_byteOrders.contains(format.byteOrder())
&& m_sampleTypes.contains(format.sampleType());
return supported;
}
QT_BEGIN_NAMESPACE
// Debugging
QDebug operator<<(QDebug dbg, const QAudioFormat& audioFormat)
{
dbg.nospace() << "QAudioFormat(" <<
audioFormat.frequency() << "," <<
audioFormat.channels() << "," <<
audioFormat.sampleSize()<< "," <<
audioFormat.codec() << "," <<
audioFormat.byteOrder() << "," <<
audioFormat.sampleType() << ")";
return dbg.space();
}
bool isFormatSupported(const QAudioFormat &formatQt,
const DevSoundCapabilities &caps) {
TMMFCapabilities formatNative;
TUint32 fourCC;
bool result = false;
if (formatQt.codec() == "audio/pcm" &&
formatQtToNative(formatQt, fourCC, formatNative)) {
result =
(formatNative.iRate & caps.caps().iRate)
&& (formatNative.iChannels & caps.caps().iChannels)
&& (caps.fourCC().Find(fourCC) != KErrNotFound);
}
return result;
}
void AudioTest::test()
{
// tries to set all the settings picked.
logOutput->clear();
logOutput->append("NOTE: an invalid codec audio/test exists for testing, to get a fail condition.");
if (!deviceInfo.isNull()) {
if (deviceInfo.isFormatSupported(settings)) {
logOutput->append(tr("Success"));
nearestFreq->setText("");
nearestChannel->setText("");
nearestCodec->setText("");
nearestSampleSize->setText("");
nearestSampleType->setText("");
nearestEndian->setText("");
} else {
QAudioFormat nearest = deviceInfo.nearestFormat(settings);
logOutput->append(tr("Failed"));
nearestFreq->setText(QString("%1").arg(nearest.frequency()));
nearestChannel->setText(QString("%1").arg(nearest.channels()));
nearestCodec->setText(nearest.codec());
nearestSampleSize->setText(QString("%1").arg(nearest.sampleSize()));
switch(nearest.sampleType()) {
case QAudioFormat::SignedInt:
nearestSampleType->setText("SignedInt");
break;
case QAudioFormat::UnSignedInt:
nearestSampleType->setText("UnSignedInt");
break;
case QAudioFormat::Float:
nearestSampleType->setText("Float");
break;
case QAudioFormat::Unknown:
nearestSampleType->setText("Unknown");
}
switch(nearest.byteOrder()) {
case QAudioFormat::LittleEndian:
nearestEndian->setText("LittleEndian");
break;
case QAudioFormat::BigEndian:
nearestEndian->setText("BigEndian");
}
}
}
else
logOutput->append(tr("No Device"));
}
// This function returns the maximum possible sample value for a given audio format
qreal getPeakValue(const QAudioFormat& format)
{
// Note: Only the most common sample formats are supported
if (!format.isValid())
return qreal(0);
if (format.codec() != "audio/pcm")
return qreal(0);
switch (format.sampleType()) {
case QAudioFormat::Unknown:
break;
case QAudioFormat::Float:
if (format.sampleSize() != 32) // other sample formats are not supported
return qreal(0);
return qreal(1.00003);
case QAudioFormat::SignedInt:
if (format.sampleSize() == 32)
return qreal(INT_MAX);
if (format.sampleSize() == 16)
return qreal(SHRT_MAX);
if (format.sampleSize() == 8)
return qreal(CHAR_MAX);
break;
case QAudioFormat::UnSignedInt:
if (format.sampleSize() == 32)
return qreal(UINT_MAX);
if (format.sampleSize() == 16)
return qreal(USHRT_MAX);
if (format.sampleSize() == 8)
return qreal(UCHAR_MAX);
break;
}
return qreal(0);
}
bool QAlsaAudioDeviceInfo::testSettings(const QAudioFormat& format) const
{
// Set nearest to closest settings that do work.
// See if what is in settings will work (return value).
int err = -1;
snd_pcm_t* pcmHandle;
snd_pcm_hw_params_t *params;
QString dev;
#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
dev = device;
if (dev.compare(QLatin1String("default")) == 0) {
QList<QByteArray> devices = availableDevices(QAudio::AudioOutput);
if (!devices.isEmpty())
dev = QLatin1String(devices.first().constData());
}
#else
if (dev.compare(QLatin1String("default")) == 0) {
dev = QLatin1String("hw:0,0");
} else {
int idx = 0;
char *name;
QString shortName = device.mid(device.indexOf(QLatin1String("="),0)+1);
while(snd_card_get_name(idx,&name) == 0) {
if(shortName.compare(QLatin1String(name)) == 0)
break;
idx++;
}
dev = QString(QLatin1String("hw:%1,0")).arg(idx);
}
#endif
snd_pcm_stream_t stream = mode == QAudio::AudioOutput
? SND_PCM_STREAM_PLAYBACK : SND_PCM_STREAM_CAPTURE;
if (snd_pcm_open(&pcmHandle, dev.toLocal8Bit().constData(), stream, 0) < 0)
return false;
snd_pcm_nonblock(pcmHandle, 0);
snd_pcm_hw_params_alloca(¶ms);
snd_pcm_hw_params_any(pcmHandle, params);
// set the values!
snd_pcm_hw_params_set_channels(pcmHandle, params, format.channelCount());
snd_pcm_hw_params_set_rate(pcmHandle, params, format.sampleRate(), 0);
snd_pcm_format_t pcmFormat = SND_PCM_FORMAT_UNKNOWN;
switch (format.sampleSize()) {
case 8:
if (format.sampleType() == QAudioFormat::SignedInt)
pcmFormat = SND_PCM_FORMAT_S8;
else if (format.sampleType() == QAudioFormat::UnSignedInt)
pcmFormat = SND_PCM_FORMAT_U8;
break;
case 16:
if (format.sampleType() == QAudioFormat::SignedInt) {
pcmFormat = format.byteOrder() == QAudioFormat::LittleEndian
? SND_PCM_FORMAT_S16_LE : SND_PCM_FORMAT_S16_BE;
} else if (format.sampleType() == QAudioFormat::UnSignedInt) {
pcmFormat = format.byteOrder() == QAudioFormat::LittleEndian
? SND_PCM_FORMAT_U16_LE : SND_PCM_FORMAT_U16_BE;
}
break;
case 32:
if (format.sampleType() == QAudioFormat::SignedInt) {
pcmFormat = format.byteOrder() == QAudioFormat::LittleEndian
? SND_PCM_FORMAT_S32_LE : SND_PCM_FORMAT_S32_BE;
} else if (format.sampleType() == QAudioFormat::UnSignedInt) {
pcmFormat = format.byteOrder() == QAudioFormat::LittleEndian
? SND_PCM_FORMAT_U32_LE : SND_PCM_FORMAT_U32_BE;
} else if (format.sampleType() == QAudioFormat::Float) {
pcmFormat = format.byteOrder() == QAudioFormat::LittleEndian
? SND_PCM_FORMAT_FLOAT_LE : SND_PCM_FORMAT_FLOAT_BE;
}
}
if (pcmFormat != SND_PCM_FORMAT_UNKNOWN)
err = snd_pcm_hw_params_set_format(pcmHandle, params, pcmFormat);
// For now, just accept only audio/pcm codec
if (!format.codec().startsWith(QLatin1String("audio/pcm")))
err = -1;
if (err >= 0 && format.channelCount() != -1) {
err = snd_pcm_hw_params_test_channels(pcmHandle, params, format.channelCount());
if (err >= 0)
err = snd_pcm_hw_params_set_channels(pcmHandle, params, format.channelCount());
}
if (err >= 0 && format.sampleRate() != -1) {
err = snd_pcm_hw_params_test_rate(pcmHandle, params, format.sampleRate(), 0);
if (err >= 0)
err = snd_pcm_hw_params_set_rate(pcmHandle, params, format.sampleRate(), 0);
}
if (err >= 0 && pcmFormat != SND_PCM_FORMAT_UNKNOWN)
err = snd_pcm_hw_params_set_format(pcmHandle, params, pcmFormat);
if (err >= 0)
err = snd_pcm_hw_params(pcmHandle, params);
snd_pcm_close(pcmHandle);
return (err == 0);
}
bool isPCM(const QAudioFormat &format)
{
return (format.codec() == "audio/pcm");
}
bool QAudioDeviceInfoInternal::testSettings(const QAudioFormat& format) const
{
// Set nearest to closest settings that do work.
// See if what is in settings will work (return value).
int err = 0;
snd_pcm_t* handle;
snd_pcm_hw_params_t *params;
QString dev = device;
QList<QByteArray> devices = QAudioDeviceInfoInternal::availableDevices(QAudio::AudioOutput);
if(dev.compare(QLatin1String("default")) == 0) {
#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
dev = QLatin1String(devices.first().constData());
#else
dev = QLatin1String("hw:0,0");
#endif
} else {
#if(SND_LIB_MAJOR == 1 && SND_LIB_MINOR == 0 && SND_LIB_SUBMINOR >= 14)
dev = device;
#else
int idx = 0;
char *name;
QString shortName = device.mid(device.indexOf(QLatin1String("="),0)+1);
while(snd_card_get_name(idx,&name) == 0) {
if(shortName.compare(QLatin1String(name)) == 0)
break;
idx++;
}
dev = QString(QLatin1String("hw:%1,0")).arg(idx);
#endif
}
if(mode == QAudio::AudioOutput) {
err=snd_pcm_open( &handle,dev.toLocal8Bit().constData(),SND_PCM_STREAM_PLAYBACK,0);
} else {
err=snd_pcm_open( &handle,dev.toLocal8Bit().constData(),SND_PCM_STREAM_CAPTURE,0);
}
if(err < 0) {
handle = 0;
return false;
}
bool testChannel = false;
bool testCodec = false;
bool testFreq = false;
bool testType = false;
bool testSize = false;
int dir = 0;
snd_pcm_nonblock( handle, 0 );
snd_pcm_hw_params_alloca( ¶ms );
snd_pcm_hw_params_any( handle, params );
// set the values!
snd_pcm_hw_params_set_channels(handle,params,format.channels());
snd_pcm_hw_params_set_rate(handle,params,format.frequency(),dir);
err = -1;
switch(format.sampleSize()) {
case 8:
if(format.sampleType() == QAudioFormat::SignedInt)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S8);
else if(format.sampleType() == QAudioFormat::UnSignedInt)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U8);
break;
case 16:
if(format.sampleType() == QAudioFormat::SignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_BE);
} else if(format.sampleType() == QAudioFormat::UnSignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_BE);
}
break;
case 32:
if(format.sampleType() == QAudioFormat::SignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_BE);
} else if(format.sampleType() == QAudioFormat::UnSignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_BE);
}
}
// For now, just accept only audio/pcm codec
if(!format.codec().startsWith(QLatin1String("audio/pcm"))) {
err=-1;
} else
testCodec = true;
if(err>=0 && format.channels() != -1) {
err = snd_pcm_hw_params_test_channels(handle,params,format.channels());
if(err>=0)
err = snd_pcm_hw_params_set_channels(handle,params,format.channels());
if(err>=0)
testChannel = true;
}
if(err>=0 && format.frequency() != -1) {
err = snd_pcm_hw_params_test_rate(handle,params,format.frequency(),0);
if(err>=0)
err = snd_pcm_hw_params_set_rate(handle,params,format.frequency(),dir);
if(err>=0)
testFreq = true;
}
if((err>=0 && format.sampleSize() != -1) &&
(format.sampleType() != QAudioFormat::Unknown)) {
switch(format.sampleSize()) {
case 8:
if(format.sampleType() == QAudioFormat::SignedInt)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S8);
else if(format.sampleType() == QAudioFormat::UnSignedInt)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U8);
break;
case 16:
if(format.sampleType() == QAudioFormat::SignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_BE);
} else if(format.sampleType() == QAudioFormat::UnSignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_BE);
}
break;
case 32:
if(format.sampleType() == QAudioFormat::SignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_BE);
} else if(format.sampleType() == QAudioFormat::UnSignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_BE);
}
}
if(err>=0) {
testSize = true;
testType = true;
}
}
if(err>=0)
err = snd_pcm_hw_params(handle, params);
if(err == 0) {
// settings work
// close()
if(handle)
snd_pcm_close(handle);
return true;
}
if(handle)
snd_pcm_close(handle);
return false;
}
bool QAudioDeviceInfoInternal::testSettings(const QAudioFormat& format) const
{
// Set nearest to closest settings that do work.
// See if what is in settings will work (return value).
bool failed = false;
bool match = false;
// check codec
for( int i = 0; i < codecz.count(); i++) {
if (format.codec() == codecz.at(i))
match = true;
}
if (!match) failed = true;
// check channel
match = false;
if (!failed) {
for( int i = 0; i < channelz.count(); i++) {
if (format.channels() == channelz.at(i)) {
match = true;
break;
}
}
if (!match)
failed = true;
}
// check frequency
match = false;
if (!failed) {
for( int i = 0; i < freqz.count(); i++) {
if (format.frequency() == freqz.at(i)) {
match = true;
break;
}
}
if (!match)
failed = true;
}
// check sample size
match = false;
if (!failed) {
for( int i = 0; i < sizez.count(); i++) {
if (format.sampleSize() == sizez.at(i)) {
match = true;
break;
}
}
if (!match)
failed = true;
}
// check byte order
match = false;
if (!failed) {
for( int i = 0; i < byteOrderz.count(); i++) {
if (format.byteOrder() == byteOrderz.at(i)) {
match = true;
break;
}
}
if (!match)
failed = true;
}
// check sample type
match = false;
if (!failed) {
for( int i = 0; i < typez.count(); i++) {
if (format.sampleType() == typez.at(i)) {
match = true;
break;
}
}
if (!match)
failed = true;
}
if(!failed) {
// settings work
return true;
}
return false;
}
bool QAudioDeviceInfoInternal::testSettings(const QAudioFormat& format) const
{
// Set nearest to closest settings that do work.
// See if what is in settings will work (return value).
int err = 0;
snd_pcm_t* handle;
snd_pcm_hw_params_t *params;
QString dev = device;
// open()
if(!dev.contains(QLatin1String("default"))) {
int idx = snd_card_get_index(dev.toLocal8Bit().constData());
dev = QString(QLatin1String("hw:%1,0")).arg(idx);
}
if(mode == QAudio::AudioOutput) {
err=snd_pcm_open( &handle,dev.toLocal8Bit().constData(),SND_PCM_STREAM_PLAYBACK,0);
} else {
err=snd_pcm_open( &handle,dev.toLocal8Bit().constData(),SND_PCM_STREAM_CAPTURE,0);
}
if(err < 0) {
handle = 0;
return false;
}
bool testChannel = false;
bool testCodec = false;
bool testFreq = false;
bool testType = false;
bool testSize = false;
int dir = 0;
snd_pcm_nonblock( handle, 0 );
snd_pcm_hw_params_alloca( ¶ms );
snd_pcm_hw_params_any( handle, params );
// set the values!
snd_pcm_hw_params_set_channels(handle,params,format.channels());
snd_pcm_hw_params_set_rate(handle,params,format.frequency(),dir);
switch(format.sampleSize()) {
case 8:
if(format.sampleType() == QAudioFormat::SignedInt)
snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S8);
else if(format.sampleType() == QAudioFormat::UnSignedInt)
snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U8);
break;
case 16:
if(format.sampleType() == QAudioFormat::SignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_BE);
} else if(format.sampleType() == QAudioFormat::UnSignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_BE);
}
break;
case 32:
if(format.sampleType() == QAudioFormat::SignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_BE);
} else if(format.sampleType() == QAudioFormat::UnSignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_BE);
}
}
// For now, just accept only audio/pcm codec
if(!format.codec().startsWith(QLatin1String("audio/pcm"))) {
err=-1;
} else
testCodec = true;
if(err>=0 && format.channels() != -1) {
err = snd_pcm_hw_params_test_channels(handle,params,format.channels());
if(err>=0)
err = snd_pcm_hw_params_set_channels(handle,params,format.channels());
if(err>=0)
testChannel = true;
}
if(err>=0 && format.frequency() != -1) {
err = snd_pcm_hw_params_test_rate(handle,params,format.frequency(),0);
if(err>=0)
err = snd_pcm_hw_params_set_rate(handle,params,format.frequency(),dir);
if(err>=0)
testFreq = true;
}
if((err>=0 && format.sampleSize() != -1) &&
(format.sampleType() != QAudioFormat::Unknown)) {
switch(format.sampleSize()) {
case 8:
if(format.sampleType() == QAudioFormat::SignedInt)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S8);
else if(format.sampleType() == QAudioFormat::UnSignedInt)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U8);
break;
case 16:
if(format.sampleType() == QAudioFormat::SignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S16_BE);
} else if(format.sampleType() == QAudioFormat::UnSignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U16_BE);
}
break;
case 32:
if(format.sampleType() == QAudioFormat::SignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_S32_BE);
} else if(format.sampleType() == QAudioFormat::UnSignedInt) {
if(format.byteOrder() == QAudioFormat::LittleEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_LE);
else if(format.byteOrder() == QAudioFormat::BigEndian)
err = snd_pcm_hw_params_set_format(handle,params,SND_PCM_FORMAT_U32_BE);
}
}
if(err>=0) {
testSize = true;
testType = true;
}
}
if(err>=0)
err = snd_pcm_hw_params(handle, params);
if(err == 0) {
// settings work
// close()
if(handle)
snd_pcm_close(handle);
return true;
}
if(handle)
snd_pcm_close(handle);
return false;
}
void tst_QAudioFormat::checkCodec()
{
QAudioFormat audioFormat;
audioFormat.setCodec(QString::fromLatin1("audio/pcm"));
QVERIFY(audioFormat.codec() == QString::fromLatin1("audio/pcm"));
}
void QOggSimplePlayer::open()
{
QMutexLocker mutexLocker(&mutex);
if(!QFile(filePath).exists())
return;
QAudioFormat format;
format.setSampleRate(48000);
format.setChannelCount(1);
format.setSampleSize(16);
format.setCodec("audio/pcm");
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::SignedInt);
int returnCode=ov_fopen(QDir::toNativeSeparators(filePath).toLocal8Bit().data(), &vf);
if(returnCode < 0)
{
qDebug() << "Input does not appear to be an Ogg bitstream for " << QDir::toNativeSeparators(filePath) << ", return code: " << returnCode;
ov_clear(&vf);
return;
}
{
char **ptr=ov_comment(&vf,-1)->user_comments;
vorbis_info *vi=ov_info(&vf,-1);
while(*ptr){
fprintf(stderr,"%s\n",*ptr);
++ptr;
}
qDebug() << QString("Bitstream is %1 channel, %2Hz").arg(vi->channels).arg(vi->rate);
qDebug() << QString("Encoded by: %1").arg(ov_comment(&vf,-1)->vendor);
qDebug() << QString("Play on: %1").arg(QAudioDeviceInfo::defaultOutputDevice().deviceName());
format.setChannelCount(vi->channels);
format.setSampleRate(vi->rate);
}
if(format.channelCount()!=1)
{
qDebug() << "Only mono sound is supported due to a bug";
ov_clear(&vf);
return;
}
QAudioDeviceInfo info(QAudioDeviceInfo::defaultOutputDevice());
if (!info.isFormatSupported(format)) {
qDebug() << QString("raw audio format not supported by backend, cannot play audio: SampleRate: %1, ChannelCount: %2, SampleSize: %3, Codec: %4, ByteOrder: %5, SampleType: %6")
.arg(format.sampleRate())
.arg(format.channelCount())
.arg(format.sampleSize())
.arg(format.codec())
.arg(format.byteOrder())
.arg(format.sampleType())
;
QAudioFormat preferedFormat=info.preferredFormat();
qDebug() << QString("prefered format: SampleRate: %1, ChannelCount: %2, SampleSize: %3, Codec: %4, ByteOrder: %5, SampleType: %6")
.arg(preferedFormat.sampleRate())
.arg(preferedFormat.channelCount())
.arg(preferedFormat.sampleSize())
.arg(preferedFormat.codec())
.arg(preferedFormat.byteOrder())
.arg(preferedFormat.sampleType())
;
QAudioFormat nearestFormat=info.nearestFormat(format);
qDebug() << QString("nearest format: SampleRate: %1, ChannelCount: %2, SampleSize: %3, Codec: %4, ByteOrder: %5, SampleType: %6")
.arg(nearestFormat.sampleRate())
.arg(nearestFormat.channelCount())
.arg(nearestFormat.sampleSize())
.arg(nearestFormat.codec())
.arg(nearestFormat.byteOrder())
.arg(nearestFormat.sampleType())
;
ov_clear(&vf);
return;
}
if(output!=NULL)
delete output;
output = new QAudioOutput(format);
output->setVolume(volume);
output->setBufferSize(4096);
connect(output,&QAudioOutput::stateChanged,this,&QOggSimplePlayer::finishedPlaying,Qt::QueuedConnection);
if(needPlay)
start();
}
