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Ref T730, also return an output device if there is no exact match

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This commit is contained in:
Klaus Basan
2019-10-02 19:54:02 +02:00
committed by Mat Sutcliffe
parent 5d9ea83b93
commit 89725c3bb4
1 changed files with 26 additions and 16 deletions
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42
src/blacksound/audioutilities.cpp
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@@ -23,7 +23,7 @@ namespace BlackSound
for (int n = 0; n < inputSamples; n++)
{
output[n] = *reinterpret_cast<const qint16 *>(input.data() + n * 2);
output[n] /= 32767.0;
output[n] /= 32767.0f;
}
return output;
}
@@ -75,7 +75,7 @@ namespace BlackSound
QVector<float> output;
for (auto sample : input)
{
output.push_back(sample / 32768.0);
output.push_back(sample / 32768.0f);
}
return output;
}
@@ -88,7 +88,7 @@ namespace BlackSound
else { return QAudioDeviceInfo::defaultOutputDevice(); }
}
QAudio::Mode mode = device.getType() == CAudioDeviceInfo::InputDevice ? QAudio::AudioInput : QAudio::AudioOutput;
QAudio::Mode mode = (device.getType() == CAudioDeviceInfo::InputDevice) ? QAudio::AudioInput : QAudio::AudioOutput;
const QList<QAudioDeviceInfo> allQtDevices = QAudioDeviceInfo::availableDevices(mode);
// Find the one with lowest latency.
@@ -97,15 +97,15 @@ namespace BlackSound
{
if (d.deviceName() == device.getName())
{
if (! d.isFormatSupported(format))
if (!d.isFormatSupported(format))
{
// Check whether the nearest format is acceptable for our needs
QAudioFormat nearestFormat = d.nearestFormat(format);
if (nearestFormat.sampleRate() != format.sampleRate() ||
const QAudioFormat nearestFormat = d.nearestFormat(format);
if (nearestFormat.sampleRate() != format.sampleRate() ||
nearestFormat.sampleSize() != format.sampleSize() ||
nearestFormat.sampleType() != format.sampleType() ||
nearestFormat.byteOrder() != format.byteOrder() ||
nearestFormat.codec() != format.codec())
nearestFormat.byteOrder() != format.byteOrder() ||
nearestFormat.codec() != format.codec())
{
continue;
}
@@ -155,7 +155,6 @@ namespace BlackSound
QAudioDeviceInfo getHighestCompatibleOutputDevice(const CAudioDeviceInfo &device, QAudioFormat &format)
{
if (device.isDefault()) { return QAudioDeviceInfo::defaultOutputDevice(); }
const QList<QAudioDeviceInfo> allQtDevices = QAudioDeviceInfo::availableDevices(QAudio::AudioOutput);
QList<QAudioDeviceInfo> supportedDevices;
@@ -163,15 +162,26 @@ namespace BlackSound
{
if (d.deviceName() == device.getName())
{
if (d.isFormatSupported(format))
{
supportedDevices.push_back(d);
}
// exact match, format supported
if (d.isFormatSupported(format)) { return d; }
}
if (supportedDevices.size() > 0) { return supportedDevices.at(0); }
supportedDevices.push_back(d);
}
return {};
// no suitable device
if (supportedDevices.isEmpty())
{
format = QAudioFormat();
return QAudioDeviceInfo();
}
// here we could "search the best device", currently only first is taken
QAudioDeviceInfo usedDevice = supportedDevices.front();
if (!usedDevice.isFormatSupported(format))
{
format = usedDevice.nearestFormat(format);
}
return usedDevice;
}
} // ns