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[AFV] Select audio device based on situational need

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For AFV itself, a low latency device is required (which on Windows most likely will pick WASAPI).
For notifications and effects, the most compatible device is required (which on Windows will most likely fall back to QWindowsAudio).
This commit is contained in:
Roland Rossgotterer
2019-10-02 17:09:15 +02:00
committed by Mat Sutcliffe
parent 18ec101391
commit 90e87835fc
5 changed files with 119 additions and 95 deletions
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34
src/blackcore/afv/audio/output.cpp
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@@ -90,23 +90,6 @@ namespace BlackCore
connect(m_audioOutputBuffer, &CAudioOutputBuffer::outputVolumeStream, this, &Output::outputVolumeStream);
m_device = outputDevice;
QAudioDeviceInfo selectedDevice;
if (outputDevice.isDefault())
{
selectedDevice = QAudioDeviceInfo::defaultOutputDevice();
}
else
{
// TODO: Add smart algorithm to find the device with lowest latency
const QList<QAudioDeviceInfo> outputDevices = QAudioDeviceInfo::availableDevices(QAudio::AudioOutput);
for (const QAudioDeviceInfo &d : outputDevices)
{
if (d.deviceName() == outputDevice.getName())
{
selectedDevice = d;
}
}
}
QAudioFormat outputFormat;
outputFormat.setSampleRate(48000);
@@ -116,23 +99,8 @@ namespace BlackCore
outputFormat.setByteOrder(QAudioFormat::LittleEndian);
outputFormat.setCodec("audio/pcm");
if (!selectedDevice.isFormatSupported(outputFormat))
{
outputFormat = selectedDevice.nearestFormat(outputFormat);
const QString w =
selectedDevice.deviceName() %
": Default OUTPUT format not supported - trying to use nearest" %
" Sample rate: " % QString::number(outputFormat.sampleRate()) %
" Sample size: " % QString::number(outputFormat.sampleSize()) %
" Sample type: " % QString::number(outputFormat.sampleType()) %
" Byte order: " % QString::number(outputFormat.byteOrder()) %
" Codec: " % outputFormat.codec() %
" Channel count: " % QString::number(outputFormat.channelCount());
CLogMessage(this).warning(w);
}
QAudioDeviceInfo selectedDevice = getLowestLatencyDevice(outputDevice, outputFormat);
m_audioOutputCom.reset(new QAudioOutput(selectedDevice, outputFormat));
// m_audioOutput->setBufferSize(bufferSize);
m_audioOutputBuffer->open(QIODevice::ReadWrite | QIODevice::Unbuffered);
m_audioOutputBuffer->setAudioFormat(outputFormat);
m_audioOutputCom->start(m_audioOutputBuffer);