[AFV] Select audio device based on situational need

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

View File

@@ -19,6 +19,7 @@
#include <cmath>
using namespace BlackMisc;
using namespace BlackMisc::Audio;
using namespace BlackSound;
namespace BlackCore
@@ -27,6 +28,7 @@ namespace BlackCore
{
namespace Audio
{
CAudioInputBuffer::CAudioInputBuffer(QObject *parent) :
QIODevice(parent)
{}
@@ -34,7 +36,6 @@ namespace BlackCore
void CAudioInputBuffer::start()
{
open(QIODevice::WriteOnly | QIODevice::Unbuffered);
// m_timerId = startTimer(5, Qt::PreciseTimer);
}
void CAudioInputBuffer::stop()
@@ -91,28 +92,11 @@ namespace BlackCore
m_encoder.setBitRate(16 * 1024);
}
void CInput::start(const BlackMisc::Audio::CAudioDeviceInfo &inputDevice)
void CInput::start(const CAudioDeviceInfo &inputDevice)
{
if (m_started) { return; }
m_device = inputDevice;
QAudioDeviceInfo selectedDevice;
if (inputDevice.isDefault())
{
selectedDevice = QAudioDeviceInfo::defaultInputDevice();
}
else
{
// TODO: Add smart algorithm to find the device with lowest latency
const QList<QAudioDeviceInfo> inputDevices = QAudioDeviceInfo::availableDevices(QAudio::AudioInput);
for (const QAudioDeviceInfo &d : inputDevices)
{
if (d.deviceName() == inputDevice.getName())
{
selectedDevice = d;
}
}
}
m_inputFormat.setSampleRate(m_sampleRate);
m_inputFormat.setChannelCount(1);
@@ -120,21 +104,8 @@ namespace BlackCore
m_inputFormat.setSampleType(QAudioFormat::SignedInt);
m_inputFormat.setByteOrder(QAudioFormat::LittleEndian);
m_inputFormat.setCodec("audio/pcm");
if (!selectedDevice.isFormatSupported(m_inputFormat))
{
m_inputFormat = selectedDevice.nearestFormat(m_inputFormat);
const QString w =
selectedDevice.deviceName() %
": Default INPUT format not supported - trying to use nearest" %
" Sample rate: " % QString::number(m_inputFormat.sampleRate()) %
" Sample size: " % QString::number(m_inputFormat.sampleSize()) %
" Sample type: " % QString::number(m_inputFormat.sampleType()) %
" Byte order: " % QString::number(m_inputFormat.byteOrder()) %
" Codec: " % m_inputFormat.codec() %
" Channel count: " % QString::number(m_inputFormat.channelCount());
CLogMessage(this).warning(w);
}
QAudioDeviceInfo selectedDevice = getLowestLatencyDevice(inputDevice, m_inputFormat);
m_audioInput.reset(new QAudioInput(selectedDevice, m_inputFormat));
m_audioInputBuffer.start();

View File

@@ -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);