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#include "soundout.h"
#include <QDateTime>
#include <QAudioDeviceInfo>
#include <QAudioOutput>
#include <QSysInfo>
#include <qmath.h>
#include <QDebug>
#include "Logger.hpp"
#include "Audio/AudioDevice.hpp"
#include "moc_soundout.cpp"
bool SoundOutput::checkStream () const
{
bool result {false};
Q_ASSERT_X (m_stream, "SoundOutput", "programming error");
if (m_stream) {
switch (m_stream->error ())
{
case QAudio::OpenError:
Q_EMIT error (tr ("An error opening the audio output device has occurred."));
break;
case QAudio::IOError:
Q_EMIT error (tr ("An error occurred during write to the audio output device."));
break;
case QAudio::UnderrunError:
Q_EMIT error (tr ("Audio data not being fed to the audio output device fast enough."));
break;
case QAudio::FatalError:
Q_EMIT error (tr ("Non-recoverable error, audio output device not usable at this time."));
break;
case QAudio::NoError:
result = true;
break;
}
}
return result;
}
void SoundOutput::setFormat (QAudioDeviceInfo const& device, unsigned channels, int frames_buffered)
{
Q_ASSERT (0 < channels && channels < 3);
m_device = device;
m_channels = channels;
m_framesBuffered = frames_buffered;
}
void SoundOutput::restart (QIODevice * source)
{
if (!m_device.isNull ())
{
QAudioFormat format (m_device.preferredFormat ());
// qDebug () << "Preferred audio output format:" << format;
format.setChannelCount (m_channels);
format.setCodec ("audio/pcm");
format.setSampleRate (48000);
format.setSampleType (QAudioFormat::SignedInt);
format.setSampleSize (16);
format.setByteOrder (QAudioFormat::Endian (QSysInfo::ByteOrder));
if (!format.isValid ())
{
Q_EMIT error (tr ("Requested output audio format is not valid."));
}
else if (!m_device.isFormatSupported (format))
{
Q_EMIT error (tr ("Requested output audio format is not supported on device."));
}
else
{
// qDebug () << "Selected audio output format:" << format;
m_stream.reset (new QAudioOutput (m_device, format));
checkStream ();
m_stream->setVolume (m_volume);
m_stream->setNotifyInterval(1000);
error_ = false;
connect (m_stream.data(), &QAudioOutput::stateChanged, this, &SoundOutput::handleStateChanged);
connect (m_stream.data(), &QAudioOutput::notify, [this] () {checkStream ();});
// qDebug() << "A" << m_volume << m_stream->notifyInterval();
}
}
if (!m_stream)
{
if (!error_)
{
error_ = true; // only signal error once
Q_EMIT error (tr ("No audio output device configured."));
}
return;
}
else
{
error_ = false;
}
// we have to set this before every start on the stream because the
// Windows implementation seems to forget the buffer size after a
// stop.
//qDebug () << "SoundOut default buffer size (bytes):" << m_stream->bufferSize () << "period size:" << m_stream->periodSize ();
if (m_framesBuffered > 0)
{
m_stream->setBufferSize (m_stream->format().bytesForFrames (m_framesBuffered));
}
m_stream->setCategory ("production");
m_stream->start (source);
// LOG_DEBUG ("Selected buffer size (bytes): " << m_stream->bufferSize () << " period size: " << m_stream->periodSize ());
}
void SoundOutput::suspend ()
{
if (m_stream && QAudio::ActiveState == m_stream->state ())
{
m_stream->suspend ();
checkStream ();
}
}
void SoundOutput::resume ()
{
if (m_stream && QAudio::SuspendedState == m_stream->state ())
{
m_stream->resume ();
checkStream ();
}
}
void SoundOutput::reset ()
{
if (m_stream)
{
m_stream->reset ();
checkStream ();
}
}
void SoundOutput::stop ()
{
if (m_stream)
{
m_stream->reset ();
m_stream->stop ();
}
m_stream.reset ();
}
qreal SoundOutput::attenuation () const
{
return -(20. * qLn (m_volume) / qLn (10.));
}
void SoundOutput::setAttenuation (qreal a)
{
Q_ASSERT (0. <= a && a <= 999.);
m_volume = qPow(10.0, -a/20.0);
// qDebug () << "SoundOut: attn = " << a << ", vol = " << m_volume;
if (m_stream)
{
m_stream->setVolume (m_volume);
}
}
void SoundOutput::resetAttenuation ()
{
m_volume = 1.;
if (m_stream)
{
m_stream->setVolume (m_volume);
}
}
void SoundOutput::handleStateChanged (QAudio::State newState)
{
switch (newState)
{
case QAudio::IdleState:
Q_EMIT status (tr ("Idle"));
break;
case QAudio::ActiveState:
Q_EMIT status (tr ("Sending"));
break;
case QAudio::SuspendedState:
Q_EMIT status (tr ("Suspended"));
break;
#if QT_VERSION >= QT_VERSION_CHECK (5, 10, 0)
case QAudio::InterruptedState:
Q_EMIT status (tr ("Interrupted"));
break;
#endif
case QAudio::StoppedState:
if (!checkStream ())
{
Q_EMIT status (tr ("Error"));
}
else
{
Q_EMIT status (tr ("Stopped"));
}
break;
}
}
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