openauto/src/autoapp/Projection/QtAudioOutput.cpp
2018-03-24 01:04:26 +01:00

127 lines
3.0 KiB
C++

/*
* This file is part of openauto project.
* Copyright (C) 2018 f1x.studio (Michal Szwaj)
*
* openauto is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
* openauto is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with openauto. If not, see <http://www.gnu.org/licenses/>.
*/
#include <QApplication>
#include <f1x/openauto/autoapp/Projection/QtAudioOutput.hpp>
#include <f1x/openauto/Common/Log.hpp>
namespace f1x
{
namespace openauto
{
namespace autoapp
{
namespace projection
{
QtAudioOutput::QtAudioOutput(uint32_t channelCount, uint32_t sampleSize, uint32_t sampleRate)
: playbackStarted_(false)
{
audioFormat_.setChannelCount(channelCount);
audioFormat_.setSampleRate(sampleRate);
audioFormat_.setSampleSize(sampleSize);
audioFormat_.setCodec("audio/pcm");
audioFormat_.setByteOrder(QAudioFormat::LittleEndian);
audioFormat_.setSampleType(QAudioFormat::SignedInt);
this->moveToThread(QApplication::instance()->thread());
connect(this, &QtAudioOutput::startPlayback, this, &QtAudioOutput::onStartPlayback);
connect(this, &QtAudioOutput::suspendPlayback, this, &QtAudioOutput::onSuspendPlayback);
connect(this, &QtAudioOutput::stopPlayback, this, &QtAudioOutput::onStopPlayback);
QMetaObject::invokeMethod(this, "createAudioOutput", Qt::BlockingQueuedConnection);
}
void QtAudioOutput::createAudioOutput()
{
OPENAUTO_LOG(debug) << "[QtAudioOutput] create.";
audioOutput_ = std::make_unique<QAudioOutput>(QAudioDeviceInfo::defaultOutputDevice(), audioFormat_);
}
bool QtAudioOutput::open()
{
return audioBuffer_.open(QIODevice::ReadWrite);
}
void QtAudioOutput::write(const aasdk::common::DataConstBuffer& buffer)
{
audioBuffer_.write(reinterpret_cast<const char*>(buffer.cdata), buffer.size);
}
void QtAudioOutput::start()
{
emit startPlayback();
}
void QtAudioOutput::stop()
{
emit stopPlayback();
}
void QtAudioOutput::suspend()
{
emit suspendPlayback();
}
uint32_t QtAudioOutput::getSampleSize() const
{
return audioFormat_.sampleSize();
}
uint32_t QtAudioOutput::getChannelCount() const
{
return audioFormat_.channelCount();
}
uint32_t QtAudioOutput::getSampleRate() const
{
return audioFormat_.sampleRate();
}
void QtAudioOutput::onStartPlayback()
{
if(!playbackStarted_)
{
audioOutput_->start(&audioBuffer_);
playbackStarted_ = true;
}
else
{
audioOutput_->resume();
}
}
void QtAudioOutput::onSuspendPlayback()
{
audioOutput_->suspend();
}
void QtAudioOutput::onStopPlayback()
{
if(playbackStarted_)
{
audioOutput_->stop();
playbackStarted_ = false;
}
}
}
}
}
}