145 lines
4.4 KiB
C++
145 lines
4.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtDeclarative module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtCore/qstring.h>
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#include <QAudioOutput>
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#include "GEAudioOut.h"
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using namespace GE;
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//using namespace QTM_NAMESPACE;
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/*
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#ifndef Q_OS_WIN32
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QTM_USE_NAMESPACE
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#endif
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*/
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const int CHANNELS = 2;
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const QString CODEC = "audio/pcm";
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const QAudioFormat::Endian BYTEORDER = QAudioFormat::LittleEndian;
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const QAudioFormat::SampleType SAMTYPE = QAudioFormat::SignedInt;
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AudioOut::AudioOut( QObject *parent, GE::IAudioSource *source ) : QThread(parent) { // qobject
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m_source = source;
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QAudioFormat format;
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format.setFrequency(AUDIO_FREQUENCY);
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format.setChannels(CHANNELS);
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format.setSampleSize(AUDIO_SAMPLE_BITS);
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format.setCodec(CODEC);
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format.setByteOrder(BYTEORDER);
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format.setSampleType(SAMTYPE);
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QAudioDeviceInfo info(QAudioDeviceInfo::defaultOutputDevice());
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if (!info.isFormatSupported(format))
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format = info.nearestFormat(format);
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m_audioOutput = new QAudioOutput(info,format);
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#ifdef Q_WS_MAEMO_5
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m_audioOutput->setBufferSize(20000);
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m_sendBufferSize = 5000;
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#else
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m_audioOutput->setBufferSize(16000);
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m_sendBufferSize = 4000;
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#endif
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m_outTarget = m_audioOutput->start();
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m_sendBuffer = new AUDIO_SAMPLE_TYPE[ m_sendBufferSize ];
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m_samplesMixed = 0;
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m_runstate=0;
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#ifndef Q_OS_SYMBIAN
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start();
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#else
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m_audioOutput->setNotifyInterval(5);
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connect(m_audioOutput,SIGNAL(notify()),SLOT(audioNotify()));
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#endif
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};
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AudioOut::~AudioOut() {
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if (m_runstate==0) m_runstate = 1;
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if (QThread::isRunning() == false) m_runstate = 2;
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while (m_runstate!=2) { msleep(50); } // wait until the thread is finished
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m_audioOutput->stop();
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delete m_audioOutput;
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delete [] m_sendBuffer;
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};
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void AudioOut::audioNotify() {
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tick();
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};
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void AudioOut::tick() {
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// fill data to buffer as much as free space is available..
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int samplesToWrite = m_audioOutput->bytesFree() / (CHANNELS*AUDIO_SAMPLE_BITS/8);
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samplesToWrite*=2;
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if (samplesToWrite > m_sendBufferSize) samplesToWrite = m_sendBufferSize;
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if (samplesToWrite<=0) return;
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int mixedSamples = m_source->pullAudio( m_sendBuffer, samplesToWrite );
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m_outTarget->write( (char*)m_sendBuffer, mixedSamples*2 );
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};
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void AudioOut::run() {
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if (!m_source) { m_runstate=2; return; }
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int sleepTime = m_sendBufferSize * 340 / AUDIO_FREQUENCY;
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if (sleepTime<2) sleepTime = 2;
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while (m_runstate==0) {
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tick();
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msleep(sleepTime);
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};
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m_runstate = 2;
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};
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