1 files changed, 144 insertions, 0 deletions
diff --git a/demos/mobile/quickhit/ga_src/GEAudioOut.cpp b/demos/mobile/quickhit/ga_src/GEAudioOut.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/qstring.h>
+#include <QAudioOutput>
+
+#include "GEAudioOut.h"
+
+using namespace GE;
+//using namespace QTM_NAMESPACE;
+
+/*
+#ifndef Q_OS_WIN32
+QTM_USE_NAMESPACE
+#endif
+*/
+
+const int CHANNELS = 2;
+const QString CODEC = "audio/pcm";
+const QAudioFormat::Endian BYTEORDER = QAudioFormat::LittleEndian;
+const QAudioFormat::SampleType SAMTYPE = QAudioFormat::SignedInt;
+
+
+
+AudioOut::AudioOut( QObject *parent, GE::IAudioSource *source ) : QThread(parent) {         // qobject
+    m_source = source;
+    QAudioFormat format;
+    format.setFrequency(AUDIO_FREQUENCY);
+    format.setChannels(CHANNELS);
+    format.setSampleSize(AUDIO_SAMPLE_BITS);
+    format.setCodec(CODEC);
+    format.setByteOrder(BYTEORDER);
+    format.setSampleType(SAMTYPE);
+
+    QAudioDeviceInfo info(QAudioDeviceInfo::defaultOutputDevice());
+    if (!info.isFormatSupported(format))
+        format = info.nearestFormat(format);
+
+
+    m_audioOutput = new QAudioOutput(info,format);
+
+#ifdef Q_WS_MAEMO_5
+    m_audioOutput->setBufferSize(20000);
+    m_sendBufferSize = 5000;
+#else
+    m_audioOutput->setBufferSize(16000);
+    m_sendBufferSize = 4000;
+#endif
+
+    m_outTarget = m_audioOutput->start();
+
+
+    m_sendBuffer = new AUDIO_SAMPLE_TYPE[ m_sendBufferSize ];
+    m_samplesMixed = 0;
+
+    m_runstate=0;
+
+#ifndef Q_OS_SYMBIAN
+    start();
+#else
+    m_audioOutput->setNotifyInterval(5);
+    connect(m_audioOutput,SIGNAL(notify()),SLOT(audioNotify()));
+#endif
+
+};
+
+
+AudioOut::~AudioOut() {
+    if (m_runstate==0) m_runstate = 1;
+    if (QThread::isRunning() == false) m_runstate = 2;
+    while (m_runstate!=2) { msleep(50); }       // wait until the thread is finished
+    m_audioOutput->stop();
+    delete m_audioOutput;
+    delete [] m_sendBuffer;
+};
+
+
+void AudioOut::audioNotify() {
+    tick();
+};
+
+void AudioOut::tick() {
+        // fill data to buffer as much as free space is available..
+    int samplesToWrite = m_audioOutput->bytesFree() / (CHANNELS*AUDIO_SAMPLE_BITS/8);
+    samplesToWrite*=2;
+
+    if (samplesToWrite > m_sendBufferSize) samplesToWrite = m_sendBufferSize;
+    if (samplesToWrite<=0) return;
+    int mixedSamples = m_source->pullAudio( m_sendBuffer, samplesToWrite );
+    m_outTarget->write( (char*)m_sendBuffer, mixedSamples*2 );
+
+};
+
+
+void AudioOut::run() {
+    if (!m_source) { m_runstate=2; return; }
+    int sleepTime = m_sendBufferSize * 340 / AUDIO_FREQUENCY;
+    if (sleepTime<2) sleepTime = 2;
+
+    while (m_runstate==0) {
+        tick();
+        msleep(sleepTime);
+    };
+    m_runstate = 2;
+};
+
+