1 files changed, 145 insertions, 0 deletions
diff --git a/src/multimediakit/audio/qaudio_mac.cpp b/src/multimediakit/audio/qaudio_mac.cpp
new file mode 100644
index 000000000..a13b54c39
--- /dev/null
+++ b/src/multimediakit/audio/qaudio_mac.cpp
@@ -0,0 +1,145 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include "qaudio_mac_p.h"
+
+QT_BEGIN_NAMESPACE
+
+// Debugging
+QDebug operator<<(QDebug dbg, const QAudioFormat& audioFormat)
+{
+    dbg.nospace() << "QAudioFormat(" <<
+            audioFormat.frequency() << "," <<
+            audioFormat.channels() << "," <<
+            audioFormat.sampleSize()<< "," <<
+            audioFormat.codec() << "," <<
+            audioFormat.byteOrder() << "," <<
+            audioFormat.sampleType() << ")";
+
+    return dbg.space();
+}
+
+
+// Conversion
+QAudioFormat toQAudioFormat(AudioStreamBasicDescription const& sf)
+{
+    QAudioFormat    audioFormat;
+
+    audioFormat.setFrequency(sf.mSampleRate);
+    audioFormat.setChannels(sf.mChannelsPerFrame);
+    audioFormat.setSampleSize(sf.mBitsPerChannel);
+    audioFormat.setCodec(QString::fromLatin1("audio/pcm"));
+    audioFormat.setByteOrder((sf.mFormatFlags & kAudioFormatFlagIsBigEndian) != 0 ? QAudioFormat::BigEndian : QAudioFormat::LittleEndian);
+    QAudioFormat::SampleType type = QAudioFormat::UnSignedInt;
+    if ((sf.mFormatFlags & kAudioFormatFlagIsSignedInteger) != 0)
+        type = QAudioFormat::SignedInt;
+    else if ((sf.mFormatFlags & kAudioFormatFlagIsFloat) != 0)
+        type = QAudioFormat::Float;
+    audioFormat.setSampleType(type);
+
+    return audioFormat;
+}
+
+AudioStreamBasicDescription toAudioStreamBasicDescription(QAudioFormat const& audioFormat)
+{
+    AudioStreamBasicDescription sf;
+
+    sf.mFormatFlags         = kAudioFormatFlagIsPacked;
+    sf.mSampleRate          = audioFormat.frequency();
+    sf.mFramesPerPacket     = 1;
+    sf.mChannelsPerFrame    = audioFormat.channels();
+    sf.mBitsPerChannel      = audioFormat.sampleSize();
+    sf.mBytesPerFrame       = sf.mChannelsPerFrame * (sf.mBitsPerChannel / 8);
+    sf.mBytesPerPacket      = sf.mFramesPerPacket * sf.mBytesPerFrame;
+    sf.mFormatID            = kAudioFormatLinearPCM;
+
+    switch (audioFormat.sampleType()) {
+    case QAudioFormat::SignedInt: sf.mFormatFlags |= kAudioFormatFlagIsSignedInteger; break;
+    case QAudioFormat::UnSignedInt: /* default */ break;
+    case QAudioFormat::Float: sf.mFormatFlags |= kAudioFormatFlagIsFloat; break;
+    case QAudioFormat::Unknown:  default: break;
+    }
+
+    if (audioFormat.byteOrder() == QAudioFormat::BigEndian)
+        sf.mFormatFlags |= kAudioFormatFlagIsBigEndian;
+
+    return sf;
+}
+
+// QAudioRingBuffer
+QAudioRingBuffer::QAudioRingBuffer(int bufferSize):
+    m_bufferSize(bufferSize)
+{
+    m_buffer = new char[m_bufferSize];
+    reset();
+}
+
+QAudioRingBuffer::~QAudioRingBuffer()
+{
+    delete m_buffer;
+}
+
+int QAudioRingBuffer::used() const
+{
+    return m_bufferUsed;
+}
+
+int QAudioRingBuffer::free() const
+{
+    return m_bufferSize - m_bufferUsed;
+}
+
+int QAudioRingBuffer::size() const
+{
+    return m_bufferSize;
+}
+
+void QAudioRingBuffer::reset()
+{
+    m_readPos = 0;
+    m_writePos = 0;
+    m_bufferUsed = 0;
+}
+
+QT_END_NAMESPACE
+
+