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/****************************************************************************
**
** 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 Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 "qpulsehelpers.h"
QT_BEGIN_NAMESPACE
namespace QPulseAudioInternal
{
pa_sample_spec audioFormatToSampleSpec(const QAudioFormat &format)
{
pa_sample_spec spec;
spec.rate = format.frequency();
spec.channels = format.channels();
if (format.sampleSize() == 8) {
spec.format = PA_SAMPLE_U8;
} else if (format.sampleSize() == 16) {
switch (format.byteOrder()) {
case QAudioFormat::BigEndian: spec.format = PA_SAMPLE_S16BE; break;
case QAudioFormat::LittleEndian: spec.format = PA_SAMPLE_S16LE; break;
}
} else if (format.sampleSize() == 24) {
switch (format.byteOrder()) {
case QAudioFormat::BigEndian: spec.format = PA_SAMPLE_S24BE; break;
case QAudioFormat::LittleEndian: spec.format = PA_SAMPLE_S24LE; break;
}
} else if (format.sampleSize() == 32) {
switch (format.byteOrder()) {
case QAudioFormat::BigEndian:
format.sampleType() == QAudioFormat::Float ? spec.format = PA_SAMPLE_FLOAT32BE : spec.format = PA_SAMPLE_S32BE;
break;
case QAudioFormat::LittleEndian:
format.sampleType() == QAudioFormat::Float ? spec.format = PA_SAMPLE_FLOAT32LE : spec.format = PA_SAMPLE_S32LE;
break;
}
} else {
spec.format = PA_SAMPLE_INVALID;
}
return spec;
}
#ifdef DEBUG_PULSE
QString stateToQString(pa_stream_state_t state)
{
switch (state)
{
case PA_STREAM_UNCONNECTED: return "Unconnected";
case PA_STREAM_CREATING: return "Creating";
case PA_STREAM_READY: return "Ready";
case PA_STREAM_FAILED: return "Failed";
case PA_STREAM_TERMINATED: return "Terminated";
}
return QString("Unknown state: %0").arg(state);
}
QString sampleFormatToQString(pa_sample_format format)
{
switch (format)
{
case PA_SAMPLE_U8: return "Unsigned 8 Bit PCM.";
case PA_SAMPLE_ALAW: return "8 Bit a-Law ";
case PA_SAMPLE_ULAW: return "8 Bit mu-Law";
case PA_SAMPLE_S16LE: return "Signed 16 Bit PCM, little endian (PC).";
case PA_SAMPLE_S16BE: return "Signed 16 Bit PCM, big endian.";
case PA_SAMPLE_FLOAT32LE: return "32 Bit IEEE floating point, little endian (PC), range -1.0 to 1.0";
case PA_SAMPLE_FLOAT32BE: return "32 Bit IEEE floating point, big endian, range -1.0 to 1.0";
case PA_SAMPLE_S32LE: return "Signed 32 Bit PCM, little endian (PC).";
case PA_SAMPLE_S32BE: return "Signed 32 Bit PCM, big endian.";
case PA_SAMPLE_S24LE: return "Signed 24 Bit PCM packed, little endian (PC).";
case PA_SAMPLE_S24BE: return "Signed 24 Bit PCM packed, big endian.";
case PA_SAMPLE_S24_32LE: return "Signed 24 Bit PCM in LSB of 32 Bit words, little endian (PC).";
case PA_SAMPLE_S24_32BE: return "Signed 24 Bit PCM in LSB of 32 Bit words, big endian.";
case PA_SAMPLE_MAX: return "Upper limit of valid sample types.";
case PA_SAMPLE_INVALID: return "Invalid sample format";
}
return QString("Invalid value: %0").arg(format);
}
QString stateToQString(pa_context_state_t state)
{
switch (state)
{
case PA_CONTEXT_UNCONNECTED: return "Unconnected";
case PA_CONTEXT_CONNECTING: return "Connecting";
case PA_CONTEXT_AUTHORIZING: return "Authorizing";
case PA_CONTEXT_SETTING_NAME: return "Setting Name";
case PA_CONTEXT_READY: return "Ready";
case PA_CONTEXT_FAILED: return "Failed";
case PA_CONTEXT_TERMINATED: return "Terminated";
}
return QString("Unknown state: %0").arg(state);
}
#endif
QAudioFormat sampleSpecToAudioFormat(pa_sample_spec spec)
{
QAudioFormat format;
format.setFrequency(spec.rate);
format.setChannelCount(spec.channels);
format.setCodec("audio/pcm");
switch (spec.format) {
case PA_SAMPLE_U8:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::UnSignedInt);
format.setSampleSize(8);
break;
case PA_SAMPLE_ALAW:
// TODO:
break;
case PA_SAMPLE_ULAW:
// TODO:
break;
case PA_SAMPLE_S16LE:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(16);
break;
case PA_SAMPLE_S16BE:
format.setByteOrder(QAudioFormat::BigEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(16);
break;
case PA_SAMPLE_FLOAT32LE:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::Float);
format.setSampleSize(32);
break;
case PA_SAMPLE_FLOAT32BE:
format.setByteOrder(QAudioFormat::BigEndian);
format.setSampleType(QAudioFormat::Float);
format.setSampleSize(32);
break;
case PA_SAMPLE_S32LE:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(32);
break;
case PA_SAMPLE_S32BE:
format.setByteOrder(QAudioFormat::BigEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(32);
break;
case PA_SAMPLE_S24LE:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(24);
break;
case PA_SAMPLE_S24BE:
format.setByteOrder(QAudioFormat::BigEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(24);
break;
case PA_SAMPLE_S24_32LE:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(24);
break;
case PA_SAMPLE_S24_32BE:
format.setByteOrder(QAudioFormat::BigEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(24);
break;
case PA_SAMPLE_MAX:
case PA_SAMPLE_INVALID:
default:
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::Unknown);
format.setSampleSize(0);
}
return format;
}
}
QT_END_NAMESPACE
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