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/****************************************************************************
**
** Copyright (C) 2016 Research In Motion
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qqnxaudiodevice_p.h"
#include "qnxaudioutils_p.h"
#include <sys/asoundlib.h>
QT_BEGIN_NAMESPACE
QnxAudioDeviceInfo::QnxAudioDeviceInfo(const QByteArray &deviceName, QAudioDevice::Mode mode)
: QAudioDevicePrivate(deviceName, mode)
{
}
QnxAudioDeviceInfo::~QnxAudioDeviceInfo()
{
}
QAudioFormat QnxAudioDeviceInfo::preferredFormat() const
{
QAudioFormat format;
format.setSampleRate(44100);
format.setByteOrder(QAudioFormat::LittleEndian);
format.setSampleType(QAudioFormat::SignedInt);
format.setSampleSize(16);
format.setChannelCount(2);
if(mode == QAudioDevice::Input && !isFormatSupported(format))
format.setChannelCount(1);
return format;
}
bool QnxAudioDeviceInfo::isFormatSupported(const QAudioFormat &format) const
{
const int pcmMode = (mode == QAudioDevice::Output) ? SND_PCM_OPEN_PLAYBACK : SND_PCM_OPEN_CAPTURE;
snd_pcm_t *handle;
int card = 0;
int device = 0;
if (snd_pcm_open_preferred(&handle, &card, &device, pcmMode) < 0)
return false;
snd_pcm_channel_info_t info;
memset (&info, 0, sizeof(info));
info.channel = (mode == QAudioDevice::Output) ? SND_PCM_CHANNEL_PLAYBACK : SND_PCM_CHANNEL_CAPTURE;
if (snd_pcm_plugin_info(handle, &info) < 0) {
qWarning("QAudioDevice: couldn't get channel info");
snd_pcm_close(handle);
return false;
}
snd_pcm_channel_params_t params = QnxAudioUtils::formatToChannelParams(format, mode, info.max_fragment_size);
const int errorCode = snd_pcm_plugin_params(handle, ¶ms);
snd_pcm_close(handle);
return errorCode == 0;
}
QList<int> QnxAudioDeviceInfo::supportedSampleRates() const
{
return QList<int>() << 8000 << 11025 << 22050 << 44100 << 48000;
}
QList<int> QnxAudioDeviceInfo::supportedChannelCounts() const
{
return QList<int>() << 1 << 2;
}
QList<int> QnxAudioDeviceInfo::supportedSampleSizes() const
{
return QList<int>() << 8 << 16 << 32;
}
QList<QAudioFormat::Endian> QnxAudioDeviceInfo::supportedByteOrders() const
{
return QList<QAudioFormat::Endian>() << QAudioFormat::LittleEndian << QAudioFormat::BigEndian;
}
QList<QAudioFormat::SampleType> QnxAudioDeviceInfo::supportedSampleTypes() const
{
return QList<QAudioFormat::SampleType>() << QAudioFormat::SignedInt << QAudioFormat::UnSignedInt << QAudioFormat::Float;
}
QT_END_NAMESPACE
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