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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// INTERNAL USE ONLY: Do NOT use for any other purpose.
//
#include "qalsaaudiodevice_p.h"
#include <alsa/version.h>
QT_BEGIN_NAMESPACE
QAlsaAudioDeviceInfo::QAlsaAudioDeviceInfo(const QByteArray &dev, const QString &desc, QAudioDevice::Mode mode)
: QAudioDevicePrivate(dev, mode)
{
description = desc;
checkSurround();
minimumChannelCount = 1;
maximumChannelCount = 2;
if (surround71)
maximumChannelCount = 8;
else if (surround40)
maximumChannelCount = 4;
else if (surround51)
maximumChannelCount = 6;
minimumSampleRate = 8000;
maximumSampleRate = 48000;
supportedSampleFormats << QAudioFormat::UInt8 << QAudioFormat::Int16 << QAudioFormat::Int32 << QAudioFormat::Float;
preferredFormat.setChannelCount(mode == QAudioDevice::Input ? 1 : 2);
preferredFormat.setSampleFormat(QAudioFormat::Float);
preferredFormat.setSampleRate(48000);
}
QAlsaAudioDeviceInfo::~QAlsaAudioDeviceInfo()
{
}
void QAlsaAudioDeviceInfo::checkSurround()
{
surround40 = false;
surround51 = false;
surround71 = false;
void **hints, **n;
char *name, *descr, *io;
if(snd_device_name_hint(-1, "pcm", &hints) < 0)
return;
n = hints;
while (*n != NULL) {
name = snd_device_name_get_hint(*n, "NAME");
descr = snd_device_name_get_hint(*n, "DESC");
io = snd_device_name_get_hint(*n, "IOID");
if((name != NULL) && (descr != NULL)) {
QString deviceName = QLatin1String(name);
if (mode == QAudioDevice::Output) {
if(deviceName.contains(QLatin1String("surround40")))
surround40 = true;
if(deviceName.contains(QLatin1String("surround51")))
surround51 = true;
if(deviceName.contains(QLatin1String("surround71")))
surround71 = true;
}
}
if(name != NULL)
free(name);
if(descr != NULL)
free(descr);
if(io != NULL)
free(io);
++n;
}
snd_device_name_free_hint(hints);
}
QT_END_NAMESPACE
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