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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** 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 "qalsamediadevices_p.h"
#include "qmediadevices.h"
#include "qcameradevice_p.h"
#include "private/qalsaaudiosource_p.h"
#include "private/qalsaaudiosink_p.h"
#include "private/qalsaaudiodevice_p.h"
#include <alsa/asoundlib.h>
QT_BEGIN_NAMESPACE
QAlsaMediaDevices::QAlsaMediaDevices()
: QPlatformMediaDevices()
{
}
static QList<QAudioDevice> availableDevices(QAudio::Mode mode)
{
QList<QAudioDevice> devices;
QByteArray filter;
// Create a list of all current audio devices that support mode
void **hints, **n;
char *name, *descr, *io;
if(snd_device_name_hint(-1, "pcm", &hints) < 0) {
qWarning() << "no alsa devices available";
return devices;
}
n = hints;
if(mode == QAudio::AudioInput) {
filter = "Input";
} else {
filter = "Output";
}
while (*n != NULL) {
name = snd_device_name_get_hint(*n, "NAME");
if (name != 0 && qstrcmp(name, "null") != 0) {
descr = snd_device_name_get_hint(*n, "DESC");
io = snd_device_name_get_hint(*n, "IOID");
if ((descr != NULL) && ((io == NULL) || (io == filter))) {
auto *infop = new QAlsaAudioDeviceInfo(name, QString::fromUtf8(descr), mode);
devices.append(infop->create());
if (strcmp(name, "default") == 0)
infop->isDefault = true;
}
free(descr);
free(io);
}
free(name);
++n;
}
snd_device_name_free_hint(hints);
return devices;
}
QList<QAudioDevice> QAlsaMediaDevices::audioInputs() const
{
return availableDevices(QAudio::AudioInput);
}
QList<QAudioDevice> QAlsaMediaDevices::audioOutputs() const
{
return availableDevices(QAudio::AudioOutput);
}
QList<QCameraDevice> QAlsaMediaDevices::videoInputs() const
{
return {};
}
QPlatformAudioSource *QAlsaMediaDevices::createAudioSource(const QAudioDevice &deviceInfo)
{
return new QAlsaAudioSource(deviceInfo.id());
}
QPlatformAudioSink *QAlsaMediaDevices::createAudioSink(const QAudioDevice &deviceInfo)
{
return new QAlsaAudioSink(deviceInfo.id());
}
QT_END_NAMESPACE
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