qmediadevices.cpp

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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
 
#include "qmediadevices.h"
#include "private/qplatformmediaintegration_p.h"
#include "private/qplatformmediadevices_p.h"
 
#include <qaudiodevice.h>
#include <qcameradevice.h>
 
QT_BEGIN_NAMESPACE
 
QList<QAudioDevice> QMediaDevices::audioInputs()
{
    return QPlatformMediaDevices::instance()->audioInputs();
}
 
QList<QAudioDevice> QMediaDevices::audioOutputs()
{
    return QPlatformMediaDevices::instance()->audioOutputs();
}
 
QList<QCameraDevice> QMediaDevices::videoInputs()
{
    QPlatformMediaDevices::instance()->initVideoDevicesConnection();
    return QPlatformMediaIntegration::instance()->videoInputs();
}
 
QAudioDevice QMediaDevices::defaultAudioInput()
{
    const auto inputs = audioInputs();
    if (inputs.isEmpty())
        return {};
    for (const auto &info : inputs)
        if (info.isDefault())
            return info;
    return inputs.value(0);
}
 
QAudioDevice QMediaDevices::defaultAudioOutput()
{
    const auto outputs = audioOutputs();
    if (outputs.isEmpty())
        return {};
    for (const auto &info : outputs)
        if (info.isDefault())
            return info;
    return outputs.value(0);
}
 
QCameraDevice QMediaDevices::defaultVideoInput()
{
    const auto inputs = videoInputs();
    if (inputs.isEmpty())
        return {};
    for (const auto &info : inputs)
        if (info.isDefault())
            return info;
    return inputs.value(0);
}
 
QMediaDevices::QMediaDevices(QObject *parent)
    : QObject(parent)
{
    auto platformDevices = QPlatformMediaDevices::instance();
    connect(platformDevices, &QPlatformMediaDevices::videoInputsChanged, this,
            &QMediaDevices::videoInputsChanged);
    connect(platformDevices, &QPlatformMediaDevices::audioInputsChanged, this,
            &QMediaDevices::audioInputsChanged);
    connect(platformDevices, &QPlatformMediaDevices::audioOutputsChanged, this,
            &QMediaDevices::audioOutputsChanged);
}
 
QMediaDevices::~QMediaDevices() = default;
 
void QMediaDevices::connectNotify(const QMetaMethod &signal)
{
    if (signal == QMetaMethod::fromSignal(&QMediaDevices::videoInputsChanged))
        QPlatformMediaDevices::instance()->initVideoDevicesConnection();
 
    QObject::connectNotify(signal);
}
 
QT_END_NAMESPACE
 
#include "moc_qmediadevices.cpp"