1 files changed, 128 insertions, 0 deletions
diff --git a/src/multimedia/platform/alsa/qalsamediadevices.cpp b/src/multimedia/platform/alsa/qalsamediadevices.cpp
new file mode 100644
index 000000000..a6823191e
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+++ b/src/multimedia/platform/alsa/qalsamediadevices.cpp
@@ -0,0 +1,128 @@
+/****************************************************************************
+**
+** 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 "qcamerainfo_p.h"
+
+#include "private/qalsaaudioinput_p.h"
+#include "private/qalsaaudiooutput_p.h"
+#include "private/qalsaaudiodeviceinfo_p.h"
+
+#include <alsa/asoundlib.h>
+
+QT_BEGIN_NAMESPACE
+
+QAlsaMediaDevices::QAlsaMediaDevices()
+    : QPlatformMediaDevices()
+{
+}
+
+static QList<QAudioDeviceInfo> availableDevices(QAudio::Mode mode)
+{
+    QList<QAudioDeviceInfo> 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<QAudioDeviceInfo> QAlsaMediaDevices::audioInputs() const
+{
+    return availableDevices(QAudio::AudioInput);
+}
+
+QList<QAudioDeviceInfo> QAlsaMediaDevices::audioOutputs() const
+{
+    return availableDevices(QAudio::AudioOutput);
+}
+
+QList<QCameraInfo> QAlsaMediaDevices::videoInputs() const
+{
+    return {};
+}
+
+QAbstractAudioInput *QAlsaMediaDevices::createAudioInputDevice(const QAudioDeviceInfo &deviceInfo)
+{
+    return new QAlsaAudioInput(deviceInfo.id());
+}
+
+QAbstractAudioOutput *QAlsaMediaDevices::createAudioOutputDevice(const QAudioDeviceInfo &deviceInfo)
+{
+    return new QAlsaAudioOutput(deviceInfo.id());
+}
+
+QT_END_NAMESPACE