1 files changed, 108 insertions, 0 deletions
diff --git a/src/multimedia/darwin/qdarwinaudiodevice.mm b/src/multimedia/darwin/qdarwinaudiodevice.mm
new file mode 100644
index 000000000..8374f4cea
--- /dev/null
+++ b/src/multimedia/darwin/qdarwinaudiodevice.mm
@@ -0,0 +1,108 @@
+// Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies).
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "qdarwinaudiodevice_p.h"
+#include "qcoreaudioutils_p.h"
+#include <private/qcore_mac_p.h>
+
+#if defined(Q_OS_IOS)
+#include "qcoreaudiosessionmanager_p.h"
+#else
+#include "qmacosaudiodatautils_p.h"
+#endif
+
+#include <QtCore/QDataStream>
+#include <QtCore/QDebug>
+#include <QtCore/QSet>
+#include <QIODevice>
+
+QT_BEGIN_NAMESPACE
+
+#if defined(Q_OS_MACOS)
+QCoreAudioDeviceInfo::QCoreAudioDeviceInfo(AudioDeviceID id, const QByteArray &device, QAudioDevice::Mode mode)
+    : QAudioDevicePrivate(device, mode),
+    m_deviceId(id)
+#else
+QCoreAudioDeviceInfo::QCoreAudioDeviceInfo(const QByteArray &device, QAudioDevice::Mode mode)
+    : QAudioDevicePrivate(device, mode)
+#endif
+{
+    description = getDescription();
+    getChannelLayout();
+    preferredFormat = determinePreferredFormat();
+    minimumSampleRate = 1;
+    maximumSampleRate = 96000;
+    minimumChannelCount = 1;
+    maximumChannelCount = 16;
+    supportedSampleFormats << QAudioFormat::UInt8 << QAudioFormat::Int16 << QAudioFormat::Int32 << QAudioFormat::Float;
+
+}
+
+QAudioFormat QCoreAudioDeviceInfo::determinePreferredFormat() const
+{
+    QAudioFormat format;
+
+#if defined(Q_OS_MACOS)
+    const auto audioDevicePropertyStreamsAddress =
+            makePropertyAddress(kAudioDevicePropertyStreams, mode);
+
+    if (auto streamIDs = getAudioData<AudioStreamID>(m_deviceId, audioDevicePropertyStreamsAddress,
+                                                     "propertyStreams")) {
+        const auto audioDevicePhysicalFormatPropertyAddress =
+                makePropertyAddress(kAudioStreamPropertyPhysicalFormat, mode);
+
+        for (auto streamID : *streamIDs) {
+            if (auto streamDescription = getAudioObject<AudioStreamBasicDescription>(
+                        streamID, audioDevicePhysicalFormatPropertyAddress,
+                        "prefferedPhysicalFormat")) {
+                format = CoreAudioUtils::toQAudioFormat(*streamDescription);
+                break;
+            }
+        }
+    }
+
+    if (!format.isValid())
+#endif
+    {
+        format.setSampleRate(44100);
+        format.setSampleFormat(QAudioFormat::Int16);
+        format.setChannelCount(mode == QAudioDevice::Input ? 1 : 2);
+    }
+    format.setChannelConfig(channelConfiguration);
+
+    return format;
+}
+
+
+QString QCoreAudioDeviceInfo::getDescription() const
+{
+#ifdef Q_OS_MACOS
+    const auto propertyAddress = makePropertyAddress(kAudioObjectPropertyName, mode);
+    if (auto name =
+                getAudioObject<CFStringRef>(m_deviceId, propertyAddress, "Device Description")) {
+        auto deleter = qScopeGuard([&name]() { CFRelease(*name); });
+        return QString::fromCFString(*name);
+    }
+
+    return {};
+#else
+    return QString::fromUtf8(id);
+#endif
+}
+
+void QCoreAudioDeviceInfo::getChannelLayout()
+{
+#ifdef Q_OS_MACOS
+    const auto propertyAddress =
+            makePropertyAddress(kAudioDevicePropertyPreferredChannelLayout, mode);
+    if (auto data = getAudioData<char>(m_deviceId, propertyAddress, "prefferedChannelLayout",
+                                       sizeof(AudioChannelLayout))) {
+        const auto *layout = reinterpret_cast<const AudioChannelLayout *>(data->data());
+        channelConfiguration = CoreAudioUtils::fromAudioChannelLayout(layout);
+    }
+#else
+    channelConfiguration = (mode == QAudioDevice::Input) ? QAudioFormat::ChannelConfigMono : QAudioFormat::ChannelConfigStereo;
+#endif
+}
+
+QT_END_NAMESPACE