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Diffstat (limited to 'src/multimedia/audio/qaudiodeviceinfo_mac_p.cpp')
| -rw-r--r-- | src/multimedia/audio/qaudiodeviceinfo_mac_p.cpp | 357 |
1 files changed, 357 insertions, 0 deletions
diff --git a/src/multimedia/audio/qaudiodeviceinfo_mac_p.cpp b/src/multimedia/audio/qaudiodeviceinfo_mac_p.cpp new file mode 100644 index 0000000..ecd03e5 --- /dev/null +++ b/src/multimedia/audio/qaudiodeviceinfo_mac_p.cpp @@ -0,0 +1,357 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtMultimedia module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// 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. +// +// We mean it. +// + +#include <QtCore/qstringlist.h> +#include <QtCore/qlist.h> +#include <QtCore/qbytearray.h> +#include <QtCore/qdatastream.h> +#include <QtCore/qdebug.h> +#include <private/qcore_mac_p.h> + +#include <QtMultimedia/qaudiodeviceinfo.h> +#include "qaudio_mac_p.h" +#include "qaudiodeviceinfo_mac_p.h" + + + +QT_BEGIN_NAMESPACE + + +QAudioDeviceInfoInternal::QAudioDeviceInfoInternal(QByteArray const& handle, QAudio::Mode) +{ + QDataStream ds(handle); + quint32 did, tm; + + ds >> did >> tm >> name; + deviceId = AudioDeviceID(did); + mode = QAudio::Mode(tm); +} + +bool QAudioDeviceInfoInternal::isFormatSupported(const QAudioFormat& format) const +{ + return format.codec() == QString::fromLatin1("audio/pcm"); +} + +QAudioFormat QAudioDeviceInfoInternal::preferredFormat() const +{ + QAudioFormat rc; + + UInt32 propSize = 0; + + if (AudioDeviceGetPropertyInfo(deviceId, + 0, + mode == QAudio::AudioInput, + kAudioDevicePropertyStreams, + &propSize, + 0) == noErr) { + + const int sc = propSize / sizeof(AudioStreamID); + + if (sc > 0) { + AudioStreamID* streams = new AudioStreamID[sc]; + + if (AudioDeviceGetProperty(deviceId, + 0, + mode == QAudio::AudioInput, + kAudioDevicePropertyStreams, + &propSize, + streams) == noErr) { + + for (int i = 0; i < sc; ++i) { + if (AudioStreamGetPropertyInfo(streams[i], + 0, + kAudioStreamPropertyPhysicalFormat, + &propSize, + 0) == noErr) { + + AudioStreamBasicDescription sf; + + if (AudioStreamGetProperty(streams[i], + 0, + kAudioStreamPropertyPhysicalFormat, + &propSize, + &sf) == noErr) { + rc = toQAudioFormat(sf); + break; + } + } + } + } + + delete streams; + } + } + + return rc; +} + +QAudioFormat QAudioDeviceInfoInternal::nearestFormat(const QAudioFormat& format) const +{ + QAudioFormat rc(format); + QAudioFormat target = preferredFormat(); + + if (!format.codec().isEmpty() && format.codec() != QString::fromLatin1("audio/pcm")) + return QAudioFormat(); + + rc.setCodec(QString::fromLatin1("audio/pcm")); + + if (rc.frequency() != target.frequency()) + rc.setFrequency(target.frequency()); + if (rc.channels() != target.channels()) + rc.setChannels(target.channels()); + if (rc.sampleSize() != target.sampleSize()) + rc.setSampleSize(target.sampleSize()); + if (rc.byteOrder() != target.byteOrder()) + rc.setByteOrder(target.byteOrder()); + if (rc.sampleType() != target.sampleType()) + rc.setSampleType(target.sampleType()); + + return rc; +} + +QString QAudioDeviceInfoInternal::deviceName() const +{ + return name; +} + +QStringList QAudioDeviceInfoInternal::codecList() +{ + return QStringList() << QString::fromLatin1("audio/pcm"); +} + +QList<int> QAudioDeviceInfoInternal::frequencyList() +{ + QSet<int> rc; + + // Add some common frequencies + rc << 8000 << 11025 << 22050 << 44100; + + // + UInt32 propSize = 0; + + if (AudioDeviceGetPropertyInfo(deviceId, + 0, + mode == QAudio::AudioInput, + kAudioDevicePropertyAvailableNominalSampleRates, + &propSize, + 0) == noErr) { + + const int pc = propSize / sizeof(AudioValueRange); + + if (pc > 0) { + AudioValueRange* vr = new AudioValueRange[pc]; + + if (AudioDeviceGetProperty(deviceId, + 0, + mode == QAudio::AudioInput, + kAudioDevicePropertyAvailableNominalSampleRates, + &propSize, + vr) == noErr) { + + for (int i = 0; i < pc; ++i) + rc << vr[i].mMaximum; + } + + delete vr; + } + } + + return rc.toList(); +} + +QList<int> QAudioDeviceInfoInternal::channelsList() +{ + QList<int> rc; + + // Can mix down to 1 channel + rc << 1; + + UInt32 propSize = 0; + int channels = 0; + + if (AudioDeviceGetPropertyInfo(deviceId, + 0, + mode == QAudio::AudioInput, + kAudioDevicePropertyStreamConfiguration, + &propSize, + 0) == noErr) { + + AudioBufferList* audioBufferList = static_cast<AudioBufferList*>(qMalloc(propSize)); + + if (audioBufferList != 0) { + if (AudioDeviceGetProperty(deviceId, + 0, + mode == QAudio::AudioInput, + kAudioDevicePropertyStreamConfiguration, + &propSize, + audioBufferList) == noErr) { + + for (int i = 0; i < int(audioBufferList->mNumberBuffers); ++i) { + channels += audioBufferList->mBuffers[i].mNumberChannels; + rc << channels; + } + } + + qFree(audioBufferList); + } + } + + return rc; +} + +QList<int> QAudioDeviceInfoInternal::sampleSizeList() +{ + return QList<int>() << 8 << 16 << 24 << 32 << 64; +} + +QList<QAudioFormat::Endian> QAudioDeviceInfoInternal::byteOrderList() +{ + return QList<QAudioFormat::Endian>() << QAudioFormat::LittleEndian << QAudioFormat::BigEndian; +} + +QList<QAudioFormat::SampleType> QAudioDeviceInfoInternal::sampleTypeList() +{ + return QList<QAudioFormat::SampleType>() << QAudioFormat::SignedInt << QAudioFormat::UnSignedInt << QAudioFormat::Float; +} + +static QByteArray get_device_info(AudioDeviceID audioDevice, QAudio::Mode mode) +{ + UInt32 size; + QByteArray device; + QDataStream ds(&device, QIODevice::WriteOnly); + AudioStreamBasicDescription sf; + CFStringRef name; + Boolean isInput = mode == QAudio::AudioInput; + + // Id + ds << quint32(audioDevice); + + // Mode + size = sizeof(AudioStreamBasicDescription); + if (AudioDeviceGetProperty(audioDevice, 0, isInput, kAudioDevicePropertyStreamFormat, + &size, &sf) != noErr) { + return QByteArray(); + } + ds << quint32(mode); + + // Name + size = sizeof(CFStringRef); + if (AudioDeviceGetProperty(audioDevice, 0, isInput, kAudioObjectPropertyName, + &size, &name) != noErr) { + qWarning() << "QAudioDeviceInfo: Unable to find device name"; + } + ds << QCFString::toQString(name); + + CFRelease(name); + + return device; +} + +QByteArray QAudioDeviceInfoInternal::defaultInputDevice() +{ + AudioDeviceID audioDevice; + UInt32 size = sizeof(audioDevice); + + if (AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &size, + &audioDevice) != noErr) { + qWarning() << "QAudioDeviceInfo: Unable to find default input device"; + return QByteArray(); + } + + return get_device_info(audioDevice, QAudio::AudioInput); +} + +QByteArray QAudioDeviceInfoInternal::defaultOutputDevice() +{ + AudioDeviceID audioDevice; + UInt32 size = sizeof(audioDevice); + + if (AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &size, + &audioDevice) != noErr) { + qWarning() << "QAudioDeviceInfo: Unable to find default output device"; + return QByteArray(); + } + + return get_device_info(audioDevice, QAudio::AudioOutput); +} + +QList<QByteArray> QAudioDeviceInfoInternal::availableDevices(QAudio::Mode mode) +{ + QList<QByteArray> devices; + + UInt32 propSize = 0; + + if (AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices, &propSize, 0) == noErr) { + + const int dc = propSize / sizeof(AudioDeviceID); + + if (dc > 0) { + AudioDeviceID* audioDevices = new AudioDeviceID[dc]; + + if (AudioHardwareGetProperty(kAudioHardwarePropertyDevices, &propSize, audioDevices) == noErr) { + for (int i = 0; i < dc; ++i) { + QByteArray info = get_device_info(audioDevices[i], mode); + if (!info.isNull()) + devices << info; + } + } + + delete audioDevices; + } + } + + return devices; +} + + +QT_END_NAMESPACE + |