Initial copy of QtMultimediaKit.
Comes from original repo, with SHA1: 2c82d5611655e5967f5c5095af50c0991c4378b2
This commit is contained in:
Michael Goddard
351
src/multimediakit/audio/qaudiodeviceinfo_mac_p.cpp
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351
src/multimediakit/audio/qaudiodeviceinfo_mac_p.cpp
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Mobility Components.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists for the convenience
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// of other Qt classes. This header file may change from version to
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// version without notice, or even be removed.
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//
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// INTERNAL USE ONLY: Do NOT use for any other purpose.
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//
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#include <QtCore/qstringlist.h>
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#include <QtCore/qlist.h>
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#include <QtCore/qbytearray.h>
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#include <QtCore/qdatastream.h>
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#include <QtCore/qdebug.h>
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#include <qaudiodeviceinfo.h>
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#include "qaudio_mac_p.h"
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#include "qaudiodeviceinfo_mac_p.h"
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QT_BEGIN_NAMESPACE
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// XXX: remove at some future date
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static inline QString cfStringToQString(CFStringRef str)
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{
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CFIndex length = CFStringGetLength(str);
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const UniChar *chars = CFStringGetCharactersPtr(str);
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if (chars)
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return QString(reinterpret_cast<const QChar *>(chars), length);
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UniChar buffer[length];
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CFStringGetCharacters(str, CFRangeMake(0, length), buffer);
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return QString(reinterpret_cast<const QChar *>(buffer), length);
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}
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QAudioDeviceInfoInternal::QAudioDeviceInfoInternal(QByteArray const& handle, QAudio::Mode)
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{
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QDataStream ds(handle);
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quint32 did, tm;
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ds >> did >> tm >> name;
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deviceId = AudioDeviceID(did);
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mode = QAudio::Mode(tm);
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}
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bool QAudioDeviceInfoInternal::isFormatSupported(const QAudioFormat& format) const
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{
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QAudioDeviceInfoInternal *self = const_cast<QAudioDeviceInfoInternal*>(this);
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return format.isValid()
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&& format.codec() == QString::fromLatin1("audio/pcm")
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&& self->supportedSampleRates().contains(format.sampleRate())
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&& self->supportedChannelCounts().contains(format.channelCount())
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&& self->supportedSampleSizes().contains(format.sampleSize());
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}
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QAudioFormat QAudioDeviceInfoInternal::preferredFormat() const
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{
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QAudioFormat rc;
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UInt32 propSize = 0;
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if (AudioDeviceGetPropertyInfo(deviceId,
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0,
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mode == QAudio::AudioInput,
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kAudioDevicePropertyStreams,
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&propSize,
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0) == noErr) {
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const int sc = propSize / sizeof(AudioStreamID);
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if (sc > 0) {
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AudioStreamID* streams = new AudioStreamID[sc];
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if (AudioDeviceGetProperty(deviceId,
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0,
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mode == QAudio::AudioInput,
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kAudioDevicePropertyStreams,
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&propSize,
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streams) == noErr) {
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for (int i = 0; i < sc; ++i) {
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if (AudioStreamGetPropertyInfo(streams[i],
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0,
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kAudioStreamPropertyPhysicalFormat,
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&propSize,
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0) == noErr) {
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AudioStreamBasicDescription sf;
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if (AudioStreamGetProperty(streams[i],
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0,
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kAudioStreamPropertyPhysicalFormat,
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&propSize,
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&sf) == noErr) {
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rc = toQAudioFormat(sf);
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break;
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}
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}
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}
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}
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delete streams;
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}
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}
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return rc;
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}
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QString QAudioDeviceInfoInternal::deviceName() const
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{
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return name;
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}
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QStringList QAudioDeviceInfoInternal::supportedCodecs()
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{
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return QStringList() << QString::fromLatin1("audio/pcm");
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}
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QList<int> QAudioDeviceInfoInternal::supportedSampleRates()
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{
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QSet<int> rc;
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// Add some common frequencies
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rc << 8000 << 11025 << 22050 << 44100;
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//
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UInt32 propSize = 0;
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if (AudioDeviceGetPropertyInfo(deviceId,
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0,
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mode == QAudio::AudioInput,
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kAudioDevicePropertyAvailableNominalSampleRates,
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&propSize,
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0) == noErr) {
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const int pc = propSize / sizeof(AudioValueRange);
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if (pc > 0) {
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AudioValueRange* vr = new AudioValueRange[pc];
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if (AudioDeviceGetProperty(deviceId,
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0,
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mode == QAudio::AudioInput,
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kAudioDevicePropertyAvailableNominalSampleRates,
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&propSize,
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vr) == noErr) {
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for (int i = 0; i < pc; ++i)
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rc << vr[i].mMaximum;
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}
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delete vr;
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}
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}
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return rc.toList();
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}
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QList<int> QAudioDeviceInfoInternal::supportedChannelCounts()
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{
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QList<int> rc;
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// Can mix down to 1 channel
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rc << 1;
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UInt32 propSize = 0;
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int channels = 0;
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if (AudioDeviceGetPropertyInfo(deviceId,
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0,
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mode == QAudio::AudioInput,
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kAudioDevicePropertyStreamConfiguration,
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&propSize,
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0) == noErr) {
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AudioBufferList* audioBufferList = static_cast<AudioBufferList*>(qMalloc(propSize));
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if (audioBufferList != 0) {
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if (AudioDeviceGetProperty(deviceId,
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0,
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mode == QAudio::AudioInput,
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kAudioDevicePropertyStreamConfiguration,
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&propSize,
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audioBufferList) == noErr) {
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for (int i = 0; i < int(audioBufferList->mNumberBuffers); ++i) {
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channels += audioBufferList->mBuffers[i].mNumberChannels;
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rc << channels;
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}
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}
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qFree(audioBufferList);
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}
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}
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return rc;
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}
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QList<int> QAudioDeviceInfoInternal::supportedSampleSizes()
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{
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return QList<int>() << 8 << 16 << 24 << 32 << 64;
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}
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QList<QAudioFormat::Endian> QAudioDeviceInfoInternal::supportedByteOrders()
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{
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return QList<QAudioFormat::Endian>() << QAudioFormat::LittleEndian << QAudioFormat::BigEndian;
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}
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QList<QAudioFormat::SampleType> QAudioDeviceInfoInternal::supportedSampleTypes()
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{
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return QList<QAudioFormat::SampleType>() << QAudioFormat::SignedInt << QAudioFormat::UnSignedInt << QAudioFormat::Float;
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}
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static QByteArray get_device_info(AudioDeviceID audioDevice, QAudio::Mode mode)
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{
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UInt32 size;
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QByteArray device;
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QDataStream ds(&device, QIODevice::WriteOnly);
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AudioStreamBasicDescription sf;
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CFStringRef name;
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Boolean isInput = mode == QAudio::AudioInput;
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// Id
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ds << quint32(audioDevice);
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// Mode
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size = sizeof(AudioStreamBasicDescription);
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if (AudioDeviceGetProperty(audioDevice, 0, isInput, kAudioDevicePropertyStreamFormat,
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&size, &sf) != noErr) {
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return QByteArray();
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}
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ds << quint32(mode);
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// Name
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size = sizeof(CFStringRef);
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if (AudioDeviceGetProperty(audioDevice, 0, isInput, kAudioObjectPropertyName,
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&size, &name) != noErr) {
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qWarning() << "QAudioDeviceInfo: Unable to find device name";
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return QByteArray();
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}
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ds << cfStringToQString(name);
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CFRelease(name);
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return device;
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}
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QByteArray QAudioDeviceInfoInternal::defaultInputDevice()
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{
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AudioDeviceID audioDevice;
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UInt32 size = sizeof(audioDevice);
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if (AudioHardwareGetProperty(kAudioHardwarePropertyDefaultInputDevice, &size,
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&audioDevice) != noErr) {
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qWarning() << "QAudioDeviceInfo: Unable to find default input device";
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return QByteArray();
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}
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return get_device_info(audioDevice, QAudio::AudioInput);
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}
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QByteArray QAudioDeviceInfoInternal::defaultOutputDevice()
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{
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AudioDeviceID audioDevice;
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UInt32 size = sizeof(audioDevice);
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if (AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &size,
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&audioDevice) != noErr) {
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qWarning() << "QAudioDeviceInfo: Unable to find default output device";
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return QByteArray();
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}
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return get_device_info(audioDevice, QAudio::AudioOutput);
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}
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QList<QByteArray> QAudioDeviceInfoInternal::availableDevices(QAudio::Mode mode)
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{
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QList<QByteArray> devices;
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UInt32 propSize = 0;
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if (AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices, &propSize, 0) == noErr) {
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const int dc = propSize / sizeof(AudioDeviceID);
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if (dc > 0) {
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AudioDeviceID* audioDevices = new AudioDeviceID[dc];
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if (AudioHardwareGetProperty(kAudioHardwarePropertyDevices, &propSize, audioDevices) == noErr) {
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for (int i = 0; i < dc; ++i) {
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QByteArray info = get_device_info(audioDevices[i], mode);
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if (!info.isNull())
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devices << info;
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}
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}
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delete audioDevices;
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}
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}
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return devices;
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}
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QT_END_NAMESPACE
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