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Diffstat (limited to 'src/multimedia/multimedia/audio/qaudiodeviceinfo.cpp')
| -rw-r--r-- | src/multimedia/multimedia/audio/qaudiodeviceinfo.cpp | 400 |
1 files changed, 0 insertions, 400 deletions
diff --git a/src/multimedia/multimedia/audio/qaudiodeviceinfo.cpp b/src/multimedia/multimedia/audio/qaudiodeviceinfo.cpp deleted file mode 100644 index ff04b4e3d1..0000000000 --- a/src/multimedia/multimedia/audio/qaudiodeviceinfo.cpp +++ /dev/null @@ -1,400 +0,0 @@ -/**************************************************************************** -** -** 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. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qaudiodevicefactory_p.h" -#include <QtMultimedia/qaudioengine.h> -#include <QtMultimedia/qaudiodeviceinfo.h> - - -QT_BEGIN_NAMESPACE - -class QAudioDeviceInfoPrivate : public QSharedData -{ -public: - QAudioDeviceInfoPrivate():info(0) {} - QAudioDeviceInfoPrivate(const QString &r, const QByteArray &h, QAudio::Mode m): - realm(r), handle(h), mode(m) - { - info = QAudioDeviceFactory::audioDeviceInfo(realm, handle, mode); - } - - QAudioDeviceInfoPrivate(const QAudioDeviceInfoPrivate &other): - QSharedData(other), - realm(other.realm), handle(other.handle), mode(other.mode) - { - info = QAudioDeviceFactory::audioDeviceInfo(realm, handle, mode); - } - - QAudioDeviceInfoPrivate& operator=(const QAudioDeviceInfoPrivate &other) - { - delete info; - - realm = other.realm; - handle = other.handle; - mode = other.mode; - info = QAudioDeviceFactory::audioDeviceInfo(realm, handle, mode); - return *this; - } - - ~QAudioDeviceInfoPrivate() - { - delete info; - } - - QString realm; - QByteArray handle; - QAudio::Mode mode; - QAbstractAudioDeviceInfo* info; -}; - - -/*! - \class QAudioDeviceInfo - \brief The QAudioDeviceInfo class provides an interface to query audio devices and their functionality. - \inmodule QtMultimedia - \ingroup multimedia - - \since 4.6 - - QAudioDeviceInfo lets you query for audio devices--such as sound - cards and USB headsets--that are currently available on the system. - The audio devices available are dependent on the platform or audio plugins installed. - - You can also query each device for the formats it supports. A - format in this context is a set consisting of a specific byte - order, channel, codec, frequency, sample rate, and sample type. A - format is represented by the QAudioFormat class. - - The values supported by the the device for each of these - parameters can be fetched with - supportedByteOrders(), supportedChannelCounts(), supportedCodecs(), - supportedSampleRates(), supportedSampleSizes(), and - supportedSampleTypes(). The combinations supported are dependent on the platform, - audio plugins installed and the audio device capabilities. If you need a specific format, you can check if - the device supports it with isFormatSupported(), or fetch a - supported format that is as close as possible to the format with - nearestFormat(). For instance: - - \snippet doc/src/snippets/audio/main.cpp 1 - \dots 8 - \snippet doc/src/snippets/audio/main.cpp 2 - - A QAudioDeviceInfo is used by Qt to construct - classes that communicate with the device--such as - QAudioInput, and QAudioOutput. The static - functions defaultInputDevice(), defaultOutputDevice(), and - availableDevices() let you get a list of all available - devices. Devices are fetch according to the value of mode - this is specified by the QAudio::Mode enum. - The QAudioDeviceInfo returned are only valid for the QAudio::Mode. - - For instance: - - \code - foreach(const QAudioDeviceInfo &deviceInfo, QAudioDeviceInfo::availableDevices(QAudio::AudioOutput)) - qDebug() << "Device name: " << deviceInfo.deviceName(); - \endcode - - In this code sample, we loop through all devices that are able to output - sound, i.e., play an audio stream in a supported format. For each device we - find, we simply print the deviceName(). - - \sa QAudioOutput, QAudioInput -*/ - -/*! - Constructs an empty QAudioDeviceInfo object. -*/ - -QAudioDeviceInfo::QAudioDeviceInfo(): - d(new QAudioDeviceInfoPrivate) -{ -} - -/*! - Constructs a copy of \a other. -*/ - -QAudioDeviceInfo::QAudioDeviceInfo(const QAudioDeviceInfo& other): - d(other.d) -{ -} - -/*! - Destroy this audio device info. -*/ - -QAudioDeviceInfo::~QAudioDeviceInfo() -{ -} - -/*! - Sets the QAudioDeviceInfo object to be equal to \a other. -*/ - -QAudioDeviceInfo& QAudioDeviceInfo::operator=(const QAudioDeviceInfo &other) -{ - d = other.d; - return *this; -} - -/*! - Returns whether this QAudioDeviceInfo object holds a device definition. -*/ - -bool QAudioDeviceInfo::isNull() const -{ - return d->info == 0; -} - -/*! - Returns human readable name of audio device. - - Device names vary depending on platform/audio plugin being used. - - They are a unique string identifiers for the audio device. - - eg. default, Intel, U0x46d0x9a4 -*/ - -QString QAudioDeviceInfo::deviceName() const -{ - return isNull() ? QString() : d->info->deviceName(); -} - -/*! - Returns true if \a settings are supported by the audio device of this QAudioDeviceInfo. -*/ - -bool QAudioDeviceInfo::isFormatSupported(const QAudioFormat &settings) const -{ - return isNull() ? false : d->info->isFormatSupported(settings); -} - -/*! - Returns QAudioFormat of default settings. - - These settings are provided by the platform/audio plugin being used. - - They also are dependent on the QAudio::Mode being used. - - A typical audio system would provide something like: - \list - \o Input settings: 8000Hz mono 8 bit. - \o Output settings: 44100Hz stereo 16 bit little endian. - \endlist -*/ - -QAudioFormat QAudioDeviceInfo::preferredFormat() const -{ - return isNull() ? QAudioFormat() : d->info->preferredFormat(); -} - -/*! - Returns closest QAudioFormat to \a settings that system audio supports. - - These settings are provided by the platform/audio plugin being used. - - They also are dependent on the QAudio::Mode being used. -*/ - -QAudioFormat QAudioDeviceInfo::nearestFormat(const QAudioFormat &settings) const -{ - return isNull() ? QAudioFormat() : d->info->nearestFormat(settings); -} - -/*! - Returns a list of supported codecs. - - All platform and plugin implementations should provide support for: - - "audio/pcm" - Linear PCM - - For writing plugins to support additional codecs refer to: - - http://www.iana.org/assignments/media-types/audio/ -*/ - -QStringList QAudioDeviceInfo::supportedCodecs() const -{ - return isNull() ? QStringList() : d->info->codecList(); -} - -/*! - Returns a list of supported sample rates. - - \since 4.7 -*/ - -QList<int> QAudioDeviceInfo::supportedSampleRates() const -{ - return supportedFrequencies(); -} - -/*! - \obsolete - - Use supportedSampleRates() instead. -*/ - -QList<int> QAudioDeviceInfo::supportedFrequencies() const -{ - return isNull() ? QList<int>() : d->info->frequencyList(); -} - -/*! - Returns a list of supported channel counts. - - \since 4.7 -*/ - -QList<int> QAudioDeviceInfo::supportedChannelCounts() const -{ - return supportedChannels(); -} - -/*! - \obsolete - - Use supportedChannelCount() instead. -*/ - -QList<int> QAudioDeviceInfo::supportedChannels() const -{ - return isNull() ? QList<int>() : d->info->channelsList(); -} - -/*! - Returns a list of supported sample sizes. -*/ - -QList<int> QAudioDeviceInfo::supportedSampleSizes() const -{ - return isNull() ? QList<int>() : d->info->sampleSizeList(); -} - -/*! - Returns a list of supported byte orders. -*/ - -QList<QAudioFormat::Endian> QAudioDeviceInfo::supportedByteOrders() const -{ - return isNull() ? QList<QAudioFormat::Endian>() : d->info->byteOrderList(); -} - -/*! - Returns a list of supported sample types. -*/ - -QList<QAudioFormat::SampleType> QAudioDeviceInfo::supportedSampleTypes() const -{ - return isNull() ? QList<QAudioFormat::SampleType>() : d->info->sampleTypeList(); -} - -/*! - Returns the name of the default input audio device. - All platform and audio plugin implementations provide a default audio device to use. -*/ - -QAudioDeviceInfo QAudioDeviceInfo::defaultInputDevice() -{ - return QAudioDeviceFactory::defaultInputDevice(); -} - -/*! - Returns the name of the default output audio device. - All platform and audio plugin implementations provide a default audio device to use. -*/ - -QAudioDeviceInfo QAudioDeviceInfo::defaultOutputDevice() -{ - return QAudioDeviceFactory::defaultOutputDevice(); -} - -/*! - Returns a list of audio devices that support \a mode. -*/ - -QList<QAudioDeviceInfo> QAudioDeviceInfo::availableDevices(QAudio::Mode mode) -{ - return QAudioDeviceFactory::availableDevices(mode); -} - - -/*! - \internal -*/ - -QAudioDeviceInfo::QAudioDeviceInfo(const QString &realm, const QByteArray &handle, QAudio::Mode mode): - d(new QAudioDeviceInfoPrivate(realm, handle, mode)) -{ -} - -/*! - \internal -*/ - -QString QAudioDeviceInfo::realm() const -{ - return d->realm; -} - -/*! - \internal -*/ - -QByteArray QAudioDeviceInfo::handle() const -{ - return d->handle; -} - - -/*! - \internal -*/ - -QAudio::Mode QAudioDeviceInfo::mode() const -{ - return d->mode; -} - -QT_END_NAMESPACE - |