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Diffstat (limited to 'examples/multimedia/audio/audiodevices/audiodevices.cpp')
| -rw-r--r-- | examples/multimedia/audio/audiodevices/audiodevices.cpp | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/examples/multimedia/audio/audiodevices/audiodevices.cpp b/examples/multimedia/audio/audiodevices/audiodevices.cpp new file mode 100644 index 0000000..2a3af98 --- /dev/null +++ b/examples/multimedia/audio/audiodevices/audiodevices.cpp @@ -0,0 +1,272 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples 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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at http://www.qtsoftware.com/contact. +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <QDebug> +#include <QAudioDeviceInfo> + +#include "audiodevices.h" + +AudioDevicesBase::AudioDevicesBase( QMainWindow *parent, Qt::WFlags f ) +{ + Q_UNUSED(parent) + Q_UNUSED(f) + setupUi( this ); +} + +AudioDevicesBase::~AudioDevicesBase() {} + + +AudioTest::AudioTest( QMainWindow *parent, Qt::WFlags f ) + : AudioDevicesBase( parent, f ) +{ + mode = QAudio::AudioOutput; + modeBox->addItem("Input"); + modeBox->addItem("Output"); + + connect(testButton,SIGNAL(clicked()),SLOT(test())); + connect(modeBox,SIGNAL(activated(int)),SLOT(modeChanged(int))); + connect(deviceBox,SIGNAL(activated(int)),SLOT(deviceChanged(int))); + connect(frequencyBox,SIGNAL(activated(int)),SLOT(freqChanged(int))); + connect(channelsBox,SIGNAL(activated(int)),SLOT(channelChanged(int))); + connect(codecsBox,SIGNAL(activated(int)),SLOT(codecChanged(int))); + connect(sampleSizesBox,SIGNAL(activated(int)),SLOT(sampleSizeChanged(int))); + connect(sampleTypesBox,SIGNAL(activated(int)),SLOT(sampleTypeChanged(int))); + connect(endianBox,SIGNAL(activated(int)),SLOT(endianChanged(int))); + + device = 0; + + modeBox->setCurrentIndex(0); + modeChanged(0); + deviceBox->setCurrentIndex(0); + deviceChanged(0); +} + +AudioTest::~AudioTest() +{ +} + +void AudioTest::test() +{ + // tries to set all the settings picked. + + if(device) { + if(device->isFormatSupported(settings)) { + logOutput->append("Success"); + nearestFreq->setText(""); + nearestChannel->setText(""); + nearestCodec->setText(""); + nearestSampleSize->setText(""); + nearestSampleType->setText(""); + nearestEndian->setText(""); + } else { + QAudioFormat nearest = device->nearestFormat(settings); + logOutput->append(tr("Failed")); + nearestFreq->setText(QString("%1").arg(nearest.frequency())); + nearestChannel->setText(QString("%1").arg(nearest.channels())); + nearestCodec->setText(nearest.codec()); + nearestSampleSize->setText(QString("%1").arg(nearest.sampleSize())); + + switch(nearest.sampleType()) { + case QAudioFormat::SignedInt: + nearestSampleType->setText("SignedInt"); + break; + case QAudioFormat::UnSignedInt: + nearestSampleType->setText("UnSignedInt"); + break; + case QAudioFormat::Float: + nearestSampleType->setText("Float"); + break; + case QAudioFormat::Unknown: + nearestSampleType->setText("Unknown"); + } + switch(nearest.byteOrder()) { + case QAudioFormat::LittleEndian: + nearestEndian->setText("LittleEndian"); + break; + case QAudioFormat::BigEndian: + nearestEndian->setText("BigEndian"); + } + } + } + else + logOutput->append("No Device"); +} + +void AudioTest::modeChanged(int idx) +{ + // mode has changed + if(idx == 0) + mode=QAudio::AudioInput; + else + mode=QAudio::AudioOutput; + + deviceBox->clear(); + QList<QAudioDeviceId> devices = QAudioDeviceInfo::deviceList(mode); + for(int i = 0; i < devices.size(); ++i) { + deviceBox->addItem(QAudioDeviceInfo(devices.at(i)).deviceName(), qVariantFromValue(devices.at(i))); + } +} + +void AudioTest::deviceChanged(int idx) +{ + delete device; + device = 0; + + if (deviceBox->count() == 0) + return; + + // device has changed + deviceHandle = deviceBox->itemData(idx).value<QAudioDeviceId>(); + device = new QAudioDeviceInfo(deviceHandle, this); + + frequencyBox->clear(); + QList<int> freqz = device->supportedFrequencies(); + for(int i = 0; i < freqz.size(); ++i) + frequencyBox->addItem(QString("%1").arg(freqz.at(i))); + if(freqz.size()) + settings.setFrequency(freqz.at(0)); + + channelsBox->clear(); + QList<int> chz = device->supportedChannels(); + for(int i = 0; i < chz.size(); ++i) + channelsBox->addItem(QString("%1").arg(chz.at(i))); + if(chz.size()) + settings.setChannels(chz.at(0)); + + codecsBox->clear(); + QStringList codecz = device->supportedCodecs(); + for(int i = 0; i < codecz.size(); ++i) + codecsBox->addItem(QString("%1").arg(codecz.at(i))); + if(codecz.size()) + settings.setCodec(codecz.at(0)); + // Add false to create failed condition! + codecsBox->addItem("audio/mpeg"); + + sampleSizesBox->clear(); + QList<int> sampleSizez = device->supportedSampleSizes(); + for(int i = 0; i < sampleSizez.size(); ++i) + sampleSizesBox->addItem(QString("%1").arg(sampleSizez.at(i))); + if(sampleSizez.size()) + settings.setSampleSize(sampleSizez.at(0)); + + sampleTypesBox->clear(); + QList<QAudioFormat::SampleType> sampleTypez = device->supportedSampleTypes(); + for(int i = 0; i < sampleTypez.size(); ++i) { + switch(sampleTypez.at(i)) { + case QAudioFormat::SignedInt: + sampleTypesBox->addItem("SignedInt"); + break; + case QAudioFormat::UnSignedInt: + sampleTypesBox->addItem("UnSignedInt"); + break; + case QAudioFormat::Float: + sampleTypesBox->addItem("Float"); + break; + case QAudioFormat::Unknown: + sampleTypesBox->addItem("Unknown"); + } + if(sampleTypez.size()) + settings.setSampleType(sampleTypez.at(0)); + } + + endianBox->clear(); + QList<QAudioFormat::Endian> endianz = device->supportedByteOrders(); + for(int i = 0; i < endianz.size(); ++i) { + switch(endianz.at(i)) { + case QAudioFormat::LittleEndian: + endianBox->addItem("Little Endian"); + break; + case QAudioFormat::BigEndian: + endianBox->addItem("Big Endian"); + break; + } + } + if(endianz.size()) + settings.setByteOrder(endianz.at(0)); +} + +void AudioTest::freqChanged(int idx) +{ + // freq has changed + settings.setFrequency(frequencyBox->itemText(idx).toInt()); +} + +void AudioTest::channelChanged(int idx) +{ + settings.setChannels(channelsBox->itemText(idx).toInt()); +} + +void AudioTest::codecChanged(int idx) +{ + settings.setCodec(codecsBox->itemText(idx)); +} + +void AudioTest::sampleSizeChanged(int idx) +{ + settings.setSampleSize(sampleSizesBox->itemText(idx).toInt()); +} + +void AudioTest::sampleTypeChanged(int idx) +{ + switch(sampleTypesBox->itemText(idx).toInt()) { + case QAudioFormat::SignedInt: + settings.setSampleType(QAudioFormat::SignedInt); + break; + case QAudioFormat::UnSignedInt: + settings.setSampleType(QAudioFormat::UnSignedInt); + break; + case QAudioFormat::Float: + settings.setSampleType(QAudioFormat::Float); + } +} + +void AudioTest::endianChanged(int idx) +{ + switch(endianBox->itemText(idx).toInt()) { + case QAudioFormat::LittleEndian: + settings.setByteOrder(QAudioFormat::LittleEndian); + break; + case QAudioFormat::BigEndian: + settings.setByteOrder(QAudioFormat::BigEndian); + } +} + |