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Diffstat (limited to 'examples/multimedia/audiodevices/audiodevices.cpp')
| -rw-r--r-- | examples/multimedia/audiodevices/audiodevices.cpp | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/examples/multimedia/audiodevices/audiodevices.cpp b/examples/multimedia/audiodevices/audiodevices.cpp new file mode 100644 index 000000000..2892e981f --- /dev/null +++ b/examples/multimedia/audiodevices/audiodevices.cpp @@ -0,0 +1,311 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "audiodevices.h" + +// Utility functions for converting QAudioFormat fields into text + +static QString toString(QAudioFormat::SampleType sampleType) +{ + QString result("Unknown"); + switch (sampleType) { + case QAudioFormat::SignedInt: + result = "SignedInt"; + break; + case QAudioFormat::UnSignedInt: + result = "UnSignedInt"; + break; + case QAudioFormat::Float: + result = "Float"; + break; + case QAudioFormat::Unknown: + result = "Unknown"; + } + return result; +} + +static QString toString(QAudioFormat::Endian endian) +{ + QString result("Unknown"); + switch (endian) { + case QAudioFormat::LittleEndian: + result = "LittleEndian"; + break; + case QAudioFormat::BigEndian: + result = "BigEndian"; + break; + } + return result; +} + + +AudioDevicesBase::AudioDevicesBase(QWidget *parent) + : QMainWindow(parent) +{ + setupUi(this); +} + +AudioDevicesBase::~AudioDevicesBase() {} + + +AudioTest::AudioTest(QWidget *parent) + : AudioDevicesBase(parent) +{ + mode = QAudio::AudioOutput; + + connect(testButton, SIGNAL(clicked()), SLOT(test())); + connect(modeBox, SIGNAL(activated(int)), SLOT(modeChanged(int))); + connect(deviceBox, SIGNAL(activated(int)), SLOT(deviceChanged(int))); + connect(sampleRateBox, SIGNAL(activated(int)), SLOT(sampleRateChanged(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))); + connect(populateTableButton, SIGNAL(clicked()), SLOT(populateTable())); + + modeBox->setCurrentIndex(0); + modeChanged(0); + deviceBox->setCurrentIndex(0); + deviceChanged(0); +} + +AudioTest::~AudioTest() +{ +} + +void AudioTest::test() +{ + // tries to set all the settings picked. + testResult->clear(); + + if (!deviceInfo.isNull()) { + if (deviceInfo.isFormatSupported(settings)) { + testResult->setText(tr("Success")); + nearestSampleRate->setText(""); + nearestChannel->setText(""); + nearestCodec->setText(""); + nearestSampleSize->setText(""); + nearestSampleType->setText(""); + nearestEndian->setText(""); + } else { + QAudioFormat nearest = deviceInfo.nearestFormat(settings); + testResult->setText(tr("Failed")); + nearestSampleRate->setText(QString("%1").arg(nearest.sampleRate())); + nearestChannel->setText(QString("%1").arg(nearest.channelCount())); + nearestCodec->setText(nearest.codec()); + nearestSampleSize->setText(QString("%1").arg(nearest.sampleSize())); + nearestSampleType->setText(toString(nearest.sampleType())); + nearestEndian->setText(toString(nearest.byteOrder())); + } + } + else + testResult->setText(tr("No Device")); +} + +void AudioTest::modeChanged(int idx) +{ + testResult->clear(); + + // mode has changed + if (idx == 0) + mode = QAudio::AudioInput; + else + mode = QAudio::AudioOutput; + + deviceBox->clear(); + foreach (const QAudioDeviceInfo &deviceInfo, QAudioDeviceInfo::availableDevices(mode)) + deviceBox->addItem(deviceInfo.deviceName(), qVariantFromValue(deviceInfo)); + + deviceBox->setCurrentIndex(0); + deviceChanged(0); +} + +void AudioTest::deviceChanged(int idx) +{ + testResult->clear(); + + if (deviceBox->count() == 0) + return; + + // device has changed + deviceInfo = deviceBox->itemData(idx).value<QAudioDeviceInfo>(); + + sampleRateBox->clear(); + QList<int> sampleRatez = deviceInfo.supportedSampleRates(); + for (int i = 0; i < sampleRatez.size(); ++i) + sampleRateBox->addItem(QString("%1").arg(sampleRatez.at(i))); + if (sampleRatez.size()) + settings.setSampleRate(sampleRatez.at(0)); + + channelsBox->clear(); + QList<int> chz = deviceInfo.supportedChannelCounts(); + for (int i = 0; i < chz.size(); ++i) + channelsBox->addItem(QString("%1").arg(chz.at(i))); + if (chz.size()) + settings.setChannelCount(chz.at(0)); + + codecsBox->clear(); + QStringList codecs = deviceInfo.supportedCodecs(); + for (int i = 0; i < codecs.size(); ++i) + codecsBox->addItem(QString("%1").arg(codecs.at(i))); + if (codecs.size()) + settings.setCodec(codecs.at(0)); + // Add false to create failed condition! + codecsBox->addItem("audio/test"); + + sampleSizesBox->clear(); + QList<int> sampleSizez = deviceInfo.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 = deviceInfo.supportedSampleTypes(); + + for (int i = 0; i < sampleTypez.size(); ++i) + sampleTypesBox->addItem(toString(sampleTypez.at(i))); + if (sampleTypez.size()) + settings.setSampleType(sampleTypez.at(0)); + + endianBox->clear(); + QList<QAudioFormat::Endian> endianz = deviceInfo.supportedByteOrders(); + for (int i = 0; i < endianz.size(); ++i) + endianBox->addItem(toString(endianz.at(i))); + if (endianz.size()) + settings.setByteOrder(endianz.at(0)); + + allFormatsTable->clearContents(); +} + +void AudioTest::populateTable() +{ + int row = 0; + + QAudioFormat format; + foreach (QString codec, deviceInfo.supportedCodecs()) { + format.setCodec(codec); + foreach (int sampleRate, deviceInfo.supportedSampleRates()) { + format.setSampleRate(sampleRate); + foreach (int channels, deviceInfo.supportedChannelCounts()) { + format.setChannelCount(channels); + foreach (QAudioFormat::SampleType sampleType, deviceInfo.supportedSampleTypes()) { + format.setSampleType(sampleType); + foreach (int sampleSize, deviceInfo.supportedSampleSizes()) { + format.setSampleSize(sampleSize); + foreach (QAudioFormat::Endian endian, deviceInfo.supportedByteOrders()) { + format.setByteOrder(endian); + if (deviceInfo.isFormatSupported(format)) { + allFormatsTable->setRowCount(row + 1); + + QTableWidgetItem *codecItem = new QTableWidgetItem(format.codec()); + allFormatsTable->setItem(row, 0, codecItem); + + QTableWidgetItem *sampleRateItem = new QTableWidgetItem(QString("%1").arg(format.sampleRate())); + allFormatsTable->setItem(row, 1, sampleRateItem); + + QTableWidgetItem *channelsItem = new QTableWidgetItem(QString("%1").arg(format.channelCount())); + allFormatsTable->setItem(row, 2, channelsItem); + + QTableWidgetItem *sampleTypeItem = new QTableWidgetItem(toString(format.sampleType())); + allFormatsTable->setItem(row, 3, sampleTypeItem); + + QTableWidgetItem *sampleSizeItem = new QTableWidgetItem(QString("%1").arg(format.sampleSize())); + allFormatsTable->setItem(row, 4, sampleSizeItem); + + QTableWidgetItem *byteOrderItem = new QTableWidgetItem(toString(format.byteOrder())); + allFormatsTable->setItem(row, 5, byteOrderItem); + + ++row; + } + } + } + } + } + } + } +} + +void AudioTest::sampleRateChanged(int idx) +{ + // sample rate has changed + settings.setSampleRate(sampleRateBox->itemText(idx).toInt()); +} + +void AudioTest::channelChanged(int idx) +{ + settings.setChannelCount(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); + } +} |