diff options
Diffstat (limited to 'examples/multimedia/audiosource/audiosource.cpp')
| -rw-r--r-- | examples/multimedia/audiosource/audiosource.cpp | 154 |
1 files changed, 66 insertions, 88 deletions
diff --git a/examples/multimedia/audiosource/audiosource.cpp b/examples/multimedia/audiosource/audiosource.cpp index ef0379e02..48e33fa2d 100644 --- a/examples/multimedia/audiosource/audiosource.cpp +++ b/examples/multimedia/audiosource/audiosource.cpp @@ -1,70 +1,26 @@ -/**************************************************************************** -** -** Copyright (C) 2021 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2021 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #include "audiosource.h" -#include <stdlib.h> -#include <math.h> - +#include <QAudioDevice> +#include <QAudioSource> #include <QDateTime> #include <QDebug> +#include <QLabel> #include <QPainter> #include <QVBoxLayout> -#include <QAudioDevice> -#include <QAudioSource> -#include <qendian.h> +#include <QtEndian> -AudioInfo::AudioInfo(const QAudioFormat &format) - : m_format(format) -{ -} +#if QT_CONFIG(permissions) + #include <QCoreApplication> + #include <QPermission> +#endif + +#include <math.h> +#include <stdlib.h> + +AudioInfo::AudioInfo(const QAudioFormat &format) : m_format(format) { } void AudioInfo::start() { @@ -110,8 +66,7 @@ qint64 AudioInfo::writeData(const char *data, qint64 len) return len; } -RenderArea::RenderArea(QWidget *parent) - : QWidget(parent) +RenderArea::RenderArea(QWidget *parent) : QWidget(parent) { setBackgroundRole(QPalette::Base); setAutoFillBackground(true); @@ -132,8 +87,7 @@ void RenderArea::paintEvent(QPaintEvent * /* event */) return; const int pos = qRound(qreal(frame.width() - 1) * m_level); - painter.fillRect(frame.left() + 1, frame.top() + 1, - pos, frame.height() - 1, Qt::red); + painter.fillRect(frame.left() + 1, frame.top() + 1, pos, frame.height() - 1, Qt::red); } void RenderArea::setLevel(qreal value) @@ -142,12 +96,9 @@ void RenderArea::setLevel(qreal value) update(); } - -InputTest::InputTest() - : m_devices(new QMediaDevices(this)) +InputTest::InputTest() : m_devices(new QMediaDevices(this)) { - initializeWindow(); - initializeAudio(QMediaDevices::defaultAudioInput()); + init(); } void InputTest::initializeWindow() @@ -160,7 +111,7 @@ void InputTest::initializeWindow() m_deviceBox = new QComboBox(this); const QAudioDevice &defaultDeviceInfo = QMediaDevices::defaultAudioInput(); m_deviceBox->addItem(defaultDeviceInfo.description(), QVariant::fromValue(defaultDeviceInfo)); - for (auto &deviceInfo: m_devices->audioInputs()) { + for (auto &deviceInfo : m_devices->audioInputs()) { if (deviceInfo != defaultDeviceInfo) m_deviceBox->addItem(deviceInfo.description(), QVariant::fromValue(deviceInfo)); } @@ -191,18 +142,45 @@ void InputTest::initializeAudio(const QAudioDevice &deviceInfo) format.setSampleFormat(QAudioFormat::Int16); m_audioInfo.reset(new AudioInfo(format)); - connect(m_audioInfo.data(), &AudioInfo::levelChanged, - m_canvas, &RenderArea::setLevel); + connect(m_audioInfo.data(), &AudioInfo::levelChanged, m_canvas, &RenderArea::setLevel); m_audioInput.reset(new QAudioSource(deviceInfo, format)); - qreal initialVolume = QAudio::convertVolume(m_audioInput->volume(), - QAudio::LinearVolumeScale, + qreal initialVolume = QAudio::convertVolume(m_audioInput->volume(), QAudio::LinearVolumeScale, QAudio::LogarithmicVolumeScale); m_volumeSlider->setValue(qRound(initialVolume * 100)); m_audioInfo->start(); toggleMode(); } +void InputTest::initializeErrorWindow() +{ + QVBoxLayout *layout = new QVBoxLayout(this); + QLabel *errorLabel = new QLabel(tr("Microphone permission is not granted!")); + errorLabel->setWordWrap(true); + errorLabel->setAlignment(Qt::AlignCenter); + layout->addWidget(errorLabel); +} + +void InputTest::init() +{ +#if QT_CONFIG(permissions) + QMicrophonePermission microphonePermission; + switch (qApp->checkPermission(microphonePermission)) { + case Qt::PermissionStatus::Undetermined: + qApp->requestPermission(microphonePermission, this, &InputTest::init); + return; + case Qt::PermissionStatus::Denied: + qWarning("Microphone permission is not granted!"); + initializeErrorWindow(); + return; + case Qt::PermissionStatus::Granted: + break; + } +#endif + initializeWindow(); + initializeAudio(QMediaDevices::defaultAudioInput()); +} + void InputTest::toggleMode() { m_audioInput->stop(); @@ -218,18 +196,17 @@ void InputTest::toggleMode() if (!io) return; - connect(io, &QIODevice::readyRead, - [this, io]() { - static const qint64 BufferSize = 4096; - const qint64 len = qMin(m_audioInput->bytesAvailable(), BufferSize); - - QByteArray buffer(len, 0); - qint64 l = io->read(buffer.data(), len); - if (l > 0) { - const qreal level = m_audioInfo->calculateLevel(buffer.constData(), l); - m_canvas->setLevel(level); - } - }); + connect(io, &QIODevice::readyRead, [this, io]() { + static const qint64 BufferSize = 4096; + const qint64 len = qMin(m_audioInput->bytesAvailable(), BufferSize); + + QByteArray buffer(len, 0); + qint64 l = io->read(buffer.data(), len); + if (l > 0) { + const qreal level = m_audioInfo->calculateLevel(buffer.constData(), l); + m_canvas->setLevel(level); + } + }); } m_pullMode = !m_pullMode; @@ -256,18 +233,19 @@ void InputTest::toggleSuspend() void InputTest::deviceChanged(int index) { - m_audioInfo->stop(); m_audioInput->stop(); m_audioInput->disconnect(this); + m_audioInfo->stop(); initializeAudio(m_deviceBox->itemData(index).value<QAudioDevice>()); } void InputTest::sliderChanged(int value) { - qreal linearVolume = QAudio::convertVolume(value / qreal(100), - QAudio::LogarithmicVolumeScale, + qreal linearVolume = QAudio::convertVolume(value / qreal(100), QAudio::LogarithmicVolumeScale, QAudio::LinearVolumeScale); m_audioInput->setVolume(linearVolume); } + +#include "moc_audiosource.cpp" |