diff options
Diffstat (limited to 'examples/multimedia/spectrum/utils.cpp')
-rw-r--r-- | examples/multimedia/spectrum/utils.cpp | 69 |
1 files changed, 11 insertions, 58 deletions
diff --git a/examples/multimedia/spectrum/utils.cpp b/examples/multimedia/spectrum/utils.cpp index 2a6b2a33e..3b4146a51 100644 --- a/examples/multimedia/spectrum/utils.cpp +++ b/examples/multimedia/spectrum/utils.cpp @@ -1,55 +1,8 @@ -/**************************************************************************** -** -** Copyright (C) 2017 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) 2017 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause -#include <QAudioFormat> #include "utils.h" +#include <QAudioFormat> qreal nyquistFrequency(const QAudioFormat &format) { @@ -81,7 +34,7 @@ QString formatToString(const QAudioFormat &format) break; } - QString formatChannels = QString("%1 channels").arg(format.channelCount()); + QString formatChannels = QStringLiteral("%1 channels").arg(format.channelCount()); switch (format.channelCount()) { case 1: formatChannels = "mono"; @@ -91,18 +44,18 @@ QString formatToString(const QAudioFormat &format) break; } - result = QString("%1 Hz %2 bit %3 %4") - .arg(format.sampleRate()) - .arg(format.bytesPerSample() * 8) - .arg(formatType) - .arg(formatChannels); + result = QStringLiteral("%1 Hz %2 bit %3 %4") + .arg(format.sampleRate()) + .arg(format.bytesPerSample() * 8) + .arg(formatType) + .arg(formatChannels); } return result; } -const qint16 PCMS16MaxValue = 32767; -const quint16 PCMS16MaxAmplitude = 32768; // because minimum is -32768 +const qint16 PCMS16MaxValue = 32767; +const quint16 PCMS16MaxAmplitude = 32768; // because minimum is -32768 qreal pcmToReal(qint16 pcm) { |