diff options
Diffstat (limited to 'examples/multimedia/spectrum/spectrumanalyser.h')
| -rw-r--r-- | examples/multimedia/spectrum/spectrumanalyser.h | 113 |
1 files changed, 29 insertions, 84 deletions
diff --git a/examples/multimedia/spectrum/spectrumanalyser.h b/examples/multimedia/spectrum/spectrumanalyser.h index 799143489..202e602fe 100644 --- a/examples/multimedia/spectrum/spectrumanalyser.h +++ b/examples/multimedia/spectrum/spectrumanalyser.h @@ -1,71 +1,24 @@ -/**************************************************************************** -** -** 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 #ifndef SPECTRUMANALYSER_H #define SPECTRUMANALYSER_H +#include "frequencyspectrum.h" +#include "spectrum.h" + #include <QByteArray> -#include <QObject> #include <QList> +#include <QObject> #ifdef DUMP_SPECTRUMANALYSER -#include <QDir> -#include <QFile> -#include <QTextStream> +# include <QDir> +# include <QFile> +# include <QTextStream> #endif -#include "frequencyspectrum.h" -#include "spectrum.h" - #ifndef DISABLE_FFT -#include "FFTRealFixLenParam.h" +# include "FFTRealFixLenParam.h" #endif QT_FORWARD_DECLARE_CLASS(QAudioFormat) @@ -89,9 +42,7 @@ public: public slots: void setWindowFunction(WindowFunction type); - void calculateSpectrum(const QByteArray &buffer, - int inputFrequency, - int bytesPerSample); + void calculateSpectrum(const QByteArray &buffer, int inputFrequency, int bytesPerSample); signals: void calculationComplete(const FrequencySpectrum &spectrum); @@ -101,27 +52,27 @@ private: private: #ifndef DISABLE_FFT - FFTRealWrapper* m_fft; + FFTRealWrapper *m_fft; #endif - const int m_numSamples; + const int m_numSamples; - WindowFunction m_windowFunction; + WindowFunction m_windowFunction; #ifdef DISABLE_FFT - typedef qreal DataType; + typedef qreal DataType; #else - typedef FFTRealFixLenParam::DataType DataType; + typedef FFTRealFixLenParam::DataType DataType; #endif - QList<DataType> m_window; + QList<DataType> m_window; - QList<DataType> m_input; - QList<DataType> m_output; + QList<DataType> m_input; + QList<DataType> m_output; - FrequencySpectrum m_spectrum; + FrequencySpectrum m_spectrum; #ifdef SPECTRUM_ANALYSER_SEPARATE_THREAD - QThread* m_thread; + QThread *m_thread; #endif }; @@ -134,7 +85,7 @@ class SpectrumAnalyser : public QObject Q_OBJECT public: - SpectrumAnalyser(QObject *parent = 0); + SpectrumAnalyser(QObject *parent = nullptr); ~SpectrumAnalyser(); #ifdef DUMP_SPECTRUMANALYSER @@ -183,24 +134,18 @@ private: void calculateWindow(); private: + SpectrumAnalyserThread *m_thread; - SpectrumAnalyserThread* m_thread; + enum State { Idle, Busy, Cancelled }; - enum State { - Idle, - Busy, - Cancelled - }; - - State m_state; + State m_state; #ifdef DUMP_SPECTRUMANALYSER - QDir m_outputDir; - int m_count; - QFile m_textFile; - QTextStream m_textStream; + QDir m_outputDir; + int m_count; + QFile m_textFile; + QTextStream m_textStream; #endif }; #endif // SPECTRUMANALYSER_H - |