1 /***************************************************************************
2 * Copyright (C) 2010 by Simon Andreas Eugster (simon.eu@gmail.com) *
3 * This file is part of kdenlive. See www.kdenlive.org. *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 ***************************************************************************/
11 #ifndef ABSTRACTAUDIOSCOPEWIDGET_H
12 #define ABSTRACTAUDIOSCOPEWIDGET_H
19 #include "../abstractscopewidget.h"
25 \brief Abstract class for scopes analyzing audio samples.
27 class AbstractAudioScopeWidget : public AbstractScopeWidget
31 explicit AbstractAudioScopeWidget(bool trackMouse = false, QWidget *parent = 0);
32 virtual ~AbstractAudioScopeWidget();
35 void slotReceiveAudio(const QVector<int16_t> &sampleData, int freq, int num_channels, int num_samples);
38 /** @brief This is just a wrapper function, subclasses can use renderAudioScope. */
39 virtual QImage renderScope(uint accelerationFactor);
41 ///// Unimplemented Methods /////
42 /** @brief Scope renderer. Must emit signalScopeRenderingFinished()
43 when calculation has finished, to allow multi-threading.
44 accelerationFactor hints how much faster than usual the calculation should be accomplished, if possible. */
45 virtual QImage renderAudioScope(uint accelerationFactor,
46 const QVector<int16_t> &audioFrame, const int freq, const int num_channels, const int num_samples,
47 const int newData) = 0;
54 QVector<int16_t> m_audioFrame;
59 #endif // ABSTRACTAUDIOSCOPEWIDGET_H