blender/intern/audaspace/FX/AUD_FaderReader.h
2011-02-25 10:21:56 +00:00

89 lines
2.1 KiB
C++

/*
* $Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* Copyright 2009-2011 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* Audaspace is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Audaspace; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file audaspace/FX/AUD_FaderReader.h
* \ingroup audfx
*/
#ifndef AUD_FADERREADER
#define AUD_FADERREADER
#include "AUD_EffectReader.h"
#include "AUD_Buffer.h"
/**
* This class fades another reader.
* If the fading type is AUD_FADE_IN, everything before the fading start will be
* silenced, for AUD_FADE_OUT that's true for everything after fading ends.
*/
class AUD_FaderReader : public AUD_EffectReader
{
private:
/**
* The fading type.
*/
const AUD_FadeType m_type;
/**
* The fading start.
*/
const float m_start;
/**
* The fading length.
*/
const float m_length;
/**
* The playback buffer.
*/
AUD_Buffer m_buffer;
/**
* Whether the buffer is empty.
*/
bool m_empty;
// hide copy constructor and operator=
AUD_FaderReader(const AUD_FaderReader&);
AUD_FaderReader& operator=(const AUD_FaderReader&);
public:
/**
* Creates a new fader reader.
* \param type The fading type.
* \param start The time where fading should start in seconds.
* \param length How long fading should last in seconds.
*/
AUD_FaderReader(AUD_IReader* reader, AUD_FadeType type,
float start,float length);
virtual void read(int & length, sample_t* & buffer);
};
#endif //AUD_FADERREADER