mirror of
https://github.com/cookiengineer/audacity
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4ce2643d5f
// Indentation settings for Vim and Emacs etc. lines from all files, as Campbell's patch (except for other changes to Languages.cpp)
65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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Fade.cpp
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Robert Leidle
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*******************************************************************//**
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\class EffectFadeIn
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\brief An EffectSimpleMono
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*//****************************************************************//**
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\class EffectFadeOut
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\brief An EffectSimpleMono
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*//*******************************************************************/
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#include "../Audacity.h"
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#include "Fade.h"
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#include "../WaveTrack.h"
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#include <wx/generic/textdlgg.h>
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#include <math.h>
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bool EffectFadeIn::NewTrackSimpleMono()
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{
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mLen = (int)((mCurT1 - mCurT0) * mCurRate + 0.5);
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mSample = 0;
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return true;
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}
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bool EffectFadeIn::ProcessSimpleMono(float *buffer, sampleCount len)
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{
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for (sampleCount i = 0; i < len; i++)
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buffer[i] = (float) (buffer[i] * (float) (mSample + i)
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/ (float) (mLen));
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mSample += len;
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return true;
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}
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bool EffectFadeOut::NewTrackSimpleMono()
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{
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mLen = (int)((mCurT1 - mCurT0) * mCurRate + 0.5);
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mSample = 0;
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return true;
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}
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bool EffectFadeOut::ProcessSimpleMono(float *buffer, sampleCount len)
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{
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for (sampleCount i = 0; i < len; i++)
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buffer[i] = (float) (buffer[i]
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* (float) (mLen - 1 - (mSample + i))
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/ (float) (mLen));
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mSample += len;
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return true;
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}
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