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/*
FFTease - A set of Live Spectral Processors
Originally written by Eric Lyon and Christopher Penrose for the Max/MSP platform
Copyright (c)Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
#include "main.h"
#include <stdlib.h>
class vacancy:
public fftease
{
FLEXT_HEADER_S(vacancy,fftease,setup)
public:
vacancy(I argc,const t_atom *argv);
protected:
virtual V Transform(I n,S *const *in);
V ms_thresh(F thr) { _threshold = FromdB(_threshdB = thr); }
V ms_userms(BL r) { if(r) _flags |= F_RMS; else _flags &= ~F_RMS; }
F _threshold,_threshdB;
BL _invert,_useRms,_swapPhase;
private:
static V setup(t_classid c);
FLEXT_ATTRGET_F(_threshdB)
FLEXT_CALLSET_F(ms_thresh)
FLEXT_ATTRVAR_B(_invert)
FLEXT_ATTRGET_B(_useRms)
FLEXT_CALLSET_B(ms_userms)
FLEXT_ATTRVAR_B(_swapPhase)
};
FLEXT_LIB_DSP_V("vacancy~",vacancy)
V vacancy::setup(t_classid c)
{
FLEXT_CADDATTR_VAR(c,"thresh",_threshdB,ms_thresh);
FLEXT_CADDATTR_VAR1(c,"invert",_invert);
FLEXT_CADDATTR_VAR(c,"rms",_useRms,ms_userms);
FLEXT_CADDATTR_VAR1(c,"swap",_swapPhase);
}
vacancy::vacancy(I argc,const t_atom *argv):
fftease(2,F_STEREO|F_BITSHUFFLE),
_threshdB(-30),_invert(false),_useRms(true),_swapPhase(false)
{
/* parse and set object's options given */
if(argc >= 1) {
if(CanbeFloat(argv[0]))
_threshdB = GetAFloat(argv[0]);
else
post("%s - Threshold must be a float value - set to %f",thisName(),_threshdB);
}
if(argc >= 2) {
if(CanbeBool(argv[1]))
_invert = GetABool(argv[1]);
else
post("%s - Invert must be a boolean value - set to %0i",thisName(),_invert?1:0);
}
if(argc >= 3) {
if(CanbeBool(argv[2]))
_useRms = GetABool(argv[2]);
else
post("%s - Rms flag must be a boolean value - set to %0i",thisName(),_useRms?1:0);
}
if(argc >= 4) {
if(CanbeBool(argv[3]))
_swapPhase = GetABool(argv[3]);
else
post("%s - Swapphase flag must be a boolean value - set to %0i",thisName(),_swapPhase?1:0);
}
ms_thresh(_threshdB);
ms_userms(_useRms);
AddInSignal("Messages and input signal");
AddInSignal("Reference signal");
AddOutSignal("Transformed signal");
}
V vacancy::Transform(I _N,S *const *)
{
const F useme = _useRms?_rms * _threshold:_threshold;
// composite here please
if (_invert) {
if (_swapPhase) {
for (I i=0; i < _N; i+=2 )
if ( _channel1[i] > useme && _channel2[i] < _channel1[i] ) {
_channel1[i] = _channel2[i];
_channel1[i+1] = _channel2[i+1];
}
}
else {
for (I i=0; i < _N; i+=2 )
if ( _channel1[i] > useme && _channel2[i] < _channel1[i] ) {
_channel1[i] = _channel2[i];
if ( _channel1[i+1] == 0. ) _channel1[i+1] = _channel2[i+1];
}
}
}
else {
if (_swapPhase) {
for (I i=0; i < _N; i+=2 )
if ( _channel1[i] < useme && _channel2[i] > _channel1[i] ) {
_channel1[i] = _channel2[i];
_channel1[i+1] = _channel2[i+1];
}
}
else {
for (I i=0; i < _N; i+=2 )
if ( _channel1[i] < useme && _channel2[i] > _channel1[i] ) {
_channel1[i] = _channel2[i];
if ( _channel1[i+1] == 0. ) _channel1[i+1] = _channel2[i+1];
}
}
}
}
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