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-rw-r--r--bthresher~.c625
1 files changed, 625 insertions, 0 deletions
diff --git a/bthresher~.c b/bthresher~.c
new file mode 100644
index 0000000..050ca2a
--- /dev/null
+++ b/bthresher~.c
@@ -0,0 +1,625 @@
+#include "MSPd.h"
+#include "fftease.h"
+
+#if MSP
+void *bthresher_class;
+#endif
+
+#if PD
+static t_class *bthresher_class;
+#endif
+
+#define OBJECT_NAME "bthresher~"
+
+typedef struct _bthresher
+{
+#if MSP
+ t_pxobject x_obj;
+#endif
+#if PD
+ t_object x_obj;
+ float x_f;
+#endif
+ int R;
+ int N;
+ int N2;
+ int Nw;
+ int Nw2;
+ int D;
+ int i;
+ int in_count;
+ float *Wanal;
+ float *Wsyn;
+ float *input;
+ float *Hwin;
+ float *buffer;
+ float *channel;
+ float *output;
+ /* bthresher vars */
+ float *move_threshold;
+ float *composite_frame ;
+ int *frames_left;
+ int max_hold_frames;
+ float max_hold_time;
+ int first_frame;
+ float *damping_factor ;
+ float thresh_scalar;
+ float damp_scalar;
+ short thresh_connected;
+ short damping_connected;
+ void *list_outlet;
+ void *misc_outlet;
+ t_atom *list_data;
+
+ // for convert
+ float *c_lastphase_in;
+ float *c_lastphase_out;
+ float c_fundamental;
+ float c_factor_in;
+ float c_factor_out;
+ // for fast fft
+ float mult;
+ float *trigland;
+ int *bitshuffle;
+ short mute;
+ short bypass;
+ float init_thresh;
+ float init_damping;
+ int overlap;
+ int winfac;
+ float tadv;
+ short inf_hold;
+} t_bthresher;
+
+
+void *bthresher_new(t_symbol *s, int argc, t_atom *argv);
+t_int *offset_perform(t_int *w);
+t_int *bthresher_perform(t_int *w);
+void bthresher_dsp(t_bthresher *x, t_signal **sp, short *count);
+void bthresher_assist(t_bthresher *x, void *b, long m, long a, char *s);
+void bthresher_float(t_bthresher *x, double f);
+void bthresher_mute(t_bthresher *x, t_floatarg f);
+void bthresher_bypass(t_bthresher *x, t_floatarg f);
+void bthresher_overlap(t_bthresher *x, t_floatarg f);
+void bthresher_winfac(t_bthresher *x, t_floatarg f);
+void bthresher_fftinfo(t_bthresher *x);
+void bthresher_free(t_bthresher *x);
+void bthresher_bin(t_bthresher *x, t_floatarg bin_num, t_floatarg threshold, t_floatarg damper);
+void bthresher_rdamper(t_bthresher *x, t_floatarg min, t_floatarg max );
+void bthresher_rthreshold(t_bthresher *x, t_floatarg min, t_floatarg max);
+void bthresher_dump(t_bthresher *x );
+void bthresher_list (t_bthresher *x, t_symbol *msg, short argc, t_atom *argv);
+void bthresher_init(t_bthresher *x, short initialized);
+float bthresher_boundrand(float min, float max);
+void bthresher_allthresh(t_bthresher *x, t_floatarg f);
+void bthresher_alldamp(t_bthresher *x, t_floatarg f);
+void bthresher_inf_hold(t_bthresher *x, t_floatarg f);
+void bthresher_max_hold(t_bthresher *x, t_floatarg f);
+
+#if MSP
+void main(void)
+{
+ setup((t_messlist **)&bthresher_class, (method)bthresher_new, (method)bthresher_free,
+ (short)sizeof(t_bthresher), 0, A_GIMME, 0);
+ addmess((method)bthresher_dsp, "dsp", A_CANT, 0);
+ addmess((method)bthresher_assist,"assist",A_CANT,0);
+ addmess((method)bthresher_mute,"mute",A_FLOAT,0);
+ addmess((method)bthresher_bypass,"bypass",A_FLOAT,0);
+ addmess((method)bthresher_overlap,"overlap",A_FLOAT,0);
+ addmess((method)bthresher_winfac,"winfac",A_FLOAT,0);
+ addmess((method)bthresher_fftinfo,"fftinfo",0);
+ addmess ((method)bthresher_bin, "bin", A_FLOAT, A_FLOAT, A_FLOAT, 0);
+ addmess ((method)bthresher_rdamper, "rdamper", A_DEFFLOAT, A_DEFFLOAT, 0);
+ addmess ((method)bthresher_rthreshold, "rthreshold", A_DEFFLOAT, A_DEFFLOAT, 0);
+ addmess((method)bthresher_dump,"dump",0);
+ addmess((method)bthresher_list,"list",A_GIMME,0);
+ addmess((method)bthresher_alldamp,"alldamp",A_FLOAT,0);
+ addmess((method)bthresher_allthresh,"allthresh",A_FLOAT,0);
+ addmess((method)bthresher_inf_hold,"inf_hold",A_FLOAT,0);
+ addmess((method)bthresher_max_hold,"max_hold",A_FLOAT,0);
+ addfloat((method)bthresher_float);
+ dsp_initclass();
+ post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+#if PD
+void bthresher_tilde_setup(void){
+ bthresher_class = class_new(gensym("bthresher~"), (t_newmethod)bthresher_new,
+ (t_method)bthresher_free ,sizeof(t_bthresher), 0,A_GIMME,0);
+ CLASS_MAINSIGNALIN(bthresher_class, t_bthresher, x_f);
+ class_addmethod(bthresher_class,(t_method)bthresher_dsp,gensym("dsp"),0);
+ class_addmethod(bthresher_class,(t_method)bthresher_mute,gensym("mute"),A_FLOAT,0);
+ class_addmethod(bthresher_class,(t_method)bthresher_bypass,gensym("bypass"),A_FLOAT,0);
+ class_addmethod(bthresher_class,(t_method)bthresher_overlap,gensym("overlap"),A_FLOAT,0);
+ class_addmethod(bthresher_class,(t_method)bthresher_winfac,gensym("winfac"),A_FLOAT,0);
+ class_addmethod(bthresher_class,(t_method)bthresher_fftinfo,gensym("fftinfo"),0);
+ class_addmethod(bthresher_class,(t_method)bthresher_rdamper,gensym("rdamper"),A_FLOAT,A_FLOAT,0);
+ class_addmethod(bthresher_class,(t_method)bthresher_rthreshold,gensym("rthreshold"),A_FLOAT,A_FLOAT,0);
+ class_addmethod(bthresher_class,(t_method)bthresher_dump,gensym("dump"),0);
+ class_addmethod(bthresher_class,(t_method)bthresher_list,gensym("list"),A_GIMME,0);
+ class_addmethod(bthresher_class,(t_method)bthresher_alldamp,gensym("alldamp"),A_FLOAT,0);
+ class_addmethod(bthresher_class,(t_method)bthresher_allthresh,gensym("allthresh"),A_FLOAT,0);
+ class_addmethod(bthresher_class,(t_method)bthresher_inf_hold,gensym("inf_hold"),A_FLOAT,0);
+ class_addmethod(bthresher_class,(t_method)bthresher_max_hold,gensym("max_hold"),A_FLOAT,0);
+ class_addmethod(bthresher_class,(t_method)bthresher_bin,gensym("bin"),A_FLOAT,A_FLOAT,A_FLOAT,0);
+ post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+
+void bthresher_fftinfo( t_bthresher *x )
+{
+ if( ! x->overlap ){
+ post("zero overlap!");
+ return;
+ }
+ post("%s: FFT size %d, hopsize %d, windowsize %d", OBJECT_NAME, x->N, x->N/x->overlap, x->Nw);
+}
+
+void bthresher_free( t_bthresher *x ){
+#if MSP
+ dsp_free( (t_pxobject *) x);
+#endif
+
+
+ freebytes(x->Wanal,0);
+ freebytes(x->Wsyn,0);
+ freebytes(x->Hwin,0);
+ freebytes(x->buffer,0);
+ freebytes(x->channel,0);
+ freebytes(x->input,0);
+ freebytes(x->output,0);
+ freebytes(x->trigland,0);
+ freebytes(x->bitshuffle,0);
+ /* full phase vocoder */
+ freebytes(x->c_lastphase_in,0);
+ freebytes(x->c_lastphase_out,0);
+ /* external-specific memory */
+ freebytes(x->composite_frame,0);
+ freebytes(x->frames_left,0);
+ freebytes(x->move_threshold,0);
+ freebytes(x->damping_factor,0);
+ freebytes(x->list_data,0);
+}
+
+void bthresher_max_hold(t_bthresher *x, t_floatarg f)
+{
+ if(f<=0)
+ return;
+ x->max_hold_time = f * .001;
+ x->max_hold_frames = x->max_hold_time / x->tadv;
+}
+
+void bthresher_inf_hold(t_bthresher *x, t_floatarg f)
+{
+ x->inf_hold = (int)f;
+}
+
+void bthresher_allthresh(t_bthresher *x, t_floatarg f)
+{
+int i;
+//post("thresh %f",f);
+ for(i=0;i<x->N2+1;i++)
+ x->move_threshold[i] = f;
+}
+
+void bthresher_alldamp(t_bthresher *x, t_floatarg f)
+{
+int i;
+//post("damp %f",f);
+ for(i=0;i<x->N2+1;i++)
+ x->damping_factor[i] = f;
+}
+
+void bthresher_overlap(t_bthresher *x, t_floatarg f)
+{
+int i = (int) f;
+ if(!power_of_two(i)){
+ error("%f is not a power of two",f);
+ return;
+ }
+ x->overlap = i;
+ bthresher_init(x,1);
+}
+
+void bthresher_winfac(t_bthresher *x, t_floatarg f)
+{
+int i = (int)f;
+
+ if(!power_of_two(i)){
+ error("%f is not a power of two",f);
+ return;
+ }
+ x->winfac = i;
+ bthresher_init(x,2);
+}
+
+void bthresher_mute(t_bthresher *x, t_floatarg f){
+ x->mute = f;
+}
+void bthresher_bypass(t_bthresher *x, t_floatarg f){
+ x->bypass = f;
+}
+
+void bthresher_assist (t_bthresher *x, void *b, long msg, long arg, char *dst)
+{
+ if (msg==1) {
+ switch (arg) {
+ case 0:sprintf(dst,"(signal) Input");break;
+ case 1:sprintf(dst,"(signal/float) Threshold Scalar");break;
+ case 2:sprintf(dst,"(signal/float) Damping Factor Scalar");break;
+ }
+ } else if (msg==2) {
+ switch (arg) {
+ case 0:sprintf(dst,"(signal) Output");break;
+ case 1:sprintf(dst,"(list) Current State");break;
+ }
+ }
+}
+
+void bthresher_list (t_bthresher *x, t_symbol *msg, short argc, t_atom *argv) {
+ int i, bin, idiv;
+ float fdiv;
+ float *damping_factor = x->damping_factor;
+ float *move_threshold = x->move_threshold;
+
+ // post("reading %d elements", argc);
+ idiv = fdiv = (float) argc / 3.0 ;
+ if( fdiv - idiv > 0.0 ) {
+ post("list must be in triplets");
+ return;
+ }
+/* for( i = 0; i < x->N2+1; i++) {
+ move_threshold[i] = 0.0 ;
+ }*/
+
+ for( i = 0; i < argc; i += 3 ) {
+ bin = atom_getintarg(i,argc,argv);
+ damping_factor[bin] = atom_getfloatarg(i+1,argc,argv);
+ move_threshold[bin] = atom_getfloatarg(i+2,argc,argv);
+/* bin = argv[i].a_w.w_long ;
+ damping_factor[bin] = argv[i + 1].a_w.w_float;
+ move_threshold[bin] = argv[i + 2].a_w.w_float;*/
+ }
+}
+
+void bthresher_dump (t_bthresher *x) {
+
+ t_atom *list_data = x->list_data;
+ float *damping_factor = x->damping_factor;
+ float *move_threshold = x->move_threshold;
+
+ int i,j, count;
+#if MSP
+ for( i = 0, j = 0; i < x->N2 * 3 ; i += 3, j++ ) {
+ SETLONG(list_data+i,j);
+ SETFLOAT(list_data+(i+1),damping_factor[j]);
+ SETFLOAT(list_data+(i+2),move_threshold[j]);
+ }
+#endif
+
+#if PD
+ for( i = 0, j = 0; i < x->N2 * 3 ; i += 3, j++ ) {
+ SETFLOAT(list_data+i,(float)j);
+ SETFLOAT(list_data+(i+1),damping_factor[j]);
+ SETFLOAT(list_data+(i+2),move_threshold[j]);
+ }
+#endif
+
+ count = x->N2 * 3;
+ outlet_list(x->list_outlet,0,count,list_data);
+
+ return;
+}
+
+void *bthresher_new(t_symbol *s, int argc, t_atom *argv)
+{
+#if MSP
+ t_bthresher *x = (t_bthresher *)newobject(bthresher_class);
+ x->list_outlet = listout((t_pxobject *)x);
+ dsp_setup((t_pxobject *)x,3);
+ outlet_new((t_pxobject *)x, "signal");
+#endif
+
+#if PD
+ t_bthresher *x = (t_bthresher *)pd_new(bthresher_class);
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("signal"), gensym("signal"));
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("signal"), gensym("signal"));
+ outlet_new(&x->x_obj, gensym("signal"));
+ x->list_outlet = outlet_new(&x->x_obj,gensym("list"));
+#endif
+
+
+ x->D = sys_getblksize();
+ x->R = sys_getsr();
+
+ x->init_thresh = atom_getfloatarg(0,argc,argv);
+ x->init_damping = atom_getfloatarg(1,argc,argv);
+ x->overlap = atom_getintarg(2,argc,argv);
+ x->winfac = atom_getintarg(3,argc,argv);
+
+ bthresher_init(x,0);
+
+
+
+ return (x);
+}
+
+void bthresher_init(t_bthresher *x, short initialized)
+{
+int i;
+
+ if(!x->D)
+ x->D = 256;
+ if(!x->R)
+ x->R = 44100;
+ if(!power_of_two(x->overlap))
+ x->overlap = 4;
+ if(!power_of_two(x->winfac))
+ x->winfac = 1;
+
+ x->N = x->D * x->overlap;
+ x->Nw = x->N * x->winfac;
+
+limit_fftsize(&x->N,&x->Nw,OBJECT_NAME);
+
+ x->mult = 1. / (float) x->N;
+ x->N2 = (x->N)>>1;
+ x->Nw2 = (x->Nw)>>1;
+ x->in_count = -(x->Nw);
+ x->c_fundamental = (float) x->R/((x->N2)<<1 );
+ x->c_factor_in = (float) x->R/((float)x->D * TWOPI);
+ x->c_factor_out = TWOPI * (float) x->D / (float) x->R;
+
+ if(!initialized){
+ x->first_frame = 1;
+ x->max_hold_time = 60.0 ;
+ x->thresh_connected = 0;
+ x->damping_connected = 0;
+ x->thresh_scalar = 1;
+ x->damp_scalar = 1;
+ x->mute = 0;
+ x->bypass = 0;
+ x->inf_hold = 0;
+ x->Wanal = (float *) getbytes((MAX_Nw) * sizeof(float));
+ x->Wsyn = (float *) getbytes((MAX_Nw) * sizeof(float));
+ x->Hwin = (float *) getbytes((MAX_Nw) * sizeof(float));
+ x->input = (float *) getbytes((MAX_Nw) * sizeof(float));
+ x->buffer = (float *) getbytes((MAX_N) * sizeof(float));
+ x->channel = (float *) getbytes(((MAX_N+2)) * sizeof(float));
+ x->output = (float *) getbytes((MAX_Nw) * sizeof(float));
+ x->bitshuffle = (int *) getbytes((MAX_N * 2) * sizeof(int));
+ x->trigland = (float *) getbytes((MAX_N * 2) * sizeof(float));
+
+ x->c_lastphase_in = (float *) getbytes((MAX_N2+1)* sizeof(float));
+ x->c_lastphase_out = (float *) getbytes((MAX_N2+1)* sizeof(float));
+
+ x->composite_frame = (float *) getbytes( (MAX_N+2)* sizeof(float));
+ x->frames_left = (int *) getbytes((MAX_N+2)* sizeof(int));
+
+ // TRIPLETS OF bin# damp_factor threshold
+ x->list_data = (t_atom *) getbytes((MAX_N2 + 1) * 3 * sizeof(t_atom));
+
+ x->move_threshold = (float *) getbytes((MAX_N2+1)* sizeof(float));
+ x->damping_factor = (float *) getbytes((MAX_N2+1)* sizeof(float));
+
+
+ }
+ if(initialized == 0 || initialized == 1){
+ for(i = 0; i < x->N2+1; i++) {
+ x->move_threshold[i] = x->init_thresh;
+ x->damping_factor[i] = x->init_damping;
+ }
+ }
+
+ memset((char *)x->input,0,x->Nw * sizeof(float));
+ memset((char *)x->output,0,x->Nw * sizeof(float));
+ memset((char *)x->buffer,0,x->N * sizeof(float));
+ memset((char *)x->c_lastphase_in,0,(x->N2+1) * sizeof(float));
+ memset((char *)x->c_lastphase_out,0,(x->N2+1) * sizeof(float));
+
+
+ x->tadv = (float) x->D / (float) x->R;
+ x->max_hold_frames = x->max_hold_time / x->tadv;
+ init_rdft(x->N, x->bitshuffle, x->trigland);
+ makehanning(x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D, 0);
+}
+
+void bthresher_rdamper(t_bthresher *x, t_floatarg min, t_floatarg max)
+{
+ int i;
+
+ for( i = 0; i < x->N2; i++ ) {
+ x->damping_factor[i] = bthresher_boundrand(min, max);
+ }
+}
+
+void bthresher_rthreshold( t_bthresher *x, t_floatarg min, t_floatarg max )
+{
+ int i;
+ for( i = 0; i < x->N2; i++ ) {
+ x->move_threshold[i] = bthresher_boundrand(min, max);
+ }
+}
+
+
+void bthresher_bin(t_bthresher *x, t_floatarg bin_num, t_floatarg damper, t_floatarg threshold)
+{
+int bn = (int) bin_num;
+ if( bn >= 0 && bn < x->N2 ){
+// post("setting %d to %f %f",bn,threshold,damper);
+ x->move_threshold[bn] = threshold;
+ x->damping_factor[bn] = damper;
+ } else {
+ post("bthresher~: %d is out of range", bn);
+ }
+}
+
+
+t_int *bthresher_perform(t_int *w)
+{
+
+ float sample, outsamp ;
+ int i, j, on;
+ t_bthresher *x = (t_bthresher *) (w[1]);
+ float *in = (t_float *)(w[2]);
+ float *inthresh = (t_float *)(w[3]);
+ float *damping = (t_float *)(w[4]);
+ float *out = (t_float *)(w[5]);
+ t_int n = w[6];
+
+
+ int *bitshuffle = x->bitshuffle;
+ float *trigland = x->trigland;
+ float mult = x->mult;
+
+ int in_count = x->in_count;
+ int R = x->R;
+ int N = x->N;
+ int N2 = x->N2;
+ int D = x->D;
+ int Nw = x->Nw;
+ float *Wanal = x->Wanal;
+ float *Wsyn = x->Wsyn;
+ float *damping_factor = x->damping_factor;
+ float *move_threshold = x->move_threshold;
+ float *input = x->input;
+ float *output = x->output;
+ float *buffer = x->buffer;
+ float *channel = x->channel;
+ float *composite_frame = x->composite_frame;
+ int max_hold_frames = x->max_hold_frames;
+ int *frames_left = x->frames_left;
+ float thresh_scalar = x->thresh_scalar;
+ float damp_scalar = x->damp_scalar;
+ short inf_hold = x->inf_hold;
+
+ if( x->mute ) {
+ for( j = 0; j < D; j++) {
+ *out++ = 0.0 ;
+ }
+ } else if ( x->bypass ) {
+ for( j = 0; j < D; j++) {
+ *out++ = *in++ * 0.5;
+ }
+ } else {
+#if MSP
+ if( x->thresh_connected ) {
+ thresh_scalar = *inthresh++;
+ }
+ if( x->damping_connected ) {
+ damp_scalar = *damping++;
+ }
+#endif
+
+#if PD
+ thresh_scalar = *inthresh++;
+ damp_scalar = *damping++;
+#endif
+
+ in_count += D;
+
+
+ for ( j = 0 ; j < Nw - D ; j++ )
+ input[j] = input[j+D];
+
+ for ( j = Nw-D; j < Nw; j++ ) {
+ input[j] = *in++;
+ }
+
+ fold( input, Wanal, Nw, buffer, N, in_count );
+ rdft( N, 1, buffer, bitshuffle, trigland );
+ convert( buffer, channel, N2, x->c_lastphase_in, x->c_fundamental, x->c_factor_in );
+
+ if( x->first_frame ){
+ for ( i = 0; i < N+2; i++ ){
+ composite_frame[i] = channel[i];
+ x->frames_left[i] = max_hold_frames;
+ }
+ x->first_frame = 0;
+ } else {
+ if( thresh_scalar < .999 || thresh_scalar > 1.001 || damp_scalar < .999 || damp_scalar > 1.001 ) {
+ for(i = 0, j = 0; i < N+2; i += 2, j++ ){
+ if( fabs( composite_frame[i] - channel[i] ) > move_threshold[j] * thresh_scalar|| frames_left[j] <= 0 ){
+ composite_frame[i] = channel[i];
+ composite_frame[i+1] = channel[i+1];
+ frames_left[j] = max_hold_frames;
+ } else {
+ if(!inf_hold){
+ --(frames_left[j]);
+ }
+ composite_frame[i] *= damping_factor[j] * damp_scalar;
+ }
+ }
+
+ } else {
+ for( i = 0, j = 0; i < N+2; i += 2, j++ ){
+ if( fabs( composite_frame[i] - channel[i] ) > move_threshold[j] || frames_left[j] <= 0 ){
+ composite_frame[i] = channel[i];
+ composite_frame[i+1] = channel[i+1];
+ frames_left[j] = max_hold_frames;
+ } else {
+ if(!inf_hold){
+ --(frames_left[j]);
+ }
+ composite_frame[i] *= damping_factor[j];
+ }
+ }
+ }
+ }
+
+ unconvert(x->composite_frame, buffer, N2, x->c_lastphase_out, x->c_fundamental, x->c_factor_out);
+ rdft(N, -1, buffer, bitshuffle, trigland);
+
+ overlapadd(buffer, N, Wsyn, output, Nw, in_count);
+
+ for ( j = 0; j < D; j++ )
+ *out++ = output[j] * mult;
+
+ for ( j = 0; j < Nw - D; j++ )
+ output[j] = output[j+D];
+
+ for ( j = Nw - D; j < Nw; j++ )
+ output[j] = 0.;
+ }
+ x->in_count = in_count % Nw;
+ x->thresh_scalar = thresh_scalar;
+ x->damp_scalar = damp_scalar;
+
+ return (w+7);
+}
+
+#if MSP
+void bthresher_float(t_bthresher *x, double f) // Look at floats at inlets
+{
+ int inlet = x->x_obj.z_in;
+ int i;
+ if (inlet == 1)
+ {
+ x->thresh_scalar = f;
+ } else if (inlet == 2) {
+ x->damp_scalar = f;
+ }
+}
+#endif
+
+void bthresher_dsp(t_bthresher *x, t_signal **sp, short *count)
+{
+#if MSP
+ x->thresh_connected = count[1];
+ x->damping_connected = count[2];
+#endif
+ if(sp[0]->s_n != x->D || x->R != sp[0]->s_sr){
+ x->D = sp[0]->s_n;
+ x->R = sp[0]->s_sr;
+ bthresher_init(x,1);
+ }
+ dsp_add(bthresher_perform, 6, x, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[3]->s_vec,
+ sp[0]->s_n);
+}
+
+float bthresher_boundrand( float min, float max) {
+ float frand;
+ frand = (float) (rand() % 32768)/ 32768.0;
+ return (min + frand * (max-min) );
+}
+
generated by cgit v1.2.1 (git 2.18.0) at 2024-05-04 19:57:52 +0000