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authorHans-Christoph Steiner <eighthave@users.sourceforge.net>2012-10-08 01:06:18 +0000
committerHans-Christoph Steiner <eighthave@users.sourceforge.net>2012-10-08 01:06:18 +0000
commit680fe2637842731e3d28cbbc47349a32faee374b (patch)
treee26fc560e6541b3c4c0e7d3b8eea468c84b833ce /externals/extra/0.43.3/sigmund~/sigmund~.c
parent5aeafcb5b77b06ef6e14d140db81bd79b2f173c4 (diff)
deleting botched copies/tags
svn path=/trunk/; revision=16360
Diffstat (limited to 'externals/extra/0.43.3/sigmund~/sigmund~.c')
-rw-r--r--externals/extra/0.43.3/sigmund~/sigmund~.c1655
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diff --git a/externals/extra/0.43.3/sigmund~/sigmund~.c b/externals/extra/0.43.3/sigmund~/sigmund~.c
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-/* Copyright (c) 2005 Miller Puckette. BSD licensed. No warranties. */
-
-/*
- fix parameter settings
- not to report pitch if evidence too scanty?
- note-on detection triggered by falling envelope (a posteriori)
- reentrancy bug setting loud flag (other parameters too?)
- tweaked freqs still not stable enough
- implement block ("-b") mode
-*/
-
-#ifdef PD
-#include "m_pd.h"
-#endif
-#ifdef MSP
-#include "ext.h"
-#include "z_dsp.h"
-#include "ext_support.h"
-#include "ext_proto.h"
-#include "ext_obex.h"
-typedef double t_floatarg;
-#define t_resizebytes(a, b, c) t_resizebytes((char *)(a), (b), (c))
-#endif
-
-/* From here to the next "#ifdef PD" or "#ifdef Max" should be extractable
-and usable in other contexts. The one external requirement is a real
-single-precision FFT, invoked as in the Mayer one: */
-
-#ifdef _MSC_VER /* this is only needed with Microsoft's compiler */
-__declspec(dllimport) extern
-#endif
-void mayer_realfft(int npoints, t_sample *buf);
-
-/* this routine is passed a buffer of npoints values, and returns the
-N/2+1 real parts of the DFT (frequency zero through Nyquist), followed
-by the N/2-1 imaginary points, in order of decreasing frequency. Pd 0.41,
-for example, defines this in the file d_fft_mayer.c or d_fft_fftsg.c. */
-
-#include <math.h>
-#include <stdio.h>
-#include <string.h>
-#ifdef _WIN32
-#include <malloc.h>
-#elif ! defined(_MSC_VER)
-#include <alloca.h>
-#endif
-#include <stdlib.h>
-#ifdef _MSC_VER
-#pragma warning( disable : 4244 )
-#pragma warning( disable : 4305 )
-#endif
-
-typedef struct peak
-{
- t_float p_freq;
- t_float p_amp;
- t_float p_ampreal;
- t_float p_ampimag;
- t_float p_pit;
- t_float p_db;
- t_float p_salience;
- t_float p_tmp;
-} t_peak;
-
-/********************** service routines **************************/
-
-/* these three are dapted from elsewhere in Pd but included here for
-cmolpeteness */
-static int sigmund_ilog2(int n)
-{
- int ret = -1;
- while (n)
- {
- n >>= 1;
- ret++;
- }
- return (ret);
-}
-
-static t_float sigmund_ftom(t_float f)
-{
- return (f > 0 ? 17.3123405046 * log(.12231220585 * f) : -1500);
-}
-
-#define LOGTEN 2.302585092994
-static t_float sigmund_powtodb(t_float f)
-{
- if (f <= 0) return (0);
- else
- {
- t_float val = 100 + 10./LOGTEN * log(f);
- return (val < 0 ? 0 : val);
- }
-}
-
-/* parameters for von Hann window (change these to get Hamming if desired) */
-#define W_ALPHA 0.5
-#define W_BETA 0.5
-#define NEGBINS 4 /* number of bins of negative frequency we'll need */
-
-#define PI 3.141592653589793
-#define LOG2 0.693147180559945
-#define LOG10 2.302585092994046
-
-static t_float sinx(t_float theta, t_float sintheta)
-{
- if (theta > -0.003 && theta < 0.003)
- return (1);
- else return (sintheta/theta);
-}
-
-static t_float window_hann_mag(t_float pidetune, t_float sinpidetune)
-{
- return (W_ALPHA * sinx(pidetune, sinpidetune)
- - 0.5 * W_BETA *
- (sinx(pidetune+PI, sinpidetune) + sinx(pidetune-PI, sinpidetune)));
-}
-
-static t_float window_mag(t_float pidetune, t_float cospidetune)
-{
- return (sinx(pidetune + (PI/2), cospidetune)
- + sinx(pidetune - (PI/2), -cospidetune));
-}
-
-/*********** Routines to analyze a window into sinusoidal peaks *************/
-
-static int sigmund_cmp_freq(const void *p1, const void *p2)
-{
- if ((*(t_peak **)p1)->p_freq > (*(t_peak **)p2)->p_freq)
- return (1);
- else if ((*(t_peak **)p1)->p_freq < (*(t_peak **)p2)->p_freq)
- return (-1);
- else return (0);
-}
-
-static void sigmund_tweak(int npts, t_float *ftreal, t_float *ftimag,
- int npeak, t_peak *peaks, t_float fperbin, int loud)
-{
- t_peak **peakptrs = (t_peak **)alloca(sizeof (*peakptrs) * (npeak+1));
- t_peak negpeak;
- int peaki, j, k;
- t_float ampreal[3], ampimag[3];
- t_float binperf = 1./fperbin;
- t_float phaseperbin = (npts-0.5)/npts, oneovern = 1./npts;
- if (npeak < 1)
- return;
- for (peaki = 0; peaki < npeak; peaki++)
- peakptrs[peaki+1] = &peaks[peaki];
- qsort(peakptrs+1, npeak, sizeof (*peakptrs), sigmund_cmp_freq);
- peakptrs[0] = &negpeak;
- negpeak.p_ampreal = peakptrs[1]->p_ampreal;
- negpeak.p_ampimag = -peakptrs[1]->p_ampimag;
- negpeak.p_freq = -peakptrs[1]->p_freq;
- for (peaki = 1; peaki <= npeak; peaki++)
- {
- int cbin = peakptrs[peaki]->p_freq*binperf + 0.5;
- int nsub = (peaki == npeak ? 1:2);
- t_float windreal, windimag, windpower, detune, pidetune, sinpidetune,
- cospidetune, ampcorrect, ampout, ampoutreal, ampoutimag, freqout;
- /* post("3 nsub %d amp %f freq %f", nsub,
- peakptrs[peaki]->p_amp, peakptrs[peaki]->p_freq); */
- if (cbin < 0 || cbin > 2*npts - 3)
- continue;
- for (j = 0; j < 3; j++)
- ampreal[j] = ftreal[cbin+2*j-2], ampimag[j] = ftimag[cbin+2*j-2];
- /* post("a %f %f", ampreal[1], ampimag[1]); */
- for (j = 0; j < nsub; j++)
- {
- t_peak *neighbor = peakptrs[(peaki-1) + 2*j];
- t_float neighborreal = npts * neighbor->p_ampreal;
- t_float neighborimag = npts * neighbor->p_ampimag;
- for (k = 0; k < 3; k++)
- {
- t_float freqdiff = (0.5*PI) * ((cbin + 2*k-2)
- -binperf * neighbor->p_freq);
- t_float sx = sinx(freqdiff, sin(freqdiff));
- t_float phasere = cos(freqdiff * phaseperbin);
- t_float phaseim = sin(freqdiff * phaseperbin);
- ampreal[k] -=
- sx * (phasere * neighborreal - phaseim * neighborimag);
- ampimag[k] -=
- sx * (phaseim * neighborreal + phasere * neighborimag);
- }
- /* post("b %f %f", ampreal[1], ampimag[1]); */
- }
-
- windreal = W_ALPHA * ampreal[1] -
- (0.5 * W_BETA) * (ampreal[0] + ampreal[2]);
- windimag = W_ALPHA * ampimag[1] -
- (0.5 * W_BETA) * (ampimag[0] + ampimag[2]);
- windpower = windreal * windreal + windimag * windimag;
- detune = (
- W_BETA*(ampreal[0] - ampreal[2]) *
- (2.0*W_ALPHA * ampreal[1] - W_BETA * (ampreal[0] + ampreal[2]))
- +
- W_BETA*(ampimag[0] - ampimag[2]) *
- (2.0*W_ALPHA * ampimag[1] - W_BETA * (ampimag[0] + ampimag[2]))
- ) / (4.0 * windpower);
- if (detune > 0.5)
- detune = 0.5;
- else if (detune < -0.5)
- detune = -0.5;
- /* if (loud > 0)
- post("tweak: windpower %f, bin %d, detune %f",
- windpower, cbin, detune); */
- pidetune = PI * detune;
- sinpidetune = sin(pidetune);
- cospidetune = cos(pidetune);
-
- ampcorrect = 1.0 / window_hann_mag(pidetune, sinpidetune);
-
- ampout = oneovern * ampcorrect *sqrt(windpower);
- ampoutreal = oneovern * ampcorrect *
- (windreal * cospidetune - windimag * sinpidetune);
- ampoutimag = oneovern * ampcorrect *
- (windreal * sinpidetune + windimag * cospidetune);
- freqout = (cbin + 2*detune) * fperbin;
- /* if (loud > 1)
- post("amp %f, freq %f", ampout, freqout); */
-
- peakptrs[peaki]->p_freq = freqout;
- peakptrs[peaki]->p_amp = ampout;
- peakptrs[peaki]->p_ampreal = ampoutreal;
- peakptrs[peaki]->p_ampimag = ampoutimag;
- }
-}
-
-static void sigmund_remask(int maxbin, int bestindex, t_float powmask,
- t_float maxpower, t_float *maskbuf)
-{
- int bin;
- int bin1 = (bestindex > 52 ? bestindex-50:2);
- int bin2 = (maxbin < bestindex + 50 ? bestindex + 50 : maxbin);
- for (bin = bin1; bin < bin2; bin++)
- {
- t_float bindiff = bin - bestindex;
- t_float mymask;
- mymask = powmask/ (1. + bindiff * bindiff * bindiff * bindiff);
- if (bindiff < 2 && bindiff > -2)
- mymask = 2*maxpower;
- if (mymask > maskbuf[bin])
- maskbuf[bin] = mymask;
- }
-}
-
-#define PEAKMASKFACTOR 1.
-#define PEAKTHRESHFACTOR 0.6
-
-static void sigmund_getrawpeaks(int npts, t_float *insamps,
- int npeak, t_peak *peakv, int *nfound, t_float *power, t_float srate, int loud,
- t_float hifreq)
-{
- t_float oneovern = 1.0/ (t_float)npts;
- t_float fperbin = 0.5 * srate * oneovern, totalpower = 0;
- int npts2 = 2*npts, i, bin;
- int peakcount = 0;
- t_float *fp1, *fp2;
- t_float *rawreal, *rawimag, *maskbuf, *powbuf;
- t_float *bigbuf = alloca(sizeof (t_float ) * (2*NEGBINS + 6*npts));
- int maxbin = hifreq/fperbin;
- if (maxbin > npts - NEGBINS)
- maxbin = npts - NEGBINS;
- /* if (loud) post("tweak %d", tweak); */
- maskbuf = bigbuf + npts2;
- powbuf = maskbuf + npts;
- rawreal = powbuf + npts+NEGBINS;
- rawimag = rawreal+npts+NEGBINS;
- for (i = 0; i < npts; i++)
- maskbuf[i] = 0;
-
- for (i = 0; i < npts; i++)
- bigbuf[i] = insamps[i];
- for (i = npts; i < 2*npts; i++)
- bigbuf[i] = 0;
- mayer_realfft(npts2, bigbuf);
- for (i = 0; i < npts; i++)
- rawreal[i] = bigbuf[i];
- for (i = 1; i < npts-1; i++)
- rawimag[i] = bigbuf[npts2-i];
- rawreal[-1] = rawreal[1];
- rawreal[-2] = rawreal[2];
- rawreal[-3] = rawreal[3];
- rawreal[-4] = rawreal[4];
- rawimag[0] = rawimag[npts-1] = 0;
- rawimag[-1] = -rawimag[1];
- rawimag[-2] = -rawimag[2];
- rawimag[-3] = -rawimag[3];
- rawimag[-4] = -rawimag[4];
-#if 1
- for (i = 0, fp1 = rawreal, fp2 = rawimag; i < maxbin; i++, fp1++, fp2++)
- {
- t_float x1 = fp1[1] - fp1[-1], x2 = fp2[1] - fp2[-1], p = powbuf[i] = x1*x1+x2*x2;
- if (i >= 2)
- totalpower += p;
- }
- powbuf[maxbin] = powbuf[maxbin+1] = 0;
- *power = 0.5 * totalpower *oneovern * oneovern;
-#endif
- for (peakcount = 0; peakcount < npeak; peakcount++)
- {
- t_float pow1, maxpower = 0, windreal, windimag, windpower,
- detune, pidetune, sinpidetune, cospidetune, ampcorrect, ampout,
- ampoutreal, ampoutimag, freqout, powmask;
- int bestindex = -1;
-
- for (bin = 2, fp1 = rawreal+2, fp2 = rawimag+2;
- bin < maxbin; bin++, fp1++, fp2++)
- {
- pow1 = powbuf[bin];
- if (pow1 > maxpower && pow1 > maskbuf[bin])
- {
- t_float thresh = PEAKTHRESHFACTOR * (powbuf[bin-2]+powbuf[bin+2]);
- if (pow1 > thresh)
- maxpower = pow1, bestindex = bin;
- }
- }
-
- if (totalpower <= 0 || maxpower < 1e-10*totalpower || bestindex < 0)
- break;
- fp1 = rawreal+bestindex;
- fp2 = rawimag+bestindex;
- powmask = maxpower * PEAKMASKFACTOR;
- /* if (loud > 2)
- post("maxpower %f, powmask %f, param1 %f",
- maxpower, powmask, param1); */
- sigmund_remask(maxbin, bestindex, powmask, maxpower, maskbuf);
-
- /* if (loud > 1)
- post("best index %d, total power %f", bestindex, totalpower); */
-
- windreal = fp1[1] - fp1[-1];
- windimag = fp2[1] - fp2[-1];
- windpower = windreal * windreal + windimag * windimag;
- detune = ((fp1[1] * fp1[1] - fp1[-1]*fp1[-1])
- + (fp2[1] * fp2[1] - fp2[-1]*fp2[-1])) / (2 * windpower);
-
- if (detune > 0.5)
- detune = 0.5;
- else if (detune < -0.5)
- detune = -0.5;
- /* if (loud > 1)
- post("windpower %f, index %d, detune %f",
- windpower, bestindex, detune); */
- pidetune = PI * detune;
- sinpidetune = sin(pidetune);
- cospidetune = cos(pidetune);
- ampcorrect = 1.0 / window_mag(pidetune, cospidetune);
-
- ampout = ampcorrect *sqrt(windpower);
- ampoutreal = ampcorrect *
- (windreal * cospidetune - windimag * sinpidetune);
- ampoutimag = ampcorrect *
- (windreal * sinpidetune + windimag * cospidetune);
-
- /* the frequency is the sum of the bin frequency and detuning */
-
- peakv[peakcount].p_freq = (freqout = (bestindex + 2*detune)) * fperbin;
- peakv[peakcount].p_amp = oneovern * ampout;
- peakv[peakcount].p_ampreal = oneovern * ampoutreal;
- peakv[peakcount].p_ampimag = oneovern * ampoutimag;
- }
- sigmund_tweak(npts, rawreal, rawimag, peakcount, peakv, fperbin, loud);
- sigmund_tweak(npts, rawreal, rawimag, peakcount, peakv, fperbin, loud);
- for (i = 0; i < peakcount; i++)
- {
- peakv[i].p_pit = sigmund_ftom(peakv[i].p_freq);
- peakv[i].p_db = sigmund_powtodb(peakv[i].p_amp);
- }
- *nfound = peakcount;
-}
-
-/*************** Routines for finding fundamental pitch *************/
-
-#define PITCHNPEAK 12
-#define HALFTONEINC 0.059
-#define SUBHARMONICS 16
-#define DBPERHALFTONE 0.0
-
-static void sigmund_getpitch(int npeak, t_peak *peakv, t_float *freqp,
- t_float npts, t_float srate, t_float nharmonics, t_float amppower, int loud)
-{
- t_float fperbin = 0.5 * srate / npts;
- int npit = 48 * sigmund_ilog2(npts), i, j, k, nsalient;
- t_float bestbin, bestweight, sumamp, sumweight, sumfreq, freq;
- t_float *weights = (t_float *)alloca(sizeof(t_float) * npit);
- t_peak *bigpeaks[PITCHNPEAK];
- if (npeak < 1)
- {
- freq = 0;
- goto done;
- }
- for (i = 0; i < npit; i++)
- weights[i] = 0;
- for (i = 0; i < npeak; i++)
- {
- peakv[i].p_tmp = 0;
- peakv[i].p_salience = peakv[i].p_db - DBPERHALFTONE * peakv[i].p_pit;
- }
- for (nsalient = 0; nsalient < PITCHNPEAK; nsalient++)
- {
- t_peak *bestpeak = 0;
- t_float bestsalience = -1e20;
- for (j = 0; j < npeak; j++)
- if (peakv[j].p_tmp == 0 && peakv[j].p_salience > bestsalience)
- {
- bestsalience = peakv[j].p_salience;
- bestpeak = &peakv[j];
- }
- if (!bestpeak)
- break;
- bigpeaks[nsalient] = bestpeak;
- bestpeak->p_tmp = 1;
- /* post("peak f=%f a=%f", bestpeak->p_freq, bestpeak->p_amp); */
- }
- sumweight = 0;
- for (i = 0; i < nsalient; i++)
- {
- t_peak *thispeak = bigpeaks[i];
- t_float weightindex = (48./LOG2) *
- log(thispeak->p_freq/(2.*fperbin));
- t_float loudness = pow(thispeak->p_amp, amppower);
- /* post("index %f, uncertainty %f", weightindex, pitchuncertainty); */
- for (j = 0; j < SUBHARMONICS; j++)
- {
- t_float subindex = weightindex -
- (48./LOG2) * log(j + 1.);
- int loindex = subindex - 0.5;
- int hiindex = loindex+2;
- if (hiindex < 0)
- break;
- if (hiindex >= npit)
- continue;
- if (loindex < 0)
- loindex = 0;
- for (k = loindex; k <= hiindex; k++)
- weights[k] += loudness * nharmonics / (nharmonics + j);
- }
- sumweight += loudness;
- }
- bestbin = -1;
- bestweight = -1e20;
- for (i = 0; i < npit; i++)
- if (weights[i] > bestweight)
- bestweight = weights[i], bestbin = i;
- if (bestweight < sumweight * 0.4)
- bestbin = -1;
-
- if (bestbin < 0)
- {
- freq = 0;
- goto done;
- }
- if (bestbin > 0 && bestbin < npit-1)
- {
- int ibest = bestbin;
- bestbin += (weights[ibest+1] - weights[ibest-1]) /
- (weights[ibest+1] + weights[ibest] + weights[ibest-1]);
- }
- freq = 2*fperbin * exp((LOG2/48.)*bestbin);
- for (sumamp = sumweight = sumfreq = 0, i = 0; i < nsalient; i++)
- {
- t_peak *thispeak = bigpeaks[i];
- t_float thisloudness = thispeak->p_amp;
- t_float thisfreq = thispeak->p_freq;
- t_float harmonic = thisfreq/freq;
- t_float intpart = (int)(0.5 + harmonic);
- t_float inharm = harmonic - intpart;
-#if 0
- if (loud)
- post("freq %f intpart %f inharm %f", freq, intpart, inharm);
-#endif
- if (intpart >= 1 && intpart <= 16 &&
- inharm < 0.015 * intpart && inharm > - (0.015 * intpart))
- {
- t_float weight = thisloudness * intpart;
- sumweight += weight;
- sumfreq += weight*thisfreq/intpart;
-#if 0
- if (loud)
- post("weight %f freq %f", weight, thisfreq);
-#endif
- }
- }
- if (sumweight > 0)
- freq = sumfreq / sumweight;
-done:
- if (!(freq >= 0 || freq <= 0))
- {
- /* post("freq nan cancelled"); */
- freq = 0;
- }
- *freqp = freq;
-}
-
-/*************** gather peak lists into sinusoidal tracks *************/
-
-static void sigmund_peaktrack(int ninpeak, t_peak *inpeakv,
- int noutpeak, t_peak *outpeakv, int loud)
-{
- int incnt, outcnt;
- for (outcnt = 0; outcnt < noutpeak; outcnt++)
- outpeakv[outcnt].p_tmp = -1;
-
- /* first pass. Match each "in" peak with the closest previous
- "out" peak, but no two to the same one. */
- for (incnt = 0; incnt < ninpeak; incnt++)
- {
- t_float besterror = 1e20;
- int bestcnt = -1;
- inpeakv[incnt].p_tmp = -1;
- for (outcnt = 0; outcnt < noutpeak; outcnt++)
- {
- t_float thiserror =
- inpeakv[incnt].p_freq - outpeakv[outcnt].p_freq;
- if (thiserror < 0)
- thiserror = -thiserror;
- if (thiserror < besterror)
- {
- besterror = thiserror;
- bestcnt = outcnt;
- }
- }
- if (outpeakv[bestcnt].p_tmp < 0)
- {
- outpeakv[bestcnt] = inpeakv[incnt];
- inpeakv[incnt].p_tmp = 0;
- outpeakv[bestcnt].p_tmp = 0;
- }
- }
- /* second pass. Unmatched "in" peaks assigned to free "out"
- peaks */
- for (incnt = 0; incnt < ninpeak; incnt++)
- if (inpeakv[incnt].p_tmp < 0)
- {
- for (outcnt = 0; outcnt < noutpeak; outcnt++)
- if (outpeakv[outcnt].p_tmp < 0)
- {
- outpeakv[outcnt] = inpeakv[incnt];
- inpeakv[incnt].p_tmp = 0;
- outpeakv[outcnt].p_tmp = 1;
- break;
- }
- }
- for (outcnt = 0; outcnt < noutpeak; outcnt++)
- if (outpeakv[outcnt].p_tmp == -1)
- outpeakv[outcnt].p_amp = 0;
-}
-
-/**************** parse continuous pitch into note starts ***************/
-
-#define NHISTPOINT 100
-
-typedef struct _histpoint
-{
- t_float h_freq;
- t_float h_power;
-} t_histpoint;
-
-typedef struct _notefinder
-{
- t_float n_age;
- t_float n_hifreq;
- t_float n_lofreq;
- int n_peaked;
- t_histpoint n_hist[NHISTPOINT];
- int n_histphase;
-} t_notefinder;
-
-
-static void notefinder_init(t_notefinder *x)
-{
- int i;
- x->n_peaked = x->n_age = 0;
- x->n_hifreq = x->n_lofreq = 0;
- x->n_histphase = 0;
- for (i = 0; i < NHISTPOINT; i++)
- x->n_hist[i].h_freq =x->n_hist[i].h_power = 0;
-}
-
-static void notefinder_doit(t_notefinder *x, t_float freq, t_float power,
- t_float *note, t_float vibrato, int stableperiod, t_float powerthresh,
- t_float growththresh, int loud)
-{
- /* calculate frequency ratio between allowable vibrato extremes
- (equal to twice the vibrato deviation from center) */
- t_float vibmultiple = exp((2*LOG2/12) * vibrato);
- int oldhistphase, i, k;
- if (stableperiod > NHISTPOINT - 1)
- stableperiod = NHISTPOINT - 1;
- else if (stableperiod < 1)
- stableperiod = 1;
- if (++x->n_histphase == NHISTPOINT)
- x->n_histphase = 0;
- x->n_hist[x->n_histphase].h_freq = freq;
- x->n_hist[x->n_histphase].h_power = power;
- x->n_age++;
- *note = 0;
-#if 0
- if (loud)
- {
- post("stable %d, age %d, vibmultiple %f, powerthresh %f, hifreq %f",
- stableperiod, (int)x->n_age ,vibmultiple, powerthresh, x->n_hifreq);
- post("histfreq %f %f %f %f",
- x->n_hist[x->n_histphase].h_freq,
- x->n_hist[(x->n_histphase+NHISTPOINT-1)%NHISTPOINT].h_freq,
- x->n_hist[(x->n_histphase+NHISTPOINT-2)%NHISTPOINT].h_freq,
- x->n_hist[(x->n_histphase+NHISTPOINT-3)%NHISTPOINT].h_freq);
- post("power %f %f %f %f",
- x->n_hist[x->n_histphase].h_power,
- x->n_hist[(x->n_histphase+NHISTPOINT-1)%NHISTPOINT].h_power,
- x->n_hist[(x->n_histphase+NHISTPOINT-2)%NHISTPOINT].h_power,
- x->n_hist[(x->n_histphase+NHISTPOINT-3)%NHISTPOINT].h_power);
- for (i = 0, k = x->n_histphase; i < stableperiod; i++)
- {
- post("pit %5.1f pow %f", sigmund_ftom(x->n_hist[k].h_freq),
- x->n_hist[k].h_power);
- if (--k < 0)
- k = NHISTPOINT - 1;
- }
- }
-#endif
- /* look for shorter notes than "stableperiod" in length.
- The amplitude must rise and then fall while the pitch holds
- steady. */
- if (x->n_hifreq <= 0 && x->n_age > stableperiod)
- {
- t_float maxpow = 0, freqatmaxpow = 0,
- localhifreq = -1e20, locallofreq = 1e20;
- int startphase = x->n_histphase - stableperiod + 1;
- if (startphase < 0)
- startphase += NHISTPOINT;
- for (i = 0, k = startphase; i < stableperiod; i++)
- {
- if (x->n_hist[k].h_freq <= 0)
- break;
- if (x->n_hist[k].h_power > maxpow)
- maxpow = x->n_hist[k].h_power,
- freqatmaxpow = x->n_hist[k].h_freq;
- if (x->n_hist[k].h_freq > localhifreq)
- localhifreq = x->n_hist[k].h_freq;
- if (x->n_hist[k].h_freq < locallofreq)
- locallofreq = x->n_hist[k].h_freq;
- if (localhifreq > locallofreq * vibmultiple)
- break;
- if (maxpow > power * growththresh &&
- maxpow > x->n_hist[startphase].h_power * growththresh &&
- localhifreq < vibmultiple * locallofreq
- && freqatmaxpow > 0 && maxpow > powerthresh)
- {
- x->n_hifreq = x->n_lofreq = *note = freqatmaxpow;
- x->n_age = 0;
- x->n_peaked = 0;
- /* post("got short note"); */
- return;
- }
- if (++k >= NHISTPOINT)
- k = 0;
- }
-
- }
- if (x->n_hifreq > 0)
- {
- /* test if we're within "vibrato" range, and if so update range */
- if (freq * vibmultiple >= x->n_hifreq &&
- x->n_lofreq * vibmultiple >= freq)
- {
- if (freq > x->n_hifreq)
- x->n_hifreq = freq;
- if (freq < x->n_lofreq)
- x->n_lofreq = freq;
- }
- else if (x->n_hifreq > 0 && x->n_age > stableperiod)
- {
- /* if we've been out of range at least 1/2 the
- last "stableperiod+1" analyses, clear the note */
- int nbad = 0;
- for (i = 0, k = x->n_histphase; i < stableperiod + 1; i++)
- {
- if (--k < 0)
- k = NHISTPOINT - 1;
- if (x->n_hist[k].h_freq * vibmultiple <= x->n_hifreq ||
- x->n_lofreq * vibmultiple <= x->n_hist[k].h_freq)
- nbad++;
- }
- if (2 * nbad >= stableperiod + 1)
- {
- x->n_hifreq = x->n_lofreq = 0;
- x->n_age = 0;
- }
- }
- }
-
- oldhistphase = x->n_histphase - stableperiod;
- if (oldhistphase < 0)
- oldhistphase += NHISTPOINT;
-
- /* look for envelope attacks */
-
- if (x->n_hifreq > 0 && x->n_peaked)
- {
- if (freq > 0 && power > powerthresh &&
- power > x->n_hist[oldhistphase].h_power *
- exp((LOG10*0.1)*growththresh))
- {
- /* clear it and fall through for new stable-note test */
- x->n_peaked = 0;
- x->n_hifreq = x->n_lofreq = 0;
- x->n_age = 0;
- }
- }
- else if (!x->n_peaked)
- {
- if (x->n_hist[oldhistphase].h_power > powerthresh &&
- x->n_hist[oldhistphase].h_power > power)
- x->n_peaked = 1;
- }
-
- /* test for a new note using a stability criterion. */
-
- if (freq >= 0 &&
- (x->n_hifreq <= 0 || freq > x->n_hifreq || freq < x->n_lofreq))
- {
- t_float testfhi = freq, testflo = freq,
- maxpow = x->n_hist[x->n_histphase].h_freq;
- for (i = 0, k = x->n_histphase; i < stableperiod-1; i++)
- {
- if (--k < 0)
- k = NHISTPOINT - 1;
- if (x->n_hist[k].h_freq > testfhi)
- testfhi = x->n_hist[k].h_freq;
- if (x->n_hist[k].h_freq < testflo)
- testflo = x->n_hist[k].h_freq;
- if (x->n_hist[k].h_power > maxpow)
- maxpow = x->n_hist[k].h_power;
- }
-#if 0
- if (loud)
- post("freq %.2g testfhi %.2g testflo %.2g maxpow %.2g",
- freq, testfhi, testflo, maxpow);
-#endif
- if (testflo > 0 && testfhi <= vibmultiple * testflo
- && maxpow > powerthresh)
- {
- /* report new note */
- t_float sumf = 0, sumw = 0, thisw;
- for (i = 0, k = x->n_histphase; i < stableperiod; i++)
- {
- thisw = x->n_hist[k].h_power;
- sumw += thisw;
- sumf += thisw*x->n_hist[k].h_freq;
- if (--k < 0)
- k = NHISTPOINT - 1;
- }
- x->n_hifreq = x->n_lofreq = *note = (sumw > 0 ? sumf/sumw : 0);
-#if 0
- /* debugging printout */
- for (i = 0; i < stableperiod; i++)
- {
- int k3 = x->n_histphase - i;
- if (k3 < 0)
- k3 += NHISTPOINT;
- startpost("%5.1f ", sigmund_ftom(x->n_hist[k3].h_freq));
- }
- post("");
-#endif
- x->n_age = 0;
- x->n_peaked = 0;
- return;
- }
- }
- *note = 0;
- return;
-}
-
-/**************** object structure for Pd and Max. *********************/
-
-/* From here onward, the code is specific to eithr Pd, Max, or both. If
-neither "PD 'nor "MSP" is defined, none of this is compiled, so that the
-whole file can be included in other, non-PD and non-Max projects. */
-
-#if (defined(PD) || defined (MSP))
-
-#define NHIST 100
-
-#define MODE_STREAM 1
-#define MODE_BLOCK 2 /* unimplemented */
-#define MODE_TABLE 3
-
-#define NPOINTS_DEF 1024
-#define NPOINTS_MIN 128
-
-#define HOP_DEF 512
-#define NPEAK_DEF 20
-
-#define VIBRATO_DEF 1
-#define STABLETIME_DEF 50
-#define MINPOWER_DEF 50
-#define GROWTH_DEF 7
-
-#define OUT_PITCH 0
-#define OUT_ENV 1
-#define OUT_NOTE 2
-#define OUT_PEAKS 3
-#define OUT_TRACKS 4
-#define OUT_SMSPITCH 5
-#define OUT_SMSNONPITCH 6
-
-typedef struct _varout
-{
-#ifdef PD
- t_outlet *v_outlet;
-#endif /* PD */
-#ifdef MSP
- void *v_outlet;
-#endif /* MSP */
- int v_what;
-} t_varout;
-
-typedef struct _sigmund
-{
-#ifdef PD
- t_object x_obj;
- t_clock *x_clock;
- t_float x_f; /* for main signal inlet */
-#endif /* PD */
-#ifdef MSP
- t_pxobject x_obj;
- void *obex;
- void *x_clock;
- t_sample *x_inbuf2; /* extra input buffer to eat clock/DSP jitter */
-#endif /* MSP */
- t_varout *x_varoutv;
- int x_nvarout;
- t_float x_sr; /* sample rate */
- int x_mode; /* MODE_STREAM, etc. */
- int x_npts; /* number of points in analysis window */
- int x_npeak; /* number of peaks to find */
- int x_loud; /* debug level */
- t_sample *x_inbuf; /* input buffer */
- int x_infill; /* number of points filled */
- int x_countdown; /* countdown to start filling buffer */
- int x_hop; /* samples between analyses */
- t_float x_maxfreq; /* highest-frequency peak to report */
- t_float x_vibrato; /* vibrato depth in half tones */
- t_float x_stabletime; /* period of stability needed for note */
- t_float x_growth; /* growth to set off a new note */
- t_float x_minpower; /* minimum power, in DB, for a note */
- t_float x_param1; /* three parameters for temporary use */
- t_float x_param2;
- t_float x_param3;
- t_notefinder x_notefinder; /* note parsing state */
- t_peak *x_trackv; /* peak tracking state */
- int x_ntrack; /* number of peaks tracked */
- unsigned int x_dopitch:1; /* which things to calculate */
- unsigned int x_donote:1;
- unsigned int x_dotracks:1;
-} t_sigmund;
-
-static void sigmund_preinit(t_sigmund *x)
-{
- x->x_npts = NPOINTS_DEF;
- x->x_param1 = 6;
- x->x_param2 = 0.5;
- x->x_param3 = 0;
- x->x_hop = HOP_DEF;
- x->x_mode = MODE_STREAM;
- x->x_npeak = NPEAK_DEF;
- x->x_vibrato = VIBRATO_DEF;
- x->x_stabletime = STABLETIME_DEF;
- x->x_growth = GROWTH_DEF;
- x->x_minpower = MINPOWER_DEF;
- x->x_maxfreq = 1000000;
- x->x_loud = 0;
- x->x_sr = 1;
- x->x_nvarout = 0;
- x->x_varoutv = (t_varout *)getbytes(0);
- x->x_trackv = 0;
- x->x_ntrack = 0;
- x->x_dopitch = x->x_donote = x->x_dotracks = 0;
- x->x_inbuf = 0;
-#ifdef MSP
- x->x_inbuf2 = 0;
-#endif
-}
-
-static void sigmund_npts(t_sigmund *x, t_floatarg f)
-{
- int nwas = x->x_npts, npts = f;
- /* check parameter ranges */
- if (npts < NPOINTS_MIN)
- post("sigmund~: minimum points %d", NPOINTS_MIN),
- npts = NPOINTS_MIN;
- if (npts != (1 << sigmund_ilog2(npts)))
- post("sigmund~: adjusting analysis size to %d points",
- (npts = (1 << sigmund_ilog2(npts))));
- if (npts != nwas)
- x->x_countdown = x->x_infill = 0;
- if (x->x_mode == MODE_STREAM)
- {
- if (x->x_inbuf)
- {
- x->x_inbuf = (t_sample *)t_resizebytes(x->x_inbuf,
- sizeof(*x->x_inbuf) * nwas, sizeof(*x->x_inbuf) * npts);
-#ifdef MSP
- x->x_inbuf2 = (t_sample *)t_resizebytes(x->x_inbuf2,
- sizeof(*x->x_inbuf2) * nwas, sizeof(*x->x_inbuf2) * npts);
-#endif
- }
- else
- {
- x->x_inbuf = (t_sample *)getbytes(sizeof(*x->x_inbuf) * npts);
- memset((char *)(x->x_inbuf), 0, sizeof(*x->x_inbuf) * npts);
-#ifdef MSP
- x->x_inbuf2 = (t_sample *)getbytes(sizeof(*x->x_inbuf2) * npts);
- memset((char *)(x->x_inbuf2), 0, sizeof(*x->x_inbuf2) * npts);
-#endif
- }
- }
- else x->x_inbuf = 0;
- x->x_npts = npts;
-}
-
-static void sigmund_hop(t_sigmund *x, t_floatarg f)
-{
- x->x_hop = f;
- /* check parameter ranges */
- if (x->x_hop != (1 << sigmund_ilog2(x->x_hop)))
- post("sigmund~: adjusting analysis size to %d points",
- (x->x_hop = (1 << sigmund_ilog2(x->x_hop))));
-}
-
-static void sigmund_npeak(t_sigmund *x, t_floatarg f)
-{
- if (f < 1)
- f = 1;
- x->x_npeak = f;
-}
-
-static void sigmund_maxfreq(t_sigmund *x, t_floatarg f)
-{
- x->x_maxfreq = f;
-}
-
-static void sigmund_vibrato(t_sigmund *x, t_floatarg f)
-{
- if (f < 0)
- f = 0;
- x->x_vibrato = f;
-}
-
-static void sigmund_stabletime(t_sigmund *x, t_floatarg f)
-{
- if (f < 0)
- f = 0;
- x->x_stabletime = f;
-}
-
-static void sigmund_growth(t_sigmund *x, t_floatarg f)
-{
- if (f < 0)
- f = 0;
- x->x_growth = f;
-}
-
-static void sigmund_minpower(t_sigmund *x, t_floatarg f)
-{
- if (f < 0)
- f = 0;
- x->x_minpower = f;
-}
-
-static void sigmund_doit(t_sigmund *x, int npts, t_float *arraypoints,
- int loud, t_float srate)
-{
- t_peak *peakv = (t_peak *)alloca(sizeof(t_peak) * x->x_npeak);
- int nfound, i, cnt;
- t_float freq = 0, power, note = 0;
- sigmund_getrawpeaks(npts, arraypoints, x->x_npeak, peakv,
- &nfound, &power, srate, loud, x->x_maxfreq);
- if (x->x_dopitch)
- sigmund_getpitch(nfound, peakv, &freq, npts, srate,
- x->x_param1, x->x_param2, loud);
- if (x->x_donote)
- notefinder_doit(&x->x_notefinder, freq, power, &note, x->x_vibrato,
- 1 + x->x_stabletime * 0.001 * x->x_sr / (t_float)x->x_hop,
- exp(LOG10*0.1*(x->x_minpower - 100)), x->x_growth, loud);
- if (x->x_dotracks)
- sigmund_peaktrack(nfound, peakv, x->x_ntrack, x->x_trackv, loud);
-
- for (cnt = x->x_nvarout; cnt--;)
- {
- t_varout *v = &x->x_varoutv[cnt];
- switch (v->v_what)
- {
- case OUT_PITCH:
- outlet_float(v->v_outlet, sigmund_ftom(freq));
- break;
- case OUT_ENV:
- outlet_float(v->v_outlet, sigmund_powtodb(power));
- break;
- case OUT_NOTE:
- if (note > 0)
- outlet_float(v->v_outlet, sigmund_ftom(note));
- break;
- case OUT_PEAKS:
- for (i = 0; i < nfound; i++)
- {
- t_atom at[5];
- SETFLOAT(at, (t_float)i);
- SETFLOAT(at+1, peakv[i].p_freq);
- SETFLOAT(at+2, 2*peakv[i].p_amp);
- SETFLOAT(at+3, 2*peakv[i].p_ampreal);
- SETFLOAT(at+4, 2*peakv[i].p_ampimag);
- outlet_list(v->v_outlet, 0, 5, at);
- }
- break;
- case OUT_TRACKS:
- for (i = 0; i < x->x_ntrack; i++)
- {
- t_atom at[4];
- SETFLOAT(at, (t_float)i);
- SETFLOAT(at+1, x->x_trackv[i].p_freq);
- SETFLOAT(at+2, 2*x->x_trackv[i].p_amp);
- SETFLOAT(at+3, x->x_trackv[i].p_tmp);
- outlet_list(v->v_outlet, 0, 4, at);
- }
- break;
- }
- }
-}
-
-static t_int *sigmund_perform(t_int *w);
-static void sigmund_dsp(t_sigmund *x, t_signal **sp)
-{
- if (x->x_mode == MODE_STREAM)
- {
- if (x->x_hop % sp[0]->s_n)
- post("sigmund: adjusting hop size to %d",
- (x->x_hop = sp[0]->s_n * (x->x_hop / sp[0]->s_n)));
- x->x_sr = sp[0]->s_sr;
- dsp_add(sigmund_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
- }
-}
-
-static void sigmund_print(t_sigmund *x)
-{
- post("sigmund~ settings:");
- post("npts %d", (int)x->x_npts);
- post("hop %d", (int)x->x_hop);
- post("npeak %d", (int)x->x_npeak);
- post("maxfreq %g", x->x_maxfreq);
- post("vibrato %g", x->x_vibrato);
- post("stabletime %g", x->x_stabletime);
- post("growth %g", x->x_growth);
- post("minpower %g", x->x_minpower);
- x->x_loud = 1;
-}
-
-static void sigmund_free(t_sigmund *x)
-{
- if (x->x_inbuf)
- {
- freebytes(x->x_inbuf, x->x_npts * sizeof(*x->x_inbuf));
-#ifdef MSP
- freebytes(x->x_inbuf2, x->x_npts * sizeof(*x->x_inbuf2));
-#endif
- }
- if (x->x_trackv)
- freebytes(x->x_trackv, x->x_ntrack * sizeof(*x->x_trackv));
- clock_free(x->x_clock);
-}
-
-#endif /* PD or MSP */
-/*************************** Glue for Pd ************************/
-#ifdef PD
-
-static t_class *sigmund_class;
-
-static void sigmund_tick(t_sigmund *x);
-static void sigmund_clear(t_sigmund *x);
-static void sigmund_npts(t_sigmund *x, t_floatarg f);
-static void sigmund_hop(t_sigmund *x, t_floatarg f);
-static void sigmund_npeak(t_sigmund *x, t_floatarg f);
-static void sigmund_maxfreq(t_sigmund *x, t_floatarg f);
-static void sigmund_vibrato(t_sigmund *x, t_floatarg f);
-static void sigmund_stabletime(t_sigmund *x, t_floatarg f);
-static void sigmund_growth(t_sigmund *x, t_floatarg f);
-static void sigmund_minpower(t_sigmund *x, t_floatarg f);
-
-static void sigmund_tick(t_sigmund *x)
-{
- if (x->x_infill == x->x_npts)
- {
- sigmund_doit(x, x->x_npts, x->x_inbuf, x->x_loud, x->x_sr);
- if (x->x_hop >= x->x_npts)
- {
- x->x_infill = 0;
- x->x_countdown = x->x_hop - x->x_npts;
- }
- else
- {
- memmove(x->x_inbuf, x->x_inbuf + x->x_hop,
- (x->x_infill = x->x_npts - x->x_hop) * sizeof(*x->x_inbuf));
- x->x_countdown = 0;
- }
- if (x->x_loud)
- x->x_loud--;
- }
-}
-
-static t_int *sigmund_perform(t_int *w)
-{
- t_sigmund *x = (t_sigmund *)(w[1]);
- t_sample *in = (t_sample *)(w[2]);
- int n = (int)(w[3]);
-
- if (x->x_hop % n)
- return (w+4);
- if (x->x_countdown > 0)
- x->x_countdown -= n;
- else if (x->x_infill != x->x_npts)
- {
- int j;
- t_float *fp = x->x_inbuf + x->x_infill;
- for (j = 0; j < n; j++)
- *fp++ = *in++;
- x->x_infill += n;
- if (x->x_infill == x->x_npts)
- clock_delay(x->x_clock, 0);
- }
- return (w+4);
-}
-
-static void *sigmund_new(t_symbol *s, int argc, t_atom *argv)
-{
- t_sigmund *x = (t_sigmund *)pd_new(sigmund_class);
- sigmund_preinit(x);
-
- while (argc > 0)
- {
- t_symbol *firstarg = atom_getsymbolarg(0, argc, argv);
- if (!strcmp(firstarg->s_name, "-t"))
- {
- x->x_mode = MODE_TABLE;
- argc--, argv++;
- }
- else if (!strcmp(firstarg->s_name, "-s"))
- {
- x->x_mode = MODE_STREAM;
- argc--, argv++;
- }
-#if 0
- else if (!strcmp(firstarg->s_name, "-b"))
- {
- x->x_mode = MODE_BLOCK;
- argc--, argv++;
- }
-#endif
- else if (!strcmp(firstarg->s_name, "-npts") && argc > 1)
- {
- x->x_npts = atom_getfloatarg(1, argc, argv);
- argc -= 2; argv += 2;
- }
- else if (!strcmp(firstarg->s_name, "-hop") && argc > 1)
- {
- sigmund_hop(x, atom_getfloatarg(1, argc, argv));
- argc -= 2; argv += 2;
- }
- else if (!strcmp(firstarg->s_name, "-npeak") && argc > 1)
- {
- sigmund_npeak(x, atom_getfloatarg(1, argc, argv));
- argc -= 2; argv += 2;
- }
- else if (!strcmp(firstarg->s_name, "-maxfreq") && argc > 1)
- {
- sigmund_maxfreq(x, atom_getfloatarg(1, argc, argv));
- argc -= 2; argv += 2;
- }
- else if (!strcmp(firstarg->s_name, "-vibrato") && argc > 1)
- {
- sigmund_vibrato(x, atom_getfloatarg(1, argc, argv));
- argc -= 2; argv += 2;
- }
- else if (!strcmp(firstarg->s_name, "-stabletime") && argc > 1)
- {
- sigmund_stabletime(x, atom_getfloatarg(1, argc, argv));
- argc -= 2; argv += 2;
- }
- else if (!strcmp(firstarg->s_name, "-growth") && argc > 1)
- {
- sigmund_growth(x, atom_getfloatarg(1, argc, argv));
- argc -= 2; argv += 2;
- }
- else if (!strcmp(firstarg->s_name, "-minpower") && argc > 1)
- {
- sigmund_minpower(x, atom_getfloatarg(1, argc, argv));
- argc -= 2; argv += 2;
- }
- else if (!strcmp(firstarg->s_name, "pitch"))
- {
- int n2 = x->x_nvarout+1;
- x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv,
- x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout));
- x->x_varoutv[x->x_nvarout].v_outlet =
- outlet_new(&x->x_obj, &s_float);
- x->x_varoutv[x->x_nvarout].v_what = OUT_PITCH;
- x->x_nvarout = n2;
- x->x_dopitch = 1;
- argc--, argv++;
- }
- else if (!strcmp(firstarg->s_name, "env"))
- {
- int n2 = x->x_nvarout+1;
- x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv,
- x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout));
- x->x_varoutv[x->x_nvarout].v_outlet =
- outlet_new(&x->x_obj, &s_float);
- x->x_varoutv[x->x_nvarout].v_what = OUT_ENV;
- x->x_nvarout = n2;
- argc--, argv++;
- }
- else if (!strcmp(firstarg->s_name, "note")
- || !strcmp(firstarg->s_name, "notes"))
- {
- int n2 = x->x_nvarout+1;
- x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv,
- x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout));
- x->x_varoutv[x->x_nvarout].v_outlet =
- outlet_new(&x->x_obj, &s_float);
- x->x_varoutv[x->x_nvarout].v_what = OUT_NOTE;
- x->x_nvarout = n2;
- x->x_dopitch = x->x_donote = 1;
- argc--, argv++;
- }
- else if (!strcmp(firstarg->s_name, "peaks"))
- {
- int n2 = x->x_nvarout+1;
- x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv,
- x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout));
- x->x_varoutv[x->x_nvarout].v_outlet =
- outlet_new(&x->x_obj, &s_list);
- x->x_varoutv[x->x_nvarout].v_what = OUT_PEAKS;
- x->x_nvarout = n2;
- argc--, argv++;
- }
- else if (!strcmp(firstarg->s_name, "tracks"))
- {
- int n2 = x->x_nvarout+1;
- x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv,
- x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout));
- x->x_varoutv[x->x_nvarout].v_outlet =
- outlet_new(&x->x_obj, &s_list);
- x->x_varoutv[x->x_nvarout].v_what = OUT_TRACKS;
- x->x_nvarout = n2;
- x->x_dotracks = 1;
- argc--, argv++;
- }
- else
- {
- pd_error(x, "sigmund: %s: unknown flag or argument missing",
- firstarg->s_name);
- argc--, argv++;
- }
- }
- if (!x->x_nvarout)
- {
- x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv,
- 0, 2*sizeof(t_varout));
- x->x_varoutv[0].v_outlet = outlet_new(&x->x_obj, &s_float);
- x->x_varoutv[0].v_what = OUT_PITCH;
- x->x_varoutv[1].v_outlet = outlet_new(&x->x_obj, &s_float);
- x->x_varoutv[1].v_what = OUT_ENV;
- x->x_nvarout = 2;
- x->x_dopitch = 1;
- }
- if (x->x_dotracks)
- {
- x->x_ntrack = x->x_npeak;
- x->x_trackv = (t_peak *)getbytes(x->x_ntrack * sizeof(*x->x_trackv));
- }
- x->x_clock = clock_new(&x->x_obj.ob_pd, (t_method)sigmund_tick);
-
- x->x_infill = 0;
- x->x_countdown = 0;
- sigmund_npts(x, x->x_npts);
- notefinder_init(&x->x_notefinder);
- sigmund_clear(x);
- return (x);
-}
-
-static void sigmund_list(t_sigmund *x, t_symbol *s, int argc, t_atom *argv)
-{
- t_symbol *syminput = atom_getsymbolarg(0, argc, argv);
- int npts = atom_getintarg(1, argc, argv);
- int onset = atom_getintarg(2, argc, argv);
- t_float srate = atom_getfloatarg(3, argc, argv);
- int loud = atom_getfloatarg(4, argc, argv);
- int arraysize, totstorage, nfound, i;
- t_garray *a;
- t_float *arraypoints, pit;
- t_word *wordarray = 0;
- if (argc < 5)
- {
- post(
- "sigmund: array-name, npts, array-onset, samplerate, loud");
- return;
- }
- if (npts < 64 || npts != (1 << ilog2(npts)))
- {
- error("sigmund: bad npoints");
- return;
- }
- if (onset < 0)
- {
- error("sigmund: negative onset");
- return;
- }
- arraypoints = alloca(sizeof(t_float)*npts);
- if (!(a = (t_garray *)pd_findbyclass(syminput, garray_class)) ||
- !garray_getfloatwords(a, &arraysize, &wordarray) ||
- arraysize < onset + npts)
- {
- error("%s: array missing or too small", syminput->s_name);
- return;
- }
- if (arraysize < npts)
- {
- error("sigmund~: too few points in array");
- return;
- }
- for (i = 0; i < npts; i++)
- arraypoints[i] = wordarray[i+onset].w_float;
- sigmund_doit(x, npts, arraypoints, loud, srate);
-}
-
-static void sigmund_clear(t_sigmund *x)
-{
- if (x->x_trackv)
- memset(x->x_trackv, 0, x->x_ntrack * sizeof(*x->x_trackv));
- x->x_infill = x->x_countdown = 0;
-}
-
- /* these are for testing; their meanings vary... */
-static void sigmund_param1(t_sigmund *x, t_floatarg f)
-{
- x->x_param1 = f;
-}
-
-static void sigmund_param2(t_sigmund *x, t_floatarg f)
-{
- x->x_param2 = f;
-}
-
-static void sigmund_param3(t_sigmund *x, t_floatarg f)
-{
- x->x_param3 = f;
-}
-
-static void sigmund_printnext(t_sigmund *x, t_float f)
-{
- x->x_loud = f;
-}
-
-void sigmund_tilde_setup(void)
-{
- sigmund_class = class_new(gensym("sigmund~"), (t_newmethod)sigmund_new,
- (t_method)sigmund_free, sizeof(t_sigmund), 0, A_GIMME, 0);
- class_addlist(sigmund_class, sigmund_list);
- class_addmethod(sigmund_class, (t_method)sigmund_dsp, gensym("dsp"), 0);
- CLASS_MAINSIGNALIN(sigmund_class, t_sigmund, x_f);
- class_addmethod(sigmund_class, (t_method)sigmund_param1,
- gensym("param1"), A_FLOAT, 0);
- class_addmethod(sigmund_class, (t_method)sigmund_param2,
- gensym("param2"), A_FLOAT, 0);
- class_addmethod(sigmund_class, (t_method)sigmund_param3,
- gensym("param3"), A_FLOAT, 0);
- class_addmethod(sigmund_class, (t_method)sigmund_npts,
- gensym("npts"), A_FLOAT, 0);
- class_addmethod(sigmund_class, (t_method)sigmund_hop,
- gensym("hop"), A_FLOAT, 0);
- class_addmethod(sigmund_class, (t_method)sigmund_maxfreq,
- gensym("maxfreq"), A_FLOAT, 0);
- class_addmethod(sigmund_class, (t_method)sigmund_npeak,
- gensym("npeak"), A_FLOAT, 0);
- class_addmethod(sigmund_class, (t_method)sigmund_vibrato,
- gensym("vibrato"), A_FLOAT, 0);
- class_addmethod(sigmund_class, (t_method)sigmund_stabletime,
- gensym("stabletime"), A_FLOAT, 0);
- class_addmethod(sigmund_class, (t_method)sigmund_growth,
- gensym("growth"), A_FLOAT, 0);
- class_addmethod(sigmund_class, (t_method)sigmund_minpower,
- gensym("minpower"), A_FLOAT, 0);
- class_addmethod(sigmund_class, (t_method)sigmund_print,
- gensym("print"), 0);
- class_addmethod(sigmund_class, (t_method)sigmund_printnext,
- gensym("printnext"), A_FLOAT, 0);
- post("sigmund~ version 0.07");
-}
-
-#endif /* PD */
-
-/************************ Max/MSP glue **********************************/
-
-/* -------------------------- MSP glue ------------------------- */
-#ifdef MSP
-static void *sigmund_class;
-
-/* Max/MSP has laxer sync between DSP and "tick"s - so in the perf routine we
-keep a circular buffer that is rectified into inbuf only when the tick comes. */
-
-static void sigmund_tick(t_sigmund *x)
-{
- int i, j, npts = x->x_npts;
- if (!x->x_inbuf)
- return;
- for (i = x->x_infill, j = 0; i < npts; i++, j++)
- x->x_inbuf[j] = x->x_inbuf2[i];
- for (i = 0; j < npts; i++, j++)
- x->x_inbuf[j] = x->x_inbuf2[i];
- sigmund_doit(x, x->x_npts, x->x_inbuf, x->x_loud, x->x_sr);
- x->x_loud = 0;
-}
-
-static t_int *sigmund_perform(t_int *w)
-{
- t_sigmund *x = (t_sigmund *)(w[1]);
- t_float *in = (t_float *)(w[2]);
- int n = (int)(w[3]), j;
- int infill = x->x_infill;
- t_float *fp = x->x_inbuf2 + infill;
-
- if (x->x_obj.z_disabled) /* return if in muted MSP subpatch -Rd */
- return (w+4);
-
- if (infill < 0 || infill >= x->x_npts)
- infill = 0;
- /* for some reason this sometimes happens: */
- if (!x->x_inbuf2)
- return (w+4);
- for (j = 0; j < n; j++)
- {
- *fp++ = *in++;
- if (++infill == x->x_npts)
- infill = 0, fp = x->x_inbuf2;
- }
- x->x_infill = infill;
- if (x->x_countdown <= 0)
- {
- x->x_countdown = x->x_hop;
- clock_delay(x->x_clock, 0);
- }
- x->x_countdown -= n;
- return (w+4);
-}
-
-static void *sigmund_new(t_symbol *s, long ac, t_atom *av)
-{
- t_sigmund *x;
- t_varout *g;
- int i, j;
- if (!(x = (t_sigmund *)object_alloc(sigmund_class)))
- return (0);
- sigmund_preinit(x);
- attr_args_process(x, ac, av);
- dsp_setup((t_pxobject *)x, 1);
- object_obex_store(x, gensym("dumpout"), outlet_new(x, NULL));
-
- for (i = 0; i < ac; i++)
- if (av[i].a_type == A_SYM)
- {
- char *s = av[i].a_w.w_sym->s_name;
- if (!strcmp(s, "pitch"))
- {
- int n2 = x->x_nvarout+1;
- x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv,
- x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout));
- x->x_varoutv[x->x_nvarout].v_what = OUT_PITCH;
- x->x_nvarout = n2;
- x->x_dopitch = 1;
- }
- else if (!strcmp(s, "env"))
- {
- int n2 = x->x_nvarout+1;
- x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv,
- x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout));
- x->x_varoutv[x->x_nvarout].v_what = OUT_ENV;
- x->x_nvarout = n2;
- }
- else if (!strcmp(s, "note") || !strcmp(s, "notes"))
- {
- int n2 = x->x_nvarout+1;
- x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv,
- x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout));
- x->x_varoutv[x->x_nvarout].v_what = OUT_NOTE;
- x->x_nvarout = n2;
- x->x_dopitch = x->x_donote = 1;
- }
- else if (!strcmp(s, "peaks"))
- {
- int n2 = x->x_nvarout+1;
- x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv,
- x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout));
- x->x_varoutv[x->x_nvarout].v_what = OUT_PEAKS;
- x->x_nvarout = n2;
- }
- else if (!strcmp(s, "tracks"))
- {
- int n2 = x->x_nvarout+1;
- x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv,
- x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout));
- x->x_varoutv[x->x_nvarout].v_what = OUT_TRACKS;
- x->x_nvarout = n2;
- x->x_dotracks = 1;
- }
- else if (s[0] != '@')
- post("sigmund: ignoring unknown argument '%s'" ,s);
- }
- if (!x->x_nvarout)
- {
- x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv,
- 0, 2*sizeof(t_varout));
- x->x_varoutv[0].v_what = OUT_PITCH;
- x->x_varoutv[1].v_what = OUT_ENV;
- x->x_nvarout = 2;
- x->x_dopitch = 1;
- }
- for (j = 0, g = x->x_varoutv + x->x_nvarout-1; j < x->x_nvarout; j++, g--)
- g->v_outlet = ((g->v_what == OUT_PITCH || g->v_what == OUT_ENV ||
- g->v_what == OUT_NOTE) ?
- floatout((t_object *)x) : listout((t_object *)x));
- if (x->x_dotracks)
- {
- x->x_ntrack = x->x_npeak;
- x->x_trackv = (t_peak *)getbytes(x->x_ntrack * sizeof(*x->x_trackv));
- }
- x->x_clock = clock_new(x, (method)sigmund_tick);
- x->x_infill = 0;
- x->x_countdown = 0;
- sigmund_npts(x, x->x_npts);
- notefinder_init(&x->x_notefinder);
- return (x);
-}
-
-/* Attribute setters. */
-void sigmund_npts_set(t_sigmund *x, void *attr, long ac, t_atom *av)
-{
- if (ac && av)
- sigmund_npts(x, atom_getfloat(av));
-}
-
-void sigmund_hop_set(t_sigmund *x, void *attr, long ac, t_atom *av)
-{
- if (ac && av)
- sigmund_hop(x, atom_getfloat(av));
-}
-
-void sigmund_npeak_set(t_sigmund *x, void *attr, long ac, t_atom *av)
-{
- if (ac && av)
- sigmund_npeak(x, atom_getfloat(av));
-}
-
-void sigmund_maxfreq_set(t_sigmund *x, void *attr, long ac, t_atom *av)
-{
- if (ac && av)
- sigmund_maxfreq(x, atom_getfloat(av));
-}
-
-void sigmund_vibrato_set(t_sigmund *x, void *attr, long ac, t_atom *av)
-{
- if (ac && av)
- sigmund_vibrato(x, atom_getfloat(av));
-}
-
-void sigmund_stabletime_set(t_sigmund *x, void *attr, long ac, t_atom *av)
-{
- if (ac && av)
- sigmund_stabletime(x, atom_getfloat(av));
-}
-
-void sigmund_growth_set(t_sigmund *x, void *attr, long ac, t_atom *av)
-{
- if (ac && av)
- sigmund_growth(x, atom_getfloat(av));
-}
-
-void sigmund_minpower_set(t_sigmund *x, void *attr, long ac, t_atom *av)
-{
- if (ac && av)
- sigmund_minpower(x, atom_getfloat(av));
-}
-
-/* end attr setters */
-
-void sigmund_assist(t_sigmund *x, void *b, long m, long a, char *s)
-{
-}
-
-int main()
-{
- t_class *c;
- long attrflags = 0;
- t_symbol *sym_long = gensym("long"), *sym_float32 = gensym("float32");
-
- c = class_new("sigmund~", (method)sigmund_new,
- (method)sigmund_free, sizeof(t_sigmund), (method)0L, A_GIMME, 0);
-
- class_obexoffset_set(c, calcoffset(t_sigmund, obex));
-
- class_addattr(c, attr_offset_new("npts", sym_long, attrflags,
- (method)0L, (method)sigmund_npts_set,
- calcoffset(t_sigmund, x_npts)));
- class_addattr(c ,attr_offset_new("hop", sym_long, attrflags,
- (method)0L, (method)sigmund_hop_set,
- calcoffset(t_sigmund, x_hop)));
- class_addattr(c ,attr_offset_new("maxfreq", sym_float32, attrflags,
- (method)0L, (method)sigmund_maxfreq_set,
- calcoffset(t_sigmund, x_maxfreq)));
- class_addattr(c ,attr_offset_new("npeak", sym_long, attrflags,
- (method)0L, (method)sigmund_npeak_set,
- calcoffset(t_sigmund, x_npeak)));
- class_addattr(c ,attr_offset_new("vibrato", sym_float32, attrflags,
- (method)0L, (method)sigmund_vibrato_set,
- calcoffset(t_sigmund, x_vibrato)));
- class_addattr(c ,attr_offset_new("stabletime", sym_float32, attrflags,
- (method)0L, (method)sigmund_stabletime_set,
- calcoffset(t_sigmund, x_stabletime)));
- class_addattr(c ,attr_offset_new("growth", sym_float32, attrflags,
- (method)0L, (method)sigmund_growth_set,
- calcoffset(t_sigmund, x_growth)));
- class_addattr(c ,attr_offset_new("minpower", sym_float32, attrflags,
- (method)0L, (method)sigmund_minpower_set,
- calcoffset(t_sigmund, x_minpower)));
-
- class_addmethod(c, (method)sigmund_dsp, "dsp", A_CANT, 0);
- class_addmethod(c, (method)sigmund_print, "print", 0);
- class_addmethod(c, (method)sigmund_print, "printnext", A_DEFFLOAT, 0);
- class_addmethod(c, (method)sigmund_assist, "assist", A_CANT, 0);
-
- class_addmethod(c, (method)object_obex_dumpout, "dumpout", A_CANT, 0);
- class_addmethod(c, (method)object_obex_quickref, "quickref", A_CANT, 0);
-
- class_dspinit(c);
-
- class_register(CLASS_BOX, c);
- sigmund_class = c;
-
- post("sigmund~ version 0.07");
- return (0);
-}
-
-
-#endif /* MSP */
-
-