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Diffstat (limited to 'externals/extra/0.43.2/sigmund~/sigmund~.c')
| -rw-r--r-- | externals/extra/0.43.2/sigmund~/sigmund~.c | 1655 |
1 files changed, 0 insertions, 1655 deletions
diff --git a/externals/extra/0.43.2/sigmund~/sigmund~.c b/externals/extra/0.43.2/sigmund~/sigmund~.c deleted file mode 100644 index 5d1d72f6..00000000 --- a/externals/extra/0.43.2/sigmund~/sigmund~.c +++ /dev/null @@ -1,1655 +0,0 @@ -/* 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, ¬e, 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 */ - - |