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|
/* libxtract feature extraction library
*
* Copyright (C) 2006 Jamie Bullock
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include "xtract/libxtract.h"
#include <stdlib.h>
#include <string.h>
#define XTRACT
void *xtract_make_descriptors(){
t_function_descriptor *fd, *d;
t_type *type;
int f , F;
char *name, *p_name, *desc, *p_desc, *author;
int *argc, *year;
t_vector *data_format;
/* *result_format; */
f = F = XTRACT_FEATURES;
fd = malloc(XTRACT_FEATURES * sizeof(t_function_descriptor));
while(f--){
d = &fd[f];
argc = &d->argc;
type = &d->argv.type;
switch(f){
case MEAN:
case VARIANCE:
case STANDARD_DEVIATION:
case AVERAGE_DEVIATION:
case SPECTRAL_MEAN:
case SPECTRAL_VARIANCE:
case SPECTRAL_STANDARD_DEVIATION:
case SPECTRAL_AVERAGE_DEVIATION:
case ROLLOFF:
case SPECTRAL_INHARMONICITY:
case ODD_EVEN_RATIO:
case LOWEST_VALUE:
case F0:
case FAILSAFE_F0:
case TONALITY:
*argc = 1;
*type = FLOAT;
break;
case SKEWNESS:
case KURTOSIS:
case SPECTRAL_SKEWNESS:
case SPECTRAL_KURTOSIS:
case SPECTRUM:
case PEAK_SPECTRUM:
case HARMONIC_SPECTRUM:
case NOISINESS:
case CREST:
*argc = 2;
*type = FLOAT;
break;
case MFCC:
*argc = 1;
*type = MEL_FILTER;
break;
case BARK_COEFFICIENTS:
*argc = BARK_BANDS;
*type = INT;
break;
case SPECTRAL_CENTROID:
case IRREGULARITY_K:
case IRREGULARITY_J:
case TRISTIMULUS_1:
case TRISTIMULUS_2:
case TRISTIMULUS_3:
case SMOOTHNESS:
case FLATNESS:
case SPREAD:
case ZCR:
case LOUDNESS:
case HIGHEST_VALUE:
case SUM:
case RMS_AMPLITUDE:
case POWER:
case SHARPNESS:
case SPECTRAL_SLOPE:
case HPS:
case FLUX:
case ATTACK_TIME:
case DECAY_TIME:
case DELTA_FEATURE:
case AUTOCORRELATION_FFT:
case DCT:
case AUTOCORRELATION:
case AMDF:
case ASDF:
*argc = 0;
break;
default:
*argc = 0;
break;
}
data_format = &d->data.format;
switch(f){
case MEAN:
case VARIANCE:
case STANDARD_DEVIATION:
case AVERAGE_DEVIATION:
case SKEWNESS:
case KURTOSIS:
case LOWEST_VALUE:
case HIGHEST_VALUE:
case SUM:
case ZCR:
*data_format = ARBITRARY_SERIES;
break;
case SPECTRAL_MEAN:
case SPECTRAL_VARIANCE:
case SPECTRAL_STANDARD_DEVIATION:
case SPECTRAL_AVERAGE_DEVIATION:
case SPECTRAL_SKEWNESS:
case SPECTRAL_KURTOSIS:
case SPECTRAL_CENTROID:
case SPECTRAL_SLOPE:
case PEAK_SPECTRUM:
case HARMONIC_SPECTRUM:
*data_format = SPECTRAL;
break;
case ROLLOFF:
case NOISINESS:
case BARK_COEFFICIENTS:
case CREST:
case IRREGULARITY_K:
case IRREGULARITY_J:
case SMOOTHNESS:
case FLATNESS:
case SPREAD:
case RMS_AMPLITUDE:
case POWER:
case SHARPNESS:
case HPS:
*data_format = SPECTRAL_MAGNITUDES;
break;
case SPECTRAL_INHARMONICITY:
*data_format = SPECTRAL_PEAKS;
break;
case ODD_EVEN_RATIO:
*data_format = SPECTRAL_HARMONICS_FREQUENCIES;
break;
case F0:
case FAILSAFE_F0:
case SPECTRUM:
case MFCC:
case AUTOCORRELATION:
case AUTOCORRELATION_FFT:
case DCT:
case AMDF:
case ASDF:
*data_format = AUDIO_SAMPLES;
break;
case TONALITY:
*data_format = NO_DATA;
break;
case TRISTIMULUS_1:
case TRISTIMULUS_2:
case TRISTIMULUS_3:
*data_format = SPECTRAL_HARMONICS_MAGNITUDES;
break;
case LOUDNESS:
*data_format = BARK_COEFFS;
break;
case FLUX:
case ATTACK_TIME:
case DECAY_TIME:
case DELTA_FEATURE:
default:
*data_format = NO_DATA;
break;
}
name = d->algo.name;
p_name = d->algo.p_name;
desc = d->algo.desc;
p_desc = d->algo.p_desc;
author = d->algo.author;
year = &d->algo.year;
*year = 0;
switch(f){
case MEAN:
strcpy(name, "mean");
strcpy(p_name, "Mean");
strcpy(desc, "Extract the mean of an input vector");
strcpy(p_desc, "Extract the mean of a range of values");
strcpy(author, "");
break;
case VARIANCE:
strcpy(name, "variance");
strcpy(p_name, "Variance");
strcpy(desc, "Extract the variance of an input vector");
strcpy(p_desc, "Extract the variance of a range of values");
strcpy(author, "");
break;
case STANDARD_DEVIATION:
strcpy(name, "standard_deviation");
strcpy(p_name, "Standard Deviation");
strcpy(desc,
"Extract the standard deviation of an input vector");
strcpy(p_desc,
"Extract the standard deviation of a range of values");
strcpy(author, "");
break;
case AVERAGE_DEVIATION:
strcpy(name, "average_deviation");
strcpy(p_name, "Average Deviation");
strcpy(desc,
"Extract the average deviation of an input vector");
strcpy(p_desc,
"Extract the average deviation of a range of values");
strcpy(author, "");
break;
case SPECTRAL_MEAN:
strcpy(name, "spectral_mean");
strcpy(p_name, "Spectral Mean");
strcpy(desc, "Extract the mean of an input spectrum");
strcpy(p_desc, "Extract the mean of an audio spectrum");
strcpy(author, "");
break;
case SPECTRAL_VARIANCE:
strcpy(name, "spectral_variance");
strcpy(p_name, "Spectral Variance");
strcpy(desc, "Extract the variance of an input spectrum");
strcpy(p_desc, "Extract the variance of an audio spectrum");
strcpy(author, "");
break;
case SPECTRAL_STANDARD_DEVIATION:
strcpy(name, "spectral_standard_deviation");
strcpy(p_name, "Spectral Standard Deviation");
strcpy(desc,
"Extract the standard deviation of an input spectrum");
strcpy(p_desc,
"Extract the standard deviation of an audio spectrum");
strcpy(author, "");
break;
case SPECTRAL_AVERAGE_DEVIATION:
strcpy(name, "spectral_average_deviation");
strcpy(p_name, "Spectral Average Deviation");
strcpy(desc,
"Extract the average deviation of an input spectrum");
strcpy(p_desc,
"Extract the average deviation of an audio spectrum");
strcpy(author, "");
break;
case ROLLOFF:
strcpy(name, "spectral_rolloff");
strcpy(p_name, "Spectral Rolloff");
strcpy(desc,
"Extract the rolloff point of a spectrum");
strcpy(p_desc,
"Extract the rolloff point of an audio spectrum");
strcpy(author, "Bee Suan Ong");
*year = 2005;
break;
case SPECTRAL_INHARMONICITY:
strcpy(name, "spectral_inharmonicity");
strcpy(p_name, "Inharmonicity");
strcpy(desc, "Extract the inharmonicity of a spectrum");
strcpy(p_desc,
"Extract the inharmonicity of an audio spectrum");
break;
case SPECTRUM:
strcpy(name, "spectrum");
strcpy(p_name, "Spectrum");
strcpy(desc,
"Extract the spectrum of an input vector");
strcpy(p_desc,
"Extract the spectrum of an audio signal");
strcpy(author, "");
break;
case ODD_EVEN_RATIO:
strcpy(name, "odd_even_ratio");
strcpy(p_name, "Odd/Even Harmonic Ratio");
strcpy(desc,
"Extract the odd-to-even harmonic ratio of a spectrum");
strcpy(p_desc,
"Extract the odd-to-even harmonic ratio of an audio spectrum");
strcpy(author, "");
break;
case LOWEST_VALUE:
strcpy(name, "lowest_value");
strcpy(p_name, "Lowest Value");
strcpy(desc, "Extract the lowest value from an input vector");
strcpy(p_desc, "Extract the lowest value from a given range");
strcpy(author, "");
break;
case F0:
strcpy(name, "f0");
strcpy(p_name, "Fundamental Frequency");
strcpy(desc, "Extract the fundamental frequency of a signal");
strcpy(p_desc,
"Extract the fundamental frequency of an audio signal");
strcpy(author, "");
break;
case FAILSAFE_F0:
strcpy(name, "failsafe_f0");
strcpy(p_name, "Fundamental Frequency (failsafe)");
strcpy(desc, "Extract the fundamental frequency of a signal");
strcpy(p_desc,
"Extract the fundamental frequency of an audio signal");
strcpy(author, "");
break;
case TONALITY:
strcpy(name, "tonality");
strcpy(p_name, "Tonality");
strcpy(desc, "Extract the tonality of a spectrum");
strcpy(p_desc, "Extract the tonality an audio spectrum");
strcpy(author, "Tristan Jehan");
*year = 2005;
break;
case SPECTRAL_SKEWNESS:
strcpy(name, "spectral_skewness");
strcpy(p_name, "Spectral Skewness");
strcpy(desc, "Extract the skewness of an input spectrum");
strcpy(p_desc, "Extract the skewness of an audio spectrum");
strcpy(author, "");
break;
case SPECTRAL_KURTOSIS:
strcpy(name, "spectral_kurtosis");
strcpy(p_name, "Spectral Kurtosis");
strcpy(desc, "Extract the kurtosis of an input spectrum");
strcpy(p_desc, "Extract the kurtosis of an audio spectrum");
strcpy(author, "");
break;
case PEAK_SPECTRUM:
strcpy(name, "peak_spectrum");
strcpy(p_name, "Peak Spectrum");
strcpy(desc, "Extract the spectral peaks from of a spectrum");
strcpy(p_desc,
"Extract the spectral peaks from an audio spectrum");
strcpy(author, "");
break;
case HARMONIC_SPECTRUM:
strcpy(p_name, "harmonic_spectrum");
strcpy(p_name, "Harmonic Spectrum");
strcpy(desc, "Extract the harmonics from a spectrum");
strcpy(p_desc, "Extract the harmonics from an audio spectrum");
strcpy(author, "");
break;
case NOISINESS:
strcpy(name, "noisiness");
strcpy(p_name, "Noisiness");
strcpy(desc, "Extract the noisiness of a spectrum");
strcpy(p_desc, "Extract the noisiness of an audio spectrum");
strcpy(author, "Tae Hong Park");
*year = 2000;
break;
case CREST:
strcpy(name, "crest");
strcpy(p_name, "Spectral Crest Measure");
strcpy(desc,
"Extract the spectral crest measure of a spectrum");
strcpy(p_desc,
"Extract the spectral crest measure of a audio spectrum");
strcpy(author, "Peeters");
*year = 2003;
break;
case MFCC:
strcpy(name, "mfcc");
strcpy(p_name, "Mel-Frequency Cepstral Coefficients");
strcpy(desc, "Extract MFCC from a spectrum");
strcpy(p_desc, "Extract MFCC from an audio spectrum");
strcpy(author, "Rabiner");
break;
case BARK_COEFFICIENTS:
strcpy(name, "bark_coefficients");
strcpy(p_name, "Bark Coefficients");
strcpy(desc, "Extract bark coefficients from a spectrum");
strcpy(p_desc,
"Extract bark coefficients from an audio spectrum");
strcpy(author, "");
break;
case SPECTRAL_CENTROID:
strcpy(name, "spectral_centroid");
strcpy(p_name, "Spectral Centroid");
strcpy(desc, "Extract the spectral centroid of a spectrum");
strcpy(p_desc,
"Extract the spectral centroid of an audio spectrum");
strcpy(author, "");
break;
case IRREGULARITY_K:
strcpy(name, "irregularity_k");
strcpy(p_name, "Irregularity I");
strcpy(desc, "Extract the irregularity of a spectrum");
strcpy(p_desc,
"Extract the irregularity of an audio spectrum");
strcpy(author, "Krimphoff");
*year = 1994;
break;
case IRREGULARITY_J:
strcpy(name, "irregularity_j");
strcpy(p_name, "Irregularity II");
strcpy(desc, "Extract the irregularity of a spectrum");
strcpy(p_desc,
"Extract the irregularity of an audio spectrum");
strcpy(author, "Jensen");
*year = 1999;
break;
case TRISTIMULUS_1:
strcpy(name, "tristimulus_1");
strcpy(p_name, "Tristimulus I");
strcpy(desc, "Extract the tristimulus (type I) of a spectrum");
strcpy(p_desc,
"Extract the tristimulus (type I) of an audio spectrum");
strcpy(author, "Pollard and Jansson");
*year = 1982;
break;
case TRISTIMULUS_2:
strcpy(name, "tristimulus_2");
strcpy(p_name, "Tristimulus II");
strcpy(desc, "Extract the tristimulus (type II) of a spectrum");
strcpy(p_desc,
"Extract the tristimulus (type II) of an audio spectrum");
strcpy(author, "Pollard and Jansson");
*year = 1982;
break;
case TRISTIMULUS_3:
strcpy(name, "tristimulus_3");
strcpy(p_name, "Tristimulus III");
strcpy(desc,
"Extract the tristimulus (type III) of a spectrum");
strcpy(p_desc,
"Extract the tristimulus (type III) of an audio spectrum");
strcpy(author, "Pollard and Jansson");
*year = 1982;
break;
case SMOOTHNESS:
strcpy(name, "smoothness");
strcpy(p_name, "Spectral Smoothness");
strcpy(desc, "Extract the spectral smoothness of a spectrum");
strcpy(p_desc,
"Extract the spectral smoothness of an audio spectrum");
strcpy(author, "McAdams");
*year = 1999;
break;
case FLATNESS:
strcpy(name, "flatness");
strcpy(p_name, "Spectral Flatness");
strcpy(desc, "Extract the spectral flatness of a spectrum");
strcpy(p_desc,
"Extract the spectral flatness of an audio spectrum");
strcpy(author, "Tristan Jehan");
*year = 2005;
break;
case SPREAD:
strcpy(name, "spread");
strcpy(p_name, "Spectral Spread");
strcpy(desc, "Extract the spectral spread of a spectrum");
strcpy(p_desc,
"Extract the spectral spread of an audio spectrum");
strcpy(author, "Norman Casagrande");
*year = 2005;
break;
case ZCR:
strcpy(name, "zcr");
strcpy(p_name, "Zero Crossing Rate");
strcpy(desc, "Extract the zero crossing rate of a vector");
strcpy(p_desc,
"Extract the zero crossing rate of an audio signal");
strcpy(author, "");
break;
case LOUDNESS:
strcpy(name, "loudness");
strcpy(p_name, "Loudness");
strcpy(desc,
"Extract the loudness of a signal from its spectrum");
strcpy(p_desc,
"Extract the loudness of an audio signal from its spectrum");
strcpy(author, "Moore, Glasberg et al");
*year = 2005;
break;
case HIGHEST_VALUE:
strcpy(name, "highest_value");
strcpy(p_name, "Highest Value");
strcpy(desc, "Extract the highest value from an input vector");
strcpy(p_desc, "Extract the highest value from a given range");
strcpy(author, "");
break;
case SUM:
strcpy(name, "sum");
strcpy(p_name, "Sum of Values");
strcpy(desc,
"Extract the sum of the values in an input vector");
strcpy(p_desc,
"Extract the sum of the values in a given range");
strcpy(author, "");
break;
case RMS_AMPLITUDE:
strcpy(name, "rms_amplitude");
strcpy(p_name, "RMS Amplitude");
strcpy(desc, "Extract the RMS amplitude of a signal");
strcpy(p_desc, "Extract the RMS amplitude of an audio signal");
strcpy(author, "");
break;
case POWER:
strcpy(name, "power");
strcpy(p_name, "Spectral Power");
strcpy(desc, "Extract the spectral power of a spectrum");
strcpy(p_desc,
"Extract the spectral power of an audio spectrum");
strcpy(author, "Bee Suan Ong");
*year = 2005;
break;
case SHARPNESS:
strcpy(name, "sharpness");
strcpy(p_name, "Spectral Sharpness");
strcpy(desc, "Extract the spectral sharpness of a spectrum");
strcpy(p_desc,
"Extract the spectral sharpness of an audio spectrum");
strcpy(author, "");
break;
case SPECTRAL_SLOPE:
strcpy(name, "spectral_slope");
strcpy(p_name, "Spectral Slope");
strcpy(desc, "Extract the spectral slope of a spectrum");
strcpy(p_desc,
"Extract the spectral slope of an audio spectrum");
strcpy(author, "");
break;
case HPS:
strcpy(name, "hps");
strcpy(p_name, "Harmonic Product Spectrum");
strcpy(desc,
"Extract the harmonic product spectrum of a spectrum");
strcpy(p_desc,
"Extract the harmonic product spectrum of an audio spectrum");
strcpy(author, "");
break;
case FLUX:
strcpy(name, "flux");
strcpy(p_name, "Spectral Flux");
strcpy(desc, "Extract the spectral flux of a spectrum");
strcpy(p_desc,
"Extract the spectral flux of an audio spectrum");
strcpy(author, "");
break;
case ATTACK_TIME:
strcpy(name, "attack_time");
strcpy(p_name, "Attack Time");
strcpy(desc, "Extract the attack time of a signal");
strcpy(p_desc, "Extract the attack time of an audio signal");
strcpy(author, "");
break;
case DECAY_TIME:
strcpy(name, "decay_time");
strcpy(p_name, "Decay Time");
strcpy(desc, "Extract the decay time of a signal");
strcpy(p_desc, "Extract the decay time of an audio signal");
strcpy(author, "");
break;
case DELTA_FEATURE:
strcpy(name, "delta_feature");
strcpy(p_name, "Delta Feature");
strcpy(desc, "Extract the time derivative of a feature");
strcpy(p_desc, "Extract the time derivative of a feature");
strcpy(author, "");
break;
case AUTOCORRELATION_FFT:
strcpy(name, "autocorrelation_fft");
strcpy(p_name, "Autocorrelation (FFT method)");
strcpy(desc, "Extract the autocorrelation of a signal");
strcpy(p_desc, "Extract the autocorrelation of an audio signal");
strcpy(author, "");
break;
case DCT:
strcpy(name, "dct");
strcpy(p_name, "Discrete Cosine Transform");
strcpy(desc, "Extract the DCT of a signal");
strcpy(p_desc, "Extract the DCT of an audio signal");
strcpy(author, "");
break;
case AUTOCORRELATION:
strcpy(name, "autocorrelation");
strcpy(p_name, "Autocorrelation");
strcpy(desc, "Extract the autocorrelation of a signal");
strcpy(p_desc,
"Extract the autocorrelation of an audio signal");
strcpy(author, "");
break;
case AMDF:
strcpy(name, "amdf");
strcpy(p_name, "Average Magnitude Difference Function");
strcpy(desc, "Extract the AMDF of a signal");
strcpy(p_desc, "Extract the AMDF of an audio signal");
strcpy(author, "");
break;
case ASDF:
strcpy(name, "asdf");
strcpy(p_name, "Average Squared Difference Function");
strcpy(desc, "Extract the ASDF of a signal");
strcpy(p_desc, "Extract the ASDF of an audio signal");
strcpy(author, "");
break;
default:
strcpy(name, "");
strcpy(p_name, "");
strcpy(desc, "");
strcpy(p_desc, "");
strcpy(author, "");
break;
}
}
return fd;
}
int xtract_free_descriptors(void *fd){
if (fd != NULL) {
free(fd);
}
return SUCCESS;
}
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