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67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
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/*
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TiMidity++ -- MIDI to WAVE converter and player
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Copyright (C) 1999-2002 Masanao Izumo <mo@goice.co.jp>
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Copyright (C) 1995 Tuukka Toivonen <tt@cgs.fi>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <vector>
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namespace TimidityPlus
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{
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extern const float pitch_freq_table[129];
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extern const float pitch_freq_ub_table[129];
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extern const float pitch_freq_lb_table[129];
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extern const int chord_table[4][3][3];
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extern int assign_pitch_to_freq(float freq);
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enum
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{
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CHORD_MAJOR = 0,
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CHORD_MINOR = 3,
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CHORD_DIM = 6,
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CHORD_FIFTH = 9,
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LOWEST_PITCH = 0,
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HIGHEST_PITCH = 127
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};
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struct Sample;
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class Freq
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{
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std::vector<float> floatData;
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std::vector<float> magData;
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std::vector<float> pruneMagData;
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std::vector<int> ipa;
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std::vector<float> wa;
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std::vector<int> fft1BinToPitch;
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uint32_t oldfftsize = 0;
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float pitchmags[129] = { 0 };
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double pitchbins[129] = { 0 };
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double new_pitchbins[129] = { 0 };
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int assign_chord(double *pitchbins, int *chord, int min_guesspitch, int max_guesspitch, int root_pitch);
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int freq_initialize_fft_arrays(Sample *sp);
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public:
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float freq_fourier(Sample *sp, int *chord);
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};
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}
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