jamulus/libs/celt/cc6_pitch.h

/* (C) 2007-2008 Jean-Marc Valin, CSIRO
*/
/**
   @file pitch.h
   @brief Pitch analysis
 */

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#ifndef cc6__PITCH_H
#define cc6__PITCH_H

#include "cc6_kiss_fftr.h"
#include "cc6_psy.h"
#include "cc6_modes.h"

cc6_kiss_fftr_cfg cc6_pitch_state_alloc(int max_lag);
void cc6_pitch_state_free(cc6_kiss_fftr_cfg st);

/** Find the optimal delay for the pitch prediction. Computation is
    done in the frequency domain, both to save time and to make it
    easier to apply psychoacoustic weighting */
void cc6_find_spectral_pitch(const cc6_CELTMode *m, cc6_kiss_fftr_cfg fft, const struct cc6_PsyDecay *decay, const cc6_celt_sig_t *x, const cc6_celt_sig_t *y, const cc6_celt_word16_t *window, cc6_celt_word16_t * __restrict X, int len, int max_pitch, int *pitch);

#endif