|
Packit |
664db3 |
/* (C) 2007-2008 Jean-Marc Valin, CSIRO
|
|
Packit |
664db3 |
*/
|
|
Packit |
664db3 |
/**
|
|
Packit |
664db3 |
@file pitch.h
|
|
Packit |
664db3 |
@brief Pitch analysis
|
|
Packit |
664db3 |
*/
|
|
Packit |
664db3 |
|
|
Packit |
664db3 |
/*
|
|
Packit |
664db3 |
Redistribution and use in source and binary forms, with or without
|
|
Packit |
664db3 |
modification, are permitted provided that the following conditions
|
|
Packit |
664db3 |
are met:
|
|
Packit |
664db3 |
|
|
Packit |
664db3 |
- Redistributions of source code must retain the above copyright
|
|
Packit |
664db3 |
notice, this list of conditions and the following disclaimer.
|
|
Packit |
664db3 |
|
|
Packit |
664db3 |
- Redistributions in binary form must reproduce the above copyright
|
|
Packit |
664db3 |
notice, this list of conditions and the following disclaimer in the
|
|
Packit |
664db3 |
documentation and/or other materials provided with the distribution.
|
|
Packit |
664db3 |
|
|
Packit |
664db3 |
- Neither the name of the Xiph.org Foundation nor the names of its
|
|
Packit |
664db3 |
contributors may be used to endorse or promote products derived from
|
|
Packit |
664db3 |
this software without specific prior written permission.
|
|
Packit |
664db3 |
|
|
Packit |
664db3 |
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
Packit |
664db3 |
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
Packit |
664db3 |
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
Packit |
664db3 |
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
|
|
Packit |
664db3 |
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
Packit |
664db3 |
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
Packit |
664db3 |
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
Packit |
664db3 |
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
Packit |
664db3 |
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
Packit |
664db3 |
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
Packit |
664db3 |
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
Packit |
664db3 |
*/
|
|
Packit |
664db3 |
|
|
Packit |
664db3 |
|
|
Packit |
664db3 |
#ifndef _PITCH_H
|
|
Packit |
664db3 |
#define _PITCH_H
|
|
Packit |
664db3 |
|
|
Packit |
664db3 |
#include "kiss_fftr.h"
|
|
Packit |
664db3 |
#include "psy.h"
|
|
Packit |
664db3 |
#include "modes.h"
|
|
Packit |
664db3 |
|
|
Packit |
664db3 |
kiss_fftr_cfg pitch_state_alloc(int max_lag);
|
|
Packit |
664db3 |
void pitch_state_free(kiss_fftr_cfg st);
|
|
Packit |
664db3 |
|
|
Packit |
664db3 |
/** Find the optimal delay for the pitch prediction. Computation is
|
|
Packit |
664db3 |
done in the frequency domain, both to save time and to make it
|
|
Packit |
664db3 |
easier to apply psychoacoustic weighting */
|
|
Packit |
664db3 |
void find_spectral_pitch(const CELTMode *m, kiss_fftr_cfg fft, const struct PsyDecay *decay, const celt_sig_t *x, const celt_sig_t *y, const celt_word16_t *window, celt_word16_t * restrict X, int len, int max_pitch, int *pitch);
|
|
Packit |
664db3 |
|
|
Packit |
664db3 |
#endif
|