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/***********************************************************************
Copyright (c) 2006-2011, Skype Limited. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
- Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of Internet Society, IETF or IETF Trust, nor the
names of specific contributors, may be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
***********************************************************************/
#ifndef SILK_PE_DEFINES_H
#define SILK_PE_DEFINES_H
#include "SigProc_FIX.h"
/********************************************************/
/* Definitions for pitch estimator */
/********************************************************/
#define PE_MAX_FS_KHZ 16 /* Maximum sampling frequency used */
#define PE_MAX_NB_SUBFR 4
#define PE_SUBFR_LENGTH_MS 5 /* 5 ms */
#define PE_LTP_MEM_LENGTH_MS ( 4 * PE_SUBFR_LENGTH_MS )
#define PE_MAX_FRAME_LENGTH_MS ( PE_LTP_MEM_LENGTH_MS + PE_MAX_NB_SUBFR * PE_SUBFR_LENGTH_MS )
#define PE_MAX_FRAME_LENGTH ( PE_MAX_FRAME_LENGTH_MS * PE_MAX_FS_KHZ )
#define PE_MAX_FRAME_LENGTH_ST_1 ( PE_MAX_FRAME_LENGTH >> 2 )
#define PE_MAX_FRAME_LENGTH_ST_2 ( PE_MAX_FRAME_LENGTH >> 1 )
#define PE_MAX_LAG_MS 18 /* 18 ms -> 56 Hz */
#define PE_MIN_LAG_MS 2 /* 2 ms -> 500 Hz */
#define PE_MAX_LAG ( PE_MAX_LAG_MS * PE_MAX_FS_KHZ )
#define PE_MIN_LAG ( PE_MIN_LAG_MS * PE_MAX_FS_KHZ )
#define PE_D_SRCH_LENGTH 24
#define PE_NB_STAGE3_LAGS 5
#define PE_NB_CBKS_STAGE2 3
#define PE_NB_CBKS_STAGE2_EXT 11
#define PE_NB_CBKS_STAGE3_MAX 34
#define PE_NB_CBKS_STAGE3_MID 24
#define PE_NB_CBKS_STAGE3_MIN 16
#define PE_NB_CBKS_STAGE3_10MS 12
#define PE_NB_CBKS_STAGE2_10MS 3
#define PE_SHORTLAG_BIAS 0.2f /* for logarithmic weighting */
#define PE_PREVLAG_BIAS 0.2f /* for logarithmic weighting */
#define PE_FLATCONTOUR_BIAS 0.05f
#define SILK_PE_MIN_COMPLEX 0
#define SILK_PE_MID_COMPLEX 1
#define SILK_PE_MAX_COMPLEX 2
/* Tables for 20 ms frames */
extern const opus_int8 silk_CB_lags_stage2[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE2_EXT ];
extern const opus_int8 silk_CB_lags_stage3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ];
extern const opus_int8 silk_Lag_range_stage3[ SILK_PE_MAX_COMPLEX + 1 ] [ PE_MAX_NB_SUBFR ][ 2 ];
extern const opus_int8 silk_nb_cbk_searchs_stage3[ SILK_PE_MAX_COMPLEX + 1 ];
/* Tables for 10 ms frames */
extern const opus_int8 silk_CB_lags_stage2_10_ms[ PE_MAX_NB_SUBFR >> 1][ 3 ];
extern const opus_int8 silk_CB_lags_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 12 ];
extern const opus_int8 silk_Lag_range_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 2 ];
#endif
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