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