cannam@154: /***********************************************************************
cannam@154: Copyright (c) 2006-2011, Skype Limited. All rights reserved.
cannam@154: Redistribution and use in source and binary forms, with or without
cannam@154: modification, are permitted provided that the following conditions
cannam@154: are met:
cannam@154: - Redistributions of source code must retain the above copyright notice,
cannam@154: this list of conditions and the following disclaimer.
cannam@154: - Redistributions in binary form must reproduce the above copyright
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cannam@154: documentation and/or other materials provided with the distribution.
cannam@154: - Neither the name of Internet Society, IETF or IETF Trust, nor the
cannam@154: names of specific contributors, may be used to endorse or promote
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cannam@154: permission.
cannam@154: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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cannam@154: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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cannam@154: SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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cannam@154: ***********************************************************************/
cannam@154: 
cannam@154: #ifndef SILK_PE_DEFINES_H
cannam@154: #define SILK_PE_DEFINES_H
cannam@154: 
cannam@154: #include "SigProc_FIX.h"
cannam@154: 
cannam@154: /********************************************************/
cannam@154: /* Definitions for pitch estimator                      */
cannam@154: /********************************************************/
cannam@154: 
cannam@154: #define PE_MAX_FS_KHZ               16 /* Maximum sampling frequency used */
cannam@154: 
cannam@154: #define PE_MAX_NB_SUBFR             4
cannam@154: #define PE_SUBFR_LENGTH_MS          5   /* 5 ms */
cannam@154: 
cannam@154: #define PE_LTP_MEM_LENGTH_MS        ( 4 * PE_SUBFR_LENGTH_MS )
cannam@154: 
cannam@154: #define PE_MAX_FRAME_LENGTH_MS      ( PE_LTP_MEM_LENGTH_MS + PE_MAX_NB_SUBFR * PE_SUBFR_LENGTH_MS )
cannam@154: #define PE_MAX_FRAME_LENGTH         ( PE_MAX_FRAME_LENGTH_MS * PE_MAX_FS_KHZ )
cannam@154: #define PE_MAX_FRAME_LENGTH_ST_1    ( PE_MAX_FRAME_LENGTH >> 2 )
cannam@154: #define PE_MAX_FRAME_LENGTH_ST_2    ( PE_MAX_FRAME_LENGTH >> 1 )
cannam@154: 
cannam@154: #define PE_MAX_LAG_MS               18           /* 18 ms -> 56 Hz */
cannam@154: #define PE_MIN_LAG_MS               2            /* 2 ms -> 500 Hz */
cannam@154: #define PE_MAX_LAG                  ( PE_MAX_LAG_MS * PE_MAX_FS_KHZ )
cannam@154: #define PE_MIN_LAG                  ( PE_MIN_LAG_MS * PE_MAX_FS_KHZ )
cannam@154: 
cannam@154: #define PE_D_SRCH_LENGTH            24
cannam@154: 
cannam@154: #define PE_NB_STAGE3_LAGS           5
cannam@154: 
cannam@154: #define PE_NB_CBKS_STAGE2           3
cannam@154: #define PE_NB_CBKS_STAGE2_EXT       11
cannam@154: 
cannam@154: #define PE_NB_CBKS_STAGE3_MAX       34
cannam@154: #define PE_NB_CBKS_STAGE3_MID       24
cannam@154: #define PE_NB_CBKS_STAGE3_MIN       16
cannam@154: 
cannam@154: #define PE_NB_CBKS_STAGE3_10MS      12
cannam@154: #define PE_NB_CBKS_STAGE2_10MS      3
cannam@154: 
cannam@154: #define PE_SHORTLAG_BIAS            0.2f    /* for logarithmic weighting    */
cannam@154: #define PE_PREVLAG_BIAS             0.2f    /* for logarithmic weighting    */
cannam@154: #define PE_FLATCONTOUR_BIAS         0.05f
cannam@154: 
cannam@154: #define SILK_PE_MIN_COMPLEX         0
cannam@154: #define SILK_PE_MID_COMPLEX         1
cannam@154: #define SILK_PE_MAX_COMPLEX         2
cannam@154: 
cannam@154: /* Tables for 20 ms frames */
cannam@154: extern const opus_int8 silk_CB_lags_stage2[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE2_EXT ];
cannam@154: extern const opus_int8 silk_CB_lags_stage3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ];
cannam@154: extern const opus_int8 silk_Lag_range_stage3[ SILK_PE_MAX_COMPLEX + 1 ] [ PE_MAX_NB_SUBFR ][ 2 ];
cannam@154: extern const opus_int8 silk_nb_cbk_searchs_stage3[ SILK_PE_MAX_COMPLEX + 1 ];
cannam@154: 
cannam@154: /* Tables for 10 ms frames */
cannam@154: extern const opus_int8 silk_CB_lags_stage2_10_ms[ PE_MAX_NB_SUBFR >> 1][ 3 ];
cannam@154: extern const opus_int8 silk_CB_lags_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 12 ];
cannam@154: extern const opus_int8 silk_Lag_range_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 2 ];
cannam@154: 
cannam@154: #endif
cannam@154: