Chris@69: /***********************************************************************
Chris@69: Copyright (c) 2006-2011, Skype Limited. All rights reserved.
Chris@69: Redistribution and use in source and binary forms, with or without
Chris@69: modification, are permitted provided that the following conditions
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Chris@69: - Redistributions of source code must retain the above copyright notice,
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Chris@69: - Redistributions in binary form must reproduce the above copyright
Chris@69: notice, this list of conditions and the following disclaimer in the
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Chris@69: - Neither the name of Internet Society, IETF or IETF Trust, nor the
Chris@69: names of specific contributors, may be used to endorse or promote
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Chris@69: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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Chris@69: ***********************************************************************/
Chris@69: 
Chris@69: #ifndef SILK_PE_DEFINES_H
Chris@69: #define SILK_PE_DEFINES_H
Chris@69: 
Chris@69: #include "SigProc_FIX.h"
Chris@69: 
Chris@69: /********************************************************/
Chris@69: /* Definitions for pitch estimator                      */
Chris@69: /********************************************************/
Chris@69: 
Chris@69: #define PE_MAX_FS_KHZ               16 /* Maximum sampling frequency used */
Chris@69: 
Chris@69: #define PE_MAX_NB_SUBFR             4
Chris@69: #define PE_SUBFR_LENGTH_MS          5   /* 5 ms */
Chris@69: 
Chris@69: #define PE_LTP_MEM_LENGTH_MS        ( 4 * PE_SUBFR_LENGTH_MS )
Chris@69: 
Chris@69: #define PE_MAX_FRAME_LENGTH_MS      ( PE_LTP_MEM_LENGTH_MS + PE_MAX_NB_SUBFR * PE_SUBFR_LENGTH_MS )
Chris@69: #define PE_MAX_FRAME_LENGTH         ( PE_MAX_FRAME_LENGTH_MS * PE_MAX_FS_KHZ )
Chris@69: #define PE_MAX_FRAME_LENGTH_ST_1    ( PE_MAX_FRAME_LENGTH >> 2 )
Chris@69: #define PE_MAX_FRAME_LENGTH_ST_2    ( PE_MAX_FRAME_LENGTH >> 1 )
Chris@69: 
Chris@69: #define PE_MAX_LAG_MS               18           /* 18 ms -> 56 Hz */
Chris@69: #define PE_MIN_LAG_MS               2            /* 2 ms -> 500 Hz */
Chris@69: #define PE_MAX_LAG                  ( PE_MAX_LAG_MS * PE_MAX_FS_KHZ )
Chris@69: #define PE_MIN_LAG                  ( PE_MIN_LAG_MS * PE_MAX_FS_KHZ )
Chris@69: 
Chris@69: #define PE_D_SRCH_LENGTH            24
Chris@69: 
Chris@69: #define PE_NB_STAGE3_LAGS           5
Chris@69: 
Chris@69: #define PE_NB_CBKS_STAGE2           3
Chris@69: #define PE_NB_CBKS_STAGE2_EXT       11
Chris@69: 
Chris@69: #define PE_NB_CBKS_STAGE3_MAX       34
Chris@69: #define PE_NB_CBKS_STAGE3_MID       24
Chris@69: #define PE_NB_CBKS_STAGE3_MIN       16
Chris@69: 
Chris@69: #define PE_NB_CBKS_STAGE3_10MS      12
Chris@69: #define PE_NB_CBKS_STAGE2_10MS      3
Chris@69: 
Chris@69: #define PE_SHORTLAG_BIAS            0.2f    /* for logarithmic weighting    */
Chris@69: #define PE_PREVLAG_BIAS             0.2f    /* for logarithmic weighting    */
Chris@69: #define PE_FLATCONTOUR_BIAS         0.05f
Chris@69: 
Chris@69: #define SILK_PE_MIN_COMPLEX         0
Chris@69: #define SILK_PE_MID_COMPLEX         1
Chris@69: #define SILK_PE_MAX_COMPLEX         2
Chris@69: 
Chris@69: /* Tables for 20 ms frames */
Chris@69: extern const opus_int8 silk_CB_lags_stage2[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE2_EXT ];
Chris@69: extern const opus_int8 silk_CB_lags_stage3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ];
Chris@69: extern const opus_int8 silk_Lag_range_stage3[ SILK_PE_MAX_COMPLEX + 1 ] [ PE_MAX_NB_SUBFR ][ 2 ];
Chris@69: extern const opus_int8 silk_nb_cbk_searchs_stage3[ SILK_PE_MAX_COMPLEX + 1 ];
Chris@69: 
Chris@69: /* Tables for 10 ms frames */
Chris@69: extern const opus_int8 silk_CB_lags_stage2_10_ms[ PE_MAX_NB_SUBFR >> 1][ 3 ];
Chris@69: extern const opus_int8 silk_CB_lags_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 12 ];
Chris@69: extern const opus_int8 silk_Lag_range_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 2 ];
Chris@69: 
Chris@69: #endif
Chris@69: