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26***********************************************************************/
27
28#ifndef SILK_PE_DEFINES_H
29#define SILK_PE_DEFINES_H
30
31#include "SigProc_FIX.h"
32
33/********************************************************/
34/* Definitions for pitch estimator                      */
35/********************************************************/
36
37#define PE_MAX_FS_KHZ               16 /* Maximum sampling frequency used */
38
39#define PE_MAX_NB_SUBFR             4
40#define PE_SUBFR_LENGTH_MS          5   /* 5 ms */
41
42#define PE_LTP_MEM_LENGTH_MS        ( 4 * PE_SUBFR_LENGTH_MS )
43
44#define PE_MAX_FRAME_LENGTH_MS      ( PE_LTP_MEM_LENGTH_MS + PE_MAX_NB_SUBFR * PE_SUBFR_LENGTH_MS )
45#define PE_MAX_FRAME_LENGTH         ( PE_MAX_FRAME_LENGTH_MS * PE_MAX_FS_KHZ )
46#define PE_MAX_FRAME_LENGTH_ST_1    ( PE_MAX_FRAME_LENGTH >> 2 )
47#define PE_MAX_FRAME_LENGTH_ST_2    ( PE_MAX_FRAME_LENGTH >> 1 )
48
49#define PE_MAX_LAG_MS               18           /* 18 ms -> 56 Hz */
50#define PE_MIN_LAG_MS               2            /* 2 ms -> 500 Hz */
51#define PE_MAX_LAG                  ( PE_MAX_LAG_MS * PE_MAX_FS_KHZ )
52#define PE_MIN_LAG                  ( PE_MIN_LAG_MS * PE_MAX_FS_KHZ )
53
54#define PE_D_SRCH_LENGTH            24
55
56#define PE_NB_STAGE3_LAGS           5
57
58#define PE_NB_CBKS_STAGE2           3
59#define PE_NB_CBKS_STAGE2_EXT       11
60
61#define PE_NB_CBKS_STAGE3_MAX       34
62#define PE_NB_CBKS_STAGE3_MID       24
63#define PE_NB_CBKS_STAGE3_MIN       16
64
65#define PE_NB_CBKS_STAGE3_10MS      12
66#define PE_NB_CBKS_STAGE2_10MS      3
67
68#define PE_SHORTLAG_BIAS            0.2f    /* for logarithmic weighting    */
69#define PE_PREVLAG_BIAS             0.2f    /* for logarithmic weighting    */
70#define PE_FLATCONTOUR_BIAS         0.05f
71
72#define SILK_PE_MIN_COMPLEX         0
73#define SILK_PE_MID_COMPLEX         1
74#define SILK_PE_MAX_COMPLEX         2
75
76/* Tables for 20 ms frames */
77extern const opus_int8 silk_CB_lags_stage2[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE2_EXT ];
78extern const opus_int8 silk_CB_lags_stage3[ PE_MAX_NB_SUBFR ][ PE_NB_CBKS_STAGE3_MAX ];
79extern const opus_int8 silk_Lag_range_stage3[ SILK_PE_MAX_COMPLEX + 1 ] [ PE_MAX_NB_SUBFR ][ 2 ];
80extern const opus_int8 silk_nb_cbk_searchs_stage3[ SILK_PE_MAX_COMPLEX + 1 ];
81
82/* Tables for 10 ms frames */
83extern const opus_int8 silk_CB_lags_stage2_10_ms[ PE_MAX_NB_SUBFR >> 1][ 3 ];
84extern const opus_int8 silk_CB_lags_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 12 ];
85extern const opus_int8 silk_Lag_range_stage3_10_ms[ PE_MAX_NB_SUBFR >> 1 ][ 2 ];
86
87#endif
88
89