shithub: opus

ref: e5736ae26a7b40b1cf1193761a2ac24d14223cdf
dir: /silk/silk_pitch_est_defines.h/

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#ifndef SILK_PE_DEFINES_H
#define SILK_PE_DEFINES_H

#include "silk_SigProc_FIX.h"

/************************************************************/
/* Definitions For Fix 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_SF_FRAME_LENGTH       (PE_SUB_FRAME * PE_MAX_FS_KHZ)

#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_CB_mn2                    1
#define PE_CB_mx2                    2

#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

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 added 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