ref: d513d743fb5d9802e2d39d74a13f5628c1553059
dir: /src_FIX/SKP_Silk_structs_FIX.h/
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#ifndef SKP_SILK_STRUCTS_FIX_H
#define SKP_SILK_STRUCTS_FIX_H
#include "SKP_Silk_typedef.h"
#include "SKP_Silk_main.h"
#include "SKP_Silk_structs.h"
#ifdef __cplusplus
extern "C"
{
#endif
/********************************/
/* Noise shaping analysis state */
/********************************/
typedef struct {
SKP_int LastGainIndex;
SKP_int32 HarmBoost_smth_Q16;
SKP_int32 HarmShapeGain_smth_Q16;
SKP_int32 Tilt_smth_Q16;
} SKP_Silk_shape_state_FIX;
/********************************/
/* Prefilter state */
/********************************/
typedef struct {
SKP_int16 sLTP_shp[ LTP_BUF_LENGTH ];
SKP_int32 sAR_shp[ MAX_SHAPE_LPC_ORDER + 1 ];
SKP_int sLTP_shp_buf_idx;
SKP_int32 sLF_AR_shp_Q12;
SKP_int32 sLF_MA_shp_Q12;
SKP_int sHarmHP;
SKP_int32 rand_seed;
SKP_int lagPrev;
} SKP_Silk_prefilter_state_FIX;
/*****************************/
/* Prediction analysis state */
/*****************************/
typedef struct {
SKP_int pitch_LPC_win_length;
SKP_int min_pitch_lag; /* Lowest possible pitch lag (samples) */
SKP_int max_pitch_lag; /* Highest possible pitch lag (samples) */
SKP_int prev_NLSFq_Q15[ MAX_LPC_ORDER ]; /* Previously quantized NLSF vector */
} SKP_Silk_predict_state_FIX;
/********************************/
/* Encoder state FIX */
/********************************/
typedef struct {
SKP_Silk_encoder_state sCmn; /* Common struct, shared with floating-point code */
#if HIGH_PASS_INPUT
SKP_int32 variable_HP_smth1_Q15; /* State of first smoother */
SKP_int32 variable_HP_smth2_Q15; /* State of second smoother */
#endif
SKP_Silk_shape_state_FIX sShape; /* Shape state */
SKP_Silk_prefilter_state_FIX sPrefilt; /* Prefilter State */
SKP_Silk_predict_state_FIX sPred; /* Prediction state */
SKP_Silk_nsq_state sNSQ; /* Noise Shape Quantizer State */
SKP_Silk_nsq_state sNSQ_LBRR; /* Noise Shape Quantizer State ( for low bitrate redundancy ) */
/* Buffer for find pitch and noise shape analysis */
SKP_DWORD_ALIGN SKP_int16 x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];
SKP_int LTPCorr_Q15; /* Normalized correlation from pitch lag estimator */
SKP_int mu_LTP_Q8; /* Rate-distortion tradeoff in LTP quantization */
SKP_int32 SNR_dB_Q7; /* Quality setting */
SKP_int32 avgGain_Q16; /* average gain during active speech */
SKP_int32 avgGain_Q16_one_bit_per_sample; /* average gain during active speech */
SKP_int BufferedInChannel_ms; /* Simulated number of ms buffer because of exceeded TargetRate_bps */
SKP_int speech_activity_Q8; /* Speech activity in Q8 */
/* Parameters For LTP scaling Control */
SKP_int prevLTPredCodGain_Q7;
SKP_int HPLTPredCodGain_Q7;
SKP_int32 inBandFEC_SNR_comp_Q8; /* Compensation to SNR_dB when using inband FEC Voiced */
} SKP_Silk_encoder_state_FIX;
/************************/
/* Encoder control FIX */
/************************/
typedef struct {
SKP_Silk_encoder_control sCmn; /* Common struct, shared with floating-point code */
/* Prediction and coding parameters */
SKP_int32 Gains_Q16[ MAX_NB_SUBFR ];
SKP_DWORD_ALIGN SKP_int16 PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ];
SKP_int16 LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ];
SKP_int LTP_scale_Q14;
/* Noise shaping parameters */
/* Testing */
SKP_DWORD_ALIGN SKP_int16 AR1_Q13[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
SKP_DWORD_ALIGN SKP_int16 AR2_Q13[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
SKP_int32 LF_shp_Q14[ MAX_NB_SUBFR ]; /* Packs two int16 coefficients per int32 value */
SKP_int GainsPre_Q14[ MAX_NB_SUBFR ];
SKP_int HarmBoost_Q14[ MAX_NB_SUBFR ];
SKP_int Tilt_Q14[ MAX_NB_SUBFR ];
SKP_int HarmShapeGain_Q14[ MAX_NB_SUBFR ];
SKP_int Lambda_Q10;
SKP_int input_quality_Q14;
SKP_int coding_quality_Q14;
SKP_int32 pitch_freq_low_Hz;
SKP_int current_SNR_dB_Q7;
/* measures */
SKP_int sparseness_Q8;
SKP_int32 predGain_Q16;
SKP_int LTPredCodGain_Q7;
SKP_int input_quality_bands_Q15[ VAD_N_BANDS ];
SKP_int input_tilt_Q15;
SKP_int32 ResNrg[ MAX_NB_SUBFR ]; /* Residual energy per subframe */
SKP_int ResNrgQ[ MAX_NB_SUBFR ]; /* Q domain for the residual energy > 0 */
} SKP_Silk_encoder_control_FIX;
#ifdef __cplusplus
}
#endif
#endif