ref: ef7095cdc300247c5193c35d6c95e9ea58847e79
dir: /silk/fixed/silk_structs_FIX.h/
/***********************************************************************
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- Redistributions in binary form must reproduce the above copyright
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***********************************************************************/
#ifndef SILK_STRUCTS_FIX_H
#define SILK_STRUCTS_FIX_H
#include "silk_typedef.h"
#include "silk_main.h"
#include "silk_structs.h"
#ifdef __cplusplus
extern "C"
{
#endif
/********************************/
/* Noise shaping analysis state */
/********************************/
typedef struct {
SKP_int8 LastGainIndex;
SKP_int32 HarmBoost_smth_Q16;
SKP_int32 HarmShapeGain_smth_Q16;
SKP_int32 Tilt_smth_Q16;
} 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;
} silk_prefilter_state_FIX;
/********************************/
/* Encoder state FIX */
/********************************/
typedef struct {
silk_encoder_state sCmn; /* Common struct, shared with floating-point code */
silk_shape_state_FIX sShape; /* Shape state */
silk_prefilter_state_FIX sPrefilt; /* Prefilter State */
/* Buffer for find pitch and noise shape analysis */
SKP_DWORD_ALIGN SKP_int16 x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];/* Buffer for find pitch and noise shape analysis */
SKP_int LTPCorr_Q15; /* Normalized correlation from pitch lag estimator */
/* Parameters For LTP scaling Control */
SKP_int prevLTPredCodGain_Q7;
SKP_int HPLTPredCodGain_Q7;
} silk_encoder_state_FIX;
/************************/
/* Encoder control FIX */
/************************/
typedef struct {
/* 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;
SKP_int pitchL[ MAX_NB_SUBFR ];
/* 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;
/* measures */
SKP_int sparseness_Q8;
SKP_int32 predGain_Q16;
SKP_int LTPredCodGain_Q7;
SKP_int32 ResNrg[ MAX_NB_SUBFR ]; /* Residual energy per subframe */
SKP_int ResNrgQ[ MAX_NB_SUBFR ]; /* Q domain for the residual energy > 0 */
} silk_encoder_control_FIX;
/************************/
/* Encoder Super Struct */
/************************/
typedef struct {
silk_encoder_state_FIX state_Fxx[ ENCODER_NUM_CHANNELS ];
stereo_enc_state sStereo;
SKP_int32 nBitsExceeded;
SKP_int nChannelsAPI;
SKP_int nChannelsInternal;
SKP_int timeSinceSwitchAllowed_ms;
SKP_int allowBandwidthSwitch;
} silk_encoder;
#ifdef __cplusplus
}
#endif
#endif