ref: 1c6c3d17a7d1868ef49834405f5f0ee9f59a5a00
dir: /silk/float/silk_structs_FLP.h/
/***********************************************************************
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***********************************************************************/
#ifndef SILK_STRUCTS_FLP_H
#define SILK_STRUCTS_FLP_H
#include "silk_typedef.h"
#include "silk_main.h"
#include "silk_structs.h"
#ifdef __cplusplus
extern "C"
{
#endif
/********************************/
/* Noise shaping analysis state */
/********************************/
typedef struct {
opus_int8 LastGainIndex;
SKP_float HarmBoost_smth;
SKP_float HarmShapeGain_smth;
SKP_float Tilt_smth;
} silk_shape_state_FLP;
/********************************/
/* Prefilter state */
/********************************/
typedef struct {
SKP_float sLTP_shp[ LTP_BUF_LENGTH ];
SKP_float sAR_shp[ MAX_SHAPE_LPC_ORDER + 1 ];
opus_int sLTP_shp_buf_idx;
SKP_float sLF_AR_shp;
SKP_float sLF_MA_shp;
SKP_float sHarmHP;
opus_int32 rand_seed;
opus_int lagPrev;
} silk_prefilter_state_FLP;
/********************************/
/* Encoder state FLP */
/********************************/
typedef struct {
silk_encoder_state sCmn; /* Common struct, shared with fixed-point code */
silk_shape_state_FLP sShape; /* Noise shaping state */
silk_prefilter_state_FLP sPrefilt; /* Prefilter State */
/* Buffer for find pitch and noise shape analysis */
SKP_float x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];/* Buffer for find pitch and noise shape analysis */
SKP_float LTPCorr; /* Normalized correlation from pitch lag estimator */
/* Parameters for LTP scaling control */
SKP_float prevLTPredCodGain;
SKP_float HPLTPredCodGain;
} silk_encoder_state_FLP;
/************************/
/* Encoder control FLP */
/************************/
typedef struct {
/* Prediction and coding parameters */
SKP_float Gains[ MAX_NB_SUBFR ];
SKP_float PredCoef[ 2 ][ MAX_LPC_ORDER ]; /* holds interpolated and final coefficients */
SKP_float LTPCoef[LTP_ORDER * MAX_NB_SUBFR];
SKP_float LTP_scale;
opus_int pitchL[ MAX_NB_SUBFR ];
/* Noise shaping parameters */
SKP_float AR1[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
SKP_float AR2[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
SKP_float LF_MA_shp[ MAX_NB_SUBFR ];
SKP_float LF_AR_shp[ MAX_NB_SUBFR ];
SKP_float GainsPre[ MAX_NB_SUBFR ];
SKP_float HarmBoost[ MAX_NB_SUBFR ];
SKP_float Tilt[ MAX_NB_SUBFR ];
SKP_float HarmShapeGain[ MAX_NB_SUBFR ];
SKP_float Lambda;
SKP_float input_quality;
SKP_float coding_quality;
/* Measures */
SKP_float sparseness;
SKP_float predGain;
SKP_float LTPredCodGain;
SKP_float ResNrg[ MAX_NB_SUBFR ]; /* Residual energy per subframe */
} silk_encoder_control_FLP;
/************************/
/* Encoder Super Struct */
/************************/
typedef struct {
silk_encoder_state_FLP state_Fxx[ ENCODER_NUM_CHANNELS ];
stereo_enc_state sStereo;
opus_int32 nBitsExceeded;
opus_int nChannelsAPI;
opus_int nChannelsInternal;
opus_int timeSinceSwitchAllowed_ms;
opus_int allowBandwidthSwitch;
} silk_encoder;
#ifdef __cplusplus
}
#endif
#endif