ref: f133bac6f9199ca79b6e63dabf1c9839d35d207f
dir: /silk/fixed/structs_FIX.h/
/***********************************************************************
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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***********************************************************************/
#ifndef SILK_STRUCTS_FIX_H
#define SILK_STRUCTS_FIX_H
#include "typedef.h"
#include "main.h"
#include "structs.h"
#ifdef __cplusplus
extern "C"
{
#endif
/********************************/
/* Noise shaping analysis state */
/********************************/
typedef struct {
opus_int8 LastGainIndex;
opus_int32 HarmBoost_smth_Q16;
opus_int32 HarmShapeGain_smth_Q16;
opus_int32 Tilt_smth_Q16;
} silk_shape_state_FIX;
/********************************/
/* Prefilter state */
/********************************/
typedef struct {
opus_int16 sLTP_shp[ LTP_BUF_LENGTH ];
opus_int32 sAR_shp[ MAX_SHAPE_LPC_ORDER + 1 ];
opus_int sLTP_shp_buf_idx;
opus_int32 sLF_AR_shp_Q12;
opus_int32 sLF_MA_shp_Q12;
opus_int32 sHarmHP_Q2;
opus_int32 rand_seed;
opus_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 */
silk_DWORD_ALIGN opus_int16 x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];/* Buffer for find pitch and noise shape analysis */
opus_int LTPCorr_Q15; /* Normalized correlation from pitch lag estimator */
} silk_encoder_state_FIX;
/************************/
/* Encoder control FIX */
/************************/
typedef struct {
/* Prediction and coding parameters */
opus_int32 Gains_Q16[ MAX_NB_SUBFR ];
silk_DWORD_ALIGN opus_int16 PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ];
opus_int16 LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ];
opus_int LTP_scale_Q14;
opus_int pitchL[ MAX_NB_SUBFR ];
/* Noise shaping parameters */
/* Testing */
silk_DWORD_ALIGN opus_int16 AR1_Q13[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
silk_DWORD_ALIGN opus_int16 AR2_Q13[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
opus_int32 LF_shp_Q14[ MAX_NB_SUBFR ]; /* Packs two int16 coefficients per int32 value */
opus_int GainsPre_Q14[ MAX_NB_SUBFR ];
opus_int HarmBoost_Q14[ MAX_NB_SUBFR ];
opus_int Tilt_Q14[ MAX_NB_SUBFR ];
opus_int HarmShapeGain_Q14[ MAX_NB_SUBFR ];
opus_int Lambda_Q10;
opus_int input_quality_Q14;
opus_int coding_quality_Q14;
/* measures */
opus_int sparseness_Q8;
opus_int32 predGain_Q16;
opus_int LTPredCodGain_Q7;
opus_int32 ResNrg[ MAX_NB_SUBFR ]; /* Residual energy per subframe */
opus_int ResNrgQ[ MAX_NB_SUBFR ]; /* Q domain for the residual energy > 0 */
/* Parameters for CBR mode */
opus_int32 GainsUnq_Q16[ MAX_NB_SUBFR ];
opus_int8 lastGainIndexPrev;
} silk_encoder_control_FIX;
/************************/
/* Encoder Super Struct */
/************************/
typedef struct {
silk_encoder_state_FIX state_Fxx[ ENCODER_NUM_CHANNELS ];
stereo_enc_state sStereo;
opus_int32 nBitsExceeded;
opus_int nChannelsAPI;
opus_int nChannelsInternal;
opus_int nPrevChannelsInternal;
opus_int timeSinceSwitchAllowed_ms;
opus_int allowBandwidthSwitch;
opus_int prev_decode_only_middle;
} silk_encoder;
#ifdef __cplusplus
}
#endif
#endif