Chris@69: /***********************************************************************
Chris@69: Copyright (c) 2006-2011, Skype Limited. All rights reserved.
Chris@69: Redistribution and use in source and binary forms, with or without
Chris@69: modification, are permitted provided that the following conditions
Chris@69: are met:
Chris@69: - Redistributions of source code must retain the above copyright notice,
Chris@69: this list of conditions and the following disclaimer.
Chris@69: - Redistributions in binary form must reproduce the above copyright
Chris@69: notice, this list of conditions and the following disclaimer in the
Chris@69: documentation and/or other materials provided with the distribution.
Chris@69: - Neither the name of Internet Society, IETF or IETF Trust, nor the
Chris@69: names of specific contributors, may be used to endorse or promote
Chris@69: products derived from this software without specific prior written
Chris@69: permission.
Chris@69: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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Chris@69: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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Chris@69: POSSIBILITY OF SUCH DAMAGE.
Chris@69: ***********************************************************************/
Chris@69: 
Chris@69: #ifndef SILK_STRUCTS_FLP_H
Chris@69: #define SILK_STRUCTS_FLP_H
Chris@69: 
Chris@69: #include "typedef.h"
Chris@69: #include "main.h"
Chris@69: #include "structs.h"
Chris@69: 
Chris@69: #ifdef __cplusplus
Chris@69: extern "C"
Chris@69: {
Chris@69: #endif
Chris@69: 
Chris@69: /********************************/
Chris@69: /* Noise shaping analysis state */
Chris@69: /********************************/
Chris@69: typedef struct {
Chris@69:     opus_int8                   LastGainIndex;
Chris@69:     silk_float                  HarmShapeGain_smth;
Chris@69:     silk_float                  Tilt_smth;
Chris@69: } silk_shape_state_FLP;
Chris@69: 
Chris@69: /********************************/
Chris@69: /* Encoder state FLP            */
Chris@69: /********************************/
Chris@69: typedef struct {
Chris@69:     silk_encoder_state          sCmn;                               /* Common struct, shared with fixed-point code */
Chris@69:     silk_shape_state_FLP        sShape;                             /* Noise shaping state */
Chris@69: 
Chris@69:     /* Buffer for find pitch and noise shape analysis */
Chris@69:     silk_float                  x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];/* Buffer for find pitch and noise shape analysis */
Chris@69:     silk_float                  LTPCorr;                            /* Normalized correlation from pitch lag estimator */
Chris@69: } silk_encoder_state_FLP;
Chris@69: 
Chris@69: /************************/
Chris@69: /* Encoder control FLP  */
Chris@69: /************************/
Chris@69: typedef struct {
Chris@69:     /* Prediction and coding parameters */
Chris@69:     silk_float                  Gains[ MAX_NB_SUBFR ];
Chris@69:     silk_float                  PredCoef[ 2 ][ MAX_LPC_ORDER ];     /* holds interpolated and final coefficients */
Chris@69:     silk_float                  LTPCoef[LTP_ORDER * MAX_NB_SUBFR];
Chris@69:     silk_float                  LTP_scale;
Chris@69:     opus_int                    pitchL[ MAX_NB_SUBFR ];
Chris@69: 
Chris@69:     /* Noise shaping parameters */
Chris@69:     silk_float                  AR[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
Chris@69:     silk_float                  LF_MA_shp[     MAX_NB_SUBFR ];
Chris@69:     silk_float                  LF_AR_shp[     MAX_NB_SUBFR ];
Chris@69:     silk_float                  Tilt[          MAX_NB_SUBFR ];
Chris@69:     silk_float                  HarmShapeGain[ MAX_NB_SUBFR ];
Chris@69:     silk_float                  Lambda;
Chris@69:     silk_float                  input_quality;
Chris@69:     silk_float                  coding_quality;
Chris@69: 
Chris@69:     /* Measures */
Chris@69:     silk_float                  predGain;
Chris@69:     silk_float                  LTPredCodGain;
Chris@69:     silk_float                  ResNrg[ MAX_NB_SUBFR ];             /* Residual energy per subframe */
Chris@69: 
Chris@69:     /* Parameters for CBR mode */
Chris@69:     opus_int32                  GainsUnq_Q16[ MAX_NB_SUBFR ];
Chris@69:     opus_int8                   lastGainIndexPrev;
Chris@69: } silk_encoder_control_FLP;
Chris@69: 
Chris@69: /************************/
Chris@69: /* Encoder Super Struct */
Chris@69: /************************/
Chris@69: typedef struct {
Chris@69:     silk_encoder_state_FLP      state_Fxx[ ENCODER_NUM_CHANNELS ];
Chris@69:     stereo_enc_state            sStereo;
Chris@69:     opus_int32                  nBitsUsedLBRR;
Chris@69:     opus_int32                  nBitsExceeded;
Chris@69:     opus_int                    nChannelsAPI;
Chris@69:     opus_int                    nChannelsInternal;
Chris@69:     opus_int                    nPrevChannelsInternal;
Chris@69:     opus_int                    timeSinceSwitchAllowed_ms;
Chris@69:     opus_int                    allowBandwidthSwitch;
Chris@69:     opus_int                    prev_decode_only_middle;
Chris@69: } silk_encoder;
Chris@69: 
Chris@69: #ifdef __cplusplus
Chris@69: }
Chris@69: #endif
Chris@69: 
Chris@69: #endif