ref: 1c6c3d17a7d1868ef49834405f5f0ee9f59a5a00
dir: /silk/float/silk_structs_FLP.h/
/*********************************************************************** Copyright (c) 2006-2011, Skype Limited. All rights reserved. Redistribution and use in source and binary forms, with or without modification, (subject to the limitations in the disclaimer below) are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - Neither the name of Skype Limited, nor the names of specific contributors, may be used to endorse or promote products derived from this software without specific prior written permission. NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ***********************************************************************/ #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