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105 lines
4.7 KiB
105 lines
4.7 KiB
/*********************************************************************** |
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Copyright (c) 2006-2011, Skype Limited. All rights reserved. |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions |
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are met: |
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- Redistributions of source code must retain the above copyright notice, |
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this list of conditions and the following disclaimer. |
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- Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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- Neither the name of Internet Society, IETF or IETF Trust, nor the |
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names of specific contributors, may be used to endorse or promote |
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products derived from this software without specific prior written |
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permission. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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POSSIBILITY OF SUCH DAMAGE. |
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***********************************************************************/ |
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#ifndef SILK_STRUCTS_FLP_H |
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#define SILK_STRUCTS_FLP_H |
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#include "typedef.h" |
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#include "main.h" |
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#include "structs.h" |
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/********************************/ |
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/* Noise shaping analysis state */ |
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/********************************/ |
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typedef struct { |
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opus_int8 LastGainIndex; |
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silk_float HarmShapeGain_smth; |
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silk_float Tilt_smth; |
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} silk_shape_state_FLP; |
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/********************************/ |
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/* Encoder state FLP */ |
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/********************************/ |
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typedef struct { |
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silk_encoder_state sCmn; /* Common struct, shared with fixed-point code */ |
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silk_shape_state_FLP sShape; /* Noise shaping state */ |
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/* Buffer for find pitch and noise shape analysis */ |
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silk_float x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];/* Buffer for find pitch and noise shape analysis */ |
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silk_float LTPCorr; /* Normalized correlation from pitch lag estimator */ |
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} silk_encoder_state_FLP; |
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/************************/ |
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/* Encoder control FLP */ |
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/************************/ |
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typedef struct { |
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/* Prediction and coding parameters */ |
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silk_float Gains[ MAX_NB_SUBFR ]; |
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silk_float PredCoef[ 2 ][ MAX_LPC_ORDER ]; /* holds interpolated and final coefficients */ |
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silk_float LTPCoef[LTP_ORDER * MAX_NB_SUBFR]; |
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silk_float LTP_scale; |
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opus_int pitchL[ MAX_NB_SUBFR ]; |
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/* Noise shaping parameters */ |
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silk_float AR[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ]; |
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silk_float LF_MA_shp[ MAX_NB_SUBFR ]; |
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silk_float LF_AR_shp[ MAX_NB_SUBFR ]; |
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silk_float Tilt[ MAX_NB_SUBFR ]; |
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silk_float HarmShapeGain[ MAX_NB_SUBFR ]; |
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silk_float Lambda; |
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silk_float input_quality; |
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silk_float coding_quality; |
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/* Measures */ |
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silk_float predGain; |
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silk_float LTPredCodGain; |
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silk_float ResNrg[ MAX_NB_SUBFR ]; /* Residual energy per subframe */ |
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/* Parameters for CBR mode */ |
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opus_int32 GainsUnq_Q16[ MAX_NB_SUBFR ]; |
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opus_int8 lastGainIndexPrev; |
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} silk_encoder_control_FLP; |
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/************************/ |
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/* Encoder Super Struct */ |
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/************************/ |
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typedef struct { |
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stereo_enc_state sStereo; |
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opus_int32 nBitsUsedLBRR; |
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opus_int32 nBitsExceeded; |
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opus_int nChannelsAPI; |
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opus_int nChannelsInternal; |
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opus_int nPrevChannelsInternal; |
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opus_int timeSinceSwitchAllowed_ms; |
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opus_int allowBandwidthSwitch; |
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opus_int prev_decode_only_middle; |
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/* This needs to be last so we can skip the second state for mono. */ |
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silk_encoder_state_FLP state_Fxx[ ENCODER_NUM_CHANNELS ]; |
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} silk_encoder; |
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#endif
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