| /*********************************************************************** |
| Copyright (c) 2006-2011, Skype Limited. All rights reserved. |
| Redistribution and use in source and binary forms, with or without |
| modification, 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 Internet Society, IETF or IETF Trust, nor the |
| names of specific contributors, may be used to endorse or promote |
| products derived from this software without specific prior written |
| permission. |
| 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_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 nBitsUsedLBRR; |
| 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 |