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+/***********************************************************************
+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 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