diff src/opus-1.3/silk/float/structs_FLP.h @ 154:4664ac0c1032

Add Opus sources and macOS builds

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/opus-1.3/silk/float/structs_FLP.h	Wed Jan 23 13:48:08 2019 +0000
@@ -0,0 +1,112 @@
+/***********************************************************************
+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_FLP_H
+#define SILK_STRUCTS_FLP_H
+
+#include "typedef.h"
+#include "main.h"
+#include "structs.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/********************************/
+/* Noise shaping analysis state */
+/********************************/
+typedef struct {
+    opus_int8                   LastGainIndex;
+    silk_float                  HarmShapeGain_smth;
+    silk_float                  Tilt_smth;
+} silk_shape_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 */
+
+    /* Buffer for find pitch and noise shape analysis */
+    silk_float                  x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];/* Buffer for find pitch and noise shape analysis */
+    silk_float                  LTPCorr;                            /* Normalized correlation from pitch lag estimator */
+} silk_encoder_state_FLP;
+
+/************************/
+/* Encoder control FLP  */
+/************************/
+typedef struct {
+    /* Prediction and coding parameters */
+    silk_float                  Gains[ MAX_NB_SUBFR ];
+    silk_float                  PredCoef[ 2 ][ MAX_LPC_ORDER ];     /* holds interpolated and final coefficients */
+    silk_float                  LTPCoef[LTP_ORDER * MAX_NB_SUBFR];
+    silk_float                  LTP_scale;
+    opus_int                    pitchL[ MAX_NB_SUBFR ];
+
+    /* Noise shaping parameters */
+    silk_float                  AR[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
+    silk_float                  LF_MA_shp[     MAX_NB_SUBFR ];
+    silk_float                  LF_AR_shp[     MAX_NB_SUBFR ];
+    silk_float                  Tilt[          MAX_NB_SUBFR ];
+    silk_float                  HarmShapeGain[ MAX_NB_SUBFR ];
+    silk_float                  Lambda;
+    silk_float                  input_quality;
+    silk_float                  coding_quality;
+
+    /* Measures */
+    silk_float                  predGain;
+    silk_float                  LTPredCodGain;
+    silk_float                  ResNrg[ MAX_NB_SUBFR ];             /* Residual energy per subframe */
+
+    /* Parameters for CBR mode */
+    opus_int32                  GainsUnq_Q16[ MAX_NB_SUBFR ];
+    opus_int8                   lastGainIndexPrev;
+} silk_encoder_control_FLP;
+
+/************************/
+/* Encoder Super Struct */
+/************************/
+typedef struct {
+    silk_encoder_state_FLP      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