annotate src/opus-1.3/silk/float/structs_FLP.h @ 169:223a55898ab9 tip default

Add null config files
author Chris Cannam <cannam@all-day-breakfast.com>
date Mon, 02 Mar 2020 14:03:47 +0000
parents 4664ac0c1032
children
rev   line source
cannam@154 1 /***********************************************************************
cannam@154 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
cannam@154 3 Redistribution and use in source and binary forms, with or without
cannam@154 4 modification, are permitted provided that the following conditions
cannam@154 5 are met:
cannam@154 6 - Redistributions of source code must retain the above copyright notice,
cannam@154 7 this list of conditions and the following disclaimer.
cannam@154 8 - Redistributions in binary form must reproduce the above copyright
cannam@154 9 notice, this list of conditions and the following disclaimer in the
cannam@154 10 documentation and/or other materials provided with the distribution.
cannam@154 11 - Neither the name of Internet Society, IETF or IETF Trust, nor the
cannam@154 12 names of specific contributors, may be used to endorse or promote
cannam@154 13 products derived from this software without specific prior written
cannam@154 14 permission.
cannam@154 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
cannam@154 16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
cannam@154 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
cannam@154 18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
cannam@154 19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
cannam@154 20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
cannam@154 21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
cannam@154 22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
cannam@154 23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
cannam@154 24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
cannam@154 25 POSSIBILITY OF SUCH DAMAGE.
cannam@154 26 ***********************************************************************/
cannam@154 27
cannam@154 28 #ifndef SILK_STRUCTS_FLP_H
cannam@154 29 #define SILK_STRUCTS_FLP_H
cannam@154 30
cannam@154 31 #include "typedef.h"
cannam@154 32 #include "main.h"
cannam@154 33 #include "structs.h"
cannam@154 34
cannam@154 35 #ifdef __cplusplus
cannam@154 36 extern "C"
cannam@154 37 {
cannam@154 38 #endif
cannam@154 39
cannam@154 40 /********************************/
cannam@154 41 /* Noise shaping analysis state */
cannam@154 42 /********************************/
cannam@154 43 typedef struct {
cannam@154 44 opus_int8 LastGainIndex;
cannam@154 45 silk_float HarmShapeGain_smth;
cannam@154 46 silk_float Tilt_smth;
cannam@154 47 } silk_shape_state_FLP;
cannam@154 48
cannam@154 49 /********************************/
cannam@154 50 /* Encoder state FLP */
cannam@154 51 /********************************/
cannam@154 52 typedef struct {
cannam@154 53 silk_encoder_state sCmn; /* Common struct, shared with fixed-point code */
cannam@154 54 silk_shape_state_FLP sShape; /* Noise shaping state */
cannam@154 55
cannam@154 56 /* Buffer for find pitch and noise shape analysis */
cannam@154 57 silk_float x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];/* Buffer for find pitch and noise shape analysis */
cannam@154 58 silk_float LTPCorr; /* Normalized correlation from pitch lag estimator */
cannam@154 59 } silk_encoder_state_FLP;
cannam@154 60
cannam@154 61 /************************/
cannam@154 62 /* Encoder control FLP */
cannam@154 63 /************************/
cannam@154 64 typedef struct {
cannam@154 65 /* Prediction and coding parameters */
cannam@154 66 silk_float Gains[ MAX_NB_SUBFR ];
cannam@154 67 silk_float PredCoef[ 2 ][ MAX_LPC_ORDER ]; /* holds interpolated and final coefficients */
cannam@154 68 silk_float LTPCoef[LTP_ORDER * MAX_NB_SUBFR];
cannam@154 69 silk_float LTP_scale;
cannam@154 70 opus_int pitchL[ MAX_NB_SUBFR ];
cannam@154 71
cannam@154 72 /* Noise shaping parameters */
cannam@154 73 silk_float AR[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
cannam@154 74 silk_float LF_MA_shp[ MAX_NB_SUBFR ];
cannam@154 75 silk_float LF_AR_shp[ MAX_NB_SUBFR ];
cannam@154 76 silk_float Tilt[ MAX_NB_SUBFR ];
cannam@154 77 silk_float HarmShapeGain[ MAX_NB_SUBFR ];
cannam@154 78 silk_float Lambda;
cannam@154 79 silk_float input_quality;
cannam@154 80 silk_float coding_quality;
cannam@154 81
cannam@154 82 /* Measures */
cannam@154 83 silk_float predGain;
cannam@154 84 silk_float LTPredCodGain;
cannam@154 85 silk_float ResNrg[ MAX_NB_SUBFR ]; /* Residual energy per subframe */
cannam@154 86
cannam@154 87 /* Parameters for CBR mode */
cannam@154 88 opus_int32 GainsUnq_Q16[ MAX_NB_SUBFR ];
cannam@154 89 opus_int8 lastGainIndexPrev;
cannam@154 90 } silk_encoder_control_FLP;
cannam@154 91
cannam@154 92 /************************/
cannam@154 93 /* Encoder Super Struct */
cannam@154 94 /************************/
cannam@154 95 typedef struct {
cannam@154 96 silk_encoder_state_FLP state_Fxx[ ENCODER_NUM_CHANNELS ];
cannam@154 97 stereo_enc_state sStereo;
cannam@154 98 opus_int32 nBitsUsedLBRR;
cannam@154 99 opus_int32 nBitsExceeded;
cannam@154 100 opus_int nChannelsAPI;
cannam@154 101 opus_int nChannelsInternal;
cannam@154 102 opus_int nPrevChannelsInternal;
cannam@154 103 opus_int timeSinceSwitchAllowed_ms;
cannam@154 104 opus_int allowBandwidthSwitch;
cannam@154 105 opus_int prev_decode_only_middle;
cannam@154 106 } silk_encoder;
cannam@154 107
cannam@154 108 #ifdef __cplusplus
cannam@154 109 }
cannam@154 110 #endif
cannam@154 111
cannam@154 112 #endif