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annotate src/opus-1.3/silk/float/structs_FLP.h @ 79:91c729825bca pa_catalina

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Update build for AUDIO_COMPONENT_FIX
author Chris Cannam
date Wed, 30 Oct 2019 12:40:34 +0000
parents 7aeed7906520
children
rev   line source
Chris@69 1 /***********************************************************************
Chris@69 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
Chris@69 3 Redistribution and use in source and binary forms, with or without
Chris@69 4 modification, are permitted provided that the following conditions
Chris@69 5 are met:
Chris@69 6 - Redistributions of source code must retain the above copyright notice,
Chris@69 7 this list of conditions and the following disclaimer.
Chris@69 8 - Redistributions in binary form must reproduce the above copyright
Chris@69 9 notice, this list of conditions and the following disclaimer in the
Chris@69 10 documentation and/or other materials provided with the distribution.
Chris@69 11 - Neither the name of Internet Society, IETF or IETF Trust, nor the
Chris@69 12 names of specific contributors, may be used to endorse or promote
Chris@69 13 products derived from this software without specific prior written
Chris@69 14 permission.
Chris@69 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
Chris@69 16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
Chris@69 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
Chris@69 18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
Chris@69 19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
Chris@69 20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
Chris@69 21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
Chris@69 22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
Chris@69 23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
Chris@69 24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
Chris@69 25 POSSIBILITY OF SUCH DAMAGE.
Chris@69 26 ***********************************************************************/
Chris@69 27
Chris@69 28 #ifndef SILK_STRUCTS_FLP_H
Chris@69 29 #define SILK_STRUCTS_FLP_H
Chris@69 30
Chris@69 31 #include "typedef.h"
Chris@69 32 #include "main.h"
Chris@69 33 #include "structs.h"
Chris@69 34
Chris@69 35 #ifdef __cplusplus
Chris@69 36 extern "C"
Chris@69 37 {
Chris@69 38 #endif
Chris@69 39
Chris@69 40 /********************************/
Chris@69 41 /* Noise shaping analysis state */
Chris@69 42 /********************************/
Chris@69 43 typedef struct {
Chris@69 44 opus_int8 LastGainIndex;
Chris@69 45 silk_float HarmShapeGain_smth;
Chris@69 46 silk_float Tilt_smth;
Chris@69 47 } silk_shape_state_FLP;
Chris@69 48
Chris@69 49 /********************************/
Chris@69 50 /* Encoder state FLP */
Chris@69 51 /********************************/
Chris@69 52 typedef struct {
Chris@69 53 silk_encoder_state sCmn; /* Common struct, shared with fixed-point code */
Chris@69 54 silk_shape_state_FLP sShape; /* Noise shaping state */
Chris@69 55
Chris@69 56 /* Buffer for find pitch and noise shape analysis */
Chris@69 57 silk_float x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];/* Buffer for find pitch and noise shape analysis */
Chris@69 58 silk_float LTPCorr; /* Normalized correlation from pitch lag estimator */
Chris@69 59 } silk_encoder_state_FLP;
Chris@69 60
Chris@69 61 /************************/
Chris@69 62 /* Encoder control FLP */
Chris@69 63 /************************/
Chris@69 64 typedef struct {
Chris@69 65 /* Prediction and coding parameters */
Chris@69 66 silk_float Gains[ MAX_NB_SUBFR ];
Chris@69 67 silk_float PredCoef[ 2 ][ MAX_LPC_ORDER ]; /* holds interpolated and final coefficients */
Chris@69 68 silk_float LTPCoef[LTP_ORDER * MAX_NB_SUBFR];
Chris@69 69 silk_float LTP_scale;
Chris@69 70 opus_int pitchL[ MAX_NB_SUBFR ];
Chris@69 71
Chris@69 72 /* Noise shaping parameters */
Chris@69 73 silk_float AR[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
Chris@69 74 silk_float LF_MA_shp[ MAX_NB_SUBFR ];
Chris@69 75 silk_float LF_AR_shp[ MAX_NB_SUBFR ];
Chris@69 76 silk_float Tilt[ MAX_NB_SUBFR ];
Chris@69 77 silk_float HarmShapeGain[ MAX_NB_SUBFR ];
Chris@69 78 silk_float Lambda;
Chris@69 79 silk_float input_quality;
Chris@69 80 silk_float coding_quality;
Chris@69 81
Chris@69 82 /* Measures */
Chris@69 83 silk_float predGain;
Chris@69 84 silk_float LTPredCodGain;
Chris@69 85 silk_float ResNrg[ MAX_NB_SUBFR ]; /* Residual energy per subframe */
Chris@69 86
Chris@69 87 /* Parameters for CBR mode */
Chris@69 88 opus_int32 GainsUnq_Q16[ MAX_NB_SUBFR ];
Chris@69 89 opus_int8 lastGainIndexPrev;
Chris@69 90 } silk_encoder_control_FLP;
Chris@69 91
Chris@69 92 /************************/
Chris@69 93 /* Encoder Super Struct */
Chris@69 94 /************************/
Chris@69 95 typedef struct {
Chris@69 96 silk_encoder_state_FLP state_Fxx[ ENCODER_NUM_CHANNELS ];
Chris@69 97 stereo_enc_state sStereo;
Chris@69 98 opus_int32 nBitsUsedLBRR;
Chris@69 99 opus_int32 nBitsExceeded;
Chris@69 100 opus_int nChannelsAPI;
Chris@69 101 opus_int nChannelsInternal;
Chris@69 102 opus_int nPrevChannelsInternal;
Chris@69 103 opus_int timeSinceSwitchAllowed_ms;
Chris@69 104 opus_int allowBandwidthSwitch;
Chris@69 105 opus_int prev_decode_only_middle;
Chris@69 106 } silk_encoder;
Chris@69 107
Chris@69 108 #ifdef __cplusplus
Chris@69 109 }
Chris@69 110 #endif
Chris@69 111
Chris@69 112 #endif