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media/libopus/silk/float/structs_FLP.h@b8a032363ba2 (annotated)

media/libopus/silk/float/structs_FLP.h

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0 1 /***********************************************************************
michael@0 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
michael@0 3 Redistribution and use in source and binary forms, with or without
michael@0 4 modification, are permitted provided that the following conditions
michael@0 5 are met:
michael@0 6 - Redistributions of source code must retain the above copyright notice,
michael@0 7 this list of conditions and the following disclaimer.
michael@0 8 - Redistributions in binary form must reproduce the above copyright
michael@0 9 notice, this list of conditions and the following disclaimer in the
michael@0 10 documentation and/or other materials provided with the distribution.
michael@0 11 - Neither the name of Internet Society, IETF or IETF Trust, nor the
michael@0 12 names of specific contributors, may be used to endorse or promote
michael@0 13 products derived from this software without specific prior written
michael@0 14 permission.
michael@0 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
michael@0 16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
michael@0 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
michael@0 18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
michael@0 19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
michael@0 20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
michael@0 21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
michael@0 22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
michael@0 23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
michael@0 24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
michael@0 25 POSSIBILITY OF SUCH DAMAGE.
michael@0 26 ***********************************************************************/
michael@0 27
michael@0 28 #ifndef SILK_STRUCTS_FLP_H
michael@0 29 #define SILK_STRUCTS_FLP_H
michael@0 30
michael@0 31 #include "typedef.h"
michael@0 32 #include "main.h"
michael@0 33 #include "structs.h"
michael@0 34
michael@0 35 #ifdef __cplusplus
michael@0 36 extern "C"
michael@0 37 {
michael@0 38 #endif
michael@0 39
michael@0 40 /********************************/
michael@0 41 /* Noise shaping analysis state */
michael@0 42 /********************************/
michael@0 43 typedef struct {
michael@0 44 opus_int8 LastGainIndex;
michael@0 45 silk_float HarmBoost_smth;
michael@0 46 silk_float HarmShapeGain_smth;
michael@0 47 silk_float Tilt_smth;
michael@0 48 } silk_shape_state_FLP;
michael@0 49
michael@0 50 /********************************/
michael@0 51 /* Prefilter state */
michael@0 52 /********************************/
michael@0 53 typedef struct {
michael@0 54 silk_float sLTP_shp[ LTP_BUF_LENGTH ];
michael@0 55 silk_float sAR_shp[ MAX_SHAPE_LPC_ORDER + 1 ];
michael@0 56 opus_int sLTP_shp_buf_idx;
michael@0 57 silk_float sLF_AR_shp;
michael@0 58 silk_float sLF_MA_shp;
michael@0 59 silk_float sHarmHP;
michael@0 60 opus_int32 rand_seed;
michael@0 61 opus_int lagPrev;
michael@0 62 } silk_prefilter_state_FLP;
michael@0 63
michael@0 64 /********************************/
michael@0 65 /* Encoder state FLP */
michael@0 66 /********************************/
michael@0 67 typedef struct {
michael@0 68 silk_encoder_state sCmn; /* Common struct, shared with fixed-point code */
michael@0 69 silk_shape_state_FLP sShape; /* Noise shaping state */
michael@0 70 silk_prefilter_state_FLP sPrefilt; /* Prefilter State */
michael@0 71
michael@0 72 /* Buffer for find pitch and noise shape analysis */
michael@0 73 silk_float x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];/* Buffer for find pitch and noise shape analysis */
michael@0 74 silk_float LTPCorr; /* Normalized correlation from pitch lag estimator */
michael@0 75 } silk_encoder_state_FLP;
michael@0 76
michael@0 77 /************************/
michael@0 78 /* Encoder control FLP */
michael@0 79 /************************/
michael@0 80 typedef struct {
michael@0 81 /* Prediction and coding parameters */
michael@0 82 silk_float Gains[ MAX_NB_SUBFR ];
michael@0 83 silk_float PredCoef[ 2 ][ MAX_LPC_ORDER ]; /* holds interpolated and final coefficients */
michael@0 84 silk_float LTPCoef[LTP_ORDER * MAX_NB_SUBFR];
michael@0 85 silk_float LTP_scale;
michael@0 86 opus_int pitchL[ MAX_NB_SUBFR ];
michael@0 87
michael@0 88 /* Noise shaping parameters */
michael@0 89 silk_float AR1[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
michael@0 90 silk_float AR2[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
michael@0 91 silk_float LF_MA_shp[ MAX_NB_SUBFR ];
michael@0 92 silk_float LF_AR_shp[ MAX_NB_SUBFR ];
michael@0 93 silk_float GainsPre[ MAX_NB_SUBFR ];
michael@0 94 silk_float HarmBoost[ MAX_NB_SUBFR ];
michael@0 95 silk_float Tilt[ MAX_NB_SUBFR ];
michael@0 96 silk_float HarmShapeGain[ MAX_NB_SUBFR ];
michael@0 97 silk_float Lambda;
michael@0 98 silk_float input_quality;
michael@0 99 silk_float coding_quality;
michael@0 100
michael@0 101 /* Measures */
michael@0 102 silk_float sparseness;
michael@0 103 silk_float predGain;
michael@0 104 silk_float LTPredCodGain;
michael@0 105 silk_float ResNrg[ MAX_NB_SUBFR ]; /* Residual energy per subframe */
michael@0 106
michael@0 107 /* Parameters for CBR mode */
michael@0 108 opus_int32 GainsUnq_Q16[ MAX_NB_SUBFR ];
michael@0 109 opus_int8 lastGainIndexPrev;
michael@0 110 } silk_encoder_control_FLP;
michael@0 111
michael@0 112 /************************/
michael@0 113 /* Encoder Super Struct */
michael@0 114 /************************/
michael@0 115 typedef struct {
michael@0 116 silk_encoder_state_FLP state_Fxx[ ENCODER_NUM_CHANNELS ];
michael@0 117 stereo_enc_state sStereo;
michael@0 118 opus_int32 nBitsExceeded;
michael@0 119 opus_int nChannelsAPI;
michael@0 120 opus_int nChannelsInternal;
michael@0 121 opus_int nPrevChannelsInternal;
michael@0 122 opus_int timeSinceSwitchAllowed_ms;
michael@0 123 opus_int allowBandwidthSwitch;
michael@0 124 opus_int prev_decode_only_middle;
michael@0 125 } silk_encoder;
michael@0 126
michael@0 127 #ifdef __cplusplus
michael@0 128 }
michael@0 129 #endif
michael@0 130
michael@0 131 #endif

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