Reformatting changes with an update to the MSVC project files
[opus.git] / silk / float / structs_FLP.h
1 /***********************************************************************
2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
3 Redistribution and use in source and binary forms, with or without
4 modification, (subject to the limitations in the disclaimer below)
5 are permitted provided that the following conditions are met:
6 - Redistributions of source code must retain the above copyright notice,
7 this list of conditions and the following disclaimer.
8 - Redistributions in binary form must reproduce the above copyright
9 notice, this list of conditions and the following disclaimer in the
10 documentation and/or other materials provided with the distribution.
11 - Neither the name of Skype Limited, nor the names of specific
12 contributors, may be used to endorse or promote products derived from
13 this software without specific prior written permission.
14 NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
15 BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
16 CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
17 BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
18 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
22 USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
23 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 ***********************************************************************/
27
28 #ifndef SILK_STRUCTS_FLP_H
29 #define SILK_STRUCTS_FLP_H
30
31 #include "typedef.h"
32 #include "main.h"
33 #include "structs.h"
34
35 #ifdef __cplusplus
36 extern "C"
37 {
38 #endif
39
40 /********************************/
41 /* Noise shaping analysis state */
42 /********************************/
43 typedef struct {
44     opus_int8                   LastGainIndex;
45     silk_float                  HarmBoost_smth;
46     silk_float                  HarmShapeGain_smth;
47     silk_float                  Tilt_smth;
48 } silk_shape_state_FLP;
49
50 /********************************/
51 /* Prefilter state              */
52 /********************************/
53 typedef struct {
54     silk_float                  sLTP_shp[ LTP_BUF_LENGTH ];
55     silk_float                  sAR_shp[ MAX_SHAPE_LPC_ORDER + 1 ];
56     opus_int                    sLTP_shp_buf_idx;
57     silk_float                  sLF_AR_shp;
58     silk_float                  sLF_MA_shp;
59     silk_float                  sHarmHP;
60     opus_int32                  rand_seed;
61     opus_int                    lagPrev;
62 } silk_prefilter_state_FLP;
63
64 /********************************/
65 /* Encoder state FLP            */
66 /********************************/
67 typedef struct {
68     silk_encoder_state          sCmn;                               /* Common struct, shared with fixed-point code */
69     silk_shape_state_FLP        sShape;                             /* Noise shaping state */
70     silk_prefilter_state_FLP    sPrefilt;                           /* Prefilter State */
71
72     /* Buffer for find pitch and noise shape analysis */
73     silk_float                  x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];/* Buffer for find pitch and noise shape analysis */
74     silk_float                  LTPCorr;                            /* Normalized correlation from pitch lag estimator */
75
76     /* Parameters for LTP scaling control */
77     silk_float                  prevLTPredCodGain;
78     silk_float                  HPLTPredCodGain;
79 } silk_encoder_state_FLP;
80
81 /************************/
82 /* Encoder control FLP  */
83 /************************/
84 typedef struct {
85     /* Prediction and coding parameters */
86     silk_float                  Gains[ MAX_NB_SUBFR ];
87     silk_float                  PredCoef[ 2 ][ MAX_LPC_ORDER ];     /* holds interpolated and final coefficients */
88     silk_float                  LTPCoef[LTP_ORDER * MAX_NB_SUBFR];
89     silk_float                  LTP_scale;
90     opus_int                    pitchL[ MAX_NB_SUBFR ];
91
92     /* Noise shaping parameters */
93     silk_float                  AR1[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
94     silk_float                  AR2[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
95     silk_float                  LF_MA_shp[     MAX_NB_SUBFR ];
96     silk_float                  LF_AR_shp[     MAX_NB_SUBFR ];
97     silk_float                  GainsPre[      MAX_NB_SUBFR ];
98     silk_float                  HarmBoost[     MAX_NB_SUBFR ];
99     silk_float                  Tilt[          MAX_NB_SUBFR ];
100     silk_float                  HarmShapeGain[ MAX_NB_SUBFR ];
101     silk_float                  Lambda;
102     silk_float                  input_quality;
103     silk_float                  coding_quality;
104
105     /* Measures */
106     silk_float                  sparseness;
107     silk_float                  predGain;
108     silk_float                  LTPredCodGain;
109     silk_float                  ResNrg[ MAX_NB_SUBFR ];             /* Residual energy per subframe */
110
111     /* Parameters for CBR mode */
112     opus_int32                  GainsUnq_Q16[ MAX_NB_SUBFR ];
113     opus_int8                   lastGainIndexPrev;
114 } silk_encoder_control_FLP;
115
116 /************************/
117 /* Encoder Super Struct */
118 /************************/
119 typedef struct {
120     silk_encoder_state_FLP      state_Fxx[ ENCODER_NUM_CHANNELS ];
121     stereo_enc_state            sStereo;
122     opus_int32                  nBitsExceeded;
123     opus_int                    nChannelsAPI;
124     opus_int                    nChannelsInternal;
125     opus_int                    nPrevChannelsInternal;
126     opus_int                    timeSinceSwitchAllowed_ms;
127     opus_int                    allowBandwidthSwitch;
128     opus_int                    prev_decode_only_middle;
129 } silk_encoder;
130
131 #ifdef __cplusplus
132 }
133 #endif
134
135 #endif