Smart Remote 3 nRF52 v1.2
structs_FIX.h
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27 
28 #ifndef SILK_STRUCTS_FIX_H
29 #define SILK_STRUCTS_FIX_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  opus_int32 HarmBoost_smth_Q16;
46  opus_int32 HarmShapeGain_smth_Q16;
47  opus_int32 Tilt_smth_Q16;
48 } silk_shape_state_FIX;
49 
50 /********************************/
51 /* Encoder state FIX */
52 /********************************/
53 typedef struct {
54  silk_encoder_state sCmn; /* Common struct, shared with floating-point code */
55  silk_shape_state_FIX sShape; /* Shape state */
56 
57  /* Buffer for find pitch and noise shape analysis */
58  silk_DWORD_ALIGN opus_int16 x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];/* Buffer for find pitch and noise shape analysis */
59  opus_int LTPCorr_Q15; /* Normalized correlation from pitch lag estimator */
60  opus_int32 resNrgSmth;
61 } silk_encoder_state_FIX;
62 
63 /************************/
64 /* Encoder control FIX */
65 /************************/
66 typedef struct {
67  /* Prediction and coding parameters */
68  opus_int32 Gains_Q16[ MAX_NB_SUBFR ];
69  silk_DWORD_ALIGN opus_int16 PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ];
70  opus_int16 LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ];
71  opus_int LTP_scale_Q14;
72  opus_int pitchL[ MAX_NB_SUBFR ];
73 
74  /* Noise shaping parameters */
75  /* Testing */
76  silk_DWORD_ALIGN opus_int16 AR_Q13[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
77  opus_int32 LF_shp_Q14[ MAX_NB_SUBFR ]; /* Packs two int16 coefficients per int32 value */
78  opus_int Tilt_Q14[ MAX_NB_SUBFR ];
79  opus_int HarmShapeGain_Q14[ MAX_NB_SUBFR ];
80  opus_int Lambda_Q10;
81  opus_int input_quality_Q14;
82  opus_int coding_quality_Q14;
83 
84  /* measures */
85  opus_int32 predGain_Q16;
86  opus_int LTPredCodGain_Q7;
87  opus_int32 ResNrg[ MAX_NB_SUBFR ]; /* Residual energy per subframe */
88  opus_int ResNrgQ[ MAX_NB_SUBFR ]; /* Q domain for the residual energy > 0 */
89 
90  /* Parameters for CBR mode */
91  opus_int32 GainsUnq_Q16[ MAX_NB_SUBFR ];
92  opus_int8 lastGainIndexPrev;
93 } silk_encoder_control_FIX;
94 
95 /************************/
96 /* Encoder Super Struct */
97 /************************/
98 typedef struct {
99  silk_encoder_state_FIX state_Fxx[ ENCODER_NUM_CHANNELS ];
100  stereo_enc_state sStereo;
101  opus_int32 nBitsUsedLBRR;
102  opus_int32 nBitsExceeded;
103  opus_int nChannelsAPI;
104  opus_int nChannelsInternal;
105  opus_int nPrevChannelsInternal;
106  opus_int timeSinceSwitchAllowed_ms;
107  opus_int allowBandwidthSwitch;
108  opus_int prev_decode_only_middle;
109 } silk_encoder;
110 
111 
112 #ifdef __cplusplus
113 }
114 #endif
115 
116 #endif
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