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comparison libgsmhr1/dec_func.h @ 595:1e75556ab6c0

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libgsmhr1: integrate helper functions from sp_dec.c
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 04 Dec 2025 04:05:16 +0000
parents libgsmhr1/sp_dec.h@83d46a16db1b
children 5809165fb140
comparison
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594:83d46a16db1b 595:1e75556ab6c0
1 /*
2 * This library-internal header file is derived from sp_dec.h in the
3 * original GSM 06.06 code drop. It contains function prototype
4 * declarations for functions that were originally in sp_dec.c, but
5 * have been moved to dec_func.c in our library. These functions
6 * relate to speech decoding, but are used by both decoder and encoder
7 * engines, following the principle of an analysis-by-synthesis codec.
8 */
9
10 #ifndef dec_func_h
11 #define dec_func_h
12
13 #include "typedefs.h"
14
15 /*_________________________________________________________________________
16 | |
17 | Function Prototypes |
18 |_________________________________________________________________________|
19 */
20
21 void aFlatRcDp(Longword *pL_R, Shortword *pswRc);
22
23 void b_con(Shortword swCodeWord, short siNumBits,
24 Shortword pswVectOut[]);
25
26 void fp_ex(Shortword swOrigLagIn, Shortword pswLTPState[]);
27
28 Shortword g_corr1(Shortword *pswIn, Longword *pL_out);
29
30 Shortword g_corr1s(Shortword pswIn[], Shortword swEngyRShft,
31 Longword *pL_out);
32
33 void getSfrmLpc(short int siSoftInterpolation,
34 Shortword swPrevR0, Shortword swNewR0,
35 Shortword pswPrevFrmKs[],
36 Shortword pswPrevFrmAs[],
37 Shortword pswPrevFrmPFNum[],
38 Shortword pswPrevFrmPFDenom[],
39 Shortword pswNewFrmKs[],
40 Shortword pswNewFrmAs[],
41 Shortword pswNewFrmPFNum[],
42 Shortword pswNewFrmPFDenom[],
43 struct NormSw *psnsSqrtRs,
44 Shortword *ppswSynthAs[],
45 Shortword *ppswPFNumAs[],
46 Shortword *ppswPFDenomAs[]);
47
48 void get_ipjj(Shortword swLagIn,
49 Shortword *pswIp, Shortword *pswJj);
50
51 short int interpolateCheck(Shortword pswRefKs[],
52 Shortword pswRefCoefsA[],
53 Shortword pswOldCoefsA[],
54 Shortword pswNewCoefsA[],
55 Shortword swOldPer,
56 Shortword swNewPer,
57 Shortword swRq,
58 struct NormSw *psnsSqrtRsOut,
59 Shortword pswCoefOutA[]);
60
61 void lpcFir(Shortword pswInput[], Shortword pswCoef[],
62 Shortword pswState[], Shortword pswFiltOut[]);
63
64 void lpcIir(Shortword pswInput[], Shortword pswCoef[],
65 Shortword pswState[], Shortword pswFiltOut[]);
66
67 void lpcIrZsIir(Shortword pswCoef[], Shortword pswFiltOut[]);
68
69 void lpcZiIir(Shortword pswCoef[], Shortword pswState[],
70 Shortword pswFiltOut[]);
71
72 void lpcZsFir(Shortword pswInput[], Shortword pswCoef[],
73 Shortword pswFiltOut[]);
74
75 void lpcZsIir(Shortword pswInput[], Shortword pswCoef[],
76 Shortword pswFiltOut[]);
77
78 void lpcZsIirP(Shortword pswCommonIO[], Shortword pswCoef[]);
79
80 Shortword r0BasedEnergyShft(Shortword swR0Index);
81
82 short rcToADp(Shortword swAscale, Shortword pswRc[],
83 Shortword pswA[]);
84
85 void rcToCorrDpL(Shortword swAshift, Shortword swAscale,
86 Shortword pswRc[], Longword pL_R[]);
87
88 void res_eng(Shortword pswReflecCoefIn[], Shortword swRq,
89 struct NormSw *psnsSqrtRsOut);
90
91 void rs_rr(Shortword pswExcitation[], struct NormSw snsSqrtRs,
92 struct NormSw *snsSqrtRsRr);
93
94 void rs_rrNs(Shortword pswExcitation[], struct NormSw snsSqrtRs,
95 struct NormSw *snsSqrtRsRr);
96
97 Shortword scaleExcite(Shortword pswVect[],
98 Shortword swErrTerm, struct NormSw snsRS,
99 Shortword pswScldVect[]);
100
101 Shortword sqroot(Longword L_SqrtIn);
102
103 void v_con(Shortword pswBVects[], Shortword pswOutVect[],
104 Shortword pswBitArray[], short int siNumBVctrs);
105
106 #endif