FreeCalypso > hg > gsm-codec-lib

annotate libgsmhr1/dec_func.h @ 596:8e4ecdfadf5a

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libgsmhr1: capture decoder state
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 04 Dec 2025 06:25:54 +0000
parents 1e75556ab6c0
children 5809165fb140
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595
1e75556ab6c0 libgsmhr1: integrate helper functions from sp_dec.c
Mychaela Falconia <falcon@freecalypso.org>
parents: 594
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1 /*
1e75556ab6c0 libgsmhr1: integrate helper functions from sp_dec.c
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2 * This library-internal header file is derived from sp_dec.h in the
1e75556ab6c0 libgsmhr1: integrate helper functions from sp_dec.c
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3 * original GSM 06.06 code drop. It contains function prototype
1e75556ab6c0 libgsmhr1: integrate helper functions from sp_dec.c
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4 * declarations for functions that were originally in sp_dec.c, but
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5 * have been moved to dec_func.c in our library. These functions
1e75556ab6c0 libgsmhr1: integrate helper functions from sp_dec.c
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6 * relate to speech decoding, but are used by both decoder and encoder
1e75556ab6c0 libgsmhr1: integrate helper functions from sp_dec.c
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7 * engines, following the principle of an analysis-by-synthesis codec.
1e75556ab6c0 libgsmhr1: integrate helper functions from sp_dec.c
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8 */
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9
1e75556ab6c0 libgsmhr1: integrate helper functions from sp_dec.c
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10 #ifndef dec_func_h
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11 #define dec_func_h
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12
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13 #include "typedefs.h"
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14
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15 /*_________________________________________________________________________
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16 | |
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17 | Function Prototypes |
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18 |_________________________________________________________________________|
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19 */
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20
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21 void aFlatRcDp(Longword *pL_R, Shortword *pswRc);
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22
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23 void b_con(Shortword swCodeWord, short siNumBits,
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24 Shortword pswVectOut[]);
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25
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26 void fp_ex(Shortword swOrigLagIn, Shortword pswLTPState[]);
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27
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28 Shortword g_corr1(Shortword *pswIn, Longword *pL_out);
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29
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30 Shortword g_corr1s(Shortword pswIn[], Shortword swEngyRShft,
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31 Longword *pL_out);
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32
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33 void getSfrmLpc(short int siSoftInterpolation,
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34 Shortword swPrevR0, Shortword swNewR0,
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35 Shortword pswPrevFrmKs[],
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36 Shortword pswPrevFrmAs[],
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37 Shortword pswPrevFrmPFNum[],
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38 Shortword pswPrevFrmPFDenom[],
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39 Shortword pswNewFrmKs[],
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40 Shortword pswNewFrmAs[],
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41 Shortword pswNewFrmPFNum[],
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42 Shortword pswNewFrmPFDenom[],
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43 struct NormSw *psnsSqrtRs,
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44 Shortword *ppswSynthAs[],
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45 Shortword *ppswPFNumAs[],
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46 Shortword *ppswPFDenomAs[]);
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47
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48 void get_ipjj(Shortword swLagIn,
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49 Shortword *pswIp, Shortword *pswJj);
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50
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51 short int interpolateCheck(Shortword pswRefKs[],
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52 Shortword pswRefCoefsA[],
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53 Shortword pswOldCoefsA[],
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54 Shortword pswNewCoefsA[],
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55 Shortword swOldPer,
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56 Shortword swNewPer,
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57 Shortword swRq,
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58 struct NormSw *psnsSqrtRsOut,
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59 Shortword pswCoefOutA[]);
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60
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61 void lpcFir(Shortword pswInput[], Shortword pswCoef[],
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62 Shortword pswState[], Shortword pswFiltOut[]);
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63
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64 void lpcIir(Shortword pswInput[], Shortword pswCoef[],
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65 Shortword pswState[], Shortword pswFiltOut[]);
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66
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67 void lpcIrZsIir(Shortword pswCoef[], Shortword pswFiltOut[]);
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68
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69 void lpcZiIir(Shortword pswCoef[], Shortword pswState[],
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70 Shortword pswFiltOut[]);
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71
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72 void lpcZsFir(Shortword pswInput[], Shortword pswCoef[],
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73 Shortword pswFiltOut[]);
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74
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75 void lpcZsIir(Shortword pswInput[], Shortword pswCoef[],
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76 Shortword pswFiltOut[]);
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77
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78 void lpcZsIirP(Shortword pswCommonIO[], Shortword pswCoef[]);
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79
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80 Shortword r0BasedEnergyShft(Shortword swR0Index);
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81
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82 short rcToADp(Shortword swAscale, Shortword pswRc[],
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83 Shortword pswA[]);
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84
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85 void rcToCorrDpL(Shortword swAshift, Shortword swAscale,
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86 Shortword pswRc[], Longword pL_R[]);
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87
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88 void res_eng(Shortword pswReflecCoefIn[], Shortword swRq,
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89 struct NormSw *psnsSqrtRsOut);
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90
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91 void rs_rr(Shortword pswExcitation[], struct NormSw snsSqrtRs,
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92 struct NormSw *snsSqrtRsRr);
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93
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94 void rs_rrNs(Shortword pswExcitation[], struct NormSw snsSqrtRs,
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95 struct NormSw *snsSqrtRsRr);
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96
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97 Shortword scaleExcite(Shortword pswVect[],
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98 Shortword swErrTerm, struct NormSw snsRS,
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99 Shortword pswScldVect[]);
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100
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101 Shortword sqroot(Longword L_SqrtIn);
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102
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103 void v_con(Shortword pswBVects[], Shortword pswOutVect[],
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104 Shortword pswBitArray[], short int siNumBVctrs);
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105
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106 #endif