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comparison dtx.h @ 0:9008dbc8ca74

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import original C code from GSM 06.06
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 14 Jun 2024 23:27:16 +0000
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-1:000000000000 0:9008dbc8ca74
1 #ifndef __DTX
2 #define __DTX
3
4 #include "typedefs.h"
5
6
7 #define PN_INIT_SEED (Longword)0x1091988L /* initial seed for Comfort
8 * noise pn-generator */
9
10 #define CNINTPER 12 /* inperpolation period of CN
11 * parameters */
12
13 #define SPEECH 1
14 #define CNIFIRSTSID 2
15 #define CNICONT 3
16 #define CNIBFI 4
17
18 #define VALIDSID 11
19 #define INVALIDSID 22
20 #define GOODSPEECH 33
21 #define UNUSABLE 44
22
23 /*________________________________________________________________________
24 | |
25 | Function Prototypes |
26 |________________________________________________________________________|
27 */
28
29 void avgCNHist(Longword pL_R0History[],
30 Longword ppL_CorrHistory[OVERHANG][NP + 1],
31 Longword *pL_AvgdR0,
32 Longword pL_AvgdCorrSeq[]);
33
34 void avgGsHistQntz(Longword pL_GsHistory[], Longword *pL_GsAvgd);
35
36 Shortword swComfortNoise(Shortword swVadFlag,
37 Longword L_UnqntzdR0, Longword *pL_UnqntzdCorr);
38
39 Shortword getPnBits(int iBits, Longword *L_PnSeed);
40
41 Shortword gsQuant(Longword L_GsIn, Shortword swVoicingMode);
42
43 void updateCNHist(Longword L_UnqntzdR0,
44 Longword *pL_UnqntzdCorr,
45 Longword pL_R0Hist[],
46 Longword ppL_CorrHist[OVERHANG][NP + 1]);
47
48 void lpcCorrQntz(Longword pL_CorrelSeq[],
49 Shortword pswFinalRc[],
50 int piVQCodewds[]);
51
52 Longword linInterpSid(Longword L_New, Longword L_Old, Shortword swDtxState);
53
54 Shortword linInterpSidShort(Shortword swNew,
55 Shortword swOld,
56 Shortword swDtxState);
57
58 void rxInterpR0Lpc(Shortword *pswOldKs, Shortword *pswNewKs,
59 Shortword swRxDTXState,
60 Shortword swDecoMode, Shortword swFrameType);
61
62 #endif