FreeCalypso > hg > gsm-codec-lib
comparison libtwamr/ex_ctrl.h @ 364:3f27ca24c620
libtwamr: integrate ex_ctrl.c
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 06 May 2024 02:54:36 +0000 |
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363:0349de7c45b7 | 364:3f27ca24c620 |
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1 /* | |
2 ******************************************************************************** | |
3 * | |
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001 | |
5 * R99 Version 3.3.0 | |
6 * REL-4 Version 4.1.0 | |
7 * | |
8 ******************************************************************************** | |
9 * | |
10 * File : ex_ctrl.h | |
11 * Purpose : Excitation Control module in background noise | |
12 * | |
13 ******************************************************************************** | |
14 */ | |
15 #ifndef ex_ctrl_h | |
16 #define ex_ctrl_h "$Id $" | |
17 | |
18 /* | |
19 ******************************************************************************** | |
20 * INCLUDE FILES | |
21 ******************************************************************************** | |
22 */ | |
23 #include "typedef.h" | |
24 #include "cnst.h" | |
25 | |
26 /* | |
27 ******************************************************************************** | |
28 * LOCAL VARIABLES AND TABLES | |
29 ******************************************************************************** | |
30 */ | |
31 #define L_ENERGYHIST 60 | |
32 | |
33 /* | |
34 ******************************************************************************** | |
35 * DEFINITION OF DATA TYPES | |
36 ******************************************************************************** | |
37 */ | |
38 | |
39 /* | |
40 ******************************************************************************** | |
41 * DECLARATION OF PROTOTYPES | |
42 ******************************************************************************** | |
43 */ | |
44 | |
45 /* | |
46 ************************************************************************** | |
47 * | |
48 * Function : Ex_ctrl | |
49 * Purpose : Charaterice synthesis speech and detect background noise | |
50 * Returns : background noise decision; 0 = bgn, 1 = no bgn | |
51 * | |
52 ************************************************************************** | |
53 */ | |
54 Word16 Ex_ctrl (Word16 excitation[], /*i/o: Current subframe excitation */ | |
55 Word16 excEnergy, /* i : Exc. Energy, sqrt(totEx*totEx)*/ | |
56 Word16 exEnergyHist[], /* i : History of subframe energies */ | |
57 Word16 voicedHangover, /* i : # of fr. after last voiced fr.*/ | |
58 Word16 prevBFI, /* i : Set i previous BFI */ | |
59 Word16 carefulFlag /* i : Restrict dymamic in scaling */ | |
60 ); | |
61 | |
62 #endif |