FreeCalypso > hg > gsm-codec-lib
comparison libtwamr/lsp_lsf.h @ 344:05a46720af0f
libtwamr: integrate d_plsf_3.c
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 19 Apr 2024 01:23:15 +0000 |
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343:3f574255c3aa | 344:05a46720af0f |
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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 : lsp_lsf.h | |
11 * Purpose : Lsp_lsf: Transformation lsp to lsf | |
12 * : Lsf_lsp: Transformation lsf to lsp | |
13 * | |
14 ******************************************************************************** | |
15 */ | |
16 #ifndef lsp_lsf_h | |
17 #define lsp_lsf_h "$Id $" | |
18 | |
19 /* | |
20 ******************************************************************************** | |
21 * INCLUDE FILES | |
22 ******************************************************************************** | |
23 */ | |
24 #include "typedef.h" | |
25 | |
26 /* | |
27 ******************************************************************************** | |
28 * DEFINITION OF DATA TYPES | |
29 ******************************************************************************** | |
30 */ | |
31 | |
32 /* | |
33 ******************************************************************************** | |
34 * DECLARATION OF PROTOTYPES | |
35 ******************************************************************************** | |
36 */ | |
37 void Lsf_lsp ( | |
38 Word16 lsf[], /* (i) : lsf[m] normalized (range: 0.0<=val<=0.5) */ | |
39 Word16 lsp[], /* (o) : lsp[m] (range: -1<=val<1) */ | |
40 Word16 m /* (i) : LPC order */ | |
41 ); | |
42 void Lsp_lsf ( | |
43 Word16 lsp[], /* (i) : lsp[m] (range: -1<=val<1) */ | |
44 Word16 lsf[], /* (o) : lsf[m] normalized (range: 0.0<=val<=0.5) */ | |
45 Word16 m /* (i) : LPC order */ | |
46 ); | |
47 | |
48 #endif |