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comparison libtwamr/d_plsf.c @ 343:3f574255c3aa

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libtwamr: integrate d_plsf.c
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 19 Apr 2024 01:08:39 +0000
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342:e42075184628 343:3f574255c3aa
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 : d_plsf.c
11 * Purpose : common part (init, exit, reset) of LSF decoder
12 * module (rest in d_plsf_3.c and d_plsf_5.c)
13 *
14 *****************************************************************************
15 */
16
17
18 /*
19 *****************************************************************************
20 * MODULE INCLUDE FILE AND VERSION ID
21 *****************************************************************************
22 */
23 #include "namespace.h"
24 #include "d_plsf.h"
25
26 /*
27 *****************************************************************************
28 * INCLUDE FILES
29 *****************************************************************************
30 */
31 #include "typedef.h"
32 #include "basic_op.h"
33 #include "no_count.h"
34 #include "cnst.h"
35 #include "memops.h"
36 #include "q_plsf5_tab.h"
37
38 /*
39 *--------------------------------------------------*
40 * Constants (defined in cnst.h) *
41 *--------------------------------------------------*
42 * M : LPC order
43 *--------------------------------------------------*
44 */
45
46 /*
47 *****************************************************************************
48 * PUBLIC PROGRAM CODE
49 *****************************************************************************
50 */
51
52 /*
53 **************************************************************************
54 *
55 * Function : D_plsf_reset
56 * Purpose : Resets state memory
57 *
58 **************************************************************************
59 */
60 void D_plsf_reset (D_plsfState *state)
61 {
62 Word16 i;
63
64 for (i = 0; i < M; i++){
65 state->past_r_q[i] = 0; /* Past quantized prediction error */
66 }
67
68 /* Past dequantized lsfs */
69 Copy(mean_lsf, &state->past_lsf_q[0], M);
70 }