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comparison libtwamr/q_plsf.h @ 371:4a8cabac281e

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libtwamr: integrate q_plsf.c
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 06 May 2024 03:45:04 +0000
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370:8861f41e4507 371:4a8cabac281e
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 : q_plsf.h
11 * Purpose : common include file for LSF vector/matrix quanti-
12 * sation modules (q_plsf_3.c/q_plsf_5.c)
13 *
14 ********************************************************************************
15 */
16 #ifndef q_plsf_h
17 #define q_plsf_h "$Id $"
18
19 /*
20 ********************************************************************************
21 * INCLUDE FILES
22 ********************************************************************************
23 */
24 #include "tw_amr.h"
25 #include "typedef.h"
26 #include "cnst.h"
27 /*
28 ********************************************************************************
29 * DEFINITION OF DATA TYPES
30 ********************************************************************************
31 */
32 typedef struct {
33 Word16 past_rq[M]; /* Past quantized prediction error, Q15 */
34 } Q_plsfState;
35
36 /*
37 ********************************************************************************
38 * DECLARATION OF PROTOTYPES
39 ********************************************************************************
40 */
41
42 void Q_plsf_reset (Q_plsfState *st);
43 /* reset of state (i.e. set state memory to zero)
44 returns 0 on success
45 */
46
47 void Q_plsf_3(
48 Q_plsfState *st, /* i/o: state struct */
49 enum Mode mode, /* i : coder mode */
50 Word16 *lsp1, /* i : 1st LSP vector Q15 */
51 Word16 *lsp1_q, /* o : quantized 1st LSP vector Q15 */
52 Word16 *indice, /* o : quantization indices of 3 vectors Q0 */
53 Word16 *pred_init_i /* o : init index for MA prediction in DTX mode */
54 );
55
56 void Q_plsf_5 (
57 Q_plsfState *st,
58 Word16 *lsp1, /* i : 1st LSP vector, Q15 */
59 Word16 *lsp2, /* i : 2nd LSP vector, Q15 */
60 Word16 *lsp1_q, /* o : quantized 1st LSP vector, Q15 */
61 Word16 *lsp2_q, /* o : quantized 2nd LSP vector, Q15 */
62 Word16 *indice /* o : quantization indices of 5 matrices, Q0 */
63 );
64
65 #endif