annotate libtwamr/cl_ltp.h @ 430:edbbbf1c4ab1

implement twamr-tseq-dec test program
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 07 May 2024 23:35:41 +0000
parents 85e9768d497f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
406
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 ********************************************************************************
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * R99 Version 3.3.0
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * REL-4 Version 4.1.0
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 ********************************************************************************
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 *
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * File : cl_ltp.h
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 * Purpose : Closed-loop fractional pitch search
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 *
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 ********************************************************************************
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 #ifndef cl_ltp_h
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 #define cl_ltp_h "$Id $"
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 /*
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 ********************************************************************************
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 * INCLUDE FILES
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 ********************************************************************************
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 #include "tw_amr.h"
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 #include "typedef.h"
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 #include "pitch_fr.h"
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 #include "ton_stab.h"
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 /*
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 ********************************************************************************
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 * LOCAL VARIABLES AND TABLES
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 ********************************************************************************
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 /*
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 ********************************************************************************
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 * DEFINITION OF DATA TYPES
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 ********************************************************************************
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 /* state variable */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 typedef struct {
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 Pitch_frState pitchSt;
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 } clLtpState;
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 /*
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 ********************************************************************************
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 * DECLARATION OF PROTOTYPES
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 ********************************************************************************
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 void cl_ltp_reset (clLtpState *st);
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 /* reset of pre processing state (i.e. set state memory to zero)
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 returns 0 on success
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 int cl_ltp(
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 clLtpState *clSt, /* i/o : State struct */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 tonStabState *tonSt, /* i/o : State struct */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 enum Mode mode, /* i : coder mode */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 Word16 frameOffset, /* i : Offset to subframe */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 Word16 T_op[], /* i : Open loop pitch lags */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 Word16 *h1, /* i : Impulse response vector Q12 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 Word16 *exc, /* i/o : Excitation vector Q0 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 Word16 res2[], /* i/o : Long term prediction residual Q0 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 Word16 xn[], /* i : Target vector for pitch search Q0 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 Word16 lsp_flag, /* i : LSP resonance flag */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 Word16 xn2[], /* o : Target vector for codebook search Q0 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 Word16 y1[], /* o : Filtered adaptive excitation Q0 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 Word16 *T0, /* o : Pitch delay (integer part) */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70 Word16 *T0_frac, /* o : Pitch delay (fractional part) */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71 Word16 *gain_pit, /* o : Pitch gain Q14 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72 Word16 g_coeff[], /* o : Correlations between xn, y1, & y2 */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73 Word16 **anap, /* o : Analysis parameters */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74 Word16 *gp_limit /* o : pitch gain limit */
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
75 );
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76
85e9768d497f libtwamr: integrate cl_ltp.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77 #endif