FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/cod_amr.h @ 498:65f672c43dc8

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
libgsmhr1/typedefs.h: import original
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 19 Jun 2024 00:49:48 +0000
parents 93d6c6960a46
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
418
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * R99 Version 3.3.0
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * REL-4 Version 4.1.0
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * File : cod_amr.h
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 * Purpose : Main encoder routine operating on a frame basis.
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 #ifndef cod_amr_h
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 #define cod_amr_h "$Id $"
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 /*
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 * INCLUDE FILES
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 #include "tw_amr.h"
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 #include "typedef.h"
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 #include "cnst.h"
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 #include "lpc.h"
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 #include "lsp.h"
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 #include "cl_ltp.h"
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 #include "gain_q.h"
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 #include "p_ol_wgh.h"
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 #include "ton_stab.h"
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 #include "vad.h"
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 #include "dtx_enc.h"
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 /*
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 * DEFINITION OF DATA TYPES
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 /*-----------------------------------------------------------*
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 * Coder constant parameters (defined in "cnst.h") *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 *-----------------------------------------------------------*
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 * L_WINDOW : LPC analysis window size. *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 * L_NEXT : Samples of next frame needed for autocor. *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 * L_FRAME : Frame size. *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 * L_FRAME_BY2 : Half the frame size. *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 * L_SUBFR : Sub-frame size. *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 * M : LPC order. *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 * MP1 : LPC order+1 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 * L_TOTAL7k4 : Total size of speech buffer. *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 * PIT_MIN7k4 : Minimum pitch lag. *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 * PIT_MAX : Maximum pitch lag. *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 * L_INTERPOL : Length of filter for interpolation *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 *-----------------------------------------------------------*/
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 typedef struct {
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 /* Speech vector */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 Word16 old_speech[L_TOTAL];
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 Word16 *speech, *p_window, *p_window_12k2;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 Word16 *new_speech; /* Global variable */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 /* Weight speech vector */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 Word16 old_wsp[L_FRAME + PIT_MAX];
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 Word16 *wsp;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 /* OL LTP states */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 Word16 old_lags[5];
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 Word16 ol_gain_flg[2];
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 /* Excitation vector */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70 Word16 old_exc[L_FRAME + PIT_MAX + L_INTERPOL];
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71 Word16 *exc;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73 /* Zero vector */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74 Word16 ai_zero[L_SUBFR + MP1];
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
75 Word16 *zero;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77 /* Impulse response vector */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
78 Word16 *h1;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
79 Word16 hvec[L_SUBFR * 2];
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
80
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
81 /* Substates */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
82 lpcState lpcSt;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
83 lspState lspSt;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
84 clLtpState clLtpSt;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
85 gainQuantState gainQuantSt;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
86 pitchOLWghtState pitchOLWghtSt;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
87 tonStabState tonStabSt;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
88 vadState vadSt;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
89 Flag dtx;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
90 dtx_encState dtx_encSt;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
91
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
92 /* Filter's memory */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
93 Word16 mem_syn[M], mem_w0[M], mem_w[M];
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
94 Word16 mem_err[M + L_SUBFR], *error;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
95
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
96 Word16 sharp;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
97 } cod_amrState;
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
98
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
99 /*
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
100 ********************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
101 * DECLARATION OF PROTOTYPES
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
102 ********************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
103 */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
104
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
105 /*
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
106 **************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
107 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
108 * Function : cod_amr_reset
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
109 * Purpose : Resets state memory
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
110 * Returns : 0 on success
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
111 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
112 **************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
113 */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
114 void cod_amr_reset (cod_amrState *st, Flag dtx, Flag use_vad2);
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
115
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
116 /***************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
117 * FUNCTION: cod_amr_first
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
118 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 * PURPOSE: Copes with look-ahead.
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 * INPUTS:
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122 * No input argument are passed to this function. However, before
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 * calling this function, 40 new speech data should be copied to the
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 * vector new_speech[]. This is a global pointer which is declared in
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 * this file (it points to the end of speech buffer minus 200).
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 ***************************************************************************/
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 int cod_amr_first(cod_amrState *st, /* i/o : State struct */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 Word16 new_speech[] /* i : speech input (L_FRAME) */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 );
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 /***************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 * FUNCTION: cod_amr
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 * PURPOSE: Main encoder routine.
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 * DESCRIPTION: This function is called every 20 ms speech frame,
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 * operating on the newly read 160 speech samples. It performs the
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 * principle encoding functions to produce the set of encoded parameters
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 * which include the LSP, adaptive codebook, and fixed codebook
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 * quantization indices (addresses and gains).
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 * INPUTS:
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 * No input argument are passed to this function. However, before
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 * calling this function, 160 new speech data should be copied to the
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 * vector new_speech[]. This is a global pointer which is declared in
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 * this file (it points to the end of speech buffer minus 160).
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 * OUTPUTS:
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 * ana[]: vector of analysis parameters.
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 * synth[]: Local synthesis speech (for debugging purposes)
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 *
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 ***************************************************************************/
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 int cod_amr(cod_amrState *st, /* i/o : State struct */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 enum Mode mode, /* i : AMR mode */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 Word16 new_speech[], /* i : speech input (L_FRAME) */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 Word16 ana[], /* o : Analysis parameters */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 enum Mode *usedMode, /* o : used mode */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 Word16 synth[] /* o : Local synthesis */
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 );
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164
93d6c6960a46 libtwamr: integrate cod_amr.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 #endif