FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/inter_36.h @ 453:19f1aa01ea10

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
new approach to config & build for ThemWi software
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 10 May 2024 05:45:46 +0000
parents 838ed426bb76
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
383
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 ********************************************************************************
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * R99 Version 3.3.0
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * REL-4 Version 4.1.0
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 ********************************************************************************
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 *
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * File : inter_36.h
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 * Purpose : Interpolating the normalized correlation
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 * : with 1/3 or 1/6 resolution.
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 *
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 ********************************************************************************
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 */
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 #ifndef inter_36_h
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 #define inter_36_h "$Id $"
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 /*
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 ********************************************************************************
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 * INCLUDE FILES
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 ********************************************************************************
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 */
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 #include "typedef.h"
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 /*
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 ********************************************************************************
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 * DEFINITION OF DATA TYPES
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 ********************************************************************************
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 */
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 /*
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 ********************************************************************************
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 * DECLARATION OF PROTOTYPES
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 ********************************************************************************
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 */
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 Word16 Interpol_3or6 ( /* (o) : interpolated value */
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 Word16 *x, /* (i) : input vector */
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 Word16 frac, /* (i) : fraction (-2..2 for 3*, -3..3 for 6*) */
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 Word16 flag3 /* (i) : if set, upsampling rate = 3 (6 otherwise) */
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 );
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42
838ed426bb76 libtwamr: integrate inter_36.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 #endif