annotate libtwamr/d2_11pf.h @ 337:190c4c9a3693

libtwamr: integrate pow2.c
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 18 Apr 2024 23:06:59 +0000
parents c75327562b5e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
331
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 ********************************************************************************
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * R99 Version 3.3.0
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * REL-4 Version 4.1.0
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 ********************************************************************************
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 *
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * File : d2_11pf.h
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 * Purpose : Algebraic codebook decoder
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 *
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 ********************************************************************************
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 */
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 #ifndef d2_11pf_h
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 #define d2_11pf_h "$Id $"
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 /*
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 ********************************************************************************
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 * INCLUDE FILES
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 ********************************************************************************
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 */
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 #include "typedef.h"
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 /*
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 ********************************************************************************
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 * LOCAL VARIABLES AND TABLES
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 ********************************************************************************
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 */
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 /*
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 ********************************************************************************
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 * DEFINITION OF DATA TYPES
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 ********************************************************************************
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 */
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 /*
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 ********************************************************************************
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 * DECLARATION OF PROTOTYPES
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 ********************************************************************************
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 */
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 /*************************************************************************
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 *
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 * FUNCTION: decode_2i40_11bits (decod_ACELP())
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 *
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 * PURPOSE: Algebraic codebook decoder for 2 pulses coded with 11 bits
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 *
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 *************************************************************************/
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 void decode_2i40_11bits(
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 Word16 sign, /* i : signs of 2 pulses. */
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 Word16 index, /* i : Positions of the 2 pulses. */
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 Word16 cod[] /* o : algebraic (fixed) codebook excitation */
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 );
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55
c75327562b5e libtwamr: integrate d2_11pf.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 #endif