FreeCalypso > hg > gsm-codec-lib
annotate libtwamr/pow2.h @ 548:583dc4cbee95
efrtest: new program gsmefr-decode-tw5-r
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Fri, 04 Oct 2024 20:40:42 +0000 |
parents | 190c4c9a3693 |
children |
rev | line source |
---|---|
337
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1 /* |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2 ******************************************************************************** |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
3 * |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001 |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
5 * R99 Version 3.3.0 |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
6 * REL-4 Version 4.1.0 |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
7 * |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
8 ******************************************************************************** |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
9 * |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
10 * File : pow2.h |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
11 * Purpose : computes L_x = pow(2.0, exponent.fraction) |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
12 * |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
13 ******************************************************************************** |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
14 */ |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
15 #ifndef pow2_h |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
16 #define pow2_h "$Id $" |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
17 |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
18 /* |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
19 ******************************************************************************** |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
20 * INCLUDE FILES |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
21 ******************************************************************************** |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
22 */ |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
23 #include "typedef.h" |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
24 |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
25 /* |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
26 ******************************************************************************** |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
27 * DEFINITION OF DATA TYPES |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
28 ******************************************************************************** |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
29 */ |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
30 |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
31 /* |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
32 ******************************************************************************** |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
33 * DECLARATION OF PROTOTYPES |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
34 ******************************************************************************** |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
35 */ |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
36 Word32 Pow2 ( /* (o) : result (range: 0<=val<=0x7fffffff) */ |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
37 Word16 exponent, /* (i) : Integer part. (range: 0<=val<=30) */ |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
38 Word16 fraction /* (i) : Fractional part. (range: 0.0<=val<1.0) */ |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
39 ); |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
40 |
190c4c9a3693
libtwamr: integrate pow2.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
41 #endif |