FreeCalypso > hg > gsm-codec-lib
annotate libgsmfrp/state.c @ 87:41d8e8f4058d
libgsmefr: pstfilt2.c compiles
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 26 Nov 2022 10:27:34 +0000 (2022-11-26) |
parents | 286d5f097eb4 |
children |
rev | line source |
---|---|
3
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1 /* |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2 * In this module we implement allocation and initialization |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
3 * of state structures for our GSM FR preprocessor. |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
4 */ |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
5 |
4
286d5f097eb4
libgsmfrp: implement comfort noise generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
3
diff
changeset
|
6 #include <stdint.h> |
3
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
7 #include <stdlib.h> |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
8 #include <string.h> |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
9 #include "gsm_fr_preproc.h" |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
10 #include "internal.h" |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
11 |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
12 struct gsmfr_preproc_state *gsmfr_preproc_create(void) |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
13 { |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
14 struct gsmfr_preproc_state *st; |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
15 |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
16 st = malloc(sizeof(struct gsmfr_preproc_state)); |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
17 if (st) |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
18 gsmfr_preproc_reset(st); |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
19 return st; |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
20 } |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
21 |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
22 void gsmfr_preproc_reset(struct gsmfr_preproc_state *st) |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
23 { |
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
24 memset(st, 0, sizeof(struct gsmfr_preproc_state)); |
4
286d5f097eb4
libgsmfrp: implement comfort noise generation
Mychaela Falconia <falcon@freecalypso.org>
parents:
3
diff
changeset
|
25 st->cn_random_lfsr = PN_INITIAL_SEED; |
3
3cd5ad24b1d4
libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
26 } |