FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/post_pro.h @ 556:18aca50d68df default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
doc/Calypso-TCH-downlink: update for FR1 BFI-with-data
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 11 Oct 2024 01:54:00 +0000
parents a0f914a28371
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
392
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 ********************************************************************************
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * R99 Version 3.3.0
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * REL-4 Version 4.1.0
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 ********************************************************************************
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 *
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * File : post_pro.h
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 * Purpose : Postprocessing of output speech.
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 *
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 * - 2nd order high pass filtering with cut
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 * off frequency at 60 Hz.
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 * - Multiplication of output by two.
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 *
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 ********************************************************************************
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 */
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 #ifndef post_pro_h
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 #define post_pro_h "$Id $"
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 /*
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 ********************************************************************************
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 * INCLUDE FILES
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 ********************************************************************************
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 */
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 #include "typedef.h"
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 /*
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 ********************************************************************************
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 * LOCAL VARIABLES AND TABLES
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 ********************************************************************************
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 */
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 /*
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 ********************************************************************************
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 * DEFINITION OF DATA TYPES
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 ********************************************************************************
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 */
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 typedef struct {
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 Word16 y2_hi;
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 Word16 y2_lo;
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 Word16 y1_hi;
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 Word16 y1_lo;
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 Word16 x0;
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 Word16 x1;
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 } Post_ProcessState;
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 /*
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 ********************************************************************************
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 * DECLARATION OF PROTOTYPES
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 ********************************************************************************
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 */
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 void Post_Process_reset (Post_ProcessState *st);
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 /* reset of Post processing state (i.e. set state memory to zero)
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 returns 0 on success
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 */
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 int Post_Process (
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 Post_ProcessState *st, /* i/o : post process state */
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 Word16 signal[], /* i/o : signal */
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 Word16 lg /* i : lenght of signal */
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 );
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65
a0f914a28371 libtwamr: integrate post_pro.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 #endif