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

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 48c7f8e8c9af
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
416
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 ********************************************************************************
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * R99 Version 3.3.0
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * REL-4 Version 4.1.0
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 ********************************************************************************
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 *
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * File : p_ol_wgh.h
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 * Purpose : Compute the open loop pitch lag with weighting.
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 *
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 ********************************************************************************
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 #ifndef p_ol_wgh_h
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 #define p_ol_wgh_h "$Id $"
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 /*
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 ********************************************************************************
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 * INCLUDE FILES
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 ********************************************************************************
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 #include "tw_amr.h"
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 #include "typedef.h"
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 #include "vad.h"
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 /*
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 ********************************************************************************
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 * DEFINITION OF DATA TYPES
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 ********************************************************************************
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 /* state variable */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 typedef struct {
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 Word16 old_T0_med;
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 Word16 ada_w;
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 Word16 wght_flg;
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 } pitchOLWghtState;
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 /*
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 ********************************************************************************
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 * DECLARATION OF PROTOTYPES
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 ********************************************************************************
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 void p_ol_wgh_reset (pitchOLWghtState *st);
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 /* reset of pre processing state (i.e. set state memory to zero)
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 returns 0 on success
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 Word16 Pitch_ol_wgh ( /* o : open loop pitch lag */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 pitchOLWghtState *st, /* i/o : State struct */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 vadState *vadSt, /* i/o : VAD state struct */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 Word16 signal[], /* i : signal used to compute the open loop pitch */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 /* signal[-pit_max] to signal[-1] should be known */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 Word16 pit_min, /* i : minimum pitch lag */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 Word16 pit_max, /* i : maximum pitch lag */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 Word16 L_frame, /* i : length of frame to compute pitch */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 Word16 old_lags[], /* i : history with old stored Cl lags */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 Word16 ol_gain_flg[], /* i : OL gain flag */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 Word16 idx, /* i : index */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 Flag dtx /* i : dtx flag; use dtx=1, do not use dtx=0 */
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 );
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63
48c7f8e8c9af libtwamr: integrate p_ol_wgh.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 #endif