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comparison libtwamr/ol_ltp.h @ 417:f17e42c63058

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libtwamr: integrate ol_ltp.c
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 07 May 2024 03:21:14 +0000
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416:48c7f8e8c9af 417:f17e42c63058
1 /*
2 ********************************************************************************
3 *
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
5 * R99 Version 3.3.0
6 * REL-4 Version 4.1.0
7 *
8 ********************************************************************************
9 *
10 * File : ol_ltp.h
11 * Purpose : Compute the open loop pitch lag.
12 *
13 ********************************************************************************
14 */
15 #ifndef ol_ltp_h
16 #define ol_ltp_h "$Id $"
17
18 /*
19 ********************************************************************************
20 * INCLUDE FILES
21 ********************************************************************************
22 */
23 #include "tw_amr.h"
24 #include "typedef.h"
25 #include "p_ol_wgh.h"
26
27 /*
28 ********************************************************************************
29 * DECLARATION OF PROTOTYPES
30 ********************************************************************************
31 */
32 int ol_ltp(
33 pitchOLWghtState *st, /* i/o : State struct */
34 vadState *vadSt, /* i/o : VAD state struct */
35 enum Mode mode, /* i : coder mode */
36 Word16 wsp[], /* i : signal used to compute the OL pitch, Q0 */
37 /* uses signal[-pit_max] to signal[-1] */
38 Word16 *T_op, /* o : open loop pitch lag, Q0 */
39 Word16 old_lags[], /* i : history with old stored Cl lags */
40 Word16 ol_gain_flg[], /* i : OL gain flag */
41 Word16 idx, /* i : index */
42 Flag dtx /* i : dtx flag; use dtx=1, do not use dtx=0 */
43 );
44 #endif