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comparison libtwamr/spreproc.h @ 403:7e0aeab69b10

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libtwamr: integrate spreproc.c
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 06 May 2024 23:11:34 +0000
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402:a8b73b1c5b19 403:7e0aeab69b10
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 : spreproc.h
11 * Purpose : Subframe preprocessing
12 *
13 ********************************************************************************
14 */
15 #ifndef spreproc_h
16 #define spreproc_h "$Id $"
17
18 /*
19 ********************************************************************************
20 * INCLUDE FILES
21 ********************************************************************************
22 */
23 #include "tw_amr.h"
24 #include "typedef.h"
25 #include "cnst.h"
26
27 /*
28 ********************************************************************************
29 * DECLARATION OF PROTOTYPES
30 ********************************************************************************
31 */
32 int subframePreProc(
33 enum Mode mode, /* i : coder mode */
34 const Word16 gamma1[], /* i : spectral exp. factor 1 */
35 const Word16 gamma1_12k2[],/* i : spectral exp. factor 1 for EFR */
36 const Word16 gamma2[], /* i : spectral exp. factor 2 */
37 Word16 *A, /* i : A(z) unquantized for the 4 subframes */
38 Word16 *Aq, /* i : A(z) quantized for the 4 subframes */
39 Word16 *speech, /* i : speech segment */
40 Word16 *mem_err, /* i : pointer to error signal */
41 Word16 *mem_w0, /* i : memory of weighting filter */
42 Word16 *zero, /* i : pointer to zero vector */
43 Word16 ai_zero[], /* o : history of weighted synth. filter */
44 Word16 exc[], /* o : long term prediction residual */
45 Word16 h1[], /* o : impulse response */
46 Word16 xn[], /* o : target vector for pitch search */
47 Word16 res2[], /* o : long term prediction residual */
48 Word16 error[] /* o : error of LPC synthesis filter */
49 );
50
51 #endif