FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/spreproc.h @ 483:4f13db3a7086

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
doc/Utils-overview: document new utilities
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 20 May 2024 01:26:12 +0000
parents 7e0aeab69b10
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
403
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 ********************************************************************************
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * R99 Version 3.3.0
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * REL-4 Version 4.1.0
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 ********************************************************************************
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 *
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * File : spreproc.h
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 * Purpose : Subframe preprocessing
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 *
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 ********************************************************************************
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 #ifndef spreproc_h
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 #define spreproc_h "$Id $"
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 /*
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 ********************************************************************************
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 * INCLUDE FILES
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 ********************************************************************************
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 #include "tw_amr.h"
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 #include "typedef.h"
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 #include "cnst.h"
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 /*
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 ********************************************************************************
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 * DECLARATION OF PROTOTYPES
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 ********************************************************************************
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 int subframePreProc(
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 enum Mode mode, /* i : coder mode */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 const Word16 gamma1[], /* i : spectral exp. factor 1 */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 const Word16 gamma1_12k2[],/* i : spectral exp. factor 1 for EFR */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 const Word16 gamma2[], /* i : spectral exp. factor 2 */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 Word16 *A, /* i : A(z) unquantized for the 4 subframes */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 Word16 *Aq, /* i : A(z) quantized for the 4 subframes */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 Word16 *speech, /* i : speech segment */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 Word16 *mem_err, /* i : pointer to error signal */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 Word16 *mem_w0, /* i : memory of weighting filter */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 Word16 *zero, /* i : pointer to zero vector */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 Word16 ai_zero[], /* o : history of weighted synth. filter */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 Word16 exc[], /* o : long term prediction residual */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 Word16 h1[], /* o : impulse response */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 Word16 xn[], /* o : target vector for pitch search */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 Word16 res2[], /* o : long term prediction residual */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 Word16 error[] /* o : error of LPC synthesis filter */
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 );
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50
7e0aeab69b10 libtwamr: integrate spreproc.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 #endif