FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/qua_gain.h @ 529:79cd992de3ad

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
libgsmfr2: API definitions for TFO transform
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 19 Sep 2024 08:07:26 +0000
parents b02e043dcba0
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
377
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 ********************************************************************************
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * R99 Version 3.3.0
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * REL-4 Version 4.1.0
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 ********************************************************************************
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 *
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * File : qua_gain.h
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 * Purpose : Quantization of pitch and codebook gains.
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 *
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 ********************************************************************************
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 #ifndef qua_gain_h
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 #define qua_gain_h "$Id $"
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 /*
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 ********************************************************************************
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 * INCLUDE FILES
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 ********************************************************************************
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 #include "tw_amr.h"
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 #include "typedef.h"
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 /*
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 ********************************************************************************
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 * DECLARATION OF PROTOTYPES
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 ********************************************************************************
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 /*************************************************************************
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 *
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 * FUNCTION: Qua_gain()
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 *
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 * PURPOSE: Quantization of pitch and codebook gains.
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 * (using predicted codebook gain)
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 *
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 *************************************************************************/
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 Word16
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 Qua_gain( /* o : index of quantization. */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 enum Mode mode, /* i : AMR mode */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 Word16 frac_coeff[], /* i : energy coeff. (5), fraction part, Q15 */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 Word16 exp_coeff[], /* i : energy coeff. (5), exponent part, Q0 */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 /* (frac_coeff and exp_coeff computed in */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 /* calc_filt_energies()) */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 Word16 gp_limit, /* i : pitch gain limit */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 Word16 *gain_pit, /* o : Pitch gain, Q14 */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 Word16 *gain_cod, /* o : Code gain, Q1 */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 /* (for MR122 MA predictor update) */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 Word16 *qua_ener /* o : quantized energy error, Q10 */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 /* (for other MA predictor update) */
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 );
b02e043dcba0 libtwamr: integrate qua_gain.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 #endif