FreeCalypso > hg > gsm-codec-lib
annotate libtwamr/q_gain_c.h @ 381:32bc48faec4b
libtwamr: integrate int_lpc.c
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Mon, 06 May 2024 05:35:21 +0000 |
parents | 3a25bdfad0d8 |
children |
rev | line source |
---|---|
368
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1 /* |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2 ******************************************************************************** |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
3 * |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001 |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
5 * R99 Version 3.3.0 |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
6 * REL-4 Version 4.1.0 |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
7 * |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
8 ******************************************************************************** |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
9 * |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
10 * File : q_gain_c.h |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
11 * Purpose : Scalar quantization of the innovative |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
12 * : codebook gain. |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
13 * |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
14 ******************************************************************************** |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
15 */ |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
16 #ifndef q_gain_c_h |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
17 #define q_gain_c_h "$Id $" |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
18 |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
19 /* |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
20 ******************************************************************************** |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
21 * INCLUDE FILES |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
22 ******************************************************************************** |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
23 */ |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
24 #include "tw_amr.h" |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
25 #include "typedef.h" |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
26 #include "gc_pred.h" |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
27 |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
28 /* |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
29 ******************************************************************************** |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
30 * DECLARATION OF PROTOTYPES |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
31 ******************************************************************************** |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
32 */ |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
33 |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
34 /*--------------------------------------------------------------------------* |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
35 * Function q_gain_code() * |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
36 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
37 * Scalar quantization of the innovative codebook gain. * |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
38 * * |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
39 * gc_pred() is used for MA prediction of the innovation energy * |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
40 *--------------------------------------------------------------------------*/ |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
41 Word16 q_gain_code ( /* o : quantization index, Q0 */ |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
42 enum Mode mode, /* i : AMR mode */ |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
43 Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */ |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
44 Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */ |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
45 Word16 *gain, /* i/o: quantized fixed codebook gain, Q1 */ |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
46 Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */ |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
47 /* (for MR122 MA predictor update) */ |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
48 Word16 *qua_ener /* o : quantized energy error, Q10 */ |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
49 /* (for other MA predictor update) */ |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
50 ); |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
51 |
3a25bdfad0d8
libtwamr: integrate q_gain_c.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
52 #endif |