FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/d_gain_p.c @ 585:3c6bf0d26ee7 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
TW-TS-005 reader: fix maximum line length bug TW-TS-005 section 4.1 states: The maximum allowed length of each line is 80 characters, not including the OS-specific newline encoding. The implementation of this line length limit in the TW-TS-005 hex file reader function in the present suite was wrong, such that lines of the full maximum length could not be read. Fix it. Note that this bug affects comment lines too, not just actual RTP payloads. Neither Annex A nor Annex B features an RTP payload format that goes to the maximum of 40 bytes, but if a comment line goes to the maximum allowed length of 80 characters not including the terminating newline, the bug will be triggered, necessitating the present fix.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 25 Feb 2025 07:49:28 +0000
parents e18452a4fbac
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
340
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 ********************************************************************************
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * R99 Version 3.3.0
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * REL-4 Version 4.1.0
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 ********************************************************************************
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 *
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * File : d_gain_p.c
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 *
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 ********************************************************************************
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 */
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 /*
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 ********************************************************************************
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 * MODULE INCLUDE FILE AND VERSION ID
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 ********************************************************************************
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 */
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 #include "namespace.h"
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 #include "d_gain_p.h"
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 /*
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 ********************************************************************************
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 * INCLUDE FILES
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 ********************************************************************************
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 */
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 #include "tw_amr.h"
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 #include "typedef.h"
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 #include "basic_op.h"
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 #include "oper_32b.h"
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 #include "no_count.h"
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 #include "cnst.h"
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 #include "gains_tab.h"
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 /*
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 ********************************************************************************
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 * PUBLIC PROGRAM CODE
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 ********************************************************************************
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 */
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 /*
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 **************************************************************************
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 *
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 * Function : d_gain_pitch
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 * Purpose : Decodes the pitch gain using the received index.
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 * output is in Q14
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 *
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 **************************************************************************
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 */
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 Word16 d_gain_pitch ( /* return value: gain (Q14) */
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 enum Mode mode, /* i : AMR mode */
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 Word16 index /* i : index of quantization */
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 )
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 {
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 Word16 gain;
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 test ();
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 if (sub(mode, MR122) == 0)
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 {
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 /* clear 2 LSBits */
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 gain = shl (shr (qua_gain_pitch[index], 2), 2); move16 ();
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 }
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 else
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 {
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 gain = qua_gain_pitch[index]; move16 ();
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 }
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70 return gain;
e18452a4fbac libtwamr: integrate d_gain_p.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71 }