FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/e_homing.c @ 544:bd32bb1e8dab

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
doc/EFR-library-API: document malloc-alternative provision
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 03 Oct 2024 08:22:41 +0000
parents 2a094af3d384
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
361
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 *****************************************************************************
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * R99 Version 3.3.0
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * REL-4 Version 4.1.0
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 *****************************************************************************
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 *
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * File : e_homing.c
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 *
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 *****************************************************************************
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 */
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 /*
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 *****************************************************************************
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 * MODULE INCLUDE FILE AND VERSION ID
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 *****************************************************************************
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 */
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 #include "namespace.h"
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 #include "e_homing.h"
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 /*
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 *****************************************************************************
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 * INCLUDE FILES
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 *****************************************************************************
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 */
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 #include "typedef.h"
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 #include "cnst.h"
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 /*
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 *****************************************************************************
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 * PUBLIC PROGRAM CODE
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 *****************************************************************************
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 */
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 /*
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 ********************************************************************************
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 *
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 * Function : encoder_homing_frame_test
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 * In : input_frame[] one frame of speech samples
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 * Out : none
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 * Calls : none
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 * Tables : none
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 * Compile Defines : none
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 * Return : 0 input frame does not match the encoder homing frame pattern
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 * 1 input frame matches the encoder homing frame pattern
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 * Information : Checks if all samples of the input frame matches the encoder
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 * homing frame pattern, which is 0x0008 for all samples.
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 *
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 ********************************************************************************
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 */
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55
419
2a094af3d384 libtwamr: implement encoder top level
Mychaela Falconia <falcon@freecalypso.org>
parents: 361
diff changeset
56 Word16 encoder_homing_frame_test (const Word16 input_frame[])
361
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 {
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 Word16 i, j;
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 /* check 160 input samples for matching EHF_MASK: defined in e_homing.h */
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 for (i = 0; i < L_FRAME; i++)
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 {
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 j = input_frame[i] ^ EHF_MASK;
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 if (j)
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 break;
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 }
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 return !j;
9aa554f8cf39 libtwamr: integrate e_homing.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70 }