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comparison libtwamr/e_homing.c @ 361:9aa554f8cf39

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libtwamr: integrate e_homing.c
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 06 May 2024 01:57:25 +0000
parents
children 2a094af3d384
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360:b22f13fd0f6a 361:9aa554f8cf39
1 /*
2 *****************************************************************************
3 *
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
5 * R99 Version 3.3.0
6 * REL-4 Version 4.1.0
7 *
8 *****************************************************************************
9 *
10 * File : e_homing.c
11 *
12 *****************************************************************************
13 */
14
15 /*
16 *****************************************************************************
17 * MODULE INCLUDE FILE AND VERSION ID
18 *****************************************************************************
19 */
20
21 #include "namespace.h"
22 #include "e_homing.h"
23
24 /*
25 *****************************************************************************
26 * INCLUDE FILES
27 *****************************************************************************
28 */
29
30 #include "typedef.h"
31 #include "cnst.h"
32
33 /*
34 *****************************************************************************
35 * PUBLIC PROGRAM CODE
36 *****************************************************************************
37 */
38
39 /*
40 ********************************************************************************
41 *
42 * Function : encoder_homing_frame_test
43 * In : input_frame[] one frame of speech samples
44 * Out : none
45 * Calls : none
46 * Tables : none
47 * Compile Defines : none
48 * Return : 0 input frame does not match the encoder homing frame pattern
49 * 1 input frame matches the encoder homing frame pattern
50 * Information : Checks if all samples of the input frame matches the encoder
51 * homing frame pattern, which is 0x0008 for all samples.
52 *
53 ********************************************************************************
54 */
55
56 Word16 encoder_homing_frame_test (Word16 input_frame[])
57 {
58 Word16 i, j;
59
60 /* check 160 input samples for matching EHF_MASK: defined in e_homing.h */
61 for (i = 0; i < L_FRAME; i++)
62 {
63 j = input_frame[i] ^ EHF_MASK;
64
65 if (j)
66 break;
67 }
68
69 return !j;
70 }