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comparison trau-decode/parse-fr-common.c @ 76:d4ee42801cdc

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trau-decode: factor out parse-fr-common.c
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 08 Feb 2025 04:57:15 +0000
parents trau-decode/parse-main.c@f77a48a01ff0
children
comparison
equal deleted inserted replaced
75:b518ab15b518 76:d4ee42801cdc
1 /*
2 * This module contains a bit of code that has been factored out of
3 * trau-parse and tfo-parse-fr16 programs; it handles FR and EFR codecs.
4 */
5
6 #include <stdio.h>
7 #include <stdint.h>
8 #include <stdlib.h>
9 #include <string.h>
10 #include <strings.h>
11
12 static void
13 collect_d_bits(frame_bits, d_bits)
14 uint8_t *frame_bits, *d_bits;
15 {
16 bcopy(frame_bits + 33, d_bits, 15);
17 bcopy(frame_bits + 49, d_bits + 15, 15);
18 bcopy(frame_bits + 65, d_bits + 30, 15);
19 bcopy(frame_bits + 81, d_bits + 45, 15);
20 bcopy(frame_bits + 97, d_bits + 60, 15);
21 bcopy(frame_bits + 113, d_bits + 75, 15);
22 bcopy(frame_bits + 129, d_bits + 90, 15);
23 bcopy(frame_bits + 145, d_bits + 105, 15);
24 bcopy(frame_bits + 161, d_bits + 120, 15);
25 bcopy(frame_bits + 177, d_bits + 135, 15);
26 bcopy(frame_bits + 193, d_bits + 150, 15);
27 bcopy(frame_bits + 209, d_bits + 165, 15);
28 bcopy(frame_bits + 225, d_bits + 180, 15);
29 bcopy(frame_bits + 241, d_bits + 195, 15);
30 bcopy(frame_bits + 257, d_bits + 210, 15);
31 bcopy(frame_bits + 273, d_bits + 225, 15);
32 bcopy(frame_bits + 289, d_bits + 240, 15);
33 bcopy(frame_bits + 305, d_bits + 255, 5);
34 }
35
36 void
37 print_fr_efr_frame(frame_bits, c1_5)
38 uint8_t *frame_bits;
39 unsigned c1_5;
40 {
41 uint8_t d_bits[260];
42
43 switch (c1_5) {
44 case 0x02:
45 case 0x1C:
46 collect_d_bits(frame_bits, d_bits);
47 print_fr_frame(d_bits);
48 break;
49 case 0x1A:
50 collect_d_bits(frame_bits, d_bits);
51 check_efr_crc(d_bits);
52 print_efr_frame(d_bits);
53 break;
54 }
55 }