FreeCalypso > hg > gsm-codec-lib
comparison frtest/preproc.c @ 24:94f18b720f1e
new debug utility gsmfr-preproc
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 20 Nov 2022 08:30:07 +0000 |
parents | frtest/decode.c@b9a842775f40 |
children | b722fcb52926 |
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23:baadb1cb744d | 24:94f18b720f1e |
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1 /* | |
2 * This utility reads an extended-libgsm file that may contain SID frames | |
3 * and BFI markers, passes it through our preprocessor and writes out | |
4 * pure libgsm frames. | |
5 */ | |
6 | |
7 #include <stdio.h> | |
8 #include <stdint.h> | |
9 #include <stdlib.h> | |
10 #include "../libgsmfrp/gsm_fr_preproc.h" | |
11 #include "../libtest/binreader.h" | |
12 | |
13 main(argc, argv) | |
14 char **argv; | |
15 { | |
16 FILE *bini, *bino; | |
17 struct gsmfr_preproc_state *pp_state; | |
18 uint8_t frame[BINFILE_MAX_FRAME]; | |
19 int rc, bfi, taf; | |
20 | |
21 if (argc != 3) { | |
22 fprintf(stderr, "usage: %s input.gsm output.gsm\n", argv[0]); | |
23 exit(1); | |
24 } | |
25 bini = fopen(argv[1], "r"); | |
26 if (!bini) { | |
27 perror(argv[1]); | |
28 exit(1); | |
29 } | |
30 bino = fopen(argv[2], "w"); | |
31 if (!bino) { | |
32 perror(argv[2]); | |
33 exit(1); | |
34 } | |
35 pp_state = gsmfr_preproc_create(); | |
36 if (!pp_state) { | |
37 fprintf(stderr, "gsmfr_preproc_create() failed!\n"); | |
38 exit(1); | |
39 } | |
40 for (;;) { | |
41 rc = binfile_read_frame(bini, frame); | |
42 if (rc < 0) { | |
43 fprintf(stderr, "error: garbage in %s\n", argv[1]); | |
44 exit(1); | |
45 } | |
46 if (!rc) | |
47 break; | |
48 if (frame[0] == 0xBF) { | |
49 bfi = 1; | |
50 taf = frame[1] & 1; | |
51 } else if ((frame[0] & 0xF0) == 0xD0) | |
52 bfi = 0; | |
53 else { | |
54 fprintf(stderr, "error: %s is not in FR codec format\n", | |
55 argv[1]); | |
56 exit(1); | |
57 } | |
58 if (bfi) | |
59 gsmfr_preproc_bfi(pp_state, taf, frame); | |
60 else | |
61 gsmfr_preproc_good_frame(pp_state, frame); | |
62 fwrite(frame, 1, 33, bino); | |
63 } | |
64 fclose(bino); | |
65 exit(0); | |
66 } |