FreeCalypso > hg > gsm-codec-lib
comparison frtest/decode-r.c @ 153:14b627682458
gsmfr-decode-r utility put together
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 14 Dec 2022 23:11:20 +0000 |
parents | frtest/decode.c@b9a842775f40 |
children | cfa3006a66da |
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152:a217a6eacbad | 153:14b627682458 |
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1 /* | |
2 * gsmfr-decode-r is like gsmfr-decode, but writes the decoded PCM | |
3 * output in our "robe" format instead of WAV. | |
4 */ | |
5 | |
6 #include <stdio.h> | |
7 #include <stdint.h> | |
8 #include <stdlib.h> | |
9 #include <gsm.h> | |
10 #include "../libgsmfrp/gsm_fr_preproc.h" | |
11 #include "../libtest/binreader.h" | |
12 #include "../libtest/robewrite.h" | |
13 | |
14 main(argc, argv) | |
15 char **argv; | |
16 { | |
17 FILE *binf, *outf; | |
18 gsm dec_state; | |
19 struct gsmfr_preproc_state *pp_state; | |
20 uint8_t frame[BINFILE_MAX_FRAME]; | |
21 int16_t pcm[160]; | |
22 int rc, bfi, taf; | |
23 | |
24 if (argc != 3) { | |
25 fprintf(stderr, "usage: %s input.gsm output.robe\n", argv[0]); | |
26 exit(1); | |
27 } | |
28 binf = fopen(argv[1], "r"); | |
29 if (!binf) { | |
30 perror(argv[1]); | |
31 exit(1); | |
32 } | |
33 outf = fopen(argv[2], "w"); | |
34 if (!outf) { | |
35 perror(argv[2]); | |
36 exit(1); | |
37 } | |
38 dec_state = gsm_create(); | |
39 if (!dec_state) { | |
40 fprintf(stderr, "gsm_create() failed!\n"); | |
41 exit(1); | |
42 } | |
43 pp_state = gsmfr_preproc_create(); | |
44 if (!pp_state) { | |
45 fprintf(stderr, "gsmfr_preproc_create() failed!\n"); | |
46 exit(1); | |
47 } | |
48 for (;;) { | |
49 rc = binfile_read_frame(binf, frame); | |
50 if (rc < 0) { | |
51 fprintf(stderr, "error: garbage in %s\n", argv[1]); | |
52 exit(1); | |
53 } | |
54 if (!rc) | |
55 break; | |
56 if (frame[0] == 0xBF) { | |
57 bfi = 1; | |
58 taf = frame[1] & 1; | |
59 } else if ((frame[0] & 0xF0) == 0xD0) | |
60 bfi = 0; | |
61 else { | |
62 fprintf(stderr, "error: %s is not in FR codec format\n", | |
63 argv[1]); | |
64 exit(1); | |
65 } | |
66 if (bfi) | |
67 gsmfr_preproc_bfi(pp_state, taf, frame); | |
68 else | |
69 gsmfr_preproc_good_frame(pp_state, frame); | |
70 gsm_decode(dec_state, frame, pcm); | |
71 write_pcm_to_robe(outf, pcm); | |
72 } | |
73 fclose(outf); | |
74 exit(0); | |
75 } |