FreeCalypso > hg > gsm-codec-lib
annotate frtest/decode.c @ 222:842136bbd0da
dev: new program s2a-regen
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 23 Apr 2023 04:09:24 +0000 |
parents | b9a842775f40 |
children | 8d3cfa65a6c2 |
rev | line source |
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1 /* |
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2 * This file is the main module for gsmfr-decode utility. |
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3 */ |
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4 |
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5 #include <stdio.h> |
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6 #include <stdint.h> |
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7 #include <stdlib.h> |
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8 #include <gsm.h> |
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9 #include "../libgsmfrp/gsm_fr_preproc.h" |
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10 #include "../libtest/binreader.h" |
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11 #include "../libtest/wavwriter.h" |
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12 #include "../libtest/pcmwrite.h" |
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13 |
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14 main(argc, argv) |
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15 char **argv; |
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16 { |
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17 FILE *binf; |
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18 void *wav; |
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19 gsm dec_state; |
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20 struct gsmfr_preproc_state *pp_state; |
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21 uint8_t frame[BINFILE_MAX_FRAME]; |
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22 int16_t pcm[160]; |
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23 int rc, bfi, taf; |
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24 |
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25 if (argc != 3) { |
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26 fprintf(stderr, "usage: %s input.gsm output.wav\n", argv[0]); |
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27 exit(1); |
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28 } |
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29 binf = fopen(argv[1], "r"); |
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30 if (!binf) { |
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31 perror(argv[1]); |
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32 exit(1); |
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33 } |
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34 wav = wav_write_open(argv[2], 8000, 16, 1); |
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35 if (!wav) { |
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36 perror(argv[2]); |
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37 exit(1); |
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38 } |
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39 dec_state = gsm_create(); |
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40 if (!dec_state) { |
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41 fprintf(stderr, "gsm_create() failed!\n"); |
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42 exit(1); |
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43 } |
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44 pp_state = gsmfr_preproc_create(); |
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45 if (!pp_state) { |
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46 fprintf(stderr, "gsmfr_preproc_create() failed!\n"); |
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47 exit(1); |
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48 } |
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49 for (;;) { |
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50 rc = binfile_read_frame(binf, frame); |
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51 if (rc < 0) { |
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52 fprintf(stderr, "error: garbage in %s\n", argv[1]); |
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53 exit(1); |
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54 } |
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55 if (!rc) |
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56 break; |
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57 if (frame[0] == 0xBF) { |
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58 bfi = 1; |
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59 taf = frame[1] & 1; |
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60 } else if ((frame[0] & 0xF0) == 0xD0) |
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61 bfi = 0; |
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62 else { |
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63 fprintf(stderr, "error: %s is not in FR codec format\n", |
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64 argv[1]); |
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65 exit(1); |
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66 } |
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67 if (bfi) |
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68 gsmfr_preproc_bfi(pp_state, taf, frame); |
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69 else |
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70 gsmfr_preproc_good_frame(pp_state, frame); |
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71 gsm_decode(dec_state, frame, pcm); |
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72 write_pcm_to_wav(wav, pcm); |
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73 } |
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74 wav_write_close(wav); |
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75 exit(0); |
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76 } |