FreeCalypso > hg > gsm-codec-lib

annotate frtest/decode-r.c @ 153:14b627682458

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