FreeCalypso > hg > gsm-codec-lib
annotate efrtest/decode-r.c @ 210:7e490a8efe8a
doc/Binary-file-format: document BFI marker format
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 16 Apr 2023 19:00:46 +0000 |
parents | 01ce75ea1c8e |
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1 /* |
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2 * gsmefr-decode-r is like gsmefr-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 "../libgsmefr/gsm_efr.h" |
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10 #include "../libtest/binreader.h" |
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11 #include "../libtest/robewrite.h" |
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12 |
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13 main(argc, argv) |
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14 char **argv; |
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15 { |
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16 FILE *binf, *outf; |
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17 struct EFR_decoder_state *state; |
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18 uint8_t frame[BINFILE_MAX_FRAME]; |
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19 int16_t pcm[160]; |
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20 int rc, bfi, taf; |
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21 |
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22 if (argc != 3) { |
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23 fprintf(stderr, "usage: %s input.gsmx output.robe\n", argv[0]); |
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24 exit(1); |
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25 } |
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26 binf = fopen(argv[1], "r"); |
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27 if (!binf) { |
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28 perror(argv[1]); |
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29 exit(1); |
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30 } |
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31 outf = fopen(argv[2], "w"); |
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32 if (!outf) { |
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33 perror(argv[2]); |
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34 exit(1); |
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35 } |
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36 state = EFR_decoder_create(); |
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37 if (!state) { |
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38 perror("EFR_decoder_create()"); |
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39 exit(1); |
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40 } |
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41 for (;;) { |
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42 rc = binfile_read_frame(binf, frame); |
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43 if (rc < 0) { |
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44 fprintf(stderr, "error: garbage in %s\n", argv[1]); |
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45 exit(1); |
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46 } |
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47 if (!rc) |
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48 break; |
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49 if (frame[0] == 0xBF) { |
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50 bfi = 1; |
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51 taf = frame[1] & 1; |
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52 } else if ((frame[0] & 0xF0) == 0xC0) |
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53 bfi = 0; |
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54 else { |
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55 fprintf(stderr, |
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56 "error: %s is not in EFR codec format\n", |
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57 argv[1]); |
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58 exit(1); |
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59 } |
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60 if (bfi) |
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61 EFR_decode_bfi_nodata(state, taf, pcm); |
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62 else |
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63 EFR_decode_frame(state, frame, 0, 0, pcm); |
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64 write_pcm_to_robe(outf, pcm); |
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65 } |
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66 fclose(outf); |
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67 exit(0); |
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68 } |