FreeCalypso > hg > freecalypso-tools
annotate tchtools/fc-vm2gsmx.c @ 992:c4c400c1b10c
fc-loadtool flash: no flash2 ppb-erase-all
All PPBs from across the entire flash chip can only be erased together
as a unit, spanning across both banks on 16 MiB chips - therefore,
we shall disallow 'flash2 ppb-erase-all', and accept 'flash ppb-erase-all'
only.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 03 Dec 2023 04:47:31 +0000 |
parents | 546bf873ccc8 |
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1 /* |
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2 * This utility converts old-fashioned (non-AMR) TCS211 voice memo files |
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3 * read out of FFS into Themyscira Wireless gsmx (extended-libgsm) format, |
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4 * allowing further decoding into playable speech with gsmfr-decode. |
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5 */ |
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6 |
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7 #include <sys/types.h> |
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8 #include <stdio.h> |
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9 #include <stdlib.h> |
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10 |
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11 static char *infname; |
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12 static FILE *inf, *outf; |
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13 static u_long file_offset; |
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14 |
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15 static const u_char bfi_marker[2] = {0xBF, 0x00}; |
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16 |
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17 static unsigned |
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18 get_word() |
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19 { |
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20 u_char b[2]; |
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21 int i, c; |
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22 |
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23 for (i = 0; i < 2; i++) { |
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24 c = getc(inf); |
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25 if (c < 0) { |
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26 fprintf(stderr, "error: premature EOF in %s\n", |
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27 infname); |
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28 exit(1); |
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29 } |
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30 b[i] = c; |
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31 file_offset++; |
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32 } |
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33 return((b[1] << 8) | b[0]); |
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34 } |
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35 |
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36 static void |
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37 read_dsp_bytes(bytes) |
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38 u_char *bytes; |
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39 { |
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40 int i, dp; |
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41 unsigned word; |
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42 |
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43 dp = 0; |
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44 for (i = 0; i < 17; i++) { |
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45 word = get_word(); |
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46 bytes[dp++] = word >> 8; |
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47 bytes[dp++] = word; |
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48 } |
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49 } |
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50 |
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51 static void |
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52 convert_speech_sample() |
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53 { |
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54 u_char tidsp_bytes[34], libgsm_bytes[33]; |
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55 |
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56 read_dsp_bytes(tidsp_bytes); |
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57 gsm0610_tidsp_to_libgsm(tidsp_bytes, libgsm_bytes); |
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58 fwrite(libgsm_bytes, 1, 33, outf); |
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59 } |
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60 |
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61 main(argc, argv) |
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62 char **argv; |
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63 { |
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64 unsigned first_word; |
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65 |
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66 if (argc != 3) { |
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67 fprintf(stderr, "usage: %s infile outfile\n", argv[0]); |
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68 exit(1); |
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69 } |
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70 infname = argv[1]; |
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71 inf = fopen(infname, "r"); |
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72 if (!inf) { |
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73 perror(infname); |
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74 exit(1); |
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75 } |
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76 outf = fopen(argv[2], "w"); |
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77 if (!outf) { |
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78 perror(argv[2]); |
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79 exit(1); |
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80 } |
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81 for (;;) { |
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82 first_word = get_word(); |
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83 if (first_word == 0xFBFF) /* SC_VM_END_MASK */ |
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84 break; |
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85 if ((first_word & 0xB7FF) == 0x8400) { |
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86 /* skip dummy header words 1 and 2 */ |
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87 get_word(); |
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88 get_word(); |
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89 /* process the actual speech or SID frame */ |
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90 convert_speech_sample(); |
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91 } else if (first_word == 0x0400) { |
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92 /* it's a skipped frame, aka BFI */ |
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93 fwrite(bfi_marker, 1, 2, outf); |
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94 } else { |
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95 fprintf(stderr, |
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96 "error in %s at offset 0x%lx: invalid frame header word 0x%04X\n", |
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97 infname, file_offset, first_word); |
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98 exit(1); |
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99 } |
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100 } |
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101 fclose(outf); |
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102 exit(0); |
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103 } |