FreeCalypso > hg > gsm-codec-lib
annotate efrtest/cod-parse.c @ 139:be57e06bed84
factor out common part of gsmfr-cvt-dlcap, in prep for EFR
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 13 Dec 2022 07:03:55 +0000 |
parents | a5ffec18e4cd |
children | 90b9c7c3fa3b |
rev | line source |
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gsmefr-cod-parse test program written
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1 /* |
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2 * This program reads an EFR *.cod file in ETSI test sequence format |
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3 * (output from either ETSI's official coder program or our gsmefr-etsi-enc) |
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4 * and converts it into human-readable format, similar to what one would get |
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5 * from our gsmrec-dump utility. |
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6 */ |
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7 |
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8 #include <stdio.h> |
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9 #include <stdint.h> |
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10 #include <stdlib.h> |
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11 #include <string.h> |
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12 #include <strings.h> |
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13 #include "../libgsmefr/gsm_efr.h" |
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14 |
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15 #define ETSI_ENC_NWORDS 246 |
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16 |
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17 static int |
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18 read_input(inf, bitvec, filename_for_errs) |
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19 FILE *inf; |
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20 uint8_t *bitvec; |
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21 char *filename_for_errs; |
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22 { |
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23 uint8_t file_bytes[ETSI_ENC_NWORDS * 2], *sp; |
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24 int cc; |
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25 unsigned n; |
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26 |
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27 cc = fread(file_bytes, 2, ETSI_ENC_NWORDS, inf); |
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28 if (cc == 0) |
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29 return 0; |
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30 if (cc != ETSI_ENC_NWORDS) { |
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31 fprintf(stderr, "error: short read from %s\n", |
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32 filename_for_errs); |
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33 exit(1); |
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34 } |
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35 sp = file_bytes; |
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36 for (n = 0; n < ETSI_ENC_NWORDS; n++) { |
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37 if (sp[1]) { |
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38 fprintf(stderr, |
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39 "error in %s: non-zero in what should be LE upper byte\n", |
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40 filename_for_errs); |
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41 exit(1); |
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42 } |
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43 bitvec[n] = sp[0]; |
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44 sp += 2; |
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45 } |
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46 return 1; |
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47 } |
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48 |
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49 static void |
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50 bits2frame(input_bits, frame, filename_for_errs, frame_no) |
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51 uint8_t *input_bits, *frame; |
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52 char *filename_for_errs; |
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53 unsigned frame_no; |
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54 { |
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55 uint8_t bits[248], *sp, *dp; |
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56 unsigned nb, byte, mask; |
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57 |
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58 bits[0] = 1; |
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59 bits[1] = 1; |
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60 bits[2] = 0; |
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61 bits[3] = 0; |
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62 bcopy(input_bits, bits + 4, 244); |
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63 sp = bits; |
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64 dp = frame; |
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65 for (nb = 0; nb < EFR_RTP_FRAME_LEN; nb++) { |
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66 byte = 0; |
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67 for (mask = 0x80; mask; mask >>= 1) { |
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68 if (*sp > 1) { |
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69 fprintf(stderr, |
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70 "error in %s frame #%u: data bit > 1\n", |
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71 filename_for_errs, frame_no); |
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72 exit(1); |
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73 } |
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74 if (*sp) |
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75 byte |= mask; |
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76 sp++; |
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77 } |
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78 *dp++ = byte; |
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79 } |
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80 } |
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81 |
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82 main(argc, argv) |
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83 char **argv; |
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84 { |
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85 FILE *inf; |
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86 unsigned frame_no; |
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87 uint8_t input_bits[ETSI_ENC_NWORDS], frame[EFR_RTP_FRAME_LEN]; |
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88 int16_t params[EFR_NUM_PARAMS]; |
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89 int rc, i, j, n; |
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90 |
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91 if (argc != 2) { |
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92 fprintf(stderr, "usage: %s file.cod\n", argv[0]); |
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93 exit(1); |
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94 } |
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95 inf = fopen(argv[1], "r"); |
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96 if (!inf) { |
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97 perror(argv[1]); |
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98 exit(1); |
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99 } |
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100 for (frame_no = 0; ; frame_no++) { |
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101 rc = read_input(inf, input_bits, argv[1]); |
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102 if (!rc) |
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103 break; |
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104 bits2frame(input_bits, frame, argv[1], frame_no); |
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105 printf("#%u: VAD=%u SP=%u SID=%d LPC", frame_no, |
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106 input_bits[244], input_bits[245], |
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107 EFR_sid_classify(frame)); |
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108 EFR_frame2params(frame, params); |
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109 n = 0; |
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110 for (i = 0; i < 5; i++) |
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111 printf(" %d", params[n++]); |
115
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112 putchar('\n'); |
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113 for (i = 0; i < 4; i++) { |
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114 putchar(' '); |
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115 for (j = 0; j < 13; j++) |
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116 printf(" %d", params[n++]); |
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117 putchar('\n'); |
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118 } |
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119 } |
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120 } |