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annotate amrdiff/amrdiff.c @ 0:a03c87a2abc6

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amrdiff program written
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 03 Apr 2024 18:44:27 +0000
parents
children b55451463161
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0
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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2 * This program reads two ETSI/3GPP test sequence files, one from
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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3 * the AMR set of 3GPP TS 26.074 and the other from the "EFR2" set of
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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4 * amr122_efr.zip, and performs a diff between them.
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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5 */
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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6
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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7 #include <stdio.h>
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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8 #include <stdint.h>
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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9 #include <stdlib.h>
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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10 #include <string.h>
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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11 #include <strings.h>
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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12 #include "etsi.h"
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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13 #include "amr_defs.h"
a03c87a2abc6 amrdiff program written
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14
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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15 main(argc, argv)
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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16 char **argv;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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17 {
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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18 char *amr_filename, *efr_filename;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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19 int amr_be, efr_be;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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20 FILE *inf_amr, *inf_efr;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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21 unsigned frame_no;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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22 uint8_t amr_bits[COD_FORMAT_NWORDS], efr_bits[ETSI_ENC_NWORDS];
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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23 int rc_amr, rc_efr, amr_sp, efr_sp;
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24
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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25 if (argc != 5) {
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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26 usage: fprintf(stderr,
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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27 "usage: %s amr-cod-file be|le efr-cod-file be|le\n",
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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28 argv[0]);
a03c87a2abc6 amrdiff program written
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29 exit(1);
a03c87a2abc6 amrdiff program written
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30 }
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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31 amr_filename = argv[1];
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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32 if (!strcmp(argv[2], "be"))
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33 amr_be = 1;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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34 else if (!strcmp(argv[2], "le"))
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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35 amr_be = 0;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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36 else
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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37 goto usage;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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38 efr_filename = argv[3];
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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39 if (!strcmp(argv[4], "be"))
a03c87a2abc6 amrdiff program written
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40 efr_be = 1;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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41 else if (!strcmp(argv[4], "le"))
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42 efr_be = 0;
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43 else
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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44 goto usage;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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45 inf_amr = fopen(amr_filename, "r");
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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46 if (!inf_amr) {
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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47 perror(amr_filename);
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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48 exit(1);
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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49 }
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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50 inf_efr = fopen(efr_filename, "r");
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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51 if (!inf_efr) {
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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52 perror(efr_filename);
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53 exit(1);
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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54 }
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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55 for (frame_no = 0; ; frame_no++) {
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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56 rc_amr = read_etsi_bits(inf_amr, amr_be, amr_bits,
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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57 COD_FORMAT_NWORDS, amr_filename);
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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58 rc_efr = read_etsi_bits(inf_efr, efr_be, efr_bits,
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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59 ETSI_ENC_NWORDS, efr_filename);
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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60 if (!rc_amr && !rc_efr)
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61 break;
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Mychaela Falconia <falcon@freecalypso.org>
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62 if (!rc_amr) {
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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63 printf("EFR file %s is longer than AMR file %s\n",
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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64 efr_filename, amr_filename);
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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65 exit(0);
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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66 }
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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67 if (!rc_efr) {
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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68 printf("AMR file %s is longer than EFR file %s\n",
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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69 amr_filename, efr_filename);
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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70 exit(0);
a03c87a2abc6 amrdiff program written
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71 }
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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72 /* grok AMR frame type */
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Mychaela Falconia <falcon@freecalypso.org>
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73 switch (amr_bits[0]) {
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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74 case TX_SPEECH_GOOD:
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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75 if (amr_bits[245] != MR122) {
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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76 fprintf(stderr,
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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77 "error: %s frame #%u is not MR122\n",
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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78 amr_filename, frame_no);
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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79 exit(1);
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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80 }
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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81 amr_sp = 1;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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82 break;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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83 case TX_SID_FIRST:
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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84 case TX_SID_UPDATE:
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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85 case TX_NO_DATA:
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Mychaela Falconia <falcon@freecalypso.org>
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86 amr_sp = 0;
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87 break;
a03c87a2abc6 amrdiff program written
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88 default:
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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89 fprintf(stderr,
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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90 "error: %s frame #%u has unknown type %u\n",
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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91 amr_filename, frame_no, amr_bits[0]);
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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92 exit(1);
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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93 }
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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94 efr_sp = efr_bits[245];
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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95 if (!amr_sp && !efr_sp)
a03c87a2abc6 amrdiff program written
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96 continue;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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97 if (!amr_sp || !efr_sp) {
a03c87a2abc6 amrdiff program written
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98 printf("frame #%u: AMR SP %d != EFR SP %d\n", frame_no,
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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99 amr_sp, efr_sp);
a03c87a2abc6 amrdiff program written
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100 continue;
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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101 }
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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102 if (bcmp(amr_bits+1, efr_bits, 244))
a03c87a2abc6 amrdiff program written
Mychaela Falconia <falcon@freecalypso.org>
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103 printf("frame #%u: bits differ\n", frame_no);
a03c87a2abc6 amrdiff program written
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104 }
a03c87a2abc6 amrdiff program written
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105 exit(0);
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Mychaela Falconia <falcon@freecalypso.org>
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106 }