Mercurial > hg > wm
annotate Meerwald/gen_kund3_sig.c @ 22:d8551fb39a5e default tip
Added tag v0.6 for changeset 1c4ccd635a68
| author | Peter Meerwald-Stadler <pmeerw@pmeerw.net> |
|---|---|
| date | Sat, 28 Jan 2023 23:57:51 +0100 |
| parents | ad1d224896c5 |
| children |
| rev | line source |
|---|---|
| 3 | 1 #include "wm.h" |
| 2 #include "signature.h" | |
| 3 | |
| 4 char *progname; | |
| 5 | |
| 6 void usage(void) { | |
| 7 fprintf(stderr, "usage: %s [-e n] [-f n] [-F file] [-l n] [-n n] [-o file] [-q n] [-s file] [-S n] [-v n] file\n\n", progname); | |
| 8 fprintf(stderr, "\t-h\t\tprint usage\n"); | |
| 9 fprintf(stderr, "\t-e n\t\twavelet filtering method (default 2)\n"); | |
| 10 fprintf(stderr, "\t-f n\t\tfilter number (default 1)\n"); | |
| 11 fprintf(stderr, "\t-F file\t\tfilter definition file (default 'filter.dat')\n"); | |
| 12 fprintf(stderr, "\t-l n\t\tembedding level (default 1)\n"); | |
| 13 fprintf(stderr, "\t-n n\t\twatermark bit length\n"); | |
| 14 fprintf(stderr, "\t-o file\t\toutput file\n"); | |
| 15 fprintf(stderr, "\t-q n\t\tsignature strength (default 4)\n"); | |
| 16 fprintf(stderr, "\t-s file\t\tuse signature file's embedding information\n"); | |
| 17 fprintf(stderr, "\t-S n\t\tseed\n"); | |
| 18 fprintf(stderr, "\t-v n\t\tverbosity level\n"); | |
| 19 exit(0); | |
| 20 } | |
| 21 | |
| 22 int main(int argc, char *argv[]) { | |
| 23 FILE *in = stdin; | |
| 24 FILE *out = stdout; | |
| 25 FILE *sig = NULL; | |
| 26 | |
| 27 char output_name[MAXPATHLEN] = "(stdout)"; | |
| 28 char input_name[MAXPATHLEN] = "(stdin)"; | |
| 29 char signature_name[MAXPATHLEN]; | |
| 30 char *binstr; | |
| 31 | |
| 32 int verbose = 0; | |
| 33 int c; | |
| 34 int i; | |
| 35 int l = 1; | |
| 36 int n = 0; | |
| 37 int s = 0; | |
| 38 int q = 4; | |
| 39 int e = 2; | |
| 40 int f = 1; | |
| 41 char F[MAXPATHLEN] = "filter.dat"; | |
| 42 | |
| 43 progname = argv[0]; | |
| 44 | |
| 45 wm_init(); | |
| 46 | |
| 47 while ((c = getopt(argc, argv, "e:f:F:h?l:n:o:q:s:S:v:")) != EOF) { | |
| 48 switch (c) { | |
| 49 case 'e': | |
| 50 e = atoi(optarg); | |
| 51 if (e < 0) { | |
| 52 fprintf(stderr, "%s: wavelet filtering method %d out of range\n", progname, e); | |
| 53 } | |
| 54 break; | |
| 55 case 'f': | |
| 56 f = atoi(optarg); | |
| 57 if (f <= 0) { | |
| 58 fprintf(stderr, "%s: filter number %d out of range\n", progname, f); | |
| 59 exit(1); | |
| 60 } | |
| 61 break; | |
| 62 case 'F': | |
| 63 strcpy(F, optarg); | |
| 64 break; | |
| 65 case 'h': | |
| 66 case '?': | |
| 67 usage(); | |
| 68 break; | |
| 69 case 'l': | |
| 70 l = atoi(optarg); | |
| 71 if (l < 1) { | |
| 72 fprintf(stderr, "%s: embedding level out of range\n", progname); | |
| 73 exit(1); | |
| 74 } | |
| 75 break; | |
| 76 case 'n': | |
| 77 n = atoi(optarg); | |
| 78 if (n < 1 || n > 1000) { | |
| 79 fprintf(stderr, "%s: watermark length %d out of range\n", progname, n); | |
| 80 exit(1); | |
| 81 } | |
| 82 break; | |
| 83 case 'o': | |
| 84 if ((out = fopen(optarg, "wb")) == NULL) { | |
| 85 fprintf(stderr, "%s: unable to open output file %s\n", progname, optarg); | |
| 86 exit(1); | |
| 87 } | |
| 88 strcpy(output_name, optarg); | |
| 89 break; | |
| 90 case 'q': | |
| 91 q = atoi(optarg); | |
| 92 if (q < 1) { | |
| 93 fprintf(stderr, "%s: signature strength %d out of range\n", progname, q); | |
| 94 exit(1); | |
| 95 } | |
| 96 break; | |
| 97 case 's': | |
| 98 if ((sig = fopen(optarg, "r")) == NULL) { | |
| 99 fprintf(stderr, "%s: unable to open signature file %s\n", progname, optarg); | |
| 100 exit(1); | |
| 101 } | |
| 102 strcpy(signature_name, optarg); | |
| 103 break; | |
| 104 case 'S': | |
| 105 s = atoi(optarg); | |
| 106 break; | |
| 107 case 'v': | |
| 108 verbose = atoi(optarg); | |
| 109 if (verbose < 0) { | |
| 110 fprintf(stderr, "%s: verbosity level %d out of range", progname, verbose); | |
| 111 exit(1); | |
| 112 } | |
| 113 break; | |
| 114 } | |
| 115 } | |
| 116 | |
| 117 argc -= optind; | |
| 118 argv += optind; | |
| 119 | |
| 120 if (argc > 1) { | |
| 121 usage(); | |
| 122 exit(1); | |
| 123 } | |
| 124 | |
| 8 | 125 if (argc == 1 && *argv[0] != '-') { |
| 126 if ((in = fopen(argv[0], "rb")) == NULL) { | |
| 127 fprintf(stderr, "%s: unable to open input file %s\n", progname, argv[0]); | |
| 128 exit(1); | |
| 129 } | |
| 130 else | |
| 131 strcpy(input_name, argv[0]); | |
| 3 | 132 } |
| 133 | |
| 134 if (sig) { | |
| 135 char line[32]; | |
| 136 fgets(line, sizeof(line), sig); | |
| 137 if (strspn(line, "KD3SG") >= 5) { | |
| 138 if (n == 0) | |
| 139 fscanf(sig, "%d\n", &n); | |
| 140 else | |
| 141 fscanf(sig, "%*d\n"); | |
| 142 if (q == 0) | |
| 143 fscanf(sig, "%d\n", &q); | |
| 144 else | |
| 145 fscanf(sig, "%*d\n"); | |
| 146 if (e < 0) | |
| 147 fscanf(sig, "%d\n", &e); | |
| 148 else | |
| 149 fscanf(sig, "%*d\n"); | |
| 150 if (f == 0) | |
| 151 fscanf(sig, "%d\n", &f); | |
| 152 else | |
| 153 fscanf(sig, "%*d\n"); | |
| 154 if (!strcmp(F, "")) | |
| 15 | 155 fscanf(sig, "%[^\n\r]\n", F); |
| 3 | 156 else |
| 157 fscanf(sig, "%*[^\n\r]\n"); | |
| 158 if (l == 0) | |
| 159 fscanf(sig, "%d\n", &l); | |
| 160 else | |
| 161 fscanf(sig, "%*d\n"); | |
| 162 } | |
| 163 else { | |
| 164 fprintf(stderr, "%s: invalid signature file %s\n", progname, signature_name); | |
| 165 exit(1); | |
| 166 } | |
| 8 | 167 fclose(sig); |
| 3 | 168 } |
| 169 | |
| 170 if (s) | |
| 171 srandom(s); | |
| 172 else | |
| 173 srandom(time(NULL) * getpid()); | |
| 174 | |
| 175 if (n > 0) { | |
| 176 n_signature = fread(signature, sizeof(char), i = NBITSTOBYTES(n), in); | |
| 177 if (n_signature < i) { | |
| 178 fprintf(stderr, "%s: failed to read all %d signature bits from %s\n", progname, n, input_name); | |
| 179 exit(1); | |
| 180 } | |
| 181 } | |
| 182 else { | |
| 183 if (fscanf(in, "%128[^\n\r]", signature) == EOF) { | |
| 184 fprintf(stderr, "%s: failed to read signature bits from %s\n", progname, input_name); | |
| 185 exit(1); | |
| 186 } | |
| 187 n_signature = strlen(signature); | |
|
7
2b350281f8b0
fix number of bits written
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
3
diff
changeset
|
188 n = nbit_signature = NBYTESTOBITS(n_signature); |
| 3 | 189 fprintf(stderr, "%s: got %d signature bits\n", progname, nbit_signature); |
| 190 } | |
| 191 | |
| 192 fprintf(out, "KD3SG\n"); | |
| 193 fprintf(out, "%d\n", n); | |
| 194 fprintf(out, "%d\n", q); | |
| 195 fprintf(out, "%d\n", e); | |
| 196 fprintf(out, "%d\n", f); | |
| 197 fprintf(out, "%s\n", F); | |
| 198 fprintf(out, "%d\n", l); | |
| 8 | 199 fprintf(out, "%ld\n", random()); |
| 3 | 200 nbit_signature = NBYTESTOBITS(n_signature); |
| 201 binstr = malloc((nbit_signature + 1) * sizeof(char)); | |
| 202 sig_to_binstr(binstr); | |
| 203 fprintf(out, "%s\n", binstr); | |
| 204 free(binstr); | |
| 205 | |
| 206 fclose(out); | |
| 207 | |
| 208 exit(0); | |
| 209 } |