Mercurial > hg > wm
annotate Meerwald/gen_bruyn_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 | 4987db85cfae |
| children |
| rev | line source |
|---|---|
| 0 | 1 #include "wm.h" |
| 2 #include "signature.h" | |
| 3 #include "bruyn_common.h" | |
| 4 | |
| 5 char *progname; | |
| 6 | |
| 7 void usage(void) { | |
| 8 fprintf(stderr, "usage: %s [-b n] [-k] [-n n] [-o file] [-pP n] [-q n] [-s file] [-S n] [-tT n] file\n\n", progname); | |
| 9 fprintf(stderr, "\t-b n\t\tblock size (default 8)\n"); | |
| 10 fprintf(stderr, "\t-h\t\tprint usage\n"); | |
| 11 fprintf(stderr, "\t-k\t\tdisable block skipping\n"); | |
| 12 fprintf(stderr, "\t-n n\t\twatermark bit length\n"); | |
| 13 fprintf(stderr, "\t-o file\t\toutput file\n"); | |
| 14 fprintf(stderr, "\t-p n\t\tpattern type for zone 1 (default 1, 1.." NPATTERN_USAGE ")\n"); | |
| 15 fprintf(stderr, "\t-P n\t\tpattern type for zone 2 (default 2, 1.." NPATTERN_USAGE ")\n"); | |
| 16 fprintf(stderr, "\t-q n\t\tsignature strength (default 7.0)\n"); | |
| 17 fprintf(stderr, "\t-s file\t\tuse signature file's embedding information\n"); | |
| 18 fprintf(stderr, "\t-S n\t\tseed\n"); | |
| 19 fprintf(stderr, "\t-t n\t\tthreshold for noise (default " THRESHOLD_NOISE_USAGE ")\n"); | |
| 20 fprintf(stderr, "\t-T n\t\tthreshold for slope (default " THRESHOLD_SLOPE_USAGE ")\n"); | |
| 21 exit(0); | |
| 22 } | |
| 23 | |
| 24 int main(int argc, char *argv[]) { | |
| 25 FILE *in = stdin; | |
| 26 FILE *out = stdout; | |
| 27 FILE *sig = NULL; | |
| 28 | |
| 29 char output_name[MAXPATHLEN] = "(stdout)"; | |
| 30 char input_name[MAXPATHLEN] = "(stdin)"; | |
| 31 char signature_name[MAXPATHLEN]; | |
| 32 | |
| 33 int c; | |
| 34 int i; | |
| 35 int b = 8; | |
| 36 int n = 0; | |
| 37 int nb; | |
| 38 int s = 0; | |
| 39 int p1 = 1; | |
| 40 int p2 = 2; | |
| 41 double t1 = THRESHOLD_NOISE; | |
| 42 double t2 = THRESHOLD_SLOPE; | |
| 43 double q = 7.0; | |
| 44 int skipping = 0; | |
| 45 | |
| 46 progname = argv[0]; | |
| 47 wm_init(); | |
| 48 | |
| 49 while ((c = getopt(argc, argv, "b:h?n:o:p:P:q:s:S:t:T:k")) != EOF) { | |
| 50 switch (c) { | |
| 51 case 'b': | |
| 52 b = atoi(optarg); | |
| 53 if (b <= 0) { | |
| 54 fprintf(stderr, "%s: block size %d out of range\n", progname, b); | |
| 55 exit(1); | |
| 56 } | |
| 57 break; | |
| 58 case 'k': | |
| 59 skipping = 1; | |
| 60 break; | |
| 61 case 'h': | |
| 62 case '?': | |
| 63 usage(); | |
| 64 break; | |
| 65 case 'n': | |
| 66 n = atoi(optarg); | |
| 67 if (n < 1 || n > 1000) { | |
| 68 fprintf(stderr, "%s: watermark length %d out of range\n", progname, n); | |
| 69 exit(1); | |
| 70 } | |
| 71 break; | |
| 72 case 'o': | |
| 73 if ((out = fopen(optarg, "wb")) == NULL) { | |
| 74 fprintf(stderr, "%s: unable to open output file %s\n", progname, optarg); | |
| 75 exit(1); | |
| 76 } | |
| 77 strcpy(output_name, optarg); | |
| 78 break; | |
| 79 case 'p': | |
| 80 p1 = atoi(optarg); | |
| 81 if (p1 <= 0 || p1 > NPATTERN) { | |
| 82 fprintf(stderr, "%s: pattern type out of range\n", progname); | |
| 83 exit(1); | |
| 84 } | |
| 85 break; | |
| 86 case 'P': | |
| 87 p2 = atoi(optarg); | |
| 88 if (p2 <= 0 || p2 > NPATTERN) { | |
| 89 fprintf(stderr, "%s: pattern type out of range\n", progname); | |
| 90 exit(1); | |
| 91 } | |
| 92 break; | |
| 93 case 'q': | |
| 94 q = atof(optarg); | |
| 95 if (q <= 0.0) { | |
| 96 fprintf(stderr, "%s: signature strength factor %f out of range\n", progname, q); | |
| 97 exit(1); | |
| 98 } | |
| 99 break; | |
| 100 case 't': | |
| 101 t1 = atof(optarg); | |
| 102 if (t1 <= 0) { | |
| 103 fprintf(stderr, "%s: noise threshold %f out of range\n", progname, t1); | |
| 104 } | |
| 105 break; | |
| 106 case 'T': | |
| 107 t2 = atof(optarg); | |
| 108 if (t2 <= 0) { | |
| 109 fprintf(stderr, "%s: slope threshold %f out of range\n", progname, t2); | |
| 110 } | |
| 111 break; | |
| 112 case 's': | |
| 113 if ((sig = fopen(optarg, "r")) == NULL) { | |
| 114 fprintf(stderr, "%s: unable to open signature file %s\n", progname, optarg); | |
| 115 exit(1); | |
| 116 } | |
| 117 strcpy(signature_name, optarg); | |
| 118 break; | |
| 119 case 'S': | |
| 120 s = atoi(optarg); | |
| 121 break; | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 argc -= optind; | |
| 126 argv += optind; | |
| 127 | |
| 128 if (argc > 1) { | |
| 129 usage(); | |
| 130 exit(1); | |
| 131 } | |
| 132 | |
| 133 if (b % 2 > 0 || b <= 2) { | |
| 8 | 134 fprintf(stderr, "%s: block size has to be even and greater than 2\n", progname); |
| 0 | 135 exit(1); |
| 136 } | |
| 137 | |
| 8 | 138 if (argc == 1 && *argv[0] != '-') { |
| 0 | 139 if ((in = fopen(argv[0], "rb")) == NULL) { |
| 140 fprintf(stderr, "%s: unable to open input file %s\n", progname, argv[0]); | |
| 141 exit(1); | |
| 142 } | |
| 143 else | |
| 144 strcpy(input_name, argv[0]); | |
| 8 | 145 } |
| 0 | 146 |
| 147 // read signature file and set options | |
| 148 // command line options override signature file options | |
| 149 if (sig) { | |
| 150 char line[128]; | |
| 151 fgets(line, sizeof(line), sig); | |
| 152 if (strspn(line, "BRSG") >= 4) { | |
| 153 if (n == 0) | |
| 154 fscanf(sig, "%d\n", &n); | |
| 155 else | |
| 156 fscanf(sig, "%*d\n"); | |
| 157 if (skipping == 0) | |
| 158 fscanf(sig, "%d\n", &skipping); | |
| 159 else | |
| 160 fscanf(sig, "%*d\n"); | |
| 161 if (p1 == 0) | |
| 162 fscanf(sig, "%d\n", &p1); | |
| 163 else | |
| 164 fscanf(sig, "%*d\n"); | |
| 165 if (p2 == 0) | |
| 166 fscanf(sig, "%d\n", &p2); | |
| 167 else | |
| 168 fscanf(sig, "%*d\n"); | |
| 169 if (q == 0.0) | |
| 170 fscanf(sig, "%lf\n", &q); | |
| 171 else | |
|
16
4987db85cfae
fix another scanf() warning
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
8
diff
changeset
|
172 fscanf(sig, "%*f\n"); |
| 0 | 173 if (t1 == 0.0) |
| 174 fscanf(sig, "%lf\n", &t1); | |
| 175 else | |
|
16
4987db85cfae
fix another scanf() warning
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
8
diff
changeset
|
176 fscanf(sig, "%*f\n"); |
| 0 | 177 if (t2 == 0.0) |
| 178 fscanf(sig, "%lf\n", &t2); | |
| 179 else | |
|
16
4987db85cfae
fix another scanf() warning
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
8
diff
changeset
|
180 fscanf(sig, "%*f\n"); |
| 0 | 181 if (b == 0) |
| 182 fscanf(sig, "%d\n", &b); | |
| 183 else | |
| 184 fscanf(sig, "%*d\n"); | |
| 185 } | |
| 186 else { | |
| 187 fprintf(stderr, "%s: invalid signature file %s\n", progname, signature_name); | |
| 188 exit(1); | |
| 189 } | |
| 190 fclose(sig); | |
| 191 } | |
| 192 | |
| 193 if (s) | |
| 194 srandom(s); | |
| 195 else | |
| 196 srandom(time(NULL) * getpid()); | |
| 197 | |
| 198 if (n > 0) { | |
| 199 nb = fread(signature, sizeof(char), i = NBITSTOBYTES(n), in); | |
| 200 if (nb < i) { | |
| 201 fprintf(stderr, "%s: failed to read all %d signature bits from %s\n", progname, n, input_name); | |
| 202 exit(1); | |
| 203 } | |
| 204 } | |
| 205 else { | |
| 206 if (fscanf(in, "%128[^\n\r]", signature) == EOF) { | |
| 207 fprintf(stderr, "%s: failed to read signature bits from %s\n", progname, input_name); | |
| 208 exit(1); | |
| 209 } | |
| 210 nb = strlen(signature); | |
| 211 n = NBYTESTOBITS(nb); | |
| 212 fprintf(stderr, "%s: got %d signature bits\n", progname, n); | |
| 213 } | |
| 214 | |
| 215 | |
| 216 fprintf(out, "BRSG\n"); | |
| 217 fprintf(out, "%d\n", n); | |
| 218 fprintf(out, "%d\n", skipping); | |
| 219 fprintf(out, "%d\n", p1); | |
| 220 fprintf(out, "%d\n", p2); | |
| 221 fprintf(out, "%f\n", q); | |
| 222 fprintf(out, "%f\n", t1); | |
| 223 fprintf(out, "%f\n", t2); | |
| 224 fprintf(out, "%d\n", b); | |
| 8 | 225 fprintf(out, "%ld\n", random()); |
| 0 | 226 fwrite(signature, sizeof(char), nb, out); |
| 227 fprintf(out, "\n"); | |
| 228 | |
| 229 fclose(out); | |
| 230 | |
| 231 exit(0); | |
| 232 } |