libs/ptformat/ptfformat.cc

   1 /*
   2     Copyright (C) 2015  Damien Zammit
   3     Copyright (C) 2015  Robin Gareus
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 3 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15 */
  16
  17 #include "ptfformat.h"
  18
  19 #include <stdio.h>
  20 #include <string>
  21 #include <string.h>
  22 #include <assert.h>
  23
  24 using namespace std;
  25
  26 static const uint32_t baselut[16] = {
  27         0xaaaaaaaa, 0xaa955555, 0xa9554aaa, 0xa552a955,
  28         0xb56ad5aa, 0x95a95a95, 0x94a5294a, 0x9696b4b5,
  29         0xd2d25a5a, 0xd24b6d25, 0xdb6db6da, 0xd9249b6d,
  30         0xc9b64d92, 0xcd93264d, 0xccd99b32, 0xcccccccd
  31 };
  32
  33 static const uint32_t xorlut[16] = {
  34         0x00000000, 0x00000b00, 0x000100b0, 0x00b0b010,
  35         0x010b0b01, 0x0b10b10b, 0x01bb101b, 0x0111bbbb,
  36         0x1111bbbb, 0x1bbb10bb, 0x1bb0bb0b, 0xbb0b0bab,
  37         0xbab0b0ba, 0xb0abaaba, 0xba0aabaa, 0xbaaaaaaa
  38 };
  39
  40 static uint32_t swapbytes32 (const uint32_t v) {
  41         uint32_t rv = 0;
  42         rv |= ((v >>  0) & 0xf) << 28;
  43         rv |= ((v >>  4) & 0xf) << 24;
  44         rv |= ((v >>  8) & 0xf) << 20;
  45         rv |= ((v >> 12) & 0xf) << 16;
  46         rv |= ((v >> 16) & 0xf) << 12;
  47         rv |= ((v >> 20) & 0xf) <<  8;
  48         rv |= ((v >> 24) & 0xf) <<  4;
  49         rv |= ((v >> 28) & 0xf) <<  0;
  50         return rv;
  51 }
  52
  53 static uint64_t gen_secret (int i) {
  54         assert (i > 0 && i < 256);
  55         int iwrap = i & 0x7f; // wrap at 0x80;
  56         uint32_t xor_lo = 0;  // 0x40 flag
  57         int idx;              // mirror at 0x40;
  58
  59         if (iwrap & 0x40) {
  60                 xor_lo = 0x1;
  61                 idx    = 0x80 - iwrap;
  62         } else {
  63                 idx    = iwrap;
  64         }
  65
  66         int i16 = (idx >> 1) & 0xf;
  67         if (idx & 0x20) {
  68                 i16 = 15 - i16;
  69         }
  70
  71         uint32_t lo = baselut [i16];
  72         uint32_t xk = xorlut  [i16];
  73
  74         if (idx & 0x20) {
  75                 lo ^= 0xaaaaaaab;
  76                 xk ^= 0x10000000;
  77         }
  78         uint32_t hi = swapbytes32 (lo) ^ xk;
  79         return  ((uint64_t)hi << 32) | (lo ^ xor_lo);
  80 }
  81
  82 PTFFormat::PTFFormat() {
  83 }
  84
  85 PTFFormat::~PTFFormat() {
  86         if (ptfunxored) {
  87                 free(ptfunxored);
  88         }
  89 }
  90
  91 bool
  92 PTFFormat::foundin(std::string haystack, std::string needle) {
  93         size_t found = haystack.find(needle);
  94         if (found != std::string::npos) {
  95                 return true;
  96         } else {
  97                 return false;
  98         }
  99 }
 100
 101 /* Return values:       0            success
 102                         0x01 to 0xff value of missing lut
 103                         -1           could not open file as ptf
 104 */
 105 int
 106 PTFFormat::load(std::string path, int64_t targetsr) {
 107         FILE *fp;
 108         unsigned char xxor[256];
 109         unsigned char ct;
 110         unsigned char v;
 111         unsigned char voff;
 112         uint64_t key;
 113         uint64_t i;
 114         uint64_t j;
 115         int inv;
 116
 117         if (! (fp = fopen(path.c_str(), "rb"))) {
 118                 return -1;
 119         }
 120
 121         fseek(fp, 0, SEEK_END);
 122         len = ftell(fp);
 123         if (len < 0x40) {
 124                 fclose(fp);
 125                 return -1;
 126         }
 127         fseek(fp, 0x40, SEEK_SET);
 128         fread(&c0, 1, 1, fp);
 129         fread(&c1, 1, 1, fp);
 130
 131         // For version <= 7 support:
 132         version = c0 & 0x0f;
 133         c0 = c0 & 0xc0;
 134
 135         if (! (ptfunxored = (unsigned char*) malloc(len * sizeof(unsigned char)))) {
 136                 /* Silently fail -- out of memory*/
 137                 fclose(fp);
 138                 ptfunxored = 0;
 139                 return -1;
 140         }
 141
 142         switch (c0) {
 143         case 0x00:
 144                 // Success! easy one
 145                 xxor[0] = c0;
 146                 xxor[1] = c1;
 147                 //fprintf(stderr, "0 %02x\n1 %02x\n", c0, c1);
 148
 149                 for (i = 2; i < 256; i++) {
 150                         if (i%64 == 0) {
 151                                 xxor[i] = c0;
 152                         } else {
 153                                 xxor[i] = (xxor[i-1] + c1 - c0) & 0xff;
 154                                 //fprintf(stderr, "%x %02x\n", i, xxor[i]);
 155                         }
 156                 }
 157                 break;
 158         case 0x80:
 159                 //Success! easy two
 160                 xxor[0] = c0;
 161                 xxor[1] = c1;
 162                 for (i = 2; i < 256; i++) {
 163                         if (i%64 == 0) {
 164                                 xxor[i] = c0;
 165                         } else {
 166                                 xxor[i] = ((xxor[i-1] + c1 - c0) & 0xff);
 167                         }
 168                 }
 169                 for (i = 0; i < 64; i++) {
 170                         xxor[i] ^= 0x80;
 171                 }
 172                 for (i = 128; i < 192; i++) {
 173                         xxor[i] ^= 0x80;
 174                 }
 175                 break;
 176         case 0x40:
 177         case 0xc0:
 178                 xxor[0] = c0;
 179                 xxor[1] = c1;
 180                 for (i = 2; i < 256; i++) {
 181                         if (i%64 == 0) {
 182                                 xxor[i] = c0;
 183                         } else {
 184                                 xxor[i] = ((xxor[i-1] + c1 - c0) & 0xff);
 185                         }
 186                 }
 187
 188                 key = gen_secret(c1);
 189
 190                 for (i = 0; i < 64; i++) {
 191                         xxor[i] ^= (((key >> i) & 1) * 2 * 0x40) + 0x40;
 192                 }
 193                 for (i = 128; i < 192; i++) {
 194                         inv = (((key >> (i-128)) & 1) == 1) ? 1 : 3;
 195                         xxor[i] ^= (inv * 0x40);
 196                 }
 197
 198                 for (i = 192; i < 256; i++) {
 199                         xxor[i] ^= 0x80;
 200                 }
 201                 break;
 202                 break;
 203         default:
 204                 //Should not happen, failed c[0] c[1]
 205                 return -1;
 206                 break;
 207         }
 208
 209         /* Read file */
 210         i = 0;
 211         fseek(fp, 0, SEEK_SET);
 212         while (fread(&ct, 1, 1, fp) != 0) {
 213                 ptfunxored[i++] = ct;
 214         }
 215         fclose(fp);
 216
 217         /* version detection */
 218         voff = 0x36;
 219         v = ptfunxored[voff];
 220         if (v == 0x20) {
 221                 voff += 7;
 222         } else if (v == 0x03) {
 223                 voff += 4;
 224         } else {
 225                 voff = 0;
 226         }
 227         v = ptfunxored[voff];
 228         if (v == 10 || v == 11 || v == 12) {
 229                 version = v;
 230                 unxor10();
 231         }
 232
 233         if (version == 0 || version == 5 || version == 7) {
 234                 /* Haven't detected version yet so decipher */
 235                 j = 0;
 236                 for (i = 0; i < len; i++) {
 237                         if (j%256 == 0) {
 238                                 j = 0;
 239                         }
 240                         ptfunxored[i] ^= xxor[j];
 241                         j++;
 242                 }
 243
 244                 /* version detection */
 245                 voff = 0x36;
 246                 v = ptfunxored[voff];
 247                 if (v == 0x20) {
 248                         voff += 7;
 249                 } else if (v == 0x03) {
 250                         voff += 4;
 251                 } else {
 252                         voff = 0;
 253                 }
 254                 v = ptfunxored[voff];
 255                 if (v == 5 || v == 7 || v == 8 || v == 9) {
 256                         version = v;
 257                 }
 258         }
 259
 260         targetrate = targetsr;
 261         parse();
 262         return 0;
 263 }
 264
 265 uint8_t
 266 PTFFormat::mostfrequent(uint32_t start, uint32_t stop)
 267 {
 268         uint32_t counts[256] = {0};
 269         uint64_t i;
 270         uint32_t max = 0;
 271         uint8_t maxi = 0;
 272
 273         for (i = start; i < stop; i++) {
 274                 counts[ptfunxored[i]]++;
 275         }
 276
 277         for (i = 0; i < 256; i++) {
 278                 if (counts[i] > max) {
 279                         maxi = i;
 280                         max = counts[i];
 281                 }
 282         }
 283         return maxi;
 284 }
 285
 286 void
 287 PTFFormat::unxor10(void)
 288 {
 289         uint64_t j;
 290         uint8_t x = mostfrequent(0x1000, 0x2000);
 291         uint8_t dx = 0x100-x;
 292
 293         for (j = 0x1000; j < len; j++) {
 294                 if(j % 0x1000 == 0xfff) {
 295                         x = (x - dx) & 0xff;
 296                 }
 297                 ptfunxored[j] ^= x;
 298         }
 299 }
 300
 301 void
 302 PTFFormat::parse(void) {
 303         if (version == 5) {
 304                 parse5header();
 305                 setrates();
 306                 parseaudio5();
 307                 parserest5();
 308         } else if (version == 7) {
 309                 parse7header();
 310                 setrates();
 311                 parseaudio();
 312                 parserest89();
 313         } else if (version == 8) {
 314                 parse8header();
 315                 setrates();
 316                 parseaudio();
 317                 parserest89();
 318         } else if (version == 9) {
 319                 parse9header();
 320                 setrates();
 321                 parseaudio();
 322                 parserest89();
 323         } else if (version == 10 || version == 11 || version == 12) {
 324                 parse10header();
 325                 setrates();
 326                 parseaudio();
 327                 parserest10();
 328         } else {
 329                 // Should not occur
 330         }
 331 }
 332
 333 void
 334 PTFFormat::setrates(void) {
 335         ratefactor = 1.f;
 336         if (sessionrate != 0) {
 337                 ratefactor = (float)targetrate / sessionrate;
 338         }
 339 }
 340
 341 void
 342 PTFFormat::parse5header(void) {
 343         uint32_t k;
 344
 345         // Find session sample rate
 346         k = 0x100;
 347         while (k < len) {
 348                 if (            (ptfunxored[k  ] == 0x5a) &&
 349                                 (ptfunxored[k+1] == 0x00) &&
 350                                 (ptfunxored[k+2] == 0x02)) {
 351                         break;
 352                 }
 353                 k++;
 354         }
 355
 356         sessionrate = 0;
 357         sessionrate |= ptfunxored[k+12] << 16;
 358         sessionrate |= ptfunxored[k+13] << 8;
 359         sessionrate |= ptfunxored[k+14];
 360 }
 361
 362 void
 363 PTFFormat::parse7header(void) {
 364         uint64_t k;
 365
 366         // Find session sample rate
 367         k = 0x100;
 368         while (k < len) {
 369                 if (            (ptfunxored[k  ] == 0x5a) &&
 370                                 (ptfunxored[k+1] == 0x00) &&
 371                                 (ptfunxored[k+2] == 0x05)) {
 372                         break;
 373                 }
 374                 k++;
 375         }
 376
 377         sessionrate = 0;
 378         sessionrate |= ptfunxored[k+12] << 16;
 379         sessionrate |= ptfunxored[k+13] << 8;
 380         sessionrate |= ptfunxored[k+14];
 381 }
 382
 383 void
 384 PTFFormat::parse8header(void) {
 385         uint64_t k;
 386
 387         // Find session sample rate
 388         k = 0;
 389         while (k < len) {
 390                 if (            (ptfunxored[k  ] == 0x5a) &&
 391                                 (ptfunxored[k+1] == 0x05)) {
 392                         break;
 393                 }
 394                 k++;
 395         }
 396
 397         sessionrate = 0;
 398         sessionrate |= ptfunxored[k+11];
 399         sessionrate |= ptfunxored[k+12] << 8;
 400         sessionrate |= ptfunxored[k+13] << 16;
 401 }
 402
 403 void
 404 PTFFormat::parse9header(void) {
 405         uint64_t k;
 406
 407         // Find session sample rate
 408         k = 0x100;
 409         while (k < len) {
 410                 if (            (ptfunxored[k  ] == 0x5a) &&
 411                                 (ptfunxored[k+1] == 0x06)) {
 412                         break;
 413                 }
 414                 k++;
 415         }
 416
 417         sessionrate = 0;
 418         sessionrate |= ptfunxored[k+11];
 419         sessionrate |= ptfunxored[k+12] << 8;
 420         sessionrate |= ptfunxored[k+13] << 16;
 421 }
 422
 423 void
 424 PTFFormat::parse10header(void) {
 425         uint64_t k;
 426
 427         // Find session sample rate
 428         k = 0x100;
 429         while (k < len) {
 430                 if (            (ptfunxored[k  ] == 0x5a) &&
 431                                 (ptfunxored[k+1] == 0x09)) {
 432                         break;
 433                 }
 434                 k++;
 435         }
 436
 437         sessionrate = 0;
 438         sessionrate |= ptfunxored[k+11];
 439         sessionrate |= ptfunxored[k+12] << 8;
 440         sessionrate |= ptfunxored[k+13] << 16;
 441 }
 442
 443 void
 444 PTFFormat::parserest5(void) {
 445         uint64_t i, j, k;
 446         uint64_t regionspertrack, lengthofname;
 447         uint64_t startbytes, lengthbytes, offsetbytes;
 448         uint16_t tracknumber = 0;
 449         uint16_t findex;
 450         uint16_t rindex;
 451
 452         k = 0;
 453         for (i = 0; i < 5; i++) {
 454                 while (k < len) {
 455                         if (            (ptfunxored[k  ] == 0x5a) &&
 456                                         (ptfunxored[k+1] == 0x00) &&
 457                                         (ptfunxored[k+2] == 0x03)) {
 458                                 break;
 459                         }
 460                         k++;
 461                 }
 462                 k++;
 463         }
 464         k--;
 465
 466         for (i = 0; i < 2; i++) {
 467                 while (k) {
 468                         if (            (ptfunxored[k  ] == 0x5a) &&
 469                                         (ptfunxored[k+1] == 0x00) &&
 470                                         (ptfunxored[k+2] == 0x01)) {
 471                                 break;
 472                         }
 473                         k--;
 474                 }
 475                 if (k)
 476                         k--;
 477         }
 478         k++;
 479
 480         rindex = 0;
 481         while (k < len) {
 482                 if (            (ptfunxored[k  ] == 0xff) &&
 483                                 (ptfunxored[k+1] == 0xff)) {
 484                         break;
 485                 }
 486                 while (k < len) {
 487                         if (            (ptfunxored[k  ] == 0x5a) &&
 488                                         (ptfunxored[k+1] == 0x00) &&
 489                                         (ptfunxored[k+2] == 0x01)) {
 490                                 break;
 491                         }
 492                         k++;
 493                 }
 494
 495                 lengthofname = ptfunxored[k+12];
 496                 if (ptfunxored[k+13] == 0x5a) {
 497                         k++;
 498                         break;
 499                 }
 500                 char name[256] = {0};
 501                 for (j = 0; j < lengthofname; j++) {
 502                         name[j] = ptfunxored[k+13+j];
 503                 }
 504                 name[j] = '\0';
 505                 regionspertrack = ptfunxored[k+13+j+3];
 506                 for (i = 0; i < regionspertrack; i++) {
 507                         while (k < len) {
 508                                 if (            (ptfunxored[k  ] == 0x5a) &&
 509                                                 (ptfunxored[k+1] == 0x00) &&
 510                                                 (ptfunxored[k+2] == 0x03)) {
 511                                         break;
 512                                 }
 513                                 k++;
 514                         }
 515                         j = k+16;
 516                         startbytes = (ptfunxored[j+3] & 0xf0) >> 4;
 517                         lengthbytes = (ptfunxored[j+2] & 0xf0) >> 4;
 518                         offsetbytes = (ptfunxored[j+1] & 0xf0) >> 4;
 519                         //somethingbytes = (ptfunxored[j+1] & 0xf);
 520                         findex = ptfunxored[k+14];
 521                         j--;
 522                         uint32_t start = 0;
 523                         switch (startbytes) {
 524                         case 4:
 525                                 start |= (uint32_t)(ptfunxored[j+8] << 24);
 526                         case 3:
 527                                 start |= (uint32_t)(ptfunxored[j+7] << 16);
 528                         case 2:
 529                                 start |= (uint32_t)(ptfunxored[j+6] << 8);
 530                         case 1:
 531                                 start |= (uint32_t)(ptfunxored[j+5]);
 532                         default:
 533                                 break;
 534                         }
 535                         j+=startbytes;
 536                         uint32_t length = 0;
 537                         switch (lengthbytes) {
 538                         case 4:
 539                                 length |= (uint32_t)(ptfunxored[j+8] << 24);
 540                         case 3:
 541                                 length |= (uint32_t)(ptfunxored[j+7] << 16);
 542                         case 2:
 543                                 length |= (uint32_t)(ptfunxored[j+6] << 8);
 544                         case 1:
 545                                 length |= (uint32_t)(ptfunxored[j+5]);
 546                         default:
 547                                 break;
 548                         }
 549                         j+=lengthbytes;
 550                         uint32_t sampleoffset = 0;
 551                         switch (offsetbytes) {
 552                         case 4:
 553                                 sampleoffset |= (uint32_t)(ptfunxored[j+8] << 24);
 554                         case 3:
 555                                 sampleoffset |= (uint32_t)(ptfunxored[j+7] << 16);
 556                         case 2:
 557                                 sampleoffset |= (uint32_t)(ptfunxored[j+6] << 8);
 558                         case 1:
 559                                 sampleoffset |= (uint32_t)(ptfunxored[j+5]);
 560                         default:
 561                                 break;
 562                         }
 563                         j+=offsetbytes;
 564
 565                         //printf("name=`%s` start=%04x length=%04x offset=%04x findex=%d\n", name,start,length,sampleoffset,findex);
 566
 567                         std::string filename = string(name) + extension;
 568                         wav_t f = {
 569                                 filename,
 570                                 findex,
 571                                 (int64_t)(start*ratefactor),
 572                                 (int64_t)(length*ratefactor),
 573                         };
 574
 575                         vector<wav_t>::iterator begin = audiofiles.begin();
 576                         vector<wav_t>::iterator finish = audiofiles.end();
 577                         vector<wav_t>::iterator found;
 578                         // Add file to lists
 579                         if ((found = std::find(begin, finish, f)) != finish) {
 580                                 region_t r = {
 581                                         name,
 582                                         rindex,
 583                                         (int64_t)(start*ratefactor),
 584                                         (int64_t)(sampleoffset*ratefactor),
 585                                         (int64_t)(length*ratefactor),
 586                                         *found,
 587                                 };
 588                                 regions.push_back(r);
 589                                 vector<track_t>::iterator ti;
 590                                 vector<track_t>::iterator bt = tracks.begin();
 591                                 vector<track_t>::iterator et = tracks.end();
 592                                 track_t tr ( name, 0, 0, &r);
 593                                 if ((ti = std::find(bt, et, tr)) != et) {
 594                                         tracknumber = (*ti).index;
 595                                 } else {
 596                                         tracknumber = tracks.size() + 1;
 597                                 }
 598                                 track_t t ( name, (uint16_t)tracknumber, uint8_t(0), &r);
 599                                 tracks.push_back(t);
 600                         } else {
 601                                 region_t r = {
 602                                         name,
 603                                         rindex,
 604                                         (int64_t)(start*ratefactor),
 605                                         (int64_t)(sampleoffset*ratefactor),
 606                                         (int64_t)(length*ratefactor),
 607                                         f,
 608                                 };
 609                                 regions.push_back(r);
 610                                 vector<track_t>::iterator ti;
 611                                 vector<track_t>::iterator bt = tracks.begin();
 612                                 vector<track_t>::iterator et = tracks.end();
 613                                 track_t tr ( name, 0, 0, &r );
 614                                 if ((ti = std::find(bt, et, tr)) != et) {
 615                                         tracknumber = (*ti).index;
 616                                 } else {
 617                                         tracknumber = tracks.size() + 1;
 618                                 }
 619                                 track_t t ( name, (uint16_t)tracknumber, uint8_t(0), &r);
 620                                 tracks.push_back(t);
 621                         }
 622                         rindex++;
 623                         k++;
 624                 }
 625                 k++;
 626         }
 627 }
 628
 629 void
 630 PTFFormat::resort(std::vector<wav_t> *ws) {
 631         int j = 0;
 632         std::sort((*ws).begin(), (*ws).end());
 633         for (std::vector<wav_t>::iterator i = (*ws).begin();
 634                         i != (*ws).end(); ++i) {
 635                 (*i).index = j;
 636                 j++;
 637         }
 638 }
 639
 640 void
 641 PTFFormat::parseaudio5(void) {
 642         uint64_t i,k,l;
 643         uint64_t lengthofname, wavnumber;
 644
 645         // Find end of wav file list
 646         k = 0;
 647         while (k < len) {
 648                 if (            (ptfunxored[k  ] == 0x5f) &&
 649                                 (ptfunxored[k+1] == 0x50) &&
 650                                 (ptfunxored[k+2] == 0x35)) {
 651                         break;
 652                 }
 653                 k++;
 654         }
 655         k++;
 656         while (k < len) {
 657                 if (            (ptfunxored[k  ] == 0x5f) &&
 658                                 (ptfunxored[k+1] == 0x50) &&
 659                                 (ptfunxored[k+2] == 0x35)) {
 660                         break;
 661                 }
 662                 k++;
 663         }
 664
 665         // Find actual wav names
 666         uint16_t numberofwavs = ptfunxored[k-23];
 667         char wavname[256];
 668         for (i = k; i < len; i++) {
 669                 if (            (ptfunxored[i  ] == 'F') &&
 670                                 (ptfunxored[i+1] == 'i') &&
 671                                 (ptfunxored[i+2] == 'l') &&
 672                                 (ptfunxored[i+3] == 'e') &&
 673                                 (ptfunxored[i+4] == 's')) {
 674                         break;
 675                 }
 676         }
 677
 678         wavnumber = 0;
 679         i+=16;
 680         char ext[5];
 681         while (i < len && numberofwavs > 0) {
 682                 i++;
 683                 if (            (ptfunxored[i  ] == 0x5a) &&
 684                                 (ptfunxored[i+1] == 0x00) &&
 685                                 (ptfunxored[i+2] == 0x05)) {
 686                         break;
 687                 }
 688                 lengthofname = ptfunxored[i];
 689                 i++;
 690                 l = 0;
 691                 while (l < lengthofname) {
 692                         wavname[l] = ptfunxored[i+l];
 693                         l++;
 694                 }
 695                 i+=lengthofname;
 696                 ext[0] = ptfunxored[i++];
 697                 ext[1] = ptfunxored[i++];
 698                 ext[2] = ptfunxored[i++];
 699                 ext[3] = ptfunxored[i++];
 700                 ext[4] = '\0';
 701
 702                 wavname[l] = 0;
 703                 if (foundin(wavname, ".L") || foundin(wavname, ".R")) {
 704                         extension = string("");
 705                 } else if (foundin(wavname, ".wav") || foundin(ext, "WAVE")) {
 706                         extension = string(".wav");
 707                 } else if (foundin(wavname, ".aif") || foundin(ext, "AIFF")) {
 708                         extension = string(".aif");
 709                 } else {
 710                         extension = string("");
 711                 }
 712
 713                 std::string wave = string(wavname);
 714                 wav_t f = { wave, (uint16_t)(wavnumber++), 0, 0 };
 715
 716                 if (foundin(wave, string(".grp"))) {
 717                         continue;
 718                 }
 719
 720                 actualwavs.push_back(f);
 721                 audiofiles.push_back(f);
 722                 //printf("done\n");
 723                 numberofwavs--;
 724                 i += 7;
 725         }
 726         resort(&actualwavs);
 727         resort(&audiofiles);
 728 }
 729
 730 void
 731 PTFFormat::parseaudio(void) {
 732         uint64_t i,j,k,l;
 733
 734         // Find end of wav file list
 735         k = 0;
 736         while (k < len) {
 737                 if (            (ptfunxored[k  ] == 0xff) &&
 738                                 (ptfunxored[k+1] == 0xff) &&
 739                                 (ptfunxored[k+2] == 0xff) &&
 740                                 (ptfunxored[k+3] == 0xff)) {
 741                         break;
 742                 }
 743                 k++;
 744         }
 745
 746         // Find actual wav names
 747         bool first = true;
 748         uint16_t numberofwavs;
 749         char wavname[256];
 750         for (i = k; i > 4; i--) {
 751                 if (            ((ptfunxored[i  ] == 'W') || (ptfunxored[i  ] == 'A')) &&
 752                                 ((ptfunxored[i-1] == 'A') || (ptfunxored[i-1] == 'I')) &&
 753                                 ((ptfunxored[i-2] == 'V') || (ptfunxored[i-2] == 'F')) &&
 754                                 ((ptfunxored[i-3] == 'E') || (ptfunxored[i-3] == 'F'))) {
 755                         j = i-4;
 756                         l = 0;
 757                         while (ptfunxored[j] != '\0') {
 758                                 wavname[l] = ptfunxored[j];
 759                                 l++;
 760                                 j--;
 761                         }
 762                         wavname[l] = 0;
 763                         if (ptfunxored[i] == 'W') {
 764                                 extension = string(".wav");
 765                         } else {
 766                                 extension = string(".aif");
 767                         }
 768                         //uint8_t playlist = ptfunxored[j-8];
 769
 770                         if (first) {
 771                                 first = false;
 772                                 for (j = k; j > 4; j--) {
 773                                         if (    (ptfunxored[j  ] == 0x01) &&
 774                                                 (ptfunxored[j-1] == 0x5a)) {
 775
 776                                                 numberofwavs = 0;
 777                                                 numberofwavs |= (uint32_t)(ptfunxored[j-2] << 24);
 778                                                 numberofwavs |= (uint32_t)(ptfunxored[j-3] << 16);
 779                                                 numberofwavs |= (uint32_t)(ptfunxored[j-4] << 8);
 780                                                 numberofwavs |= (uint32_t)(ptfunxored[j-5]);
 781                                                 //printf("%d wavs\n", numberofwavs);
 782                                                 break;
 783                                         }
 784                                 k--;
 785                                 }
 786                         }
 787
 788                         std::string wave = string(wavname);
 789                         std::reverse(wave.begin(), wave.end());
 790                         wav_t f = { wave, (uint16_t)(numberofwavs - 1), 0, 0 };
 791
 792                         if (foundin(wave, string(".grp"))) {
 793                                 continue;
 794                         }
 795
 796                         actualwavs.push_back(f);
 797
 798                         numberofwavs--;
 799                         if (numberofwavs <= 0)
 800                                 break;
 801                 }
 802         }
 803 }
 804
 805 void
 806 PTFFormat::parserest89(void) {
 807         uint64_t i,j,k,l;
 808         // Find Regions
 809         uint8_t startbytes = 0;
 810         uint8_t lengthbytes = 0;
 811         uint8_t offsetbytes = 0;
 812         uint8_t somethingbytes = 0;
 813         uint8_t skipbytes = 0;
 814
 815         k = 0;
 816         while (k < len) {
 817                 if (            (ptfunxored[k  ] == 'S') &&
 818                                 (ptfunxored[k+1] == 'n') &&
 819                                 (ptfunxored[k+2] == 'a') &&
 820                                 (ptfunxored[k+3] == 'p')) {
 821                         break;
 822                 }
 823                 k++;
 824         }
 825         uint16_t rindex = 0;
 826         uint32_t findex = 0;
 827         for (i = k; i < len-70; i++) {
 828                 if (            (ptfunxored[i  ] == 0x5a) &&
 829                                 (ptfunxored[i+1] == 0x0a)) {
 830                                 break;
 831                 }
 832                 if (            (ptfunxored[i  ] == 0x5a) &&
 833                                 (ptfunxored[i+1] == 0x0c)) {
 834
 835                         uint8_t lengthofname = ptfunxored[i+9];
 836
 837                         char name[256] = {0};
 838                         for (j = 0; j < lengthofname; j++) {
 839                                 name[j] = ptfunxored[i+13+j];
 840                         }
 841                         name[j] = '\0';
 842                         j += i+13;
 843                         //uint8_t disabled = ptfunxored[j];
 844
 845                         offsetbytes = (ptfunxored[j+1] & 0xf0) >> 4;
 846                         lengthbytes = (ptfunxored[j+2] & 0xf0) >> 4;
 847                         startbytes = (ptfunxored[j+3] & 0xf0) >> 4;
 848                         somethingbytes = (ptfunxored[j+3] & 0xf);
 849                         skipbytes = ptfunxored[j+4];
 850                         findex = ptfunxored[j+5
 851                                         +startbytes
 852                                         +lengthbytes
 853                                         +offsetbytes
 854                                         +somethingbytes
 855                                         +skipbytes
 856                                         +40];
 857                         /*rindex = ptfunxored[j+5
 858                                         +startbytes
 859                                         +lengthbytes
 860                                         +offsetbytes
 861                                         +somethingbytes
 862                                         +skipbytes
 863                                         +24];
 864                         */
 865                         uint32_t sampleoffset = 0;
 866                         switch (offsetbytes) {
 867                         case 4:
 868                                 sampleoffset |= (uint32_t)(ptfunxored[j+8] << 24);
 869                         case 3:
 870                                 sampleoffset |= (uint32_t)(ptfunxored[j+7] << 16);
 871                         case 2:
 872                                 sampleoffset |= (uint32_t)(ptfunxored[j+6] << 8);
 873                         case 1:
 874                                 sampleoffset |= (uint32_t)(ptfunxored[j+5]);
 875                         default:
 876                                 break;
 877                         }
 878                         j+=offsetbytes;
 879                         uint32_t length = 0;
 880                         switch (lengthbytes) {
 881                         case 4:
 882                                 length |= (uint32_t)(ptfunxored[j+8] << 24);
 883                         case 3:
 884                                 length |= (uint32_t)(ptfunxored[j+7] << 16);
 885                         case 2:
 886                                 length |= (uint32_t)(ptfunxored[j+6] << 8);
 887                         case 1:
 888                                 length |= (uint32_t)(ptfunxored[j+5]);
 889                         default:
 890                                 break;
 891                         }
 892                         j+=lengthbytes;
 893                         uint32_t start = 0;
 894                         switch (startbytes) {
 895                         case 4:
 896                                 start |= (uint32_t)(ptfunxored[j+8] << 24);
 897                         case 3:
 898                                 start |= (uint32_t)(ptfunxored[j+7] << 16);
 899                         case 2:
 900                                 start |= (uint32_t)(ptfunxored[j+6] << 8);
 901                         case 1:
 902                                 start |= (uint32_t)(ptfunxored[j+5]);
 903                         default:
 904                                 break;
 905                         }
 906                         j+=startbytes;
 907                         /*
 908                         uint32_t something = 0;
 909                         switch (somethingbytes) {
 910                         case 4:
 911                                 something |= (uint32_t)(ptfunxored[j+8] << 24);
 912                         case 3:
 913                                 something |= (uint32_t)(ptfunxored[j+7] << 16);
 914                         case 2:
 915                                 something |= (uint32_t)(ptfunxored[j+6] << 8);
 916                         case 1:
 917                                 something |= (uint32_t)(ptfunxored[j+5]);
 918                         default:
 919                                 break;
 920                         }
 921                         j+=somethingbytes;
 922                         */
 923                         std::string filename = string(name) + extension;
 924                         wav_t f = {
 925                                 filename,
 926                                 0,
 927                                 (int64_t)(start*ratefactor),
 928                                 (int64_t)(length*ratefactor),
 929                         };
 930
 931                         f.index = findex;
 932                         //printf("something=%d\n", something);
 933
 934                         vector<wav_t>::iterator begin = actualwavs.begin();
 935                         vector<wav_t>::iterator finish = actualwavs.end();
 936                         vector<wav_t>::iterator found;
 937                         // Add file to list only if it is an actual wav
 938                         if ((found = std::find(begin, finish, f)) != finish) {
 939                                 audiofiles.push_back(f);
 940                                 // Also add plain wav as region
 941                                 region_t r = {
 942                                         name,
 943                                         rindex,
 944                                         (int64_t)(start*ratefactor),
 945                                         (int64_t)(sampleoffset*ratefactor),
 946                                         (int64_t)(length*ratefactor),
 947                                         f
 948                                 };
 949                                 regions.push_back(r);
 950                         // Region only
 951                         } else {
 952                                 if (foundin(filename, string(".grp"))) {
 953                                         continue;
 954                                 }
 955                                 region_t r = {
 956                                         name,
 957                                         rindex,
 958                                         (int64_t)(start*ratefactor),
 959                                         (int64_t)(sampleoffset*ratefactor),
 960                                         (int64_t)(length*ratefactor),
 961                                         f
 962                                 };
 963                                 regions.push_back(r);
 964                         }
 965                         rindex++;
 966                 }
 967         }
 968
 969         while (k < len) {
 970                 if (            (ptfunxored[k  ] == 0x5a) &&
 971                                 (ptfunxored[k+1] == 0x03)) {
 972                                 break;
 973                 }
 974                 k++;
 975         }
 976         while (k < len) {
 977                 if (            (ptfunxored[k  ] == 0x5a) &&
 978                                 (ptfunxored[k+1] == 0x02)) {
 979                                 break;
 980                 }
 981                 k++;
 982         }
 983         k++;
 984
 985         //  Tracks
 986         uint32_t offset;
 987         uint32_t tracknumber = 0;
 988         uint32_t regionspertrack = 0;
 989         for (;k < len; k++) {
 990                 if (    (ptfunxored[k  ] == 0x5a) &&
 991                         (ptfunxored[k+1] == 0x04)) {
 992                         break;
 993                 }
 994                 if (    (ptfunxored[k  ] == 0x5a) &&
 995                         (ptfunxored[k+1] == 0x02)) {
 996
 997                         uint8_t lengthofname = 0;
 998                         lengthofname = ptfunxored[k+9];
 999                         if (lengthofname == 0x5a) {
1000                                 continue;
1001                         }
1002                         track_t tr;
1003
1004                         regionspertrack = (uint8_t)(ptfunxored[k+13+lengthofname]);
1005
1006                         //printf("regions/track=%d\n", regionspertrack);
1007                         char name[256] = {0};
1008                         for (j = 0; j < lengthofname; j++) {
1009                                 name[j] = ptfunxored[j+k+13];
1010                         }
1011                         name[j] = '\0';
1012                         tr.name = string(name);
1013                         tr.index = tracknumber++;
1014
1015                         for (j = k; regionspertrack > 0 && j < len; j++) {
1016                                 for (l = j; l < len; l++) {
1017                                         if (    (ptfunxored[l  ] == 0x5a) &&
1018                                                 (ptfunxored[l+1] == 0x07)) {
1019                                                 j = l;
1020                                                 break;
1021                                         }
1022                                 }
1023
1024
1025                                 if (regionspertrack == 0) {
1026                                 //      tr.reg.index = (uint8_t)ptfunxored[j+13+lengthofname+5];
1027                                         break;
1028                                 } else {
1029
1030                                         tr.reg.index = (uint8_t)(ptfunxored[l+11]);
1031                                         vector<region_t>::iterator begin = regions.begin();
1032                                         vector<region_t>::iterator finish = regions.end();
1033                                         vector<region_t>::iterator found;
1034                                         if ((found = std::find(begin, finish, tr.reg)) != finish) {
1035                                                 tr.reg = (*found);
1036                                         }
1037                                         i = l+16;
1038                                         offset = 0;
1039                                         offset |= (uint32_t)(ptfunxored[i+3] << 24);
1040                                         offset |= (uint32_t)(ptfunxored[i+2] << 16);
1041                                         offset |= (uint32_t)(ptfunxored[i+1] << 8);
1042                                         offset |= (uint32_t)(ptfunxored[i]);
1043                                         tr.reg.startpos = (int64_t)(offset*ratefactor);
1044                                         if (tr.reg.length > 0) {
1045                                                 tracks.push_back(tr);
1046                                         }
1047                                         regionspertrack--;
1048                                 }
1049                         }
1050                 }
1051         }
1052 }
1053
1054 void
1055 PTFFormat::parserest10(void) {
1056         uint64_t i,j,k,l;
1057         // Find Regions
1058         uint8_t startbytes = 0;
1059         uint8_t lengthbytes = 0;
1060         uint8_t offsetbytes = 0;
1061         uint8_t somethingbytes = 0;
1062         uint8_t skipbytes = 0;
1063
1064         k = 0;
1065         while (k < len) {
1066                 if (            (ptfunxored[k  ] == 'S') &&
1067                                 (ptfunxored[k+1] == 'n') &&
1068                                 (ptfunxored[k+2] == 'a') &&
1069                                 (ptfunxored[k+3] == 'p')) {
1070                         break;
1071                 }
1072                 k++;
1073         }
1074         for (i = k; i < len-70; i++) {
1075                 if (            (ptfunxored[i  ] == 0x5a) &&
1076                                 (ptfunxored[i+1] == 0x02)) {
1077                                 k = i;
1078                                 break;
1079                 }
1080         }
1081         k++;
1082         for (i = k; i < len-70; i++) {
1083                 if (            (ptfunxored[i  ] == 0x5a) &&
1084                                 (ptfunxored[i+1] == 0x02)) {
1085                                 k = i;
1086                                 break;
1087                 }
1088         }
1089         k++;
1090         uint16_t rindex = 0;
1091         uint32_t findex = 0;
1092         for (i = k; i < len-70; i++) {
1093                 if (            (ptfunxored[i  ] == 0x5a) &&
1094                                 (ptfunxored[i+1] == 0x08)) {
1095                                 break;
1096                 }
1097                 if (            (ptfunxored[i  ] == 0x5a) &&
1098                                 (ptfunxored[i+1] == 0x01)) {
1099
1100                         uint8_t lengthofname = ptfunxored[i+9];
1101                         if (ptfunxored[i+13] == 0x5a) {
1102                                 continue;
1103                         }
1104                         char name[256] = {0};
1105                         for (j = 0; j < lengthofname; j++) {
1106                                 name[j] = ptfunxored[i+13+j];
1107                         }
1108                         name[j] = '\0';
1109                         j += i+13;
1110                         //uint8_t disabled = ptfunxored[j];
1111                         //printf("%s\n", name);
1112
1113                         offsetbytes = (ptfunxored[j+1] & 0xf0) >> 4;
1114                         lengthbytes = (ptfunxored[j+2] & 0xf0) >> 4;
1115                         startbytes = (ptfunxored[j+3] & 0xf0) >> 4;
1116                         somethingbytes = (ptfunxored[j+3] & 0xf);
1117                         skipbytes = ptfunxored[j+4];
1118                         findex = ptfunxored[j+5
1119                                         +startbytes
1120                                         +lengthbytes
1121                                         +offsetbytes
1122                                         +somethingbytes
1123                                         +skipbytes
1124                                         +37];
1125                         /*rindex = ptfunxored[j+5
1126                                         +startbytes
1127                                         +lengthbytes
1128                                         +offsetbytes
1129                                         +somethingbytes
1130                                         +skipbytes
1131                                         +24];
1132                         */
1133                         uint32_t sampleoffset = 0;
1134                         switch (offsetbytes) {
1135                         case 4:
1136                                 sampleoffset |= (uint32_t)(ptfunxored[j+8] << 24);
1137                         case 3:
1138                                 sampleoffset |= (uint32_t)(ptfunxored[j+7] << 16);
1139                         case 2:
1140                                 sampleoffset |= (uint32_t)(ptfunxored[j+6] << 8);
1141                         case 1:
1142                                 sampleoffset |= (uint32_t)(ptfunxored[j+5]);
1143                         default:
1144                                 break;
1145                         }
1146                         j+=offsetbytes;
1147                         uint32_t length = 0;
1148                         switch (lengthbytes) {
1149                         case 4:
1150                                 length |= (uint32_t)(ptfunxored[j+8] << 24);
1151                         case 3:
1152                                 length |= (uint32_t)(ptfunxored[j+7] << 16);
1153                         case 2:
1154                                 length |= (uint32_t)(ptfunxored[j+6] << 8);
1155                         case 1:
1156                                 length |= (uint32_t)(ptfunxored[j+5]);
1157                         default:
1158                                 break;
1159                         }
1160                         j+=lengthbytes;
1161                         uint32_t start = 0;
1162                         switch (startbytes) {
1163                         case 4:
1164                                 start |= (uint32_t)(ptfunxored[j+8] << 24);
1165                         case 3:
1166                                 start |= (uint32_t)(ptfunxored[j+7] << 16);
1167                         case 2:
1168                                 start |= (uint32_t)(ptfunxored[j+6] << 8);
1169                         case 1:
1170                                 start |= (uint32_t)(ptfunxored[j+5]);
1171                         default:
1172                                 break;
1173                         }
1174                         j+=startbytes;
1175                         /*
1176                         uint32_t something = 0;
1177                         switch (somethingbytes) {
1178                         case 4:
1179                                 something |= (uint32_t)(ptfunxored[j+8] << 24);
1180                         case 3:
1181                                 something |= (uint32_t)(ptfunxored[j+7] << 16);
1182                         case 2:
1183                                 something |= (uint32_t)(ptfunxored[j+6] << 8);
1184                         case 1:
1185                                 something |= (uint32_t)(ptfunxored[j+5]);
1186                         default:
1187                                 break;
1188                         }
1189                         j+=somethingbytes;
1190                         */
1191                         std::string filename = string(name) + extension;
1192                         wav_t f = {
1193                                 filename,
1194                                 0,
1195                                 (int64_t)(start*ratefactor),
1196                                 (int64_t)(length*ratefactor),
1197                         };
1198
1199                         if (strlen(name) == 0) {
1200                                 continue;
1201                         }
1202                         if (length == 0) {
1203                                 continue;
1204                         }
1205                         f.index = findex;
1206                         //printf("something=%d\n", something);
1207
1208                         vector<wav_t>::iterator begin = actualwavs.begin();
1209                         vector<wav_t>::iterator finish = actualwavs.end();
1210                         vector<wav_t>::iterator found;
1211                         // Add file to list only if it is an actual wav
1212                         if ((found = std::find(begin, finish, f)) != finish) {
1213                                 audiofiles.push_back(f);
1214                                 // Also add plain wav as region
1215                                 region_t r = {
1216                                         name,
1217                                         rindex,
1218                                         (int64_t)(start*ratefactor),
1219                                         (int64_t)(sampleoffset*ratefactor),
1220                                         (int64_t)(length*ratefactor),
1221                                         f
1222                                 };
1223                                 regions.push_back(r);
1224                         // Region only
1225                         } else {
1226                                 if (foundin(filename, string(".grp"))) {
1227                                         continue;
1228                                 }
1229                                 region_t r = {
1230                                         name,
1231                                         rindex,
1232                                         (int64_t)(start*ratefactor),
1233                                         (int64_t)(sampleoffset*ratefactor),
1234                                         (int64_t)(length*ratefactor),
1235                                         f
1236                                 };
1237                                 regions.push_back(r);
1238                         }
1239                         rindex++;
1240                         //printf("%s\n", name);
1241                 }
1242         }
1243         //  Tracks
1244         uint32_t offset;
1245         uint32_t tracknumber = 0;
1246         uint32_t regionspertrack = 0;
1247         for (;k < len; k++) {
1248                 if (    (ptfunxored[k  ] == 0x5a) &&
1249                         (ptfunxored[k+1] == 0x08)) {
1250                         break;
1251                 }
1252         }
1253         k++;
1254         for (;k < len; k++) {
1255                 if (    (ptfunxored[k  ] == 0x5a) &&
1256                         (ptfunxored[k+1] == 0x04)) {
1257                         break;
1258                 }
1259                 if (    (ptfunxored[k  ] == 0x5a) &&
1260                         (ptfunxored[k+1] == 0x02)) {
1261
1262                         uint8_t lengthofname = 0;
1263                         lengthofname = ptfunxored[k+9];
1264                         if (lengthofname == 0x5a) {
1265                                 continue;
1266                         }
1267                         track_t tr;
1268
1269                         regionspertrack = (uint8_t)(ptfunxored[k+13+lengthofname]);
1270
1271                         //printf("regions/track=%d\n", regionspertrack);
1272                         char name[256] = {0};
1273                         for (j = 0; j < lengthofname; j++) {
1274                                 name[j] = ptfunxored[j+k+13];
1275                         }
1276                         name[j] = '\0';
1277                         tr.name = string(name);
1278                         tr.index = tracknumber++;
1279
1280                         for (j = k; regionspertrack > 0 && j < len; j++) {
1281                                 for (l = j; l < len; l++) {
1282                                         if (    (ptfunxored[l  ] == 0x5a) &&
1283                                                 (ptfunxored[l+1] == 0x08)) {
1284                                                 j = l+1;
1285                                                 break;
1286                                         }
1287                                 }
1288
1289
1290                                 if (regionspertrack == 0) {
1291                                 //      tr.reg.index = (uint8_t)ptfunxored[j+13+lengthofname+5];
1292                                         break;
1293                                 } else {
1294
1295                                         tr.reg.index = (uint8_t)(ptfunxored[l+11]);
1296                                         vector<region_t>::iterator begin = regions.begin();
1297                                         vector<region_t>::iterator finish = regions.end();
1298                                         vector<region_t>::iterator found;
1299                                         if ((found = std::find(begin, finish, tr.reg)) != finish) {
1300                                                 tr.set_region (&(*found));
1301                                         }
1302                                         i = l+16;
1303                                         offset = 0;
1304                                         offset |= (uint32_t)(ptfunxored[i+3] << 24);
1305                                         offset |= (uint32_t)(ptfunxored[i+2] << 16);
1306                                         offset |= (uint32_t)(ptfunxored[i+1] << 8);
1307                                         offset |= (uint32_t)(ptfunxored[i]);
1308                                         tr.reg.startpos = (int64_t)(offset*ratefactor);
1309                                         if (tr.reg.length > 0) {
1310                                                 tracks.push_back(tr);
1311                                         }
1312                                         regionspertrack--;
1313                                 }
1314                         }
1315                 }
1316         }
1317 }