playtreeparser.c

   1
   2 /// \file
   3 /// \ingroup PlaytreeParser
   4
   5 #include "config.h"
   6 #include <stdlib.h>
   7 #include <stdio.h>
   8 #include <string.h>
   9 #include <assert.h>
  10 #include <errno.h>
  11 #include <sys/types.h>
  12 #include <sys/stat.h>
  13 #include <fcntl.h>
  14 #include <unistd.h>
  15 #include <ctype.h>
  16 #include "m_config.h"
  17 #include "playtree.h"
  18 #include "playtreeparser.h"
  19 #include "stream/stream.h"
  20 #include "libmpdemux/demuxer.h"
  21 #include "mp_msg.h"
  22
  23
  24 extern play_tree_t*
  25 asx_parser_build_tree(char* buffer, int ref);
  26
  27 #define BUF_STEP 1024
  28
  29 #define WHITES " \n\r\t"
  30
  31 static void
  32 strstrip(char* str) {
  33   char* i;
  34
  35   if (str==NULL)
  36     return;
  37   for(i = str ; i[0] != '\0' && strchr(WHITES,i[0]) != NULL; i++)
  38     /* NOTHING */;
  39   if(i[0] != '\0') {
  40     memmove(str,i,strlen(i) + 1);
  41     for(i = str + strlen(str) - 1 ; strchr(WHITES,i[0]) != NULL; i--)
  42       /* NOTHING */;
  43     i[1] = '\0';
  44   } else
  45     str[0] = '\0';
  46 }
  47
  48 static char*
  49 play_tree_parser_get_line(play_tree_parser_t* p) {
  50   char *end,*line_end;
  51   int r,resize = 0;
  52
  53   if(p->buffer == NULL) {
  54     p->buffer = malloc(BUF_STEP);
  55     p->buffer_size = BUF_STEP;
  56     p->buffer[0] = 0;
  57     p->iter = p->buffer;
  58   }
  59
  60   if(p->stream->eof && (p->buffer_end == 0 || p->iter[0] == '\0'))
  61     return NULL;
  62
  63   assert(p->buffer_end < p->buffer_size);
  64   assert(!p->buffer[p->buffer_end]);
  65   while(1) {
  66
  67     if(resize) {
  68       r = p->iter - p->buffer;
  69       p->buffer = (char*)realloc(p->buffer,p->buffer_size+BUF_STEP);
  70       p->iter = p->buffer + r;
  71       p->buffer_size += BUF_STEP;
  72       resize = 0;
  73     }
  74
  75     if(p->buffer_size - p->buffer_end > 1 && ! p->stream->eof) {
  76       r = stream_read(p->stream,p->buffer + p->buffer_end,p->buffer_size - p->buffer_end - 1);
  77       if(r > 0) {
  78         p->buffer_end += r;
  79         assert(p->buffer_end < p->buffer_size);
  80         p->buffer[p->buffer_end] = '\0';
  81         while(strlen(p->buffer + p->buffer_end - r) != r)
  82           p->buffer[p->buffer_end - r + strlen(p->buffer + p->buffer_end - r)] = '\n';
  83       }
  84       assert(!p->buffer[p->buffer_end]);
  85     }
  86
  87     end = strchr(p->iter,'\n');
  88     if(!end) {
  89       if(p->stream->eof) {
  90         end = p->buffer + p->buffer_end;
  91         break;
  92       }
  93       resize = 1;
  94       continue;
  95     }
  96     break;
  97   }
  98
  99   line_end = (end > p->iter && *(end-1) == '\r') ? end-1 : end;
 100   if(line_end - p->iter >= 0)
 101     p->line = (char*)realloc(p->line,line_end - p->iter+1);
 102   else
 103     return NULL;
 104   if(line_end - p->iter > 0)
 105     strncpy(p->line,p->iter,line_end - p->iter);
 106   p->line[line_end - p->iter] = '\0';
 107   if(end[0] != '\0')
 108     end++;
 109
 110   if(!p->keep) {
 111     if(end[0] != '\0') {
 112       p->buffer_end -= end-p->iter;
 113       memmove(p->buffer,end,p->buffer_end);
 114     } else
 115       p->buffer_end = 0;
 116     p->buffer[p->buffer_end] = '\0';
 117     p->iter = p->buffer;
 118   } else
 119     p->iter = end;
 120
 121   return p->line;
 122 }
 123
 124 static void
 125 play_tree_parser_reset(play_tree_parser_t* p) {
 126   p->iter = p->buffer;
 127 }
 128
 129 static void
 130 play_tree_parser_stop_keeping(play_tree_parser_t* p) {
 131   p->keep = 0;
 132   if(p->iter && p->iter != p->buffer) {
 133     p->buffer_end -= p->iter -p->buffer;
 134     if(p->buffer_end)
 135       memmove(p->buffer,p->iter,p->buffer_end);
 136     p->buffer[p->buffer_end] = 0;
 137     p->iter = p->buffer;
 138   }
 139 }
 140
 141
 142 static play_tree_t*
 143 parse_asx(play_tree_parser_t* p) {
 144   int comments = 0,get_line = 1;
 145   char* line = NULL;
 146
 147   mp_msg(MSGT_PLAYTREE,MSGL_V,"Trying asx...\n");
 148
 149   while(1) {
 150     if(get_line) {
 151       line = play_tree_parser_get_line(p);
 152       if(!line)
 153         return NULL;
 154       strstrip(line);
 155       if(line[0] == '\0')
 156         continue;
 157     }
 158     if(!comments) {
 159       if(line[0] != '<') {
 160         mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"First char isn't '<' but '%c'\n",line[0]);
 161         mp_msg(MSGT_PLAYTREE,MSGL_DBG3,"Buffer = [%s]\n",p->buffer);
 162         return NULL;
 163       } else if(strncmp(line,"<!--",4) == 0) { // Comments
 164         comments = 1;
 165         line += 4;
 166         if(line[0] != '\0' && strlen(line) > 0)
 167           get_line = 0;
 168       } else if(strncasecmp(line,"<ASX",4) == 0) // We got an asx element
 169         break;
 170       else // We don't get an asx
 171         return NULL;
 172     } else { // Comments
 173       char* c;
 174       c = strchr(line,'-');
 175       if(c) {
 176         if (strncmp(c,"--!>",4) == 0) { // End of comments
 177           comments = 0;
 178           line = c+4;
 179           if(line[0] != '\0') // There is some more data on this line : keep it
 180             get_line = 0;
 181
 182         } else {
 183           line = c+1; // Jump the -
 184           if(line[0] != '\0') // Some more data
 185             get_line = 0;
 186           else  // End of line
 187             get_line = 1;
 188         }
 189       } else // No - on this line (or rest of line) : get next one
 190         get_line = 1;
 191     }
 192   }
 193
 194   mp_msg(MSGT_PLAYTREE,MSGL_V,"Detected asx format\n");
 195
 196   // We have an asx : load it in memory and parse
 197
 198   while((line = play_tree_parser_get_line(p)) != NULL)
 199     /* NOTHING */;
 200
 201  mp_msg(MSGT_PLAYTREE,MSGL_DBG3,"Parsing asx file: [%s]\n",p->buffer);
 202  return asx_parser_build_tree(p->buffer,p->deep);
 203 }
 204
 205 static char*
 206 pls_entry_get_value(char* line) {
 207   char* i;
 208
 209   i = strchr(line,'=');
 210   if(!i || i[1] == '\0')
 211     return NULL;
 212   else
 213     return i+1;
 214 }
 215
 216 typedef struct pls_entry {
 217   char* file;
 218   char* title;
 219   char* length;
 220 } pls_entry_t;
 221
 222 static int
 223 pls_read_entry(char* line,pls_entry_t** _e,int* _max_entry,char** val) {
 224   int num,max_entry = (*_max_entry);
 225   pls_entry_t* e = (*_e);
 226   char* v;
 227
 228   v = pls_entry_get_value(line);
 229   if(!v) {
 230     mp_msg(MSGT_PLAYTREE,MSGL_ERR,"No value in entry %s\n",line);
 231     return 0;
 232   }
 233
 234   num = atoi(line);
 235   if(num < 0) {
 236     num = max_entry+1;
 237     mp_msg(MSGT_PLAYTREE,MSGL_WARN,"No entry index in entry %s\nAssuming %d\n",line,num);
 238   }
 239   if(num > max_entry) {
 240     e = (pls_entry_t*)realloc(e,num*sizeof(pls_entry_t));
 241     memset(&e[max_entry],0,(num-max_entry)*sizeof(pls_entry_t));
 242     max_entry = num;
 243   }
 244   (*_e) = e;
 245   (*_max_entry) = max_entry;
 246   (*val) = v;
 247
 248   return num;
 249 }
 250
 251
 252 static play_tree_t*
 253 parse_pls(play_tree_parser_t* p) {
 254   char *line,*v;
 255   pls_entry_t* entries = NULL;
 256   int n_entries = 0,max_entry=0,num;
 257   play_tree_t *list = NULL, *entry = NULL, *last_entry = NULL;
 258
 259   mp_msg(MSGT_PLAYTREE,MSGL_V,"Trying Winamp playlist...\n");
 260   while((line = play_tree_parser_get_line(p))) {
 261     strstrip(line);
 262     if(strlen(line))
 263       break;
 264   }
 265   if (!line)
 266     return NULL;
 267   if(strcasecmp(line,"[playlist]"))
 268     return NULL;
 269   mp_msg(MSGT_PLAYTREE,MSGL_V,"Detected Winamp playlist format\n");
 270   play_tree_parser_stop_keeping(p);
 271   line = play_tree_parser_get_line(p);
 272   if(!line)
 273     return NULL;
 274   strstrip(line);
 275   if(strncasecmp(line,"NumberOfEntries",15) == 0) {
 276     v = pls_entry_get_value(line);
 277     n_entries = atoi(v);
 278     if(n_entries < 0)
 279       mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Invalid number of entries: very funny!!!\n");
 280     else
 281       mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Playlist claims to have %d entries. Let's see.\n",n_entries);
 282     line = play_tree_parser_get_line(p);
 283   }
 284
 285   while(line) {
 286     strstrip(line);
 287     if(line[0] == '\0') {
 288       line = play_tree_parser_get_line(p);
 289       continue;
 290     }
 291     if(strncasecmp(line,"File",4) == 0) {
 292       num = pls_read_entry(line+4,&entries,&max_entry,&v);
 293       if(num < 0)
 294         mp_msg(MSGT_PLAYTREE,MSGL_ERR,"No value in entry %s\n",line);
 295       else
 296         entries[num-1].file = strdup(v);
 297     } else if(strncasecmp(line,"Title",5) == 0) {
 298       num = pls_read_entry(line+5,&entries,&max_entry,&v);
 299       if(num < 0)
 300         mp_msg(MSGT_PLAYTREE,MSGL_ERR,"No value in entry %s\n",line);
 301       else
 302         entries[num-1].title = strdup(v);
 303     } else if(strncasecmp(line,"Length",6) == 0) {
 304       num = pls_read_entry(line+6,&entries,&max_entry,&v);
 305       if(num < 0)
 306         mp_msg(MSGT_PLAYTREE,MSGL_ERR,"No value in entry %s\n",line);
 307       else
 308         entries[num-1].length = strdup(v);
 309     } else
 310       mp_msg(MSGT_PLAYTREE,MSGL_WARN,"Unknown entry type %s\n",line);
 311     line = play_tree_parser_get_line(p);
 312   }
 313
 314   for(num = 0; num < max_entry ; num++) {
 315     if(entries[num].file == NULL)
 316       mp_msg(MSGT_PLAYTREE,MSGL_ERR,"Entry %d don't have a file !!!!\n",num+1);
 317     else {
 318       mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Adding entry %s\n",entries[num].file);
 319       entry = play_tree_new();
 320       play_tree_add_file(entry,entries[num].file);
 321       free(entries[num].file);
 322       if(list)
 323         play_tree_append_entry(last_entry,entry);
 324       else
 325         list = entry;
 326       last_entry = entry;
 327     }
 328     if(entries[num].title) {
 329       // When we have info in playtree we add this info
 330       free(entries[num].title);
 331     }
 332     if(entries[num].length) {
 333       // When we have info in playtree we add this info
 334       free(entries[num].length);
 335     }
 336   }
 337
 338   free(entries);
 339
 340   entry = play_tree_new();
 341   play_tree_set_child(entry,list);
 342   return entry;
 343 }
 344
 345 /*
 346  Reference Ini-Format: Each entry is assumed a reference
 347  */
 348 static play_tree_t*
 349 parse_ref_ini(play_tree_parser_t* p) {
 350   char *line,*v;
 351   play_tree_t *list = NULL, *entry = NULL, *last_entry = NULL;
 352
 353   mp_msg(MSGT_PLAYTREE,MSGL_V,"Trying reference-ini playlist...\n");
 354   if (!(line = play_tree_parser_get_line(p)))
 355     return NULL;
 356   strstrip(line);
 357   if(strcasecmp(line,"[Reference]"))
 358     return NULL;
 359   mp_msg(MSGT_PLAYTREE,MSGL_V,"Detected reference-ini playlist format\n");
 360   play_tree_parser_stop_keeping(p);
 361   line = play_tree_parser_get_line(p);
 362   if(!line)
 363     return NULL;
 364   while(line) {
 365     strstrip(line);
 366     if(strncasecmp(line,"Ref",3) == 0) {
 367       v = pls_entry_get_value(line+3);
 368       if(!v)
 369         mp_msg(MSGT_PLAYTREE,MSGL_ERR,"No value in entry %s\n",line);
 370       else
 371       {
 372         mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Adding entry %s\n",v);
 373         entry = play_tree_new();
 374         play_tree_add_file(entry,v);
 375         if(list)
 376           play_tree_append_entry(last_entry,entry);
 377         else
 378           list = entry;
 379         last_entry = entry;
 380       }
 381     }
 382     line = play_tree_parser_get_line(p);
 383   }
 384
 385   if(!list) return NULL;
 386   entry = play_tree_new();
 387   play_tree_set_child(entry,list);
 388   return entry;
 389 }
 390
 391 static play_tree_t*
 392 parse_m3u(play_tree_parser_t* p) {
 393   char* line;
 394   play_tree_t *list = NULL, *entry = NULL, *last_entry = NULL;
 395
 396   mp_msg(MSGT_PLAYTREE,MSGL_V,"Trying extended m3u playlist...\n");
 397   if (!(line = play_tree_parser_get_line(p)))
 398     return NULL;
 399   strstrip(line);
 400   if(strcasecmp(line,"#EXTM3U"))
 401     return NULL;
 402   mp_msg(MSGT_PLAYTREE,MSGL_V,"Detected extended m3u playlist format\n");
 403   play_tree_parser_stop_keeping(p);
 404
 405   while((line = play_tree_parser_get_line(p)) != NULL) {
 406     strstrip(line);
 407     if(line[0] == '\0')
 408       continue;
 409     /* EXTM3U files contain such lines:
 410      * #EXTINF:<seconds>, <title>
 411      * followed by a line with the filename
 412      * for now we have no place to put that
 413      * so we just skip that extra-info ::atmos
 414      */
 415     if(line[0] == '#') {
 416 #if 0 /* code functional */
 417       if(strncasecmp(line,"#EXTINF:",8) == 0) {
 418         mp_msg(MSGT_PLAYTREE,MSGL_INFO,"[M3U] Duration: %dsec  Title: %s\n",
 419           strtol(line+8,&line,10), line+2);
 420       }
 421 #endif
 422       continue;
 423     }
 424     entry = play_tree_new();
 425     play_tree_add_file(entry,line);
 426     if(!list)
 427       list = entry;
 428     else
 429       play_tree_append_entry(last_entry,entry);
 430     last_entry = entry;
 431   }
 432
 433   if(!list) return NULL;
 434   entry = play_tree_new();
 435   play_tree_set_child(entry,list);
 436   return entry;
 437 }
 438
 439 static play_tree_t*
 440 parse_smil(play_tree_parser_t* p) {
 441   int entrymode=0;
 442   char* line,source[512],*pos,*s_start,*s_end,*src_line;
 443   play_tree_t *list = NULL, *entry = NULL, *last_entry = NULL;
 444   int is_rmsmil = 0;
 445   unsigned int npkt, ttlpkt;
 446
 447   mp_msg(MSGT_PLAYTREE,MSGL_V,"Trying smil playlist...\n");
 448
 449   // Check if smil
 450   while((line = play_tree_parser_get_line(p)) != NULL) {
 451     strstrip(line);
 452     if(line[0] == '\0') // Ignore empties
 453       continue;
 454     if (strncasecmp(line,"<?xml",5)==0) // smil in xml
 455       continue;
 456     if (strncasecmp(line,"<smil",5)==0 || strncasecmp(line,"<?wpl",5)==0 ||
 457       strncasecmp(line,"(smil-document",14)==0)
 458       break; // smil header found
 459     else
 460       return NULL; //line not smil exit
 461   }
 462
 463   if (!line) return NULL;
 464   mp_msg(MSGT_PLAYTREE,MSGL_V,"Detected smil playlist format\n");
 465   play_tree_parser_stop_keeping(p);
 466
 467   if (strncasecmp(line,"(smil-document",14)==0) {
 468     mp_msg(MSGT_PLAYTREE,MSGL_V,"Special smil-over-realrtsp playlist header\n");
 469     is_rmsmil = 1;
 470     if (sscanf(line, "(smil-document (ver 1.0)(npkt %u)(ttlpkt %u", &npkt, &ttlpkt) != 2) {
 471       mp_msg(MSGT_PLAYTREE,MSGL_WARN,"smil-over-realrtsp: header parsing failure, assuming single packet.\n");
 472       npkt = ttlpkt = 1;
 473     }
 474     if (ttlpkt == 0 || npkt > ttlpkt) {
 475       mp_msg(MSGT_PLAYTREE,MSGL_WARN,"smil-over-realrtsp: bad packet counters (npkk = %u, ttlpkt = %u), assuming single packet.\n",
 476         npkt, ttlpkt);
 477       npkt = ttlpkt = 1;
 478     }
 479   }
 480
 481   //Get entries from smil
 482   src_line = line;
 483   line = NULL;
 484   do {
 485     strstrip(src_line);
 486     if (line) {
 487       free(line);
 488       line = NULL;
 489     }
 490     /* If we're parsing smil over realrtsp and this is not the last packet and
 491      * this is the last line in the packet (terminating with ") ) we must get
 492      * the next line, strip the header, and concatenate it to the current line.
 493      */
 494     if (is_rmsmil && npkt != ttlpkt && strstr(src_line,"\")")) {
 495       char *payload;
 496
 497       line = strdup(src_line);
 498       if(!(src_line = play_tree_parser_get_line(p))) {
 499         mp_msg(MSGT_PLAYTREE,MSGL_WARN,"smil-over-realrtsp: can't get line from packet %u/%u.\n", npkt, ttlpkt);
 500         break;
 501       }
 502       strstrip(src_line);
 503       // Skip header, packet starts after "
 504       if(!(payload = strchr(src_line,'\"'))) {
 505         mp_msg(MSGT_PLAYTREE,MSGL_WARN,"smil-over-realrtsp: can't find start of packet, using complete line.\n");
 506         payload = src_line;
 507       } else
 508         payload++;
 509       // Skip ") at the end of the last line from the current packet
 510       line[strlen(line)-2] = 0;
 511       line = realloc(line, strlen(line)+strlen(payload)+1);
 512       strcat (line, payload);
 513       npkt++;
 514     } else
 515       line = strdup(src_line);
 516     /* Unescape \" to " for smil-over-rtsp */
 517     if (is_rmsmil && line[0] != '\0') {
 518       int i, j;
 519
 520       for (i = 0; i < strlen(line); i++)
 521         if (line[i] == '\\' && line[i+1] == '"')
 522           for (j = i; line[j]; j++)
 523             line[j] = line[j+1];
 524     }
 525     pos = line;
 526    while (pos) {
 527     if (!entrymode) { // all entries filled so far
 528      while ((pos=strchr(pos, '<'))) {
 529       if (strncasecmp(pos,"<video",6)==0  || strncasecmp(pos,"<audio",6)==0 || strncasecmp(pos,"<media",6)==0) {
 530           entrymode=1;
 531           break; // Got a valid tag, exit '<' search loop
 532       }
 533       pos++;
 534      }
 535     }
 536     if (entrymode) { //Entry found but not yet filled
 537       pos = strstr(pos,"src=");   // Is source present on this line
 538       if (pos != NULL) {
 539         entrymode=0;
 540         if (pos[4] != '"' && pos[4] != '\'') {
 541           mp_msg(MSGT_PLAYTREE,MSGL_V,"Unknown delimiter %c in source line %s\n", pos[4], line);
 542           break;
 543         }
 544         s_start=pos+5;
 545         s_end=strchr(s_start,pos[4]);
 546         if (s_end == NULL) {
 547           mp_msg(MSGT_PLAYTREE,MSGL_V,"Error parsing this source line %s\n",line);
 548           break;
 549         }
 550         if (s_end-s_start> 511) {
 551           mp_msg(MSGT_PLAYTREE,MSGL_V,"Cannot store such a large source %s\n",line);
 552           break;
 553         }
 554         strncpy(source,s_start,s_end-s_start);
 555         source[(s_end-s_start)]='\0'; // Null terminate
 556         entry = play_tree_new();
 557         play_tree_add_file(entry,source);
 558         if(!list)  //Insert new entry
 559           list = entry;
 560         else
 561           play_tree_append_entry(last_entry,entry);
 562         last_entry = entry;
 563         pos = s_end;
 564       }
 565     }
 566    }
 567   } while((src_line = play_tree_parser_get_line(p)) != NULL);
 568
 569   if (line)
 570     free(line);
 571
 572   if(!list) return NULL; // Nothing found
 573
 574   entry = play_tree_new();
 575   play_tree_set_child(entry,list);
 576   return entry;
 577 }
 578
 579 static play_tree_t*
 580 embedded_playlist_parse(char *line) {
 581   int f=DEMUXER_TYPE_PLAYLIST;
 582   stream_t* stream;
 583   play_tree_parser_t* ptp;
 584   play_tree_t* entry;
 585
 586   // Get stream opened to link
 587   stream=open_stream(line,0,&f);
 588   if(!stream) {
 589     mp_msg(MSGT_PLAYTREE,MSGL_WARN,"Can't open playlist %s\n",line);
 590     return NULL;
 591   }
 592
 593   //add new playtree
 594   mp_msg(MSGT_PLAYTREE,MSGL_V,"Adding playlist %s to element entryref\n",line);
 595
 596   ptp = play_tree_parser_new(stream,1);
 597   entry = play_tree_parser_get_play_tree(ptp, 1);
 598   play_tree_parser_free(ptp);
 599   free_stream(stream);
 600
 601   return entry;
 602 }
 603
 604 static play_tree_t*
 605 parse_textplain(play_tree_parser_t* p) {
 606   char* line;
 607   char *c;
 608   int embedded;
 609   play_tree_t *list = NULL, *entry = NULL, *last_entry = NULL;
 610
 611   mp_msg(MSGT_PLAYTREE,MSGL_V,"Trying plaintext playlist...\n");
 612   play_tree_parser_stop_keeping(p);
 613
 614   while((line = play_tree_parser_get_line(p)) != NULL) {
 615     strstrip(line);
 616     if(line[0] == '\0' || line[0] == '#' || (line[0] == '/' && line[1] == '/'))
 617       continue;
 618
 619     //Special check for embedded smil or ram reference in file
 620     embedded = 0;
 621     if (strlen(line) > 5)
 622       for(c = line; c[0]; c++ )
 623         if ( ((c[0] == '.') && //start with . and next have smil with optional ? or &
 624            (tolower(c[1]) == 's') && (tolower(c[2])== 'm') &&
 625            (tolower(c[3]) == 'i') && (tolower(c[4]) == 'l') &&
 626            (!c[5] || c[5] == '?' || c[5] == '&')) || // or
 627           ((c[0] == '.') && // start with . and next have smi or ram with optional ? or &
 628           ( ((tolower(c[1]) == 's') && (tolower(c[2])== 'm') && (tolower(c[3]) == 'i')) ||
 629             ((tolower(c[1]) == 'r') && (tolower(c[2])== 'a') && (tolower(c[3]) == 'm')) )
 630            && (!c[4] || c[4] == '?' || c[4] == '&')) ){
 631           entry=embedded_playlist_parse(line);
 632           embedded = 1;
 633           break;
 634         }
 635
 636     if (!embedded) {      //regular file link
 637       entry = play_tree_new();
 638       play_tree_add_file(entry,line);
 639     }
 640
 641     if (entry != NULL) {
 642       if(!list)
 643         list = entry;
 644       else
 645         play_tree_append_entry(last_entry,entry);
 646       last_entry = entry;
 647     }
 648   }
 649
 650   if(!list) return NULL;
 651   entry = play_tree_new();
 652   play_tree_set_child(entry,list);
 653   return entry;
 654 }
 655
 656 play_tree_t*
 657 parse_playtree(stream_t *stream, int forced) {
 658   play_tree_parser_t* p;
 659   play_tree_t* ret;
 660
 661 #ifdef MP_DEBUG
 662   assert(stream != NULL);
 663 #endif
 664
 665   p = play_tree_parser_new(stream,0);
 666   if(!p)
 667     return NULL;
 668
 669   ret = play_tree_parser_get_play_tree(p, forced);
 670   play_tree_parser_free(p);
 671
 672   return ret;
 673 }
 674
 675 static void
 676 play_tree_add_basepath(play_tree_t* pt, char* bp) {
 677   int i,bl = strlen(bp),fl;
 678
 679   if(pt->child) {
 680     play_tree_t* i;
 681     for(i = pt->child ; i != NULL ; i = i->next)
 682       play_tree_add_basepath(i,bp);
 683     return;
 684   }
 685
 686   if(!pt->files)
 687     return;
 688
 689   for(i = 0 ; pt->files[i] != NULL ; i++) {
 690     fl = strlen(pt->files[i]);
 691     // if we find a full unix path, url:// or X:\ at the beginning,
 692     // don't mangle it.
 693     if(fl <= 0 || strstr(pt->files[i],"://") || (strstr(pt->files[i],":\\") == pt->files[i] + 1) || (pt->files[i][0] == '/') )
 694       continue;
 695     // if the path begins with \ then prepend drive letter to it.
 696     if (pt->files[i][0] == '\\') {
 697       if (pt->files[i][1] == '\\')
 698         continue;
 699       pt->files[i] = (char*)realloc(pt->files[i],2+fl+1);
 700       memmove(pt->files[i] + 2,pt->files[i],fl+1);
 701       memcpy(pt->files[i],bp,2);
 702       continue;
 703     }
 704     pt->files[i] = (char*)realloc(pt->files[i],bl+fl+1);
 705     memmove(pt->files[i] + bl,pt->files[i],fl+1);
 706     memcpy(pt->files[i],bp,bl);
 707   }
 708 }
 709
 710 // Wrapper for play_tree_add_basepath (add base path from file)
 711 void play_tree_add_bpf(play_tree_t* pt, char* filename)
 712 {
 713   char *ls, *file;
 714
 715   if (pt && filename)
 716   {
 717     file = strdup(filename);
 718     if (file)
 719     {
 720       ls = strrchr(file,'/');
 721       if(!ls) ls = strrchr(file,'\\');
 722       if(ls) {
 723         ls[1] = '\0';
 724         play_tree_add_basepath(pt,file);
 725       }
 726       free(file);
 727     }
 728   }
 729 }
 730
 731 play_tree_t*
 732 parse_playlist_file(char* file) {
 733   stream_t *stream;
 734   play_tree_t* ret;
 735   int f=DEMUXER_TYPE_PLAYLIST;
 736
 737   stream = open_stream(file,0,&f);
 738
 739   if(!stream) {
 740     mp_msg(MSGT_PLAYTREE,MSGL_ERR,"Error while opening playlist file %s: %s\n",file,strerror(errno));
 741     return NULL;
 742   }
 743
 744   mp_msg(MSGT_PLAYTREE,MSGL_V,"Parsing playlist file %s...\n",file);
 745
 746   ret = parse_playtree(stream,1);
 747   free_stream(stream);
 748
 749   play_tree_add_bpf(ret, file);
 750
 751   return ret;
 752
 753 }
 754
 755
 756 play_tree_parser_t*
 757 play_tree_parser_new(stream_t* stream,int deep) {
 758   play_tree_parser_t* p;
 759
 760   p = calloc(1,sizeof(play_tree_parser_t));
 761   if(!p)
 762     return NULL;
 763   p->stream = stream;
 764   p->deep = deep;
 765   p->keep = 1;
 766
 767   return p;
 768
 769 }
 770
 771 void
 772 play_tree_parser_free(play_tree_parser_t* p) {
 773
 774 #ifdef MP_DEBUG
 775   assert(p != NULL);
 776 #endif
 777
 778   if(p->buffer) free(p->buffer);
 779   if(p->line) free(p->line);
 780   free(p);
 781 }
 782
 783 play_tree_t*
 784 play_tree_parser_get_play_tree(play_tree_parser_t* p, int forced) {
 785   play_tree_t* tree = NULL;
 786
 787 #ifdef MP_DEBUG
 788   assert(p != NULL);
 789 #endif
 790
 791
 792   while(play_tree_parser_get_line(p) != NULL) {
 793     play_tree_parser_reset(p);
 794
 795     tree = parse_asx(p);
 796     if(tree) break;
 797     play_tree_parser_reset(p);
 798
 799     tree = parse_pls(p);
 800     if(tree) break;
 801     play_tree_parser_reset(p);
 802
 803     tree = parse_m3u(p);
 804     if(tree) break;
 805     play_tree_parser_reset(p);
 806
 807     tree = parse_ref_ini(p);
 808     if(tree) break;
 809     play_tree_parser_reset(p);
 810
 811     tree = parse_smil(p);
 812     if(tree) break;
 813     play_tree_parser_reset(p);
 814
 815     // Here come the others formats ( textplain must stay the last one )
 816     if (forced)
 817     {
 818       tree = parse_textplain(p);
 819       if(tree) break;
 820     }
 821     break;
 822   }
 823
 824   if(tree)
 825     mp_msg(MSGT_PLAYTREE,MSGL_V,"Playlist successfully parsed\n");
 826   else
 827     mp_msg(MSGT_PLAYTREE,((forced==1)?MSGL_ERR:MSGL_V),"Error while parsing playlist\n");
 828
 829   if(tree)
 830     tree = play_tree_cleanup(tree);
 831
 832   if(!tree) mp_msg(MSGT_PLAYTREE,((forced==1)?MSGL_WARN:MSGL_V),"Warning: empty playlist\n");
 833
 834   return tree;
 835 }