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 #ifdef MP_DEBUG
  10 #include <assert.h>
  11 #endif
  12 #include <errno.h>
  13 #include <sys/types.h>
  14 #include <sys/stat.h>
  15 #include <fcntl.h>
  16 #include <unistd.h>
  17 #include <ctype.h>
  18 #include "m_config.h"
  19 #include "playtree.h"
  20 #include "playtreeparser.h"
  21 #include "stream/stream.h"
  22 #include "libmpdemux/demuxer.h"
  23 #include "mp_msg.h"
  24
  25
  26 extern play_tree_t*
  27 asx_parser_build_tree(char* buffer, int ref);
  28
  29 #define BUF_STEP 1024
  30
  31 #define WHITES " \n\r\t"
  32
  33 static void
  34 strstrip(char* str) {
  35   char* i;
  36
  37   if (str==NULL)
  38     return;
  39   for(i = str ; i[0] != '\0' && strchr(WHITES,i[0]) != NULL; i++)
  40     /* NOTHING */;
  41   if(i[0] != '\0') {
  42     memmove(str,i,strlen(i) + 1);
  43     for(i = str + strlen(str) - 1 ; strchr(WHITES,i[0]) != NULL; i--)
  44       /* NOTHING */;
  45     i[1] = '\0';
  46   } else
  47     str[0] = '\0';
  48 }
  49
  50 static char*
  51 play_tree_parser_get_line(play_tree_parser_t* p) {
  52   char *end,*line_end;
  53   int r,resize = 0;
  54
  55   if(p->buffer == NULL) {
  56     p->buffer = malloc(BUF_STEP);
  57     p->buffer_size = BUF_STEP;
  58     p->iter = p->buffer;
  59   }
  60
  61   if(p->stream->eof && (p->buffer_end == 0 || p->iter[0] == '\0'))
  62     return NULL;
  63
  64   while(1) {
  65
  66     if(resize) {
  67       r = p->iter - p->buffer;
  68       p->buffer = (char*)realloc(p->buffer,p->buffer_size+BUF_STEP);
  69       p->iter = p->buffer + r;
  70       p->buffer_size += BUF_STEP;
  71       resize = 0;
  72     }
  73
  74     if(p->buffer_size - p->buffer_end > 1 && ! p->stream->eof) {
  75       r = stream_read(p->stream,p->buffer + p->buffer_end,p->buffer_size - p->buffer_end - 1);
  76       if(r > 0) {
  77         p->buffer_end += r;
  78         p->buffer[p->buffer_end] = '\0';
  79         while(strlen(p->buffer + p->buffer_end - r) != r)
  80           p->buffer[p->buffer_end - r + strlen(p->buffer + p->buffer_end - r)] = '\n';
  81       }
  82     }
  83
  84     end = strchr(p->iter,'\n');
  85     if(!end) {
  86       if(p->stream->eof) {
  87         end = p->buffer + p->buffer_end;
  88         break;
  89       }
  90       resize = 1;
  91       continue;
  92     }
  93     break;
  94   }
  95
  96   line_end = ((*(end-1)) == '\r') ? end-1 : end;
  97   if(line_end - p->iter >= 0)
  98     p->line = (char*)realloc(p->line,line_end - p->iter+1);
  99   else
 100     return NULL;
 101   if(line_end - p->iter > 0)
 102     strncpy(p->line,p->iter,line_end - p->iter);
 103   p->line[line_end - p->iter] = '\0';
 104   if(end[0] != '\0')
 105     end++;
 106
 107   if(!p->keep) {
 108     if(end[0] != '\0') {
 109       p->buffer_end -= end-p->iter;
 110       memmove(p->buffer,end,p->buffer_end);
 111       p->buffer[p->buffer_end] = '\0';
 112     } else
 113       p->buffer_end = 0;
 114     p->iter = p->buffer;
 115   } else
 116     p->iter = end;
 117
 118   return p->line;
 119 }
 120
 121 static void
 122 play_tree_parser_reset(play_tree_parser_t* p) {
 123   p->iter = p->buffer;
 124 }
 125
 126 static void
 127 play_tree_parser_stop_keeping(play_tree_parser_t* p) {
 128   p->keep = 0;
 129   if(p->iter && p->iter != p->buffer) {
 130     p->buffer_end -= p->iter -p->buffer;
 131     if(p->buffer_end)
 132       memmove(p->buffer,p->iter,p->buffer_end);
 133     p->iter = p->buffer;
 134   }
 135 }
 136
 137
 138 static play_tree_t*
 139 parse_asx(play_tree_parser_t* p) {
 140   int comments = 0,get_line = 1;
 141   char* line = NULL;
 142
 143   mp_msg(MSGT_PLAYTREE,MSGL_V,"Trying asx...\n");
 144
 145   while(1) {
 146     if(get_line) {
 147       line = play_tree_parser_get_line(p);
 148       if(!line)
 149         return NULL;
 150       strstrip(line);
 151       if(line[0] == '\0')
 152         continue;
 153     }
 154     if(!comments) {
 155       if(line[0] != '<') {
 156         mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"First char isn't '<' but '%c'\n",line[0]);
 157         mp_msg(MSGT_PLAYTREE,MSGL_DBG3,"Buffer = [%s]\n",p->buffer);
 158         return NULL;
 159       } else if(strncmp(line,"<!--",4) == 0) { // Comments
 160         comments = 1;
 161         line += 4;
 162         if(line[0] != '\0' && strlen(line) > 0)
 163           get_line = 0;
 164       } else if(strncasecmp(line,"<ASX",4) == 0) // We got an asx element
 165         break;
 166       else // We don't get an asx
 167         return NULL;
 168     } else { // Comments
 169       char* c;
 170       c = strchr(line,'-');
 171       if(c) {
 172         if (strncmp(c,"--!>",4) == 0) { // End of comments
 173           comments = 0;
 174           line = c+4;
 175           if(line[0] != '\0') // There is some more data on this line : keep it
 176             get_line = 0;
 177
 178         } else {
 179           line = c+1; // Jump the -
 180           if(line[0] != '\0') // Some more data
 181             get_line = 0;
 182           else  // End of line
 183             get_line = 1;
 184         }
 185       } else // No - on this line (or rest of line) : get next one
 186         get_line = 1;
 187     }
 188   }
 189
 190   mp_msg(MSGT_PLAYTREE,MSGL_V,"Detected asx format\n");
 191
 192   // We have an asx : load it in memory and parse
 193
 194   while((line = play_tree_parser_get_line(p)) != NULL)
 195     /* NOTHING */;
 196
 197  mp_msg(MSGT_PLAYTREE,MSGL_DBG3,"Parsing asx file: [%s]\n",p->buffer);
 198  return asx_parser_build_tree(p->buffer,p->deep);
 199 }
 200
 201 static char*
 202 pls_entry_get_value(char* line) {
 203   char* i;
 204
 205   i = strchr(line,'=');
 206   if(!i || i[1] == '\0')
 207     return NULL;
 208   else
 209     return i+1;
 210 }
 211
 212 typedef struct pls_entry {
 213   char* file;
 214   char* title;
 215   char* length;
 216 } pls_entry_t;
 217
 218 static int
 219 pls_read_entry(char* line,pls_entry_t** _e,int* _max_entry,char** val) {
 220   int num,max_entry = (*_max_entry);
 221   pls_entry_t* e = (*_e);
 222   char* v;
 223
 224   v = pls_entry_get_value(line);
 225   if(!v) {
 226     mp_msg(MSGT_PLAYTREE,MSGL_ERR,"No value in entry %s\n",line);
 227     return 0;
 228   }
 229
 230   num = atoi(line);
 231   if(num < 0) {
 232     num = max_entry+1;
 233     mp_msg(MSGT_PLAYTREE,MSGL_WARN,"No entry index in entry %s\nAssuming %d\n",line,num);
 234   }
 235   if(num > max_entry) {
 236     e = (pls_entry_t*)realloc(e,num*sizeof(pls_entry_t));
 237     memset(&e[max_entry],0,(num-max_entry)*sizeof(pls_entry_t));
 238     max_entry = num;
 239   }
 240   (*_e) = e;
 241   (*_max_entry) = max_entry;
 242   (*val) = v;
 243
 244   return num;
 245 }
 246
 247
 248 static play_tree_t*
 249 parse_pls(play_tree_parser_t* p) {
 250   char *line,*v;
 251   pls_entry_t* entries = NULL;
 252   int n_entries = 0,max_entry=0,num;
 253   play_tree_t *list = NULL, *entry = NULL, *last_entry = NULL;
 254
 255   mp_msg(MSGT_PLAYTREE,MSGL_V,"Trying Winamp playlist...\n");
 256   while((line = play_tree_parser_get_line(p))) {
 257     strstrip(line);
 258     if(strlen(line))
 259       break;
 260   }
 261   if (!line)
 262     return NULL;
 263   if(strcasecmp(line,"[playlist]"))
 264     return NULL;
 265   mp_msg(MSGT_PLAYTREE,MSGL_V,"Detected Winamp playlist format\n");
 266   play_tree_parser_stop_keeping(p);
 267   line = play_tree_parser_get_line(p);
 268   if(!line)
 269     return NULL;
 270   strstrip(line);
 271   if(strncasecmp(line,"NumberOfEntries",15) == 0) {
 272     v = pls_entry_get_value(line);
 273     n_entries = atoi(v);
 274     if(n_entries < 0)
 275       mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Invalid number of entries: very funny!!!\n");
 276     else
 277       mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Playlist claims to have %d entries. Let's see.\n",n_entries);
 278     line = play_tree_parser_get_line(p);
 279   }
 280
 281   while(line) {
 282     strstrip(line);
 283     if(line[0] == '\0') {
 284       line = play_tree_parser_get_line(p);
 285       continue;
 286     }
 287     if(strncasecmp(line,"File",4) == 0) {
 288       num = pls_read_entry(line+4,&entries,&max_entry,&v);
 289       if(num < 0)
 290         mp_msg(MSGT_PLAYTREE,MSGL_ERR,"No value in entry %s\n",line);
 291       else
 292         entries[num-1].file = strdup(v);
 293     } else if(strncasecmp(line,"Title",5) == 0) {
 294       num = pls_read_entry(line+5,&entries,&max_entry,&v);
 295       if(num < 0)
 296         mp_msg(MSGT_PLAYTREE,MSGL_ERR,"No value in entry %s\n",line);
 297       else
 298         entries[num-1].title = strdup(v);
 299     } else if(strncasecmp(line,"Length",6) == 0) {
 300       num = pls_read_entry(line+6,&entries,&max_entry,&v);
 301       if(num < 0)
 302         mp_msg(MSGT_PLAYTREE,MSGL_ERR,"No value in entry %s\n",line);
 303       else
 304         entries[num-1].length = strdup(v);
 305     } else
 306       mp_msg(MSGT_PLAYTREE,MSGL_WARN,"Unknown entry type %s\n",line);
 307     line = play_tree_parser_get_line(p);
 308   }
 309
 310   for(num = 0; num < max_entry ; num++) {
 311     if(entries[num].file == NULL)
 312       mp_msg(MSGT_PLAYTREE,MSGL_ERR,"Entry %d don't have a file !!!!\n",num+1);
 313     else {
 314       mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Adding entry %s\n",entries[num].file);
 315       entry = play_tree_new();
 316       play_tree_add_file(entry,entries[num].file);
 317       free(entries[num].file);
 318       if(list)
 319         play_tree_append_entry(last_entry,entry);
 320       else
 321         list = entry;
 322       last_entry = entry;
 323     }
 324     if(entries[num].title) {
 325       // When we have info in playtree we add this info
 326       free(entries[num].title);
 327     }
 328     if(entries[num].length) {
 329       // When we have info in playtree we add this info
 330       free(entries[num].length);
 331     }
 332   }
 333
 334   free(entries);
 335
 336   entry = play_tree_new();
 337   play_tree_set_child(entry,list);
 338   return entry;
 339 }
 340
 341 /*
 342  Reference Ini-Format: Each entry is assumed a reference
 343  */
 344 static play_tree_t*
 345 parse_ref_ini(play_tree_parser_t* p) {
 346   char *line,*v;
 347   play_tree_t *list = NULL, *entry = NULL, *last_entry = NULL;
 348
 349   mp_msg(MSGT_PLAYTREE,MSGL_V,"Trying reference-ini playlist...\n");
 350   if (!(line = play_tree_parser_get_line(p)))
 351     return NULL;
 352   strstrip(line);
 353   if(strcasecmp(line,"[Reference]"))
 354     return NULL;
 355   mp_msg(MSGT_PLAYTREE,MSGL_V,"Detected reference-ini playlist format\n");
 356   play_tree_parser_stop_keeping(p);
 357   line = play_tree_parser_get_line(p);
 358   if(!line)
 359     return NULL;
 360   while(line) {
 361     strstrip(line);
 362     if(strncasecmp(line,"Ref",3) == 0) {
 363       v = pls_entry_get_value(line+3);
 364       if(!v)
 365         mp_msg(MSGT_PLAYTREE,MSGL_ERR,"No value in entry %s\n",line);
 366       else
 367       {
 368         mp_msg(MSGT_PLAYTREE,MSGL_DBG2,"Adding entry %s\n",v);
 369         entry = play_tree_new();
 370         play_tree_add_file(entry,v);
 371         if(list)
 372           play_tree_append_entry(last_entry,entry);
 373         else
 374           list = entry;
 375         last_entry = entry;
 376       }
 377     }
 378     line = play_tree_parser_get_line(p);
 379   }
 380
 381   if(!list) return NULL;
 382   entry = play_tree_new();
 383   play_tree_set_child(entry,list);
 384   return entry;
 385 }
 386
 387 static play_tree_t*
 388 parse_m3u(play_tree_parser_t* p) {
 389   char* line;
 390   play_tree_t *list = NULL, *entry = NULL, *last_entry = NULL;
 391
 392   mp_msg(MSGT_PLAYTREE,MSGL_V,"Trying extended m3u playlist...\n");
 393   if (!(line = play_tree_parser_get_line(p)))
 394     return NULL;
 395   strstrip(line);
 396   if(strcasecmp(line,"#EXTM3U"))
 397     return NULL;
 398   mp_msg(MSGT_PLAYTREE,MSGL_V,"Detected extended m3u playlist format\n");
 399   play_tree_parser_stop_keeping(p);
 400
 401   while((line = play_tree_parser_get_line(p)) != NULL) {
 402     strstrip(line);
 403     if(line[0] == '\0')
 404       continue;
 405     /* EXTM3U files contain such lines:
 406      * #EXTINF:<seconds>, <title>
 407      * followed by a line with the filename
 408      * for now we have no place to put that
 409      * so we just skip that extra-info ::atmos
 410      */
 411     if(line[0] == '#') {
 412 #if 0 /* code functional */
 413       if(strncasecmp(line,"#EXTINF:",8) == 0) {
 414         mp_msg(MSGT_PLAYTREE,MSGL_INFO,"[M3U] Duration: %dsec  Title: %s\n",
 415           strtol(line+8,&line,10), line+2);
 416       }
 417 #endif
 418       continue;
 419     }
 420     entry = play_tree_new();
 421     play_tree_add_file(entry,line);
 422     if(!list)
 423       list = entry;
 424     else
 425       play_tree_append_entry(last_entry,entry);
 426     last_entry = entry;
 427   }
 428
 429   if(!list) return NULL;
 430   entry = play_tree_new();
 431   play_tree_set_child(entry,list);
 432   return entry;
 433 }
 434
 435 static play_tree_t*
 436 parse_smil(play_tree_parser_t* p) {
 437   int entrymode=0;
 438   char* line,source[512],*pos,*s_start,*s_end,*src_line;
 439   play_tree_t *list = NULL, *entry = NULL, *last_entry = NULL;
 440   int is_rmsmil = 0;
 441   unsigned int npkt, ttlpkt;
 442
 443   mp_msg(MSGT_PLAYTREE,MSGL_V,"Trying smil playlist...\n");
 444
 445   // Check if smil
 446   while((line = play_tree_parser_get_line(p)) != NULL) {
 447     strstrip(line);
 448     if(line[0] == '\0') // Ignore empties
 449       continue;
 450     if (strncasecmp(line,"<smil",5)==0 || strncasecmp(line,"<?wpl",5)==0 ||
 451       strncasecmp(line,"(smil-document",14)==0)
 452       break; // smil header found
 453     else
 454       return NULL; //line not smil exit
 455   }
 456
 457   mp_msg(MSGT_PLAYTREE,MSGL_V,"Detected smil playlist format\n");
 458   play_tree_parser_stop_keeping(p);
 459
 460   if (strncasecmp(line,"(smil-document",14)==0) {
 461     mp_msg(MSGT_PLAYTREE,MSGL_V,"Special smil-over-realrtsp playlist header\n");
 462     is_rmsmil = 1;
 463     if (sscanf(line, "(smil-document (ver 1.0)(npkt %u)(ttlpkt %u", &npkt, &ttlpkt) != 2) {
 464       mp_msg(MSGT_PLAYTREE,MSGL_WARN,"smil-over-realrtsp: header parsing failure, assuming single packet.\n");
 465       npkt = ttlpkt = 1;
 466     }
 467     if (ttlpkt == 0 || npkt > ttlpkt) {
 468       mp_msg(MSGT_PLAYTREE,MSGL_WARN,"smil-over-realrtsp: bad packet counters (npkk = %u, ttlpkt = %u), assuming single packet.\n",
 469         npkt, ttlpkt);
 470       npkt = ttlpkt = 1;
 471     }
 472   }
 473
 474   //Get entries from smil
 475   line = NULL;
 476   while((src_line = play_tree_parser_get_line(p)) != NULL) {
 477     strstrip(src_line);
 478     if (line) {
 479       free(line);
 480       line = NULL;
 481     }
 482     /* If we're parsing smil over realrtsp and this is not the last packet and
 483      * this is the last line in the packet (terminating with ") ) we must get
 484      * the next line, strip the header, and concatenate it to the current line.
 485      */
 486     if (is_rmsmil && npkt != ttlpkt && strstr(src_line,"\")")) {
 487       char *payload;
 488
 489       line = strdup(src_line);
 490       if(!(src_line = play_tree_parser_get_line(p))) {
 491         mp_msg(MSGT_PLAYTREE,MSGL_WARN,"smil-over-realrtsp: can't get line from packet %u/%u.\n", npkt, ttlpkt);
 492         break;
 493       }
 494       strstrip(src_line);
 495       // Skip header, packet starts after "
 496       if(!(payload = strchr(src_line,'\"'))) {
 497         mp_msg(MSGT_PLAYTREE,MSGL_WARN,"smil-over-realrtsp: can't find start of packet, using complete line.\n");
 498         payload = src_line;
 499       } else
 500         payload++;
 501       // Skip ") at the end of the last line from the current packet
 502       line[strlen(line)-2] = 0;
 503       line = realloc(line, strlen(line)+strlen(payload));
 504       strcat (line, payload);
 505       npkt++;
 506     } else
 507       line = strdup(src_line);
 508     /* Unescape \" to " for smil-over-rtsp */
 509     if (is_rmsmil && line[0] != '\0') {
 510       int i, j;
 511
 512       for (i = 0; i < strlen(line); i++)
 513         if (line[i] == '\\' && line[i+1] == '"')
 514           for (j = i; line[j]; j++)
 515             line[j] = line[j+1];
 516     }
 517     if (line[0]=='\0')
 518       continue;
 519     if (!entrymode) { // all entries filled so far
 520       if (strncasecmp(line,"<video",6)==0  || strncasecmp(line,"<audio",6)==0 || strncasecmp(line,"<media",6)==0) {
 521         pos=strstr(line,"src=");   // Is source present on this line
 522         if (pos !=NULL) {
 523           s_start=pos+5;
 524           s_end=strchr(s_start,'"');
 525             if (s_end == NULL) {
 526               mp_msg(MSGT_PLAYTREE,MSGL_V,"Error parsing this source line %s\n",line);
 527               continue;
 528             }
 529           if (s_end-s_start> 511) {
 530             mp_msg(MSGT_PLAYTREE,MSGL_V,"Cannot store such a large source %s\n",line);
 531             continue;
 532           }
 533           strncpy(source,s_start,s_end-s_start);
 534           source[(s_end-s_start)]='\0'; // Null terminate
 535           entry = play_tree_new();
 536           play_tree_add_file(entry,source);
 537           if(!list)  //Insert new entry
 538             list = entry;
 539           else
 540             play_tree_append_entry(last_entry,entry);
 541           last_entry = entry;
 542         } else {
 543           entrymode=1;
 544         }
 545       }
 546     } else { //Entry found but not yet filled
 547       pos = strstr(line,"src=");   // Is source present on this line
 548       if (pos != NULL) {
 549         entrymode=0;
 550         s_start=pos+5;
 551         s_end=strchr(s_start,'"');
 552         if (s_end == NULL) {
 553           mp_msg(MSGT_PLAYTREE,MSGL_V,"Error parsing this source line %s\n",line);
 554           continue;
 555         }
 556         if (s_end-s_start> 511) {
 557           mp_msg(MSGT_PLAYTREE,MSGL_V,"Cannot store such a large source %s\n",line);
 558           continue;
 559         }
 560         strncpy(source,s_start,s_end-s_start);
 561         source[(s_end-s_start)]='\0'; // Null terminate
 562         entry = play_tree_new();
 563         play_tree_add_file(entry,source);
 564         if(!list)  //Insert new entry
 565           list = entry;
 566         else
 567           play_tree_append_entry(last_entry,entry);
 568         last_entry = entry;
 569       }
 570     }
 571   }
 572
 573   if (line)
 574     free(line);
 575
 576   if(!list) return NULL; // Nothing found
 577
 578   entry = play_tree_new();
 579   play_tree_set_child(entry,list);
 580   return entry;
 581 }
 582
 583 static play_tree_t*
 584 embedded_playlist_parse(char *line) {
 585   int f=DEMUXER_TYPE_PLAYLIST;
 586   stream_t* stream;
 587   play_tree_parser_t* ptp;
 588   play_tree_t* entry;
 589
 590   // Get stream opened to link
 591   stream=open_stream(line,0,&f);
 592   if(!stream) {
 593     mp_msg(MSGT_PLAYTREE,MSGL_WARN,"Can't open playlist %s\n",line);
 594     return NULL;
 595   }
 596
 597   //add new playtree
 598   mp_msg(MSGT_PLAYTREE,MSGL_V,"Adding playlist %s to element entryref\n",line);
 599
 600   ptp = play_tree_parser_new(stream,1);
 601   entry = play_tree_parser_get_play_tree(ptp, 1);
 602   play_tree_parser_free(ptp);
 603   free_stream(stream);
 604
 605   return entry;
 606 }
 607
 608 static play_tree_t*
 609 parse_textplain(play_tree_parser_t* p) {
 610   char* line;
 611   char *c;
 612   int embedded;
 613   play_tree_t *list = NULL, *entry = NULL, *last_entry = NULL;
 614
 615   mp_msg(MSGT_PLAYTREE,MSGL_V,"Trying plaintext playlist...\n");
 616   play_tree_parser_stop_keeping(p);
 617
 618   while((line = play_tree_parser_get_line(p)) != NULL) {
 619     strstrip(line);
 620     if(line[0] == '\0' || line[0] == '#' || (line[0] == '/' && line[1] == '/'))
 621       continue;
 622
 623     //Special check for embedded smil or ram reference in file
 624     embedded = 0;
 625     if (strlen(line) > 5)
 626       for(c = line; c[0]; c++ )
 627         if ( ((c[0] == '.') && //start with . and next have smil with optional ? or &
 628            (tolower(c[1]) == 's') && (tolower(c[2])== 'm') &&
 629            (tolower(c[3]) == 'i') && (tolower(c[4]) == 'l') &&
 630            (!c[5] || c[5] == '?' || c[5] == '&')) || // or
 631           ((c[0] == '.') && // start with . and next have smi or ram with optional ? or &
 632           ( ((tolower(c[1]) == 's') && (tolower(c[2])== 'm') && (tolower(c[3]) == 'i')) ||
 633             ((tolower(c[1]) == 'r') && (tolower(c[2])== 'a') && (tolower(c[3]) == 'm')) )
 634            && (!c[4] || c[4] == '?' || c[4] == '&')) ){
 635           entry=embedded_playlist_parse(line);
 636           embedded = 1;
 637           break;
 638         }
 639
 640     if (!embedded) {      //regular file link
 641       entry = play_tree_new();
 642       play_tree_add_file(entry,line);
 643     }
 644
 645     if (entry != NULL) {
 646       if(!list)
 647         list = entry;
 648       else
 649         play_tree_append_entry(last_entry,entry);
 650       last_entry = entry;
 651     }
 652   }
 653
 654   if(!list) return NULL;
 655   entry = play_tree_new();
 656   play_tree_set_child(entry,list);
 657   return entry;
 658 }
 659
 660 play_tree_t*
 661 parse_playtree(stream_t *stream, int forced) {
 662   play_tree_parser_t* p;
 663   play_tree_t* ret;
 664
 665 #ifdef MP_DEBUG
 666   assert(stream != NULL);
 667 #endif
 668
 669   p = play_tree_parser_new(stream,0);
 670   if(!p)
 671     return NULL;
 672
 673   ret = play_tree_parser_get_play_tree(p, forced);
 674   play_tree_parser_free(p);
 675
 676   return ret;
 677 }
 678
 679 static void
 680 play_tree_add_basepath(play_tree_t* pt, char* bp) {
 681   int i,bl = strlen(bp),fl;
 682
 683   if(pt->child) {
 684     play_tree_t* i;
 685     for(i = pt->child ; i != NULL ; i = i->next)
 686       play_tree_add_basepath(i,bp);
 687     return;
 688   }
 689
 690   if(!pt->files)
 691     return;
 692
 693   for(i = 0 ; pt->files[i] != NULL ; i++) {
 694     fl = strlen(pt->files[i]);
 695     // if we find a full unix path, url:// or X:\ at the beginning,
 696     // don't mangle it.
 697     if(fl <= 0 || strstr(pt->files[i],"://") || (strstr(pt->files[i],":\\") == pt->files[i] + 1) || (pt->files[i][0] == '/') )
 698       continue;
 699     // if the path begins with \ then prepend drive letter to it.
 700     if (pt->files[i][0] == '\\') {
 701       if (pt->files[i][1] == '\\')
 702         continue;
 703       pt->files[i] = (char*)realloc(pt->files[i],2+fl+1);
 704       memmove(pt->files[i] + 2,pt->files[i],fl+1);
 705       memcpy(pt->files[i],bp,2);
 706       continue;
 707     }
 708     pt->files[i] = (char*)realloc(pt->files[i],bl+fl+1);
 709     memmove(pt->files[i] + bl,pt->files[i],fl+1);
 710     memcpy(pt->files[i],bp,bl);
 711   }
 712 }
 713
 714 // Wrapper for play_tree_add_basepath (add base path from file)
 715 void play_tree_add_bpf(play_tree_t* pt, char* filename)
 716 {
 717   char *ls, *file;
 718
 719   if (pt && filename)
 720   {
 721     file = strdup(filename);
 722     if (file)
 723     {
 724       ls = strrchr(file,'/');
 725       if(!ls) ls = strrchr(file,'\\');
 726       if(ls) {
 727         ls[1] = '\0';
 728         play_tree_add_basepath(pt,file);
 729       }
 730       free(file);
 731     }
 732   }
 733 }
 734
 735 play_tree_t*
 736 parse_playlist_file(char* file) {
 737   stream_t *stream;
 738   play_tree_t* ret;
 739   int f=DEMUXER_TYPE_PLAYLIST;
 740
 741   stream = open_stream(file,0,&f);
 742
 743   if(!stream) {
 744     mp_msg(MSGT_PLAYTREE,MSGL_ERR,"Error while opening playlist file %s: %s\n",file,strerror(errno));
 745     return NULL;
 746   }
 747
 748   mp_msg(MSGT_PLAYTREE,MSGL_V,"Parsing playlist file %s...\n",file);
 749
 750   ret = parse_playtree(stream,1);
 751   free_stream(stream);
 752
 753   play_tree_add_bpf(ret, file);
 754
 755   return ret;
 756
 757 }
 758
 759
 760 play_tree_parser_t*
 761 play_tree_parser_new(stream_t* stream,int deep) {
 762   play_tree_parser_t* p;
 763
 764   p = calloc(1,sizeof(play_tree_parser_t));
 765   if(!p)
 766     return NULL;
 767   p->stream = stream;
 768   p->deep = deep;
 769   p->keep = 1;
 770
 771   return p;
 772
 773 }
 774
 775 void
 776 play_tree_parser_free(play_tree_parser_t* p) {
 777
 778 #ifdef MP_DEBUG
 779   assert(p != NULL);
 780 #endif
 781
 782   if(p->buffer) free(p->buffer);
 783   if(p->line) free(p->line);
 784   free(p);
 785 }
 786
 787 play_tree_t*
 788 play_tree_parser_get_play_tree(play_tree_parser_t* p, int forced) {
 789   play_tree_t* tree = NULL;
 790
 791 #ifdef MP_DEBUG
 792   assert(p != NULL);
 793 #endif
 794
 795
 796   while(play_tree_parser_get_line(p) != NULL) {
 797     play_tree_parser_reset(p);
 798
 799     tree = parse_asx(p);
 800     if(tree) break;
 801     play_tree_parser_reset(p);
 802
 803     tree = parse_pls(p);
 804     if(tree) break;
 805     play_tree_parser_reset(p);
 806
 807     tree = parse_m3u(p);
 808     if(tree) break;
 809     play_tree_parser_reset(p);
 810
 811     tree = parse_ref_ini(p);
 812     if(tree) break;
 813     play_tree_parser_reset(p);
 814
 815     tree = parse_smil(p);
 816     if(tree) break;
 817     play_tree_parser_reset(p);
 818
 819     // Here come the others formats ( textplain must stay the last one )
 820     if (forced)
 821     {
 822       tree = parse_textplain(p);
 823       if(tree) break;
 824     }
 825     break;
 826   }
 827
 828   if(tree)
 829     mp_msg(MSGT_PLAYTREE,MSGL_V,"Playlist successfully parsed\n");
 830   else
 831     mp_msg(MSGT_PLAYTREE,((forced==1)?MSGL_ERR:MSGL_V),"Error while parsing playlist\n");
 832
 833   if(tree)
 834     tree = play_tree_cleanup(tree);
 835
 836   if(!tree) mp_msg(MSGT_PLAYTREE,((forced==1)?MSGL_WARN:MSGL_V),"Warning: empty playlist\n");
 837
 838   return tree;
 839 }