summaryrefslogtreecommitdiffstats
path: root/subreader.c
blob: d9e31c247d758ee77ce7758c867c6f80a2d09916 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
/*
 * Subtitle reader with format autodetection
 *
 * Written by laaz
 * Some code cleanup & realloc() by A'rpi/ESP-team
 * dunnowhat sub format by szabi
 */


#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

#include "config.h"
#include "subreader.h"

#define ERR (void *)-1

#ifdef USE_ICONV
#ifdef __FreeBSD__
#include <giconv.h>
#else
#include <iconv.h>
#endif
char *sub_cp=NULL;
#endif

/* Maximal length of line of a subtitle */
#define LINE_LEN 1000

static float mpsub_position=0;

int sub_uses_time=0;
int sub_errs=0;
int sub_num=0;          // number of subtitle structs
int sub_slacktime=2000; // 20 seconds

/* Use the SUB_* constant defined in the header file */
int sub_format=SUB_INVALID;

int eol(char p) {
    return (p=='\r' || p=='\n' || p=='\0');
}

static inline void trail_space(char *s) {
	int i;
	while (isspace(*s)) strcpy(s, s + 1);
	i = strlen(s) - 1;
	while (i > 0 && isspace(s[i])) s[i--] = '\0';
}


subtitle *sub_read_line_sami(FILE *fd, subtitle *current) {
    static char line[LINE_LEN+1];
    static char *s = NULL, *slacktime_s;
    char text[LINE_LEN+1], *p, *q;
    int state;

    current->lines = current->start = current->end = 0;
    state = 0;

    /* read the first line */
    if (!s)
	    if (!(s = fgets(line, LINE_LEN, fd))) return 0;

    do {
	switch (state) {

	case 0: /* find "START=" or "Slacktime:" */
	    slacktime_s = strstr (s, "Slacktime:");
	    if (slacktime_s) sub_slacktime = strtol (slacktime_s + 10, NULL, 0) / 10;

	    s = strstr (s, "Start=");
	    if (s) {
		current->start = strtol (s + 6, &s, 0) / 10;
		state = 1; continue;
	    }
	    break;
 
	case 1: /* find "<P" */
	    if ((s = strstr (s, "<P"))) { s += 2; state = 2; continue; }
	    break;
 
	case 2: /* find ">" */
	    if ((s = strchr (s, '>'))) { s++; state = 3; p = text; continue; }
	    break;
 
	case 3: /* get all text until '<' appears */
	    if (*s == '\0') break;
	    else if (!strncasecmp (s, "<br>", 4)) {
		*p = '\0'; p = text; trail_space (text);
		if (text[0] != '\0')
		    current->text[current->lines++] = strdup (text);
		s += 4;
	    }
	    else if (*s == '<') { state = 4; }
	    else if (!strncasecmp (s, "&nbsp;", 6)) { *p++ = ' '; s += 6; }
	    else if (*s == '\t') { *p++ = ' '; s++; }
	    else if (*s == '\r' || *s == '\n') { s++; }
	    else *p++ = *s++;

	    /* skip duplicated space */
	    if (p > text + 2) if (*(p-1) == ' ' && *(p-2) == ' ') p--;
	    
	    continue;

	case 4: /* get current->end or skip <TAG> */
	    q = strstr (s, "Start=");
	    if (q) {
		current->end = strtol (q + 6, &q, 0) / 10 - 1;
		*p = '\0'; trail_space (text);
		if (text[0] != '\0')
		    current->text[current->lines++] = strdup (text);
		if (current->lines > 0) { state = 99; break; }
		state = 0; continue;
	    }
	    s = strchr (s, '>');
	    if (s) { s++; state = 3; continue; }
	    break;
	}

	/* read next line */
	if (state != 99 && !(s = fgets (line, LINE_LEN, fd)))
	    if (current->start > 0) break; // if it is the last subtitle
	    else return 0;
	    
    } while (state != 99);

    // For the last subtitle
    if (current->end <= 0) {
        current->end = current->start + sub_slacktime;
	*p = '\0'; trail_space (text);
	if (text[0] != '\0')
	    current->text[current->lines++] = strdup (text);
    }
    
    return current;
}


char *sub_readtext(char *source, char **dest) {
    int len=0;
    char *p=source;
    
    while ( !eol(*p) && *p!= '|' ) {
	p++,len++;
    }
    
    *dest= (char *)malloc (len+1);
    if (!dest) {return ERR;}
    
    strncpy(*dest, source, len);
    (*dest)[len]=0;
    
    while (*p=='\r' || *p=='\n' || *p=='|') p++;
    
    if (*p) return p;  // not-last text field
    else return NULL;  // last text field
}

subtitle *sub_read_line_microdvd(FILE *fd,subtitle *current) {
    char line[LINE_LEN+1];
    char line2[LINE_LEN+1];
    char *p, *next;
    int i;

    bzero (current, sizeof(subtitle));

    do {
	if (!fgets (line, LINE_LEN, fd)) return NULL;
    } while (sscanf (line, "{%ld}{%ld}%[^\r\n]", &(current->start), &(current->end),line2) <3);

    p=line2;

    next=p, i=0;
    while ((next =sub_readtext (next, &(current->text[i])))) {
        if (current->text[i]==ERR) {return ERR;}
	i++;
	if (i>=SUB_MAX_TEXT) { printf ("Too many lines in a subtitle\n");current->lines=i;return current;}
    }
    current->lines= ++i;

    return current;
}

subtitle *sub_read_line_subrip(FILE *fd, subtitle *current) {
    char line[LINE_LEN+1];
    int a1,a2,a3,a4,b1,b2,b3,b4;
    char *p=NULL, *q=NULL;
    int len;
    
    bzero (current, sizeof(subtitle));
    
    while (1) {
	if (!fgets (line, LINE_LEN, fd)) return NULL;
	if (sscanf (line, "%d:%d:%d.%d,%d:%d:%d.%d",&a1,&a2,&a3,&a4,&b1,&b2,&b3,&b4) < 8) continue;
	current->start = a1*360000+a2*6000+a3*100+a4;
	current->end   = b1*360000+b2*6000+b3*100+b4;

	if (!fgets (line, LINE_LEN, fd)) return NULL;

	p=q=line;
	for (current->lines=1; current->lines < SUB_MAX_TEXT; current->lines++) {
	    for (q=p,len=0; *p && *p!='\r' && *p!='\n' && strncmp(p,"[br]",4); p++,len++);
	    current->text[current->lines-1]=(char *)malloc (len+1);
	    if (!current->text[current->lines-1]) return ERR;
	    strncpy (current->text[current->lines-1], q, len);
	    current->text[current->lines-1][len]='\0';
	    if (!*p || *p=='\r' || *p=='\n') break;
	    while (*p++!=']');
	}
	break;
    }
    return current;
}

subtitle *sub_read_line_subviewer(FILE *fd,subtitle *current) {
    char line[LINE_LEN+1];
    int a1,a2,a3,a4,b1,b2,b3,b4;
    char *p=NULL;
    int i,len;
    
    bzero (current, sizeof(subtitle));
    
    while (!current->text[0]) {
	if (!fgets (line, LINE_LEN, fd)) return NULL;
	if ((len=sscanf (line, "%d:%d:%d,%d --> %d:%d:%d,%d",&a1,&a2,&a3,&a4,&b1,&b2,&b3,&b4)) < 8)
	    continue;
	current->start = a1*360000+a2*6000+a3*100+a4/10;
	current->end   = b1*360000+b2*6000+b3*100+b4/10;
	for (i=0; i<SUB_MAX_TEXT;) {
	    if (!fgets (line, LINE_LEN, fd)) break;
	    len=0;
	    for (p=line; *p!='\n' && *p!='\r' && *p; p++,len++);
	    if (len) {
		current->text[i]=(char *)malloc (len+1);
		if (!current->text[i]) return ERR;
		strncpy (current->text[i], line, len); current->text[i][len]='\0';
		i++;
	    } else {
		break;
	    }
	}
	current->lines=i;
    }
    return current;
}

subtitle *sub_read_line_vplayer(FILE *fd,subtitle *current) {
	char line[LINE_LEN+1];
	char line2[LINE_LEN+1];
	int a1,a2,a3,b1,b2,b3;
	char *p=NULL, *next;
	int i,len,len2,plen;

	bzero (current, sizeof(subtitle));

	while (!current->text[0]) {
		if (!fgets (line, LINE_LEN, fd)) return NULL;
		if ((len=sscanf (line, "%d:%d:%d:%n",&a1,&a2,&a3,&plen)) < 3)
			continue;
		if (!fgets (line2, LINE_LEN, fd)) return NULL;
		if ((len2=sscanf (line2, "%d:%d:%d:",&b1,&b2,&b3)) < 3)
			continue;
		// przewiń o linijkę do tyłu:
		fseek(fd,-strlen(line2),SEEK_CUR);

		current->start = a1*360000+a2*6000+a3*100;
		current->end   = b1*360000+b2*6000+b3*100;
		if ((current->end - current->start) > 1000) {current->end = current->start + 1000;} // not too long though. 
		// teraz czas na wkopiowanie stringu
 		p=line;	
 		// finds the body of the subtitle
 		for (i=0; i<3; i++){              
                   p=strchr(p,':')+1;
                 } 
 		i=0;

		if (*p!='|') {
			//
			next = p,i=0;
			while ((next =sub_readtext (next, &(current->text[i])))) {
				if (current->text[i]==ERR) {return ERR;}
				i++;
				if (i>=SUB_MAX_TEXT) { printf ("Too many lines in a subtitle\n");current->lines=i;return current;}
			}
			current->lines=i+1;
		}
	}
	return current;
}

subtitle *sub_read_line_rt(FILE *fd,subtitle *current) {
	//TODO: This format uses quite rich (sub/super)set of xhtml 
	// I couldn't check it since DTD is not included.
	// WARNING: full XML parses can be required for proper parsing 
    char line[LINE_LEN+1];
    int a1,a2,a3,a4,b1,b2,b3,b4;
    char *p=NULL,*next=NULL;
    int i,len,plen;
    
    bzero (current, sizeof(subtitle));
    
    while (!current->text[0]) {
	if (!fgets (line, LINE_LEN, fd)) return NULL;
	//TODO: it seems that format of time is not easily determined, it may be 1:12, 1:12.0 or 0:1:12.0
	//to describe the same moment in time. Maybe there are even more formats in use.
	//if ((len=sscanf (line, "<Time Begin=\"%d:%d:%d.%d\" End=\"%d:%d:%d.%d\"",&a1,&a2,&a3,&a4,&b1,&b2,&b3,&b4)) < 8)
	plen=a1=a2=a3=a4=b1=b2=b3=b4=0;
	if (
	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d\" %*[Ee]nd=\"%d:%d\"%*[^<]<clear/>%n",&a2,&a3,&b2,&b3,&plen)) < 4) &&
	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d\" %*[Ee]nd=\"%d:%d.%d\"%*[^<]<clear/>%n",&a2,&a3,&b2,&b3,&b4,&plen)) < 5) &&
//	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d.%d\" %*[Ee]nd=\"%d:%d\"%*[^<]<clear/>%n",&a2,&a3,&a4,&b2,&b3,&plen)) < 5) &&
	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d.%d\" %*[Ee]nd=\"%d:%d.%d\"%*[^<]<clear/>%n",&a2,&a3,&a4,&b2,&b3,&b4,&plen)) < 6) &&
	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d:%d.%d\" %*[Ee]nd=\"%d:%d:%d.%d\"%*[^<]<clear/>%n",&a1,&a2,&a3,&a4,&b1,&b2,&b3,&b4,&plen)) < 8) 
	)
	    continue;
	current->start = a1*360000+a2*6000+a3*100+a4/10;
	current->end   = b1*360000+b2*6000+b3*100+b4/10;
	p=line;	p+=plen;i=0;
	// TODO: I don't know what kind of convention is here for marking multiline subs, maybe <br/> like in xml?
	next = strstr(line,"<clear/>")+8;i=0;
	while ((next =sub_readtext (next, &(current->text[i])))) {
		if (current->text[i]==ERR) {return ERR;}
		i++;
		if (i>=SUB_MAX_TEXT) { printf ("Too many lines in a subtitle\n");current->lines=i;return current;}
	}
			current->lines=i+1;
    }
    return current;
}

subtitle *sub_read_line_ssa(FILE *fd,subtitle *current) {
	int hour1, min1, sec1, hunsec1,
	    hour2, min2, sec2, hunsec2, nothing;
	int num;
	
	char line[LINE_LEN+1],
	     line3[LINE_LEN+1],
	     *line2;
	char *tmp;

	do {
		if (!fgets (line, LINE_LEN, fd)) return NULL;
	} while (sscanf (line, "Dialogue: Marked=%d,%d:%d:%d.%d,%d:%d:%d.%d,"
			"%[^\n\r]", &nothing,
			&hour1, &min1, &sec1, &hunsec1, 
			&hour2, &min2, &sec2, &hunsec2,
			line3) < 9);
	line2=strstr(line3,",,");
	if (!line2) return NULL;
	line2 ++;
	line2 ++;

	current->lines=1;num=0;
	current->start = 360000*hour1 + 6000*min1 + 100*sec1 + hunsec1;
	current->end   = 360000*hour2 + 6000*min2 + 100*sec2 + hunsec2;
	
	while (tmp=strstr(line2, "\\n")) {
		current->text[num]=(char *)malloc(tmp-line2+1);
		strncpy (current->text[num], line2, tmp-line2);
		current->text[num][tmp-line2]='\0';
		line2=tmp+2;
		num++;
		current->lines++;
		if (current->lines >=  SUB_MAX_TEXT) return current;
	}


	current->text[num]=(char *) malloc(strlen(line2)+1);
	strcpy(current->text[num],line2);

	return current;
}

subtitle *sub_read_line_dunnowhat(FILE *fd,subtitle *current) {
    char line[LINE_LEN+1];
    char text[LINE_LEN+1];

    bzero (current, sizeof(subtitle));

    if (!fgets (line, LINE_LEN, fd))
	return NULL;
    if (sscanf (line, "%ld,%ld,\"%[^\"]", &(current->start),
		&(current->end), text) <3)
	return ERR;
    current->text[0] = strdup(text);
    current->lines = 1;

    return current;
}

subtitle *sub_read_line_mpsub(FILE *fd, subtitle *current) {
	char line[LINE_LEN+1];
	float a,b;
	int num=0;
	char *p, *q;

	do
	{
		if (!fgets(line, LINE_LEN, fd)) return NULL;
	} while (sscanf (line, "%f %f", &a, &b) !=2);

	mpsub_position += (a*100.0);
	current->start=(int) mpsub_position;
	mpsub_position += (b*100.0);
	current->end=(int) mpsub_position;

	while (num < SUB_MAX_TEXT) {
		if (!fgets (line, LINE_LEN, fd)) return NULL;
		p=line;
		while (isspace(*p)) p++;
		if (eol(*p) && num > 0) return current;
		if (eol(*p)) return NULL;

		for (q=p; !eol(*q); q++);
		*q='\0';
		if (strlen(p)) {
			current->text[num]=strdup(p);
			printf (">%s<\n",p);
			current->lines = ++num;
		} else {
			if (num) return current;
			else return NULL;
		}
	}
}

subtitle *previous_aqt_sub = NULL;

subtitle *sub_read_line_aqt(FILE *fd,subtitle *current) {
    char line[LINE_LEN+1];

    bzero (current, sizeof(subtitle));

    while (1) {
    // try to locate next subtitle
        if (!fgets (line, LINE_LEN, fd))
		return NULL;
        if (!(sscanf (line, "-->> %ld", &(current->start)) <1))
		break;
    }
    
    if (previous_aqt_sub != NULL) 
	previous_aqt_sub->end = current->start-1;
    
    previous_aqt_sub = current;

    if (!fgets (line, LINE_LEN, fd))
	return NULL;

    sub_readtext((char *) &line,&current->text[0]);
    current->lines = 1;
    current->end = current->start; // will be corrected by next subtitle

    if (!fgets (line, LINE_LEN, fd))
	return current;;

    sub_readtext((char *) &line,&current->text[1]);
    current->lines = 2;

    if ((current->text[0]=="") && (current->text[1]=="")) {
	// void subtitle -> end of previous marked and exit
	previous_aqt_sub = NULL;
	return NULL;
	}

    return current;
}

int sub_autodetect (FILE *fd) {
    char line[LINE_LEN+1];
    int i,j=0;
    char p;
    
    while (j < 100) {
	j++;
	if (!fgets (line, LINE_LEN, fd))
	    return SUB_INVALID;

	if (sscanf (line, "{%d}{%d}", &i, &i)==2)
		{sub_uses_time=0;return SUB_MICRODVD;}
	if (sscanf (line, "%d:%d:%d.%d,%d:%d:%d.%d",     &i, &i, &i, &i, &i, &i, &i, &i)==8)
		{sub_uses_time=1;return SUB_SUBRIP;}
	if (sscanf (line, "%d:%d:%d,%d --> %d:%d:%d,%d", &i, &i, &i, &i, &i, &i, &i, &i)==8)
		{sub_uses_time=1;return SUB_SUBVIEWER;}
	if (strstr (line, "<SAMI>"))
		{sub_uses_time=1; return SUB_SAMI;}
	if (sscanf (line, "%d:%d:%d:",     &i, &i, &i )==3)
		{sub_uses_time=1;return SUB_VPLAYER;}
	//TODO: just checking if first line of sub starts with "<" is WAY
	// too weak test for RT
	// Please someone who knows the format of RT... FIX IT!!!
	// It may conflict with other sub formats in the future (actually it doesn't)
	if ( *line == '<' )
		{sub_uses_time=1;return SUB_RT;}

	if (!memcmp(line, "Dialogue: Marked", 16))
		{sub_uses_time=1; return SUB_SSA;}
	if (sscanf (line, "%d,%d,\"%c", &i, &i, (char *) &i) == 3)
		{sub_uses_time=0;return SUB_DUNNOWHAT;}
	if (sscanf (line, "FORMAT=%d", &i) == 1)
		{sub_uses_time=0; return SUB_MPSUB;}
	if (sscanf (line, "FORMAT=TIM%c", &p)==1 && p=='E')
		{sub_uses_time=1; return SUB_MPSUB;}
	if (strstr (line, "-->>"))
		{sub_uses_time=0; return SUB_MPSUB;}
    }

    return SUB_INVALID;  // too many bad lines
}

#ifdef DUMPSUBS
int sub_utf8=0;
#else
extern int sub_utf8;
#endif

#ifdef USE_ICONV
static iconv_t icdsc;

void	subcp_open (void)
{
	char *tocp = "UTF-8";
	icdsc = (iconv_t)(-1);
	if (sub_cp){
		if ((icdsc = iconv_open (tocp, sub_cp)) != (iconv_t)(-1)){
			printf ("SUB: opened iconv descriptor.\n");
			sub_utf8 = 2;
		} else
			printf ("SUB: error opening iconv descriptor.\n");
	}
}

void	subcp_close (void)
{
	if (icdsc != (iconv_t)(-1)){
		(void) iconv_close (icdsc);
	   	printf ("SUB: closed iconv descriptor.\n");
	}
}

#define ICBUFFSIZE 512
static char icbuffer[ICBUFFSIZE];

subtitle* subcp_recode (subtitle *sub)
{
	int l=sub->lines;
	size_t ileft, oleft, otlen;
	char *op, *ip, *ot;

	while (l){
		op = icbuffer;
		ip = sub->text[--l];
		ileft = strlen(ip);
		oleft = ICBUFFSIZE - 1;
		
		if (iconv(icdsc, (const char **) &ip, &ileft,
			  &op, &oleft) == (size_t)(-1)) {
			printf ("SUB: error recoding line.\n");
			l++;
			break;
		}
		if (!(ot = (char *)malloc(op - icbuffer + 1))){
			printf ("SUB: error allocating mem.\n");
			l++;
		   	break;
		}
		*op='\0' ;
		strcpy (ot, icbuffer);
		free (sub->text[l]);
		sub->text[l] = ot;
	}
	if (l){
		for (l = sub->lines; l;)
			free (sub->text[--l]);
		return ERR;
	}
	return sub;
}

#endif

subtitle* sub_read_file (char *filename) {
    FILE *fd;
    int n_max;
    subtitle *first;
    subtitle * (*func[])(FILE *fd,subtitle *dest)=
    {
	    sub_read_line_microdvd,
	    sub_read_line_subrip,
	    sub_read_line_subviewer,
	    sub_read_line_sami,
	    sub_read_line_vplayer,
	    sub_read_line_rt,
	    sub_read_line_ssa,
	    sub_read_line_dunnowhat,
	    sub_read_line_mpsub,
	    sub_read_line_aqt

    };
    if(filename==NULL) return NULL; //qnx segfault
    fd=fopen (filename, "r"); if (!fd) return NULL;

    sub_format=sub_autodetect (fd);
    if (sub_format==SUB_INVALID) {printf ("SUB: Could not determine file format\n");return NULL;}
    printf ("SUB: Detected subtitle file format: %d\n",sub_format);
    
    rewind (fd);

#ifdef USE_ICONV
    subcp_open();
#endif

    sub_num=0;n_max=32;
    first=(subtitle *)malloc(n_max*sizeof(subtitle));
    if(!first) return NULL;
    
    while(1){
        subtitle *sub;
        if(sub_num>=n_max){
            n_max+=16;
            first=realloc(first,n_max*sizeof(subtitle));
        }
        sub=func[sub_format](fd,&first[sub_num]);
        if(!sub) break;   // EOF
#ifdef USE_ICONV
	if ((sub!=ERR) && (sub_utf8 & 2)) sub=subcp_recode(sub);
#endif
        if(sub==ERR) ++sub_errs; else ++sub_num; // Error vs. Valid
    }
    
    fclose(fd);

#ifdef USE_ICONV
    subcp_close();
#endif

//    printf ("SUB: Subtitle format %s time.\n", sub_uses_time?"uses":"doesn't use");
    printf ("SUB: Read %i subtitles", sub_num);
    if (sub_errs) printf (", %i bad line(s).\n", sub_errs);
    else 	  printf (".\n");

    if(sub_num<=0){
	free(first);
	return NULL;
    }

    return first;
}

#if 0
char * strreplace( char * in,char * what,char * whereof )
{
 int i;
 char * tmp;
 
 if ( ( in == NULL )||( what == NULL )||( whereof == NULL )||( ( tmp=strstr( in,what ) ) == NULL ) ) return NULL;
 for( i=0;i<strlen( whereof );i++ ) tmp[i]=whereof[i];
 if ( strlen( what ) > strlen( whereof ) ) tmp[i]=0;
 return in;
}
#endif

char * sub_filename(char* path,  char * fname )
{
 char * sub_name1;
 char * sub_name2;
 char * aviptr1, * aviptr2, * tmp;
 int    i,j;
 FILE * f;
 int pos=0;
 char * sub_exts[] = 
  { ".utf",
    ".UTF",
    ".sub",
    ".SUB",
    ".srt",
    ".SRT",
    ".smi",
    ".SMI",
    ".rt",
    ".RT",
    ".txt",
    ".TXT",
    ".ssa",
    ".SSA",
    ".aqt",
    ".AQT"};


 if ( fname == NULL ) return NULL;
 
 sub_name1=strrchr(fname,'.');
 if (!sub_name1) return NULL;
 pos=sub_name1-fname;
 
 sub_name1=malloc(strlen(fname)+8);
 strcpy(sub_name1,fname);

 sub_name2=malloc (strlen(path) + strlen(fname) + 8);
 if ((tmp=strrchr(fname,'/')))
	 sprintf (sub_name2, "%s%s", path, tmp+1);
 else
	 sprintf (sub_name2, "%s%s", path, fname);
 
 aviptr1=strrchr(sub_name1,'.');
 aviptr2=strrchr(sub_name2,'.');
 
 for(j=0;j<=1;j++){
  char* sub_name=j?sub_name1:sub_name2;
#ifdef USE_ICONV
  for ( i=(sub_cp?2:0);i<(sizeof(sub_exts)/sizeof(char*));i++ ) {
#else
  for ( i=0;i<(sizeof(sub_exts)/sizeof(char*));i++ ) {
#endif	  
   strcpy(j?aviptr1:aviptr2,sub_exts[i]);
//   printf("trying: '%s'\n",sub_name);
   if((f=fopen( sub_name,"rt" ))) {
     fclose( f );
     printf( "SUB: Detected sub file: %s\n",sub_name );
     if (i<2) sub_utf8=1;
     return sub_name;
   }
  }
 }
 
 return NULL;
}

void list_sub_file(subtitle* subs){
    int i,j;

    for(j=0;j<sub_num;j++){
	subtitle* egysub=&subs[j];
        printf ("%i line%c (%li-%li) ",
		    egysub->lines,
		    (1==egysub->lines)?' ':'s',
		    egysub->start,
		    egysub->end);
	for (i=0; i<egysub->lines; i++) {
	    printf ("%s%s",egysub->text[i], i==egysub->lines-1?"":" <BREAK> ");
	}
	printf ("\n");
    }

    printf ("Subtitle format %s time.\n", sub_uses_time?"uses":"doesn't use");
    printf ("Read %i subtitles, %i errors.\n", sub_num, sub_errs);

}

void dump_mpsub(subtitle* subs){
	int i,j;
	FILE *fd;
	float a,b;

	mpsub_position=0.0;

	fd=fopen ("dump.mpsub", "w");
	if (!fd) {
		perror ("dump_mpsub: fopen");
		return;
	}
	

	if (sub_uses_time) fprintf (fd,"FORMAT=TIME\n\n");
	else fprintf (fd, "FORMAT=25\n\n");  // FIXME: fps

	for(j=0;j<sub_num;j++){
		subtitle* egysub=&subs[j];
		if (sub_uses_time) {
			a=((egysub->start-mpsub_position)/100.0);
			b=((egysub->end-egysub->start)/100.0);
			if ( (float)((int)a) == a)
			fprintf (fd, "%.0f",a);
			else
			fprintf (fd, "%.2f",a);
			    
			if ( (float)((int)b) == b)
			fprintf (fd, " %.0f\n",b);
			else
			fprintf (fd, " %.2f\n",b);
		} else {
			fprintf (fd, "%ld %ld\n", egysub->start-mpsub_position,
					egysub->end-egysub->start);
		}

		mpsub_position = egysub->end;
		for (i=0; i<egysub->lines; i++) {
			fprintf (fd, "%s\n",egysub->text[i]);
		}
		fprintf (fd, "\n");
	}
	fclose (fd);
	printf ("Subtitles dumped in \'dump.mpsub\'.\n");
}



#ifdef DUMPSUBS
int main(int argc, char **argv) {  // for testing

    int i,j;
    subtitle *subs;
    subtitle *egysub;
    
    if(argc<2){
        printf("\nUsage: subreader filename.sub\n\n");
        exit(1);
    }
    sub_cp = argv[2]; 
    subs=sub_read_file(argv[1]);
    if(!subs){
        printf("Couldn't load file... let's write a bugreport :)\n");
        exit(1);
    }
    
    list_sub_file(subs);

    return 0;
}
#endif