/* * Subtitle reader with format autodetection * * Written by laaz * Some code cleanup & realloc() by A'rpi/ESP-team * dunnowhat sub format by szabi */ #include #include #include #include #include "config.h" #include "mp_msg.h" #include "subreader.h" #define ERR ((void *) -1) #ifdef USE_ICONV #include 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; #ifdef USE_SORTSUB /* Some subtitling formats, namely AQT and Subrip09, define the end of a subtitle as the beginning of the following. Since currently we read one subtitle at time, for these format we keep two global *subtitle, previous_aqt_sub and previous_subrip09_sub, pointing to previous subtitle, so we can change its end when we read current subtitle starting time. When USE_SORTSUB is defined, we use a single global unsigned long, previous_sub_end, for both (and even future) formats, to store the end of the previous sub: it is initialized to 0 in sub_read_file and eventually modified by sub_read_aqt_line or sub_read_subrip09_line. */ unsigned long previous_sub_end; #endif static int eol(char p) { return (p=='\r' || p=='\n' || p=='\0'); } /* Remove leading and trailing space */ static void trail_space(char *s) { int i = 0; while (isspace(s[i])) ++i; if (i) strcpy(s, s + i); 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=NULL, *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 "" */ 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, "
", 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, " ", 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 */ 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; // printf("src=%p dest=%p \n",source,dest); 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; do { if (!fgets (line, LINE_LEN, fd)) return NULL; } while ((sscanf (line, "{%ld}{}%[^\r\n]", &(current->start), line2) < 2) && (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) { mp_msg(MSGT_SUBREADER,MSGL_WARN,"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; 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' && *p!='|' && 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; if (*p=='|') p++; else 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; 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; itext[i]=(char *)malloc (len+1); if (!current->text[i]) return ERR; //strncpy (current->text[i], line, len); current->text[i][len]='\0'; for(; j') { skip=0; continue; } if(line[j]=='<') { skip=1; continue; } if(skip) { continue; } *curptr=line[j]; curptr++; } *curptr='\0'; i++; } else { break; } } current->lines=i; } return current; } subtitle *sub_read_line_subviewer2(FILE *fd,subtitle *current) { char line[LINE_LEN+1]; int a1,a2,a3,a4; char *p=NULL; int i,len; while (!current->text[0]) { if (!fgets (line, LINE_LEN, fd)) return NULL; if (line[0]!='{') continue; if ((len=sscanf (line, "{T %d:%d:%d:%d",&a1,&a2,&a3,&a4)) < 4) continue; current->start = a1*360000+a2*6000+a3*100+a4/10; for (i=0; itext[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]; int a1,a2,a3; char *p=NULL, *next,separator; int i,len,plen; while (!current->text[0]) { if (!fgets (line, LINE_LEN, fd)) return NULL; if ((len=sscanf (line, "%d:%d:%d%c%n",&a1,&a2,&a3,&separator,&plen)) < 4) continue; if (!(current->start = a1*360000+a2*6000+a3*100)) continue; /* removed by wodzu p=line; // finds the body of the subtitle for (i=0; i<3; i++){ p=strchr(p,':'); if (p==NULL) break; ++p; } if (p==NULL) { printf("SUB: Skipping incorrect subtitle line!\n"); continue; } */ // by wodzu: hey! this time we know what length it has! what is // that magic for? it can't deal with space instead of third // colon! look, what simple it can be: p = &line[ plen ]; 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) { mp_msg(MSGT_SUBREADER,MSGL_WARN,"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; 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, "