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xine_demux_sputext.cpp
1227 lines (1089 loc) · 37.6 KB
/
xine_demux_sputext.cpp
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/*
* Copyright (C) 2000-2003 the xine project
*
* This file is part of xine, a free video player.
*
* xine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* xine is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*
* code based on old libsputext/xine_decoder.c
*
* code based on mplayer module:
*
* Subtitle reader with format autodetection
*
* Written by laaz
* Some code cleanup & realloc() by A'rpi/ESP-team
* dunnowhat sub format by szabi
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <cctype>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include "captions/xine_demux_sputext.h"
#define LOG_MODULE "demux_sputext"
#define LOG_VERBOSE
/*
#define LOG
*/
#define ERR ((void *)-1)
#define LINE_LEN 1000
#define LINE_LEN_QUOT "1000"
/*
* Demuxer code start
*/
#define FORMAT_UNKNOWN (-1)
#define FORMAT_MICRODVD 0
#define FORMAT_SUBRIP 1
#define FORMAT_SUBVIEWER 2
#define FORMAT_SAMI 3
#define FORMAT_VPLAYER 4
#define FORMAT_RT 5
#define FORMAT_SSA 6 /* Sub Station Alpha */
#define FORMAT_PJS 7
#define FORMAT_MPSUB 8
#define FORMAT_AQTITLE 9
#define FORMAT_JACOBSUB 10
#define FORMAT_SUBVIEWER2 11
#define FORMAT_SUBRIP09 12
#define FORMAT_MPL2 13 /*Mplayer sub 2 ?*/
static bool eol(char p) {
return (p=='\r' || p=='\n' || p=='\0');
}
static inline void trail_space(char *s) {
while (isspace(*s)) {
char *copy = s;
do {
// The clang-tidy warning is wrong. All callers have a null
// terminated string. If the null is the first character in the
// string, this loop is never called. If not, there's
// guaranteed to at least be a second character, even if that
// second character is the null.
// NOLINTNEXTLINE(clang-analyzer-core.uninitialized.Assign)
copy[0] = copy[1];
copy++;
} while(*copy != 0);
}
int i = strlen(s) - 1;
while (i > 0 && isspace(s[i]))
s[i--] = '\0';
}
/*
* Reimplementation of fgets() using the input->read() method.
*/
static char *read_line_from_input(demux_sputext_t *demuxstr, char *line, off_t len) {
off_t nread = 0;
if ((len - demuxstr->buflen) > 512) {
nread = len - demuxstr->buflen;
nread = std::min(nread, demuxstr->rbuffer_len - demuxstr->rbuffer_cur);
if (nread < 0) {
printf("read failed.\n");
return nullptr;
}
memcpy(&demuxstr->buf[demuxstr->buflen],
&demuxstr->rbuffer_text[demuxstr->rbuffer_cur],
nread);
demuxstr->rbuffer_cur += nread;
demuxstr->buflen += nread;
demuxstr->buf[demuxstr->buflen] = '\0';
}
char *s = strchr(demuxstr->buf, '\n');
if (line && (s || demuxstr->buflen)) {
int linelen = s ? (s - demuxstr->buf) + 1 : demuxstr->buflen;
memcpy(line, demuxstr->buf, linelen);
line[linelen] = '\0';
memmove(demuxstr->buf, &demuxstr->buf[linelen], SUB_BUFSIZE - linelen);
demuxstr->buflen -= linelen;
return line;
}
return nullptr;
}
static subtitle_t *sub_read_line_sami(demux_sputext_t *demuxstr, subtitle_t *current) {
static char s_line[LINE_LEN + 1];
static char *s_s = nullptr;
char text[LINE_LEN + 1];
char *p = nullptr;
current->lines = current->start = 0;
current->end = -1;
int state = 0;
/* read the first line */
if (!s_s)
if (!(s_s = read_line_from_input(demuxstr, s_line, LINE_LEN))) return nullptr;
do {
switch (state) {
case 0: /* find "START=" */
s_s = strcasestr (s_s, "Start=");
if (s_s) {
current->start = strtol (s_s + 6, &s_s, 0) / 10;
state = 1; continue;
}
break;
case 1: /* find "<P" */
if ((s_s = strcasestr (s_s, "<P"))) { s_s += 2; state = 2; continue; }
break;
case 2: /* find ">" */
if ((s_s = strchr (s_s, '>'))) { s_s++; state = 3; p = text; continue; }
break;
case 3: /* get all text until '<' appears */
if (*s_s == '\0') { break; }
else if (strncasecmp (s_s, " ", 6) == 0) { *p++ = ' '; s_s += 6; }
else if (*s_s == '\r') { s_s++; }
else if (strncasecmp (s_s, "<br>", 4) == 0 || *s_s == '\n') {
*p = '\0'; p = text; trail_space (text);
if (text[0] != '\0')
current->text[current->lines++] = strdup (text);
if (*s_s == '\n') s_s++; else s_s += 4;
}
else if (*s_s == '<') { state = 4; }
else *p++ = *s_s++;
continue;
case 4: /* get current->end or skip <TAG> */
char *q = strcasestr (s_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_s = strchr (s_s, '>');
if (s_s) { s_s++; state = 3; continue; }
break;
}
/* read next line */
if (state != 99 && !(s_s = read_line_from_input (demuxstr, s_line, LINE_LEN)))
return nullptr;
} while (state != 99);
return current;
}
/**
* \brief Extract the next token from a string.
*
* \param source The character string to scan.
* \param dest A newly allocated string containing the text from the
* source string up to the next newline, carriage return,
* or vertical bar.
*
* \returns one of 1) a pointer to a newly allocated string, 2)
* nullptr ig the end of te string was reached, or "(char*)-1" on
* error.
*/
static char *sub_readtext(char *source, char **dest) {
int len=0;
char *p=source;
while ( !eol(*p) && *p!= '|' ) {
p++,len++;
}
if (!dest)
return (char*)ERR;
*dest= (char *)malloc (len+1);
if (!(*dest))
return (char*)ERR;
strncpy(*dest, source, len);
(*dest)[len]=0;
while (*p=='\r' || *p=='\n' || *p=='|')
p++;
if (*p) return p; /* not-last text field */
return (char*)nullptr; /* last text field */
}
static subtitle_t *sub_read_line_microdvd(demux_sputext_t *demuxstr, subtitle_t *current) {
char line[LINE_LEN + 1];
char line2[LINE_LEN + 1];
memset (current, 0, sizeof(subtitle_t));
current->end=-1;
do {
if (!read_line_from_input (demuxstr, line, LINE_LEN)) return nullptr;
} while ((sscanf (line, "{%ld}{}%" LINE_LEN_QUOT "[^\r\n]", &(current->start), line2) !=2) &&
(sscanf (line, "{%ld}{%ld}%" LINE_LEN_QUOT "[^\r\n]", &(current->start), &(current->end),line2) !=3)
);
char *p=line2;
char *next=p;
int i=0;
while ((next =sub_readtext (next, &(current->text[i])))) {
if (next==ERR) return (subtitle_t *)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;
}
static subtitle_t *sub_read_line_subviewer(demux_sputext_t *demuxstr, subtitle_t *current) {
char line[LINE_LEN + 1];
int a1=0,a2=0,a3=0,a4=0,b1=0,b2=0,b3=0,b4=0; // NOLINT(readability-isolate-declaration)
memset (current, 0, sizeof(subtitle_t));
while (true) {
if (!read_line_from_input(demuxstr, line, LINE_LEN)) return nullptr;
if (sscanf (line, "%d:%d:%d.%d,%d:%d:%d.%d",&a1,&a2,&a3,&a4,&b1,&b2,&b3,&b4) < 8) {
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 (!read_line_from_input(demuxstr, line, LINE_LEN))
return nullptr;
char *p=line;
for (current->lines=1; current->lines <= SUB_MAX_TEXT; current->lines++) {
char *q=nullptr;
int len = 0;
for (q=p,len=0; *p && *p!='\r' && *p!='\n' && *p!='|' &&
(strncasecmp(p,"[br]",4) != 0); p++,len++);
current->text[current->lines-1]=(char *)malloc (len+1);
if (!current->text[current->lines-1]) return (subtitle_t *)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=='[') while (*p++!=']');
if (*p=='|') p++;
}
if (current->lines > SUB_MAX_TEXT) current->lines = SUB_MAX_TEXT;
break;
}
return current;
}
static subtitle_t *sub_read_line_subrip(demux_sputext_t *demuxstr,subtitle_t *current) {
char line[LINE_LEN + 1];
int a1=0,a2=0,a3=0,a4=0,b1=0,b2=0,b3=0,b4=0; // NOLINT(readability-isolate-declaration)
int i = 0;
memset(current,0,sizeof(subtitle_t));
do {
if(!read_line_from_input(demuxstr,line,LINE_LEN))
return nullptr;
i = sscanf(line,"%d:%d:%d%*[,.]%d --> %d:%d:%d%*[,.]%d",&a1,&a2,&a3,&a4,&b1,&b2,&b3,&b4);
} while(i < 8);
current->start = a1*360000+a2*6000+a3*100+a4/10;
current->end = b1*360000+b2*6000+b3*100+b4/10;
i=0;
int end_sub=0;
do {
char *p = nullptr; /* pointer to the curently read char */
char temp_line[SUB_BUFSIZE]; /* subtitle line that will be transfered to current->text[i] */
int temp_index = 0; /* ... and its index wich 'points' to the first EMPTY place -> last read char is at temp_index-1 if temp_index>0 */
temp_line[SUB_BUFSIZE-1]='\0'; /* just in case... */
if(!read_line_from_input(demuxstr,line,LINE_LEN)) {
if(i)
break; /* if something was read, transmit it */
return nullptr; /* if not, repport EOF */
}
for(temp_index=0,p=line;*p!='\0' && !end_sub && temp_index<SUB_BUFSIZE && i<SUB_MAX_TEXT;p++) {
switch(*p) {
case '\\':
if(*(p+1)=='N' || *(p+1)=='n') {
temp_line[temp_index++]='\0'; /* end of curent line */
p++;
} else
temp_line[temp_index++]=*p;
break;
case '{':
#if 0 /* italic not implemented in renderer, ignore them for now */
if(!strncmp(p,"{\\i1}",5) && temp_index+3<SUB_BUFSIZE) {
temp_line[temp_index++]='<';
temp_line[temp_index++]='i';
temp_line[temp_index++]='>';
#else
if(strncmp(p,"{\\i1}",5) == 0) { // NOLINT(bugprone-branch-clone)
#endif
p+=4;
}
#if 0 /* italic not implemented in renderer, ignore them for now */
else if(!strncmp(p,"{\\i0}",5) && temp_index+4<SUB_BUFSIZE) {
temp_line[temp_index++]='<';
temp_line[temp_index++]='/';
temp_line[temp_index++]='i';
temp_line[temp_index++]='>';
#else
else if(strncmp(p,"{\\i0}",5) == 0) {
#endif
p+=4;
}
else
temp_line[temp_index++]=*p;
break;
case '\r': /* just ignore '\r's */
break;
case '\n':
temp_line[temp_index++]='\0';
break;
default:
temp_line[temp_index++]=*p;
break;
}
if(temp_index>0) {
if(temp_index==SUB_BUFSIZE)
printf("Too many characters in a subtitle line\n");
if(temp_line[temp_index-1]=='\0' || temp_index==SUB_BUFSIZE) {
if(temp_index>1) { /* more than 1 char (including '\0') -> that is a valid one */
current->text[i]=(char *)malloc(temp_index);
if(!current->text[i])
return (subtitle_t *)ERR;
strncpy(current->text[i],temp_line,temp_index); /* temp_index<=SUB_BUFSIZE is always true here */
i++;
temp_index=0;
} else
end_sub=1;
}
}
}
} while(i<SUB_MAX_TEXT && (end_sub == 0));
if(i>=SUB_MAX_TEXT)
printf("Too many lines in a subtitle\n");
current->lines=i;
return current;
}
static subtitle_t *sub_read_line_vplayer(demux_sputext_t *demuxstr,subtitle_t *current) {
char line[LINE_LEN + 1];
int a1=0,a2=0,a3=0,b1=0,b2=0,b3=0; // NOLINT(readability-isolate-declaration)
memset (current, 0, sizeof(subtitle_t));
while (!current->text[0]) {
if( demuxstr->next_line[0] == '\0' ) { /* if the buffer is empty.... */
if( !read_line_from_input(demuxstr, line, LINE_LEN) ) return nullptr;
} else {
/* ... get the current line from buffer. */
strncpy( line, demuxstr->next_line, LINE_LEN);
line[LINE_LEN] = '\0'; /* I'm scared. This makes me feel better. */
demuxstr->next_line[0] = '\0'; /* mark the buffer as empty. */
}
/* Initialize buffer with next line */
if( ! read_line_from_input( demuxstr, demuxstr->next_line, LINE_LEN) ) {
demuxstr->next_line[0] = '\0';
return nullptr;
}
if( (sscanf( line, "%d:%d:%d:", &a1, &a2, &a3) < 3) ||
(sscanf( demuxstr->next_line, "%d:%d:%d:", &b1, &b2, &b3) < 3) )
continue;
current->start = a1*360000+a2*6000+a3*100;
current->end = b1*360000+b2*6000+b3*100;
if ((current->end - current->start) > LINE_LEN)
current->end = current->start + LINE_LEN; /* not too long though. */
/* teraz czas na wkopiowanie stringu */
char *p=line;
/* finds the body of the subtitle_t */
for (int i=0; i<3; i++){
char *p2=strchr( p, ':');
if( p2 == nullptr ) break;
p=p2+1;
}
char *next=p;
int i=0;
while( (next = sub_readtext( next, &(current->text[i]))) ) {
if (next==ERR)
return (subtitle_t *)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;
}
static subtitle_t *sub_read_line_rt(demux_sputext_t *demuxstr,subtitle_t *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=0,a2=0,a3=0,a4=0,b1=0,b2=0,b3=0,b4=0; // NOLINT(readability-isolate-declaration)
int plen = 0;
memset (current, 0, sizeof(subtitle_t));
while (!current->text[0]) {
if (!read_line_from_input(demuxstr, line, LINE_LEN)) return nullptr;
/*
* 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 (sscanf (line, R"(<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 (
(sscanf (line, R"(<%*[tT]ime %*[bB]egin="%d:%d" %*[Ee]nd="%d:%d"%*[^<]<clear/>%n)",&a2,&a3,&b2,&b3,&plen) < 4) &&
(sscanf (line, R"(<%*[tT]ime %*[bB]egin="%d:%d" %*[Ee]nd="%d:%d.%d"%*[^<]<clear/>%n)",&a2,&a3,&b2,&b3,&b4,&plen) < 5) &&
/* (sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d.%d\" %*[Ee]nd=\"%d:%d\"%*[^<]<clear/>%n",&a2,&a3,&a4,&b2,&b3,&plen) < 5) && */
(sscanf (line, R"(<%*[tT]ime %*[bB]egin="%d:%d.%d" %*[Ee]nd="%d:%d.%d"%*[^<]<clear/>%n)",&a2,&a3,&a4,&b2,&b3,&b4,&plen) < 6) &&
(sscanf (line, R"(<%*[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;
/* TODO: I don't know what kind of convention is here for marking multiline subs, maybe <br/> like in xml? */
char *next = strstr(line,"<clear/>")+8;
int i=0;
while ((next =sub_readtext (next, &(current->text[i])))) {
if (next==ERR)
return (subtitle_t *)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;
}
static subtitle_t *sub_read_line_ssa(demux_sputext_t *demuxstr,subtitle_t *current) {
int comma = 0;
static int s_maxComma = 32; /* let's use 32 for the case that the */
/* amount of commas increase with newer SSA versions */
int hour1 = 0;
int min1 = 0;
int sec1 = 0;
int hunsec1 = 0;
int hour2 = 0;
int min2 = 0;
int sec2 = 0;
int hunsec2 = 0;
int nothing = 0;
char line[LINE_LEN + 1];
char line3[LINE_LEN + 1];
char *tmp = nullptr;
do {
if (!read_line_from_input(demuxstr, line, LINE_LEN)) return nullptr;
} while (sscanf (line, "Dialogue: Marked=%d,%d:%d:%d.%d,%d:%d:%d.%d,"
"%" LINE_LEN_QUOT "[^\n\r]", ¬hing,
&hour1, &min1, &sec1, &hunsec1,
&hour2, &min2, &sec2, &hunsec2,
line3) < 9
&&
sscanf (line, "Dialogue: %d,%d:%d:%d.%d,%d:%d:%d.%d,"
"%" LINE_LEN_QUOT "[^\n\r]", ¬hing,
&hour1, &min1, &sec1, &hunsec1,
&hour2, &min2, &sec2, &hunsec2,
line3) < 9 );
char *line2=strchr(line3, ',');
if (!line2)
return nullptr;
for (comma = 4; comma < s_maxComma; comma ++)
{
tmp = line2;
if(!(tmp=strchr(++tmp, ','))) break;
if(*(++tmp) == ' ') break;
/* a space after a comma means we're already in a sentence */
line2 = tmp;
}
if(comma < s_maxComma)s_maxComma = comma;
/* eliminate the trailing comma */
if(*line2 == ',') line2++;
current->lines=0;
int 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")) != nullptr) || ((tmp=strstr(line2, "\\N")) != nullptr) ){
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]=strdup(line2);
current->lines++;
return current;
}
/* Sylvain "Skarsnik" Colinet <scolinet@gmail.com>
* From MPlayer subreader.c :
*
* PJS subtitles reader.
* That's the "Phoenix Japanimation Society" format.
* I found some of them in http://www.scriptsclub.org/ (used for anime).
* The time is in tenths of second.
*
* by set, based on code by szabi (dunnowhat sub format ;-)
*/
static subtitle_t *sub_read_line_pjs (demux_sputext_t *demuxstr, subtitle_t *current) {
char line[LINE_LEN + 1];
char text[LINE_LEN + 1];
char *s = nullptr;
char *d = nullptr;
memset (current, 0, sizeof(subtitle_t));
if (!read_line_from_input(demuxstr, line, LINE_LEN))
return nullptr;
for (s = line; *s && isspace(*s); s++);
if (*s == 0)
return nullptr;
if (sscanf (line, "%ld,%ld,", &(current->start),
&(current->end)) <2)
return (subtitle_t *)ERR;
/* the files I have are in tenths of second */
current->start *= 10;
current->end *= 10;
/* walk to the beggining of the string */
for (; *s; s++) if (*s==',') break;
if (*s) {
for (s++; *s; s++) if (*s==',') break;
if (*s) s++;
}
if (*s!='"') {
return (subtitle_t *)ERR;
}
/* copy the string to the text buffer */
for (s++, d=text; *s && *s!='"'; s++, d++)
*d=*s;
*d=0;
current->text[0] = strdup(text);
current->lines = 1;
return current;
}
static subtitle_t *sub_read_line_mpsub (demux_sputext_t *demuxstr, subtitle_t *current) {
char line[LINE_LEN + 1];
float a = NAN;
float b = NAN;
int num=0;
do {
if (!read_line_from_input(demuxstr, line, LINE_LEN))
return nullptr;
} while (sscanf (line, "%f %f", &a, &b) !=2);
demuxstr->mpsub_position += (a*100.0F);
current->start = (int) demuxstr->mpsub_position;
demuxstr->mpsub_position += (b*100.0F);
current->end = (int) demuxstr->mpsub_position;
while (num < SUB_MAX_TEXT) {
if (!read_line_from_input(demuxstr, line, LINE_LEN))
return nullptr;
char *p=line;
while (isspace(*p))
p++;
if (eol(*p) && num > 0)
return current;
if (eol(*p))
return nullptr;
char *q = nullptr;
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;
return nullptr;
}
}
return nullptr;
}
static subtitle_t *sub_read_line_aqt (demux_sputext_t *demuxstr, subtitle_t *current) {
char line[LINE_LEN + 1];
memset (current, 0, sizeof(subtitle_t));
while (true) {
/* try to locate next subtitle_t */
if (!read_line_from_input(demuxstr, line, LINE_LEN))
return nullptr;
if (!(sscanf (line, "-->> %ld", &(current->start)) <1))
break;
}
if (!read_line_from_input(demuxstr, line, LINE_LEN))
return nullptr;
sub_readtext((char *) &line,¤t->text[0]);
current->lines = 1;
current->end = -1;
if (!read_line_from_input(demuxstr, line, LINE_LEN))
return current;;
sub_readtext((char *) &line,¤t->text[1]);
current->lines = 2;
if ((current->text[0][0]==0) && (current->text[1][0]==0)) {
return nullptr;
}
return current;
}
static subtitle_t *sub_read_line_jacobsub(demux_sputext_t *demuxstr, subtitle_t *current) {
char line1[LINE_LEN+1];
char line2[LINE_LEN+1];
char directive[LINE_LEN+1];
char *p = nullptr;
char *q = nullptr;
unsigned a1=0, a2=0, a3=0, a4=0, b1=0, b2=0, b3=0, b4=0; // NOLINT(readability-isolate-declaration)
unsigned comment = 0;
static unsigned s_jacoTimeRes = 30;
static int s_jacoShift = 0;
memset(current, 0, sizeof(subtitle_t));
memset(line1, 0, LINE_LEN+1);
memset(line2, 0, LINE_LEN+1);
memset(directive, 0, LINE_LEN+1);
while (!current->text[0]) {
if (!read_line_from_input(demuxstr, line1, LINE_LEN)) {
return nullptr;
}
if (sscanf
(line1, "%u:%u:%u.%u %u:%u:%u.%u %" LINE_LEN_QUOT "[^\n\r]", &a1, &a2, &a3, &a4,
&b1, &b2, &b3, &b4, line2) < 9) {
if (sscanf(line1, "@%u @%u %" LINE_LEN_QUOT "[^\n\r]", &a4, &b4, line2) < 3) {
if (line1[0] == '#') {
int hours = 0;
int minutes = 0;
int seconds = 0;
int delta = 0;
unsigned units = s_jacoShift;
int inverter = 1;
switch (toupper(line1[1])) {
case 'S':
if (isalpha(line1[2])) {
delta = 6;
} else {
delta = 2;
}
if (sscanf(&line1[delta], "%d", &hours)) {
if (hours < 0) {
hours *= -1;
inverter = -1;
}
if (sscanf(&line1[delta], "%*d:%d", &minutes)) {
if (sscanf
(&line1[delta], "%*d:%*d:%d",
&seconds)) {
sscanf(&line1[delta], "%*d:%*d:%*d.%u",
&units);
} else {
hours = 0;
sscanf(&line1[delta], "%d:%d.%u",
&minutes, &seconds, &units);
minutes *= inverter;
}
} else {
hours = minutes = 0;
sscanf(&line1[delta], "%d.%u", &seconds,
&units);
seconds *= inverter;
}
s_jacoShift =
((hours * 3600 + minutes * 60 +
seconds) * s_jacoTimeRes +
units) * inverter;
}
break;
case 'T':
if (isalpha(line1[2])) {
delta = 8;
} else {
delta = 2;
}
sscanf(&line1[delta], "%u", &s_jacoTimeRes);
break;
}
}
continue;
}
current->start =
(unsigned long) ((a4 + s_jacoShift) * 100.0 /
s_jacoTimeRes);
current->end =
(unsigned long) ((b4 + s_jacoShift) * 100.0 /
s_jacoTimeRes);
} else {
current->start =
(unsigned
long) (((a1 * 3600 + a2 * 60 + a3) * s_jacoTimeRes + a4 +
s_jacoShift) * 100.0 / s_jacoTimeRes);
current->end =
(unsigned
long) (((b1 * 3600 + b2 * 60 + b3) * s_jacoTimeRes + b4 +
s_jacoShift) * 100.0 / s_jacoTimeRes);
}
current->lines = 0;
p = line2;
while ((*p == ' ') || (*p == '\t')) {
++p;
}
if (isalpha(*p)||*p == '[') {
if (sscanf(p, "%" LINE_LEN_QUOT "s %" LINE_LEN_QUOT "[^\n\r]", directive, line1) < 2)
return (subtitle_t *)ERR;
int jLength = strlen(directive);
for (int cont = 0; cont < jLength; ++cont) {
if (isalpha(*(directive + cont)))
*(directive + cont) = toupper(*(directive + cont));
}
if ((strstr(directive, "RDB") != nullptr)
|| (strstr(directive, "RDC") != nullptr)
|| (strstr(directive, "RLB") != nullptr)
|| (strstr(directive, "RLG") != nullptr)) {
continue;
}
/* no alignment */
#if 0
if (strstr(directive, "JL") != nullptr) {
current->alignment = SUB_ALIGNMENT_HLEFT;
} else if (strstr(directive, "JR") != nullptr) {
current->alignment = SUB_ALIGNMENT_HRIGHT;
} else {
current->alignment = SUB_ALIGNMENT_HCENTER;
}
#endif
strcpy(line2, line1);
p = line2;
}
for (q = line1; (!eol(*p)) && (current->lines < SUB_MAX_TEXT); ++p) {
switch (*p) {
case '{':
comment++;
break;
case '}':
if (comment) {
--comment;
/* the next line to get rid of a blank after the comment */
if ((*(p + 1)) == ' ')
p++;
}
break;
case '~':
if (!comment) {
*q = ' ';
++q;
}
break;
case ' ':
case '\t':
if ((*(p + 1) == ' ') || (*(p + 1) == '\t'))
break;
if (!comment) {
*q = ' ';
++q;
}
break;
case '\\':
if (*(p + 1) == 'n') {
*q = '\0';
q = line1;
current->text[current->lines++] = strdup(line1);
++p;
break;
}
if ((toupper(*(p + 1)) == 'C')
|| (toupper(*(p + 1)) == 'F')) {
++p,++p;
break;
}
if ((*(p + 1) == 'B') || (*(p + 1) == 'b') ||
/* actually this means "insert current date here" */
(*(p + 1) == 'D') ||
(*(p + 1) == 'I') || (*(p + 1) == 'i') ||
(*(p + 1) == 'N') ||
/* actually this means "insert current time here" */
(*(p + 1) == 'T') ||
(*(p + 1) == 'U') || (*(p + 1) == 'u')) {
++p;
break;
}
if ((*(p + 1) == '\\') ||
(*(p + 1) == '~') || (*(p + 1) == '{')) {
++p;
} else if (eol(*(p + 1))) {
if (!read_line_from_input(demuxstr, directive, LINE_LEN))
return nullptr;
trail_space(directive);
strncat(line2, directive,
((LINE_LEN > 511) ? LINE_LEN-1 : 511)
- strlen(line2));
break;
}
// Checked xine-lib-1.2.8. No fix there. Seems like it
// should be a break.
break;
default:
if (!comment) {
*q = *p;
++q;
}
}
}
*q = '\0';
if (current->lines < SUB_MAX_TEXT)
current->text[current->lines] = strdup(line1);
else
printf ("Too many lines in a subtitle\n");
}
current->lines++;
return current;
}
static subtitle_t *sub_read_line_subviewer2(demux_sputext_t *demuxstr, subtitle_t *current) {
char line[LINE_LEN+1];
int a1=0,a2=0,a3=0,a4=0; // NOLINT(readability-isolate-declaration)
char *p=nullptr;
int i = 0;
while (!current->text[0]) {
if (!read_line_from_input(demuxstr, line, LINE_LEN)) return nullptr;
if (line[0]!='{')
continue;
if (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; i<SUB_MAX_TEXT;) {
if (!read_line_from_input(demuxstr, line, LINE_LEN)) break;
if (line[0]=='}') break;
int 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 (subtitle_t *)ERR;
strncpy (current->text[i], line, len); current->text[i][len]='\0';
++i;
} else {
break;
}
}
current->lines=i;
}
return current;
}
static subtitle_t *sub_read_line_subrip09 (demux_sputext_t *demuxstr, subtitle_t *current) {
char line[LINE_LEN + 1];
int h = 0;
int m = 0;
int s = 0;
memset (current, 0, sizeof(subtitle_t));
do {
if (!read_line_from_input (demuxstr, line, LINE_LEN)) return nullptr;
} while (sscanf (line, "[%d:%d:%d]", &h, &m, &s) != 3);
if (!read_line_from_input (demuxstr, line, LINE_LEN)) return nullptr;
current->start = 360000 * h + 6000 * m + 100 * s;
current->end = -1;
char *next=line;
int i=0;
while ((next = sub_readtext (next, &(current->text[i])))) {
if (next==ERR) return (subtitle_t *)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;
}
/* Code from subreader.c of MPlayer
** Sylvain "Skarsnik" Colinet <scolinet@gmail.com>
*/
static subtitle_t *sub_read_line_mpl2(demux_sputext_t *demuxstr, subtitle_t *current) {
char line[LINE_LEN+1];
char line2[LINE_LEN+1];
memset (current, 0, sizeof(subtitle_t));
do {
if (!read_line_from_input (demuxstr, line, LINE_LEN)) return nullptr;
} while ((sscanf (line,
"[%ld][%ld]%" LINE_LEN_QUOT "[^\r\n]",
&(current->start), &(current->end), line2) < 3));