/*****************************************************************************
* subtitles.c
*****************************************************************************
- * Copyright (C) 2003 VideoLAN
- * $Id: subtitles.c,v 1.1 2003/09/22 03:40:06 hartman Exp $
+ * Copyright (C) 2003-2004 VideoLAN (Centrale Réseaux) and its contributors
+ * $Id$
*
* Authors: Derk-Jan Hartman <hartman at videolan.org>
* This is adapted code from the GPL'ed MPlayer (http://mplayerhq.hu)
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
+/**
+ * \file
+ * This file contains functions to dectect subtitle files.
+ */
+
#include <stdlib.h>
#include <vlc/vlc.h>
#include <vlc/input.h>
-#include "ninput.h"
-#include <dirent.h>
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+#endif
+
#include <ctype.h>
+/**
+ * What's between a directory and a filename?
+ */
#if defined( WIN32 )
#define DIRECTORY_SEPARATOR '\\'
#else
#define DIRECTORY_SEPARATOR '/'
#endif
+/**
+ * We are not going to autodetect more subtitle files than this.
+ */
#define MAX_SUBTITLE_FILES 128
+/**
+ * The possible extentions for subtitle files we support
+ */
+static const char * sub_exts[] = { "utf", "utf8", "utf-8", "sub", "srt", "smi", "txt", "ssa", "idx", NULL};
+/* extensions from unsupported types */
+/* rt, aqt, jss, js, ass */
+
static void strcpy_trim( char *d, char *s )
{
/* skip leading whitespace */
while( *s && !isalnum(*s) )
{
- s++;
+ s++;
}
for(;;)
{
- /* copy word */
- while( *s && isalnum(*s) )
+ /* copy word */
+ while( *s && isalnum(*s) )
{
- *d = tolower(*s);
- s++; d++;
- }
- if (*s == 0) break;
- /* trim excess whitespace */
- while( *s && !isalnum(*s) )
+ *d = tolower(*s);
+ s++; d++;
+ }
+ if (*s == 0) break;
+ /* trim excess whitespace */
+ while( *s && !isalnum(*s) )
{
- s++;
- }
- if( *s == 0 ) break;
- *d++ = ' ';
+ s++;
+ }
+ if( *s == 0 ) break;
+ *d++ = ' ';
}
*d = 0;
}
-
+
static void strcpy_strip_ext( char *d, char *s )
{
char *tmp = strrchr(s, '.');
if( !tmp ) {
- strcpy(d, s);
- return;
+ strcpy(d, s);
+ return;
}
else
{
- strncpy(d, s, tmp - s);
- d[tmp - s] = 0;
+ strncpy(d, s, tmp - s);
+ d[tmp - s] = 0;
}
while( *d )
{
- *d = tolower(*d);
- d++;
+ *d = tolower(*d);
+ d++;
}
}
-
+
static void strcpy_get_ext( char *d, char *s )
{
char *tmp = strrchr(s, '.');
if( !tmp )
{
- strcpy(d, "");
- return;
+ strcpy(d, "");
+ return;
} else strcpy( d, tmp + 1 );
}
{
while ( *s )
{
- if( isalnum( *s ) ) return 0;
- s++;
+ if( isalnum( *s ) ) return 0;
+ s++;
}
return 1;
}
-typedef struct _subfn
+typedef struct _subfn
{
int priority;
char *psz_fname;
+ char *psz_ext;
} subfn;
static int compare_sub_priority( const void *a, const void *b )
{
- if (((subfn*)a)->priority > ((subfn*)b)->priority) {
- return -1;
- } else if (((subfn*)a)->priority < ((subfn*)b)->priority) {
- return 1;
- } else {
- return strcoll(((subfn*)a)->psz_fname, ((subfn*)b)->psz_fname);
+ if (((subfn*)a)->priority > ((subfn*)b)->priority)
+ {
+ return -1;
}
+
+ if (((subfn*)a)->priority < ((subfn*)b)->priority)
+ {
+ return 1;
+ }
+
+#ifndef UNDER_CE
+ return strcoll(((subfn*)a)->psz_fname, ((subfn*)b)->psz_fname);
+#else
+ return strcmp(((subfn*)a)->psz_fname, ((subfn*)b)->psz_fname);
+#endif
}
-/*****************************************************************************
- * subtitles_Detect: Use the original filename to find a subtitle files.
- *****************************************************************************/
-char** subtitles_Detect( input_thread_t *p_input, char *psz_path, char *psz_fname )
+/**
+ * Convert a list of paths separated by ',' to a char**
+ */
+static char **paths_to_list( char *psz_dir, char *psz_path )
+{
+ unsigned int i, k, i_nb_subdirs;
+ char **subdirs; /* list of subdirectories to look in */
+
+ i_nb_subdirs = 1;
+ for( k = 0; k < strlen( psz_path ); k++ )
+ {
+ if( psz_path[k] == ',' )
+ {
+ i_nb_subdirs++;
+ }
+ }
+
+ if( i_nb_subdirs > 0 )
+ {
+ char *psz_parser, *psz_temp;
+
+ subdirs = (char**)malloc( sizeof(char*) * ( i_nb_subdirs + 1 ) );
+ memset( subdirs, 0, sizeof(char*) * ( i_nb_subdirs + 1 ) );
+ i = 0;
+ psz_parser = psz_path;
+ while( psz_parser && *psz_parser )
+ {
+ char *psz_subdir;
+ psz_subdir = psz_parser;
+ psz_parser = strchr( psz_subdir, ',' );
+ if( psz_parser )
+ {
+ *psz_parser = '\0';
+ psz_parser++;
+ while( *psz_parser == ' ' )
+ {
+ psz_parser++;
+ }
+ }
+ if( strlen( psz_subdir ) > 0 )
+ {
+ psz_temp = (char *)malloc( strlen(psz_dir)
+ + strlen(psz_subdir) + 2 );
+ if( psz_temp )
+ {
+ sprintf( psz_temp, "%s%s%c",
+ psz_subdir[0] == '.' ? psz_dir : "",
+ psz_subdir,
+ psz_subdir[strlen(psz_subdir) - 1] ==
+ DIRECTORY_SEPARATOR ? '\0' : DIRECTORY_SEPARATOR );
+ subdirs[i] = psz_temp;
+ i++;
+ }
+ }
+ }
+ subdirs[i] = NULL;
+ }
+ else
+ {
+ subdirs = NULL;
+ }
+ return subdirs;
+}
+
+/**
+ * Detect subtitle files.
+ *
+ * When called this function will split up the psz_fname string into a
+ * directory, filename and extension. It then opens the directory
+ * in which the file resides and tries to find possible matches of
+ * subtitles files.
+ *
+ * \ingroup Demux
+ * \param p_this the calling \ref input_thread_t
+ * \param psz_path a list of subdirectories (separated by a ',') to look in.
+ * \param psz_fname the complete filename to base the search on.
+ * \return a NULL terminated array of filenames with detected possible subtitles.
+ * The array contains max MAX_SUBTITLE_FILES items and you need to free it after use.
+ */
+char **subtitles_Detect( input_thread_t *p_this, char *psz_path,
+ char *psz_fname )
{
/* variables to be used for derivatives of psz_fname */
char *f_dir, *f_fname, *f_fname_noext, *f_fname_trim, *tmp;
/* variables to be used for derivatives FILE *f */
char *tmp_fname_noext, *tmp_fname_trim, *tmp_fname_ext, *tmpresult;
-
- int len, i, j, i_sub_count, i_sub_match_fuzziness;
+ vlc_value_t fuzzy;
+ int len, i, j, i_sub_count, i_result2;
subfn *result; /* unsorted results */
char **result2; /* sorted results */
-
+ char **tmp_subdirs, **subdirs; /* list of subdirectories to look in */
+
FILE *f;
DIR *d;
struct dirent *de;
- char * sub_exts[] = { "utf", "utf8", "utf-8", "sub", "srt", "smi", "txt", "ssa", NULL};
- /* extensions from unsupported types */
- /* rt, aqt, jss, js, ass */
+ if( !strncmp( psz_fname, "file://", 7 ) )
+ {
+ psz_fname += 7;
+ }
i_sub_count = 0;
- len = ( strlen( psz_fname ) > 256 ? strlen( psz_fname ) : 256 ) +
- ( strlen( psz_path ) > 256 ? strlen( psz_path ) : 256 ) + 2;
+ len = strlen( psz_fname ) > 256 ? strlen( psz_fname ) : 256;
f_dir = (char*)malloc(len);
f_fname = (char*)malloc(len);
if( tmp )
{
int pos;
- strcpy( f_fname, tmp + 1 );
- pos = tmp - psz_fname;
- strncpy( f_dir, psz_fname, pos + 1 );
- f_dir[pos + 1] = 0;
+ strncpy( f_fname, tmp + 1, len - 1 );
+ f_fname[len - 1] = 0;
+ pos = tmp - psz_fname + 1;
+ strncpy( f_dir, psz_fname, __MIN(pos,len-1) );
+ f_dir[__MIN(pos,len-1)] = 0;
}
else
{
- strcpy( f_fname, psz_fname );
- strcpy( f_dir, "" );
+ strncpy( f_fname, psz_fname, len - 1 );
+ f_fname[len - 1] = 0;
+ strcpy( f_dir, "" );
}
strcpy_strip_ext( f_fname_noext, f_fname );
strcpy_trim( f_fname_trim, f_fname_noext );
+ var_Get( p_this, "sub-autodetect-fuzzy", &fuzzy );
- i_sub_match_fuzziness = 3;
- /* 0 = nothing
- * 1 = any subtitle file
- * 2 = any sub file containing movie name
- * 3 = sub file matching movie name exactly
- * 4 = sub file matching movie name with additional chars
- */
- for( j = 0; j <= 1; j++)
+ tmp_subdirs = paths_to_list( f_dir, psz_path );
+ subdirs = tmp_subdirs;
+
+ for( j = -1; j == -1 || ( j >= 0 && subdirs != NULL && *subdirs != NULL );
+ j++)
{
- d = opendir( j == 0 ? f_dir : psz_path );
- if( d )
+ d = opendir( j < 0 ? f_dir : *subdirs );
+ if( d )
{
int b_found;
- while( de = readdir( d ) )
+ msg_Dbg( p_this, "looking for a subtitle file in %s",
+ j < 0 ? f_dir : *subdirs );
+ while( ( de = readdir( d ) ) )
{
- /* retrieve various parts of the filename */
- strcpy_strip_ext( tmp_fname_noext, de->d_name );
- strcpy_get_ext( tmp_fname_ext, de->d_name );
- strcpy_trim( tmp_fname_trim, tmp_fname_noext );
-
- /* does it end with a subtitle extension? */
- b_found = 0;
- for( i = 0; sub_exts[i]; i++ )
+ /* retrieve various parts of the filename */
+ strcpy_strip_ext( tmp_fname_noext, de->d_name );
+ strcpy_get_ext( tmp_fname_ext, de->d_name );
+ strcpy_trim( tmp_fname_trim, tmp_fname_noext );
+
+ /* does it end with a subtitle extension? */
+ b_found = 0;
+ for( i = 0; sub_exts[i]; i++ )
{
- if( strcmp(sub_exts[i], tmp_fname_ext ) == 0 )
+ if( strcmp( sub_exts[i], tmp_fname_ext ) == 0 )
{
- b_found = 1;
- msg_Dbg( p_input, "found subtitle: %s", de->d_name );
- break;
- }
- }
-
- /* we have a (likely) subtitle file */
- if( b_found )
+ b_found = 1;
+ msg_Dbg( p_this, "found a possible subtitle: %s",
+ de->d_name );
+ break;
+ }
+ }
+
+ /* we have a (likely) subtitle file */
+ if( b_found )
{
- int i_prio = 0;
- if( !i_prio && strcmp( tmp_fname_trim, f_fname_trim ) == 0 )
+ int i_prio = 0;
+ if( !i_prio && !strcmp( tmp_fname_trim, f_fname_trim ) )
{
- /* matches the movie name exactly */
- i_prio = 4;
- }
- if( !i_prio && ( tmp = strstr( tmp_fname_trim, f_fname_trim ) ) )
+ /* matches the movie name exactly */
+ i_prio = 4;
+ }
+ if( !i_prio &&
+ ( tmp = strstr( tmp_fname_trim, f_fname_trim ) ) )
{
- /* contains the movie name */
+ /* contains the movie name */
tmp += strlen( f_fname_trim );
if( whiteonly( tmp ) )
{
}
else
{
- /* chars after (and possibly in front of) the movie name */
+ /* chars after (and possibly in front of)
+ * the movie name */
i_prio = 3;
}
- }
- if( !i_prio )
+ }
+ if( !i_prio )
{
- /* doesn't contain the movie name */
- if( j == 0 ) i_prio = 1;
- }
+ /* doesn't contain the movie name */
+ if( j == 0 ) i_prio = 1;
+ }
- if( i_prio >= i_sub_match_fuzziness )
+ if( i_prio >= fuzzy.i_int )
{
- sprintf( tmpresult, "%s%s", j == 0 ? f_dir : psz_path, de->d_name );
- msg_Dbg( p_input, "autodetected subtitle: %s with priority %d", de->d_name, i_prio );
- if( f = fopen( tmpresult, "rt" ) )
+ sprintf( tmpresult, "%s%s", j == -1 ? f_dir : *subdirs,
+ de->d_name );
+ msg_Dbg( p_this, "autodetected subtitle: %s with "
+ "priority %d", de->d_name, i_prio );
+ if( ( f = fopen( tmpresult, "rt" ) ) )
{
- fclose( f );
- result[i_sub_count].priority = i_prio;
- result[i_sub_count].psz_fname = strdup( tmpresult );
- i_sub_count++;
- }
- }
-
- }
- if( i_sub_count >= MAX_SUBTITLE_FILES ) break;
- }
- closedir( d );
- }
+ fclose( f );
+ result[i_sub_count].priority = i_prio;
+ result[i_sub_count].psz_fname = strdup(tmpresult);
+ result[i_sub_count].psz_ext = strdup(tmp_fname_ext);
+ i_sub_count++;
+ }
+ }
+ }
+ if( i_sub_count >= MAX_SUBTITLE_FILES ) break;
+ }
+ closedir( d );
+ }
+ if( j >= 0 ) free( *subdirs++ );
}
-
+
+ if( tmp_subdirs ) free( tmp_subdirs );
+
free( f_dir );
free( f_fname );
free( f_fname_noext );
result2 = (char**)malloc( sizeof(char*) * ( i_sub_count + 1 ) );
memset( result2, 0, sizeof(char*) * ( i_sub_count + 1 ) );
+ i_result2 = 0;
for( i = 0; i < i_sub_count; i++ )
{
- result2[i] = result[i].psz_fname;
+ if( result[i].psz_ext && !strcasecmp( result[i].psz_ext, "sub" ) )
+ {
+ int j;
+ for( j = 0; j < i_sub_count; j++ )
+ {
+ if( result[j].psz_fname && result[i].psz_fname &&
+ !strncasecmp( result[i].psz_fname, result[j].psz_fname, sizeof( result[i].psz_fname) - 4 ) &&
+ !strcasecmp( result[j].psz_ext, "idx" ) )
+ break;
+
+ }
+ if( j >= i_sub_count )
+ {
+ result2[i_result2] = result[i].psz_fname;
+ i_result2++;
+ }
+ }
+ else
+ {
+ result2[i_result2] = result[i].psz_fname;
+ i_result2++;
+ }
}
- result2[i_sub_count] = NULL;
free( result );
return result2;
}
-
projects / vlc / blobdiff