subtitles: do not use scandir as sorting is not required

src/input/subtitles.c

@@ -302,23 +302,26 @@ char **subtitles_Detect( input_thread_t *p_this, char *psz_path,
     subdirs = paths_to_list( f_dir, psz_path );
     for( j = -1, i_sub_count = 0; (j == -1) || ( j >= 0 && subdirs != NULL && subdirs[j] != NULL ); j++ )
     {
-        const char *psz_dir = j < 0 ? f_dir : subdirs[j];
-        char **ppsz_dir_content;
-        int i_dir_content;
-
+        const char *psz_dir = (j < 0) ? f_dir : subdirs[j];
         if( psz_dir == NULL || ( j >= 0 && !strcmp( psz_dir, f_dir ) ) )
             continue;
 
         /* parse psz_src dir */
-        i_dir_content = vlc_scandir( psz_dir, &ppsz_dir_content,
-                                      subtitles_Filter, NULL );
-        if( i_dir_content < 0 )
+        DIR *dir = vlc_opendir( psz_dir );
+        if( dir == NULL )
             continue;
 
         msg_Dbg( p_this, "looking for a subtitle file in %s", psz_dir );
-        for( int a = 0; a < i_dir_content && i_sub_count < MAX_SUBTITLE_FILES ; a++ )
+
+        char *psz_name;
+        while( (psz_name = vlc_readdir( dir )) && i_sub_count < MAX_SUBTITLE_FILES )
         {
-            char *psz_name = ppsz_dir_content[a];
+            if( psz_name[0] == '.' || !subtitles_Filter( psz_name ) )
+            {
+                free( psz_name );
+                continue;
+            }
+
             char tmp_fname_noext[strlen( psz_name ) + 1];
             char tmp_fname_trim[strlen( psz_name ) + 1];
             char tmp_fname_ext[strlen( psz_name ) + 1];
@@ -326,9 +329,6 @@ char **subtitles_Detect( input_thread_t *p_this, char *psz_path,
 
             int i_prio;
 
-            if( psz_name == NULL || psz_name[0] == '.' )
-                continue;
-
             /* retrieve various parts of the filename */
             strcpy_strip_ext( tmp_fname_noext, psz_name );
             strcpy_get_ext( tmp_fname_ext, psz_name );
@@ -370,7 +370,10 @@ char **subtitles_Detect( input_thread_t *p_this, char *psz_path,
 
                 sprintf( psz_path, "%s"DIR_SEP"%s", psz_dir, psz_name );
                 if( !strcmp( psz_path, psz_fname ) )
+                {
+                    free( psz_name );
                     continue;
+                }
 
                 if( !vlc_stat( psz_path, &st ) && S_ISREG( st.st_mode ) && result )
                 {
@@ -388,13 +391,9 @@ char **subtitles_Detect( input_thread_t *p_this, char *psz_path,
                              psz_path, i_prio );
                 }
             }
+            free( psz_name );
         }
-        if( ppsz_dir_content )
-        {
-            for( int a = 0; a < i_dir_content; a++ )
-                free( ppsz_dir_content[a] );
-            free( ppsz_dir_content );
-        }
+        closedir( dir );
     }
     if( subdirs )
     {