handle the utf8 byte order mark when present at the beginning of srt subs

it was tripping us up and causing the loss of the first subtitle


git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@3344 b64f7644-9d1e-0410-96f1-a4d463321fa5

1 files changed, 11 insertions, 2 deletions

diff --git a/libhb/decsrtsub.c b/libhb/decsrtsub.c
index 7f1602b74..daf210d6f 100644
--- a/libhb/decsrtsub.c
+++ b/libhb/decsrtsub.c
@@ -42,6 +42,7 @@ struct hb_work_private_s
     char       utf8_buf[2048];
     int        utf8_pos;
     int        utf8_end;
+    int        utf8_bom_skipped;
     unsigned long current_time;
     unsigned long number_of_entries;
     unsigned long last_entry_number;
@@ -117,6 +118,16 @@ static int utf8_fill( hb_work_private_t * pv )
         pv->utf8_end = q - pv->utf8_buf;
         pv->pos = p - pv->buf;
 
+        if ( !pv->utf8_bom_skipped )
+        {
+            uint8_t *buf = (uint8_t*)pv->utf8_buf;
+            if (buf[0] == 0xef && buf[1] == 0xbb && buf[2] == 0xbf)
+            {
+                pv->utf8_pos = 3;
+            }
+            pv->utf8_bom_skipped = 1;
+        }
+
         if( ( retval == -1 ) && ( errno == EINVAL ) )
         {
             /* Incomplete multibyte sequence, read more data */
@@ -461,8 +472,6 @@ static int decsrtInit( hb_work_object_t * w, hb_job_t * job )
         buffer = hb_buffer_init( 0 );
         hb_fifo_push( w->fifo_in, buffer);
         
-        pv->file = fopen( w->subtitle->config.src_filename, "r" );
-        
         pv->current_state = k_state_potential_new_entry;
         pv->number_of_entries = 0;
         pv->last_entry_number = 0;