* Fixed the ogm subs. Thanx to Mosu who pointed me to the fact that the

  duration for subs is stored in byte1 of the data packet and who
  directed me to the mkvtoolnix code.

modules/demux/ogg.c

@@ -2,7 +2,7 @@
  * ogg.c : ogg stream demux module for vlc
  *****************************************************************************
  * Copyright (C) 2001-2003 VideoLAN
- * $Id: ogg.c,v 1.56 2004/02/07 00:33:08 gbazin Exp $
+ * $Id: ogg.c,v 1.57 2004/02/10 02:57:18 hartman Exp $
  *
  * Author: Gildas Bazin <gbazin@netcourrier.com>
  *
@@ -482,11 +482,35 @@ static void Ogg_DecodePacket( input_thread_t *p_input,
         p_stream->fmt.i_codec != VLC_FOURCC( 't','a','r','k' ) &&
         p_stream->fmt.i_codec != VLC_FOURCC( 't','h','e','o' ) )
     {
-        /* Remove the header from the packet */
+        /* We remove the header from the packet */
         i_header_len = (*p_oggpacket->packet & PACKET_LEN_BITS01) >> 6;
         i_header_len |= (*p_oggpacket->packet & PACKET_LEN_BITS2) << 1;
-        i_header_len++;
+        
+        if( p_stream->fmt.i_codec == VLC_FOURCC( 's','u','b','t' ))
+        {
+            /* But with subtitles we need to retrieve the duration first */
+            int i;
+            long lenbytes = 0;
+        
+            if( ( i_header_len > 0 ) && ( p_oggpacket->bytes >= ( i_header_len + 1 ) ) )
+            {
+                for( i = 0, lenbytes = 0; i < i_header_len; i++ )
+                {
+                    lenbytes = lenbytes << 8;
+                    lenbytes += *((unsigned char *)p_oggpacket->packet + i_header_len - i);
+                }
+            }
+            if (((p_oggpacket->bytes - 1 - i_header_len) > 2) ||
+                ((p_oggpacket->packet[i_header_len + 1] != ' ') &&
+                 (p_oggpacket->packet[i_header_len + 1] != 0) && 
+                 (p_oggpacket->packet[i_header_len + 1] != '\n') &&
+                 (p_oggpacket->packet[i_header_len + 1] != '\r')))
+            {
+                p_block->i_dts = p_block->i_pts + (mtime_t)lenbytes*1000;
+            }
+        }
 
+        i_header_len++;
         p_block->i_buffer -= i_header_len;
     }