diff --git a/gst/asfdemux/asfpacket.h b/gst/asfdemux/asfpacket.h
--- /dev/null
+++ b/gst/asfdemux/asfpacket.h
@@ -0,0 +1,60 @@
+/* GStreamer ASF/WMV/WMA demuxer
+ * Copyright (C) 2007 Tim-Philipp Müller <tim centricular net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __ASF_PACKET_H__
+#define __ASF_PACKET_H__
+
+#include <gst/gstbuffer.h>
+#include <gst/gstclock.h>
+
+#include "gstasfdemux.h"
+
+G_BEGIN_DECLS
+
+typedef struct {
+ gboolean keyframe; /* buffer flags might not survive merge.. */
+ guint mo_number; /* media object number (unused) */
+ guint mo_offset; /* offset (timestamp for compressed data) */
+ guint mo_size; /* size of media-object-to-be, or 0 */
+ guint rep_data_len; /* should never be more than 256, since */
+ guint8 rep_data[256]; /* the length should be stored in a byte */
+ /* GstClockTime duration; */ /* TODO:get from payload extension system */
+ GstBuffer *buf;
+} AsfPayload;
+
+typedef struct {
+ GstBuffer *buf;
+ guint length; /* packet length (unused) */
+ guint padding; /* length of padding at end of packet */
+ guint sequence; /* sequence (unused) */
+ GstClockTime send_time;
+ GstClockTime duration;
+
+ guint8 prop_flags; /* payload length types */
+} AsfPacket;
+
+gboolean gst_asf_demux_parse_packet (GstASFDemux * demux, GstBuffer * buf);
+
+#define gst_asf_payload_is_complete(payload) \
+ (GST_BUFFER_SIZE ((payload)->buf) >= (payload)->mo_size)
+
+G_END_DECLS
+
+#endif /* __ASF_PACKET_H__ */
+