resindvd: Remove local basesrc copy

Use the real version of basesrc instead of a local copy now that it
supports the seamless segment feature that resin needs.

5 files changed, 51 insertions, 3191 deletions

diff --git a/ext/resindvd/Makefile.am b/ext/resindvd/Makefile.am
index f752a1dab..7ea8bcf98 100644
--- a/ext/resindvd/Makefile.am
+++ b/ext/resindvd/Makefile.am
@@ -7,7 +7,6 @@ libresindvd_la_SOURCES = \
         resindvdbin.c \
 	rsnaudiomunge.c \
 	rsndec.c \
-	rsnbasesrc.c \
 	rsnstreamselector.c \
         resindvdsrc.c  \
         gstmpegdesc.c   \
@@ -28,7 +27,6 @@ libresindvd_la_LIBTOOLFLAGS = --tag=disable-static
 noinst_HEADERS = resindvdbin.h \
 	rsnaudiomunge.h \
 	rsndec.h \
-	rsnbasesrc.h \
 	rsnstreamselector.h \
         resindvdsrc.h \
         gstmpegdefs.h \
diff --git a/ext/resindvd/resindvdsrc.c b/ext/resindvd/resindvdsrc.c
index e5421ca3c..cd482367a 100644
--- a/ext/resindvd/resindvdsrc.c
+++ b/ext/resindvd/resindvdsrc.c
@@ -98,8 +98,8 @@ static GstFormat chapter_format;
 
 static void rsn_dvdsrc_register_extra (GType rsn_dvdsrc_type);
 
-GST_BOILERPLATE_FULL (resinDvdSrc, rsn_dvdsrc, RsnBaseSrc,
-    RSN_TYPE_BASE_SRC, rsn_dvdsrc_register_extra);
+GST_BOILERPLATE_FULL (resinDvdSrc, rsn_dvdsrc, GstBaseSrc,
+    GST_TYPE_BASE_SRC, rsn_dvdsrc_register_extra);
 
 static gboolean read_vts_info (resinDvdSrc * src);
 
@@ -110,15 +110,15 @@ static void rsn_dvdsrc_get_property (GObject * object, guint prop_id,
 
 static void rsn_dvdsrc_finalize (GObject * object);
 
-static gboolean rsn_dvdsrc_start (RsnBaseSrc * bsrc);
-static gboolean rsn_dvdsrc_stop (RsnBaseSrc * bsrc);
-static gboolean rsn_dvdsrc_unlock (RsnBaseSrc * bsrc);
-static gboolean rsn_dvdsrc_unlock_stop (RsnBaseSrc * bsrc);
+static gboolean rsn_dvdsrc_start (GstBaseSrc * bsrc);
+static gboolean rsn_dvdsrc_stop (GstBaseSrc * bsrc);
+static gboolean rsn_dvdsrc_unlock (GstBaseSrc * bsrc);
+static gboolean rsn_dvdsrc_unlock_stop (GstBaseSrc * bsrc);
 
-static gboolean rsn_dvdsrc_is_seekable (RsnBaseSrc * bsrc);
-static gboolean rsn_dvdsrc_prepare_seek (RsnBaseSrc * bsrc, GstEvent * event,
+static gboolean rsn_dvdsrc_is_seekable (GstBaseSrc * bsrc);
+static gboolean rsn_dvdsrc_prepare_seek (GstBaseSrc * bsrc, GstEvent * event,
     GstSegment * segment);
-static gboolean rsn_dvdsrc_do_seek (RsnBaseSrc * bsrc, GstSegment * segment);
+static gboolean rsn_dvdsrc_do_seek (GstBaseSrc * bsrc, GstSegment * segment);
 static GstStateChangeReturn
 rsn_dvdsrc_change_state (GstElement * element, GstStateChange transition);
 
@@ -140,11 +140,11 @@ static void rsn_dvdsrc_check_nav_blocks (resinDvdSrc * src);
 static void rsn_dvdsrc_schedule_nav_cb (resinDvdSrc * src,
     RsnDvdPendingNav * next_nav);
 
-static gboolean rsn_dvdsrc_check_get_range (RsnBaseSrc * src);
-static GstFlowReturn rsn_dvdsrc_create (RsnBaseSrc * bsrc, guint64 offset,
+static gboolean rsn_dvdsrc_check_get_range (GstBaseSrc * src);
+static GstFlowReturn rsn_dvdsrc_create (GstBaseSrc * bsrc, guint64 offset,
     guint length, GstBuffer ** buf);
-static gboolean rsn_dvdsrc_src_event (RsnBaseSrc * basesrc, GstEvent * event);
-static gboolean rsn_dvdsrc_src_query (RsnBaseSrc * basesrc, GstQuery * query);
+static gboolean rsn_dvdsrc_src_event (GstBaseSrc * basesrc, GstEvent * event);
+static gboolean rsn_dvdsrc_src_query (GstBaseSrc * basesrc, GstQuery * query);
 
 static GstClockTime ifotime_to_gsttime (dvd_time_t * ifo_time);
 static void rsn_dvdsrc_send_commands_changed (resinDvdSrc * src);
@@ -207,11 +207,11 @@ rsn_dvdsrc_class_init (resinDvdSrcClass * klass)
 {
   GObjectClass *gobject_class;
   GstElementClass *gstelement_class;
-  RsnBaseSrcClass *gstbasesrc_class;
+  GstBaseSrcClass *gstbasesrc_class;
 
   gobject_class = (GObjectClass *) klass;
   gstelement_class = (GstElementClass *) klass;
-  gstbasesrc_class = RSN_BASE_SRC_CLASS (klass);
+  gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
 
   gobject_class->finalize = rsn_dvdsrc_finalize;
   gobject_class->set_property = rsn_dvdsrc_set_property;
@@ -261,7 +261,7 @@ rsn_dvdsrc_init (resinDvdSrc * rsndvdsrc, resinDvdSrcClass * gclass)
   rsndvdsrc->branching = FALSE;
   rsndvdsrc->still_cond = g_cond_new ();
 
-  gst_base_src_set_format (RSN_BASE_SRC (rsndvdsrc), GST_FORMAT_TIME);
+  gst_base_src_set_format (GST_BASE_SRC (rsndvdsrc), GST_FORMAT_TIME);
 }
 
 static void
@@ -280,7 +280,7 @@ rsn_dvdsrc_finalize (GObject * object)
 }
 
 static gboolean
-rsn_dvdsrc_unlock (RsnBaseSrc * bsrc)
+rsn_dvdsrc_unlock (GstBaseSrc * bsrc)
 {
   resinDvdSrc *src = RESINDVDSRC (bsrc);
 
@@ -293,7 +293,7 @@ rsn_dvdsrc_unlock (RsnBaseSrc * bsrc)
 }
 
 static gboolean
-rsn_dvdsrc_unlock_stop (RsnBaseSrc * bsrc)
+rsn_dvdsrc_unlock_stop (GstBaseSrc * bsrc)
 {
   resinDvdSrc *src = RESINDVDSRC (bsrc);
 
@@ -355,7 +355,7 @@ rsn_dvdsrc_get_property (GObject * object, guint prop_id,
 }
 
 static gboolean
-rsn_dvdsrc_start (RsnBaseSrc * bsrc)
+rsn_dvdsrc_start (GstBaseSrc * bsrc)
 {
   resinDvdSrc *src = RESINDVDSRC (bsrc);
 
@@ -512,7 +512,7 @@ get_vts_attr (resinDvdSrc * src, gint n)
 }
 
 static gboolean
-rsn_dvdsrc_stop (RsnBaseSrc * bsrc)
+rsn_dvdsrc_stop (GstBaseSrc * bsrc)
 {
   resinDvdSrc *src = RESINDVDSRC (bsrc);
   gboolean ret = TRUE;
@@ -599,7 +599,7 @@ rsn_dvdsrc_do_still (resinDvdSrc * src, int duration)
   GstEvent *hl_event;
   gboolean cmds_changed;
   GstEvent *seg_event;
-  GstSegment *segment = &(RSN_BASE_SRC (src)->segment);
+  GstSegment *segment = &(GST_BASE_SRC (src)->segment);
 
   if (src->in_still_state == FALSE) {
     GST_DEBUG_OBJECT (src, "**** Start STILL FRAME. Duration %d ****",
@@ -629,11 +629,11 @@ rsn_dvdsrc_do_still (resinDvdSrc * src, int duration)
     /* Now, send the events. We need to drop the dvd lock while doing so,
      * and then check after if we got flushed */
     g_mutex_unlock (src->dvd_lock);
-    gst_pad_push_event (RSN_BASE_SRC_PAD (src), still_event);
-    gst_pad_push_event (RSN_BASE_SRC_PAD (src), seg_event);
+    gst_pad_push_event (GST_BASE_SRC_PAD (src), still_event);
+    gst_pad_push_event (GST_BASE_SRC_PAD (src), seg_event);
     if (hl_event) {
       GST_LOG_OBJECT (src, "Sending highlight event before still");
-      gst_pad_push_event (RSN_BASE_SRC_PAD (src), hl_event);
+      gst_pad_push_event (GST_BASE_SRC_PAD (src), hl_event);
     }
     if (cmds_changed)
       rsn_dvdsrc_send_commands_changed (src);
@@ -739,7 +739,7 @@ rsn_dvdsrc_do_still (resinDvdSrc * src, int duration)
           segment->start + (GST_SECOND * duration));
 
     g_mutex_unlock (src->dvd_lock);
-    gst_pad_push_event (RSN_BASE_SRC_PAD (src), still_event);
+    gst_pad_push_event (GST_BASE_SRC_PAD (src), still_event);
     g_mutex_lock (src->dvd_lock);
   }
 
@@ -1089,7 +1089,7 @@ rsn_dvdsrc_step (resinDvdSrc * src, gboolean have_dvd_lock)
     g_mutex_unlock (src->dvd_lock);
     GST_DEBUG_OBJECT (src, "Sending highlight event - button %d",
         src->active_button);
-    gst_pad_push_event (RSN_BASE_SRC_PAD (src), hl_event);
+    gst_pad_push_event (GST_BASE_SRC_PAD (src), hl_event);
     g_mutex_lock (src->dvd_lock);
   }
 
@@ -1223,7 +1223,7 @@ rsn_dvdsrc_prepare_next_block (resinDvdSrc * src, gboolean have_dvd_lock)
 }
 
 static gboolean
-rsn_dvdsrc_check_get_range (RsnBaseSrc * src)
+rsn_dvdsrc_check_get_range (GstBaseSrc * src)
 {
   /* ResinDVD never operates in pull mode. There might be
    * a reason to in the future though? */
@@ -1231,11 +1231,11 @@ rsn_dvdsrc_check_get_range (RsnBaseSrc * src)
 }
 
 static GstFlowReturn
-rsn_dvdsrc_create (RsnBaseSrc * bsrc, guint64 offset,
+rsn_dvdsrc_create (GstBaseSrc * bsrc, guint64 offset,
     guint length, GstBuffer ** outbuf)
 {
   resinDvdSrc *src = RESINDVDSRC (bsrc);
-  GstSegment *segment = &(RSN_BASE_SRC (src)->segment);
+  GstSegment *segment = &(GST_BASE_SRC (src)->segment);
   GstFlowReturn ret;
   GstEvent *streams_event = NULL;
   GstEvent *clut_event = NULL;
@@ -1286,20 +1286,20 @@ rsn_dvdsrc_create (RsnBaseSrc * bsrc, guint64 offset,
    * we change segment */
   if (streams_event) {
     GST_LOG_OBJECT (src, "Pushing stream layout event");
-    gst_pad_push_event (RSN_BASE_SRC_PAD (src), streams_event);
+    gst_pad_push_event (GST_BASE_SRC_PAD (src), streams_event);
   }
   if (clut_event) {
     GST_LOG_OBJECT (src, "Pushing clut event");
-    gst_pad_push_event (RSN_BASE_SRC_PAD (src), clut_event);
+    gst_pad_push_event (GST_BASE_SRC_PAD (src), clut_event);
   }
   /* Out of band events */
   if (spu_select_event) {
     GST_LOG_OBJECT (src, "Pushing spu_select event");
-    gst_pad_push_event (RSN_BASE_SRC_PAD (src), spu_select_event);
+    gst_pad_push_event (GST_BASE_SRC_PAD (src), spu_select_event);
   }
   if (audio_select_event) {
     GST_LOG_OBJECT (src, "Pushing audio_select event");
-    gst_pad_push_event (RSN_BASE_SRC_PAD (src), audio_select_event);
+    gst_pad_push_event (GST_BASE_SRC_PAD (src), audio_select_event);
   }
 
   if (src->need_segment) {
@@ -1317,7 +1317,7 @@ rsn_dvdsrc_create (RsnBaseSrc * bsrc, guint64 offset,
         GST_TIME_ARGS (src->cur_start_ts), GST_TIME_ARGS (src->cur_end_ts),
         GST_TIME_ARGS (src->cur_vobu_base_ts), GST_TIME_ARGS (position));
 
-    gst_base_src_new_seamless_segment (RSN_BASE_SRC (src),
+    gst_base_src_new_seamless_segment (GST_BASE_SRC (src),
         src->cur_start_ts, -1, position);
 
     src->need_segment = FALSE;
@@ -1357,7 +1357,7 @@ rsn_dvdsrc_create (RsnBaseSrc * bsrc, guint64 offset,
   if (highlight_event) {
     GST_LOG_OBJECT (src, "Pushing highlight event with TS %" GST_TIME_FORMAT,
         GST_TIME_ARGS (GST_EVENT_TIMESTAMP (highlight_event)));
-    gst_pad_push_event (RSN_BASE_SRC_PAD (src), highlight_event);
+    gst_pad_push_event (GST_BASE_SRC_PAD (src), highlight_event);
   }
 
   if (angles_msg) {
@@ -1706,7 +1706,7 @@ rsn_dvdsrc_handle_navigation_event (resinDvdSrc * src, GstEvent * event)
       if (hl_event) {
         GST_DEBUG_OBJECT (src, "Sending highlight change event - button: %d",
             src->active_button);
-        gst_pad_push_event (RSN_BASE_SRC_PAD (src), hl_event);
+        gst_pad_push_event (GST_BASE_SRC_PAD (src), hl_event);
       }
 
       /* Send ourselves a seek event to wake everything up and flush */
@@ -1744,7 +1744,7 @@ rsn_dvdsrc_handle_navigation_event (resinDvdSrc * src, GstEvent * event)
     if (hl_event) {
       GST_DEBUG_OBJECT (src, "Sending highlight change event - button: %d",
           src->active_button);
-      gst_pad_push_event (RSN_BASE_SRC_PAD (src), hl_event);
+      gst_pad_push_event (GST_BASE_SRC_PAD (src), hl_event);
     }
 
     if (cmds_changed)
@@ -2147,7 +2147,7 @@ rsn_dvdsrc_enqueue_nav_block (resinDvdSrc * src, GstBuffer * nav_buf,
     GstClockTime ts)
 {
   RsnDvdPendingNav *pend_nav = g_new0 (RsnDvdPendingNav, 1);
-  GstSegment *seg = &(RSN_BASE_SRC (src)->segment);
+  GstSegment *seg = &(GST_BASE_SRC (src)->segment);
 
   pend_nav->buffer = gst_buffer_ref (nav_buf);
   pend_nav->ts = ts;
@@ -2321,7 +2321,7 @@ rsn_dvdsrc_check_nav_blocks (resinDvdSrc * src)
 }
 
 static gboolean
-rsn_dvdsrc_src_event (RsnBaseSrc * basesrc, GstEvent * event)
+rsn_dvdsrc_src_event (GstBaseSrc * basesrc, GstEvent * event)
 {
   resinDvdSrc *src = RESINDVDSRC (basesrc);
   gboolean res;
@@ -2340,13 +2340,13 @@ rsn_dvdsrc_src_event (RsnBaseSrc * basesrc, GstEvent * event)
       GST_DEBUG_OBJECT (src, "%s seek event",
           src->flushing_seek ? "flushing" : "non-flushing");
 
-      res = RSN_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
+      res = GST_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
       break;
     }
     default:
       GST_LOG_OBJECT (src, "handling %s event", GST_EVENT_TYPE_NAME (event));
 
-      res = RSN_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
+      res = GST_BASE_SRC_CLASS (parent_class)->event (basesrc, event);
       break;
   }
 
@@ -2397,7 +2397,7 @@ rsn_dvdsrc_change_state (GstElement * element, GstStateChange transition)
 }
 
 static gboolean
-rsn_dvdsrc_src_query (RsnBaseSrc * basesrc, GstQuery * query)
+rsn_dvdsrc_src_query (GstBaseSrc * basesrc, GstQuery * query)
 {
   resinDvdSrc *src = RESINDVDSRC (basesrc);
   gboolean res = FALSE;
@@ -2478,11 +2478,11 @@ rsn_dvdsrc_src_query (RsnBaseSrc * basesrc, GstQuery * query)
       if (nq_type != GST_NAVIGATION_QUERY_INVALID)
         res = rsn_dvdsrc_handle_navigation_query (src, nq_type, query);
       else
-        res = RSN_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
+        res = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
       break;
     }
     default:
-      res = RSN_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
+      res = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
       break;
   }
 
@@ -2490,13 +2490,13 @@ rsn_dvdsrc_src_query (RsnBaseSrc * basesrc, GstQuery * query)
 }
 
 static gboolean
-rsn_dvdsrc_is_seekable (RsnBaseSrc * bsrc)
+rsn_dvdsrc_is_seekable (GstBaseSrc * bsrc)
 {
   return TRUE;
 }
 
 static gboolean
-rsn_dvdsrc_prepare_seek (RsnBaseSrc * bsrc, GstEvent * event,
+rsn_dvdsrc_prepare_seek (GstBaseSrc * bsrc, GstEvent * event,
     GstSegment * segment)
 {
   GstSeekType cur_type, stop_type;
@@ -2526,7 +2526,7 @@ rsn_dvdsrc_prepare_seek (RsnBaseSrc * bsrc, GstEvent * event,
   }
 
   /* Let basesrc handle other formats */
-  ret = RSN_BASE_SRC_CLASS (parent_class)->prepare_seek_segment (bsrc,
+  ret = GST_BASE_SRC_CLASS (parent_class)->prepare_seek_segment (bsrc,
       event, segment);
 
   return ret;
@@ -2655,7 +2655,7 @@ rsn_dvdsrc_seek_to_time (resinDvdSrc * src, GstClockTime ts)
 }
 
 static gboolean
-rsn_dvdsrc_do_seek (RsnBaseSrc * bsrc, GstSegment * segment)
+rsn_dvdsrc_do_seek (GstBaseSrc * bsrc, GstSegment * segment)
 {
   resinDvdSrc *src = RESINDVDSRC (bsrc);
   gboolean ret = FALSE;
diff --git a/ext/resindvd/resindvdsrc.h b/ext/resindvd/resindvdsrc.h
index 68d93f26d..c3985b6cf 100644
--- a/ext/resindvd/resindvdsrc.h
+++ b/ext/resindvd/resindvdsrc.h
@@ -21,7 +21,7 @@
 
 #include <gst/gst.h>
 
-#include "rsnbasesrc.h"
+#include <gst/base/gstbasesrc.h>
 
 #include "_stdint.h"
 
@@ -46,7 +46,7 @@ typedef struct _resinDvdSrcClass resinDvdSrcClass;
 
 struct _resinDvdSrc
 {
-  RsnBaseSrc parent;
+  GstBaseSrc parent;
 
   gboolean	faststart;
 
@@ -147,7 +147,7 @@ struct _resinDvdSrc
 
 struct _resinDvdSrcClass 
 {
-  RsnBaseSrcClass parent_class;
+  GstBaseSrcClass parent_class;
 };
 
 GType rsn_dvdsrc_get_type (void);
diff --git a/ext/resindvd/rsnbasesrc.c b/ext/resindvd/rsnbasesrc.c
deleted file mode 100644
index 20219f782..000000000
--- a/ext/resindvd/rsnbasesrc.c
+++ /dev/null
@@ -1,2878 +0,0 @@
-/* GStreamer
- * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
- *               2000,2005 Wim Taymans <wim@fluendo.com>
- *
- * rsnbasesrc.c:
- *
- * 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.
- */
-
-/*
- *
- *   This is a temporary copy of RsnBaseSrc/GstPushSrc for the resin
- *   DVD components, to work around a deadlock with source elements that
- *   send seeks to themselves. 
- *
- */
-
-#ifdef HAVE_CONFIG_H
-#  include "config.h"
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "rsnbasesrc.h"
-#include <gst/base/gsttypefindhelper.h>
-#include <gst/gstmarshal.h>
-#include <gst/gst-i18n-plugin.h>
-
-GST_DEBUG_CATEGORY_STATIC (gst_base_src_debug);
-#define GST_CAT_DEFAULT gst_base_src_debug
-
-#define GST_LIVE_GET_LOCK(elem)               (RSN_BASE_SRC_CAST(elem)->live_lock)
-#define GST_LIVE_LOCK(elem)                   g_mutex_lock(GST_LIVE_GET_LOCK(elem))
-#define GST_LIVE_TRYLOCK(elem)                g_mutex_trylock(GST_LIVE_GET_LOCK(elem))
-#define GST_LIVE_UNLOCK(elem)                 g_mutex_unlock(GST_LIVE_GET_LOCK(elem))
-#define GST_LIVE_GET_COND(elem)               (RSN_BASE_SRC_CAST(elem)->live_cond)
-#define GST_LIVE_WAIT(elem)                   g_cond_wait (GST_LIVE_GET_COND (elem), GST_LIVE_GET_LOCK (elem))
-#define GST_LIVE_TIMED_WAIT(elem, timeval)    g_cond_timed_wait (GST_LIVE_GET_COND (elem), GST_LIVE_GET_LOCK (elem),\
-                                                                                timeval)
-#define GST_LIVE_SIGNAL(elem)                 g_cond_signal (GST_LIVE_GET_COND (elem));
-#define GST_LIVE_BROADCAST(elem)              g_cond_broadcast (GST_LIVE_GET_COND (elem));
-
-/* BaseSrc signals and args */
-enum
-{
-  /* FILL ME */
-  LAST_SIGNAL
-};
-
-#define DEFAULT_BLOCKSIZE       4096
-#define DEFAULT_NUM_BUFFERS     -1
-#define DEFAULT_TYPEFIND        FALSE
-#define DEFAULT_DO_TIMESTAMP    FALSE
-
-enum
-{
-  PROP_0,
-  PROP_BLOCKSIZE,
-  PROP_NUM_BUFFERS,
-  PROP_TYPEFIND,
-  PROP_DO_TIMESTAMP
-};
-
-#define RSN_BASE_SRC_GET_PRIVATE(obj)  \
-   (G_TYPE_INSTANCE_GET_PRIVATE ((obj), RSN_TYPE_BASE_SRC, RsnBaseSrcPrivate))
-
-struct _RsnBaseSrcPrivate
-{
-  gboolean last_sent_eos;       /* last thing we did was send an EOS (we set this
-                                 * to avoid the sending of two EOS in some cases) */
-  gboolean discont;
-  gboolean flushing;
-
-  /* two segments to be sent in the streaming thread with STREAM_LOCK */
-  GstEvent *close_segment;
-  GstEvent *start_segment;
-
-  /* if EOS is pending (atomic) */
-  gint pending_eos;
-
-  /* startup latency is the time it takes between going to PLAYING and producing
-   * the first BUFFER with running_time 0. This value is included in the latency
-   * reporting. */
-  GstClockTime latency;
-  /* timestamp offset, this is the offset add to the values of gst_times for
-   * pseudo live sources */
-  GstClockTimeDiff ts_offset;
-
-  gboolean do_timestamp;
-
-  /* stream sequence number */
-  guint32 seqnum;
-
-  /* pending tags to be pushed in the data stream */
-  GList *pending_tags;
-};
-
-static GstElementClass *parent_class = NULL;
-
-static void gst_base_src_base_init (gpointer g_class);
-static void gst_base_src_class_init (RsnBaseSrcClass * klass);
-static void gst_base_src_init (RsnBaseSrc * src, gpointer g_class);
-static void gst_base_src_finalize (GObject * object);
-
-
-GType
-gst_base_src_get_type (void)
-{
-  static volatile gsize base_src_type = 0;
-
-  if (g_once_init_enter (&base_src_type)) {
-    GType _type;
-    static const GTypeInfo base_src_info = {
-      sizeof (RsnBaseSrcClass),
-      (GBaseInitFunc) gst_base_src_base_init,
-      NULL,
-      (GClassInitFunc) gst_base_src_class_init,
-      NULL,
-      NULL,
-      sizeof (RsnBaseSrc),
-      0,
-      (GInstanceInitFunc) gst_base_src_init,
-    };
-
-    _type = g_type_register_static (GST_TYPE_ELEMENT,
-        "RsnBaseSrc", &base_src_info, G_TYPE_FLAG_ABSTRACT);
-    g_once_init_leave (&base_src_type, _type);
-  }
-  return base_src_type;
-}
-
-static GstCaps *gst_base_src_getcaps (GstPad * pad);
-static gboolean gst_base_src_setcaps (GstPad * pad, GstCaps * caps);
-static void gst_base_src_fixate (GstPad * pad, GstCaps * caps);
-
-static gboolean gst_base_src_activate_push (GstPad * pad, gboolean active);
-static gboolean gst_base_src_activate_pull (GstPad * pad, gboolean active);
-static void gst_base_src_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec);
-static void gst_base_src_get_property (GObject * object, guint prop_id,
-    GValue * value, GParamSpec * pspec);
-static gboolean gst_base_src_event_handler (GstPad * pad, GstEvent * event);
-static gboolean gst_base_src_send_event (GstElement * elem, GstEvent * event);
-static gboolean gst_base_src_default_event (RsnBaseSrc * src, GstEvent * event);
-static const GstQueryType *gst_base_src_get_query_types (GstElement * element);
-
-static gboolean gst_base_src_query (GstPad * pad, GstQuery * query);
-
-static gboolean gst_base_src_default_negotiate (RsnBaseSrc * basesrc);
-static gboolean gst_base_src_default_do_seek (RsnBaseSrc * src,
-    GstSegment * segment);
-static gboolean gst_base_src_default_query (RsnBaseSrc * src, GstQuery * query);
-static gboolean gst_base_src_default_prepare_seek_segment (RsnBaseSrc * src,
-    GstEvent * event, GstSegment * segment);
-
-static gboolean gst_base_src_set_flushing (RsnBaseSrc * basesrc,
-    gboolean flushing, gboolean live_play, gboolean unlock, gboolean * playing);
-static gboolean gst_base_src_start (RsnBaseSrc * basesrc);
-static gboolean gst_base_src_stop (RsnBaseSrc * basesrc);
-
-static GstStateChangeReturn gst_base_src_change_state (GstElement * element,
-    GstStateChange transition);
-
-static void gst_base_src_loop (GstPad * pad);
-static gboolean gst_base_src_pad_check_get_range (GstPad * pad);
-static gboolean gst_base_src_default_check_get_range (RsnBaseSrc * bsrc);
-static GstFlowReturn gst_base_src_pad_get_range (GstPad * pad, guint64 offset,
-    guint length, GstBuffer ** buf);
-static GstFlowReturn gst_base_src_get_range (RsnBaseSrc * src, guint64 offset,
-    guint length, GstBuffer ** buf);
-static gboolean gst_base_src_seekable (RsnBaseSrc * src);
-
-static void
-gst_base_src_base_init (gpointer g_class)
-{
-  GST_DEBUG_CATEGORY_INIT (gst_base_src_debug, "basesrc", 0, "basesrc element");
-}
-
-static void
-gst_base_src_class_init (RsnBaseSrcClass * klass)
-{
-  GObjectClass *gobject_class;
-  GstElementClass *gstelement_class;
-
-  gobject_class = G_OBJECT_CLASS (klass);
-  gstelement_class = GST_ELEMENT_CLASS (klass);
-
-  g_type_class_add_private (klass, sizeof (RsnBaseSrcPrivate));
-
-  parent_class = g_type_class_peek_parent (klass);
-
-  gobject_class->finalize = gst_base_src_finalize;
-  gobject_class->set_property = gst_base_src_set_property;
-  gobject_class->get_property = gst_base_src_get_property;
-
-  g_object_class_install_property (gobject_class, PROP_BLOCKSIZE,
-      g_param_spec_ulong ("blocksize", "Block size",
-          "Size in bytes to read per buffer (-1 = default)", 0, G_MAXULONG,
-          DEFAULT_BLOCKSIZE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-  g_object_class_install_property (gobject_class, PROP_NUM_BUFFERS,
-      g_param_spec_int ("num-buffers", "num-buffers",
-          "Number of buffers to output before sending EOS (-1 = unlimited)",
-          -1, G_MAXINT, DEFAULT_NUM_BUFFERS, G_PARAM_READWRITE |
-          G_PARAM_STATIC_STRINGS));
-  g_object_class_install_property (gobject_class, PROP_TYPEFIND,
-      g_param_spec_boolean ("typefind", "Typefind",
-          "Run typefind before negotiating", DEFAULT_TYPEFIND,
-          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-  g_object_class_install_property (gobject_class, PROP_DO_TIMESTAMP,
-      g_param_spec_boolean ("do-timestamp", "Do timestamp",
-          "Apply current stream time to buffers", DEFAULT_DO_TIMESTAMP,
-          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-  gstelement_class->change_state =
-      GST_DEBUG_FUNCPTR (gst_base_src_change_state);
-  gstelement_class->send_event = GST_DEBUG_FUNCPTR (gst_base_src_send_event);
-  gstelement_class->get_query_types =
-      GST_DEBUG_FUNCPTR (gst_base_src_get_query_types);
-
-  klass->negotiate = GST_DEBUG_FUNCPTR (gst_base_src_default_negotiate);
-  klass->event = GST_DEBUG_FUNCPTR (gst_base_src_default_event);
-  klass->do_seek = GST_DEBUG_FUNCPTR (gst_base_src_default_do_seek);
-  klass->query = GST_DEBUG_FUNCPTR (gst_base_src_default_query);
-  klass->check_get_range =
-      GST_DEBUG_FUNCPTR (gst_base_src_default_check_get_range);
-  klass->prepare_seek_segment =
-      GST_DEBUG_FUNCPTR (gst_base_src_default_prepare_seek_segment);
-}
-
-static void
-gst_base_src_init (RsnBaseSrc * basesrc, gpointer g_class)
-{
-  GstPad *pad;
-  GstPadTemplate *pad_template;
-
-  basesrc->priv = RSN_BASE_SRC_GET_PRIVATE (basesrc);
-
-  basesrc->is_live = FALSE;
-  basesrc->live_lock = g_mutex_new ();
-  basesrc->live_cond = g_cond_new ();
-  basesrc->num_buffers = DEFAULT_NUM_BUFFERS;
-  basesrc->num_buffers_left = -1;
-
-  basesrc->can_activate_push = TRUE;
-  basesrc->pad_mode = GST_ACTIVATE_NONE;
-
-  pad_template =
-      gst_element_class_get_pad_template (GST_ELEMENT_CLASS (g_class), "src");
-  g_return_if_fail (pad_template != NULL);
-
-  GST_DEBUG_OBJECT (basesrc, "creating src pad");
-  pad = gst_pad_new_from_template (pad_template, "src");
-
-  GST_DEBUG_OBJECT (basesrc, "setting functions on src pad");
-  gst_pad_set_activatepush_function (pad,
-      GST_DEBUG_FUNCPTR (gst_base_src_activate_push));
-  gst_pad_set_activatepull_function (pad,
-      GST_DEBUG_FUNCPTR (gst_base_src_activate_pull));
-  gst_pad_set_event_function (pad,
-      GST_DEBUG_FUNCPTR (gst_base_src_event_handler));
-  gst_pad_set_query_function (pad, GST_DEBUG_FUNCPTR (gst_base_src_query));
-  gst_pad_set_checkgetrange_function (pad,
-      GST_DEBUG_FUNCPTR (gst_base_src_pad_check_get_range));
-  gst_pad_set_getrange_function (pad,
-      GST_DEBUG_FUNCPTR (gst_base_src_pad_get_range));
-  gst_pad_set_getcaps_function (pad, GST_DEBUG_FUNCPTR (gst_base_src_getcaps));
-  gst_pad_set_setcaps_function (pad, GST_DEBUG_FUNCPTR (gst_base_src_setcaps));
-  gst_pad_set_fixatecaps_function (pad,
-      GST_DEBUG_FUNCPTR (gst_base_src_fixate));
-
-  /* hold pointer to pad */
-  basesrc->srcpad = pad;
-  GST_DEBUG_OBJECT (basesrc, "adding src pad");
-  gst_element_add_pad (GST_ELEMENT (basesrc), pad);
-
-  basesrc->blocksize = DEFAULT_BLOCKSIZE;
-  basesrc->clock_id = NULL;
-  /* we operate in BYTES by default */
-  gst_base_src_set_format (basesrc, GST_FORMAT_BYTES);
-  basesrc->data.ABI.typefind = DEFAULT_TYPEFIND;
-  basesrc->priv->do_timestamp = DEFAULT_DO_TIMESTAMP;
-
-  GST_OBJECT_FLAG_UNSET (basesrc, RSN_BASE_SRC_STARTED);
-
-  GST_DEBUG_OBJECT (basesrc, "init done");
-}
-
-static void
-gst_base_src_finalize (GObject * object)
-{
-  RsnBaseSrc *basesrc;
-  GstEvent **event_p;
-
-  basesrc = RSN_BASE_SRC (object);
-
-  g_mutex_free (basesrc->live_lock);
-  g_cond_free (basesrc->live_cond);
-
-  event_p = &basesrc->data.ABI.pending_seek;
-  gst_event_replace (event_p, NULL);
-
-  if (basesrc->priv->pending_tags) {
-    g_list_foreach (basesrc->priv->pending_tags, (GFunc) gst_event_unref, NULL);
-    g_list_free (basesrc->priv->pending_tags);
-  }
-
-  G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-/**
- * gst_base_src_wait_playing:
- * @src: the src
- *
- * If the #RsnBaseSrcClass::create method performs its own synchronisation against
- * the clock it must unblock when going from PLAYING to the PAUSED state and call
- * this method before continuing to produce the remaining data.
- *
- * This function will block until a state change to PLAYING happens (in which
- * case this function returns #GST_FLOW_OK) or the processing must be stopped due
- * to a state change to READY or a FLUSH event (in which case this function
- * returns #GST_FLOW_WRONG_STATE).
- *
- * Since: 0.10.12
- *
- * Returns: #GST_FLOW_OK if @src is PLAYING and processing can
- * continue. Any other return value should be returned from the create vmethod.
- */
-GstFlowReturn
-gst_base_src_wait_playing (RsnBaseSrc * src)
-{
-  g_return_val_if_fail (GST_IS_BASE_SRC (src), GST_FLOW_ERROR);
-
-  /* block until the state changes, or we get a flush, or something */
-  GST_DEBUG_OBJECT (src, "live source waiting for running state");
-  GST_LIVE_WAIT (src);
-  if (src->priv->flushing)
-    goto flushing;
-  GST_DEBUG_OBJECT (src, "live source unlocked");
-
-  return GST_FLOW_OK;
-
-  /* ERRORS */
-flushing:
-  {
-    GST_DEBUG_OBJECT (src, "we are flushing");
-    return GST_FLOW_WRONG_STATE;
-  }
-}
-
-/**
- * gst_base_src_set_live:
- * @src: base source instance
- * @live: new live-mode
- *
- * If the element listens to a live source, @live should
- * be set to %TRUE.
- *
- * A live source will not produce data in the PAUSED state and
- * will therefore not be able to participate in the PREROLL phase
- * of a pipeline. To signal this fact to the application and the
- * pipeline, the state change return value of the live source will
- * be GST_STATE_CHANGE_NO_PREROLL.
- */
-void
-gst_base_src_set_live (RsnBaseSrc * src, gboolean live)
-{
-  g_return_if_fail (GST_IS_BASE_SRC (src));
-
-  GST_OBJECT_LOCK (src);
-  src->is_live = live;
-  GST_OBJECT_UNLOCK (src);
-}
-
-/**
- * gst_base_src_is_live:
- * @src: base source instance
- *
- * Check if an element is in live mode.
- *
- * Returns: %TRUE if element is in live mode.
- */
-gboolean
-gst_base_src_is_live (RsnBaseSrc * src)
-{
-  gboolean result;
-
-  g_return_val_if_fail (GST_IS_BASE_SRC (src), FALSE);
-
-  GST_OBJECT_LOCK (src);
-  result = src->is_live;
-  GST_OBJECT_UNLOCK (src);
-
-  return result;
-}
-
-/**
- * gst_base_src_set_format:
- * @src: base source instance
- * @format: the format to use
- *
- * Sets the default format of the source. This will be the format used
- * for sending NEW_SEGMENT events and for performing seeks.
- *
- * If a format of GST_FORMAT_BYTES is set, the element will be able to
- * operate in pull mode if the #RsnBaseSrc::is_seekable returns TRUE.
- *
- * Since: 0.10.1
- */
-void
-gst_base_src_set_format (RsnBaseSrc * src, GstFormat format)
-{
-  g_return_if_fail (GST_IS_BASE_SRC (src));
-
-  gst_segment_init (&src->segment, format);
-}
-
-/**
- * gst_base_src_query_latency:
- * @src: the source
- * @live: if the source is live
- * @min_latency: the min latency of the source
- * @max_latency: the max latency of the source
- *
- * Query the source for the latency parameters. @live will be TRUE when @src is
- * configured as a live source. @min_latency will be set to the difference
- * between the running time and the timestamp of the first buffer.
- * @max_latency is always the undefined value of -1.
- *
- * This function is mostly used by subclasses.
- *
- * Returns: TRUE if the query succeeded.
- *
- * Since: 0.10.13
- */
-gboolean
-gst_base_src_query_latency (RsnBaseSrc * src, gboolean * live,
-    GstClockTime * min_latency, GstClockTime * max_latency)
-{
-  GstClockTime min;
-
-  g_return_val_if_fail (GST_IS_BASE_SRC (src), FALSE);
-
-  GST_OBJECT_LOCK (src);
-  if (live)
-    *live = src->is_live;
-
-  /* if we have a startup latency, report this one, else report 0. Subclasses
-   * are supposed to override the query function if they want something
-   * else. */
-  if (src->priv->latency != -1)
-    min = src->priv->latency;
-  else
-    min = 0;
-
-  if (min_latency)
-    *min_latency = min;
-  if (max_latency)
-    *max_latency = -1;
-
-  GST_LOG_OBJECT (src, "latency: live %d, min %" GST_TIME_FORMAT
-      ", max %" GST_TIME_FORMAT, src->is_live, GST_TIME_ARGS (min),
-      GST_TIME_ARGS (-1));
-  GST_OBJECT_UNLOCK (src);
-
-  return TRUE;
-}
-
-/**
- * gst_base_src_set_blocksize:
- * @src: the source
- * @blocksize: the new blocksize in bytes
- *
- * Set the number of bytes that @src will push out with each buffer. When
- * @blocksize is set to -1, a default length will be used.
- *
- * Since: 0.10.22
- */
-void
-gst_base_src_set_blocksize (RsnBaseSrc * src, gulong blocksize)
-{
-  g_return_if_fail (GST_IS_BASE_SRC (src));
-
-  GST_OBJECT_LOCK (src);
-  src->blocksize = blocksize;
-  GST_OBJECT_UNLOCK (src);
-}
-
-/**
- * gst_base_src_get_blocksize:
- * @src: the source
- *
- * Get the number of bytes that @src will push out with each buffer.
- *
- * Returns: the number of bytes pushed with each buffer.
- *
- * Since: 0.10.22
- */
-gulong
-gst_base_src_get_blocksize (RsnBaseSrc * src)
-{
-  gulong res;
-
-  g_return_val_if_fail (GST_IS_BASE_SRC (src), 0);
-
-  GST_OBJECT_LOCK (src);
-  res = src->blocksize;
-  GST_OBJECT_UNLOCK (src);
-
-  return res;
-}
-
-
-/**
- * gst_base_src_set_do_timestamp:
- * @src: the source
- * @timestamp: enable or disable timestamping
- *
- * Configure @src to automatically timestamp outgoing buffers based on the
- * current running_time of the pipeline. This property is mostly useful for live
- * sources.
- *
- * Since: 0.10.15
- */
-void
-gst_base_src_set_do_timestamp (RsnBaseSrc * src, gboolean timestamp)
-{
-  g_return_if_fail (GST_IS_BASE_SRC (src));
-
-  GST_OBJECT_LOCK (src);
-  src->priv->do_timestamp = timestamp;
-  GST_OBJECT_UNLOCK (src);
-}
-
-/**
- * gst_base_src_get_do_timestamp:
- * @src: the source
- *
- * Query if @src timestamps outgoing buffers based on the current running_time.
- *
- * Returns: %TRUE if the base class will automatically timestamp outgoing buffers.
- *
- * Since: 0.10.15
- */
-gboolean
-gst_base_src_get_do_timestamp (RsnBaseSrc * src)
-{
-  gboolean res;
-
-  g_return_val_if_fail (GST_IS_BASE_SRC (src), FALSE);
-
-  GST_OBJECT_LOCK (src);
-  res = src->priv->do_timestamp;
-  GST_OBJECT_UNLOCK (src);
-
-  return res;
-}
-
-/**
- * gst_base_src_new_seamless_segment:
- * @src: The source
- * @start: The new start value for the segment
- * @stop: Stop value for the new segment
- * @position: The position value for the new segent
- *
- * Prepare a new seamless segment for emission downstream. This function must
- * only be called by derived sub-classes, and only from the create() function,
- * as the stream-lock needs to be held.
- *
- * The format for the new segment will be the current format of the source, as
- * configured with gst_base_src_set_format()
- * 
- * Returns: %TRUE if preparation of the seamless segment succeeded.
- *
- * Since: 0.10.26
- */
-gboolean
-gst_base_src_new_seamless_segment (RsnBaseSrc * src, gint64 start, gint64 stop,
-    gint64 position)
-{
-  gboolean res = TRUE;
-
-  GST_DEBUG_OBJECT (src,
-      "Starting new seamless segment. Start %" GST_TIME_FORMAT " stop %"
-      GST_TIME_FORMAT " position %" GST_TIME_FORMAT, GST_TIME_ARGS (start),
-      GST_TIME_ARGS (stop), GST_TIME_ARGS (position));
-
-  if (src->data.ABI.running) {
-    if (src->priv->close_segment)
-      gst_event_unref (src->priv->close_segment);
-    src->priv->close_segment =
-        gst_event_new_new_segment_full (TRUE,
-        src->segment.rate, src->segment.applied_rate, src->segment.format,
-        src->segment.start, src->segment.last_stop, src->segment.time);
-  }
-
-  gst_segment_set_newsegment_full (&src->segment, FALSE, src->segment.rate,
-      src->segment.applied_rate, src->segment.format, start, stop, position);
-
-  if (src->priv->start_segment)
-    gst_event_unref (src->priv->start_segment);
-  if (src->segment.rate >= 0.0) {
-    /* forward, we send data from last_stop to stop */
-    src->priv->start_segment =
-        gst_event_new_new_segment_full (FALSE,
-        src->segment.rate, src->segment.applied_rate, src->segment.format,
-        src->segment.last_stop, stop, src->segment.time);
-  } else {
-    /* reverse, we send data from last_stop to start */
-    src->priv->start_segment =
-        gst_event_new_new_segment_full (FALSE,
-        src->segment.rate, src->segment.applied_rate, src->segment.format,
-        src->segment.start, src->segment.last_stop, src->segment.time);
-  }
-
-  src->priv->discont = TRUE;
-  src->data.ABI.running = TRUE;
-
-  return res;
-}
-
-static gboolean
-gst_base_src_setcaps (GstPad * pad, GstCaps * caps)
-{
-  RsnBaseSrcClass *bclass;
-  RsnBaseSrc *bsrc;
-  gboolean res = TRUE;
-
-  bsrc = RSN_BASE_SRC (GST_PAD_PARENT (pad));
-  bclass = RSN_BASE_SRC_GET_CLASS (bsrc);
-
-  if (bclass->set_caps)
-    res = bclass->set_caps (bsrc, caps);
-
-  return res;
-}
-
-static GstCaps *
-gst_base_src_getcaps (GstPad * pad)
-{
-  RsnBaseSrcClass *bclass;
-  RsnBaseSrc *bsrc;
-  GstCaps *caps = NULL;
-
-  bsrc = RSN_BASE_SRC (GST_PAD_PARENT (pad));
-  bclass = RSN_BASE_SRC_GET_CLASS (bsrc);
-  if (bclass->get_caps)
-    caps = bclass->get_caps (bsrc);
-
-  if (caps == NULL) {
-    GstPadTemplate *pad_template;
-
-    pad_template =
-        gst_element_class_get_pad_template (GST_ELEMENT_CLASS (bclass), "src");
-    if (pad_template != NULL) {
-      caps = gst_caps_ref (gst_pad_template_get_caps (pad_template));
-    }
-  }
-  return caps;
-}
-
-static void
-gst_base_src_fixate (GstPad * pad, GstCaps * caps)
-{
-  RsnBaseSrcClass *bclass;
-  RsnBaseSrc *bsrc;
-
-  bsrc = RSN_BASE_SRC (gst_pad_get_parent (pad));
-  bclass = RSN_BASE_SRC_GET_CLASS (bsrc);
-
-  if (bclass->fixate)
-    bclass->fixate (bsrc, caps);
-
-  gst_object_unref (bsrc);
-}
-
-static gboolean
-gst_base_src_default_query (RsnBaseSrc * src, GstQuery * query)
-{
-  gboolean res;
-
-  switch (GST_QUERY_TYPE (query)) {
-    case GST_QUERY_POSITION:
-    {
-      GstFormat format;
-
-      gst_query_parse_position (query, &format, NULL);
-      switch (format) {
-        case GST_FORMAT_PERCENT:
-        {
-          gint64 percent;
-          gint64 position;
-          gint64 duration;
-
-          position = src->segment.last_stop;
-          duration = src->segment.duration;
-
-          if (position != -1 && duration != -1) {
-            if (position < duration)
-              percent = gst_util_uint64_scale (GST_FORMAT_PERCENT_MAX, position,
-                  duration);
-            else
-              percent = GST_FORMAT_PERCENT_MAX;
-          } else
-            percent = -1;
-
-          gst_query_set_position (query, GST_FORMAT_PERCENT, percent);
-          res = TRUE;
-          break;
-        }
-        default:
-        {
-          gint64 position;
-
-          position = src->segment.last_stop;
-
-          if (position != -1) {
-            /* convert to requested format */
-            res =
-                gst_pad_query_convert (src->srcpad, src->segment.format,
-                position, &format, &position);
-          } else
-            res = TRUE;
-
-          gst_query_set_position (query, format, position);
-          break;
-        }
-      }
-      break;
-    }
-    case GST_QUERY_DURATION:
-    {
-      GstFormat format;
-
-      gst_query_parse_duration (query, &format, NULL);
-
-      GST_DEBUG_OBJECT (src, "duration query in format %s",
-          gst_format_get_name (format));
-
-      switch (format) {
-        case GST_FORMAT_PERCENT:
-          gst_query_set_duration (query, GST_FORMAT_PERCENT,
-              GST_FORMAT_PERCENT_MAX);
-          res = TRUE;
-          break;
-        default:
-        {
-          gint64 duration;
-
-          /* this is the duration as configured by the subclass. */
-          duration = src->segment.duration;
-
-          if (duration != -1) {
-            /* convert to requested format, if this fails, we have a duration
-             * but we cannot answer the query, we must return FALSE. */
-            res =
-                gst_pad_query_convert (src->srcpad, src->segment.format,
-                duration, &format, &duration);
-          } else {
-            /* The subclass did not configure a duration, we assume that the
-             * media has an unknown duration then and we return TRUE to report
-             * this. Note that this is not the same as returning FALSE, which
-             * means that we cannot report the duration at all. */
-            res = TRUE;
-          }
-          gst_query_set_duration (query, format, duration);
-          break;
-        }
-      }
-      break;
-    }
-
-    case GST_QUERY_SEEKING:
-    {
-      GstFormat format;
-
-      gst_query_parse_seeking (query, &format, NULL, NULL, NULL);
-      if (format == src->segment.format) {
-        gst_query_set_seeking (query, src->segment.format,
-            gst_base_src_seekable (src), 0, src->segment.duration);
-        res = TRUE;
-      } else {
-        /* FIXME 0.11: return TRUE + seekable=FALSE for SEEKING query here */
-        /* Don't reply to the query to make up for demuxers which don't
-         * handle the SEEKING query yet. Players like Totem will fall back
-         * to the duration when the SEEKING query isn't answered. */
-        res = FALSE;
-      }
-      break;
-    }
-    case GST_QUERY_SEGMENT:
-    {
-      gint64 start, stop;
-
-      /* no end segment configured, current duration then */
-      if ((stop = src->segment.stop) == -1)
-        stop = src->segment.duration;
-      start = src->segment.start;
-
-      /* adjust to stream time */
-      if (src->segment.time != -1) {
-        start -= src->segment.time;
-        if (stop != -1)
-          stop -= src->segment.time;
-      }
-      gst_query_set_segment (query, src->segment.rate, src->segment.format,
-          start, stop);
-      res = TRUE;
-      break;
-    }
-
-    case GST_QUERY_FORMATS:
-    {
-      gst_query_set_formats (query, 3, GST_FORMAT_DEFAULT,
-          GST_FORMAT_BYTES, GST_FORMAT_PERCENT);
-      res = TRUE;
-      break;
-    }
-    case GST_QUERY_CONVERT:
-    {
-      GstFormat src_fmt, dest_fmt;
-      gint64 src_val, dest_val;
-
-      gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
-
-      /* we can only convert between equal formats... */
-      if (src_fmt == dest_fmt) {
-        dest_val = src_val;
-        res = TRUE;
-      } else
-        res = FALSE;
-
-      gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
-      break;
-    }
-    case GST_QUERY_LATENCY:
-    {
-      GstClockTime min, max;
-      gboolean live;
-
-      /* Subclasses should override and implement something usefull */
-      res = gst_base_src_query_latency (src, &live, &min, &max);
-
-      GST_LOG_OBJECT (src, "report latency: live %d, min %" GST_TIME_FORMAT
-          ", max %" GST_TIME_FORMAT, live, GST_TIME_ARGS (min),
-          GST_TIME_ARGS (max));
-
-      gst_query_set_latency (query, live, min, max);
-      break;
-    }
-    case GST_QUERY_JITTER:
-    case GST_QUERY_RATE:
-      res = FALSE;
-      break;
-    case GST_QUERY_BUFFERING:
-    {
-      GstFormat format;
-      gint64 start, stop, estimated;
-
-      gst_query_parse_buffering_range (query, &format, NULL, NULL, NULL);
-
-      GST_DEBUG_OBJECT (src, "buffering query in format %s",
-          gst_format_get_name (format));
-
-      if (src->random_access) {
-        estimated = 0;
-        start = 0;
-        if (format == GST_FORMAT_PERCENT)
-          stop = GST_FORMAT_PERCENT_MAX;
-        else
-          stop = src->segment.duration;
-      } else {
-        estimated = -1;
-        start = -1;
-        stop = -1;
-      }
-      /* convert to required format. When the conversion fails, we can't answer
-       * the query. When the value is unknown, we can don't perform conversion
-       * but report TRUE. */
-      if (format != GST_FORMAT_PERCENT && stop != -1) {
-        res = gst_pad_query_convert (src->srcpad, src->segment.format,
-            stop, &format, &stop);
-      } else {
-        res = TRUE;
-      }
-      if (res && format != GST_FORMAT_PERCENT && start != -1)
-        res = gst_pad_query_convert (src->srcpad, src->segment.format,
-            start, &format, &start);
-
-      gst_query_set_buffering_range (query, format, start, stop, estimated);
-      break;
-    }
-    default:
-      res = FALSE;
-      break;
-  }
-  GST_DEBUG_OBJECT (src, "query %s returns %d", GST_QUERY_TYPE_NAME (query),
-      res);
-  return res;
-}
-
-static gboolean
-gst_base_src_query (GstPad * pad, GstQuery * query)
-{
-  RsnBaseSrc *src;
-  RsnBaseSrcClass *bclass;
-  gboolean result = FALSE;
-
-  src = RSN_BASE_SRC (gst_pad_get_parent (pad));
-
-  bclass = RSN_BASE_SRC_GET_CLASS (src);
-
-  if (bclass->query)
-    result = bclass->query (src, query);
-  else
-    result = gst_pad_query_default (pad, query);
-
-  gst_object_unref (src);
-
-  return result;
-}
-
-static gboolean
-gst_base_src_default_do_seek (RsnBaseSrc * src, GstSegment * segment)
-{
-  gboolean res = TRUE;
-
-  /* update our offset if the start/stop position was updated */
-  if (segment->format == GST_FORMAT_BYTES) {
-    segment->time = segment->start;
-  } else if (segment->start == 0) {
-    /* seek to start, we can implement a default for this. */
-    segment->time = 0;
-  } else {
-    res = FALSE;
-    GST_INFO_OBJECT (src, "Can't do a default seek");
-  }
-
-  return res;
-}
-
-static gboolean
-gst_base_src_do_seek (RsnBaseSrc * src, GstSegment * segment)
-{
-  RsnBaseSrcClass *bclass;
-  gboolean result = FALSE;
-
-  bclass = RSN_BASE_SRC_GET_CLASS (src);
-
-  if (bclass->do_seek)
-    result = bclass->do_seek (src, segment);
-
-  return result;
-}
-
-#define SEEK_TYPE_IS_RELATIVE(t) (((t) != GST_SEEK_TYPE_NONE) && ((t) != GST_SEEK_TYPE_SET))
-
-static gboolean
-gst_base_src_default_prepare_seek_segment (RsnBaseSrc * src, GstEvent * event,
-    GstSegment * segment)
-{
-  /* By default, we try one of 2 things:
-   *   - For absolute seek positions, convert the requested position to our
-   *     configured processing format and place it in the output segment \
-   *   - For relative seek positions, convert our current (input) values to the
-   *     seek format, adjust by the relative seek offset and then convert back to
-   *     the processing format
-   */
-  GstSeekType cur_type, stop_type;
-  gint64 cur, stop;
-  GstSeekFlags flags;
-  GstFormat seek_format, dest_format;
-  gdouble rate;
-  gboolean update;
-  gboolean res = TRUE;
-
-  gst_event_parse_seek (event, &rate, &seek_format, &flags,
-      &cur_type, &cur, &stop_type, &stop);
-  dest_format = segment->format;
-
-  if (seek_format == dest_format) {
-    gst_segment_set_seek (segment, rate, seek_format, flags,
-        cur_type, cur, stop_type, stop, &update);
-    return TRUE;
-  }
-
-  if (cur_type != GST_SEEK_TYPE_NONE) {
-    /* FIXME: Handle seek_cur & seek_end by converting the input segment vals */
-    res =
-        gst_pad_query_convert (src->srcpad, seek_format, cur, &dest_format,
-        &cur);
-    cur_type = GST_SEEK_TYPE_SET;
-  }
-
-  if (res && stop_type != GST_SEEK_TYPE_NONE) {
-    /* FIXME: Handle seek_cur & seek_end by converting the input segment vals */
-    res =
-        gst_pad_query_convert (src->srcpad, seek_format, stop, &dest_format,
-        &stop);
-    stop_type = GST_SEEK_TYPE_SET;
-  }
-
-  /* And finally, configure our output segment in the desired format */
-  gst_segment_set_seek (segment, rate, dest_format, flags, cur_type, cur,
-      stop_type, stop, &update);
-
-  if (!res)
-    goto no_format;
-
-  return res;
-
-no_format:
-  {
-    GST_DEBUG_OBJECT (src, "undefined format given, seek aborted.");
-    return FALSE;
-  }
-}
-
-static gboolean
-gst_base_src_prepare_seek_segment (RsnBaseSrc * src, GstEvent * event,
-    GstSegment * seeksegment)
-{
-  RsnBaseSrcClass *bclass;
-  gboolean result = FALSE;
-
-  bclass = RSN_BASE_SRC_GET_CLASS (src);
-
-  if (bclass->prepare_seek_segment)
-    result = bclass->prepare_seek_segment (src, event, seeksegment);
-
-  return result;
-}
-
-/* this code implements the seeking. It is a good example
- * handling all cases.
- *
- * A seek updates the currently configured segment.start
- * and segment.stop values based on the SEEK_TYPE. If the
- * segment.start value is updated, a seek to this new position
- * should be performed.
- *
- * The seek can only be executed when we are not currently
- * streaming any data, to make sure that this is the case, we
- * acquire the STREAM_LOCK which is taken when we are in the
- * _loop() function or when a getrange() is called. Normally
- * we will not receive a seek if we are operating in pull mode
- * though. When we operate as a live source we might block on the live
- * cond, which does not release the STREAM_LOCK. Therefore we will try
- * to grab the LIVE_LOCK instead of the STREAM_LOCK to make sure it is
- * safe to perform the seek.
- *
- * When we are in the loop() function, we might be in the middle
- * of pushing a buffer, which might block in a sink. To make sure
- * that the push gets unblocked we push out a FLUSH_START event.
- * Our loop function will get a WRONG_STATE return value from
- * the push and will pause, effectively releasing the STREAM_LOCK.
- *
- * For a non-flushing seek, we pause the task, which might eventually
- * release the STREAM_LOCK. We say eventually because when the sink
- * blocks on the sample we might wait a very long time until the sink
- * unblocks the sample. In any case we acquire the STREAM_LOCK and
- * can continue the seek. A non-flushing seek is normally done in a
- * running pipeline to perform seamless playback, this means that the sink is
- * PLAYING and will return from its chain function.
- * In the case of a non-flushing seek we need to make sure that the
- * data we output after the seek is continuous with the previous data,
- * this is because a non-flushing seek does not reset the running-time
- * to 0. We do this by closing the currently running segment, ie. sending
- * a new_segment event with the stop position set to the last processed
- * position.
- *
- * After updating the segment.start/stop values, we prepare for
- * streaming again. We push out a FLUSH_STOP to make the peer pad
- * accept data again and we start our task again.
- *
- * A segment seek posts a message on the bus saying that the playback
- * of the segment started. We store the segment flag internally because
- * when we reach the segment.stop we have to post a segment.done
- * instead of EOS when doing a segment seek.
- */
-/* FIXME (0.11), we have the unlock gboolean here because most current
- * implementations (fdsrc, -base/gst/tcp/, ...) unconditionally unlock, even when
- * the streaming thread isn't running, resulting in bogus unlocks later when it
- * starts. This is fixed by adding unlock_stop, but we should still avoid unlocking
- * unnecessarily for backwards compatibility. Ergo, the unlock variable stays
- * until 0.11
- */
-static gboolean
-gst_base_src_perform_seek (RsnBaseSrc * src, GstEvent * event, gboolean unlock)
-{
-  gboolean res = TRUE, tres;
-  gdouble rate;
-  GstFormat seek_format, dest_format;
-  GstSeekFlags flags;
-  GstSeekType cur_type, stop_type;
-  gint64 cur, stop;
-  gboolean flush, playing;
-  gboolean update;
-  gboolean relative_seek = FALSE;
-  gboolean seekseg_configured = FALSE;
-  GstSegment seeksegment;
-  guint32 seqnum;
-  GstEvent *tevent;
-
-  GST_DEBUG_OBJECT (src, "doing seek");
-
-  dest_format = src->segment.format;
-
-  if (event) {
-    gst_event_parse_seek (event, &rate, &seek_format, &flags,
-        &cur_type, &cur, &stop_type, &stop);
-
-    relative_seek = SEEK_TYPE_IS_RELATIVE (cur_type) ||
-        SEEK_TYPE_IS_RELATIVE (stop_type);
-
-    if (dest_format != seek_format && !relative_seek) {
-      /* If we have an ABSOLUTE position (SEEK_SET only), we can convert it
-       * here before taking the stream lock, otherwise we must convert it later,
-       * once we have the stream lock and can read the last configures segment
-       * start and stop positions */
-      gst_segment_init (&seeksegment, dest_format);
-
-      if (!gst_base_src_prepare_seek_segment (src, event, &seeksegment))
-        goto prepare_failed;
-
-      seekseg_configured = TRUE;
-    }
-
-    flush = flags & GST_SEEK_FLAG_FLUSH;
-    seqnum = gst_event_get_seqnum (event);
-  } else {
-    flush = FALSE;
-    /* get next seqnum */
-    seqnum = gst_util_seqnum_next ();
-  }
-
-  /* send flush start */
-  if (flush) {
-    tevent = gst_event_new_flush_start ();
-    gst_event_set_seqnum (tevent, seqnum);
-    gst_pad_push_event (src->srcpad, tevent);
-  } else
-    gst_pad_pause_task (src->srcpad);
-
-  /* unblock streaming thread. */
-  gst_base_src_set_flushing (src, TRUE, FALSE, unlock, &playing);
-
-  /* grab streaming lock, this should eventually be possible, either
-   * because the task is paused, our streaming thread stopped
-   * or because our peer is flushing. */
-  GST_PAD_STREAM_LOCK (src->srcpad);
-  if (G_UNLIKELY (src->priv->seqnum == seqnum)) {
-    /* we have seen this event before, issue a warning for now */
-    GST_WARNING_OBJECT (src, "duplicate event found %" G_GUINT32_FORMAT,
-        seqnum);
-  } else {
-    src->priv->seqnum = seqnum;
-    GST_DEBUG_OBJECT (src, "seek with seqnum %" G_GUINT32_FORMAT, seqnum);
-  }
-
-  gst_base_src_set_flushing (src, FALSE, playing, unlock, NULL);
-
-  /* If we configured the seeksegment above, don't overwrite it now. Otherwise
-   * copy the current segment info into the temp segment that we can actually
-   * attempt the seek with. We only update the real segment if the seek suceeds. */
-  if (!seekseg_configured) {
-    memcpy (&seeksegment, &src->segment, sizeof (GstSegment));
-
-    /* now configure the final seek segment */
-    if (event) {
-      if (src->segment.format != seek_format) {
-        /* OK, here's where we give the subclass a chance to convert the relative
-         * seek into an absolute one in the processing format. We set up any
-         * absolute seek above, before taking the stream lock. */
-        if (!gst_base_src_prepare_seek_segment (src, event, &seeksegment)) {
-          GST_DEBUG_OBJECT (src, "Preparing the seek failed after flushing. "
-              "Aborting seek");
-          res = FALSE;
-        }
-      } else {
-        /* The seek format matches our processing format, no need to ask the
-         * the subclass to configure the segment. */
-        gst_segment_set_seek (&seeksegment, rate, seek_format, flags,
-            cur_type, cur, stop_type, stop, &update);
-      }
-    }
-    /* Else, no seek event passed, so we're just (re)starting the
-       current segment. */
-  }
-
-  if (res) {
-    GST_DEBUG_OBJECT (src, "segment configured from %" G_GINT64_FORMAT
-        " to %" G_GINT64_FORMAT ", position %" G_GINT64_FORMAT,
-        seeksegment.start, seeksegment.stop, seeksegment.last_stop);
-
-    /* do the seek, segment.last_stop contains the new position. */
-    res = gst_base_src_do_seek (src, &seeksegment);
-  }
-
-  /* and prepare to continue streaming */
-  if (flush) {
-    tevent = gst_event_new_flush_stop ();
-    gst_event_set_seqnum (tevent, seqnum);
-    /* send flush stop, peer will accept data and events again. We
-     * are not yet providing data as we still have the STREAM_LOCK. */
-    gst_pad_push_event (src->srcpad, tevent);
-  } else if (res && src->data.ABI.running) {
-    /* we are running the current segment and doing a non-flushing seek,
-     * close the segment first based on the last_stop. */
-    GST_DEBUG_OBJECT (src, "closing running segment %" G_GINT64_FORMAT
-        " to %" G_GINT64_FORMAT, src->segment.start, src->segment.last_stop);
-
-    /* queue the segment for sending in the stream thread */
-    if (src->priv->close_segment)
-      gst_event_unref (src->priv->close_segment);
-    src->priv->close_segment =
-        gst_event_new_new_segment_full (TRUE,
-        src->segment.rate, src->segment.applied_rate, src->segment.format,
-        src->segment.start, src->segment.last_stop, src->segment.time);
-    gst_event_set_seqnum (src->priv->close_segment, seqnum);
-  }
-
-  /* The subclass must have converted the segment to the processing format
-   * by now */
-  if (res && seeksegment.format != dest_format) {
-    GST_DEBUG_OBJECT (src, "Subclass failed to prepare a seek segment "
-        "in the correct format. Aborting seek.");
-    res = FALSE;
-  }
-
-  /* if successfull seek, we update our real segment and push
-   * out the new segment. */
-  if (res) {
-    memcpy (&src->segment, &seeksegment, sizeof (GstSegment));
-
-    if (src->segment.flags & GST_SEEK_FLAG_SEGMENT) {
-      GstMessage *message;
-
-      message = gst_message_new_segment_start (GST_OBJECT (src),
-          src->segment.format, src->segment.last_stop);
-      gst_message_set_seqnum (message, seqnum);
-
-      gst_element_post_message (GST_ELEMENT (src), message);
-    }
-
-    /* for deriving a stop position for the playback segment from the seek
-     * segment, we must take the duration when the stop is not set */
-    if ((stop = src->segment.stop) == -1)
-      stop = src->segment.duration;
-
-    GST_DEBUG_OBJECT (src, "Sending newsegment from %" G_GINT64_FORMAT
-        " to %" G_GINT64_FORMAT, src->segment.start, stop);
-
-    /* now replace the old segment so that we send it in the stream thread the
-     * next time it is scheduled. */
-    if (src->priv->start_segment)
-      gst_event_unref (src->priv->start_segment);
-    if (src->segment.rate >= 0.0) {
-      /* forward, we send data from last_stop to stop */
-      src->priv->start_segment =
-          gst_event_new_new_segment_full (FALSE,
-          src->segment.rate, src->segment.applied_rate, src->segment.format,
-          src->segment.last_stop, stop, src->segment.time);
-    } else {
-      /* reverse, we send data from last_stop to start */
-      src->priv->start_segment =
-          gst_event_new_new_segment_full (FALSE,
-          src->segment.rate, src->segment.applied_rate, src->segment.format,
-          src->segment.start, src->segment.last_stop, src->segment.time);
-    }
-    gst_event_set_seqnum (src->priv->start_segment, seqnum);
-  }
-
-  src->priv->discont = TRUE;
-  src->data.ABI.running = TRUE;
-  /* and restart the task in case it got paused explicitely or by
-   * the FLUSH_START event we pushed out. */
-  tres = gst_pad_start_task (src->srcpad, (GstTaskFunction) gst_base_src_loop,
-      src->srcpad);
-  if (res && !tres)
-    res = FALSE;
-
-  /* and release the lock again so we can continue streaming */
-  GST_PAD_STREAM_UNLOCK (src->srcpad);
-
-  return res;
-
-  /* ERROR */
-prepare_failed:
-  GST_DEBUG_OBJECT (src, "Preparing the seek failed before flushing. "
-      "Aborting seek");
-  return FALSE;
-}
-
-static const GstQueryType *
-gst_base_src_get_query_types (GstElement * element)
-{
-  static const GstQueryType query_types[] = {
-    GST_QUERY_DURATION,
-    GST_QUERY_POSITION,
-    GST_QUERY_SEEKING,
-    GST_QUERY_SEGMENT,
-    GST_QUERY_FORMATS,
-    GST_QUERY_LATENCY,
-    GST_QUERY_JITTER,
-    GST_QUERY_RATE,
-    GST_QUERY_CONVERT,
-    0
-  };
-
-  return query_types;
-}
-
-/* all events send to this element directly. This is mainly done from the
- * application.
- */
-static gboolean
-gst_base_src_send_event (GstElement * element, GstEvent * event)
-{
-  RsnBaseSrc *src;
-  gboolean result = FALSE;
-
-  src = RSN_BASE_SRC (element);
-
-  GST_DEBUG_OBJECT (src, "reveived %s event", GST_EVENT_TYPE_NAME (event));
-
-  switch (GST_EVENT_TYPE (event)) {
-      /* bidirectional events */
-    case GST_EVENT_FLUSH_START:
-    case GST_EVENT_FLUSH_STOP:
-      /* sending random flushes downstream can break stuff,
-       * especially sync since all segment info will get flushed */
-      break;
-
-      /* downstream serialized events */
-    case GST_EVENT_EOS:
-    {
-      RsnBaseSrcClass *bclass;
-
-      bclass = RSN_BASE_SRC_GET_CLASS (src);
-
-      /* queue EOS and make sure the task or pull function performs the EOS
-       * actions.
-       *
-       * We have two possibilities:
-       *
-       *  - Before we are to enter the _create function, we check the pending_eos
-       *    first and do EOS instead of entering it.
-       *  - If we are in the _create function or we did not manage to set the
-       *    flag fast enough and we are about to enter the _create function,
-       *    we unlock it so that we exit with WRONG_STATE immediatly. We then
-       *    check the EOS flag and do the EOS logic.
-       */
-      g_atomic_int_set (&src->priv->pending_eos, TRUE);
-      GST_DEBUG_OBJECT (src, "EOS marked, calling unlock");
-
-      /* unlock the _create function so that we can check the pending_eos flag
-       * and we can do EOS. This will eventually release the LIVE_LOCK again so
-       * that we can grab it and stop the unlock again. We don't take the stream
-       * lock so that this operation is guaranteed to never block. */
-      if (bclass->unlock)
-        bclass->unlock (src);
-
-      GST_DEBUG_OBJECT (src, "unlock called, waiting for LIVE_LOCK");
-
-      GST_LIVE_LOCK (src);
-      GST_DEBUG_OBJECT (src, "LIVE_LOCK acquired, calling unlock_stop");
-      /* now stop the unlock of the streaming thread again. Grabbing the live
-       * lock is enough because that protects the create function. */
-      if (bclass->unlock_stop)
-        bclass->unlock_stop (src);
-      GST_LIVE_UNLOCK (src);
-
-      result = TRUE;
-      break;
-    }
-    case GST_EVENT_NEWSEGMENT:
-      /* sending random NEWSEGMENT downstream can break sync. */
-      break;
-    case GST_EVENT_TAG:
-      /* Insert tag in the dataflow */
-      GST_OBJECT_LOCK (src);
-      src->priv->pending_tags = g_list_append (src->priv->pending_tags, event);
-      GST_OBJECT_UNLOCK (src);
-      event = NULL;
-      result = TRUE;
-      break;
-    case GST_EVENT_BUFFERSIZE:
-      /* does not seem to make much sense currently */
-      break;
-
-      /* upstream events */
-    case GST_EVENT_QOS:
-      /* elements should override send_event and do something */
-      break;
-    case GST_EVENT_SEEK:
-    {
-      gboolean started;
-
-      GST_OBJECT_LOCK (src->srcpad);
-      if (GST_PAD_ACTIVATE_MODE (src->srcpad) == GST_ACTIVATE_PULL)
-        goto wrong_mode;
-      started = GST_PAD_ACTIVATE_MODE (src->srcpad) == GST_ACTIVATE_PUSH;
-      GST_OBJECT_UNLOCK (src->srcpad);
-
-      if (started) {
-        GST_DEBUG_OBJECT (src, "performing seek");
-        /* when we are running in push mode, we can execute the
-         * seek right now, we need to unlock. */
-        result = gst_base_src_perform_seek (src, event, TRUE);
-      } else {
-        GstEvent **event_p;
-
-        /* else we store the event and execute the seek when we
-         * get activated */
-        GST_OBJECT_LOCK (src);
-        GST_DEBUG_OBJECT (src, "queueing seek");
-        event_p = &src->data.ABI.pending_seek;
-        gst_event_replace ((GstEvent **) event_p, event);
-        GST_OBJECT_UNLOCK (src);
-        /* assume the seek will work */
-        result = TRUE;
-      }
-      break;
-    }
-    case GST_EVENT_NAVIGATION:
-      /* could make sense for elements that do something with navigation events
-       * but then they would need to override the send_event function */
-      break;
-    case GST_EVENT_LATENCY:
-      /* does not seem to make sense currently */
-      break;
-
-      /* custom events */
-    case GST_EVENT_CUSTOM_UPSTREAM:
-      /* override send_event if you want this */
-      break;
-    case GST_EVENT_CUSTOM_DOWNSTREAM:
-    case GST_EVENT_CUSTOM_BOTH:
-      /* FIXME, insert event in the dataflow */
-      break;
-    case GST_EVENT_CUSTOM_DOWNSTREAM_OOB:
-    case GST_EVENT_CUSTOM_BOTH_OOB:
-      /* insert a random custom event into the pipeline */
-      GST_DEBUG_OBJECT (src, "pushing custom OOB event downstream");
-      result = gst_pad_push_event (src->srcpad, event);
-      /* we gave away the ref to the event in the push */
-      event = NULL;
-      break;
-    default:
-      break;
-  }
-done:
-  /* if we still have a ref to the event, unref it now */
-  if (event)
-    gst_event_unref (event);
-
-  return result;
-
-  /* ERRORS */
-wrong_mode:
-  {
-    GST_DEBUG_OBJECT (src, "cannot perform seek when operating in pull mode");
-    GST_OBJECT_UNLOCK (src->srcpad);
-    result = FALSE;
-    goto done;
-  }
-}
-
-static gboolean
-gst_base_src_seekable (RsnBaseSrc * src)
-{
-  RsnBaseSrcClass *bclass;
-  bclass = RSN_BASE_SRC_GET_CLASS (src);
-  if (bclass->is_seekable)
-    return bclass->is_seekable (src);
-  else
-    return FALSE;
-}
-
-static gboolean
-gst_base_src_default_event (RsnBaseSrc * src, GstEvent * event)
-{
-  gboolean result;
-
-  switch (GST_EVENT_TYPE (event)) {
-    case GST_EVENT_SEEK:
-      /* is normally called when in push mode */
-      if (!gst_base_src_seekable (src))
-        goto not_seekable;
-
-      result = gst_base_src_perform_seek (src, event, TRUE);
-      break;
-    case GST_EVENT_FLUSH_START:
-      /* cancel any blocking getrange, is normally called
-       * when in pull mode. */
-      result = gst_base_src_set_flushing (src, TRUE, FALSE, TRUE, NULL);
-      break;
-    case GST_EVENT_FLUSH_STOP:
-      result = gst_base_src_set_flushing (src, FALSE, TRUE, TRUE, NULL);
-      break;
-    default:
-      result = TRUE;
-      break;
-  }
-  return result;
-
-  /* ERRORS */
-not_seekable:
-  {
-    GST_DEBUG_OBJECT (src, "is not seekable");
-    return FALSE;
-  }
-}
-
-static gboolean
-gst_base_src_event_handler (GstPad * pad, GstEvent * event)
-{
-  RsnBaseSrc *src;
-  RsnBaseSrcClass *bclass;
-  gboolean result = FALSE;
-
-  src = RSN_BASE_SRC (gst_pad_get_parent (pad));
-  bclass = RSN_BASE_SRC_GET_CLASS (src);
-
-  if (bclass->event) {
-    if (!(result = bclass->event (src, event)))
-      goto subclass_failed;
-  }
-
-done:
-  gst_event_unref (event);
-  gst_object_unref (src);
-
-  return result;
-
-  /* ERRORS */
-subclass_failed:
-  {
-    GST_DEBUG_OBJECT (src, "subclass refused event");
-    goto done;
-  }
-}
-
-static void
-gst_base_src_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec)
-{
-  RsnBaseSrc *src;
-
-  src = RSN_BASE_SRC (object);
-
-  switch (prop_id) {
-    case PROP_BLOCKSIZE:
-      gst_base_src_set_blocksize (src, g_value_get_ulong (value));
-      break;
-    case PROP_NUM_BUFFERS:
-      src->num_buffers = g_value_get_int (value);
-      break;
-    case PROP_TYPEFIND:
-      src->data.ABI.typefind = g_value_get_boolean (value);
-      break;
-    case PROP_DO_TIMESTAMP:
-      gst_base_src_set_do_timestamp (src, g_value_get_boolean (value));
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_base_src_get_property (GObject * object, guint prop_id, GValue * value,
-    GParamSpec * pspec)
-{
-  RsnBaseSrc *src;
-
-  src = RSN_BASE_SRC (object);
-
-  switch (prop_id) {
-    case PROP_BLOCKSIZE:
-      g_value_set_ulong (value, gst_base_src_get_blocksize (src));
-      break;
-    case PROP_NUM_BUFFERS:
-      g_value_set_int (value, src->num_buffers);
-      break;
-    case PROP_TYPEFIND:
-      g_value_set_boolean (value, src->data.ABI.typefind);
-      break;
-    case PROP_DO_TIMESTAMP:
-      g_value_set_boolean (value, gst_base_src_get_do_timestamp (src));
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-/* with STREAM_LOCK and LOCK */
-static GstClockReturn
-gst_base_src_wait (RsnBaseSrc * basesrc, GstClock * clock, GstClockTime time)
-{
-  GstClockReturn ret;
-  GstClockID id;
-
-  id = gst_clock_new_single_shot_id (clock, time);
-
-  basesrc->clock_id = id;
-  /* release the live lock while waiting */
-  GST_LIVE_UNLOCK (basesrc);
-
-  ret = gst_clock_id_wait (id, NULL);
-
-  GST_LIVE_LOCK (basesrc);
-  gst_clock_id_unref (id);
-  basesrc->clock_id = NULL;
-
-  return ret;
-}
-
-/* perform synchronisation on a buffer.
- * with STREAM_LOCK.
- */
-static GstClockReturn
-gst_base_src_do_sync (RsnBaseSrc * basesrc, GstBuffer * buffer)
-{
-  GstClockReturn result;
-  GstClockTime start, end;
-  RsnBaseSrcClass *bclass;
-  GstClockTime base_time;
-  GstClock *clock;
-  GstClockTime now = GST_CLOCK_TIME_NONE, timestamp;
-  gboolean do_timestamp, first, pseudo_live;
-
-  bclass = RSN_BASE_SRC_GET_CLASS (basesrc);
-
-  start = end = -1;
-  if (bclass->get_times)
-    bclass->get_times (basesrc, buffer, &start, &end);
-
-  /* get buffer timestamp */
-  timestamp = GST_BUFFER_TIMESTAMP (buffer);
-
-  /* grab the lock to prepare for clocking and calculate the startup
-   * latency. */
-  GST_OBJECT_LOCK (basesrc);
-
-  /* if we are asked to sync against the clock we are a pseudo live element */
-  pseudo_live = (start != -1 && basesrc->is_live);
-  /* check for the first buffer */
-  first = (basesrc->priv->latency == -1);
-
-  if (timestamp != -1 && pseudo_live) {
-    GstClockTime latency;
-
-    /* we have a timestamp and a sync time, latency is the diff */
-    if (timestamp <= start)
-      latency = start - timestamp;
-    else
-      latency = 0;
-
-    if (first) {
-      GST_DEBUG_OBJECT (basesrc, "pseudo_live with latency %" GST_TIME_FORMAT,
-          GST_TIME_ARGS (latency));
-      /* first time we calculate latency, just configure */
-      basesrc->priv->latency = latency;
-    } else {
-      if (basesrc->priv->latency != latency) {
-        /* we have a new latency, FIXME post latency message */
-        basesrc->priv->latency = latency;
-        GST_DEBUG_OBJECT (basesrc, "latency changed to %" GST_TIME_FORMAT,
-            GST_TIME_ARGS (latency));
-      }
-    }
-  } else if (first) {
-    GST_DEBUG_OBJECT (basesrc, "no latency needed, live %d, sync %d",
-        basesrc->is_live, start != -1);
-    basesrc->priv->latency = 0;
-  }
-
-  /* get clock, if no clock, we can't sync or do timestamps */
-  if ((clock = GST_ELEMENT_CLOCK (basesrc)) == NULL)
-    goto no_clock;
-
-  base_time = GST_ELEMENT_CAST (basesrc)->base_time;
-
-  do_timestamp = basesrc->priv->do_timestamp;
-
-  /* first buffer, calculate the timestamp offset */
-  if (first) {
-    GstClockTime running_time;
-
-    now = gst_clock_get_time (clock);
-    running_time = now - base_time;
-
-    GST_LOG_OBJECT (basesrc,
-        "startup timestamp: %" GST_TIME_FORMAT ", running_time %"
-        GST_TIME_FORMAT, GST_TIME_ARGS (timestamp),
-        GST_TIME_ARGS (running_time));
-
-    if (pseudo_live && timestamp != -1) {
-      /* live source and we need to sync, add startup latency to all timestamps
-       * to get the real running_time. Live sources should always timestamp
-       * according to the current running time. */
-      basesrc->priv->ts_offset = GST_CLOCK_DIFF (timestamp, running_time);
-
-      GST_LOG_OBJECT (basesrc, "live with sync, ts_offset %" GST_TIME_FORMAT,
-          GST_TIME_ARGS (basesrc->priv->ts_offset));
-    } else {
-      basesrc->priv->ts_offset = 0;
-      GST_LOG_OBJECT (basesrc, "no timestamp offset needed");
-    }
-
-    if (!GST_CLOCK_TIME_IS_VALID (timestamp)) {
-      if (do_timestamp)
-        timestamp = running_time;
-      else
-        timestamp = 0;
-
-      GST_BUFFER_TIMESTAMP (buffer) = timestamp;
-
-      GST_LOG_OBJECT (basesrc, "created timestamp: %" GST_TIME_FORMAT,
-          GST_TIME_ARGS (timestamp));
-    }
-
-    /* add the timestamp offset we need for sync */
-    timestamp += basesrc->priv->ts_offset;
-  } else {
-    /* not the first buffer, the timestamp is the diff between the clock and
-     * base_time */
-    if (do_timestamp && !GST_CLOCK_TIME_IS_VALID (timestamp)) {
-      now = gst_clock_get_time (clock);
-
-      GST_BUFFER_TIMESTAMP (buffer) = now - base_time;
-
-      GST_LOG_OBJECT (basesrc, "created timestamp: %" GST_TIME_FORMAT,
-          GST_TIME_ARGS (now - base_time));
-    }
-  }
-
-  /* if we don't have a buffer timestamp, we don't sync */
-  if (!GST_CLOCK_TIME_IS_VALID (start))
-    goto no_sync;
-
-  if (basesrc->is_live && GST_CLOCK_TIME_IS_VALID (timestamp)) {
-    /* for pseudo live sources, add our ts_offset to the timestamp */
-    GST_BUFFER_TIMESTAMP (buffer) += basesrc->priv->ts_offset;
-    start += basesrc->priv->ts_offset;
-  }
-
-  GST_LOG_OBJECT (basesrc,
-      "waiting for clock, base time %" GST_TIME_FORMAT
-      ", stream_start %" GST_TIME_FORMAT,
-      GST_TIME_ARGS (base_time), GST_TIME_ARGS (start));
-  GST_OBJECT_UNLOCK (basesrc);
-
-  result = gst_base_src_wait (basesrc, clock, start + base_time);
-
-  GST_LOG_OBJECT (basesrc, "clock entry done: %d", result);
-
-  return result;
-
-  /* special cases */
-no_clock:
-  {
-    GST_DEBUG_OBJECT (basesrc, "we have no clock");
-    GST_OBJECT_UNLOCK (basesrc);
-    return GST_CLOCK_OK;
-  }
-no_sync:
-  {
-    GST_DEBUG_OBJECT (basesrc, "no sync needed");
-    GST_OBJECT_UNLOCK (basesrc);
-    return GST_CLOCK_OK;
-  }
-}
-
-static gboolean
-gst_base_src_update_length (RsnBaseSrc * src, guint64 offset, guint * length)
-{
-  guint64 size, maxsize;
-  RsnBaseSrcClass *bclass;
-
-  bclass = RSN_BASE_SRC_GET_CLASS (src);
-
-  /* only operate if we are working with bytes */
-  if (src->segment.format != GST_FORMAT_BYTES)
-    return TRUE;
-
-  /* get total file size */
-  size = (guint64) src->segment.duration;
-
-  /* the max amount of bytes to read is the total size or
-   * up to the segment.stop if present. */
-  if (src->segment.stop != -1)
-    maxsize = MIN (size, src->segment.stop);
-  else
-    maxsize = size;
-
-  GST_DEBUG_OBJECT (src,
-      "reading offset %" G_GUINT64_FORMAT ", length %u, size %" G_GINT64_FORMAT
-      ", segment.stop %" G_GINT64_FORMAT ", maxsize %" G_GINT64_FORMAT, offset,
-      *length, size, src->segment.stop, maxsize);
-
-  /* check size if we have one */
-  if (maxsize != -1) {
-    /* if we run past the end, check if the file became bigger and
-     * retry. */
-    if (G_UNLIKELY (offset + *length >= maxsize)) {
-      /* see if length of the file changed */
-      if (bclass->get_size)
-        if (!bclass->get_size (src, &size))
-          size = -1;
-
-      gst_segment_set_duration (&src->segment, GST_FORMAT_BYTES, size);
-
-      /* make sure we don't exceed the configured segment stop
-       * if it was set */
-      if (src->segment.stop != -1)
-        maxsize = MIN (size, src->segment.stop);
-      else
-        maxsize = size;
-
-      /* if we are at or past the end, EOS */
-      if (G_UNLIKELY (offset >= maxsize))
-        goto unexpected_length;
-
-      /* else we can clip to the end */
-      if (G_UNLIKELY (offset + *length >= maxsize))
-        *length = maxsize - offset;
-
-    }
-  }
-
-  /* keep track of current position. segment is in bytes, we checked
-   * that above. */
-  gst_segment_set_last_stop (&src->segment, GST_FORMAT_BYTES, offset);
-
-  return TRUE;
-
-  /* ERRORS */
-unexpected_length:
-  {
-    return FALSE;
-  }
-}
-
-/* must be called with LIVE_LOCK */
-static GstFlowReturn
-gst_base_src_get_range (RsnBaseSrc * src, guint64 offset, guint length,
-    GstBuffer ** buf)
-{
-  GstFlowReturn ret;
-  RsnBaseSrcClass *bclass;
-  GstClockReturn status;
-
-  bclass = RSN_BASE_SRC_GET_CLASS (src);
-
-again:
-  if (src->is_live) {
-    while (G_UNLIKELY (!src->live_running)) {
-      ret = gst_base_src_wait_playing (src);
-      if (ret != GST_FLOW_OK)
-        goto stopped;
-    }
-  }
-
-  if (G_UNLIKELY (!GST_OBJECT_FLAG_IS_SET (src, RSN_BASE_SRC_STARTED)))
-    goto not_started;
-
-  if (G_UNLIKELY (!bclass->create))
-    goto no_function;
-
-  if (G_UNLIKELY (!gst_base_src_update_length (src, offset, &length)))
-    goto unexpected_length;
-
-  /* normally we don't count buffers */
-  if (G_UNLIKELY (src->num_buffers_left >= 0)) {
-    if (src->num_buffers_left == 0)
-      goto reached_num_buffers;
-    else
-      src->num_buffers_left--;
-  }
-
-  /* don't enter the create function if a pending EOS event was set. For the
-   * logic of the pending_eos, check the event function of this class. */
-  if (G_UNLIKELY (g_atomic_int_get (&src->priv->pending_eos)))
-    goto eos;
-
-  GST_DEBUG_OBJECT (src,
-      "calling create offset %" G_GUINT64_FORMAT " length %u, time %"
-      G_GINT64_FORMAT, offset, length, src->segment.time);
-
-  ret = bclass->create (src, offset, length, buf);
-
-  /* The create function could be unlocked because we have a pending EOS. It's
-   * possible that we have a valid buffer from create that we need to
-   * discard when the create function returned _OK. */
-  if (G_UNLIKELY (g_atomic_int_get (&src->priv->pending_eos))) {
-    if (ret == GST_FLOW_OK) {
-      gst_buffer_unref (*buf);
-      *buf = NULL;
-    }
-    goto eos;
-  }
-
-  if (G_UNLIKELY (ret != GST_FLOW_OK))
-    goto not_ok;
-
-  /* no timestamp set and we are at offset 0, we can timestamp with 0 */
-  if (offset == 0 && src->segment.time == 0
-      && GST_BUFFER_TIMESTAMP (*buf) == -1)
-    GST_BUFFER_TIMESTAMP (*buf) = 0;
-
-  /* set pad caps on the buffer if the buffer had no caps */
-  if (GST_BUFFER_CAPS (*buf) == NULL)
-    gst_buffer_set_caps (*buf, GST_PAD_CAPS (src->srcpad));
-
-  /* now sync before pushing the buffer */
-  status = gst_base_src_do_sync (src, *buf);
-
-  /* waiting for the clock could have made us flushing */
-  if (G_UNLIKELY (src->priv->flushing))
-    goto flushing;
-
-  switch (status) {
-    case GST_CLOCK_EARLY:
-      /* the buffer is too late. We currently don't drop the buffer. */
-      GST_DEBUG_OBJECT (src, "buffer too late!, returning anyway");
-      break;
-    case GST_CLOCK_OK:
-      /* buffer synchronised properly */
-      GST_DEBUG_OBJECT (src, "buffer ok");
-      break;
-    case GST_CLOCK_UNSCHEDULED:
-      /* this case is triggered when we were waiting for the clock and
-       * it got unlocked because we did a state change. In any case, get rid of
-       * the buffer. */
-      gst_buffer_unref (*buf);
-      *buf = NULL;
-      if (!src->live_running) {
-        /* We return WRONG_STATE when we are not running to stop the dataflow also
-         * get rid of the produced buffer. */
-        GST_DEBUG_OBJECT (src,
-            "clock was unscheduled (%d), returning WRONG_STATE", status);
-        ret = GST_FLOW_WRONG_STATE;
-      } else {
-        /* If we are running when this happens, we quickly switched between
-         * pause and playing. We try to produce a new buffer */
-        GST_DEBUG_OBJECT (src,
-            "clock was unscheduled (%d), but we are running", status);
-        goto again;
-      }
-      break;
-    default:
-      /* all other result values are unexpected and errors */
-      GST_ELEMENT_ERROR (src, CORE, CLOCK,
-          (_("Internal clock error.")),
-          ("clock returned unexpected return value %d", status));
-      gst_buffer_unref (*buf);
-      *buf = NULL;
-      ret = GST_FLOW_ERROR;
-      break;
-  }
-  return ret;
-
-  /* ERROR */
-stopped:
-  {
-    GST_DEBUG_OBJECT (src, "wait_playing returned %d (%s)", ret,
-        gst_flow_get_name (ret));
-    return ret;
-  }
-not_ok:
-  {
-    GST_DEBUG_OBJECT (src, "create returned %d (%s)", ret,
-        gst_flow_get_name (ret));
-    return ret;
-  }
-not_started:
-  {
-    GST_DEBUG_OBJECT (src, "getrange but not started");
-    return GST_FLOW_WRONG_STATE;
-  }
-no_function:
-  {
-    GST_DEBUG_OBJECT (src, "no create function");
-    return GST_FLOW_ERROR;
-  }
-unexpected_length:
-  {
-    GST_DEBUG_OBJECT (src, "unexpected length %u (offset=%" G_GUINT64_FORMAT
-        ", size=%" G_GINT64_FORMAT ")", length, offset, src->segment.duration);
-    return GST_FLOW_UNEXPECTED;
-  }
-reached_num_buffers:
-  {
-    GST_DEBUG_OBJECT (src, "sent all buffers");
-    return GST_FLOW_UNEXPECTED;
-  }
-flushing:
-  {
-    GST_DEBUG_OBJECT (src, "we are flushing");
-    gst_buffer_unref (*buf);
-    *buf = NULL;
-    return GST_FLOW_WRONG_STATE;
-  }
-eos:
-  {
-    GST_DEBUG_OBJECT (src, "we are EOS");
-    return GST_FLOW_UNEXPECTED;
-  }
-}
-
-static GstFlowReturn
-gst_base_src_pad_get_range (GstPad * pad, guint64 offset, guint length,
-    GstBuffer ** buf)
-{
-  RsnBaseSrc *src;
-  GstFlowReturn res;
-
-  src = RSN_BASE_SRC (gst_pad_get_parent (pad));
-
-  GST_LIVE_LOCK (src);
-  if (G_UNLIKELY (src->priv->flushing))
-    goto flushing;
-
-  res = gst_base_src_get_range (src, offset, length, buf);
-
-done:
-  GST_LIVE_UNLOCK (src);
-
-  gst_object_unref (src);
-
-  return res;
-
-  /* ERRORS */
-flushing:
-  {
-    GST_DEBUG_OBJECT (src, "we are flushing");
-    res = GST_FLOW_WRONG_STATE;
-    goto done;
-  }
-}
-
-static gboolean
-gst_base_src_default_check_get_range (RsnBaseSrc * src)
-{
-  gboolean res;
-
-  if (!GST_OBJECT_FLAG_IS_SET (src, RSN_BASE_SRC_STARTED)) {
-    GST_LOG_OBJECT (src, "doing start/stop to check get_range support");
-    if (G_LIKELY (gst_base_src_start (src)))
-      gst_base_src_stop (src);
-  }
-
-  /* we can operate in getrange mode if the native format is bytes
-   * and we are seekable, this condition is set in the random_access
-   * flag and is set in the _start() method. */
-  res = src->random_access;
-
-  return res;
-}
-
-static gboolean
-gst_base_src_check_get_range (RsnBaseSrc * src)
-{
-  RsnBaseSrcClass *bclass;
-  gboolean res;
-
-  bclass = RSN_BASE_SRC_GET_CLASS (src);
-
-  if (bclass->check_get_range == NULL)
-    goto no_function;
-
-  res = bclass->check_get_range (src);
-  GST_LOG_OBJECT (src, "%s() returned %d",
-      GST_DEBUG_FUNCPTR_NAME (bclass->check_get_range), (gint) res);
-
-  return res;
-
-  /* ERRORS */
-no_function:
-  {
-    GST_WARNING_OBJECT (src, "no check_get_range function set");
-    return FALSE;
-  }
-}
-
-static gboolean
-gst_base_src_pad_check_get_range (GstPad * pad)
-{
-  RsnBaseSrc *src;
-  gboolean res;
-
-  src = RSN_BASE_SRC (GST_OBJECT_PARENT (pad));
-
-  res = gst_base_src_check_get_range (src);
-
-  return res;
-}
-
-static void
-gst_base_src_loop (GstPad * pad)
-{
-  RsnBaseSrc *src;
-  GstBuffer *buf = NULL;
-  GstFlowReturn ret;
-  gint64 position;
-  gboolean eos;
-  gulong blocksize;
-  GList *tags, *tmp;
-
-  eos = FALSE;
-
-  src = RSN_BASE_SRC (GST_OBJECT_PARENT (pad));
-
-  GST_LIVE_LOCK (src);
-
-  if (G_UNLIKELY (src->priv->flushing))
-    goto flushing;
-
-  src->priv->last_sent_eos = FALSE;
-
-  blocksize = src->blocksize;
-
-  /* if we operate in bytes, we can calculate an offset */
-  if (src->segment.format == GST_FORMAT_BYTES) {
-    position = src->segment.last_stop;
-    /* for negative rates, start with subtracting the blocksize */
-    if (src->segment.rate < 0.0) {
-      /* we cannot go below segment.start */
-      if (position > src->segment.start + blocksize)
-        position -= blocksize;
-      else {
-        /* last block, remainder up to segment.start */
-        blocksize = position - src->segment.start;
-        position = src->segment.start;
-      }
-    }
-  } else
-    position = -1;
-
-  GST_LOG_OBJECT (src, "next_ts %" GST_TIME_FORMAT " size %lu",
-      GST_TIME_ARGS (position), blocksize);
-
-  ret = gst_base_src_get_range (src, position, blocksize, &buf);
-  if (G_UNLIKELY (ret != GST_FLOW_OK)) {
-    GST_INFO_OBJECT (src, "pausing after gst_base_src_get_range() = %s",
-        gst_flow_get_name (ret));
-    GST_LIVE_UNLOCK (src);
-    goto pause;
-  }
-  /* this should not happen */
-  if (G_UNLIKELY (buf == NULL))
-    goto null_buffer;
-
-  /* push events to close/start our segment before we push the buffer. */
-  if (G_UNLIKELY (src->priv->close_segment)) {
-    gst_pad_push_event (pad, src->priv->close_segment);
-    src->priv->close_segment = NULL;
-  }
-  if (G_UNLIKELY (src->priv->start_segment)) {
-    gst_pad_push_event (pad, src->priv->start_segment);
-    src->priv->start_segment = NULL;
-  }
-
-  GST_OBJECT_LOCK (src);
-  /* take the tags */
-  tags = src->priv->pending_tags;
-  src->priv->pending_tags = NULL;
-  GST_OBJECT_UNLOCK (src);
-
-  /* Push out pending tags if any */
-  if (G_UNLIKELY (tags != NULL)) {
-    for (tmp = tags; tmp; tmp = g_list_next (tmp)) {
-      GstEvent *ev = (GstEvent *) tmp->data;
-      gst_pad_push_event (pad, ev);
-    }
-    g_list_free (tags);
-  }
-
-  /* figure out the new position */
-  switch (src->segment.format) {
-    case GST_FORMAT_BYTES:
-    {
-      guint bufsize = GST_BUFFER_SIZE (buf);
-
-      /* we subtracted above for negative rates */
-      if (src->segment.rate >= 0.0)
-        position += bufsize;
-      break;
-    }
-    case GST_FORMAT_TIME:
-    {
-      GstClockTime start, duration;
-
-      start = GST_BUFFER_TIMESTAMP (buf);
-      duration = GST_BUFFER_DURATION (buf);
-
-      if (GST_CLOCK_TIME_IS_VALID (start))
-        position = start;
-      else
-        position = src->segment.last_stop;
-
-      if (GST_CLOCK_TIME_IS_VALID (duration)) {
-        if (src->segment.rate >= 0.0)
-          position += duration;
-        else if (position > duration)
-          position -= duration;
-        else
-          position = 0;
-      }
-      break;
-    }
-    case GST_FORMAT_DEFAULT:
-      if (src->segment.rate >= 0.0)
-        position = GST_BUFFER_OFFSET_END (buf);
-      else
-        position = GST_BUFFER_OFFSET (buf);
-      break;
-    default:
-      position = -1;
-      break;
-  }
-  if (position != -1) {
-    if (src->segment.rate >= 0.0) {
-      /* positive rate, check if we reached the stop */
-      if (src->segment.stop != -1) {
-        if (position >= src->segment.stop) {
-          eos = TRUE;
-          position = src->segment.stop;
-        }
-      }
-    } else {
-      /* negative rate, check if we reached the start. start is always set to
-       * something different from -1 */
-      if (position <= src->segment.start) {
-        eos = TRUE;
-        position = src->segment.start;
-      }
-      /* when going reverse, all buffers are DISCONT */
-      src->priv->discont = TRUE;
-    }
-    gst_segment_set_last_stop (&src->segment, src->segment.format, position);
-  }
-
-  if (G_UNLIKELY (src->priv->discont)) {
-    buf = gst_buffer_make_metadata_writable (buf);
-    GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
-    src->priv->discont = FALSE;
-  }
-  GST_LIVE_UNLOCK (src);
-
-  ret = gst_pad_push (pad, buf);
-  if (G_UNLIKELY (ret != GST_FLOW_OK)) {
-    GST_INFO_OBJECT (src, "pausing after gst_pad_push() = %s",
-        gst_flow_get_name (ret));
-    goto pause;
-  }
-
-  if (G_UNLIKELY (eos)) {
-    GST_INFO_OBJECT (src, "pausing after end of segment");
-    ret = GST_FLOW_UNEXPECTED;
-    goto pause;
-  }
-
-done:
-  return;
-
-  /* special cases */
-flushing:
-  {
-    GST_DEBUG_OBJECT (src, "we are flushing");
-    GST_LIVE_UNLOCK (src);
-    ret = GST_FLOW_WRONG_STATE;
-    goto pause;
-  }
-pause:
-  {
-    const gchar *reason = gst_flow_get_name (ret);
-    GstEvent *event;
-
-    GST_DEBUG_OBJECT (src, "pausing task, reason %s", reason);
-    src->data.ABI.running = FALSE;
-    gst_pad_pause_task (pad);
-    if (GST_FLOW_IS_FATAL (ret) || ret == GST_FLOW_NOT_LINKED) {
-      if (ret == GST_FLOW_UNEXPECTED) {
-        /* perform EOS logic */
-        if (src->segment.flags & GST_SEEK_FLAG_SEGMENT) {
-          GstMessage *message;
-
-          message = gst_message_new_segment_done (GST_OBJECT_CAST (src),
-              src->segment.format, src->segment.last_stop);
-          gst_message_set_seqnum (message, src->priv->seqnum);
-          gst_element_post_message (GST_ELEMENT_CAST (src), message);
-        } else {
-          event = gst_event_new_eos ();
-          gst_event_set_seqnum (event, src->priv->seqnum);
-          gst_pad_push_event (pad, event);
-          src->priv->last_sent_eos = TRUE;
-        }
-      } else {
-        event = gst_event_new_eos ();
-        gst_event_set_seqnum (event, src->priv->seqnum);
-        /* for fatal errors we post an error message, post the error
-         * first so the app knows about the error first. */
-        GST_ELEMENT_ERROR (src, STREAM, FAILED,
-            (_("Internal data flow error.")),
-            ("streaming task paused, reason %s (%d)", reason, ret));
-        gst_pad_push_event (pad, event);
-        src->priv->last_sent_eos = TRUE;
-      }
-    }
-    goto done;
-  }
-null_buffer:
-  {
-    GST_ELEMENT_ERROR (src, STREAM, FAILED,
-        (_("Internal data flow error.")), ("element returned NULL buffer"));
-    GST_LIVE_UNLOCK (src);
-    /* we finished the segment on error */
-    ret = GST_FLOW_ERROR;
-    goto done;
-  }
-}
-
-/* default negotiation code.
- *
- * Take intersection between src and sink pads, take first
- * caps and fixate.
- */
-static gboolean
-gst_base_src_default_negotiate (RsnBaseSrc * basesrc)
-{
-  GstCaps *thiscaps;
-  GstCaps *caps = NULL;
-  GstCaps *peercaps = NULL;
-  gboolean result = FALSE;
-
-  /* first see what is possible on our source pad */
-  thiscaps = gst_pad_get_caps (RSN_BASE_SRC_PAD (basesrc));
-  GST_DEBUG_OBJECT (basesrc, "caps of src: %" GST_PTR_FORMAT, thiscaps);
-  /* nothing or anything is allowed, we're done */
-  if (thiscaps == NULL || gst_caps_is_any (thiscaps))
-    goto no_nego_needed;
-
-  if (G_UNLIKELY (gst_caps_is_empty (thiscaps)))
-    goto no_caps;
-
-  /* get the peer caps */
-  peercaps = gst_pad_peer_get_caps (RSN_BASE_SRC_PAD (basesrc));
-  GST_DEBUG_OBJECT (basesrc, "caps of peer: %" GST_PTR_FORMAT, peercaps);
-  if (peercaps) {
-    GstCaps *icaps;
-
-    /* get intersection */
-    icaps = gst_caps_intersect (thiscaps, peercaps);
-    GST_DEBUG_OBJECT (basesrc, "intersect: %" GST_PTR_FORMAT, icaps);
-    gst_caps_unref (thiscaps);
-    gst_caps_unref (peercaps);
-    if (icaps) {
-      /* take first (and best, since they are sorted) possibility */
-      caps = gst_caps_copy_nth (icaps, 0);
-      gst_caps_unref (icaps);
-    }
-  } else {
-    /* no peer, work with our own caps then */
-    caps = thiscaps;
-  }
-  if (caps) {
-    caps = gst_caps_make_writable (caps);
-    gst_caps_truncate (caps);
-
-    /* now fixate */
-    if (!gst_caps_is_empty (caps)) {
-      gst_pad_fixate_caps (RSN_BASE_SRC_PAD (basesrc), caps);
-      GST_DEBUG_OBJECT (basesrc, "fixated to: %" GST_PTR_FORMAT, caps);
-
-      if (gst_caps_is_any (caps)) {
-        /* hmm, still anything, so element can do anything and
-         * nego is not needed */
-        result = TRUE;
-      } else if (gst_caps_is_fixed (caps)) {
-        /* yay, fixed caps, use those then, it's possible that the subclass does
-         * not accept this caps after all and we have to fail. */
-        result = gst_pad_set_caps (RSN_BASE_SRC_PAD (basesrc), caps);
-      }
-    }
-    gst_caps_unref (caps);
-  } else {
-    GST_DEBUG_OBJECT (basesrc, "no common caps");
-  }
-  return result;
-
-no_nego_needed:
-  {
-    GST_DEBUG_OBJECT (basesrc, "no negotiation needed");
-    if (thiscaps)
-      gst_caps_unref (thiscaps);
-    return TRUE;
-  }
-no_caps:
-  {
-    GST_ELEMENT_ERROR (basesrc, STREAM, FORMAT,
-        ("No supported formats found"),
-        ("This element did not produce valid caps"));
-    if (thiscaps)
-      gst_caps_unref (thiscaps);
-    return TRUE;
-  }
-}
-
-static gboolean
-gst_base_src_negotiate (RsnBaseSrc * basesrc)
-{
-  RsnBaseSrcClass *bclass;
-  gboolean result = TRUE;
-
-  bclass = RSN_BASE_SRC_GET_CLASS (basesrc);
-
-  if (bclass->negotiate)
-    result = bclass->negotiate (basesrc);
-
-  return result;
-}
-
-static gboolean
-gst_base_src_start (RsnBaseSrc * basesrc)
-{
-  RsnBaseSrcClass *bclass;
-  gboolean result;
-  guint64 size;
-  gboolean seekable;
-
-  if (GST_OBJECT_FLAG_IS_SET (basesrc, RSN_BASE_SRC_STARTED))
-    return TRUE;
-
-  GST_DEBUG_OBJECT (basesrc, "starting source");
-
-  basesrc->num_buffers_left = basesrc->num_buffers;
-
-  gst_segment_init (&basesrc->segment, basesrc->segment.format);
-  basesrc->data.ABI.running = FALSE;
-
-  bclass = RSN_BASE_SRC_GET_CLASS (basesrc);
-  if (bclass->start)
-    result = bclass->start (basesrc);
-  else
-    result = TRUE;
-
-  if (!result)
-    goto could_not_start;
-
-  GST_OBJECT_FLAG_SET (basesrc, RSN_BASE_SRC_STARTED);
-
-  /* figure out the size */
-  if (basesrc->segment.format == GST_FORMAT_BYTES) {
-    if (bclass->get_size) {
-      if (!(result = bclass->get_size (basesrc, &size)))
-        size = -1;
-    } else {
-      result = FALSE;
-      size = -1;
-    }
-    GST_DEBUG_OBJECT (basesrc, "setting size %" G_GUINT64_FORMAT, size);
-    /* only update the size when operating in bytes, subclass is supposed
-     * to set duration in the start method for other formats */
-    gst_segment_set_duration (&basesrc->segment, GST_FORMAT_BYTES, size);
-  } else {
-    size = -1;
-  }
-
-  GST_DEBUG_OBJECT (basesrc,
-      "format: %d, have size: %d, size: %" G_GUINT64_FORMAT ", duration: %"
-      G_GINT64_FORMAT, basesrc->segment.format, result, size,
-      basesrc->segment.duration);
-
-  seekable = gst_base_src_seekable (basesrc);
-  GST_DEBUG_OBJECT (basesrc, "is seekable: %d", seekable);
-
-  /* update for random access flag */
-  basesrc->random_access = seekable &&
-      basesrc->segment.format == GST_FORMAT_BYTES;
-
-  GST_DEBUG_OBJECT (basesrc, "is random_access: %d", basesrc->random_access);
-
-  /* run typefind if we are random_access and the typefinding is enabled. */
-  if (basesrc->random_access && basesrc->data.ABI.typefind && size != -1) {
-    GstCaps *caps;
-
-    if (!(caps = gst_type_find_helper (basesrc->srcpad, size)))
-      goto typefind_failed;
-
-    result = gst_pad_set_caps (basesrc->srcpad, caps);
-    gst_caps_unref (caps);
-  } else {
-    /* use class or default negotiate function */
-    if (!(result = gst_base_src_negotiate (basesrc)))
-      goto could_not_negotiate;
-  }
-
-  return result;
-
-  /* ERROR */
-could_not_start:
-  {
-    GST_DEBUG_OBJECT (basesrc, "could not start");
-    /* subclass is supposed to post a message. We don't have to call _stop. */
-    return FALSE;
-  }
-could_not_negotiate:
-  {
-    GST_DEBUG_OBJECT (basesrc, "could not negotiate, stopping");
-    GST_ELEMENT_ERROR (basesrc, STREAM, FORMAT,
-        ("Could not negotiate format"), ("Check your filtered caps, if any"));
-    /* we must call stop */
-    gst_base_src_stop (basesrc);
-    return FALSE;
-  }
-typefind_failed:
-  {
-    GST_DEBUG_OBJECT (basesrc, "could not typefind, stopping");
-    GST_ELEMENT_ERROR (basesrc, STREAM, TYPE_NOT_FOUND, (NULL), (NULL));
-    /* we must call stop */
-    gst_base_src_stop (basesrc);
-    return FALSE;
-  }
-}
-
-static gboolean
-gst_base_src_stop (RsnBaseSrc * basesrc)
-{
-  RsnBaseSrcClass *bclass;
-  gboolean result = TRUE;
-
-  if (!GST_OBJECT_FLAG_IS_SET (basesrc, RSN_BASE_SRC_STARTED))
-    return TRUE;
-
-  GST_DEBUG_OBJECT (basesrc, "stopping source");
-
-  bclass = RSN_BASE_SRC_GET_CLASS (basesrc);
-  if (bclass->stop)
-    result = bclass->stop (basesrc);
-
-  if (result)
-    GST_OBJECT_FLAG_UNSET (basesrc, RSN_BASE_SRC_STARTED);
-
-  return result;
-}
-
-/* start or stop flushing dataprocessing
- */
-static gboolean
-gst_base_src_set_flushing (RsnBaseSrc * basesrc,
-    gboolean flushing, gboolean live_play, gboolean unlock, gboolean * playing)
-{
-  RsnBaseSrcClass *bclass;
-
-  bclass = RSN_BASE_SRC_GET_CLASS (basesrc);
-
-  if (flushing && unlock) {
-    /* unlock any subclasses, we need to do this before grabbing the
-     * LIVE_LOCK since we hold this lock before going into ::create. We pass an
-     * unlock to the params because of backwards compat (see seek handler)*/
-    if (bclass->unlock)
-      bclass->unlock (basesrc);
-  }
-
-  /* the live lock is released when we are blocked, waiting for playing or
-   * when we sync to the clock. */
-  GST_LIVE_LOCK (basesrc);
-  if (playing)
-    *playing = basesrc->live_running;
-  basesrc->priv->flushing = flushing;
-  if (flushing) {
-    /* if we are locked in the live lock, signal it to make it flush */
-    basesrc->live_running = TRUE;
-
-    /* clear pending EOS if any */
-    g_atomic_int_set (&basesrc->priv->pending_eos, FALSE);
-
-    /* step 1, now that we have the LIVE lock, clear our unlock request */
-    if (bclass->unlock_stop)
-      bclass->unlock_stop (basesrc);
-
-    /* step 2, unblock clock sync (if any) or any other blocking thing */
-    if (basesrc->clock_id)
-      gst_clock_id_unschedule (basesrc->clock_id);
-  } else {
-    /* signal the live source that it can start playing */
-    basesrc->live_running = live_play;
-  }
-  GST_LIVE_SIGNAL (basesrc);
-  GST_LIVE_UNLOCK (basesrc);
-
-  return TRUE;
-}
-
-/* the purpose of this function is to make sure that a live source blocks in the
- * LIVE lock or leaves the LIVE lock and continues playing. */
-static gboolean
-gst_base_src_set_playing (RsnBaseSrc * basesrc, gboolean live_play)
-{
-  RsnBaseSrcClass *bclass;
-
-  bclass = RSN_BASE_SRC_GET_CLASS (basesrc);
-
-  /* unlock subclasses locked in ::create, we only do this when we stop playing. */
-  if (!live_play) {
-    GST_DEBUG_OBJECT (basesrc, "unlock");
-    if (bclass->unlock)
-      bclass->unlock (basesrc);
-  }
-
-  /* we are now able to grab the LIVE lock, when we get it, we can be
-   * waiting for PLAYING while blocked in the LIVE cond or we can be waiting
-   * for the clock. */
-  GST_LIVE_LOCK (basesrc);
-  GST_DEBUG_OBJECT (basesrc, "unschedule clock");
-
-  /* unblock clock sync (if any) */
-  if (basesrc->clock_id)
-    gst_clock_id_unschedule (basesrc->clock_id);
-
-  /* configure what to do when we get to the LIVE lock. */
-  GST_DEBUG_OBJECT (basesrc, "live running %d", live_play);
-  basesrc->live_running = live_play;
-
-  if (live_play) {
-    gboolean start;
-
-    /* clear our unlock request when going to PLAYING */
-    GST_DEBUG_OBJECT (basesrc, "unlock stop");
-    if (bclass->unlock_stop)
-      bclass->unlock_stop (basesrc);
-
-    /* for live sources we restart the timestamp correction */
-    basesrc->priv->latency = -1;
-    /* have to restart the task in case it stopped because of the unlock when
-     * we went to PAUSED. Only do this if we operating in push mode. */
-    GST_OBJECT_LOCK (basesrc->srcpad);
-    start = (GST_PAD_ACTIVATE_MODE (basesrc->srcpad) == GST_ACTIVATE_PUSH);
-    GST_OBJECT_UNLOCK (basesrc->srcpad);
-    if (start)
-      gst_pad_start_task (basesrc->srcpad, (GstTaskFunction) gst_base_src_loop,
-          basesrc->srcpad);
-    GST_DEBUG_OBJECT (basesrc, "signal");
-    GST_LIVE_SIGNAL (basesrc);
-  }
-  GST_LIVE_UNLOCK (basesrc);
-
-  return TRUE;
-}
-
-static gboolean
-gst_base_src_activate_push (GstPad * pad, gboolean active)
-{
-  RsnBaseSrc *basesrc;
-  GstEvent *event;
-
-  basesrc = RSN_BASE_SRC (GST_OBJECT_PARENT (pad));
-
-  /* prepare subclass first */
-  if (active) {
-    GST_DEBUG_OBJECT (basesrc, "Activating in push mode");
-
-    if (G_UNLIKELY (!basesrc->can_activate_push))
-      goto no_push_activation;
-
-    if (G_UNLIKELY (!gst_base_src_start (basesrc)))
-      goto error_start;
-
-    basesrc->priv->last_sent_eos = FALSE;
-    basesrc->priv->discont = TRUE;
-    gst_base_src_set_flushing (basesrc, FALSE, FALSE, FALSE, NULL);
-
-    /* do initial seek, which will start the task */
-    GST_OBJECT_LOCK (basesrc);
-    event = basesrc->data.ABI.pending_seek;
-    basesrc->data.ABI.pending_seek = NULL;
-    GST_OBJECT_UNLOCK (basesrc);
-
-    /* no need to unlock anything, the task is certainly
-     * not running here. The perform seek code will start the task when
-     * finished. */
-    if (G_UNLIKELY (!gst_base_src_perform_seek (basesrc, event, FALSE)))
-      goto seek_failed;
-
-    if (event)
-      gst_event_unref (event);
-  } else {
-    GST_DEBUG_OBJECT (basesrc, "Deactivating in push mode");
-    /* flush all */
-    gst_base_src_set_flushing (basesrc, TRUE, FALSE, TRUE, NULL);
-    /* stop the task */
-    gst_pad_stop_task (pad);
-    /* now we can stop the source */
-    if (G_UNLIKELY (!gst_base_src_stop (basesrc)))
-      goto error_stop;
-  }
-  return TRUE;
-
-  /* ERRORS */
-no_push_activation:
-  {
-    GST_WARNING_OBJECT (basesrc, "Subclass disabled push-mode activation");
-    return FALSE;
-  }
-error_start:
-  {
-    GST_WARNING_OBJECT (basesrc, "Failed to start in push mode");
-    return FALSE;
-  }
-seek_failed:
-  {
-    GST_ERROR_OBJECT (basesrc, "Failed to perform initial seek");
-    gst_base_src_stop (basesrc);
-    if (event)
-      gst_event_unref (event);
-    return FALSE;
-  }
-error_stop:
-  {
-    GST_DEBUG_OBJECT (basesrc, "Failed to stop in push mode");
-    return FALSE;
-  }
-}
-
-static gboolean
-gst_base_src_activate_pull (GstPad * pad, gboolean active)
-{
-  RsnBaseSrc *basesrc;
-
-  basesrc = RSN_BASE_SRC (GST_OBJECT_PARENT (pad));
-
-  /* prepare subclass first */
-  if (active) {
-    GST_DEBUG_OBJECT (basesrc, "Activating in pull mode");
-    if (G_UNLIKELY (!gst_base_src_start (basesrc)))
-      goto error_start;
-
-    /* if not random_access, we cannot operate in pull mode for now */
-    if (G_UNLIKELY (!gst_base_src_check_get_range (basesrc)))
-      goto no_get_range;
-
-    /* stop flushing now but for live sources, still block in the LIVE lock when
-     * we are not yet PLAYING */
-    gst_base_src_set_flushing (basesrc, FALSE, FALSE, FALSE, NULL);
-  } else {
-    GST_DEBUG_OBJECT (basesrc, "Deactivating in pull mode");
-    /* flush all, there is no task to stop */
-    gst_base_src_set_flushing (basesrc, TRUE, FALSE, TRUE, NULL);
-
-    /* don't send EOS when going from PAUSED => READY when in pull mode */
-    basesrc->priv->last_sent_eos = TRUE;
-
-    if (G_UNLIKELY (!gst_base_src_stop (basesrc)))
-      goto error_stop;
-  }
-  return TRUE;
-
-  /* ERRORS */
-error_start:
-  {
-    GST_ERROR_OBJECT (basesrc, "Failed to start in pull mode");
-    return FALSE;
-  }
-no_get_range:
-  {
-    GST_ERROR_OBJECT (basesrc, "Cannot operate in pull mode, stopping");
-    gst_base_src_stop (basesrc);
-    return FALSE;
-  }
-error_stop:
-  {
-    GST_ERROR_OBJECT (basesrc, "Failed to stop in pull mode");
-    return FALSE;
-  }
-}
-
-static GstStateChangeReturn
-gst_base_src_change_state (GstElement * element, GstStateChange transition)
-{
-  RsnBaseSrc *basesrc;
-  GstStateChangeReturn result;
-  gboolean no_preroll = FALSE;
-
-  basesrc = RSN_BASE_SRC (element);
-
-  switch (transition) {
-    case GST_STATE_CHANGE_NULL_TO_READY:
-      break;
-    case GST_STATE_CHANGE_READY_TO_PAUSED:
-      no_preroll = gst_base_src_is_live (basesrc);
-      break;
-    case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
-      GST_DEBUG_OBJECT (basesrc, "PAUSED->PLAYING");
-      if (gst_base_src_is_live (basesrc)) {
-        /* now we can start playback */
-        gst_base_src_set_playing (basesrc, TRUE);
-      }
-      break;
-    default:
-      break;
-  }
-
-  if ((result =
-          GST_ELEMENT_CLASS (parent_class)->change_state (element,
-              transition)) == GST_STATE_CHANGE_FAILURE)
-    goto failure;
-
-  switch (transition) {
-    case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
-      GST_DEBUG_OBJECT (basesrc, "PLAYING->PAUSED");
-      if (gst_base_src_is_live (basesrc)) {
-        /* make sure we block in the live lock in PAUSED */
-        gst_base_src_set_playing (basesrc, FALSE);
-        no_preroll = TRUE;
-      }
-      break;
-    case GST_STATE_CHANGE_PAUSED_TO_READY:
-    {
-      GstEvent **event_p, *event;
-
-      /* we don't need to unblock anything here, the pad deactivation code
-       * already did this */
-
-      /* FIXME, deprecate this behaviour, it is very dangerous.
-       * the prefered way of sending EOS downstream is by sending
-       * the EOS event to the element */
-      if (!basesrc->priv->last_sent_eos) {
-        GST_DEBUG_OBJECT (basesrc, "Sending EOS event");
-        event = gst_event_new_eos ();
-        gst_event_set_seqnum (event, basesrc->priv->seqnum);
-        gst_pad_push_event (basesrc->srcpad, event);
-        basesrc->priv->last_sent_eos = TRUE;
-      }
-      g_atomic_int_set (&basesrc->priv->pending_eos, FALSE);
-      event_p = &basesrc->data.ABI.pending_seek;
-      gst_event_replace (event_p, NULL);
-      event_p = &basesrc->priv->close_segment;
-      gst_event_replace (event_p, NULL);
-      event_p = &basesrc->priv->start_segment;
-      gst_event_replace (event_p, NULL);
-      break;
-    }
-    case GST_STATE_CHANGE_READY_TO_NULL:
-      break;
-    default:
-      break;
-  }
-
-  if (no_preroll && result == GST_STATE_CHANGE_SUCCESS)
-    result = GST_STATE_CHANGE_NO_PREROLL;
-
-  return result;
-
-  /* ERRORS */
-failure:
-  {
-    GST_DEBUG_OBJECT (basesrc, "parent failed state change");
-    return result;
-  }
-}
diff --git a/ext/resindvd/rsnbasesrc.h b/ext/resindvd/rsnbasesrc.h
deleted file mode 100644
index e7bd3fa56..000000000
--- a/ext/resindvd/rsnbasesrc.h
+++ /dev/null
@@ -1,260 +0,0 @@
-/* GStreamer
- * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
- *                    2000 Wim Taymans <wtay@chello.be>
- *                    2005 Wim Taymans <wim@fluendo.com>
- *
- * gstbasesrc.h:
- *
- * 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.
- */
-
-/*
- *
- *   This is a temporary copy of GstBaseSrc/GstPushSrc for the resin
- *   DVD components, to work around a deadlock with source elements that
- *   send seeks to themselves. 
- *
- */
-#ifndef __RSN_BASE_SRC_H__
-#define __RSN_BASE_SRC_H__
-
-#include <gst/gst.h>
-
-G_BEGIN_DECLS
-
-#define RSN_TYPE_BASE_SRC               (gst_base_src_get_type())
-#define RSN_BASE_SRC(obj)               (G_TYPE_CHECK_INSTANCE_CAST((obj),RSN_TYPE_BASE_SRC,RsnBaseSrc))
-#define RSN_BASE_SRC_CLASS(klass)       (G_TYPE_CHECK_CLASS_CAST((klass),RSN_TYPE_BASE_SRC,RsnBaseSrcClass))
-#define RSN_BASE_SRC_GET_CLASS(obj)     (G_TYPE_INSTANCE_GET_CLASS ((obj), RSN_TYPE_BASE_SRC, RsnBaseSrcClass))
-#define GST_IS_BASE_SRC(obj)            (G_TYPE_CHECK_INSTANCE_TYPE((obj),RSN_TYPE_BASE_SRC))
-#define GST_IS_BASE_SRC_CLASS(klass)    (G_TYPE_CHECK_CLASS_TYPE((klass),RSN_TYPE_BASE_SRC))
-#define RSN_BASE_SRC_CAST(obj)          ((RsnBaseSrc *)(obj))
-
-/**
- * RsnBaseSrcFlags:
- * @RSN_BASE_SRC_STARTED: has source been started
- * @RSN_BASE_SRC_FLAG_LAST: offset to define more flags
- *
- * The #GstElement flags that a basesrc element may have.
- */
-typedef enum {
-  RSN_BASE_SRC_STARTED           = (GST_ELEMENT_FLAG_LAST << 0),
-  /* padding */
-  RSN_BASE_SRC_FLAG_LAST         = (GST_ELEMENT_FLAG_LAST << 2)
-} RsnBaseSrcFlags;
-
-typedef struct _RsnBaseSrc RsnBaseSrc;
-typedef struct _RsnBaseSrcClass RsnBaseSrcClass;
-typedef struct _RsnBaseSrcPrivate RsnBaseSrcPrivate;
-
-/**
- * RSN_BASE_SRC_PAD:
- * @obj: base source instance
- *
- * Gives the pointer to the #GstPad object of the element.
- */
-#define RSN_BASE_SRC_PAD(obj)                 (RSN_BASE_SRC_CAST (obj)->srcpad)
-
-
-/**
- * RsnBaseSrc:
- * @element: the parent element.
- *
- * The opaque #RsnBaseSrc data structure.
- */
-struct _RsnBaseSrc {
-  GstElement     element;
-
-  /*< protected >*/
-  GstPad        *srcpad;
-
-  /* available to subclass implementations */
-  /* MT-protected (with LIVE_LOCK) */
-  GMutex        *live_lock;
-  GCond         *live_cond;
-  gboolean       is_live;
-  gboolean       live_running;
-
-  /* MT-protected (with LOCK) */
-  gint           blocksize;     /* size of buffers when operating push based */
-  gboolean       can_activate_push;     /* some scheduling properties */
-  GstActivateMode pad_mode;
-  gboolean       seekable; /* not used anymore */
-  gboolean       random_access;
-
-  GstClockID     clock_id;      /* for syncing */
-  GstClockTime   end_time;
-
-  /* MT-protected (with STREAM_LOCK) */
-  GstSegment     segment;
-  gboolean       need_newsegment;
-
-  guint64        offset;        /* current offset in the resource, unused */
-  guint64        size;          /* total size of the resource, unused */
-
-  gint           num_buffers;
-  gint           num_buffers_left;
-
-  /*< private >*/
-  union {
-    struct {
-      /* FIXME: those fields should be moved into the private struct */
-      gboolean  typefind;
-      gboolean  running;
-      GstEvent *pending_seek;
-    } ABI;
-    gpointer       _gst_reserved[GST_PADDING_LARGE-1];
-  } data;
-
-  RsnBaseSrcPrivate *priv;
-};
-
-/**
- * RsnBaseSrcClass:
- * @parent_class: Element parent class
- * @get_caps: Called to get the caps to report
- * @set_caps: Notify subclass of changed output caps
- * @negotiate: Negotiated the caps with the peer.
- * @newsegment: Generate and send a new_segment event (UNUSED)
- * @start: Start processing. Subclasses should open resources and prepare
- *    to produce data.
- * @stop: Stop processing. Subclasses should use this to close resources.
- * @get_times: Given a buffer, return the start and stop time when it
- *    should be pushed out. The base class will sync on the clock using
- *    these times.
- * @get_size: Return the total size of the resource, in the configured format.
- * @is_seekable: Check if the source can seek
- * @unlock: Unlock any pending access to the resource. Subclasses should
- *    unblock any blocked function ASAP
- * @unlock_stop: Clear the previous unlock request. Subclasses should clear
- *    any state they set during unlock(), such as clearing command queues.
- * @event: Override this to implement custom event handling.
- * @create: Ask the subclass to create a buffer with offset and size.
- * @do_seek: Perform seeking on the resource to the indicated segment.
- * @prepare_seek_segment: Prepare the GstSegment that will be passed to the
- *   do_seek vmethod for executing a seek request. Sub-classes should override
- *   this if they support seeking in formats other than the configured native
- *   format. By default, it tries to convert the seek arguments to the
- *   configured native format and prepare a segment in that format.
- *   Since: 0.10.13
- * @query: Handle a requested query.
- * @check_get_range: Check whether the source would support pull-based
- *   operation if it were to be opened now. This vfunc is optional, but
- *   should be implemented if possible to avoid unnecessary start/stop
- *   cycles. The default implementation will open and close the resource
- *   to find out whether get_range is supported, and that is usually
- *   undesirable.
- * @fixate: Called during negotiation if caps need fixating. Implement instead of
- *   setting a fixate function on the source pad.
- *
- * Subclasses can override any of the available virtual methods or not, as
- * needed. At the minimum, the @create method should be overridden to produce
- * buffers.
- */
-struct _RsnBaseSrcClass {
-  GstElementClass parent_class;
-
-  /*< public >*/
-  /* virtual methods for subclasses */
-
-  /* get caps from subclass */
-  GstCaps*      (*get_caps)     (RsnBaseSrc *src);
-  /* notify the subclass of new caps */
-  gboolean      (*set_caps)     (RsnBaseSrc *src, GstCaps *caps);
-
-  /* decide on caps */
-  gboolean      (*negotiate)    (RsnBaseSrc *src);
-
-  /* generate and send a newsegment (UNUSED) */
-  gboolean      (*newsegment)   (RsnBaseSrc *src);
-
-  /* start and stop processing, ideal for opening/closing the resource */
-  gboolean      (*start)        (RsnBaseSrc *src);
-  gboolean      (*stop)         (RsnBaseSrc *src);
-
-  /* given a buffer, return start and stop time when it should be pushed
-   * out. The base class will sync on the clock using these times. */
-  void          (*get_times)    (RsnBaseSrc *src, GstBuffer *buffer,
-                                 GstClockTime *start, GstClockTime *end);
-
-  /* get the total size of the resource in bytes */
-  gboolean      (*get_size)     (RsnBaseSrc *src, guint64 *size);
-
-  /* check if the resource is seekable */
-  gboolean      (*is_seekable)  (RsnBaseSrc *src);
-  /* unlock any pending access to the resource. subclasses should unlock
-   * any function ASAP. */
-  gboolean      (*unlock)       (RsnBaseSrc *src);
-
-  /* notify subclasses of an event */
-  gboolean      (*event)        (RsnBaseSrc *src, GstEvent *event);
-
-  /* ask the subclass to create a buffer with offset and size */
-  GstFlowReturn (*create)       (RsnBaseSrc *src, guint64 offset, guint size,
-                                 GstBuffer **buf);
-
-  /* additions that change padding... */
-  /* notify subclasses of a seek */
-  gboolean      (*do_seek)      (RsnBaseSrc *src, GstSegment *segment);
-  /* notify subclasses of a query */
-  gboolean      (*query)        (RsnBaseSrc *src, GstQuery *query);
-
-  /* check whether the source would support pull-based operation if
-   * it were to be opened now. This vfunc is optional, but should be
-   * implemented if possible to avoid unnecessary start/stop cycles.
-   * The default implementation will open and close the resource to
-   * find out whether get_range is supported and that is usually
-   * undesirable. */
-  gboolean      (*check_get_range) (RsnBaseSrc *src);
-
-  /* called if, in negotiation, caps need fixating */
-  void          (*fixate)       (RsnBaseSrc *src, GstCaps *caps);
-
-  /* Clear any pending unlock request, as we succeeded in unlocking */
-  gboolean      (*unlock_stop)  (RsnBaseSrc *src);
-
-  /* Prepare the segment on which to perform do_seek(), converting to the
-   * current basesrc format. */
-  gboolean      (*prepare_seek_segment) (RsnBaseSrc *src, GstEvent *seek,
-                                         GstSegment *segment);
-
-  /*< private >*/
-  gpointer       _gst_reserved[GST_PADDING_LARGE - 6];
-};
-
-GType gst_base_src_get_type (void);
-
-GstFlowReturn   gst_base_src_wait_playing     (RsnBaseSrc *src);
-
-void            gst_base_src_set_live         (RsnBaseSrc *src, gboolean live);
-gboolean        gst_base_src_is_live          (RsnBaseSrc *src);
-
-void            gst_base_src_set_format       (RsnBaseSrc *src, GstFormat format);
-
-gboolean        gst_base_src_query_latency    (RsnBaseSrc *src, gboolean * live,
-                                               GstClockTime * min_latency,
-                                               GstClockTime * max_latency);
-
-void            gst_base_src_set_blocksize    (RsnBaseSrc *src, gulong blocksize);
-gulong          gst_base_src_get_blocksize    (RsnBaseSrc *src);
-
-void            gst_base_src_set_do_timestamp (RsnBaseSrc *src, gboolean timestamp);
-gboolean        gst_base_src_get_do_timestamp (RsnBaseSrc *src);
-
-gboolean        gst_base_src_new_seamless_segment (RsnBaseSrc *src, gint64 start, gint64 stop, gint64 position);
-G_END_DECLS
-
-#endif /* __RSN_BASE_SRC_H__ */