funnel: Import funnel element from farsight2

diff --git a/plugins/elements/gstfunnel.c b/plugins/elements/gstfunnel.c
new file mode 100644 (file)
index 0000000..96d0871
--- /dev/null
+++ b/plugins/elements/gstfunnel.c
@@ -0,0 +1,435 @@
+/*
+ * Farsight2 - Farsight Funnel element
+ *
+ * Copyright 2007 Collabora Ltd.
+ *  @author: Olivier Crete <olivier.crete@collabora.co.uk>
+ * Copyright 2007 Nokia Corp.
+ *
+ * fs-funnel.c: Simple Funnel element
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+/**
+ * SECTION:element-fsfunnel
+ * @short_description: N-to-1 simple funnel
+ *
+ * Takes packets from various input sinks into one output source
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include "fs-funnel.h"
+
+GST_DEBUG_CATEGORY_STATIC (fs_funnel_debug);
+#define GST_CAT_DEFAULT fs_funnel_debug
+
+static const GstElementDetails fs_funnel_details =
+GST_ELEMENT_DETAILS ("Farsight Funnel pipe fitting",
+    "Generic",
+    "N-to-1 pipe fitting",
+    "Olivier Crete <olivier.crete@collabora.co.uk>");
+
+static GstStaticPadTemplate funnel_sink_template =
+GST_STATIC_PAD_TEMPLATE ("sink%d",
+    GST_PAD_SINK,
+    GST_PAD_REQUEST,
+    GST_STATIC_CAPS_ANY);
+
+static GstStaticPadTemplate funnel_src_template =
+GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS_ANY);
+
+
+static void
+_do_init (GType type)
+{
+  GST_DEBUG_CATEGORY_INIT (fs_funnel_debug, "fsfunnel", 0, "fsfunnel element");
+}
+
+GST_BOILERPLATE_FULL (FsFunnel, fs_funnel, GstElement, GST_TYPE_ELEMENT,
+    _do_init);
+
+
+
+static GstStateChangeReturn fs_funnel_change_state (GstElement * element,
+    GstStateChange transition);
+
+static GstPad *fs_funnel_request_new_pad (GstElement * element,
+    GstPadTemplate * templ, const gchar * name);
+static void fs_funnel_release_pad (GstElement * element, GstPad * pad);
+
+static GstFlowReturn fs_funnel_buffer_alloc (GstPad * pad, guint64 offset,
+    guint size, GstCaps * caps, GstBuffer ** buf);
+static GstFlowReturn fs_funnel_chain (GstPad * pad, GstBuffer * buffer);
+static gboolean fs_funnel_event (GstPad * pad, GstEvent * event);
+static gboolean fs_funnel_src_event (GstPad * pad, GstEvent * event);
+static GstCaps *fs_funnel_getcaps (GstPad * pad);
+
+
+typedef struct
+{
+  GstSegment segment;
+} FsFunnelPadPrivate;
+
+static void
+fs_funnel_base_init (gpointer g_class)
+{
+  GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
+
+  gst_element_class_set_details (gstelement_class, &fs_funnel_details);
+
+  gst_element_class_add_pad_template (gstelement_class,
+      gst_static_pad_template_get (&funnel_sink_template));
+  gst_element_class_add_pad_template (gstelement_class,
+      gst_static_pad_template_get (&funnel_src_template));
+}
+
+
+static void
+fs_funnel_dispose (GObject * object)
+{
+  GList *item;
+
+restart:
+  for (item = GST_ELEMENT_PADS (object); item; item = g_list_next (item)) {
+    GstPad *pad = GST_PAD (item->data);
+
+    if (GST_PAD_IS_SINK (pad)) {
+      gst_element_release_request_pad (GST_ELEMENT (object), pad);
+      goto restart;
+    }
+  }
+
+  G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+fs_funnel_class_init (FsFunnelClass * klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+  GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
+
+  gobject_class->dispose = GST_DEBUG_FUNCPTR (fs_funnel_dispose);
+
+  gstelement_class->request_new_pad =
+      GST_DEBUG_FUNCPTR (fs_funnel_request_new_pad);
+  gstelement_class->release_pad = GST_DEBUG_FUNCPTR (fs_funnel_release_pad);
+  gstelement_class->change_state = GST_DEBUG_FUNCPTR (fs_funnel_change_state);
+}
+
+static void
+fs_funnel_init (FsFunnel * funnel, FsFunnelClass * g_class)
+{
+  funnel->srcpad = gst_pad_new_from_static_template (&funnel_src_template,
+      "src");
+  gst_pad_set_event_function (funnel->srcpad, fs_funnel_src_event);
+  gst_pad_use_fixed_caps (funnel->srcpad);
+  gst_element_add_pad (GST_ELEMENT (funnel), funnel->srcpad);
+}
+
+static GstFlowReturn
+fs_funnel_buffer_alloc (GstPad * pad, guint64 offset, guint size,
+    GstCaps * caps, GstBuffer ** buf)
+{
+  FsFunnel *funnel = FS_FUNNEL (gst_pad_get_parent_element (pad));
+  GstFlowReturn ret = GST_FLOW_OK;
+
+  ret = gst_pad_alloc_buffer (funnel->srcpad, offset, size, caps, buf);
+
+  gst_object_unref (funnel);
+
+  return ret;
+}
+
+
+static GstPad *
+fs_funnel_request_new_pad (GstElement * element, GstPadTemplate * templ,
+    const gchar * name)
+{
+  GstPad *sinkpad;
+  FsFunnelPadPrivate *priv = g_slice_alloc0 (sizeof (FsFunnelPadPrivate));
+
+  GST_DEBUG_OBJECT (element, "requesting pad");
+
+  sinkpad = gst_pad_new_from_template (templ, name);
+
+  gst_pad_set_chain_function (sinkpad, GST_DEBUG_FUNCPTR (fs_funnel_chain));
+  gst_pad_set_event_function (sinkpad, GST_DEBUG_FUNCPTR (fs_funnel_event));
+  gst_pad_set_getcaps_function (sinkpad, GST_DEBUG_FUNCPTR (fs_funnel_getcaps));
+  gst_pad_set_bufferalloc_function (sinkpad,
+      GST_DEBUG_FUNCPTR (fs_funnel_buffer_alloc));
+
+  gst_segment_init (&priv->segment, GST_FORMAT_UNDEFINED);
+  gst_pad_set_element_private (sinkpad, priv);
+
+  gst_pad_set_active (sinkpad, TRUE);
+
+  gst_element_add_pad (element, sinkpad);
+
+  return sinkpad;
+}
+
+static void
+fs_funnel_release_pad (GstElement * element, GstPad * pad)
+{
+  FsFunnel *funnel = FS_FUNNEL (element);
+  FsFunnelPadPrivate *priv = gst_pad_get_element_private (pad);
+
+  GST_DEBUG_OBJECT (funnel, "releasing pad");
+
+  gst_pad_set_active (pad, FALSE);
+
+  if (priv)
+    g_slice_free1 (sizeof (FsFunnelPadPrivate), priv);
+
+  gst_element_remove_pad (GST_ELEMENT_CAST (funnel), pad);
+}
+
+static GstCaps *
+fs_funnel_getcaps (GstPad * pad)
+{
+  FsFunnel *funnel = FS_FUNNEL (gst_pad_get_parent (pad));
+  GstCaps *caps;
+
+  caps = gst_pad_peer_get_caps_reffed (funnel->srcpad);
+  if (caps == NULL)
+    caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
+
+  gst_object_unref (funnel);
+
+  return caps;
+}
+
+static GstFlowReturn
+fs_funnel_chain (GstPad * pad, GstBuffer * buffer)
+{
+  GstFlowReturn res;
+  FsFunnel *funnel = FS_FUNNEL (gst_pad_get_parent (pad));
+  FsFunnelPadPrivate *priv = gst_pad_get_element_private (pad);
+  GstEvent *event = NULL;
+  GstClockTime newts;
+  GstCaps *padcaps;
+
+  GST_DEBUG_OBJECT (funnel, "received buffer %p", buffer);
+
+  GST_OBJECT_LOCK (funnel);
+  if (priv->segment.format == GST_FORMAT_UNDEFINED) {
+    GST_WARNING_OBJECT (funnel, "Got buffer without segment,"
+        " setting segment [0,inf[");
+    gst_segment_set_newsegment_full (&priv->segment, FALSE, 1.0, 1.0,
+        GST_FORMAT_TIME, 0, -1, 0);
+  }
+
+  if (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (buffer)))
+    gst_segment_set_last_stop (&priv->segment, priv->segment.format,
+        GST_BUFFER_TIMESTAMP (buffer));
+
+  newts = gst_segment_to_running_time (&priv->segment,
+      priv->segment.format, GST_BUFFER_TIMESTAMP (buffer));
+  if (newts != GST_BUFFER_TIMESTAMP (buffer)) {
+    buffer = gst_buffer_make_metadata_writable (buffer);
+    GST_BUFFER_TIMESTAMP (buffer) = newts;
+  }
+
+  if (!funnel->has_segment) {
+    event = gst_event_new_new_segment_full (FALSE, 1.0, 1.0, GST_FORMAT_TIME,
+        0, -1, 0);
+    funnel->has_segment = TRUE;
+  }
+  GST_OBJECT_UNLOCK (funnel);
+
+  if (event) {
+    if (!gst_pad_push_event (funnel->srcpad, event))
+      GST_WARNING_OBJECT (funnel, "Could not push out newsegment event");
+  }
+
+
+  GST_OBJECT_LOCK (pad);
+  padcaps = GST_PAD_CAPS (funnel->srcpad);
+  GST_OBJECT_UNLOCK (pad);
+
+  if (GST_BUFFER_CAPS (buffer) && GST_BUFFER_CAPS (buffer) != padcaps) {
+    if (!gst_pad_set_caps (funnel->srcpad, GST_BUFFER_CAPS (buffer))) {
+      res = GST_FLOW_NOT_NEGOTIATED;
+      goto out;
+    }
+  }
+
+  res = gst_pad_push (funnel->srcpad, buffer);
+
+  GST_LOG_OBJECT (funnel, "handled buffer %s", gst_flow_get_name (res));
+
+out:
+  gst_object_unref (funnel);
+
+  return res;
+}
+
+static gboolean
+fs_funnel_event (GstPad * pad, GstEvent * event)
+{
+  FsFunnel *funnel = FS_FUNNEL (gst_pad_get_parent (pad));
+  FsFunnelPadPrivate *priv = gst_pad_get_element_private (pad);
+  gboolean forward = TRUE;
+  gboolean res = TRUE;
+
+  switch (GST_EVENT_TYPE (event)) {
+    case GST_EVENT_NEWSEGMENT:
+    {
+      gboolean update;
+      gdouble rate, arate;
+      GstFormat format;
+      gint64 start;
+      gint64 stop;
+      gint64 time;
+
+      gst_event_parse_new_segment_full (event, &update, &rate, &arate,
+          &format, &start, &stop, &time);
+
+
+      GST_OBJECT_LOCK (funnel);
+      gst_segment_set_newsegment_full (&priv->segment, update, rate, arate,
+          format, start, stop, time);
+      GST_OBJECT_UNLOCK (funnel);
+
+      forward = FALSE;
+      gst_event_unref (event);
+    }
+      break;
+    case GST_EVENT_FLUSH_STOP:
+    {
+      GST_OBJECT_LOCK (funnel);
+      gst_segment_init (&priv->segment, GST_FORMAT_UNDEFINED);
+      GST_OBJECT_UNLOCK (funnel);
+    }
+      break;
+    default:
+      break;
+  }
+
+
+  if (forward)
+    res = gst_pad_push_event (funnel->srcpad, event);
+
+  gst_object_unref (funnel);
+
+  return res;
+}
+
+static gboolean
+fs_funnel_src_event (GstPad * pad, GstEvent * event)
+{
+  GstElement *funnel;
+  GstIterator *iter;
+  GstPad *sinkpad;
+  gboolean result = FALSE;
+  gboolean done = FALSE;
+
+  funnel = gst_pad_get_parent_element (pad);
+  g_return_val_if_fail (funnel != NULL, FALSE);
+
+  iter = gst_element_iterate_sink_pads (funnel);
+
+  while (!done) {
+    switch (gst_iterator_next (iter, (gpointer) & sinkpad)) {
+      case GST_ITERATOR_OK:
+        gst_event_ref (event);
+        result |= gst_pad_push_event (sinkpad, event);
+        gst_object_unref (sinkpad);
+        break;
+      case GST_ITERATOR_RESYNC:
+        gst_iterator_resync (iter);
+        result = FALSE;
+        break;
+      case GST_ITERATOR_ERROR:
+        GST_WARNING_OBJECT (funnel, "Error iterating sinkpads");
+      case GST_ITERATOR_DONE:
+        done = TRUE;
+        break;
+    }
+  }
+  gst_iterator_free (iter);
+  gst_object_unref (funnel);
+  gst_event_unref (event);
+
+  return result;
+}
+
+static void
+reset_pad (gpointer data, gpointer user_data)
+{
+  GstPad *pad = data;
+  FsFunnelPadPrivate *priv = gst_pad_get_element_private (pad);
+
+  GST_OBJECT_LOCK (pad);
+  gst_segment_init (&priv->segment, GST_FORMAT_UNDEFINED);
+  GST_OBJECT_UNLOCK (pad);
+  gst_object_unref (pad);
+}
+
+static GstStateChangeReturn
+fs_funnel_change_state (GstElement * element, GstStateChange transition)
+{
+  FsFunnel *funnel = FS_FUNNEL (element);
+  GstStateChangeReturn ret;
+
+  switch (transition) {
+    case GST_STATE_CHANGE_READY_TO_PAUSED:
+    {
+      GstIterator *iter = gst_element_iterate_sink_pads (element);
+      GstIteratorResult res;
+
+      do {
+        res = gst_iterator_foreach (iter, reset_pad, NULL);
+      } while (res == GST_ITERATOR_RESYNC);
+
+      gst_iterator_free (iter);
+
+      if (res == GST_ITERATOR_ERROR)
+        return GST_STATE_CHANGE_FAILURE;
+
+      GST_OBJECT_LOCK (funnel);
+      funnel->has_segment = FALSE;
+      GST_OBJECT_UNLOCK (funnel);
+    }
+      break;
+    default:
+      break;
+  }
+
+  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+
+  return ret;
+}
+
+
+static gboolean
+plugin_init (GstPlugin * plugin)
+{
+  return gst_element_register (plugin, "fsfunnel",
+      GST_RANK_NONE, FS_TYPE_FUNNEL);
+}
+
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+    GST_VERSION_MINOR,
+    "fsfunnel",
+    "Farsight Funnel plugin",
+    plugin_init,
+    VERSION, "LGPL", "Farsight", "http://farsight.freedesktop.org/")

diff --git a/plugins/elements/gstfunnel.h b/plugins/elements/gstfunnel.h
new file mode 100644 (file)
index 0000000..c1d5094
--- /dev/null
+++ b/plugins/elements/gstfunnel.h
@@ -0,0 +1,69 @@
+/*
+ * Farsight2 - Farsight Funnel element
+ *
+ * Copyright 2007 Collabora Ltd.
+ *  @author: Olivier Crete <olivier.crete@collabora.co.uk>
+ * Copyright 2007 Nokia Corp.
+ *
+ * fs-funnel.h: Simple Funnel element
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+
+#ifndef __FS_FUNNEL_H__
+#define __FS_FUNNEL_H__
+
+#include <gst/gst.h>
+
+G_BEGIN_DECLS
+
+#define FS_TYPE_FUNNEL \
+  (fs_funnel_get_type ())
+#define FS_FUNNEL(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),FS_TYPE_FUNNEL,FsFunnel))
+#define FS_FUNNEL_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),FS_TYPE_FUNNEL,FsFunnelClass))
+#define FS_IS_FUNNEL(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),FS_TYPE_FUNNEL))
+#define FS_IS_FUNNEL_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),FS_TYPE_FUNNEL))
+
+typedef struct _FsFunnel          FsFunnel;
+typedef struct _FsFunnelClass     FsFunnelClass;
+
+/**
+ * FsFunnel:
+ *
+ * Opaque #FsFunnel data structure.
+ */
+struct _FsFunnel {
+  GstElement      element;
+
+  /*< private >*/
+  GstPad         *srcpad;
+
+  gboolean has_segment;
+};
+
+struct _FsFunnelClass {
+  GstElementClass parent_class;
+};
+
+GType   fs_funnel_get_type        (void);
+
+G_END_DECLS
+
+#endif /* __FS_FUNNEL_H__ */

diff --git a/tests/check/elements/funnel.c b/tests/check/elements/funnel.c
new file mode 100644 (file)
index 0000000..8da1c3b
--- /dev/null
+++ b/tests/check/elements/funnel.c
@@ -0,0 +1,185 @@
+/* Farsight 2 unit tests for the fsfunnel
+ *
+ * Copyright (C) 2008 Collabora, Nokia
+ * @author: Olivier Crete <olivier.crete@collabora.co.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+*/
+
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gst/check/gstcheck.h>
+
+struct TestData
+{
+  GstElement *funnel;
+  GstPad *funnelsrc, *funnelsink11, *funnelsink22;
+  GstPad *mysink, *mysrc1, *mysrc2;
+  GstCaps *mycaps;
+};
+
+static void
+setup_test_objects (struct TestData *td, GstPadChainFunction chain_func,
+    GstPadBufferAllocFunction alloc_func)
+{
+  td->mycaps = gst_caps_new_simple ("test/test", NULL);
+
+  td->funnel = gst_element_factory_make ("fsfunnel", NULL);
+
+  td->funnelsrc = gst_element_get_static_pad (td->funnel, "src");
+  fail_unless (td->funnelsrc != NULL);
+
+  td->funnelsink11 = gst_element_get_request_pad (td->funnel, "sink11");
+  fail_unless (td->funnelsink11 != NULL);
+  fail_unless (!strcmp (GST_OBJECT_NAME (td->funnelsink11), "sink11"));
+
+  td->funnelsink22 = gst_element_get_request_pad (td->funnel, "sink22");
+  fail_unless (td->funnelsink22 != NULL);
+  fail_unless (!strcmp (GST_OBJECT_NAME (td->funnelsink22), "sink22"));
+
+  fail_unless (gst_element_set_state (td->funnel, GST_STATE_PLAYING) ==
+      GST_STATE_CHANGE_SUCCESS);
+
+  td->mysink = gst_pad_new ("sink", GST_PAD_SINK);
+  gst_pad_set_chain_function (td->mysink, chain_func);
+  gst_pad_set_bufferalloc_function (td->mysink, alloc_func);
+  gst_pad_set_active (td->mysink, TRUE);
+  gst_pad_set_caps (td->mysink, td->mycaps);
+
+  td->mysrc1 = gst_pad_new ("src1", GST_PAD_SRC);
+  gst_pad_set_active (td->mysrc1, TRUE);
+  gst_pad_set_caps (td->mysrc1, td->mycaps);
+
+  td->mysrc2 = gst_pad_new ("src2", GST_PAD_SRC);
+  gst_pad_set_active (td->mysrc2, TRUE);
+  gst_pad_set_caps (td->mysrc2, td->mycaps);
+
+  fail_unless (GST_PAD_LINK_SUCCESSFUL (gst_pad_link (td->funnelsrc,
+              td->mysink)));
+
+  fail_unless (GST_PAD_LINK_SUCCESSFUL (gst_pad_link (td->mysrc1,
+              td->funnelsink11)));
+
+  fail_unless (GST_PAD_LINK_SUCCESSFUL (gst_pad_link (td->mysrc2,
+              td->funnelsink22)));
+
+}
+
+static void
+release_test_objects (struct TestData *td)
+{
+  gst_pad_set_active (td->mysink, FALSE);
+  gst_pad_set_active (td->mysrc1, FALSE);
+  gst_pad_set_active (td->mysrc1, FALSE);
+
+  gst_object_unref (td->mysink);
+  gst_object_unref (td->mysrc1);
+  gst_object_unref (td->mysrc2);
+
+  fail_unless (gst_element_set_state (td->funnel, GST_STATE_NULL) ==
+      GST_STATE_CHANGE_SUCCESS);
+
+  gst_object_unref (td->funnelsrc);
+  gst_object_unref (td->funnelsink11);
+  gst_element_release_request_pad (td->funnel, td->funnelsink11);
+  gst_object_unref (td->funnelsink22);
+  gst_element_release_request_pad (td->funnel, td->funnelsink22);
+
+  gst_caps_unref (td->mycaps);
+  gst_object_unref (td->funnel);
+}
+
+static gint bufcount = 0;
+static gint alloccount = 0;
+
+static GstFlowReturn
+chain_ok (GstPad * pad, GstBuffer * buffer)
+{
+  bufcount++;
+
+  gst_buffer_unref (buffer);
+
+  return GST_FLOW_OK;
+}
+
+static GstFlowReturn
+alloc_ok (GstPad * pad,
+    guint64 offset, guint size, GstCaps * caps, GstBuffer ** buffer)
+{
+  alloccount++;
+
+  fail_unless (buffer != NULL);
+  fail_unless (*buffer == NULL);
+
+  *buffer = gst_buffer_new_and_alloc (size);
+  gst_buffer_set_caps (*buffer, caps);
+  GST_BUFFER_OFFSET (*buffer) = offset;
+
+  return GST_FLOW_OK;
+}
+
+GST_START_TEST (test_funnel_simple)
+{
+  struct TestData td;
+  GstBuffer *buf1 = NULL;
+  GstBuffer *buf2 = NULL;
+
+  setup_test_objects (&td, chain_ok, alloc_ok);
+
+  bufcount = 0;
+  alloccount = 0;
+
+  fail_unless (gst_pad_push (td.mysrc1, gst_buffer_new ()) == GST_FLOW_OK);
+  fail_unless (gst_pad_push (td.mysrc2, gst_buffer_new ()) == GST_FLOW_OK);
+
+  fail_unless (bufcount == 2);
+
+  fail_unless (gst_pad_alloc_buffer (td.mysrc1, 0, 1024, td.mycaps,
+          &buf1) == GST_FLOW_OK);
+  fail_unless (gst_pad_alloc_buffer (td.mysrc2, 1024, 1024, td.mycaps,
+          &buf2) == GST_FLOW_OK);
+
+  fail_unless (alloccount == 2);
+
+  gst_buffer_unref (buf1);
+  gst_buffer_unref (buf2);
+
+  release_test_objects (&td);
+}
+
+GST_END_TEST;
+
+static Suite *
+funnel_suite (void)
+{
+  Suite *s = suite_create ("funnel");
+  TCase *tc_chain;
+  GLogLevelFlags fatal_mask;
+
+  fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
+  fatal_mask |= G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL;
+  g_log_set_always_fatal (fatal_mask);
+
+  tc_chain = tcase_create ("funnel simple");
+  tcase_add_test (tc_chain, test_funnel_simple);
+  suite_add_tcase (s, tc_chain);
+
+  return s;
+}
+
+GST_CHECK_MAIN (funnel);