fixed PartialPlayTest, added SwitcherTest

livesupport/modules/gstreamerElements/etc/Makefile.in

@@ -21,7 +21,7 @@
 #
 #
 #   Author   : $Author: maroy $
-#   Version  : $Revision: 1.1 $
+#   Version  : $Revision: 1.2 $
 #   Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/gstreamerElements/etc/Makefile.in,v $
 #
 #   @configure_input@
@@ -125,10 +125,12 @@ LDFLAGS  = @LDFLAGS@ ${GSTREAMER_LIBS} \
 ONESHOT_READER_LIB_OBJS = ${TMP_DIR}/oneshot-reader.o
 
 MINIMAL_AUDIO_SMIL_LIB_OBJS = ${TMP_DIR}/seek.o \
-                              ${TMP_DIR}/seek-pack.o\
+                              ${TMP_DIR}/util.o \
+                              ${TMP_DIR}/seek-pack.o \
                               ${TMP_DIR}/minimal-audio-smil.o
 
 PARTIAL_PLAY_LIB_OBJS = ${TMP_DIR}/seek.o \
+                        ${TMP_DIR}/util.o \
                         ${TMP_DIR}/seek-pack.o \
 						${TMP_DIR}/smil-util.o \
                         ${TMP_DIR}/partial-play.o
@@ -137,6 +139,7 @@ SWITCHER_LIB_OBJS = ${TMP_DIR}/smil-util.o \
                     ${TMP_DIR}/switcher.o
 
 TEST_RUNNER_OBJS = ${TMP_DIR}/TestRunner.o \
+                   ${TMP_DIR}/SwitcherTest.o \
                    ${TMP_DIR}/PartialPlayTest.o \
                    ${TMP_DIR}/OneshotReaderTest.o \
 				   ${TMP_DIR}/MinimalAudioSmilTest.o

livesupport/modules/gstreamerElements/src/PartialPlayTest.cxx

@@ -22,7 +22,7 @@
  
  
     Author   : $Author: maroy $
-    Version  : $Revision: 1.1 $
+    Version  : $Revision: 1.2 $
     Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/gstreamerElements/src/PartialPlayTest.cxx,v $
 
 ------------------------------------------------------------------------------*/
@@ -55,6 +55,16 @@ static const char *         testFile = "var/1minutecounter.mp3";
 
 /* ===============================================  local function prototypes */
 
+/**
+ *  Signal handler for the eos event of the switcher element.
+ *
+ *  @param element the element emitting the eos signal
+ *  @param userData pointer to the container bin of the switcher.
+ */
+static void
+eos_signal_handler(GstElement     * element,
+                   gpointer         userData);
+
 
 /* =============================================================  module code */
 
@@ -98,6 +108,7 @@ PartialPlayTest :: firstTest(void)
     /* set filename property on the file source */
     g_object_set(G_OBJECT(filter), "location", testFile, NULL);
     g_object_set(G_OBJECT(filter), "config", "3s;10s-17s", NULL);
+    g_signal_connect(filter, "eos", G_CALLBACK(eos_signal_handler), pipeline);
 
     gst_element_link(filter, sink);
 
@@ -107,13 +118,27 @@ PartialPlayTest :: firstTest(void)
     gst_element_set_state(sink, GST_STATE_READY);
     gst_element_set_state(pipeline, GST_STATE_PLAYING);
 
-    // TODO: actually run the test
+    while (gst_bin_iterate(GST_BIN(pipeline)));
-    //       unfortunately currently partialplay does get into EOS state
-    //       when needed
-    //while (gst_bin_iterate(GST_BIN(pipeline)));
 
     /* clean up nicely */
     gst_element_set_state(pipeline, GST_STATE_NULL);
     gst_object_unref(GST_OBJECT (pipeline));
 }
 
+
+/*------------------------------------------------------------------------------
+ *  eos signal handler for the switcher element
+ *----------------------------------------------------------------------------*/
+static void
+eos_signal_handler(GstElement     * element,
+                   gpointer         userData)
+{
+    GstElement    * container = GST_ELEMENT(userData);
+
+    g_return_if_fail(container != NULL);
+    g_return_if_fail(GST_IS_ELEMENT(container));
+
+    // set the container into eos state
+    gst_element_set_eos(container);
+}
+

livesupport/modules/gstreamerElements/src/SwitcherTest.cxx

@@ -0,0 +1,150 @@
+/*------------------------------------------------------------------------------
+
+    Copyright (c) 2004 Media Development Loan Fund
+ 
+    This file is part of the LiveSupport project.
+    http://livesupport.campware.org/
+    To report bugs, send an e-mail to bugs@campware.org
+ 
+    LiveSupport is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+  
+    LiveSupport 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 General Public License for more details.
+ 
+    You should have received a copy of the GNU General Public License
+    along with LiveSupport; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ 
+ 
+    Author   : $Author: maroy $
+    Version  : $Revision: 1.1 $
+    Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/gstreamerElements/src/SwitcherTest.cxx,v $
+
+------------------------------------------------------------------------------*/
+
+/* ============================================================ include files */
+
+#ifdef HAVE_CONFIG_H
+#include "configure.h"
+#endif
+
+#include <string>
+#include <iostream>
+
+#include <gst/gst.h>
+
+#include "SwitcherTest.h"
+
+
+using namespace LiveSupport::GstreamerElements;
+
+/* ===================================================  local data structures */
+
+
+/* ================================================  local constants & macros */
+
+CPPUNIT_TEST_SUITE_REGISTRATION(SwitcherTest);
+
+static const char *         testFile = "var/1minutecounter.mp3";
+
+
+/* ===============================================  local function prototypes */
+
+/**
+ *  Signal handler for the eos event of the switcher element.
+ *
+ *  @param element the element emitting the eos signal
+ *  @param userData pointer to the container bin of the switcher.
+ */
+static void
+eos_signal_handler(GstElement     * element,
+                   gpointer         userData);
+
+
+/* =============================================================  module code */
+
+/*------------------------------------------------------------------------------
+ *  Set up the test environment
+ *----------------------------------------------------------------------------*/
+void
+SwitcherTest :: setUp(void)                         throw ()
+{
+}
+
+
+/*------------------------------------------------------------------------------
+ *  Clean up the test environment
+ *----------------------------------------------------------------------------*/
+void
+SwitcherTest :: tearDown(void)                      throw ()
+{
+}
+
+
+/*------------------------------------------------------------------------------
+ *  A simple smoke test.
+ *----------------------------------------------------------------------------*/
+void
+SwitcherTest :: firstTest(void)
+                                                throw (CPPUNIT_NS::Exception)
+{
+    GstElement    * pipeline;
+    GstElement    * source;
+    GstElement    * decoder;
+    GstElement    * sw;
+    GstElement    * switcher;
+    GstElement    * sink;
+
+    /* initialize GStreamer */
+    gst_init(0, 0);
+
+    /* create elements */
+    pipeline = gst_pipeline_new("audio-player");
+    source   = gst_element_factory_make("filesrc", "source");
+    decoder  = gst_element_factory_make("mad", "decoder");
+    sw       = gst_element_factory_make("switch", "sw");
+    switcher = gst_element_factory_make("switcher", "switcher");
+    sink     = gst_element_factory_make("alsasink", "alsa-output");
+
+    /* set filename property on the file source */
+    g_object_set(G_OBJECT(source), "location", testFile, NULL);
+    g_object_set(G_OBJECT(switcher), "source-config", "0[3s]", NULL);
+    /* listen for the eos event on switcher, so the pipeline can be stopped */
+    g_signal_connect(switcher, "eos", G_CALLBACK(eos_signal_handler), pipeline);
+
+    gst_element_link_many(source, decoder, sw, switcher, sink, NULL);
+    gst_bin_add_many(GST_BIN(pipeline),
+                     source, decoder, sw, switcher, sink, NULL);
+
+    gst_element_set_state(sink, GST_STATE_READY);
+    gst_element_set_state(pipeline, GST_STATE_PLAYING);
+
+    while (gst_bin_iterate(GST_BIN(pipeline)));
+
+    /* clean up nicely */
+    gst_element_set_state(pipeline, GST_STATE_NULL);
+    gst_object_unref(GST_OBJECT (pipeline));
+}
+
+
+/*------------------------------------------------------------------------------
+ *  eos signal handler for the switcher element
+ *----------------------------------------------------------------------------*/
+static void
+eos_signal_handler(GstElement     * element,
+                   gpointer         userData)
+{
+    GstElement    * container = GST_ELEMENT(userData);
+
+    g_return_if_fail(container != NULL);
+    g_return_if_fail(GST_IS_ELEMENT(container));
+
+    // set the container into eos state
+    gst_element_set_eos(container);
+}
+

livesupport/modules/gstreamerElements/src/SwitcherTest.h

@@ -0,0 +1,106 @@
+/*------------------------------------------------------------------------------
+
+    Copyright (c) 2004 Media Development Loan Fund
+ 
+    This file is part of the LiveSupport project.
+    http://livesupport.campware.org/
+    To report bugs, send an e-mail to bugs@campware.org
+ 
+    LiveSupport is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+  
+    LiveSupport 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 General Public License for more details.
+ 
+    You should have received a copy of the GNU General Public License
+    along with LiveSupport; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ 
+ 
+    Author   : $Author: maroy $
+    Version  : $Revision: 1.1 $
+    Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/gstreamerElements/src/SwitcherTest.h,v $
+
+------------------------------------------------------------------------------*/
+#ifndef SwitcherTest_h
+#define SwitcherTest_h
+
+#ifndef __cplusplus
+#error This is a C++ include file
+#endif
+
+
+/* ============================================================ include files */
+
+#ifdef HAVE_CONFIG_H
+#include "configure.h"
+#endif
+
+#include <cppunit/extensions/HelperMacros.h>
+
+
+namespace LiveSupport {
+namespace GstreamerElements {
+
+/* ================================================================ constants */
+
+
+/* =================================================================== macros */
+
+
+/* =============================================================== data types */
+
+/**
+ *  Unit test for the partialplay gstreamer element.
+ *
+ *  @author  $Author: maroy $
+ *  @version $Revision: 1.1 $
+ */
+class SwitcherTest : public CPPUNIT_NS::TestFixture
+{
+    CPPUNIT_TEST_SUITE(SwitcherTest);
+    CPPUNIT_TEST(firstTest);
+    CPPUNIT_TEST_SUITE_END();
+
+    protected:
+
+        /**
+         *  A simple smoke test.
+         *
+         *  @exception CPPUNIT_NS::Exception on test failures.
+         */
+        void
+        firstTest(void)                         throw (CPPUNIT_NS::Exception);
+
+
+    public:
+        
+        /**
+         *  Set up the environment for the test case.
+         */
+        void
+        setUp(void)                                     throw ();
+
+        /**
+         *  Clean up the environment after the test case.
+         */
+        void
+        tearDown(void)                                  throw ();
+};
+
+
+/* ================================================= external data structures */
+
+
+/* ====================================================== function prototypes */
+
+
+} // namespace GstreamerElements
+} // namespace LiveSupport
+
+#endif // SwitcherTest_h
+

livesupport/modules/gstreamerElements/src/partial-play.c

@@ -22,7 +22,7 @@
  
  
     Author   : $Author: maroy $
-    Version  : $Revision: 1.1 $
+    Version  : $Revision: 1.2 $
     Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/gstreamerElements/src/partial-play.c,v $
 
 ------------------------------------------------------------------------------*/
@@ -86,7 +86,7 @@ GST_PLUGIN_DEFINE (
     "partialplay",
     "Partial play",
     plugin_init,
-    "$Revision: 1.1 $",
+    "$Revision: 1.2 $",
     "GPL",
     "LiveSupport",
     "http://livesupport.campware.org/"
@@ -113,6 +113,17 @@ livesupport_partial_play_class_init(LivesupportPartialPlayClass   * klass);
 static void
 livesupport_partial_play_base_init(LivesupportPartialPlayClass    * klass);
 
+/**
+ *  Signal handler for the eos event of the SeekPack->bin element.
+ *
+ *  @param element the element emitting the eos signal
+ *  @param userData pointer to the container bin of the switcher,
+ *         which is this PartialPlay element
+ */
+static void
+seek_pack_eos_signal_handler(GstElement     * element,
+                             gpointer         userData);
+
 /**
  *  PartialPlay instance initializer.
  *
@@ -329,6 +340,25 @@ livesupport_partial_play_class_init(LivesupportPartialPlayClass   * klass)
 }
 
 
+/*------------------------------------------------------------------------------
+ *  eos signal handler for the seekPack->bin element
+ *----------------------------------------------------------------------------*/
+static void
+seek_pack_eos_signal_handler(GstElement     * element,
+                             gpointer         userData)
+{
+    GstElement    * container = GST_ELEMENT(userData);
+
+    g_return_if_fail(container != NULL);
+    g_return_if_fail(GST_IS_ELEMENT(container));
+
+    /* set the container into eos state */
+
+    GST_DEBUG("SeekPack.bin setting PartialPlay to eos");
+    gst_element_set_eos(container);
+}
+
+
 /*------------------------------------------------------------------------------
  *  Initialize a new PartialPlay element.
  *----------------------------------------------------------------------------*/
@@ -343,6 +373,11 @@ livesupport_partial_play_init(LivesupportPartialPlay  * pplay)
                             gst_element_get_pad(pplay->seekPack->bin, "src"),
                             "src");
 
+    g_signal_connect(pplay->seekPack->bin,
+                     "eos",
+                     G_CALLBACK(seek_pack_eos_signal_handler),
+                     pplay);
+
     /* TODO: free these strings when disposing of the object */
     pplay->location        = g_strdup("");
     pplay->config          = g_strdup("");

livesupport/modules/gstreamerElements/src/seek-pack.c

@@ -22,7 +22,7 @@
  
  
     Author   : $Author: maroy $
-    Version  : $Revision: 1.1 $
+    Version  : $Revision: 1.2 $
     Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/gstreamerElements/src/seek-pack.c,v $
 
 ------------------------------------------------------------------------------*/
@@ -42,6 +42,7 @@
 
 #include <gst/gst.h>
 
+#include "util.h"
 #include "seek.h"
 #include "seek-pack.h"
 
@@ -61,6 +62,16 @@
 
 /* ===============================================  local function prototypes */
 
+/**
+ *  Signal handler for the eos event of the switcher element.
+ *
+ *  @param element the element emitting the eos signal
+ *  @param userData pointer to the container bin of the switcher.
+ */
+static void
+switcher_eos_signal_handler(GstElement     * element,
+                            gpointer         userData);
+
 /**
  *  Perform the seeks on the SeekPack, set by the initialization function.
  *
@@ -73,6 +84,25 @@ livesupport_seek_pack_seek(LivesupportSeekPack    * seekPack);
 
 /* =============================================================  module code */
 
+/*------------------------------------------------------------------------------
+ *  eos signal handler for the switcher element
+ *----------------------------------------------------------------------------*/
+static void
+switcher_eos_signal_handler(GstElement     * element,
+                            gpointer         userData)
+{
+    GstElement    * container = GST_ELEMENT(userData);
+
+    g_return_if_fail(container != NULL);
+    g_return_if_fail(GST_IS_ELEMENT(container));
+
+    /* set the container into eos state */
+
+    GST_DEBUG("SeekPack.switcher setting SeekPack.bin to eos");
+    gst_element_set_eos(container);
+}
+
+
 /*------------------------------------------------------------------------------
  *  Create a new SeekPack.
  *----------------------------------------------------------------------------*/
@@ -102,6 +132,11 @@ livesupport_seek_pack_new(const gchar    * uniqueName)
     seekPack->bin       = gst_bin_new(str);
     g_free(str);
 
+    g_signal_connect(seekPack->switcher,
+                     "eos",
+                     G_CALLBACK(switcher_eos_signal_handler),
+                     seekPack->bin);
+
     seekPack->silenceDuration   = 0LL;
     seekPack->startTime         = 0LL;
     seekPack->endTime           = 0LL;

livesupport/modules/gstreamerElements/src/seek.c

@@ -22,13 +22,14 @@
  
  
     Author   : $Author: maroy $
-    Version  : $Revision: 1.1 $
+    Version  : $Revision: 1.2 $
     Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/gstreamerElements/src/seek.c,v $
 
 ------------------------------------------------------------------------------*/
 
 /* ============================================================ include files */
 
+#include "util.h"
 #include "seek.h"
 
 
@@ -69,17 +70,6 @@ seek_element(GstElement   * element,
              gint64         seekTime);
 #endif
 
-#ifndef SEEK_ELEMENT
-/**
- *  Return the first src pad for an element.
- *
- *  @param element the element to return the pad from.
- *  @return the first src pad for element, or NULL.
- */
-static GstPad *
-get_src_pad(GstElement    * element);
-#endif
-
 #ifndef SEEK_ELEMENT
 /**
  *  Seek on the first src pad of an element.
@@ -112,30 +102,6 @@ seek_element(GstElement   * element,
 #endif
 
 
-#ifndef SEEK_ELEMENT
-/*------------------------------------------------------------------------------
- *  Return the first src pad for an element.
- *----------------------------------------------------------------------------*/
-static GstPad *
-get_src_pad(GstElement    * element)
-{
-    const GList   * pads;
-
-    for (pads = gst_element_get_pad_list(element);
-         pads;
-         pads = g_list_next(pads)) {
-        GstPad    * pad = pads->data;
-
-        if (GST_PAD_IS_SRC(pad)) {
-            return pad;
-        }
-    }
-
-    return 0;
-}
-#endif
-
-
 #ifndef SEEK_ELEMENT
 /*------------------------------------------------------------------------------
  *  Seek on the first src pad of an element.

livesupport/modules/gstreamerElements/src/switcher.c

@@ -22,7 +22,7 @@
  
  
     Author   : $Author: maroy $
-    Version  : $Revision: 1.1 $
+    Version  : $Revision: 1.2 $
     Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/gstreamerElements/src/switcher.c,v $
 
 ------------------------------------------------------------------------------*/
@@ -64,7 +64,7 @@ GST_PLUGIN_DEFINE (
     "switcher",
     "A filter that connects to a swtich, and changes its source",
     plugin_init,
-    "$Revision: 1.1 $",
+    "$Revision: 1.2 $",
     "GPL",
     "LiveSupport",
     "http://livesupport.campware.org/"
@@ -385,7 +385,6 @@ livesupport_switcher_chain(GstPad     * pad,
     g_return_if_fail(LIVESUPPORT_IS_SWITCHER(switcher));
 
     if (switcher->eos) {
-        GstElement    * parent;
         GstEvent      * event;
 
         GST_DEBUG("switcher_chain: eos");
@@ -394,22 +393,6 @@ livesupport_switcher_chain(GstPad     * pad,
         gst_pad_send_event(switcher->srcpad, event);
         gst_element_set_eos(GST_ELEMENT(switcher));
 
-        parent = GST_ELEMENT(gst_element_get_parent(GST_ELEMENT(switcher)));
-        if (parent) {
-            gst_element_set_eos(parent);
-        }
-        /* TODO: fix this mess here... */
-        /*
-        for (parent =
-                 GST_ELEMENT(gst_element_get_parent(GST_ELEMENT(switcher)));
-             parent;
-             parent = GST_ELEMENT(gst_element_get_parent(parent))) {
-
-            GST_DEBUG("switcher_chain: eos #1.1");
-            gst_element_set_eos(parent);
-        }
-        */
-
         return;
     }
 

livesupport/modules/gstreamerElements/src/util.c

@@ -0,0 +1,68 @@
+/*------------------------------------------------------------------------------
+
+    Copyright (c) 2004 Media Development Loan Fund
+ 
+    This file is part of the LiveSupport project.
+    http://livesupport.campware.org/
+    To report bugs, send an e-mail to bugs@campware.org
+ 
+    LiveSupport is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+  
+    LiveSupport 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 General Public License for more details.
+ 
+    You should have received a copy of the GNU General Public License
+    along with LiveSupport; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ 
+ 
+    Author   : $Author: maroy $
+    Version  : $Revision: 1.1 $
+    Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/gstreamerElements/src/util.c,v $
+
+------------------------------------------------------------------------------*/
+
+/* ============================================================ include files */
+
+#include "util.h"
+
+
+/* ===================================================  local data structures */
+
+
+/* ================================================  local constants & macros */
+
+
+/* ===============================================  local function prototypes */
+
+
+/* =============================================================  module code */
+
+/*------------------------------------------------------------------------------
+ *  Return the first src pad for an element.
+ *----------------------------------------------------------------------------*/
+GstPad *
+get_src_pad(GstElement    * element)
+{
+    const GList   * pads;
+
+    g_return_val_if_fail(element != NULL, NULL);
+
+    for (pads = gst_element_get_pad_list(element);
+         pads;
+         pads = g_list_next(pads)) {
+        GstPad    * pad = pads->data;
+
+        if (GST_PAD_IS_SRC(pad)) {
+            return pad;
+        }
+    }
+
+    return 0;
+}
+

livesupport/modules/gstreamerElements/src/util.h

@@ -0,0 +1,68 @@
+/*------------------------------------------------------------------------------
+
+    Copyright (c) 2004 Media Development Loan Fund
+ 
+    This file is part of the LiveSupport project.
+    http://livesupport.campware.org/
+    To report bugs, send an e-mail to bugs@campware.org
+ 
+    LiveSupport is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+  
+    LiveSupport 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 General Public License for more details.
+ 
+    You should have received a copy of the GNU General Public License
+    along with LiveSupport; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ 
+ 
+    Author   : $Author: maroy $
+    Version  : $Revision: 1.1 $
+    Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/gstreamerElements/src/util.h,v $
+
+------------------------------------------------------------------------------*/
+#ifndef Util_h
+#define Util_h
+
+/**
+ *  @file
+ *  Utility functions helping to work with SMIL-related data structures.
+ *
+ *  @author $Author: maroy $
+ *  @version $Revision: 1.1 $
+ */
+
+
+/* ============================================================ include files */
+
+#include <gst/gst.h>
+
+
+/* ================================================================ constants */
+
+
+/* =================================================================== macros */
+
+
+/* =============================================================== data types */
+
+
+/* ====================================================== function prototypes */
+
+/**
+ *  Return the first src pad for an element.
+ *
+ *  @param element the element to return the pad from.
+ *  @return the first src pad for element, or NULL.
+ */
+GstPad *
+get_src_pad(GstElement    * element);
+
+
+#endif /* Util_h */
+