--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gst_plugins_base/gst/playback/decodetest.c	Thu Dec 17 08:53:32 2009 +0200
@@ -0,0 +1,173 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * 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.
+ */
+#include <gst/gst.h>
+#include <string.h>
+
+static void
+warning_cb (GstBus * bus, GstMessage * msg, gpointer foo)
+{
+  GError *err = NULL;
+  gchar *dbg = NULL;
+
+  gst_message_parse_warning (msg, &err, &dbg);
+
+  g_printerr ("WARNING: %s (%s)\n", err->message, (dbg) ? dbg : "no details");
+
+  g_error_free (err);
+  g_free (dbg);
+}
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+
+
+static void
+error_cb (GstBus * bus, GstMessage * msg, GMainLoop * main_loop)
+{
+  GError *err = NULL;
+  gchar *dbg = NULL;
+
+  gst_message_parse_error (msg, &err, &dbg);
+
+  g_printerr ("ERROR: %s (%s)\n", err->message, (dbg) ? dbg : "no details");
+
+  g_main_loop_quit (main_loop);
+
+  g_error_free (err);
+  g_free (dbg);
+}
+
+static void
+eos_cb (GstBus * bus, GstMessage * msg, GMainLoop * main_loop)
+{
+  g_print ("EOS\n");
+  g_main_loop_quit (main_loop);
+}
+
+static void
+state_cb (GstBus * bus, GstMessage * msg, GstElement * pipeline)
+{
+  if (msg->src == GST_OBJECT (pipeline)) {
+    GstState old_state, new_state, pending_state;
+
+    gst_message_parse_state_changed (msg, &old_state, &new_state,
+        &pending_state);
+    if (new_state == GST_STATE_PLAYING) {
+      g_print ("Decoding ...\n");
+    }
+  }
+}
+
+static void
+new_decoded_pad_cb (GstElement * decodebin, GstPad * pad, gboolean last,
+    GstElement * pipeline)
+{
+  GstPadLinkReturn ret;
+  GstElement *fakesink;
+  GstPad *fakesink_pad;
+
+  fakesink = gst_element_factory_make ("fakesink", NULL);
+  fakesink_pad = gst_element_get_pad (fakesink, "sink");
+
+  gst_bin_add (GST_BIN (pipeline), fakesink);
+
+  /* this doesn't really seem right, but it makes things work for me */
+  gst_element_set_state (fakesink, GST_STATE_PLAYING);
+
+  ret = gst_pad_link (pad, fakesink_pad);
+  if (!GST_PAD_LINK_SUCCESSFUL (ret)) {
+    g_printerr ("Failed to link %s:%s to %s:%s (ret = %d)\n",
+        GST_DEBUG_PAD_NAME (pad), GST_DEBUG_PAD_NAME (fakesink_pad), ret);
+  } else {
+    g_printerr ("Linked %s:%s to %s:%s\n", GST_DEBUG_PAD_NAME (pad),
+        GST_DEBUG_PAD_NAME (fakesink_pad));
+  }
+
+  gst_object_unref (fakesink_pad);
+}
+
+gint
+main (gint argc, gchar * argv[])
+{
+  GstElement *decoder;
+  GstElement *source;
+  GstElement *pipeline;
+  GstStateChangeReturn res;
+  GMainLoop *loop;
+  GstBus *bus;
+
+  gst_init (&argc, &argv);
+
+  if (argc != 2) {
+    g_printerr ("Decode file from start to end.\n");
+    g_printerr ("Usage: %s URI\n\n", argv[0]);
+    return 1;
+  }
+
+  loop = g_main_loop_new (NULL, TRUE);
+
+  pipeline = gst_pipeline_new ("pipeline");
+
+  bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
+  gst_bus_add_signal_watch (bus);
+
+  g_signal_connect (bus, "message::eos", G_CALLBACK (eos_cb), loop);
+  g_signal_connect (bus, "message::error", G_CALLBACK (error_cb), loop);
+  g_signal_connect (bus, "message::warning", G_CALLBACK (warning_cb), NULL);
+  g_signal_connect (bus, "message::state-changed", G_CALLBACK (state_cb),
+      pipeline);
+
+  source = gst_element_factory_make ("gnomevfssrc", "source");
+  g_assert (source);
+
+  if (argv[1] && strstr (argv[1], "://") != NULL) {
+    g_object_set (G_OBJECT (source), "location", argv[1], NULL);
+  } else if (argv[1]) {
+    gchar *uri = g_strdup_printf ("file://%s", argv[1]);
+
+    g_object_set (G_OBJECT (source), "location", uri, NULL);
+    g_free (uri);
+  }
+
+  decoder = gst_element_factory_make ("decodebin", "decoder");
+  g_assert (decoder);
+
+  gst_bin_add (GST_BIN (pipeline), source);
+  gst_bin_add (GST_BIN (pipeline), decoder);
+
+  gst_element_link_pads (source, "src", decoder, "sink");
+
+  g_signal_connect (decoder, "new-decoded-pad",
+      G_CALLBACK (new_decoded_pad_cb), pipeline);
+
+  res = gst_element_set_state (pipeline, GST_STATE_PLAYING);
+  if (res == GST_STATE_CHANGE_FAILURE) {
+    g_print ("could not play\n");
+    return -1;
+  }
+
+  g_main_loop_run (loop);
+
+  /* tidy up */
+  gst_element_set_state (pipeline, GST_STATE_NULL);
+  gst_object_unref (pipeline);
+  gst_object_unref (bus);
+
+  return 0;
+}