added some more checking

Original commit message from CVS:
added some more checking

diff --git a/examples/mixer/mixer.c b/examples/mixer/mixer.c
index 78568e9..0edbfa5 100644 (file)
--- a/examples/mixer/mixer.c
+++ b/examples/mixer/mixer.c
@@ -4,13 +4,13 @@
  * demonstrates the adder plugin and the volume envelope plugin 
  * work in progress but do try it out 
  * 
- * Latest change :     28/04/2001
+ * Latest change :     28/08/2001
  *                                     trying to adapt to incsched
  *                                     delayed start for channels > 1
  *                                     now works by quickhacking the
  *                                     adder plugin to set
  *                                     GST_ELEMENT_COTHREAD_STOPPING           
- * Version :           0.5
+ * Version :           0.5.1
  */
 
 #include <stdlib.h>
@@ -341,8 +341,13 @@ create_input_channel (int id, char* location)
   new_element = gst_bin_new ("autoplug_bin");
 
   /* static plug, use mad plugin and assume mp3 input */
+  printf ("using static plugging for input channel\n");
   decoder =  gst_elementfactory_make ("mad", "mpg123");
-
+  if (!decoder)
+  {
+    fprintf (stderr, "Could not get a decoder element !\n");
+    exit (1);
+  }
   gst_bin_add (GST_BIN (new_element), decoder);
 
   gst_element_add_ghost_pad (new_element, 

diff --git a/tests/old/examples/mixer/mixer.c b/tests/old/examples/mixer/mixer.c
index 78568e9..0edbfa5 100644 (file)
--- a/tests/old/examples/mixer/mixer.c
+++ b/tests/old/examples/mixer/mixer.c
@@ -4,13 +4,13 @@
  * demonstrates the adder plugin and the volume envelope plugin 
  * work in progress but do try it out 
  * 
- * Latest change :     28/04/2001
+ * Latest change :     28/08/2001
  *                                     trying to adapt to incsched
  *                                     delayed start for channels > 1
  *                                     now works by quickhacking the
  *                                     adder plugin to set
  *                                     GST_ELEMENT_COTHREAD_STOPPING           
- * Version :           0.5
+ * Version :           0.5.1
  */
 
 #include <stdlib.h>
@@ -341,8 +341,13 @@ create_input_channel (int id, char* location)
   new_element = gst_bin_new ("autoplug_bin");
 
   /* static plug, use mad plugin and assume mp3 input */
+  printf ("using static plugging for input channel\n");
   decoder =  gst_elementfactory_make ("mad", "mpg123");
-
+  if (!decoder)
+  {
+    fprintf (stderr, "Could not get a decoder element !\n");
+    exit (1);
+  }
   gst_bin_add (GST_BIN (new_element), decoder);
 
   gst_element_add_ghost_pad (new_element,