gst/level/gstlevel.*: figure out if we're initialized directly instead of keeping a variable that's wrong in 90% of c...

Original commit message from CVS:
* gst/level/gstlevel.c: (gst_level_link), (gst_level_chain),
(gst_level_change_state), (gst_level_init):
* gst/level/gstlevel.h:
figure out if we're initialized directly instead of keeping a
variable that's wrong in 90% of cases
don't initialize pads and then leak them and use a new unitialized
pad. (fixes #142084)
these were bugs so n00bish I didn't find them for an hour :/

2 files changed, 10 insertions, 11 deletions

diff --git a/gst/level/gstlevel.c b/gst/level/gstlevel.c
index f3ba18c0..7323da92 100644
--- a/gst/level/gstlevel.c
+++ b/gst/level/gstlevel.c
@@ -165,8 +165,6 @@ gst_level_link (GstPad * pad, const GstCaps * caps)
         filter->MS[i] = filter->RMS_dB[i] = 0.0;
   }
 
-  filter->inited = TRUE;
-
   return GST_PAD_LINK_OK;
 }
 
@@ -196,6 +194,13 @@ gst_level_fast_16bit_chain (gint16 * in, guint num, gint channels,
   g_return_if_fail (filter != NULL);
   g_return_if_fail (GST_IS_LEVEL (filter));
 
+  if (!gst_pad_is_negotiated (pad)) {
+    GST_ELEMENT_ERROR (filter, CORE, NEGOTIATION, (NULL),
+        ("sinkpad not negotiated"));
+    gst_data_unref (_data);
+    return;
+  }
+
   for (i = 0; i < filter->channels; ++i)
     filter->CS[i] = filter->peak[i] = filter->MS[i] = filter->RMS_dB[i] = 0.0;
 
@@ -288,12 +293,8 @@ gst_level_fast_16bit_chain (gint16 * in, guint num, gint channels,
 static GstElementStateReturn
 gst_level_change_state (GstElement * element)
 {
-  GstLevel *filter = GST_LEVEL (element);
-
   switch (GST_STATE_TRANSITION (element)) {
     case GST_STATE_PAUSED_TO_PLAYING:
-      if (!filter->inited)
-        return GST_STATE_FAILURE;
       break;
     default:
       break;
@@ -418,15 +419,14 @@ gst_level_init (GstLevel * filter)
       (&sink_template_factory), "sink");
   gst_pad_set_link_function (filter->sinkpad, gst_level_link);
   gst_pad_set_getcaps_function (filter->sinkpad, gst_pad_proxy_getcaps);
+  gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
+  gst_pad_set_chain_function (filter->sinkpad, gst_level_chain);
+
   filter->srcpad =
       gst_pad_new_from_template (gst_static_pad_template_get
       (&src_template_factory), "src");
   gst_pad_set_link_function (filter->srcpad, gst_level_link);
   gst_pad_set_getcaps_function (filter->srcpad, gst_pad_proxy_getcaps);
-
-  gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad);
-  gst_pad_set_chain_function (filter->sinkpad, gst_level_chain);
-  filter->srcpad = gst_pad_new ("src", GST_PAD_SRC);
   gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
 
   filter->CS = NULL;
diff --git a/gst/level/gstlevel.h b/gst/level/gstlevel.h
index 7a853771..59427c7d 100644
--- a/gst/level/gstlevel.h
+++ b/gst/level/gstlevel.h
@@ -54,7 +54,6 @@ struct _GstLevel {
 
   GstPad *sinkpad, *srcpad;
   gboolean signal;		/* whether or not to emit signals */
-  gboolean inited;              /* whether or not the element is initialized */
   gdouble interval;		/* how many seconds between emits */
 
   gint rate;			/* caps variables */