playsink: cache inner converter bin caps

https://bugzilla.gnome.org/show_bug.cgi?id=661262

diff --git a/gst/playback/gstplaysinkconvertbin.c b/gst/playback/gstplaysinkconvertbin.c
index c3949dc..8754449 100644 (file)
--- a/gst/playback/gstplaysinkconvertbin.c
+++ b/gst/playback/gstplaysinkconvertbin.c
@@ -386,6 +386,29 @@ gst_play_sink_convert_bin_finalize (GObject * object)
   G_OBJECT_CLASS (parent_class)->finalize (object);
 }
 
+static void
+gst_play_sink_convert_bin_cache_converter_caps (GstPlaySinkConvertBin * self)
+{
+  GstElement *head;
+  GstPad *pad;
+
+  self->converter_caps = NULL;
+
+  if (!self->conversion_elements)
+    return;
+
+  head = GST_ELEMENT (g_list_first (self->conversion_elements)->data);
+  pad = gst_element_get_static_pad (head, "sink");
+  if (!pad)
+    return;
+
+  self->converter_caps = gst_pad_get_caps_reffed (pad);
+  GST_INFO_OBJECT (self, "Converter caps: %" GST_PTR_FORMAT,
+      self->converter_caps);
+
+  gst_object_unref (pad);
+}
+
 static GstStateChangeReturn
 gst_play_sink_convert_bin_change_state (GstElement * element,
     GstStateChange transition)
@@ -401,6 +424,7 @@ gst_play_sink_convert_bin_change_state (GstElement * element,
         GST_ELEMENT_ERROR (self, CORE, PAD,
             (NULL), ("Failed to configure the converter bin."));
       }
+      gst_play_sink_convert_bin_cache_converter_caps (self);
       gst_play_sink_convert_bin_add_identity (self);
       GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
       break;
@@ -449,6 +473,10 @@ gst_play_sink_convert_bin_change_state (GstElement * element,
         gst_bin_remove (GST_BIN_CAST (self), self->identity);
         self->identity = NULL;
       }
+      if (self->converter_caps) {
+        gst_caps_unref (self->converter_caps);
+        self->converter_caps = NULL;
+      }
       GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
       break;
     default:

diff --git a/gst/playback/gstplaysinkconvertbin.h b/gst/playback/gstplaysinkconvertbin.h
index 2665651..7fac18d 100644 (file)
--- a/gst/playback/gstplaysinkconvertbin.h
+++ b/gst/playback/gstplaysinkconvertbin.h
@@ -74,6 +74,8 @@ struct _GstPlaySinkConvertBin
   GList *conversion_elements;
   GstElement *identity;
 
+  GstCaps *converter_caps;
+
   /* configuration for derived classes */
   gboolean audio;
   gboolean (*add_conversion_elements)(GstPlaySinkConvertBin *);