winegstreamer: Release sink caps in the error path.

dlls/winegstreamer/wg_transform.c

@@ -338,7 +338,7 @@ NTSTATUS wg_transform_create(void *args)
     struct wg_format output_format = *params->output_format;
     struct wg_format input_format = *params->input_format;
     GstElement *first = NULL, *last = NULL, *element;
-    GstCaps *raw_caps = NULL, *src_caps = NULL;
+    GstCaps *sink_caps = NULL, *src_caps = NULL;
     NTSTATUS status = STATUS_UNSUCCESSFUL;
     GstPadTemplate *template = NULL;
     struct wg_transform *transform;
@@ -395,7 +395,7 @@ NTSTATUS wg_transform_create(void *args)
      * raw output media type should be enough.
      */
     media_type = gst_structure_get_name(gst_caps_get_structure(transform->output_caps, 0));
-    if (!(raw_caps = gst_caps_new_empty_simple(media_type)))
+    if (!(sink_caps = gst_caps_new_empty_simple(media_type)))
         goto out;
 
     switch (input_format.major_type)
@@ -408,12 +408,9 @@ NTSTATUS wg_transform_create(void *args)
         case WG_MAJOR_TYPE_VIDEO_INDEO:
         case WG_MAJOR_TYPE_VIDEO_WMV:
         case WG_MAJOR_TYPE_VIDEO_MPEG1:
-            if (!(element = find_element(GST_ELEMENT_FACTORY_TYPE_DECODER, src_caps, raw_caps))
+            if (!(element = find_element(GST_ELEMENT_FACTORY_TYPE_DECODER, src_caps, sink_caps))
                     || !append_element(transform->container, element, &first, &last))
-            {
-                gst_caps_unref(raw_caps);
                 goto out;
-            }
             break;
 
         case WG_MAJOR_TYPE_AUDIO:
@@ -421,12 +418,9 @@ NTSTATUS wg_transform_create(void *args)
             break;
         case WG_MAJOR_TYPE_UNKNOWN:
             GST_FIXME("Format %u not implemented!", input_format.major_type);
-            gst_caps_unref(raw_caps);
             goto out;
     }
 
-    gst_caps_unref(raw_caps);
-
     switch (output_format.major_type)
     {
         case WG_MAJOR_TYPE_AUDIO:
@@ -507,6 +501,7 @@ NTSTATUS wg_transform_create(void *args)
         goto out;
 
     gst_caps_unref(src_caps);
+    gst_caps_unref(sink_caps);
 
     GST_INFO("Created winegstreamer transform %p.", transform);
     params->transform = (wg_transform_t)(ULONG_PTR)transform;
@@ -521,6 +516,8 @@ out:
         gst_object_unref(transform->my_src);
     if (src_caps)
         gst_caps_unref(src_caps);
+    if (sink_caps)
+        gst_caps_unref(sink_caps);
     if (transform->allocator)
         wg_allocator_destroy(transform->allocator);
     if (transform->drain_query)