winegstreamer: Link the container pads and activate ours.

dlls/winegstreamer/wg_transform.c

@@ -46,6 +46,7 @@ struct wg_transform
 {
     GstElement *container;
     GstPad *my_src, *my_sink;
+    GstPad *their_sink, *their_src;
 };
 
 static GstFlowReturn transform_sink_chain_cb(GstPad *pad, GstObject *parent, GstBuffer *buffer)
@@ -64,6 +65,8 @@ NTSTATUS wg_transform_destroy(void *args)
     struct wg_transform *transform = args;
 
     gst_element_set_state(transform->container, GST_STATE_NULL);
+    g_object_unref(transform->their_sink);
+    g_object_unref(transform->their_src);
     g_object_unref(transform->container);
     g_object_unref(transform->my_sink);
     g_object_unref(transform->my_src);
@@ -237,6 +240,19 @@ NTSTATUS wg_transform_create(void *args)
             goto out;
     }
 
+    if (!(transform->their_sink = gst_element_get_static_pad(first, "sink")))
+        goto out;
+    if (!(transform->their_src = gst_element_get_static_pad(last, "src")))
+        goto out;
+    if (gst_pad_link(transform->my_src, transform->their_sink) < 0)
+        goto out;
+    if (gst_pad_link(transform->their_src, transform->my_sink) < 0)
+        goto out;
+    if (!gst_pad_set_active(transform->my_sink, 1))
+        goto out;
+    if (!gst_pad_set_active(transform->my_src, 1))
+        goto out;
+
     gst_element_set_state(transform->container, GST_STATE_PAUSED);
     if (!gst_element_get_state(transform->container, NULL, NULL, -1))
         goto out;
@@ -249,6 +265,10 @@ NTSTATUS wg_transform_create(void *args)
     return STATUS_SUCCESS;
 
 out:
+    if (transform->their_sink)
+        gst_object_unref(transform->their_sink);
+    if (transform->their_src)
+        gst_object_unref(transform->their_src);
     if (transform->my_sink)
         gst_object_unref(transform->my_sink);
     if (sink_caps)