[PATCH v3 3/5] winegstreamer: Add a bin container element to wg_transform.

[Rémi Bernon]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=51931
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=52391
Signed-off-by: Rémi Bernon <rbernon at codeweavers.com>
---
 dlls/winegstreamer/wg_transform.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/dlls/winegstreamer/wg_transform.c b/dlls/winegstreamer/wg_transform.c
index 3ebf49b94aa..a0805b9c45f 100644
--- a/dlls/winegstreamer/wg_transform.c
+++ b/dlls/winegstreamer/wg_transform.c
@@ -44,6 +44,7 @@ GST_DEBUG_CATEGORY_EXTERN(wine);
 
 struct wg_transform
 {
+    GstElement *container;
     GstPad *my_src, *my_sink;
 };
 
@@ -62,6 +63,8 @@ NTSTATUS wg_transform_destroy(void *args)
 {
     struct wg_transform *transform = args;
 
+    gst_element_set_state(transform->container, GST_STATE_NULL);
+    g_object_unref(transform->container);
     g_object_unref(transform->my_sink);
     g_object_unref(transform->my_src);
     free(transform);
@@ -84,6 +87,8 @@ NTSTATUS wg_transform_create(void *args)
 
     if (!(transform = calloc(1, sizeof(*transform))))
         return STATUS_NO_MEMORY;
+    if (!(transform->container = gst_bin_new("wg_transform")))
+        goto done;
 
     if (!(src_caps = wg_format_to_caps(&input_format)))
         goto done;
@@ -107,6 +112,10 @@ NTSTATUS wg_transform_create(void *args)
     gst_pad_set_element_private(transform->my_sink, transform);
     gst_pad_set_chain_function(transform->my_sink, transform_sink_chain_cb);
 
+    gst_element_set_state(transform->container, GST_STATE_PAUSED);
+    if (!gst_element_get_state(transform->container, NULL, NULL, -1))
+        goto done;
+
     status = STATUS_SUCCESS;
 
 done:
@@ -120,6 +129,11 @@ done:
     if (status)
     {
         GST_ERROR("Failed to create winegstreamer transform.");
+        if (transform->container)
+        {
+            gst_element_set_state(transform->container, GST_STATE_NULL);
+            g_object_unref(transform->container);
+        }
         if (transform->my_sink)
             g_object_unref(transform->my_sink);
         if (transform->my_src)
-- 
2.34.1