Nikolay Sivov : mf/evr: Return mixer's transform for MR_VIDEO_MIXER_SERVICE requests.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 34d453529216114e59115ed1e6853a7ef13c8057
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=34d453529216114e59115ed1e6853a7ef13c8057

Author: Nikolay Sivov <nsivov at codeweavers.com>
Date:   Thu Jul  9 15:08:50 2020 +0300

mf/evr: Return mixer's transform for MR_VIDEO_MIXER_SERVICE requests.

Signed-off-by: Nikolay Sivov <nsivov at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/mf/evr.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/dlls/mf/evr.c b/dlls/mf/evr.c
index b702ed2e22..42a6c98cf6 100644
--- a/dlls/mf/evr.c
+++ b/dlls/mf/evr.c
@@ -642,8 +642,16 @@ static HRESULT WINAPI video_renderer_service_lookup_LookupService(IMFTopologySer
     }
     else if (IsEqualGUID(service, &MR_VIDEO_MIXER_SERVICE))
     {
-        FIXME("Unimplemented lookup for mixer service.\n");
-        hr = MF_E_UNSUPPORTED_SERVICE;
+        if (IsEqualIID(riid, &IID_IMFTransform))
+        {
+            *objects = renderer->mixer;
+            IUnknown_AddRef((IUnknown *)*objects);
+        }
+        else
+        {
+            FIXME("Unsupported interface %s for mixer service.\n", debugstr_guid(riid));
+            hr = E_NOINTERFACE;
+        }
     }
     else
     {