evr/mixer: Implement GetVideoProcessorCaps().

dlls/evr/mixer.c

@@ -1956,9 +1956,30 @@ static HRESULT WINAPI video_mixer_processor_GetAvailableVideoProcessorModes(IMFV
 static HRESULT WINAPI video_mixer_processor_GetVideoProcessorCaps(IMFVideoProcessor *iface, GUID *mode,
         DXVA2_VideoProcessorCaps *caps)
 {
-    FIXME("%p, %s, %p.\n", iface, debugstr_guid(mode), caps);
+    struct video_mixer *mixer = impl_from_IMFVideoProcessor(iface);
+    IDirectXVideoProcessorService *service;
+    DXVA2_VideoDesc video_desc;
+    GUID subtype = { 0 };
+    HRESULT hr;
 
-    return E_NOTIMPL;
+    TRACE("%p, %s, %p.\n", iface, debugstr_guid(mode), caps);
+
+    EnterCriticalSection(&mixer->cs);
+
+    if (!mixer->inputs[0].media_type || !mixer->output.media_type)
+        hr = MF_E_TRANSFORM_TYPE_NOT_SET;
+    else if (SUCCEEDED(hr = video_mixer_get_processor_service(mixer, &service)))
+    {
+        video_mixer_init_dxva_videodesc(mixer->inputs[0].media_type, &video_desc);
+        IMFMediaType_GetGUID(mixer->output.media_type, &MF_MT_SUBTYPE, &subtype);
+
+        hr = IDirectXVideoProcessorService_GetVideoProcessorCaps(service, mode, &video_desc, subtype.Data1, caps);
+        IDirectXVideoProcessorService_Release(service);
+    }
+
+    LeaveCriticalSection(&mixer->cs);
+
+    return hr;
 }
 
 static HRESULT WINAPI video_mixer_processor_GetVideoProcessorMode(IMFVideoProcessor *iface, GUID *mode)

dlls/evr/tests/evr.c

@@ -1292,7 +1292,6 @@ static void test_default_mixer_type_negotiation(void)
     ok(hr == MF_E_TRANSFORM_TYPE_NOT_SET, "Unexpected hr %#lx.\n", hr);
 
     hr = IMFVideoProcessor_GetVideoProcessorCaps(processor, (GUID *)&DXVA2_VideoProcSoftwareDevice, &caps);
-    todo_wine
     ok(hr == MF_E_TRANSFORM_TYPE_NOT_SET, "Unexpected hr %#lx.\n", hr);
 
     hr = IMFTransform_GetInputCurrentType(transform, 0, &media_type);
@@ -1324,6 +1323,9 @@ static void test_default_mixer_type_negotiation(void)
     ok(count > 0 && !!guids, "Unexpected modes data.\n");
     CoTaskMemFree(guids);
 
+    hr = IMFVideoProcessor_GetVideoProcessorCaps(processor, (GUID *)&DXVA2_VideoProcSoftwareDevice, &caps);
+    ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
+
     hr = IMFTransform_GetOutputCurrentType(transform, 0, &media_type2);
     ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
     ok(media_type == media_type2, "Unexpected media type instance.\n");