evr/mixer: Return initial mixing preferences.

dlls/evr/mixer.c

@@ -73,6 +73,7 @@ struct video_mixer
     IDirect3DDeviceManager9 *device_manager;
     IMediaEventSink *event_sink;
     IMFAttributes *attributes;
+    unsigned int mixing_flags;
     CRITICAL_SECTION cs;
 };
 
@@ -1008,16 +1009,31 @@ static HRESULT WINAPI video_mixer_control_GetStreamOutputRect(IMFVideoMixerContr
 
 static HRESULT WINAPI video_mixer_control_SetMixingPrefs(IMFVideoMixerControl2 *iface, DWORD flags)
 {
-    FIXME("%p, %#x.\n", iface, flags);
+    struct video_mixer *mixer = impl_from_IMFVideoMixerControl2(iface);
 
-    return E_NOTIMPL;
+    TRACE("%p, %#x.\n", iface, flags);
+
+    EnterCriticalSection(&mixer->cs);
+    mixer->mixing_flags = flags;
+    LeaveCriticalSection(&mixer->cs);
+
+    return S_OK;
 }
 
 static HRESULT WINAPI video_mixer_control_GetMixingPrefs(IMFVideoMixerControl2 *iface, DWORD *flags)
 {
-    FIXME("%p, %p.\n", iface, flags);
+    struct video_mixer *mixer = impl_from_IMFVideoMixerControl2(iface);
 
-    return E_NOTIMPL;
+    TRACE("%p, %p.\n", iface, flags);
+
+    if (!flags)
+        return E_POINTER;
+
+    EnterCriticalSection(&mixer->cs);
+    *flags = mixer->mixing_flags;
+    LeaveCriticalSection(&mixer->cs);
+
+    return S_OK;
 }
 
 static const IMFVideoMixerControl2Vtbl video_mixer_control_vtbl =

dlls/evr/tests/evr.c

@@ -414,6 +414,7 @@ static void test_default_mixer(void)
 {
     DWORD input_min, input_max, output_min, output_max;
     IMFAttributes *attributes, *attributes2;
+    IMFVideoMixerControl2 *mixer_control2;
     MFT_OUTPUT_STREAM_INFO output_info;
     MFT_INPUT_STREAM_INFO input_info;
     DWORD input_count, output_count;
@@ -424,12 +425,12 @@ static void test_default_mixer(void)
     IMFTransform *transform;
     DXVA2_ValueRange range;
     DXVA2_Fixed32 value;
+    DWORD flags, count;
     IMFGetService *gs;
     COLORREF color;
     unsigned int i;
     DWORD ids[16];
     IUnknown *unk;
-    DWORD count;
     GUID *guids;
     HRESULT hr;
     IID iid;
@@ -455,6 +456,18 @@ static void test_default_mixer(void)
     ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
     IUnknown_Release(unk);
 
+    if (SUCCEEDED(IMFGetService_GetService(gs, &MR_VIDEO_MIXER_SERVICE, &IID_IMFVideoMixerControl2, (void **)&mixer_control2)))
+    {
+        hr = IMFVideoMixerControl2_GetMixingPrefs(mixer_control2, NULL);
+        ok(hr == E_POINTER, "Unexpected hr %#x.\n", hr);
+
+        hr = IMFVideoMixerControl2_GetMixingPrefs(mixer_control2, &flags);
+        ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
+        ok(!flags, "Unexpected flags %#x.\n", flags);
+
+        IMFVideoMixerControl2_Release(mixer_control2);
+    }
+
     hr = IMFVideoProcessor_GetBackgroundColor(processor, NULL);
     ok(hr == E_POINTER, "Unexpected hr %#x.\n", hr);
 

include/evr.idl

@@ -184,6 +184,16 @@ interface IMFVideoMixerControl : IUnknown
     );
 }
 
+typedef enum _MFVideoMixPrefs
+{
+    MFVideoMixPrefs_ForceHalfInterlace       = 0x00000001,
+    MFVideoMixPrefs_AllowDropToHalfInterlace = 0x00000002,
+    MFVideoMixPrefs_AllowDropToBob           = 0x00000004,
+    MFVideoMixPrefs_ForceBob                 = 0x00000008,
+    MFVideoMixPrefs_EnableRotation           = 0x00000010,
+    MFVideoMixPrefs_Mask                     = 0x0000001f,
+} MFVideoMixPrefs;
+
 [
     object,
     uuid(8459616d-966e-4930-b658-54fa7e5a16d3)