winegstreamer: Expose the MF_MT_VIDEO_ROTATION attribute.

dlls/mfplat/tests/mfplat.c

@@ -664,6 +664,7 @@ static void test_source_resolver(void)
     HRESULT hr;
     GUID guid;
     float rate;
+    UINT32 rotation;
 
     if (!pMFCreateSourceResolver)
     {
@@ -849,6 +850,12 @@ static void test_source_resolver(void)
     ok(hr == S_OK, "Failed to get media sub type, hr %#x.\n", hr);
 todo_wine
     ok(IsEqualGUID(&guid, &MFVideoFormat_M4S2), "Unexpected sub type %s.\n", debugstr_guid(&guid));
+
+    hr = IMFMediaType_GetUINT32(media_type, &MF_MT_VIDEO_ROTATION, &rotation);
+    ok(hr == S_OK || broken(hr == MF_E_ATTRIBUTENOTFOUND) /* Win7 */, "Failed to get rotation, hr %#x.\n", hr);
+    if (hr == S_OK)
+        ok(rotation == MFVideoRotationFormat_0, "Got wrong rotation %u.\n", rotation);
+
     IMFMediaType_Release(media_type);
 
     hr = IMFPresentationDescriptor_SelectStream(descriptor, 0);

dlls/winegstreamer/mfplat.c

@@ -596,6 +596,7 @@ static IMFMediaType *mf_media_type_from_wg_format_video(const struct wg_format *
                     make_uint64(format->u.video.fps_n, format->u.video.fps_d));
             IMFMediaType_SetUINT32(type, &MF_MT_COMPRESSED, FALSE);
             IMFMediaType_SetUINT32(type, &MF_MT_ALL_SAMPLES_INDEPENDENT, TRUE);
+            IMFMediaType_SetUINT32(type, &MF_MT_VIDEO_ROTATION, MFVideoRotationFormat_0);
 
             return type;
         }

include/mfapi.h

@@ -449,6 +449,14 @@ typedef enum _MFWaveFormatExConvertFlags
     MFWaveFormatExConvertFlag_ForceExtensible = 1,
 } MFWaveFormatExConvertFlags;
 
+typedef enum _MFVideoRotationFormat
+{
+    MFVideoRotationFormat_0 = 0,
+    MFVideoRotationFormat_90 = 90,
+    MFVideoRotationFormat_180 = 180,
+    MFVideoRotationFormat_270 = 270
+} MFVideoRotationFormat;
+
 enum _MFT_ENUM_FLAG
 {
     MFT_ENUM_FLAG_SYNCMFT                         = 0x00000001,