vendor: OpenCV 5.0.0 snapshot at 40738fb16ceddb5fb3fea747585f7ce6abb0605b

modules/videoio/cmake/detect_msmf.cmake

@@ -0,0 +1,22 @@
+# --- VideoInput/Microsoft Media Foundation ---
+if(NOT HAVE_MSMF)
+  check_include_file(mfapi.h HAVE_MFAPI)
+  if(HAVE_MFAPI)
+    set(HAVE_MSMF TRUE)
+  endif()
+endif()
+
+if(HAVE_MSMF)
+  if(WITH_MSMF_DXVA)
+    check_include_file(d3d11.h HAVE_D3D11)
+    check_include_file(d3d11_4.h HAVE_D3D11_4)
+    if(HAVE_D3D11 AND HAVE_D3D11_4)
+      set(HAVE_MSMF_DXVA TRUE)
+    endif()
+  endif()
+  set(defs "HAVE_MSMF")
+  if(HAVE_MSMF_DXVA)
+    list(APPEND defs "HAVE_MSMF_DXVA")
+  endif()
+  ocv_add_external_target(msmf "" "" "${defs}")
+endif()