1 files changed, 42 insertions, 0 deletions
diff --git a/dom/media/platforms/wmf/MFPMPHostWrapper.h b/dom/media/platforms/wmf/MFPMPHostWrapper.h
new file mode 100644
index 0000000000..3b644283b7
--- /dev/null
+++ b/dom/media/platforms/wmf/MFPMPHostWrapper.h
@@ -0,0 +1,42 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef DOM_MEDIA_PLATFORM_WMF_MPMPHOSTWRAPPER_H
+#define DOM_MEDIA_PLATFORM_WMF_MPMPHOSTWRAPPER_H
+
+#include <wrl.h>
+#include <wrl/client.h>
+
+#include "MFCDMExtra.h"
+
+namespace mozilla {
+
+// This class is used to create and manage PMP sessions. For PlayReady CDM,
+// it needs to connect with IMFPMPHostApp first before generating any request.
+// That behavior is undocumented on the mdsn, see more details in
+// https://github.com/microsoft/media-foundation/issues/37#issuecomment-1197321484
+class MFPMPHostWrapper : public Microsoft::WRL::RuntimeClass<
+                             Microsoft::WRL::RuntimeClassFlags<
+                                 Microsoft::WRL::RuntimeClassType::ClassicCom>,
+                             IMFPMPHostApp> {
+ public:
+  MFPMPHostWrapper() = default;
+  ~MFPMPHostWrapper() = default;
+
+  HRESULT RuntimeClassInitialize(Microsoft::WRL::ComPtr<IMFPMPHost>& aHost);
+
+  STDMETHODIMP LockProcess() override;
+
+  STDMETHODIMP UnlockProcess() override;
+
+  STDMETHODIMP ActivateClassById(LPCWSTR aId, IStream* aStream, REFIID aRiid,
+                                 void** aActivatedClass) override;
+
+ private:
+  Microsoft::WRL::ComPtr<IMFPMPHost> mPMPHost;
+};
+
+}  // namespace mozilla
+
+#endif  // DOM_MEDIA_PLATFORM_WMF_MPMPHOSTWRAPPER_H