75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef DOM_MEDIA_PLATFORM_WMF_MFCDMPROXY_H
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#define DOM_MEDIA_PLATFORM_WMF_MFCDMPROXY_H
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#include <map>
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#include <mfobjects.h>
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#include <unknwn.h>
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#include <windef.h>
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#include <wrl.h>
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#include "MFCDMExtra.h"
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#include "nsISupportsImpl.h"
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namespace mozilla {
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/**
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* MFCDMProxy wraps a IMFContentDecryptionModule and provides some high level
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* helper methods in order to allow caller to interact with the wrapped CDM.
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*/
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class MFCDMProxy {
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MFCDMProxy);
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MFCDMProxy(IMFContentDecryptionModule* aCDM, uint64_t aCDMParentId);
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public:
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// Return a IMediaProtectionPMPServer from the existing CDM.
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HRESULT GetPMPServer(REFIID aRiid, LPVOID* aPMPServerOut);
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// Return a IMFInputTrustAuthority for given stream id, the same stream ID
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// always maps to the same IMFInputTrustAuthority. In addition,
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// `aContentInitData` is optional initialization data as in
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// https://www.w3.org/TR/encrypted-media/#initialization-data
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HRESULT GetInputTrustAuthority(uint32_t aStreamId,
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const uint8_t* aContentInitData,
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uint32_t aContentInitDataSize, REFIID aRiid,
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IUnknown** aInputTrustAuthorityOut);
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// Set IMFContentEnabler to the existing CDM, `aRequest` should be a inherited
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// class of `IMFContentEnabler`.
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HRESULT SetContentEnabler(IUnknown* aRequest, IMFAsyncResult* aResult);
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// Notify the CDM on DRM_E_TEE_INVALID_HWDRM_STATE (0x8004cd12), which happens
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// in cases like OS Sleep. In this case, the CDM should close all sessions
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// because they are in bad state.
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void OnHardwareContextReset();
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void Shutdown();
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// TODO : set last key id in order to let CDM use the key IDs information to
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// perform some optimization.
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private:
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~MFCDMProxy();
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Microsoft::WRL::ComPtr<IMFContentDecryptionModule> mCDM;
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// The same ITA is always mapping to the same stream Id.
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std::map<uint32_t /* stream Id */,
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Microsoft::WRL::ComPtr<IMFInputTrustAuthority>>
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mInputTrustAuthorities;
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Microsoft::WRL::ComPtr<IMFTrustedInput> mTrustedInput;
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const uint64_t mCDMParentId;
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// TODO : need some events? (Eg. significant playback, error, hardware context
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// reset)
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};
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} // namespace mozilla
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#endif // DOM_MEDIA_PLATFORM_WMF_MFCDMPROXY_H
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