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/* 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_MFCDMPROXY_H
#define DOM_MEDIA_PLATFORM_WMF_MFCDMPROXY_H
#include <map>
#include <mfobjects.h>
#include <unknwn.h>
#include <windef.h>
#include <wrl.h>
#include "MFCDMExtra.h"
#include "nsISupportsImpl.h"
namespace mozilla {
/**
* MFCDMProxy wraps a IMFContentDecryptionModule and provides some high level
* helper methods in order to allow caller to interact with the wrapped CDM.
*/
class MFCDMProxy {
NS_INLINE_DECL_REFCOUNTING(MFCDMProxy);
explicit MFCDMProxy(IMFContentDecryptionModule* aCDM) : mCDM(aCDM) {}
public:
// Return a IMediaProtectionPMPServer from the existing CDM.
HRESULT GetPMPServer(REFIID aRiid, LPVOID* aPMPServerOut);
// Return a IMFInputTrustAuthority for given stream id, the same stream ID
// always maps to the same IMFInputTrustAuthority. In addition,
// `aContentInitData` is optional initialization data as in
// https://www.w3.org/TR/encrypted-media/#initialization-data
HRESULT GetInputTrustAuthority(uint32_t aStreamId,
const uint8_t* aContentInitData,
uint32_t aContentInitDataSize, REFIID aRiid,
IUnknown** aInputTrustAuthorityOut);
// Set IMFContentEnabler to the existing CDM, `aRequest` should be a inherited
// class of `IMFContentEnabler`.
HRESULT SetContentEnabler(IUnknown* aRequest, IMFAsyncResult* aResult);
// Notify the CDM on DRM_E_TEE_INVALID_HWDRM_STATE (0x8004cd12), which happens
// in cases like OS Sleep. In this case, the CDM should close all sessions
// because they are in bad state.
void OnHardwareContextReset();
// TODO : set last key id in order to let CDM use the key IDs information to
// perform some optimization.
private:
~MFCDMProxy() = default;
Microsoft::WRL::ComPtr<IMFContentDecryptionModule> mCDM;
// The same ITA is always mapping to the same stream Id.
std::map<uint32_t /* stream Id */,
Microsoft::WRL::ComPtr<IMFInputTrustAuthority>>
mInputTrustAuthorities;
Microsoft::WRL::ComPtr<IMFTrustedInput> mTrustedInput;
// TODO : need some events? (Eg. significant playback, error, hardware context
// reset)
};
} // namespace mozilla
#endif // DOM_MEDIA_PLATFORM_WMF_MFCDMPROXY_H
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