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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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_EME_MEDIAFOUNDATION_WMFCDMIMPL_H_
#define DOM_MEDIA_EME_MEDIAFOUNDATION_WMFCDMIMPL_H_
#include "MediaData.h"
#include "mozilla/Assertions.h"
#include "mozilla/EMEUtils.h"
#include "mozilla/KeySystemConfig.h"
#include "mozilla/media/MediaUtils.h"
#include "mozilla/MFCDMChild.h"
#include "nsString.h"
#include "nsThreadUtils.h"
namespace mozilla {
class WMFCDMProxyCallback;
/**
* WMFCDMImpl is a helper class for MFCDM protocol clients. It creates, manages,
* and calls MFCDMChild object in the content process on behalf of the client,
* and performs conversion between EME and MFCDM types and constants.
*/
class WMFCDMImpl final {
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(WMFCDMImpl);
explicit WMFCDMImpl(const nsAString& aKeySystem)
: mCDM(MakeRefPtr<MFCDMChild>(aKeySystem)) {}
static bool Supports(const nsAString& aKeySystem);
// TODO: make this async?
bool GetCapabilities(KeySystemConfig& aConfig);
using InitPromise = GenericPromise;
struct InitParams {
nsString mOrigin;
CopyableTArray<nsString> mInitDataTypes;
bool mPersistentStateRequired;
bool mDistinctiveIdentifierRequired;
bool mHWSecure;
WMFCDMProxyCallback* mProxyCallback;
};
RefPtr<InitPromise> Init(const InitParams& aParams);
RefPtr<MFCDMChild::SessionPromise> CreateSession(
uint32_t aPromiseId, const KeySystemConfig::SessionType aSessionType,
const nsAString& aInitDataType, const nsTArray<uint8_t>& aInitData) {
return mCDM->CreateSessionAndGenerateRequest(aPromiseId, aSessionType,
aInitDataType, aInitData);
}
RefPtr<GenericPromise> LoadSession(
uint32_t aPromiseId, const KeySystemConfig::SessionType aSessionType,
const nsAString& aSessionId) {
return mCDM->LoadSession(aPromiseId, aSessionType, aSessionId);
}
RefPtr<GenericPromise> UpdateSession(uint32_t aPromiseId,
const nsAString& aSessionId,
nsTArray<uint8_t>& aResponse) {
return mCDM->UpdateSession(aPromiseId, aSessionId, aResponse);
}
RefPtr<GenericPromise> CloseSession(uint32_t aPromiseId,
const nsAString& aSessionId) {
return mCDM->CloseSession(aPromiseId, aSessionId);
}
RefPtr<GenericPromise> RemoveSession(uint32_t aPromiseId,
const nsAString& aSessionId) {
return mCDM->RemoveSession(aPromiseId, aSessionId);
}
uint64_t Id() {
MOZ_ASSERT(mCDM->Id() != 0,
"Should be called only after Init() is resolved");
return mCDM->Id();
}
private:
~WMFCDMImpl() {
if (mCDM) {
mCDM->Shutdown();
}
};
const RefPtr<MFCDMChild> mCDM;
MozPromiseHolder<InitPromise> mInitPromiseHolder;
};
} // namespace mozilla
#endif // DOM_MEDIA_EME_MEDIAFOUNDATION_WMFCDMIMPL_H_
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