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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 ChromiumCDMChild_h_
#define ChromiumCDMChild_h_
#include "content_decryption_module.h"
#include "mozilla/gmp/PChromiumCDMChild.h"
#include "SimpleMap.h"
#include "WidevineVideoFrame.h"
namespace mozilla::gmp {
class GMPContentChild;
class ChromiumCDMChild : public PChromiumCDMChild, public cdm::Host_10 {
public:
// Mark AddRef and Release as `final`, as they overload pure virtual
// implementations in PChromiumCDMChild.
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(ChromiumCDMChild, final);
explicit ChromiumCDMChild(GMPContentChild* aPlugin);
void Init(cdm::ContentDecryptionModule_10* aCDM,
const nsACString& aStorageId);
void TimerExpired(void* aContext);
// cdm::Host_10 implementation
cdm::Buffer* Allocate(uint32_t aCapacity) override;
void SetTimer(int64_t aDelayMs, void* aContext) override;
cdm::Time GetCurrentWallTime() override;
void OnResolveKeyStatusPromise(uint32_t aPromiseId,
cdm::KeyStatus aKeyStatus) override;
void OnResolveNewSessionPromise(uint32_t aPromiseId, const char* aSessionId,
uint32_t aSessionIdSize) override;
void OnResolvePromise(uint32_t aPromiseId) override;
void OnRejectPromise(uint32_t aPromiseId, cdm::Exception aException,
uint32_t aSystemCode, const char* aErrorMessage,
uint32_t aErrorMessageSize) override;
void OnSessionMessage(const char* aSessionId, uint32_t aSessionIdSize,
cdm::MessageType aMessageType, const char* aMessage,
uint32_t aMessageSize) override;
void OnSessionKeysChange(const char* aSessionId, uint32_t aSessionIdSize,
bool aHasAdditionalUsableKey,
const cdm::KeyInformation* aKeysInfo,
uint32_t aKeysInfoCount) override;
void OnExpirationChange(const char* aSessionId, uint32_t aSessionIdSize,
cdm::Time aNewExpiryTime) override;
void OnSessionClosed(const char* aSessionId,
uint32_t aSessionIdSize) override;
void SendPlatformChallenge(const char* aServiceId, uint32_t aServiceIdSize,
const char* aChallenge,
uint32_t aChallengeSize) override {}
void EnableOutputProtection(uint32_t aDesiredProtectionMask) override {}
void QueryOutputProtectionStatus() override;
void OnDeferredInitializationDone(cdm::StreamType aStreamType,
cdm::Status aDecoderStatus) override {}
void RequestStorageId(uint32_t aVersion) override;
cdm::FileIO* CreateFileIO(cdm::FileIOClient* aClient) override;
void OnInitialized(bool aSuccess) override;
// end cdm::Host_10 specific methods
void GiveBuffer(ipc::Shmem&& aBuffer);
protected:
~ChromiumCDMChild();
bool OnResolveNewSessionPromiseInternal(uint32_t aPromiseId,
const nsACString& aSessionId);
bool IsOnMessageLoopThread();
void ActorDestroy(ActorDestroyReason aReason) override;
ipc::IPCResult RecvGiveBuffer(ipc::Shmem&& aShmem) override;
ipc::IPCResult RecvPurgeShmems() override;
void PurgeShmems();
ipc::IPCResult RecvInit(const bool& aAllowDistinctiveIdentifier,
const bool& aAllowPersistentState,
InitResolver&& aResolver) override;
ipc::IPCResult RecvSetServerCertificate(
const uint32_t& aPromiseId, nsTArray<uint8_t>&& aServerCert) override;
ipc::IPCResult RecvCreateSessionAndGenerateRequest(
const uint32_t& aPromiseId, const uint32_t& aSessionType,
const uint32_t& aInitDataType, nsTArray<uint8_t>&& aInitData) override;
ipc::IPCResult RecvLoadSession(const uint32_t& aPromiseId,
const uint32_t& aSessionType,
const nsACString& aSessionId) override;
ipc::IPCResult RecvUpdateSession(const uint32_t& aPromiseId,
const nsACString& aSessionId,
nsTArray<uint8_t>&& aResponse) override;
ipc::IPCResult RecvCloseSession(const uint32_t& aPromiseId,
const nsACString& aSessionId) override;
ipc::IPCResult RecvRemoveSession(const uint32_t& aPromiseId,
const nsACString& aSessionId) override;
ipc::IPCResult RecvCompleteQueryOutputProtectionStatus(
const bool& aSuccess, const uint32_t& aLinkMask,
const uint32_t& aProtectionMask) override;
ipc::IPCResult RecvGetStatusForPolicy(
const uint32_t& aPromiseId,
const cdm::HdcpVersion& aMinHdcpVersion) override;
ipc::IPCResult RecvDecrypt(const uint32_t& aId,
const CDMInputBuffer& aBuffer) override;
ipc::IPCResult RecvInitializeVideoDecoder(
const CDMVideoDecoderConfig& aConfig) override;
ipc::IPCResult RecvDeinitializeVideoDecoder() override;
ipc::IPCResult RecvResetVideoDecoder() override;
ipc::IPCResult RecvDecryptAndDecodeFrame(
const CDMInputBuffer& aBuffer) override;
ipc::IPCResult RecvDrain() override;
ipc::IPCResult RecvDestroy() override;
void ReturnOutput(WidevineVideoFrame& aFrame);
bool HasShmemOfSize(size_t aSize) const;
template <typename MethodType, typename... ParamType>
void CallMethod(MethodType, ParamType&&...);
template <typename MethodType, typename... ParamType>
void CallOnMessageLoopThread(const char* const, MethodType, ParamType&&...);
GMPContentChild* mPlugin = nullptr;
cdm::ContentDecryptionModule_10* mCDM = nullptr;
typedef SimpleMap<uint64_t> DurationMap;
DurationMap mFrameDurations;
nsTArray<uint32_t> mLoadSessionPromiseIds;
cdm::Size mCodedSize = {0, 0};
nsTArray<ipc::Shmem> mBuffers;
bool mDecoderInitialized = false;
bool mPersistentStateAllowed = false;
bool mDestroyed = false;
nsCString mStorageId;
typedef MozPromise<bool, nsresult, /* IsExclusive = */ true> InitPromise;
// Created when we RecvInit, should be resolved once the CDM is initialized
// or rejected if init fails.
MozPromiseHolder<InitPromise> mInitPromise;
};
} // namespace mozilla::gmp
#endif // ChromiumCDMChild_h_
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