GMPVideoDecoderParent.h

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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 GMPVideoDecoderParent_h_

#define GMPVideoDecoderParent_h_

#include "mozilla/RefPtr.h"

#include "gmp-video-decode.h"

#include "mozilla/gmp/PGMPVideoDecoderParent.h"

#include "GMPMessageUtils.h"

#include "GMPSharedMemManager.h"

#include "GMPUtils.h"

#include "GMPVideoHost.h"

#include "GMPVideoDecoderProxy.h"

#include "VideoUtils.h"

#include "GMPCrashHelperHolder.h"

namespace mozilla::gmp {

class GMPContentParent;

class GMPVideoDecoderParent final : public PGMPVideoDecoderParent,

                                    public GMPVideoDecoderProxy,

                                    public GMPSharedMemManager,

                                    public GMPCrashHelperHolder {

  friend class PGMPVideoDecoderParent;

 public:

  // Mark AddRef and Release as `final`, as they overload pure virtual

  // implementations in PGMPVideoDecoderParent.

  NS_INLINE_DECL_REFCOUNTING(GMPVideoDecoderParent, final)

  explicit GMPVideoDecoderParent(GMPContentParent* aPlugin);

  GMPVideoHostImpl& Host();

  nsresult Shutdown();

  // GMPVideoDecoder

  void Close() override;

  nsresult InitDecode(const GMPVideoCodec& aCodecSettings,

                      const nsTArray<uint8_t>& aCodecSpecific,

                      GMPVideoDecoderCallbackProxy* aCallback,

                      int32_t aCoreCount) override;

  nsresult Decode(GMPUniquePtr<GMPVideoEncodedFrame> aInputFrame,

                  bool aMissingFrames,

                  const nsTArray<uint8_t>& aCodecSpecificInfo,

                  int64_t aRenderTimeMs = -1) override;

  nsresult Reset() override;

  nsresult Drain() override;

  uint32_t GetPluginId() const override { return mPluginId; }

  GMPPluginType GetPluginType() const override { return mPluginType; }

  nsCString GetDisplayName() const override;

  // GMPSharedMemManager

  bool MgrAllocShmem(size_t aSize, Shmem* aMem) override {

    return AllocShmem(aSize, aMem);

  void MgrDeallocShmem(Shmem& aMem) override { DeallocShmem(aMem); }

 protected:

  bool MgrIsOnOwningThread() const override;

 private:

  ~GMPVideoDecoderParent();

  // PGMPVideoDecoderParent

  void ActorDestroy(ActorDestroyReason aWhy) override;

  mozilla::ipc::IPCResult RecvReturnShmem(ipc::Shmem&& aInputShmem) override;

  mozilla::ipc::IPCResult RecvDecodedShmem(

      const GMPVideoi420FrameData& aDecodedFrame,

      ipc::Shmem&& aDecodedShmem) override;

  mozilla::ipc::IPCResult RecvDecodedData(

      const GMPVideoi420FrameData& aDecodedFrame,

      nsTArray<uint8_t>&& aDecodedArray) override;

  mozilla::ipc::IPCResult RecvReceivedDecodedReferenceFrame(

      const uint64_t& aPictureId) override;

  mozilla::ipc::IPCResult RecvReceivedDecodedFrame(

      const uint64_t& aPictureId) override;

  mozilla::ipc::IPCResult RecvInputDataExhausted() override;

  mozilla::ipc::IPCResult RecvDrainComplete() override;

  mozilla::ipc::IPCResult RecvResetComplete() override;

  mozilla::ipc::IPCResult RecvError(const GMPErr& aError) override;

  mozilla::ipc::IPCResult RecvShutdown() override;

  bool HandleDecoded(const GMPVideoi420FrameData& aDecodedFrame,

                     size_t aDecodedSize);

  void UnblockResetAndDrain();

  void CancelResetCompleteTimeout();

  size_t mDecodedShmemSize = 0;

  bool mIsOpen;

  bool mShuttingDown;

  bool mActorDestroyed;

  bool mIsAwaitingResetComplete;

  bool mIsAwaitingDrainComplete;

  RefPtr<GMPContentParent> mPlugin;

  RefPtr<GMPVideoDecoderCallbackProxy> mCallback;

  GMPVideoHostImpl mVideoHost;

  const uint32_t mPluginId;

  GMPPluginType mPluginType = GMPPluginType::Unknown;

  int32_t mFrameCount;

  RefPtr<SimpleTimer> mResetCompleteTimeout;

};

}  // namespace mozilla::gmp

#endif  // GMPVideoDecoderParent_h_