GMPVideoDecoderChild.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 GMPVideoDecoderChild_h_

#define GMPVideoDecoderChild_h_

#include "nsString.h"

#include "mozilla/gmp/PGMPVideoDecoderChild.h"

#include "gmp-video-decode.h"

#include "GMPSharedMemManager.h"

#include "GMPVideoHost.h"

#include "mozilla/gmp/GMPTypes.h"

namespace mozilla::gmp {

class GMPContentChild;

class GMPVideoDecoderChild final : public PGMPVideoDecoderChild,

                                   public GMPVideoDecoderCallback,

                                   public GMPSharedMemManager {

  friend class PGMPVideoDecoderChild;

 public:

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

  // implementations in PGMPVideoDecoderChild.

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(GMPVideoDecoderChild, final);

  explicit GMPVideoDecoderChild(GMPContentChild* aPlugin);

  void Init(GMPVideoDecoder* aDecoder);

  GMPVideoHostImpl& Host();

  // GMPVideoDecoderCallback

  void Decoded(GMPVideoi420Frame* decodedFrame) override;

  void ReceivedDecodedReferenceFrame(const uint64_t pictureId) override;

  void ReceivedDecodedFrame(const uint64_t pictureId) override;

  void InputDataExhausted() override;

  void DrainComplete() override;

  void ResetComplete() override;

  void Error(GMPErr aError) override;

  // GMPSharedMemManager

  bool MgrIsOnOwningThread() const override;

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

 private:

  virtual ~GMPVideoDecoderChild();

  // PGMPVideoDecoderChild

  mozilla::ipc::IPCResult RecvInitDecode(const GMPVideoCodec& aCodecSettings,

                                         nsTArray<uint8_t>&& aCodecSpecific,

                                         const int32_t& aCoreCount);

  mozilla::ipc::IPCResult RecvGiveShmem(ipc::Shmem&& aOutputShmem);

  mozilla::ipc::IPCResult RecvDecode(

      const GMPVideoEncodedFrameData& aInputFrame, ipc::Shmem&& aInputShmem,

      const bool& aMissingFrames, nsTArray<uint8_t>&& aCodecSpecificInfo,

      const int64_t& aRenderTimeMs);

  mozilla::ipc::IPCResult RecvReset();

  mozilla::ipc::IPCResult RecvDrain();

  void ActorDestroy(ActorDestroyReason why) override;

  GMPContentChild* mPlugin;

  GMPVideoDecoder* mVideoDecoder;

  GMPVideoHostImpl mVideoHost;

};

}  // namespace mozilla::gmp

#endif  // GMPVideoDecoderChild_h_