GMPVideoEncoderParent.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 GMPVideoEncoderParent_h_

#define GMPVideoEncoderParent_h_

#include "mozilla/RefPtr.h"

#include "gmp-video-encode.h"

#include "mozilla/gmp/PGMPVideoEncoderParent.h"

#include "GMPMessageUtils.h"

#include "GMPSharedMemManager.h"

#include "GMPUtils.h"

#include "GMPVideoHost.h"

#include "GMPVideoEncoderProxy.h"

#include "GMPCrashHelperHolder.h"

namespace mozilla::gmp {

class GMPContentParent;

class GMPVideoEncoderParent final : public GMPVideoEncoderProxy,

                                    public PGMPVideoEncoderParent,

                                    public GMPSharedMemManager,

                                    public GMPCrashHelperHolder {

  friend class PGMPVideoEncoderParent;

 public:

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

  // implementations in PGMPVideoEncoderParent.

  NS_INLINE_DECL_REFCOUNTING(GMPVideoEncoderParent, final)

  explicit GMPVideoEncoderParent(GMPContentParent* aPlugin);

  GMPVideoHostImpl& Host();

  void Shutdown();

  // GMPVideoEncoderProxy

  void Close() override;

  GMPErr InitEncode(const GMPVideoCodec& aCodecSettings,

                    const nsTArray<uint8_t>& aCodecSpecific,

                    GMPVideoEncoderCallbackProxy* aCallback,

                    int32_t aNumberOfCores, uint32_t aMaxPayloadSize) override;

  GMPErr Encode(GMPUniquePtr<GMPVideoi420Frame> aInputFrame,

                const nsTArray<uint8_t>& aCodecSpecificInfo,

                const nsTArray<GMPVideoFrameType>& aFrameTypes) override;

  GMPErr SetChannelParameters(uint32_t aPacketLoss, uint32_t aRTT) override;

  GMPErr SetRates(uint32_t aNewBitRate, uint32_t aFrameRate) override;

  GMPErr SetPeriodicKeyFrames(bool aEnable) override;

  uint32_t GetPluginId() const override { return mPluginId; }

  // 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:

  virtual ~GMPVideoEncoderParent() = default;

  // PGMPVideoEncoderParent

  void ActorDestroy(ActorDestroyReason aWhy) override;

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

  mozilla::ipc::IPCResult RecvEncodedShmem(

      const GMPVideoEncodedFrameData& aEncodedFrame, ipc::Shmem&& aEncodedShmem,

      nsTArray<uint8_t>&& aCodecSpecificInfo) override;

  mozilla::ipc::IPCResult RecvEncodedData(

      const GMPVideoEncodedFrameData& aEncodedFrame,

      nsTArray<uint8_t>&& aEncodedData,

      nsTArray<uint8_t>&& aCodecSpecificInfo) override;

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

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

  size_t mEncodedShmemSize = 0;

  bool mIsOpen;

  bool mShuttingDown;

  bool mActorDestroyed;

  RefPtr<GMPContentParent> mPlugin;

  RefPtr<GMPVideoEncoderCallbackProxy> mCallback;

  GMPVideoHostImpl mVideoHost;

  const uint32_t mPluginId;

};

}  // namespace mozilla::gmp

#endif  // GMPVideoEncoderParent_h_