GMPVideoEncoderChild.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 GMPVideoEncoderChild_h_

#define GMPVideoEncoderChild_h_

#include "nsString.h"

#include "mozilla/gmp/PGMPVideoEncoderChild.h"

#include "gmp-video-encode.h"

#include "GMPSharedMemManager.h"

#include "GMPVideoHost.h"

namespace mozilla::gmp {

class GMPContentChild;

class GMPVideoEncoderChild : public PGMPVideoEncoderChild,

                             public GMPVideoEncoderCallback,

                             public GMPSharedMemManager {

  friend class PGMPVideoEncoderChild;

 public:

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

  // implementations in PGMPVideoEncoderChild.

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(GMPVideoEncoderChild, final);

  explicit GMPVideoEncoderChild(GMPContentChild* aPlugin);

  void Init(GMPVideoEncoder* aEncoder);

  GMPVideoHostImpl& Host();

  // GMPVideoEncoderCallback

  void Encoded(GMPVideoEncodedFrame* aEncodedFrame,

               const uint8_t* aCodecSpecificInfo,

               uint32_t aCodecSpecificInfoLength) override;

  void Error(GMPErr aError) override;

  // GMPSharedMemManager

  bool Alloc(size_t aSize, Shmem* aMem) override;

  void Dealloc(Shmem&& aMem) override;

 private:

  virtual ~GMPVideoEncoderChild();

  // PGMPVideoEncoderChild

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

                                         nsTArray<uint8_t>&& aCodecSpecific,

                                         const int32_t& aNumberOfCores,

                                         const uint32_t& aMaxPayloadSize);

  mozilla::ipc::IPCResult RecvEncode(const GMPVideoi420FrameData& aInputFrame,

                                     nsTArray<uint8_t>&& aCodecSpecificInfo,

                                     nsTArray<GMPVideoFrameType>&& aFrameTypes);

  mozilla::ipc::IPCResult RecvChildShmemForPool(Shmem&& aEncodedBuffer);

  mozilla::ipc::IPCResult RecvSetChannelParameters(const uint32_t& aPacketLoss,

                                                   const uint32_t& aRTT);

  mozilla::ipc::IPCResult RecvSetRates(const uint32_t& aNewBitRate,

                                       const uint32_t& aFrameRate);

  mozilla::ipc::IPCResult RecvSetPeriodicKeyFrames(const bool& aEnable);

  mozilla::ipc::IPCResult RecvEncodingComplete();

  GMPContentChild* mPlugin;

  GMPVideoEncoder* mVideoEncoder;

  GMPVideoHostImpl mVideoHost;

  // Non-zero when a GMP is blocked spinning the IPC message loop while

  // waiting on an NeedShmem to complete.

  int mNeedShmemIntrCount;

  bool mPendingEncodeComplete;

};

}  // namespace mozilla::gmp

#endif  // GMPVideoEncoderChild_h_