GMPVideoHost.h - mozsearch

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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 GMPVideoHost_h_

#define GMPVideoHost_h_

#include "gmp-video-host.h"

#include "gmp-video-plane.h"

#include "gmp-video-frame.h"

#include "nsTArray.h"

namespace mozilla::gmp {

class GMPSharedMemManager;

class GMPVideoEncodedFrameImpl;

class GMPVideoi420FrameImpl;

class GMPVideoHostImpl : public GMPVideoHost {

 public:

  explicit GMPVideoHostImpl(GMPSharedMemManager* aSharedMemMgr);

  virtual ~GMPVideoHostImpl();

  // Used for shared memory allocation and deallocation.

  GMPSharedMemManager* SharedMemMgr();

  void DoneWithAPI();

  void ActorDestroyed();

  void EncodedFrameCreated(GMPVideoEncodedFrameImpl* aEncodedFrame);

  void EncodedFrameDestroyed(GMPVideoEncodedFrameImpl* aFrame);

  void DecodedFrameCreated(GMPVideoi420FrameImpl* aDecodedFrame);

  void DecodedFrameDestroyed(GMPVideoi420FrameImpl* aFrame);

  // GMPVideoHost

  GMPErr CreateFrame(GMPVideoFrameFormat aFormat,

                     GMPVideoFrame** aFrame) override;

  GMPErr CreatePlane(GMPPlane** aPlane) override;

 private:

  // All shared memory allocations have to be made by an IPDL actor.

  // This is a reference to the owning actor. If this reference is

  // null then the actor has died and all allocations must fail.

  GMPSharedMemManager* mSharedMemMgr;

  // We track all of these things because they need to handle further

  // allocations through us and we need to notify them when they

  // can't use us any more.

  nsTArray<GMPVideoEncodedFrameImpl*> mEncodedFrames;

  nsTArray<GMPVideoi420FrameImpl*> mDecodedFrames;

};

}  // namespace mozilla::gmp

#endif  // GMPVideoHost_h_