GMPVideoDecoderProxy.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 GMPVideoDecoderProxy_h_

#define GMPVideoDecoderProxy_h_

#include "nsTArray.h"

#include "gmp-video-decode.h"

#include "gmp-video-frame-i420.h"

#include "gmp-video-frame-encoded.h"

#include "GMPCallbackBase.h"

#include "GMPNativeTypes.h"

#include "GMPUtils.h"

class GMPVideoDecoderCallbackProxy : public GMPCallbackBase,

                                     public GMPVideoDecoderCallback {

 public:

  virtual ~GMPVideoDecoderCallbackProxy() = default;

};

// A proxy to GMPVideoDecoder in the child process.

// GMPVideoDecoderParent exposes this to users the GMP.

// This enables Gecko to pass nsTArrays to the child GMP and avoid

// an extra copy when doing so.

// The consumer must call Close() when done with the codec, or when

// Terminated() is called by the GMP plugin indicating an abnormal shutdown

// of the underlying plugin.  After calling Close(), the consumer must

// not access this again.

// This interface is not thread-safe and must only be used from GMPThread.

class GMPVideoDecoderProxy {

 public:

  virtual nsresult InitDecode(const GMPVideoCodec& aCodecSettings,

                              const nsTArray<uint8_t>& aCodecSpecific,

                              GMPVideoDecoderCallbackProxy* aCallback,

                              int32_t aCoreCount) = 0;

  virtual nsresult Decode(

      mozilla::GMPUniquePtr<GMPVideoEncodedFrame> aInputFrame,

      bool aMissingFrames, const nsTArray<uint8_t>& aCodecSpecificInfo,

      int64_t aRenderTimeMs = -1) = 0;

  virtual nsresult Reset() = 0;

  virtual nsresult Drain() = 0;

  virtual uint32_t GetPluginId() const = 0;

  virtual GMPPluginType GetPluginType() const = 0;

  // Call to tell GMP/plugin the consumer will no longer use this

  // interface/codec.

  virtual void Close() = 0;

  virtual nsCString GetDisplayName() const = 0;

};

#endif