GMPVideoEncoderProxy.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 GMPVideoEncoderProxy_h_

#define GMPVideoEncoderProxy_h_

#include "nsTArray.h"

#include "gmp-video-encode.h"

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

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

#include "GMPCallbackBase.h"

#include "GMPUtils.h"

class GMPVideoEncoderCallbackProxy : public GMPCallbackBase {

 public:

  virtual ~GMPVideoEncoderCallbackProxy() = default;

  virtual void Encoded(GMPVideoEncodedFrame* aEncodedFrame,

                       const nsTArray<uint8_t>& aCodecSpecificInfo) = 0;

  virtual void Error(GMPErr aError) = 0;

};

// A proxy to GMPVideoEncoder in the child process.

// GMPVideoEncoderParent 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 GMPVideoEncoderProxy {

 public:

  virtual GMPErr InitEncode(const GMPVideoCodec& aCodecSettings,

                            const nsTArray<uint8_t>& aCodecSpecific,

                            GMPVideoEncoderCallbackProxy* aCallback,

                            int32_t aNumberOfCores,

                            uint32_t aMaxPayloadSize) = 0;

  virtual GMPErr Encode(mozilla::GMPUniquePtr<GMPVideoi420Frame> aInputFrame,

                        const nsTArray<uint8_t>& aCodecSpecificInfo,

                        const nsTArray<GMPVideoFrameType>& aFrameTypes) = 0;

  virtual GMPErr SetChannelParameters(uint32_t aPacketLoss, uint32_t aRTT) = 0;

  virtual GMPErr SetRates(uint32_t aNewBitRate, uint32_t aFrameRate) = 0;

  virtual GMPErr SetPeriodicKeyFrames(bool aEnable) = 0;

  virtual uint32_t GetPluginId() const = 0;

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

  // interface/codec.

  virtual void Close() = 0;

};

#endif  // GMPVideoEncoderProxy_h_