video_stream_encoder_settings.h

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/*

 *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.

 *  Use of this source code is governed by a BSD-style license

 *  that can be found in the LICENSE file in the root of the source

 *  tree. An additional intellectual property rights grant can be found

 *  in the file PATENTS.  All contributing project authors may

 *  be found in the AUTHORS file in the root of the source tree.

*/

#ifndef API_VIDEO_VIDEO_STREAM_ENCODER_SETTINGS_H_

#define API_VIDEO_VIDEO_STREAM_ENCODER_SETTINGS_H_

#include "api/video/video_bitrate_allocator_factory.h"

#include "api/video_codecs/sdp_video_format.h"

#include "api/video_codecs/video_encoder.h"

#include "api/video_codecs/video_encoder_factory.h"

namespace webrtc {

class EncoderSwitchRequestCallback {

 public:

  virtual ~EncoderSwitchRequestCallback() {}

  // Requests switch to next negotiated encoder.

  virtual void RequestEncoderFallback() = 0;

  // Requests switch to a specific encoder. If the encoder is not available and

  // `allow_default_fallback` is `true` the default fallback is invoked.

  virtual void RequestEncoderSwitch(const SdpVideoFormat& format,

                                    bool allow_default_fallback) = 0;

};

struct VideoStreamEncoderSettings {

  explicit VideoStreamEncoderSettings(

      const VideoEncoder::Capabilities& capabilities)

      : capabilities(capabilities) {}

  // Enables the new method to estimate the cpu load from encoding, used for

  // cpu adaptation.

  bool experiment_cpu_load_estimator = false;

  // Ownership stays with WebrtcVideoEngine (delegated from PeerConnection).

  VideoEncoderFactory* encoder_factory = nullptr;

  // Requests the WebRtcVideoChannel to perform a codec switch.

  EncoderSwitchRequestCallback* encoder_switch_request_callback = nullptr;

  // Ownership stays with WebrtcVideoEngine (delegated from PeerConnection).

  VideoBitrateAllocatorFactory* bitrate_allocator_factory = nullptr;

  // Negotiated capabilities which the VideoEncoder may expect the other

  // side to use.

  VideoEncoder::Capabilities capabilities;

};

}  // namespace webrtc

#endif  // API_VIDEO_VIDEO_STREAM_ENCODER_SETTINGS_H_