text: /*
   *  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 CALL_CALL_CONFIG_H_
  #define CALL_CALL_CONFIG_H_
  
  #include "api/fec_controller.h"
  #include "api/neteq/neteq_factory.h"
  #include "api/network_state_predictor.h"
  #include "api/rtc_error.h"
  #include "api/task_queue/task_queue_factory.h"
  #include "api/transport/bitrate_settings.h"
  #include "api/transport/network_control.h"
  #include "api/transport/webrtc_key_value_config.h"
  #include "call/audio_state.h"
  
  namespace webrtc {
  
  class AudioProcessing;
  class RtcEventLog;
  
  struct CallConfig {
    explicit CallConfig(RtcEventLog* event_log);
    CallConfig(const CallConfig&);
    ~CallConfig();
  
    RTC_DEPRECATED static constexpr int kDefaultStartBitrateBps = 300000;
  
    // Bitrate config used until valid bitrate estimates are calculated. Also
    // used to cap total bitrate used. This comes from the remote connection.
    BitrateConstraints bitrate_config;
  
    // AudioState which is possibly shared between multiple calls.
    rtc::scoped_refptr<AudioState> audio_state;
  
    // Audio Processing Module to be used in this call.
    AudioProcessing* audio_processing = nullptr;
  
    // RtcEventLog to use for this call. Required.
    // Use webrtc::RtcEventLog::CreateNull() for a null implementation.
    RtcEventLog* event_log = nullptr;
  
    // FecController to use for this call.
    FecControllerFactoryInterface* fec_controller_factory = nullptr;
  
    // Task Queue Factory to be used in this call. Required.
    TaskQueueFactory* task_queue_factory = nullptr;
  
    // NetworkStatePredictor to use for this call.
    NetworkStatePredictorFactoryInterface* network_state_predictor_factory =
        nullptr;
  
    // Network controller factory to use for this call.
    NetworkControllerFactoryInterface* network_controller_factory = nullptr;
  
    // NetEq factory to use for this call.
    NetEqFactory* neteq_factory = nullptr;
  
    // Key-value mapping of internal configurations to apply,
    // e.g. field trials.
    const WebRtcKeyValueConfig* trials = nullptr;
  };
  
  }  // namespace webrtc
  
  #endif  // CALL_CALL_CONFIG_H_
  