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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 MODULES_CONGESTION_CONTROLLER_INCLUDE_NETWORK_CHANGED_OBSERVER_H_
#define MODULES_CONGESTION_CONTROLLER_INCLUDE_NETWORK_CHANGED_OBSERVER_H_
#include <stdint.h>
namespace webrtc {
// Note: This interface will be deprecated in favor of the
// TargetTransferRateObserver interface. The new interface provides more
// information about the network connection and uses structs to make it easier
// to add fields.
// Observer class for bitrate changes announced due to change in bandwidth
// estimate or due to that the send pacer is full. Fraction loss and rtt is
// also part of this callback to allow the observer to optimize its settings
// for different types of network environments. The bitrate does not include
// packet headers and is measured in bits per second.
// TODO(srte): Deprecate and remove this class when SendSideCongestionController
// is no longer using this as part of our public API.
class NetworkChangedObserver {
public:
virtual void OnNetworkChanged(uint32_t bitrate_bps,
uint8_t fraction_loss, // 0 - 255.
int64_t rtt_ms,
int64_t probing_interval_ms) = 0;
protected:
virtual ~NetworkChangedObserver() {}
};
} // namespace webrtc
#endif // MODULES_CONGESTION_CONTROLLER_INCLUDE_NETWORK_CHANGED_OBSERVER_H_