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c136b06326
This change introduces experimental datagram_transport interface and congestion_control interfaces. The goal is to integrate support for datagram transport in DTLS transport and set it up in a similar way we currently setup media_transport. Datagram transport will be injected in peer connection factory the same way media_transport is injected (we might even keep using the same factory which creates both media and datagram transports for now until we decided what to do next). Bug: webrtc:9719 Change-Id: I80e70ce8d3827664ac5f5f7e55b706fe2dd2fbef Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/136782 Commit-Queue: Anton Sukhanov <sukhanov@webrtc.org> Reviewed-by: Steve Anton <steveanton@webrtc.org> Reviewed-by: Bjorn Mellem <mellem@webrtc.org> Cr-Commit-Position: refs/heads/master@{#27943}
67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
/* Copyright 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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// This is EXPERIMENTAL interface for media and datagram transports.
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#ifndef API_CONGESTION_CONTROL_INTERFACE_H_
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#define API_CONGESTION_CONTROL_INTERFACE_H_
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#include <memory>
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#include <string>
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#include <utility>
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#include "api/media_transport_interface.h"
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#include "api/units/data_rate.h"
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namespace webrtc {
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// Defines congestion control feedback interface for media and datagram
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// transports.
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class CongestionControlInterface {
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public:
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virtual ~CongestionControlInterface() = default;
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// Updates allocation limits.
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virtual void SetAllocatedBitrateLimits(
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const MediaTransportAllocatedBitrateLimits& limits) = 0;
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// Sets starting rate.
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virtual void SetTargetBitrateLimits(
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const MediaTransportTargetRateConstraints& target_rate_constraints) = 0;
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// Intended for receive side. AddRttObserver registers an observer to be
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// called for each RTT measurement, typically once per ACK. Before media
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// transport is destructed the observer must be unregistered.
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//
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// TODO(sukhanov): Looks like AddRttObserver and RemoveRttObserver were
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// never implemented for media transport, so keeping noop implementation.
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virtual void AddRttObserver(MediaTransportRttObserver* observer) {}
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virtual void RemoveRttObserver(MediaTransportRttObserver* observer) {}
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// Adds a target bitrate observer. Before media transport is destructed
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// the observer must be unregistered (by calling
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// RemoveTargetTransferRateObserver).
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// A newly registered observer will be called back with the latest recorded
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// target rate, if available.
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virtual void AddTargetTransferRateObserver(
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TargetTransferRateObserver* observer) = 0;
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// Removes an existing |observer| from observers. If observer was never
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// registered, an error is logged and method does nothing.
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virtual void RemoveTargetTransferRateObserver(
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TargetTransferRateObserver* observer) = 0;
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// Returns the last known target transfer rate as reported to the above
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// observers.
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virtual absl::optional<TargetTransferRate> GetLatestTargetTransferRate() = 0;
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};
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} // namespace webrtc
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#endif // API_CONGESTION_CONTROL_INTERFACE_H_
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