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65f17ca6b4
And move related files into api/transport/ and api/transport/media/. The moved files are unchanged, except that congestion_control_interface.h and datagram_transport_interface.h no longer include media_transport_interface.h, instead, they forward declare the few MediaTransport* types they reference. Bug: webrtc:8733 Change-Id: I4f4000d0d111f10d15a54c99af27ec26c46ae652 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/152482 Commit-Queue: Niels Moller <nisse@webrtc.org> Reviewed-by: Bjorn Mellem <mellem@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#29178}
75 lines
2.9 KiB
C++
75 lines
2.9 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_TRANSPORT_CONGESTION_CONTROL_INTERFACE_H_
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#define API_TRANSPORT_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/transport/network_control.h"
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#include "api/units/data_rate.h"
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namespace webrtc {
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// TODO(nisse): Defined together with MediaTransportInterface. But we should use
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// types that aren't tied to media, so that MediaTransportInterface can depend
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// on CongestionControlInterface, but not the other way around.
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// api/transport/network_control.h may be a reasonable place.
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class MediaTransportRttObserver;
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struct MediaTransportAllocatedBitrateLimits;
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struct MediaTransportTargetRateConstraints;
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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_TRANSPORT_CONGESTION_CONTROL_INTERFACE_H_
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