mirror of
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66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
/*
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* Copyright (c) 2012 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 class estimates the incoming available bandwidth.
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#ifndef MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMATOR_H_
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#define MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMATOR_H_
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#include <cstdint>
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#include <vector>
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#include "api/units/data_rate.h"
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#include "api/units/time_delta.h"
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#include "clock.h"
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#include "module_common_types.h"
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#include "rtp_packet_received.h"
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namespace webrtc {
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class Clock;
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// RemoteBitrateObserver is used to signal changes in bitrate estimates for
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// the incoming streams.
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class RemoteBitrateObserver {
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public:
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// Called when a receive channel group has a new bitrate estimate for the
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// incoming streams.
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virtual void OnReceiveBitrateChanged(const std::vector<uint32_t>& ssrcs,
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uint32_t bitrate) = 0;
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virtual ~RemoteBitrateObserver() {}
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};
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class RemoteBitrateEstimator : public CallStatsObserver {
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public:
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~RemoteBitrateEstimator() override {}
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// Called for each incoming packet. Updates the incoming payload bitrate
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// estimate and the over-use detector. If an over-use is detected the
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// remote bitrate estimate will be updated.
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virtual void IncomingPacket(const RtpPacketReceived& rtp_packet) = 0;
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// Removes all data for `ssrc`.
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virtual void RemoveStream(uint32_t ssrc) = 0;
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// Returns latest estimate or DataRate::Zero() if estimation is unavailable.
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virtual DataRate LatestEstimate() const = 0;
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virtual TimeDelta Process() = 0;
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protected:
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static constexpr TimeDelta kProcessInterval = TimeDelta::Millis(500);
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static constexpr TimeDelta kStreamTimeOut = TimeDelta::Seconds(2);
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};
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} // namespace webrtc
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#endif // MODULES_REMOTE_BITRATE_ESTIMATOR_INCLUDE_REMOTE_BITRATE_ESTIMATOR_H_
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