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599d59237a
Bug: webrtc:10263 Change-Id: I85b992eff7d1e7ed66ead4745f346ddad2977e8e Reviewed-on: https://webrtc-review.googlesource.com/c/120800 Commit-Queue: Johannes Kron <kron@webrtc.org> Reviewed-by: Sebastian Jansson <srte@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/master@{#26752}
94 lines
3.6 KiB
C++
94 lines
3.6 KiB
C++
/*
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* Copyright (c) 2015 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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#ifndef MODULES_REMOTE_BITRATE_ESTIMATOR_REMOTE_ESTIMATOR_PROXY_H_
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#define MODULES_REMOTE_BITRATE_ESTIMATOR_REMOTE_ESTIMATOR_PROXY_H_
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#include <map>
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#include <vector>
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#include "modules/include/module_common_types.h"
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#include "modules/remote_bitrate_estimator/include/remote_bitrate_estimator.h"
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#include "rtc_base/critical_section.h"
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namespace webrtc {
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class Clock;
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class PacketRouter;
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namespace rtcp {
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class TransportFeedback;
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}
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// Class used when send-side BWE is enabled: This proxy is instantiated on the
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// receive side. It buffers a number of receive timestamps and then sends
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// transport feedback messages back too the send side.
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class RemoteEstimatorProxy : public RemoteBitrateEstimator {
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public:
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static const int kMinSendIntervalMs;
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static const int kMaxSendIntervalMs;
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static const int kDefaultSendIntervalMs;
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static const int kBackWindowMs;
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RemoteEstimatorProxy(Clock* clock,
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TransportFeedbackSenderInterface* feedback_sender);
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~RemoteEstimatorProxy() override;
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void IncomingPacket(int64_t arrival_time_ms,
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size_t payload_size,
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const RTPHeader& header) override;
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void RemoveStream(uint32_t ssrc) override {}
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bool LatestEstimate(std::vector<unsigned int>* ssrcs,
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unsigned int* bitrate_bps) const override;
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void OnRttUpdate(int64_t avg_rtt_ms, int64_t max_rtt_ms) override {}
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void SetMinBitrate(int min_bitrate_bps) override {}
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int64_t TimeUntilNextProcess() override;
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void Process() override;
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void OnBitrateChanged(int bitrate);
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void SetSendFeedbackOnRequestOnly(bool send_feedback_on_request_only);
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private:
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static const int kMaxNumberOfPackets;
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void OnPacketArrival(uint16_t sequence_number,
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int64_t arrival_time,
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absl::optional<FeedbackRequest> feedback_request)
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RTC_EXCLUSIVE_LOCKS_REQUIRED(&lock_);
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void SendPeriodicFeedbacks() RTC_EXCLUSIVE_LOCKS_REQUIRED(&lock_);
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void SendFeedbackOnRequest(int64_t sequence_number,
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const FeedbackRequest& feedback_request)
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RTC_EXCLUSIVE_LOCKS_REQUIRED(&lock_);
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static int64_t BuildFeedbackPacket(
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uint8_t feedback_packet_count,
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uint32_t media_ssrc,
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int64_t base_sequence_number,
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std::map<int64_t, int64_t>::const_iterator
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begin_iterator, // |begin_iterator| is inclusive.
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std::map<int64_t, int64_t>::const_iterator
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end_iterator, // |end_iterator| is exclusive.
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rtcp::TransportFeedback* feedback_packet);
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Clock* const clock_;
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TransportFeedbackSenderInterface* const feedback_sender_;
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int64_t last_process_time_ms_;
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rtc::CriticalSection lock_;
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uint32_t media_ssrc_ RTC_GUARDED_BY(&lock_);
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uint8_t feedback_packet_count_ RTC_GUARDED_BY(&lock_);
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SequenceNumberUnwrapper unwrapper_ RTC_GUARDED_BY(&lock_);
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int64_t window_start_seq_ RTC_GUARDED_BY(&lock_);
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// Map unwrapped seq -> time.
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std::map<int64_t, int64_t> packet_arrival_times_ RTC_GUARDED_BY(&lock_);
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int64_t send_interval_ms_ RTC_GUARDED_BY(&lock_);
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bool send_feedback_on_request_only_ RTC_GUARDED_BY(&lock_);
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};
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} // namespace webrtc
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#endif // MODULES_REMOTE_BITRATE_ESTIMATOR_REMOTE_ESTIMATOR_PROXY_H_
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