webrtc/modules/remote_bitrate_estimator/remote_estimator_proxy.h
Danil Chapovalov 599df85233 Resolve cyclic dependency in remote bitrate estimator
Access SendTransportFeedback function through new interface to break rbe -> pacing -> rbe cycle
Depend on rtp_rtcp_format source set to break rbe -> rtp_rtcp -> rbe cycle.

Bug: webrtc:6828
Change-Id: Iae1c463a71871c0055485e2eca9b2235d770afec
Reviewed-on: https://webrtc-review.googlesource.com/1620
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19947}
2017-09-25 15:10:14 +00:00

78 lines
2.7 KiB
C++

/*
* Copyright (c) 2015 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_REMOTE_BITRATE_ESTIMATOR_REMOTE_ESTIMATOR_PROXY_H_
#define MODULES_REMOTE_BITRATE_ESTIMATOR_REMOTE_ESTIMATOR_PROXY_H_
#include <map>
#include <vector>
#include "modules/include/module_common_types.h"
#include "modules/remote_bitrate_estimator/include/remote_bitrate_estimator.h"
#include "rtc_base/criticalsection.h"
namespace webrtc {
class Clock;
class PacketRouter;
namespace rtcp {
class TransportFeedback;
}
// Class used when send-side BWE is enabled: This proxy is instantiated on the
// receive side. It buffers a number of receive timestamps and then sends
// transport feedback messages back too the send side.
class RemoteEstimatorProxy : public RemoteBitrateEstimator {
public:
RemoteEstimatorProxy(const Clock* clock,
TransportFeedbackSenderInterface* feedback_sender);
virtual ~RemoteEstimatorProxy();
void IncomingPacket(int64_t arrival_time_ms,
size_t payload_size,
const RTPHeader& header) override;
void RemoveStream(uint32_t ssrc) override {}
bool LatestEstimate(std::vector<unsigned int>* ssrcs,
unsigned int* bitrate_bps) const override;
void OnRttUpdate(int64_t avg_rtt_ms, int64_t max_rtt_ms) override {}
void SetMinBitrate(int min_bitrate_bps) override {}
int64_t TimeUntilNextProcess() override;
void Process() override;
void OnBitrateChanged(int bitrate);
static const int kMinSendIntervalMs;
static const int kMaxSendIntervalMs;
static const int kDefaultSendIntervalMs;
static const int kBackWindowMs;
private:
void OnPacketArrival(uint16_t sequence_number, int64_t arrival_time)
RTC_EXCLUSIVE_LOCKS_REQUIRED(&lock_);
bool BuildFeedbackPacket(rtcp::TransportFeedback* feedback_packet);
const Clock* const clock_;
TransportFeedbackSenderInterface* const feedback_sender_;
int64_t last_process_time_ms_;
rtc::CriticalSection lock_;
uint32_t media_ssrc_ RTC_GUARDED_BY(&lock_);
uint8_t feedback_sequence_ RTC_GUARDED_BY(&lock_);
SequenceNumberUnwrapper unwrapper_ RTC_GUARDED_BY(&lock_);
int64_t window_start_seq_ RTC_GUARDED_BY(&lock_);
// Map unwrapped seq -> time.
std::map<int64_t, int64_t> packet_arrival_times_ RTC_GUARDED_BY(&lock_);
int64_t send_interval_ms_ RTC_GUARDED_BY(&lock_);
};
} // namespace webrtc
#endif // MODULES_REMOTE_BITRATE_ESTIMATOR_REMOTE_ESTIMATOR_PROXY_H_