webrtc_m130/modules/pacing/alr_detector.cc
Sebastian Jansson ea86bb74fc Revert "Revert "Revert "Reland "Moved congestion controller to task queue.""""
This reverts commit 65792c5a5c542201f7b9feefded505842692e6ed.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> Revert "Revert "Reland "Moved congestion controller to task queue."""
> 
> This reverts commit 4e849f6925b2ac44b0957a228d7131fc391fca54.
> 
> Reason for revert: <INSERT REASONING HERE>
> 
> Original change's description:
> > Revert "Reland "Moved congestion controller to task queue.""
> > 
> > This reverts commit 57daeb7ac7f3d80992905b53fea500953fcfd793.
> > 
> > Reason for revert: Cause increased congestion and deadlocks in downstream project
> > 
> > Original change's description:
> > > Reland "Moved congestion controller to task queue."
> > > 
> > > This is a reland of 0cbcba7ea0dced1a7f353c64d6cf91d46ccb29f9.
> > > 
> > > Original change's description:
> > > > Moved congestion controller to task queue.
> > > > 
> > > > The goal of this work is to make it easier to experiment with the
> > > > bandwidth estimation implementation. For this reason network control
> > > > functionality is moved from SendSideCongestionController(SSCC),
> > > > PacedSender and BitrateController to the newly created
> > > > GoogCcNetworkController which implements the newly created
> > > > NetworkControllerInterface. This allows the implementation to be
> > > > replaced at runtime in the future.
> > > > 
> > > > This is the first part of a split of a larger CL, see:
> > > > https://webrtc-review.googlesource.com/c/src/+/39788/8
> > > > For further explanations.
> > > > 
> > > > Bug: webrtc:8415
> > > > Change-Id: I770189c04cc31b313bd4e57821acff55fbcb1ad3
> > > > Reviewed-on: https://webrtc-review.googlesource.com/43840
> > > > Commit-Queue: Sebastian Jansson <srte@webrtc.org>
> > > > Reviewed-by: Björn Terelius <terelius@webrtc.org>
> > > > Reviewed-by: Stefan Holmer <stefan@webrtc.org>
> > > > Cr-Commit-Position: refs/heads/master@{#21868}
> > > 
> > > Bug: webrtc:8415
> > > Change-Id: I1d1756a30deed5b421b1c91c1918a13b6bb455da
> > > Reviewed-on: https://webrtc-review.googlesource.com/48000
> > > Reviewed-by: Stefan Holmer <stefan@webrtc.org>
> > > Commit-Queue: Sebastian Jansson <srte@webrtc.org>
> > > Cr-Commit-Position: refs/heads/master@{#21899}
> > 
> > TBR=terelius@webrtc.org,stefan@webrtc.org,srte@webrtc.org
> > 
> > # Not skipping CQ checks because original CL landed > 1 day ago.
> > 
> > Bug: webrtc:8415
> > Change-Id: Ida8074dcac2cc28b3629228eb22846d8a8e81b83
> > Reviewed-on: https://webrtc-review.googlesource.com/52980
> > Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
> > Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
> > Cr-Commit-Position: refs/heads/master@{#22017}
> 
> TBR=danilchap@webrtc.org,terelius@webrtc.org,stefan@webrtc.org,srte@webrtc.org
> 
> Change-Id: I3393b74370c4f4d0955f50728005b2b925be169b
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: webrtc:8415
> Reviewed-on: https://webrtc-review.googlesource.com/53262
> Reviewed-by: Sebastian Jansson <srte@webrtc.org>
> Commit-Queue: Sebastian Jansson <srte@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#22023}

TBR=danilchap@webrtc.org,terelius@webrtc.org,stefan@webrtc.org,srte@webrtc.org

Change-Id: Id68ad986ee51142b7be3381d0793709b4392fe2c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:8415
Reviewed-on: https://webrtc-review.googlesource.com/53360
Reviewed-by: Sebastian Jansson <srte@webrtc.org>
Commit-Queue: Sebastian Jansson <srte@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22024}
2018-02-14 16:53:49 +00:00

87 lines
3.1 KiB
C++

/*
* Copyright (c) 2016 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.
*/
#include "modules/pacing/alr_detector.h"
#include <algorithm>
#include <string>
#include <cstdio>
#include "logging/rtc_event_log/events/rtc_event_alr_state.h"
#include "logging/rtc_event_log/rtc_event_log.h"
#include "rtc_base/checks.h"
#include "rtc_base/experiments/alr_experiment.h"
#include "rtc_base/format_macros.h"
#include "rtc_base/logging.h"
#include "rtc_base/ptr_util.h"
#include "rtc_base/timeutils.h"
#include "system_wrappers/include/field_trial.h"
namespace webrtc {
AlrDetector::AlrDetector() : AlrDetector(nullptr) {}
AlrDetector::AlrDetector(RtcEventLog* event_log)
: bandwidth_usage_percent_(kDefaultAlrBandwidthUsagePercent),
alr_start_budget_level_percent_(kDefaultAlrStartBudgetLevelPercent),
alr_stop_budget_level_percent_(kDefaultAlrStopBudgetLevelPercent),
alr_budget_(0, true),
event_log_(event_log) {
RTC_CHECK(AlrExperimentSettings::MaxOneFieldTrialEnabled());
rtc::Optional<AlrExperimentSettings> experiment_settings =
AlrExperimentSettings::CreateFromFieldTrial(
AlrExperimentSettings::kScreenshareProbingBweExperimentName);
if (!experiment_settings) {
experiment_settings = AlrExperimentSettings::CreateFromFieldTrial(
AlrExperimentSettings::kStrictPacingAndProbingExperimentName);
}
if (experiment_settings) {
alr_stop_budget_level_percent_ =
experiment_settings->alr_stop_budget_level_percent;
alr_start_budget_level_percent_ =
experiment_settings->alr_start_budget_level_percent;
bandwidth_usage_percent_ = experiment_settings->alr_bandwidth_usage_percent;
}
}
AlrDetector::~AlrDetector() {}
void AlrDetector::OnBytesSent(size_t bytes_sent, int64_t delta_time_ms) {
alr_budget_.UseBudget(bytes_sent);
alr_budget_.IncreaseBudget(delta_time_ms);
bool state_changed = false;
if (alr_budget_.budget_level_percent() > alr_start_budget_level_percent_ &&
!alr_started_time_ms_) {
alr_started_time_ms_.emplace(rtc::TimeMillis());
state_changed = true;
} else if (alr_budget_.budget_level_percent() <
alr_stop_budget_level_percent_ &&
alr_started_time_ms_) {
state_changed = true;
alr_started_time_ms_.reset();
}
if (event_log_ && state_changed) {
event_log_->Log(
rtc::MakeUnique<RtcEventAlrState>(alr_started_time_ms_.has_value()));
}
}
void AlrDetector::SetEstimatedBitrate(int bitrate_bps) {
RTC_DCHECK(bitrate_bps);
const auto target_rate_kbps = static_cast<int64_t>(bitrate_bps) *
bandwidth_usage_percent_ / (1000 * 100);
alr_budget_.set_target_rate_kbps(rtc::dchecked_cast<int>(target_rate_kbps));
}
rtc::Optional<int64_t> AlrDetector::GetApplicationLimitedRegionStartTime()
const {
return alr_started_time_ms_;
}
} // namespace webrtc