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Reland "Add field trial to base stable target rate on loss based target rate"

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This is a reland of 63db77007bea78487af05d46b1b46106761556a1 that
was broken as I flipped != and == :(

Luckily this made a test flaky, and hence was the original change reverted.

Original change's description:
> Add field trial to base stable target rate on loss based target rate
>
> I.e not the pushback_rate that includes the congestion window pushback
> (if enabled).
>
> Bug: None
> Change-Id: I413d011004a95da03dd62f5b423abc3c8b66b333
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/165383
> Commit-Queue: Jonas Oreland <jonaso@webrtc.org>
> Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
> Reviewed-by: Sebastian Jansson <srte@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#30189}

Bug: None
Change-Id: Ia637d0498e6c0c2708eba659e2a30f3235944d4c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/165391
Reviewed-by: Sebastian Jansson <srte@webrtc.org>
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Commit-Queue: Jonas Oreland <jonaso@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30196}
This commit is contained in:
Jonas Oreland
2020-01-09 14:05:41 +01:00
committed by Commit Bot
parent 5c35f2fb1b
commit 350a82aec3
2 changed files with 16 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
modules/congestion_controller/goog_cc/goog_cc_network_control.cc
View File

@ -52,6 +52,10 @@ int64_t GetBpsOrDefault(const absl::optional<DataRate>& rate,
}
}
bool IsEnabled(const WebRtcKeyValueConfig* config, absl::string_view key) {
return config->Lookup(key).find("Enabled") == 0;
}
bool IsNotDisabled(const WebRtcKeyValueConfig* config, absl::string_view key) {
return config->Lookup(key).find("Disabled") != 0;
}
@ -72,6 +76,8 @@ GoogCcNetworkController::GoogCcNetworkController(NetworkControllerConfig config,
"WebRTC-Bwe-IgnoreProbesLowerThanNetworkStateEstimate")),
rate_control_settings_(
RateControlSettings::ParseFromKeyValueConfig(key_value_config_)),
loss_based_stable_rate_(
IsEnabled(key_value_config_, "WebRTC-Bwe-LossBasedStableRate")),
probe_controller_(
new ProbeController(key_value_config_, config.event_log)),
congestion_window_pushback_controller_(
@ -619,9 +625,15 @@ void GoogCcNetworkController::MaybeTriggerOnNetworkChanged(
TargetTransferRate target_rate_msg;
target_rate_msg.at_time = at_time;
target_rate_msg.target_rate = pushback_target_rate;
if (loss_based_stable_rate_) {
target_rate_msg.stable_target_rate =
std::min(bandwidth_estimation_->GetEstimatedLinkCapacity(),
loss_based_target_rate);
} else {
target_rate_msg.stable_target_rate =
std::min(bandwidth_estimation_->GetEstimatedLinkCapacity(),
pushback_target_rate);
}
target_rate_msg.network_estimate.at_time = at_time;
target_rate_msg.network_estimate.round_trip_time = round_trip_time;
target_rate_msg.network_estimate.loss_rate_ratio = fraction_loss / 255.0f;

1
modules/congestion_controller/goog_cc/goog_cc_network_control.h
View File

@ -88,6 +88,7 @@ class GoogCcNetworkController : public NetworkControllerInterface {
const bool use_min_allocatable_as_lower_bound_;
const bool ignore_probes_lower_than_network_estimate_;
const RateControlSettings rate_control_settings_;
const bool loss_based_stable_rate_;
const std::unique_ptr<ProbeController> probe_controller_;
const std::unique_ptr<CongestionWindowPushbackController>