webrtc/experiments/field_trials.py
Jakob Ivarsson f6ae657b07 Adapt NetEq delay to received FEC (both RED and codec inband).
This is achieved by notifing NetEq controller of all received packets
after splitting, which then does deduping so that only useful packets
are counted.

The goal is to reduce underruns when FEC is used.

The behavior is default enabled with a field trial kill-switch.

Bug: webrtc:13322
Change-Id: I2a1a78ead1a58940ef92da0d43413eda5ba1caf3
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/337440
Commit-Queue: Jakob Ivarsson‎ <jakobi@webrtc.org>
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41665}
2024-02-05 12:33:27 +00:00

1102 lines
40 KiB
Python
Executable file

#!/usr/bin/env vpython3
# Copyright (c) 2022 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.
import datetime
from datetime import date
import sys
from typing import FrozenSet, List, Set
import argparse
import dataclasses
@dataclasses.dataclass(frozen=True)
class FieldTrial:
"""Representation of all attributes associated with a field trial.
Attributes:
key: Field trial key.
bug: Associated open bug containing more context.
end_date: Date when the field trial expires and must be deleted.
"""
key: str
bug: str
end_date: date
# As per the policy in `g3doc/field-trials.md`, all field trials should be
# registered in the container below.
ACTIVE_FIELD_TRIALS: FrozenSet[FieldTrial] = frozenset([
# keep-sorted start
FieldTrial('WebRTC-Aec3DelayEstimatorDetectPreEcho',
'webrtc:14205',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3PenalyzeHighDelaysInitialPhase',
'webrtc:14919',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3PreEchoConfiguration',
'webrtc:14205',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-GainController2',
'webrtc:7494',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-NetEqFecDelayAdaptation',
'webrtc:13322',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-OpusSetSignalVoiceWithDtx',
'webrtc:4559',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-OpusGeneratePlc',
'webrtc:13322',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-PriorityBitrate',
'webrtc:15769',
date(2024, 4, 1)),
FieldTrial('WebRTC-AV1-OverridePriorityBitrate',
'webrtc:15763',
date(2024, 4, 1)),
FieldTrial('WebRTC-Av1-GetEncoderInfoOverride',
'webrtc:14931',
date(2024, 4, 1)),
FieldTrial('WebRTC-BurstyPacer',
'chromium:1354491',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-SubtractAdditionalBackoffTerm',
'webrtc:13402',
date(2024, 4, 1)),
FieldTrial('WebRTC-DisableRtxRateLimiter',
'webrtc:15184',
date(2024, 4, 1)),
FieldTrial('WebRTC-EncoderDataDumpDirectory',
'b/296242528',
date(2024, 4, 1)),
FieldTrial('WebRTC-IPv6NetworkResolutionFixes',
'webrtc:14334',
date(2024, 4, 1)),
FieldTrial('WebRTC-IncomingTimestampOnMarkerBitOnly',
'webrtc:14526',
date(2024, 4, 1)),
FieldTrial('WebRTC-IncreaseIceCandidatePriorityHostSrflx',
'webrtc:15020',
date(2024, 4, 1)),
FieldTrial('WebRTC-JitterEstimatorConfig',
'webrtc:14151',
date(2024, 4, 1)),
FieldTrial('WebRTC-LibaomAv1Encoder-DisableFrameDropping',
'webrtc:15225',
date(2024, 4, 1)),
FieldTrial('WebRTC-LibaomAv1Encoder-MaxConsecFrameDrop',
'webrtc:15821',
date(2024, 4, 1)),
FieldTrial('WebRTC-Pacer-FastRetransmissions',
'chromium:1354491',
date(2024, 4, 1)),
FieldTrial('WebRTC-Pacer-KeyframeFlushing',
'webrtc:11340',
date(2024, 4, 1)),
FieldTrial('WebRTC-PaddingMode-RecentLargePacket',
'webrtc:15201',
date(2024, 4, 1)),
FieldTrial('WebRTC-PermuteTlsClientHello',
'webrtc:15467',
date(2024, 7, 1)),
FieldTrial('WebRTC-PreventSsrcGroupsWithUnexpectedSize',
'chromium:1459124',
date(2024, 4, 1)),
FieldTrial('WebRTC-RtcEventLogEncodeDependencyDescriptor',
'webrtc:14975',
date(2024, 4, 1)),
FieldTrial('WebRTC-RtcEventLogEncodeNetEqSetMinimumDelayKillSwitch',
'webrtc:14763',
date(2024, 4, 1)),
FieldTrial('WebRTC-SCM-Timestamp',
'webrtc:5773',
date(2024, 4, 1)),
FieldTrial('WebRTC-SendPacketsOnWorkerThread',
'webrtc:14502',
date(2024, 4, 1)),
FieldTrial('WebRTC-SrtpRemoveReceiveStream',
'webrtc:15604',
date(2024, 10, 1)),
FieldTrial('WebRTC-TaskQueue-ReplaceLibeventWithStdlib',
'webrtc:14389',
date(2024, 4, 1)),
FieldTrial('WebRTC-Video-EnableRetransmitAllLayers',
'webrtc:14959',
date(2024, 4, 1)),
FieldTrial('WebRTC-Video-EncoderFallbackSettings',
'webrtc:6634',
date(2024, 4, 1)),
FieldTrial('WebRTC-Video-RequestedResolutionOverrideOutputFormatRequest',
'webrtc:14451',
date(2024, 4, 1)),
FieldTrial('WebRTC-VideoEncoderSettings',
'chromium:1406331',
date(2024, 4, 1)),
FieldTrial('WebRTC-ZeroHertzQueueOverload',
'webrtc:332381',
date(2024, 7, 1)),
# keep-sorted end
]) # yapf: disable
INDEFINITE = date(datetime.MAXYEAR, 1, 1)
# These field trials precedes the policy in `g3doc/field-trials.md` and are
# therefore not required to follow it. Do not add any new field trials here.
POLICY_EXEMPT_FIELD_TRIALS: FrozenSet[FieldTrial] = frozenset([
# keep-sorted start
FieldTrial('UseTwccPlrForAna',
'webrtc:7058',
date(2024, 4, 1)),
FieldTrial('WebRTC-AddNetworkCostToVpn',
'webrtc:13097',
date(2024, 4, 1)),
FieldTrial('WebRTC-AddPacingToCongestionWindowPushback',
'webrtc:10171',
date(2024, 4, 1)),
FieldTrial('WebRTC-AdjustOpusBandwidth',
'webrtc:8522',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3AecStateFullResetKillSwitch',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3AecStateSubtractorAnalyzerResetKillSwitch',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3AntiHowlingMinimizationKillSwitch',
'b/150764764',
INDEFINITE),
FieldTrial('WebRTC-Aec3ClampInstQualityToOneKillSwitch',
'webrtc:10913',
INDEFINITE),
FieldTrial('WebRTC-Aec3ClampInstQualityToZeroKillSwitch',
'webrtc:10913',
INDEFINITE),
FieldTrial('WebRTC-Aec3CoarseFilterResetHangoverKillSwitch',
'webrtc:12265',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3ConservativeTailFreqResponse',
'webrtc:13173',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3DeactivateInitialStateResetKillSwitch',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3DelayEstimateSmoothingDelayFoundOverride',
'webrtc:12775',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3DelayEstimateSmoothingOverride',
'webrtc:12775',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3EchoSaturationDetectionKillSwitch',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceCaptureDelayEstimationDownmixing',
'webrtc:11153',
INDEFINITE),
FieldTrial(
'WebRTC-Aec3EnforceCaptureDelayEstimationLeftRightPrioritization',
'webrtc:11153',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceConservativeHfSuppression',
'webrtc:11985',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3EnforceLowActiveRenderLimit',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceMoreTransparentNearendSuppressorHfTuning',
'webrtc:11487',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceMoreTransparentNearendSuppressorTuning',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceMoreTransparentNormalSuppressorHfTuning',
'webrtc:11487',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceMoreTransparentNormalSuppressorTuning',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceRapidlyAdjustingNearendSuppressorTunings',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceRapidlyAdjustingNormalSuppressorTunings',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceRenderDelayEstimationDownmixing',
'webrtc:11153',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceSlowlyAdjustingNearendSuppressorTunings',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceSlowlyAdjustingNormalSuppressorTunings',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceStationarityProperties',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceStationarityPropertiesAtInit',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3EnforceVeryLowActiveRenderLimit',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3HighPassFilterEchoReference',
'webrtc:12265',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3MinErleDuringOnsetsKillSwitch',
'webrtc:10341',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3NonlinearModeReverbKillSwitch',
'webrtc:11985',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3OnsetDetectionKillSwitch',
'webrtc:11475',
INDEFINITE),
FieldTrial(
'WebRTC-Aec3RenderDelayEstimationLeftRightPrioritizationKillSwitch',
'webrtc:11153',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3SensitiveDominantNearendActivation',
'webrtc:11475',
INDEFINITE),
FieldTrial('WebRTC-Aec3SetupSpecificDefaultConfigDefaultsKillSwitch',
'webrtc:11151',
INDEFINITE),
FieldTrial('WebRTC-Aec3ShortHeadroomKillSwitch',
'webrtc:10341',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3StereoContentDetectionKillSwitch',
'webrtc:14900',
INDEFINITE),
FieldTrial('WebRTC-Aec3SuppressorAntiHowlingGainOverride',
'webrtc:11487',
INDEFINITE),
FieldTrial('WebRTC-Aec3SuppressorDominantNearendEnrExitThresholdOverride',
'webrtc:11487',
INDEFINITE),
FieldTrial('WebRTC-Aec3SuppressorDominantNearendEnrThresholdOverride',
'webrtc:11487',
INDEFINITE),
FieldTrial('WebRTC-Aec3SuppressorDominantNearendHoldDurationOverride',
'webrtc:11487',
INDEFINITE),
FieldTrial('WebRTC-Aec3SuppressorDominantNearendSnrThresholdOverride',
'webrtc:11487',
INDEFINITE),
FieldTrial('WebRTC-Aec3SuppressorDominantNearendTriggerThresholdOverride',
'webrtc:11487',
INDEFINITE),
FieldTrial('WebRTC-Aec3SuppressorNearendHfMaskSuppressOverride',
'webrtc:11487',
INDEFINITE),
FieldTrial('WebRTC-Aec3SuppressorNearendHfMaskTransparentOverride',
'webrtc:11487',
INDEFINITE),
FieldTrial('WebRTC-Aec3SuppressorNearendLfMaskSuppressOverride',
'webrtc:11487',
INDEFINITE),
FieldTrial('WebRTC-Aec3SuppressorNearendLfMaskTransparentOverride',
'webrtc:11487',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3SuppressorNearendMaxDecFactorLfOverride',
'webrtc:11487',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3SuppressorNearendMaxIncFactorOverride',
'webrtc:11487',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3SuppressorNormalHfMaskSuppressOverride',
'webrtc:11487',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3SuppressorNormalHfMaskTransparentOverride',
'webrtc:11487',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3SuppressorNormalLfMaskSuppressOverride',
'webrtc:11487',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3SuppressorNormalLfMaskTransparentOverride',
'webrtc:11487',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3SuppressorNormalMaxDecFactorLfOverride',
'webrtc:11487',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3SuppressorNormalMaxIncFactorOverride',
'webrtc:11487',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3SuppressorTuningOverride',
'webrtc:11487',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3TransparentAntiHowlingGain',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3TransparentModeHmm',
'webrtc:12265',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3TransparentModeKillSwitch',
'webrtc:9256',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3Use1Dot2SecondsInitialStateDuration',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3Use1Dot6SecondsInitialStateDuration',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3Use2Dot0SecondsInitialStateDuration',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3UseDot1SecondsInitialStateDuration',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3UseDot2SecondsInitialStateDuration',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3UseDot3SecondsInitialStateDuration',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3UseDot6SecondsInitialStateDuration',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3UseDot9SecondsInitialStateDuration',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3UseErleOnsetCompensationInDominantNearend',
'webrtc:12686',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3UseLowEarlyReflectionsDefaultGain',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3UseLowLateReflectionsDefaultGain',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3UseNearendReverbLen',
'webrtc:13143',
INDEFINITE),
FieldTrial('WebRTC-Aec3UseShortConfigChangeDuration',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3UseZeroInitialStateDuration',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Aec3VerySensitiveDominantNearendActivation',
'webrtc:11475',
date(2024, 4, 1)),
FieldTrial('WebRTC-Agc2SimdAvx2KillSwitch',
'webrtc:7494',
date(2024, 4, 1)),
FieldTrial('WebRTC-Agc2SimdNeonKillSwitch',
'webrtc:7494',
date(2024, 4, 1)),
FieldTrial('WebRTC-Agc2SimdSse2KillSwitch',
'webrtc:7494',
date(2024, 4, 1)),
FieldTrial('WebRTC-AllowMACBasedIPv6',
'webrtc:12268',
date(2024, 4, 1)),
FieldTrial('WebRTC-AlrDetectorParameters',
'webrtc:10542',
INDEFINITE),
FieldTrial('WebRTC-AndroidNetworkMonitor-IsAdapterAvailable',
'webrtc:13741',
date(2024, 4, 1)),
FieldTrial('WebRTC-ApmExperimentalMultiChannelCaptureKillSwitch',
'webrtc:14901',
INDEFINITE),
FieldTrial('WebRTC-ApmExperimentalMultiChannelRenderKillSwitch',
'webrtc:14902',
INDEFINITE),
FieldTrial('WebRTC-Audio-2ndAgcMinMicLevelExperiment',
'chromium:1275566',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-ABWENoTWCC',
'webrtc:8243',
INDEFINITE),
FieldTrial('WebRTC-Audio-AdaptivePtime',
'chromium:1086942',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-Allocation',
'webrtc:10286',
INDEFINITE),
FieldTrial('WebRTC-Audio-AlrProbing',
'webrtc:10200',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-FecAdaptation',
'webrtc:8127',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-LegacyOverhead',
'webrtc:11001',
INDEFINITE),
FieldTrial('WebRTC-Audio-MinimizeResamplingOnMobile',
'webrtc:6181',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-NetEqDecisionLogicConfig',
'webrtc:13322',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-NetEqDelayManagerConfig',
'webrtc:10333',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-NetEqNackTrackerConfig',
'webrtc:10178',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-NetEqSmartFlushing',
'webrtc:12201',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-OpusAvoidNoisePumpingDuringDtx',
'webrtc:12380',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-OpusBitrateMultipliers',
'webrtc:11055',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-OpusPlcUsePrevDecodedSamples',
'b/143582588',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-Red-For-Opus',
'webrtc:11640',
date(2024, 4, 1)),
FieldTrial('WebRTC-Audio-StableTargetAdaptation',
'webrtc:10981',
INDEFINITE),
FieldTrial('WebRTC-Audio-iOS-Holding',
'webrtc:8126',
date(2024, 4, 1)),
FieldTrial('WebRTC-AudioDevicePlayoutBufferSizeFactor',
'webrtc:10928',
date(2024, 4, 1)),
FieldTrial('WebRTC-AutomaticAnimationDetectionScreenshare',
'webrtc:11058',
date(2024, 4, 1)),
FieldTrial('WebRTC-Avx2SupportKillSwitch',
'webrtc:11663',
date(2024, 4, 1)),
FieldTrial('WebRTC-BindUsingInterfaceName',
'webrtc:10707',
date(2024, 4, 1)),
FieldTrial('WebRTC-BoostedScreenshareQp',
'webrtc:9659',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-AllocationProbing',
'webrtc:10394',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-AlrProbing',
'webrtc:10394',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-EstimateBoundedIncrease',
'webrtc:10498',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-ExponentialProbing',
'webrtc:10394',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-IgnoreProbesLowerThanNetworkStateEstimate',
'webrtc:10498',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-InitialProbing',
'webrtc:10394',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-InjectedCongestionController',
'webrtc:8415',
INDEFINITE),
FieldTrial('WebRTC-Bwe-LimitProbesLowerThanThroughputEstimate',
'webrtc:11498',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-LinkCapacity',
'webrtc:9718',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-LossBasedBweV2',
'webrtc:12707',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-LossBasedControl',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-MaxRttLimit',
'webrtc:9718',
INDEFINITE),
FieldTrial('WebRTC-Bwe-MinAllocAsLowerBound',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-NetworkRouteConstraints',
'webrtc:11434',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-NoFeedbackReset',
'webrtc:9718',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-PaceAtMaxOfBweAndLowerLinkCapacity',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-ProbingBehavior',
'webrtc:10394',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-ProbingConfiguration',
'webrtc:10394',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-ReceiveTimeFix',
'webrtc:9054',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-ReceiverLimitCapsOnly',
'webrtc:12306',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-RobustThroughputEstimatorSettings',
'webrtc:10274',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-SafeResetOnRouteChange',
'webrtc:9718',
INDEFINITE),
FieldTrial('WebRTC-Bwe-SeparateAudioPackets',
'webrtc:10932',
date(2024, 4, 1)),
FieldTrial('WebRTC-Bwe-TrendlineEstimatorSettings',
'webrtc:10932',
date(2024, 4, 1)),
FieldTrial('WebRTC-BweBackOffFactor',
'webrtc:8212',
INDEFINITE),
FieldTrial('WebRTC-BweLossExperiment',
'webrtc:5839',
date(2024, 4, 1)),
FieldTrial('WebRTC-BweRapidRecoveryExperiment',
'webrtc:8015',
date(2024, 4, 1)),
FieldTrial('WebRTC-BweThroughputWindowConfig',
'webrtc:10274',
date(2024, 4, 1)),
FieldTrial('WebRTC-BweWindowSizeInPackets',
'webrtc:8212',
INDEFINITE),
FieldTrial('WebRTC-CongestionWindow',
'webrtc:14898',
INDEFINITE),
FieldTrial('WebRTC-CpuLoadEstimator',
'webrtc:8504',
date(2024, 4, 1)),
FieldTrial('WebRTC-Debugging-RtpDump',
'webrtc:10675',
INDEFINITE),
FieldTrial('WebRTC-DecoderDataDumpDirectory',
'webrtc:14236',
INDEFINITE),
FieldTrial('WebRTC-DefaultBitrateLimitsKillSwitch',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-DependencyDescriptorAdvertised',
'webrtc:10342',
date(2024, 4, 1)),
FieldTrial('WebRTC-DisableUlpFecExperiment',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-DontIncreaseDelayBasedBweInAlr',
'webrtc:10542',
date(2024, 4, 1)),
FieldTrial('WebRTC-DscpFieldTrial',
'webrtc:13622',
date(2024, 4, 1)),
FieldTrial('WebRTC-ExtraICEPing',
'webrtc:10273',
date(2024, 4, 1)),
FieldTrial('WebRTC-FakeNetworkReceiveConfig',
'webrtc:14238',
INDEFINITE),
FieldTrial('WebRTC-FakeNetworkSendConfig',
'webrtc:14238',
INDEFINITE),
FieldTrial('WebRTC-FilterAbsSendTimeExtension',
'webrtc:10234',
INDEFINITE),
FieldTrial('WebRTC-FindNetworkHandleWithoutIpv6TemporaryPart',
'webrtc:11067',
date(2024, 4, 1)),
FieldTrial('WebRTC-FlexFEC-03',
'webrtc:5654',
date(2024, 4, 1)),
FieldTrial('WebRTC-FlexFEC-03-Advertised',
'webrtc:5654',
date(2024, 4, 1)),
FieldTrial('WebRTC-ForcePlayoutDelay',
'webrtc:11896',
INDEFINITE),
FieldTrial('WebRTC-ForceSendPlayoutDelay',
'webrtc:11896',
INDEFINITE),
FieldTrial('WebRTC-ForceSimulatedOveruseIntervalMs',
'webrtc:14239',
INDEFINITE),
FieldTrial('WebRTC-FrameDropper',
'webrtc:9711',
INDEFINITE),
FieldTrial('WebRTC-FullBandHpfKillSwitch',
'webrtc:11193',
date(2024, 4, 1)),
FieldTrial('WebRTC-GenericCodecDependencyDescriptor',
'webrtc:14969',
INDEFINITE),
FieldTrial('WebRTC-GenericDescriptorAdvertised',
'webrtc:9361',
INDEFINITE),
FieldTrial('WebRTC-GenericDescriptorAuth',
'webrtc:10103',
INDEFINITE),
FieldTrial('WebRTC-GenericPictureId',
'webrtc:9361',
INDEFINITE),
FieldTrial('WebRTC-GetEncoderInfoOverride',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-H264HighProfile',
'webrtc:6337',
date(2024, 4, 1)),
FieldTrial('WebRTC-IPv6Default',
'chromium:413437',
date(2024, 4, 1)),
FieldTrial('WebRTC-IceControllerFieldTrials',
'chromium:1024965',
INDEFINITE),
FieldTrial('WebRTC-IceFieldTrials',
'webrtc:11021',
INDEFINITE),
FieldTrial('WebRTC-KeyframeInterval',
'webrtc:10427',
INDEFINITE),
FieldTrial('WebRTC-LegacyFrameIdJumpBehavior',
'webrtc:13343',
date(2024, 4, 1)),
FieldTrial('WebRTC-LegacySimulcastLayerLimit',
'webrtc:8785',
INDEFINITE),
FieldTrial('WebRTC-LegacyTlsProtocols',
'webrtc:10261',
date(2024, 4, 1)),
FieldTrial('WebRTC-LowresSimulcastBitrateInterpolation',
'webrtc:12415',
date(2024, 4, 1)),
FieldTrial('WebRTC-MutedStateKillSwitch',
'b/177830919',
date(2024, 4, 1)),
FieldTrial('WebRTC-Network-UseNWPathMonitor',
'webrtc:10966',
date(2024, 4, 1)),
FieldTrial('WebRTC-NetworkMonitorAutoDetect',
'webrtc:13741',
date(2024, 4, 1)),
FieldTrial('WebRTC-NormalizeSimulcastResolution',
'',
INDEFINITE),
FieldTrial('WebRTC-Pacer-BlockAudio',
'webrtc:8415',
INDEFINITE),
FieldTrial('WebRTC-Pacer-DrainQueue',
'webrtc:8415',
date(2024, 4, 1)),
FieldTrial('WebRTC-Pacer-IgnoreTransportOverhead',
'webrtc:9883',
INDEFINITE),
FieldTrial('WebRTC-Pacer-PadInSilence',
'webrtc:8415',
date(2024, 4, 1)),
FieldTrial('WebRTC-PacketBufferMaxSize',
'webrtc:9851',
INDEFINITE),
FieldTrial('WebRTC-PcFactoryDefaultBitrates',
'webrtc:10865',
date(2024, 4, 1)),
FieldTrial('WebRTC-PiggybackIceCheckAcknowledgement',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-PixelLimitResource',
'webrtc:12261',
INDEFINITE),
FieldTrial('WebRTC-ProbingScreenshareBwe',
'webrtc:7694',
date(2024, 4, 1)),
FieldTrial('WebRTC-ProtectionOverheadRateThreshold',
'webrtc:14899',
INDEFINITE),
FieldTrial('WebRTC-QpParsingKillSwitch',
'webrtc:12542',
date(2024, 4, 1)),
FieldTrial('WebRTC-RtcEventLogKillSwitch',
'webrtc:12084',
INDEFINITE),
FieldTrial('WebRTC-RtcEventLogNewFormat',
'webrtc:8111',
date(2024, 4, 1)),
FieldTrial('WebRTC-RtcpLossNotification',
'webrtc:10336',
date(2024, 4, 1)),
FieldTrial('WebRTC-RttMult',
'webrtc:9670',
INDEFINITE),
FieldTrial('WebRTC-SendBufferSizeBytes',
'webrtc:11905',
date(2024, 4, 1)),
FieldTrial('WebRTC-ReceiveBufferSize',
'webrtc:15585',
date(2024, 4, 1)),
FieldTrial('WebRTC-SendNackDelayMs',
'webrtc:9953',
date(2024, 4, 1)),
FieldTrial('WebRTC-SetSocketReceiveBuffer',
'webrtc:13753',
date(2024, 4, 1)),
FieldTrial('WebRTC-SignalNetworkPreferenceChange',
'webrtc:11825',
date(2024, 4, 1)),
FieldTrial('WebRTC-SimulcastEncoderAdapter-GetEncoderInfoOverride',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-SimulcastLayerLimitRoundUp',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-SpsPpsIdrIsH264Keyframe',
'webrtc:8423',
INDEFINITE),
FieldTrial('WebRTC-StableTargetRate',
'webrtc:10126',
date(2024, 4, 1)),
FieldTrial('WebRTC-StrictPacingAndProbing',
'webrtc:8072',
date(2024, 4, 1)),
FieldTrial('WebRTC-StunInterPacketDelay',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-SurfaceCellularTypes',
'webrtc:11473',
date(2024, 4, 1)),
FieldTrial('WebRTC-SwitchEncoderOnInitializationFailures',
'webrtc:13572',
date(2024, 4, 1)),
FieldTrial('WebRTC-Target-Bitrate-Rtcp',
'webrtc:9969',
INDEFINITE),
FieldTrial('WebRTC-TransientSuppressorForcedOff',
'chromium:1186705',
INDEFINITE),
FieldTrial('WebRTC-UseBaseHeavyVP8TL3RateAllocation',
'webrtc:9477',
date(2024, 4, 1)),
FieldTrial('WebRTC-UseDifferentiatedCellularCosts',
'webrtc:11473',
date(2024, 4, 1)),
FieldTrial('WebRTC-UseShortVP8TL2Pattern',
'webrtc:9477',
INDEFINITE),
FieldTrial('WebRTC-UseShortVP8TL3Pattern',
'webrtc:8162',
INDEFINITE),
FieldTrial('WebRTC-UseStandardBytesStats',
'webrtc:10525',
date(2024, 4, 1)),
FieldTrial('WebRTC-UseTurnServerAsStunServer',
'webrtc:11059',
date(2024, 4, 1)),
FieldTrial('WebRTC-VP8-CpuSpeed-Arm',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-VP8-ForcePartitionResilience',
'webrtc:11832',
INDEFINITE),
FieldTrial('WebRTC-VP8-Forced-Fallback-Encoder-v2',
'webrtc:6634',
INDEFINITE),
FieldTrial('WebRTC-VP8-GetEncoderInfoOverride',
'webrtc:11832',
INDEFINITE),
FieldTrial('WebRTC-VP8-MaxFrameInterval',
'webrtc:15530',
date(2024, 4, 1)),
FieldTrial('WebRTC-VP8-Postproc-Config',
'webrtc:11551',
date(2024, 4, 1)),
FieldTrial('WebRTC-VP8-Postproc-Config-Arm',
'webrtc:6634',
INDEFINITE),
FieldTrial('WebRTC-VP8ConferenceTemporalLayers',
'webrtc:9260',
INDEFINITE),
FieldTrial('WebRTC-VP8IosMaxNumberOfThread',
'webrtc:10005',
date(2024, 4, 1)),
FieldTrial('WebRTC-VP8VariableFramerateScreenshare',
'webrtc:10310',
date(2024, 4, 1)),
FieldTrial('WebRTC-VP9-GetEncoderInfoOverride',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-VP9-LowTierOptimizations',
'webrtc:13888',
date(2024, 4, 1)),
FieldTrial('WebRTC-VP9-PerformanceFlags',
'webrtc:11551',
date(2024, 4, 1)),
FieldTrial('WebRTC-VP9QualityScaler',
'webrtc:11319',
date(2024, 4, 1)),
FieldTrial('WebRTC-VP9VariableFramerateScreenshare',
'webrtc:10310',
date(2024, 4, 1)),
FieldTrial('WebRTC-Video-BalancedDegradation',
'webrtc:7607',
INDEFINITE),
FieldTrial('WebRTC-Video-BalancedDegradationSettings',
'',
INDEFINITE),
FieldTrial('WebRTC-Video-BandwidthQualityScalerSettings',
'webrtc:12942',
INDEFINITE),
FieldTrial('WebRTC-Video-DisableAutomaticResize',
'webrtc:11812',
date(2024, 4, 1)),
FieldTrial('WebRTC-Video-DiscardPacketsWithUnknownSsrc',
'webrtc:9871',
INDEFINITE),
FieldTrial('WebRTC-Video-ForcedSwDecoderFallback',
'',
INDEFINITE),
FieldTrial('WebRTC-Video-InitialDecoderResolution',
'webrtc:11898',
date(2024, 4, 1)),
FieldTrial('WebRTC-Video-MinVideoBitrate',
'webrtc:10915',
date(2024, 4, 1)),
FieldTrial('WebRTC-Video-Pacing',
'webrtc:10038',
date(2024, 4, 1)),
FieldTrial('WebRTC-Video-PreferTemporalSupportOnBaseLayer',
'webrtc:11324',
INDEFINITE),
FieldTrial('WebRTC-Video-QualityRampupSettings',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-Video-QualityScalerSettings',
'',
INDEFINITE),
FieldTrial('WebRTC-Video-QualityScaling',
'webrtc:9169',
INDEFINITE),
FieldTrial('WebRTC-Video-UseFrameRateForOverhead',
'b/166341943',
date(2024, 4, 1)),
FieldTrial('WebRTC-Video-VariableStartScaleFactor',
'',
date(2024, 4, 1)),
FieldTrial('WebRTC-VideoFrameTrackingIdAdvertised',
'webrtc:12594',
INDEFINITE),
FieldTrial('WebRTC-VideoLayersAllocationAdvertised',
'webrtc:1200',
INDEFINITE),
FieldTrial('WebRTC-VideoRateControl',
'webrtc:10223',
INDEFINITE),
FieldTrial('WebRTC-VoIPChannelRemixingAdjustmentKillSwitch',
'chromium:1027117',
date(2024, 4, 1)),
FieldTrial('WebRTC-Vp9ExternalRefCtrl',
'webrtc:9585',
date(2024, 4, 1)),
FieldTrial('WebRTC-Vp9InterLayerPred',
'chromium:949536',
INDEFINITE),
FieldTrial('WebRTC-Vp9IssueKeyFrameOnLayerDeactivation',
'chromium:889017',
date(2024, 4, 1)),
FieldTrial('WebRTC-ZeroHertzScreenshare',
'chromium:1255737',
date(2024, 4, 1)),
FieldTrial('WebRTC-ZeroPlayoutDelay',
'chromium:1335323',
date(2024, 4, 1)),
# keep-sorted end
]) # yapf: disable
REGISTERED_FIELD_TRIALS: FrozenSet[FieldTrial] = ACTIVE_FIELD_TRIALS.union(
POLICY_EXEMPT_FIELD_TRIALS)
def todays_date() -> date:
now = datetime.datetime.now(datetime.timezone.utc)
return date(now.year, now.month, now.day)
def registry_header(
field_trials: FrozenSet[FieldTrial] = REGISTERED_FIELD_TRIALS) -> str:
"""Generates a C++ header with all field trial keys.
Args:
field_trials: Field trials to include in the header.
Returns:
String representation of a C++ header file containing all field trial
keys.
>>> trials = {
... FieldTrial('B', '', date(1, 1, 1)),
... FieldTrial('A', '', date(1, 1, 1)),
... FieldTrial('B', '', date(2, 2, 2)),
... }
>>> print(registry_header(trials))
// This file was automatically generated. Do not edit.
<BLANKLINE>
#ifndef GEN_REGISTERED_FIELD_TRIALS_H_
#define GEN_REGISTERED_FIELD_TRIALS_H_
<BLANKLINE>
#include "absl/strings/string_view.h"
<BLANKLINE>
namespace webrtc {
<BLANKLINE>
inline constexpr absl::string_view kRegisteredFieldTrials[] = {
"A",
"B",
};
<BLANKLINE>
} // namespace webrtc
<BLANKLINE>
#endif // GEN_REGISTERED_FIELD_TRIALS_H_
<BLANKLINE>
"""
registered_keys = {f.key for f in field_trials}
keys = '\n'.join(f' "{k}",' for k in sorted(registered_keys))
return ('// This file was automatically generated. Do not edit.\n'
'\n'
'#ifndef GEN_REGISTERED_FIELD_TRIALS_H_\n'
'#define GEN_REGISTERED_FIELD_TRIALS_H_\n'
'\n'
'#include "absl/strings/string_view.h"\n'
'\n'
'namespace webrtc {\n'
'\n'
'inline constexpr absl::string_view kRegisteredFieldTrials[] = {\n'
f'{keys}\n'
'};\n'
'\n'
'} // namespace webrtc\n'
'\n'
'#endif // GEN_REGISTERED_FIELD_TRIALS_H_\n')
def expired_field_trials(
threshold: date,
field_trials: FrozenSet[FieldTrial] = REGISTERED_FIELD_TRIALS
) -> Set[FieldTrial]:
"""Obtains expired field trials.
Args:
threshold: Date from which to check end date.
field_trials: Field trials to validate.
Returns:
All expired field trials.
>>> trials = {
... FieldTrial('Expired', '', date(1, 1, 1)),
... FieldTrial('Not-Expired', '', date(1, 1, 2)),
... }
>>> expired_field_trials(date(1, 1, 1), trials)
{FieldTrial(key='Expired', bug='', end_date=datetime.date(1, 1, 1))}
"""
return {f for f in field_trials if f.end_date <= threshold}
def validate_field_trials(
field_trials: FrozenSet[FieldTrial] = ACTIVE_FIELD_TRIALS
) -> List[str]:
"""Validate that field trials conforms to the policy.
Args:
field_trials: Field trials to validate.
Returns:
A list of explanations for invalid field trials.
"""
invalid = []
for trial in field_trials:
if not trial.key.startswith('WebRTC-'):
invalid.append(f'{trial.key} does not start with "WebRTC-".')
if len(trial.bug) <= 0:
invalid.append(f'{trial.key} must have an associated bug.')
if trial.end_date >= INDEFINITE:
invalid.append(f'{trial.key} must have an end date.')
return invalid
def cmd_header(args: argparse.Namespace) -> None:
args.output.write(registry_header())
def cmd_expired(args: argparse.Namespace) -> None:
today = todays_date()
diff = datetime.timedelta(days=args.in_days)
expired = expired_field_trials(today + diff)
if len(expired) <= 0:
return
expired_by_date = sorted([(f.end_date, f.key) for f in expired])
print('\n'.join(
f'{key} {"expired" if date <= today else "expires"} on {date}'
for date, key in expired_by_date))
if any(date <= today for date, _ in expired_by_date):
sys.exit(1)
def cmd_validate(args: argparse.Namespace) -> None:
del args
invalid = validate_field_trials()
if len(invalid) <= 0:
return
print('\n'.join(sorted(invalid)))
sys.exit(1)
def main() -> None:
parser = argparse.ArgumentParser()
subcommand = parser.add_subparsers(dest='cmd')
parser_header = subcommand.add_parser(
'header',
help='generate C++ header file containing registered field trial keys')
parser_header.add_argument('--output',
default=sys.stdout,
type=argparse.FileType('w'),
required=False,
help='output file')
parser_header.set_defaults(cmd=cmd_header)
parser_expired = subcommand.add_parser(
'expired',
help='lists all expired field trials',
description='''
Lists all expired field trials. Exits with a non-zero exit status if
any field trials has expired, ignoring the --in-days argument.
''')
parser_expired.add_argument(
'--in-days',
default=0,
type=int,
required=False,
help='number of days relative to today to check')
parser_expired.set_defaults(cmd=cmd_expired)
parser_validate = subcommand.add_parser(
'validate',
help='validates that all field trials conforms to the policy.',
description='''
Validates that all field trials conforms to the policy. Exits with a
non-zero exit status if any field trials does not.
''')
parser_validate.set_defaults(cmd=cmd_validate)
args = parser.parse_args()
if not args.cmd:
parser.print_help(sys.stderr)
sys.exit(1)
args.cmd(args)
if __name__ == '__main__':
main()