mirror of
https://github.com/mollyim/webrtc.git
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ae68ea0008
This is a reland of dd33d8ec71
Original change's description:
> Add new field trial for controlling congestion window settings
>
> Bug: None
> Change-Id: Idb7425e394db74a9dfb4f3764a58710497adff56
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/131127
> Reviewed-by: Magnus Flodman <mflodman@webrtc.org>
> Reviewed-by: Christoffer Rodbro <crodbro@webrtc.org>
> Commit-Queue: Evan Shrubsole <eshr@google.com>
> Cr-Commit-Position: refs/heads/master@{#27538}
TBR=mflodman@webrtc.org,crodbro@webrtc.org
Bug: None
Change-Id: Icee2efb90e219ef2c3384ad84498fd6938a98e56
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/132400
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Magnus Flodman <mflodman@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27550}
144 lines
5.5 KiB
C++
144 lines
5.5 KiB
C++
/*
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* Copyright 2019 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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#include "rtc_base/experiments/rate_control_settings.h"
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#include "api/video_codecs/video_codec.h"
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#include "api/video_codecs/video_encoder_config.h"
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#include "test/field_trial.h"
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#include "test/gtest.h"
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namespace webrtc {
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namespace {
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TEST(RateControlSettingsTest, CongestionWindow) {
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EXPECT_FALSE(
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RateControlSettings::ParseFromFieldTrials().UseCongestionWindow());
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test::ScopedFieldTrials field_trials(
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"WebRTC-CongestionWindow/QueueSize:100/");
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const RateControlSettings settings_after =
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RateControlSettings::ParseFromFieldTrials();
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EXPECT_TRUE(settings_after.UseCongestionWindow());
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EXPECT_EQ(settings_after.GetCongestionWindowAdditionalTimeMs(), 100);
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}
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TEST(RateControlSettingsTest, CongestionWindowPushback) {
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EXPECT_FALSE(RateControlSettings::ParseFromFieldTrials()
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.UseCongestionWindowPushback());
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test::ScopedFieldTrials field_trials(
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"WebRTC-CongestionWindow/QueueSize:100,MinBitrate:100000/");
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const RateControlSettings settings_after =
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RateControlSettings::ParseFromFieldTrials();
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EXPECT_TRUE(settings_after.UseCongestionWindowPushback());
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EXPECT_EQ(settings_after.CongestionWindowMinPushbackTargetBitrateBps(),
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100000u);
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}
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TEST(RateControlSettingsTest, PacingFactor) {
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EXPECT_FALSE(RateControlSettings::ParseFromFieldTrials().GetPacingFactor());
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test::ScopedFieldTrials field_trials(
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"WebRTC-VideoRateControl/pacing_factor:1.2/");
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const RateControlSettings settings_after =
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RateControlSettings::ParseFromFieldTrials();
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// Need to explicitly dereference the absl::optional
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// for the EXPECT_DOUBLE_EQ to compile.
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ASSERT_TRUE(settings_after.GetPacingFactor());
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EXPECT_DOUBLE_EQ(*settings_after.GetPacingFactor(), 1.2);
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}
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TEST(RateControlSettingsTest, AlrProbing) {
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EXPECT_FALSE(RateControlSettings::ParseFromFieldTrials().UseAlrProbing());
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test::ScopedFieldTrials field_trials(
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"WebRTC-VideoRateControl/alr_probing:1/");
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EXPECT_TRUE(RateControlSettings::ParseFromFieldTrials().UseAlrProbing());
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}
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TEST(RateControlSettingsTest, LibvpxTrustedRateController) {
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const RateControlSettings settings_before =
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RateControlSettings::ParseFromFieldTrials();
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EXPECT_FALSE(settings_before.LibvpxVp8TrustedRateController());
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EXPECT_FALSE(settings_before.LibvpxVp9TrustedRateController());
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test::ScopedFieldTrials field_trials(
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"WebRTC-VideoRateControl/trust_vp8:1,trust_vp9:1/");
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const RateControlSettings settings_after =
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RateControlSettings::ParseFromFieldTrials();
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EXPECT_TRUE(settings_after.LibvpxVp8TrustedRateController());
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EXPECT_TRUE(settings_after.LibvpxVp9TrustedRateController());
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}
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TEST(RateControlSettingsTest, GetSimulcastHysteresisFactor) {
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const RateControlSettings settings_before =
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RateControlSettings::ParseFromFieldTrials();
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EXPECT_DOUBLE_EQ(settings_before.GetSimulcastHysteresisFactor(
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VideoCodecMode::kRealtimeVideo),
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1.0);
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EXPECT_DOUBLE_EQ(settings_before.GetSimulcastHysteresisFactor(
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VideoEncoderConfig::ContentType::kRealtimeVideo),
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1.0);
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EXPECT_DOUBLE_EQ(settings_before.GetSimulcastHysteresisFactor(
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VideoCodecMode::kScreensharing),
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1.35);
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EXPECT_DOUBLE_EQ(settings_before.GetSimulcastHysteresisFactor(
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VideoEncoderConfig::ContentType::kScreen),
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1.35);
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test::ScopedFieldTrials field_trials(
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"WebRTC-VideoRateControl/"
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"video_hysteresis:1.2,screenshare_hysteresis:1.4/");
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const RateControlSettings settings_after =
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RateControlSettings::ParseFromFieldTrials();
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EXPECT_DOUBLE_EQ(settings_after.GetSimulcastHysteresisFactor(
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VideoCodecMode::kRealtimeVideo),
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1.2);
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EXPECT_DOUBLE_EQ(settings_after.GetSimulcastHysteresisFactor(
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VideoEncoderConfig::ContentType::kRealtimeVideo),
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1.2);
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EXPECT_DOUBLE_EQ(settings_after.GetSimulcastHysteresisFactor(
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VideoCodecMode::kScreensharing),
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1.4);
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EXPECT_DOUBLE_EQ(settings_after.GetSimulcastHysteresisFactor(
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VideoEncoderConfig::ContentType::kScreen),
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1.4);
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}
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TEST(RateControlSettingsTest, TriggerProbeOnMaxAllocatedBitrateChange) {
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EXPECT_TRUE(RateControlSettings::ParseFromFieldTrials()
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.TriggerProbeOnMaxAllocatedBitrateChange());
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test::ScopedFieldTrials field_trials(
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"WebRTC-VideoRateControl/probe_max_allocation:0/");
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EXPECT_FALSE(RateControlSettings::ParseFromFieldTrials()
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.TriggerProbeOnMaxAllocatedBitrateChange());
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}
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TEST(RateControlSettingsTest, UseEncoderBitrateAdjuster) {
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// Should be off by default.
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EXPECT_FALSE(
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RateControlSettings::ParseFromFieldTrials().UseEncoderBitrateAdjuster());
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{
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// Can be turned on via field trial.
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test::ScopedFieldTrials field_trials(
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"WebRTC-VideoRateControl/bitrate_adjuster:true/");
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EXPECT_TRUE(RateControlSettings::ParseFromFieldTrials()
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.UseEncoderBitrateAdjuster());
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}
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}
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} // namespace
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} // namespace webrtc
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