| /* |
| * 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 <memory> |
| |
| #include "webrtc/modules/audio_coding/audio_network_adaptor/dtx_controller.h" |
| #include "webrtc/test/gtest.h" |
| |
| namespace webrtc { |
| |
| namespace { |
| |
| constexpr int kDtxEnablingBandwidthBps = 55000; |
| constexpr int kDtxDisablingBandwidthBps = 65000; |
| constexpr int kMediumBandwidthBps = |
| (kDtxEnablingBandwidthBps + kDtxDisablingBandwidthBps) / 2; |
| |
| std::unique_ptr<DtxController> CreateController(int initial_dtx_enabled) { |
| std::unique_ptr<DtxController> controller(new DtxController( |
| DtxController::Config(initial_dtx_enabled, kDtxEnablingBandwidthBps, |
| kDtxDisablingBandwidthBps))); |
| return controller; |
| } |
| |
| void CheckDecision(DtxController* controller, |
| const rtc::Optional<int>& uplink_bandwidth_bps, |
| bool expected_dtx_enabled) { |
| if (uplink_bandwidth_bps) { |
| Controller::NetworkMetrics network_metrics; |
| network_metrics.uplink_bandwidth_bps = uplink_bandwidth_bps; |
| controller->UpdateNetworkMetrics(network_metrics); |
| } |
| AudioEncoderRuntimeConfig config; |
| controller->MakeDecision(&config); |
| EXPECT_EQ(rtc::Optional<bool>(expected_dtx_enabled), config.enable_dtx); |
| } |
| |
| } // namespace |
| |
| TEST(DtxControllerTest, OutputInitValueWhenUplinkBandwidthUnknown) { |
| constexpr bool kInitialDtxEnabled = true; |
| auto controller = CreateController(kInitialDtxEnabled); |
| CheckDecision(controller.get(), rtc::Optional<int>(), kInitialDtxEnabled); |
| } |
| |
| TEST(DtxControllerTest, TurnOnDtxForLowUplinkBandwidth) { |
| auto controller = CreateController(false); |
| CheckDecision(controller.get(), rtc::Optional<int>(kDtxEnablingBandwidthBps), |
| true); |
| } |
| |
| TEST(DtxControllerTest, TurnOffDtxForHighUplinkBandwidth) { |
| auto controller = CreateController(true); |
| CheckDecision(controller.get(), rtc::Optional<int>(kDtxDisablingBandwidthBps), |
| false); |
| } |
| |
| TEST(DtxControllerTest, MaintainDtxOffForMediumUplinkBandwidth) { |
| auto controller = CreateController(false); |
| CheckDecision(controller.get(), rtc::Optional<int>(kMediumBandwidthBps), |
| false); |
| } |
| |
| TEST(DtxControllerTest, MaintainDtxOnForMediumUplinkBandwidth) { |
| auto controller = CreateController(true); |
| CheckDecision(controller.get(), rtc::Optional<int>(kMediumBandwidthBps), |
| true); |
| } |
| |
| TEST(DtxControllerTest, CheckBehaviorOnChangingUplinkBandwidth) { |
| auto controller = CreateController(false); |
| CheckDecision(controller.get(), rtc::Optional<int>(kMediumBandwidthBps), |
| false); |
| CheckDecision(controller.get(), rtc::Optional<int>(kDtxEnablingBandwidthBps), |
| true); |
| CheckDecision(controller.get(), rtc::Optional<int>(kMediumBandwidthBps), |
| true); |
| CheckDecision(controller.get(), rtc::Optional<int>(kDtxDisablingBandwidthBps), |
| false); |
| } |
| |
| } // namespace webrtc |