| /* |
| * Copyright (c) 2017 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. |
| */ |
| |
| #ifndef WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_FEC_CONTROLLER_RPLR_BASED_H_ |
| #define WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_FEC_CONTROLLER_RPLR_BASED_H_ |
| |
| #include <memory> |
| |
| #include "webrtc/modules/audio_coding/audio_network_adaptor/controller.h" |
| #include "webrtc/modules/audio_coding/audio_network_adaptor/util/threshold_curve.h" |
| #include "webrtc/rtc_base/constructormagic.h" |
| |
| namespace webrtc { |
| |
| class FecControllerRplrBased final : public Controller { |
| public: |
| struct Config { |
| // |fec_enabling_threshold| defines a curve, above which FEC should be |
| // enabled. |fec_disabling_threshold| defines a curve, under which FEC |
| // should be disabled. See below |
| // |
| // recoverable |
| // packet-loss ^ | | |
| // | | | FEC |
| // | \ \ ON |
| // | FEC \ \_______ fec_enabling_threshold |
| // | OFF \_________ fec_disabling_threshold |
| // |-----------------> bandwidth |
| Config(bool initial_fec_enabled, |
| const ThresholdCurve& fec_enabling_threshold, |
| const ThresholdCurve& fec_disabling_threshold); |
| bool initial_fec_enabled; |
| ThresholdCurve fec_enabling_threshold; |
| ThresholdCurve fec_disabling_threshold; |
| }; |
| |
| explicit FecControllerRplrBased(const Config& config); |
| |
| ~FecControllerRplrBased() override; |
| |
| void UpdateNetworkMetrics(const NetworkMetrics& network_metrics) override; |
| |
| void MakeDecision(AudioEncoderRuntimeConfig* config) override; |
| |
| private: |
| bool FecEnablingDecision() const; |
| bool FecDisablingDecision() const; |
| |
| const Config config_; |
| bool fec_enabled_; |
| rtc::Optional<int> uplink_bandwidth_bps_; |
| rtc::Optional<float> uplink_recoverable_packet_loss_; |
| |
| RTC_DISALLOW_COPY_AND_ASSIGN(FecControllerRplrBased); |
| }; |
| |
| } // namespace webrtc |
| |
| #endif // WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_FEC_CONTROLLER_RPLR_BASED_H_ |