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/*
* 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 "modules/audio_coding/audio_network_adaptor/dtx_controller.h"
#include "rtc_base/checks.h"
namespace webrtc {
DtxController::Config::Config(bool initial_dtx_enabled,
int dtx_enabling_bandwidth_bps,
int dtx_disabling_bandwidth_bps)
: initial_dtx_enabled(initial_dtx_enabled),
dtx_enabling_bandwidth_bps(dtx_enabling_bandwidth_bps),
dtx_disabling_bandwidth_bps(dtx_disabling_bandwidth_bps) {}
DtxController::DtxController(const Config& config)
: config_(config), dtx_enabled_(config_.initial_dtx_enabled) {}
DtxController::~DtxController() = default;
void DtxController::UpdateNetworkMetrics(
const NetworkMetrics& network_metrics) {
if (network_metrics.uplink_bandwidth_bps)
uplink_bandwidth_bps_ = network_metrics.uplink_bandwidth_bps;
}
void DtxController::MakeDecision(AudioEncoderRuntimeConfig* config) {
// Decision on `enable_dtx` should not have been made.
RTC_DCHECK(!config->enable_dtx);
if (uplink_bandwidth_bps_) {
if (dtx_enabled_ &&
*uplink_bandwidth_bps_ >= config_.dtx_disabling_bandwidth_bps) {
dtx_enabled_ = false;
} else if (!dtx_enabled_ &&
*uplink_bandwidth_bps_ <= config_.dtx_enabling_bandwidth_bps) {
dtx_enabled_ = true;
}
}
config->enable_dtx = dtx_enabled_;
}
} // namespace webrtc
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