Line data    Source code

       1             : /*
       2             :  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
       3             :  *
       4             :  *  Use of this source code is governed by a BSD-style license
       5             :  *  that can be found in the LICENSE file in the root of the source
       6             :  *  tree. An additional intellectual property rights grant can be found
       7             :  *  in the file PATENTS.  All contributing project authors may
       8             :  *  be found in the AUTHORS file in the root of the source tree.
       9             :  */
      10             : 
      11             : #include "webrtc/modules/audio_coding/audio_network_adaptor/dtx_controller.h"
      12             : #include "webrtc/base/checks.h"
      13             : 
      14             : namespace webrtc {
      15             : 
      16           0 : DtxController::Config::Config(bool initial_dtx_enabled,
      17             :                               int dtx_enabling_bandwidth_bps,
      18           0 :                               int dtx_disabling_bandwidth_bps)
      19             :     : initial_dtx_enabled(initial_dtx_enabled),
      20             :       dtx_enabling_bandwidth_bps(dtx_enabling_bandwidth_bps),
      21           0 :       dtx_disabling_bandwidth_bps(dtx_disabling_bandwidth_bps) {}
      22             : 
      23           0 : DtxController::DtxController(const Config& config)
      24           0 :     : config_(config), dtx_enabled_(config_.initial_dtx_enabled) {}
      25             : 
      26           0 : void DtxController::MakeDecision(
      27             :     const NetworkMetrics& metrics,
      28             :     AudioNetworkAdaptor::EncoderRuntimeConfig* config) {
      29             :   // Decision on |enable_dtx| should not have been made.
      30           0 :   RTC_DCHECK(!config->enable_dtx);
      31             : 
      32           0 :   if (metrics.uplink_bandwidth_bps) {
      33           0 :     if (dtx_enabled_ &&
      34           0 :         *metrics.uplink_bandwidth_bps >= config_.dtx_disabling_bandwidth_bps) {
      35           0 :       dtx_enabled_ = false;
      36           0 :     } else if (!dtx_enabled_ &&
      37           0 :                *metrics.uplink_bandwidth_bps <=
      38           0 :                    config_.dtx_enabling_bandwidth_bps) {
      39           0 :       dtx_enabled_ = true;
      40             :     }
      41             :   }
      42           0 :   config->enable_dtx = rtc::Optional<bool>(dtx_enabled_);
      43           0 : }
      44             : 
      45             : }  // namespace webrtc