Index: webrtc/modules/audio_coding/audio_network_adaptor/dtx_controller.cc |
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/dtx_controller.cc b/webrtc/modules/audio_coding/audio_network_adaptor/dtx_controller.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..30030d14be70a3957b8c702e91a4c732effcc536 |
--- /dev/null |
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/dtx_controller.cc |
@@ -0,0 +1,45 @@ |
+/* |
+ * 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 "webrtc/modules/audio_coding/audio_network_adaptor/dtx_controller.h" |
+#include "webrtc/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) {} |
+ |
+void DtxController::MakeDecision( |
+ const NetworkMetrics& metrics, |
+ AudioNetworkAdaptor::EncoderRuntimeConfig* config) { |
+ // Decision on |enable_dtx| should not have been made. |
+ RTC_DCHECK(!config->enable_dtx); |
+ |
+ if (metrics.uplink_bandwidth_bps) { |
+ if (dtx_enabled_ && |
+ *metrics.uplink_bandwidth_bps >= config_.dtx_disabling_bandwidth_bps) { |
+ dtx_enabled_ = false; |
+ } else if (!dtx_enabled_ && |
+ *metrics.uplink_bandwidth_bps <= |
+ config_.dtx_enabling_bandwidth_bps) { |
+ dtx_enabled_ = true; |
+ } |
+ } |
+ config->enable_dtx = rtc::Optional<bool>(dtx_enabled_); |
+} |
+ |
+} // namespace webrtc |