1 files changed, 42 insertions, 0 deletions
diff --git a/third_party/libwebrtc/pc/jitter_buffer_delay.cc b/third_party/libwebrtc/pc/jitter_buffer_delay.cc
new file mode 100644
index 0000000000..801cef7215
--- /dev/null
+++ b/third_party/libwebrtc/pc/jitter_buffer_delay.cc
@@ -0,0 +1,42 @@
+/*
+ *  Copyright 2019 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 "pc/jitter_buffer_delay.h"
+
+#include "api/sequence_checker.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/numerics/safe_conversions.h"
+#include "rtc_base/numerics/safe_minmax.h"
+
+namespace {
+constexpr int kDefaultDelay = 0;
+constexpr int kMaximumDelayMs = 10000;
+}  // namespace
+
+namespace webrtc {
+
+JitterBufferDelay::JitterBufferDelay() {
+  worker_thread_checker_.Detach();
+}
+
+void JitterBufferDelay::Set(absl::optional<double> delay_seconds) {
+  RTC_DCHECK_RUN_ON(&worker_thread_checker_);
+  cached_delay_seconds_ = delay_seconds;
+}
+
+int JitterBufferDelay::GetMs() const {
+  RTC_DCHECK_RUN_ON(&worker_thread_checker_);
+  return rtc::SafeClamp(
+      rtc::saturated_cast<int>(cached_delay_seconds_.value_or(kDefaultDelay) *
+                               1000),
+      0, kMaximumDelayMs);
+}
+
+}  // namespace webrtc