1 files changed, 41 insertions, 0 deletions
diff --git a/third_party/libwebrtc/pc/jitter_buffer_delay.h b/third_party/libwebrtc/pc/jitter_buffer_delay.h
new file mode 100644
index 0000000000..a6bec01ce7
--- /dev/null
+++ b/third_party/libwebrtc/pc/jitter_buffer_delay.h
@@ -0,0 +1,41 @@
+/*
+ *  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.
+ */
+
+#ifndef PC_JITTER_BUFFER_DELAY_H_
+#define PC_JITTER_BUFFER_DELAY_H_
+
+#include <stdint.h>
+
+#include "absl/types/optional.h"
+#include "api/sequence_checker.h"
+#include "rtc_base/system/no_unique_address.h"
+#include "rtc_base/thread_annotations.h"
+
+namespace webrtc {
+
+// JitterBufferDelay converts delay from seconds to milliseconds for the
+// underlying media channel. It also handles cases when user sets delay before
+// the start of media_channel by caching its request.
+class JitterBufferDelay {
+ public:
+  JitterBufferDelay();
+
+  void Set(absl::optional<double> delay_seconds);
+  int GetMs() const;
+
+ private:
+  RTC_NO_UNIQUE_ADDRESS SequenceChecker worker_thread_checker_;
+  absl::optional<double> cached_delay_seconds_
+      RTC_GUARDED_BY(&worker_thread_checker_);
+};
+
+}  // namespace webrtc
+
+#endif  // PC_JITTER_BUFFER_DELAY_H_