Not for submission. fastSeek prototype.

media/base/stream_position.cc

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <sstream>
+
+#include "media/base/stream_position.h"
+
+namespace media {
+
+// static
+StreamPosition StreamPosition::Precise(base::TimeDelta time) {
+  return {Kind::PRECISE, time};
+}
+
+// static
+StreamPosition StreamPosition::KeyFramePrecedingTime(base::TimeDelta time) {
+  return {Kind::KEY_FRAME_PRECEDING_TIME, time};
+}
+
+bool StreamPosition::operator==(const StreamPosition& other) {
+  return kind == other.kind && time == other.time;
+}
+
+std::string ToString(StreamPosition position) {
+  std::ostringstream s;
+  s << "[" << (position.kind == StreamPosition::Kind::PRECISE
+                   ? "PRECISE: "
+                   : "KEY_FRAME_PRECEDING_TIME: ")
+    << position.time.InMicroseconds() << " us]";
+  return s.str();
+}
+
+}  // namespace media