1 files changed, 74 insertions, 0 deletions
diff --git a/logging/rtc_event_log/events/rtc_event_begin_log.h b/logging/rtc_event_log/events/rtc_event_begin_log.h
new file mode 100644
index 0000000000..f3b74c117e
--- /dev/null
+++ b/logging/rtc_event_log/events/rtc_event_begin_log.h
@@ -0,0 +1,74 @@
+/*
+ *  Copyright (c) 2021 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 LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_BEGIN_LOG_H_
+#define LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_BEGIN_LOG_H_
+
+#include <string>
+#include <vector>
+
+#include "absl/strings/string_view.h"
+#include "api/array_view.h"
+#include "api/rtc_event_log/rtc_event.h"
+#include "api/units/timestamp.h"
+#include "logging/rtc_event_log/events/rtc_event_field_encoding.h"
+#include "logging/rtc_event_log/events/rtc_event_field_encoding_parser.h"
+#include "logging/rtc_event_log/events/rtc_event_field_extraction.h"
+
+namespace webrtc {
+
+struct LoggedStartEvent {
+  LoggedStartEvent() = default;
+
+  explicit LoggedStartEvent(Timestamp timestamp)
+      : LoggedStartEvent(timestamp, timestamp) {}
+
+  LoggedStartEvent(Timestamp timestamp, Timestamp utc_start_time)
+      : timestamp(timestamp), utc_start_time(utc_start_time) {}
+
+  int64_t log_time_us() const { return timestamp.us(); }
+  int64_t log_time_ms() const { return timestamp.ms(); }
+  Timestamp log_time() const { return timestamp; }
+
+  Timestamp utc_time() const { return utc_start_time; }
+
+  Timestamp timestamp = Timestamp::PlusInfinity();
+  Timestamp utc_start_time = Timestamp::PlusInfinity();
+};
+
+class RtcEventBeginLog final : public RtcEvent {
+ public:
+  static constexpr Type kType = Type::BeginV3Log;
+
+  RtcEventBeginLog(Timestamp timestamp, Timestamp utc_start_time);
+  ~RtcEventBeginLog() override;
+
+  Type GetType() const override { return kType; }
+  bool IsConfigEvent() const override { return false; }
+
+  static std::string Encode(rtc::ArrayView<const RtcEvent*> batch);
+
+  static RtcEventLogParseStatus Parse(absl::string_view encoded_bytes,
+                                      bool batched,
+                                      std::vector<LoggedStartEvent>& output);
+
+ private:
+  RtcEventBeginLog(const RtcEventBeginLog& other);
+
+  int64_t utc_start_time_ms_;
+
+  static constexpr EventParameters event_params_{"BeginLog",
+                                                 RtcEventBeginLog::kType};
+  static constexpr FieldParameters utc_start_time_params_{
+      "utc_start_time_ms", /*id=*/1, FieldType::kVarInt, /*width=*/64};
+};
+
+}  // namespace webrtc
+#endif  // LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_BEGIN_LOG_H_