rtc_event_audio_playout.h

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/*

 *  Copyright (c) 2017 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_AUDIO_PLAYOUT_H_

#define LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_AUDIO_PLAYOUT_H_

#include <stdint.h>

#include <map>

#include <memory>

#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_definition.h"

#include "logging/rtc_event_log/events/rtc_event_field_encoding.h"

#include "logging/rtc_event_log/events/rtc_event_log_parse_status.h"

namespace webrtc {

struct LoggedAudioPlayoutEvent {

  LoggedAudioPlayoutEvent() = default;

  LoggedAudioPlayoutEvent(Timestamp timestamp, uint32_t ssrc)

      : timestamp(timestamp), ssrc(ssrc) {}

  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 timestamp = Timestamp::MinusInfinity();

  uint32_t ssrc;

};

class RtcEventAudioPlayout final : public RtcEvent {

 public:

  static constexpr Type kType = Type::AudioPlayout;

  explicit RtcEventAudioPlayout(uint32_t ssrc);

  ~RtcEventAudioPlayout() override = default;

  Type GetType() const override { return kType; }

  bool IsConfigEvent() const override { return false; }

  std::unique_ptr<RtcEventAudioPlayout> Copy() const;

  uint32_t ssrc() const { return ssrc_; }

  static std::string Encode(rtc::ArrayView<const RtcEvent*> batch) {

    return RtcEventAudioPlayout::definition_.EncodeBatch(batch);

  static RtcEventLogParseStatus Parse(

      absl::string_view encoded_bytes,

      bool batched,

      std::map<uint32_t, std::vector<LoggedAudioPlayoutEvent>>& output) {

    std::vector<LoggedAudioPlayoutEvent> temp_output;

    auto status = RtcEventAudioPlayout::definition_.ParseBatch(

        encoded_bytes, batched, temp_output);

    for (const LoggedAudioPlayoutEvent& event : temp_output) {

      output[event.ssrc].push_back(event);

    return status;

 private:

  RtcEventAudioPlayout(const RtcEventAudioPlayout& other);

  const uint32_t ssrc_;

  static constexpr RtcEventDefinition<RtcEventAudioPlayout,

                                      LoggedAudioPlayoutEvent,

                                      uint32_t>

      definition_{{"AudioPlayout", RtcEventAudioPlayout::kType},

                  {&RtcEventAudioPlayout::ssrc_,

                   &LoggedAudioPlayoutEvent::ssrc,

                   {"ssrc", /*id=*/1, FieldType::kFixed32, /*width=*/32}}};

};

}  // namespace webrtc

#endif  // LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_AUDIO_PLAYOUT_H_