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/*
 *  Copyright 2012 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/test/integration_test_helpers.h"

namespace webrtc {

PeerConnectionInterface::RTCOfferAnswerOptions IceRestartOfferAnswerOptions() {
  PeerConnectionInterface::RTCOfferAnswerOptions options;
  options.ice_restart = true;
  return options;
}

void RemoveSsrcsAndMsids(cricket::SessionDescription* desc) {
  for (ContentInfo& content : desc->contents()) {
    content.media_description()->mutable_streams().clear();
  }
  desc->set_msid_supported(false);
  desc->set_msid_signaling(0);
}

void RemoveSsrcsAndKeepMsids(cricket::SessionDescription* desc) {
  for (ContentInfo& content : desc->contents()) {
    std::string track_id;
    std::vector<std::string> stream_ids;
    if (!content.media_description()->streams().empty()) {
      const StreamParams& first_stream =
          content.media_description()->streams()[0];
      track_id = first_stream.id;
      stream_ids = first_stream.stream_ids();
    }
    content.media_description()->mutable_streams().clear();
    StreamParams new_stream;
    new_stream.id = track_id;
    new_stream.set_stream_ids(stream_ids);
    content.media_description()->AddStream(new_stream);
  }
}

int FindFirstMediaStatsIndexByKind(
    const std::string& kind,
    const std::vector<const webrtc::RTCMediaStreamTrackStats*>&
        media_stats_vec) {
  for (size_t i = 0; i < media_stats_vec.size(); i++) {
    if (media_stats_vec[i]->kind.ValueToString() == kind) {
      return i;
    }
  }
  return -1;
}

TaskQueueMetronome::TaskQueueMetronome(TaskQueueFactory* factory,
                                       TimeDelta tick_period)
    : tick_period_(tick_period),
      queue_(factory->CreateTaskQueue("MetronomeQueue",
                                      TaskQueueFactory::Priority::HIGH)) {
  tick_task_ = RepeatingTaskHandle::Start(queue_.Get(), [this] {
    MutexLock lock(&mutex_);
    for (auto* listener : listeners_) {
      listener->OnTickTaskQueue()->PostTask([listener] { listener->OnTick(); });
    }
    return tick_period_;
  });
}

TaskQueueMetronome::~TaskQueueMetronome() {
  RTC_DCHECK(listeners_.empty());
  rtc::Event stop_event;
  queue_.PostTask([this, &stop_event] {
    tick_task_.Stop();
    stop_event.Set();
  });
  stop_event.Wait(1000);
}

void TaskQueueMetronome::AddListener(TickListener* listener) {
  MutexLock lock(&mutex_);
  auto [it, inserted] = listeners_.insert(listener);
  RTC_DCHECK(inserted);
}

void TaskQueueMetronome::RemoveListener(TickListener* listener) {
  MutexLock lock(&mutex_);
  auto it = listeners_.find(listener);
  RTC_DCHECK(it != listeners_.end());
  listeners_.erase(it);
}

TimeDelta TaskQueueMetronome::TickPeriod() const {
  return tick_period_;
}

}  // namespace webrtc