// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/browser/renderer_host/media/audio_output_stream_observer_impl.h"

#include "content/browser/media/audio_stream_monitor.h"
#include "content/public/browser/browser_thread.h"

namespace content {

AudioOutputStreamObserverImpl::AudioOutputStreamObserverImpl(
    int render_process_id,
    int render_frame_id,
    int stream_id)
    : render_frame_host_id_(render_process_id, render_frame_id),
      stream_id_(stream_id) {}

AudioOutputStreamObserverImpl::~AudioOutputStreamObserverImpl() {
  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
  if (did_start_playing_)
    DidStopPlaying();
}

void AudioOutputStreamObserverImpl::DidStartPlaying() {
  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
  did_start_playing_ = true;
  AudioStreamMonitor::StartMonitoringStream(render_frame_host_id_, stream_id_);
}
void AudioOutputStreamObserverImpl::DidStopPlaying() {
  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
  AudioStreamMonitor::StopMonitoringStream(render_frame_host_id_, stream_id_);
  did_start_playing_ = false;
}

void AudioOutputStreamObserverImpl::DidChangeAudibleState(bool is_audible) {
  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
  AudioStreamMonitor::UpdateStreamAudibleState(render_frame_host_id_,
                                               stream_id_, is_audible);
}

}  // namespace content