void
ChannelMediaDecoder::ResourceCallback::NotifySuspendedStatusChanged(
  bool aSuspendedByCache)
{
  MOZ_ASSERT(NS_IsMainThread());
  DDLOGEX2("ChannelMediaDecoder::ResourceCallback",
           this,
           DDLogCategory::Log,
           "suspended_status_changed",
           aSuspendedByCache);
  MediaDecoderOwner* owner = GetMediaOwner();
  if (owner) {
    AbstractThread::AutoEnter context(owner->AbstractMainThread());
    owner->NotifySuspendedByCache(aSuspendedByCache);
  }
}
void
ChannelMediaDecoder::NotifyDownloadEnded(nsresult aStatus)
{
  MOZ_ASSERT(NS_IsMainThread());
  MOZ_DIAGNOSTIC_ASSERT(!IsShutdown());
  AbstractThread::AutoEnter context(AbstractMainThread());

  LOG("NotifyDownloadEnded, status=%" PRIx32, static_cast<uint32_t>(aStatus));

  if (NS_SUCCEEDED(aStatus)) {
    // Download ends successfully. This is a stream with a finite length.
    GetStateMachine()->DispatchIsLiveStream(false);
  }

  MediaDecoderOwner* owner = GetOwner();
  if (NS_SUCCEEDED(aStatus) || aStatus == NS_BASE_STREAM_CLOSED) {
    nsCOMPtr<nsIRunnable> r =
      NS_NewRunnableFunction("ChannelMediaDecoder::UpdatePlaybackRate", [
        stats = mPlaybackStatistics,
        res = RefPtr<BaseMediaResource>(mResource),
        duration = mDuration
      ]() {
        auto rate = ComputePlaybackRate(stats, res, duration);
        UpdatePlaybackRate(rate, res);
      });
    nsresult rv = GetStateMachine()->OwnerThread()->Dispatch(r.forget());
    MOZ_DIAGNOSTIC_ASSERT(NS_SUCCEEDED(rv));
    Unused << rv;
    owner->DownloadSuspended();
    // NotifySuspendedStatusChanged will tell the element that download
    // has been suspended "by the cache", which is true since we never
    // download anything. The element can then transition to HAVE_ENOUGH_DATA.
    owner->NotifySuspendedByCache(true);
  } else if (aStatus == NS_BINDING_ABORTED) {
    // Download has been cancelled by user.
    owner->LoadAborted();
  } else {
    NetworkError(MediaResult(aStatus, "Download aborted"));
  }
}