private void OnCurrentPlayTimeChanged(int time)
        {
            if (current_lyrics == null)
            {
                return;
            }

            time += Setting.GobalTimeOffset;

            var sentence_query = current_lyrics.GetCurrentSentence(time);
            var sentence       = sentence_query.Item1;

            if (prev_index != sentence_query.Item2)
            {
                Utils.Debug($"[cur:{time} now:{sentence_query.Item1.StartTime}]{sentence_query.Item1.Content}");
                prev_index = sentence_query.Item2;
            }
            else
            {
                if (Setting.ForceKeepTime != 0 && time - sentence.StartTime > Setting.ForceKeepTime)
                {
                    sentence = Sentence.Empty;
                }
            }

            OutputLyricSentence(sentence);
        }
 public Sentence GetLyricsSentence(int time)
 {
     return(current_lyrics?.GetCurrentSentence(time).Item1 ?? Sentence.Empty);
 }