MidiSheetMusic.MidiFile.GuessMeasureLength C# (CSharp) Метод

        public List<int> GuessMeasureLength()
        {
            List<int> result = new List<int>();

            int pulses_per_second = (int) (1000000.0 / timesig.Tempo * timesig.Quarter);
            int minmeasure = pulses_per_second / 2;  /* The minimum measure length in pulses */
            int maxmeasure = pulses_per_second * 4;  /* The maximum measure length in pulses */

            /* Get the start time of the first note in the midi file. */
            int firstnote = timesig.Measure * 5;
            foreach (MidiTrack track in tracks) {
            if (firstnote > track.Notes[0].StartTime) {
                firstnote = track.Notes[0].StartTime;
            }
            }

            /* interval = 0.06 seconds, converted into pulses */
            int interval = timesig.Quarter * 60000 / timesig.Tempo;

            foreach (MidiTrack track in tracks) {
            int prevtime = 0;
            foreach (MidiNote note in track.Notes) {
                if (note.StartTime - prevtime <= interval)
                    continue;

                prevtime = note.StartTime;

                int time_from_firstnote = note.StartTime - firstnote;

                /* Round the time down to a multiple of 4 */
                time_from_firstnote = time_from_firstnote / 4 * 4;
                if (time_from_firstnote < minmeasure)
                    continue;
                if (time_from_firstnote > maxmeasure)
                    break;

                if (!result.Contains(time_from_firstnote)) {
                    result.Add(time_from_firstnote);
                }
            }
            }
            result.Sort();
            return result;
        }