Ejemplo n.º 1
0
    def _parse(self, data):
        lines = data.split("\n")

        line = lines.pop(0)
        while line != 'parameters':
            print "not parameter " + line
            line = lines.pop(0)

        # Reading parameters
        while len(lines) > 0 and line != 'instruments':
            if len(line) > 0 and line[0] != '#':
                line_array = line.split(' ')
                if line_array[0] == 'speed':
                    self.speed = int(line_array[1])
                elif line_array[0] == 'measure_resolution':
                    self.measure_resolution = int(line_array[1])
                elif line_array[0] == 'beats_per_measure':
                    self.beats_per_measure = int(line_array[1])
            line = lines.pop(0)
        self._update_sleep_interval()


        # Reading instruments
        line = lines.pop(0)
        while len(lines) > 0 and line != 'rhythm':
            if len(line) > 0 and line[0] != '#':
                instrument = instruments.parse(line.split(' '), self.sample_rate, self.buffer_size)
                self.add_instrument(instrument)
            line = lines.pop(0)

        # Reading Rhythm pattern
        line = lines.pop(0)
        while len(lines) > 0 and line != 'gains':
            if len(line) > 0 and line[0] != '#':
                line = line.split('|')[-1]

                instr_str = line.split(':')[0].split()
                instrument_id = int(instr_str[0])
                instrument_tone = int(instr_str[1])

                rhythm = line.split(':')[1].split()[0:self.measure_resolution]
                rhythm = [int(c) for c in rhythm]

                track = Track(instrument_id, instrument_tone, rhythm, rhythm, '')
                self.add_track(track)

            line = lines.pop(0)
Ejemplo n.º 2
0
if __name__ == "__main__":

    parser = argparse.ArgumentParser(description='MSP homework 9')
    parser.add_argument('score', type=str)
    parser.add_argument('-i', '--instrument', type=str, default=DEFAULT_INSTRUMENT)
    parser.add_argument('-s', '--speed', type=int, default=DEFAULT_SPEED)
    namespace = parser.parse_args()

    dac = DAC(bufferSize=2 ** 10, rate=44100)
    dac.start()

    try:
        sequencer = Sequencer(buffer_size=dac.bufferSize, sample_rate=dac.getSamplerate(), speed=namespace.speed)
        dac.connect(sequencer.callback)

        instrument = instruments.parse(namespace.instrument.split(),
                                       buffer_size=dac.bufferSize,
                                       sample_rate=dac.getSamplerate())

        sequencer.add_instrument(instrument)

        file = open(namespace.score, 'r')
        score_string = file.read()
        file.close()
        score = Sequencer.parse_mono_score(score_string)

        sequencer.play(score=score)

    finally:
        dac.stop()