Python mido.open_input函数代码示例

 def __init__(self, turtle, devname, cb=False):
     self.turtle = turtle
     if cb:
         self.midi_in = mido.open_input(devname, callback=self.midi_callback)
     else:
         self.midi_in = mido.open_input(devname)
     self.midi_out = mido.open_output(devname)
     self.rgb = True
     self.size = 1
     self._update_rgb_indicator()

    def eloop(self, render_callback):
        cb = callback_factory(render_callback)
        try:
            midin = mido.open_input(
                name=self.port, virtual=True, callback=cb)
        except IOError:  # couldn't create virtual port
            midin = mido.open_input(name=self.port, callback=cb)
        except:
            raise complain.ComplainToUser("Could not find a valid MIDI input")

        midin.close()

    def __init__(self, input=None, output=None):
        if input is None:
            try:
                input = mido.open_input('Launchpad S', callback=True)
            except IOError:
                input = mido.open_input('Launchpad S MIDI 1', callback=True)
        if output is None:
            try:
                output = mido.open_output('Launchpad S')
            except IOError:
                output = mido.open_output('Launchpad S MIDI 1')

        super(LaunchpadS, self).__init__(input, output)

    def messages(self):
        if not mido:
            raise ValueError(MIDO_ERROR)
        try:
            input_names = mido.get_input_names()
        except AttributeError as e:
            e.args = (MIDO_ERROR,) + e.args
            raise

        ports = [mido.open_input(i) for i in input_names]

        if not ports:
            log.error('control.midi: no MIDI ports found')
            return

        port_names = ', '.join('"%s"' % p.name for p in ports)
        log.info('Starting to listen for MIDI on port%s %s',
                 '' if len(ports) == 1 else 's', port_names)
        for port, msg in mido.ports.MultiPort(ports, yield_ports=True):
            mdict = dict(vars(msg), port=port)

            if self.use_note_off:
                if msg.type == 'note_on' and not msg.velocity:
                    mdict.update(type='note_off')
            elif self.use_note_off is False:
                if msg.type == 'note_off':
                    mdict.update(type='note_on', velocity=0)

            yield mdict

    def start_key_thread(self):
        port_name = mido.get_input_names()[0]
        with mido.open_input(port_name) as inport:
            for msg in inport:

                if self.done: return
                if not self.current_note_to_play:
                    print("cannot play notes during this state!")
                    continue

                if hasattr(msg, 'note') and hasattr(msg, 'velocity') and msg.velocity > 0:
                    print(msg.note)
                    self.total_notes += 1
                    self.display_total_notes = self.info_font.render("Total Notes: " + str(self.total_notes), True,
                                                                     (205, 92, 92))
                if hasattr(msg, 'note') and msg.note % 12 == self.current_note_to_play % 12 and hasattr(msg,
                                                                                                        'velocity') and msg.velocity > 0:
                    self.notes_correct += 1
                    self.display_note = self.note_font.render("Correct!!!", True, (0, 128, 0))
                    self.display_notes_correct = self.info_font.render("Correct Notes: " + str(self.notes_correct),
                                                                       True, (205, 92, 92))
                    self.display_average_tries = self.info_font.render(
                        "Average Tries: " + str(round(self.total_notes / self.notes_correct)), True, (205, 92, 92))

                    self.average_note_time += time.time() - self.note_start_time
                    self.display_average_time = self.info_font.render(
                        "Average Time: " + str(round(self.average_note_time / self.notes_correct, 1)) + " seconds",
                        True,
                        (205, 92, 92))
                    self.current_note_to_play = 0
                    Thread(target=self.new_note()).start()

    def __init__(self, port_name, trace=False):
        """
        Construct new MIDIReceiver object.
        DO NOT instinate directly, use get_midi_receiver function instead.

        ARGS:
          port_name - String.
                      For a list of available ports execute the mido-ports
                      script on the command line. 
        """
        self._dispatch_table = {"note_on" : {},
                                "note_off" : {},
                                "program_change" : {},
                                "aftertouch" : {},
                                "control_change" : {},
                                "pitchwheel" : {},
                                "polytouch" : {},
                                "sysex" : {},
                                "quarter_frame" : {},
                                "songpos" : {},
                                "song_select" : {},
                                "tune_request" : {},
                                "clock" : {},
                                "start" : {},
                                "continue" : {},
                                "stop" : {},
                                "reset" : {},
                                "active_sensing" : {}}
        self._port_name = port_name
        self._port = mido.open_input(self._port_name)
        self._thread = None
        self._active = False
        self.enable_trace(trace)

def play_from_encoder(directory):
    encoder = pickle_loader(directory + ".pkl")
    sample_rate = encoder.sample_rate
    buffer_size = 10 # sample buffer for playback. Hevent really determined what i does qualitatively. Probably affects latency
    play_duration = 100 # play duration in miliseconds
    pygame.mixer.pre_init(sample_rate, -16, 2,buffer = buffer_size) # 44.1kHz, 16-bit signed, stereo
    pygame.init()
    volLeft = 0.5;volRight=0.5 # Volume
    z_val = np.zeros([1,encoder.dimZ]) # Initial latent variable values
    port = mido.open_input(mido.get_input_names()[0]) # midi port. chooses the first midi device it detects.
    while True:
        mu_out = encoder.generateOutput(z_val)
        for msg in port.iter_pending():
            if msg.channel < z_val.shape[1]:
                z_val[0,msg.channel] = msg.value
            else:
                print "Midi channel beyond latent variables"
        mu_out = map_to_range_symmetric(mu_out,[-1,1],[-32768,32768])
        mu_out = mu_out.astype(np.int16)
        mu_out = np.array(zip(mu_out,mu_out)) # make stereo channel with same output
        sound = pygame.sndarray.make_sound(mu_out)
        channel = sound.play(-1)
        channel.set_volume(volLeft,volRight)
        pygame.time.delay(play_duration)
        sound.stop()

    def capture(self):
        self.capturing = False
        self.final_tick = False
        # Start clocks at -1 to account for Circuit's leading clock message after start
        self.clocks = [-1, -1, -1]
        self.total_ticks = 0

        output_dir = os.path.dirname(self.output)
        if not os.path.exists(output_dir):
            os.makedirs(output_dir)

        mido.set_backend('mido.backends.rtmidi')

        with mido.MidiFile(type=1, ticks_per_beat=TICKS_PER_BEAT) as mid:
            # Create tracks
            self.tempo_map_track = mid.add_track(name=SONG_NAME)
            self.tracks = [mid.add_track(name="Synth 1"),
                mid.add_track(name="Synth 2"),
                mid.add_track(name="Drums")]

            # Set synth instruments
            self.tracks[CHANNEL_SYNTH1].append(mido.Message('program_change', program=PROGRAM_SYNTH1))
            self.tracks[CHANNEL_SYNTH2].append(mido.Message('program_change', program=PROGRAM_SYNTH2))

            with mido.open_input(self.input) as port:
                print("Push 'Play' to start capture.")
                for msg in port:
                    if not self.process_message(msg):
                        break

            self.capturing = False
            self.write_tempo_map()
            mid.save(self.output)

        print("All done!")

def main():
    output_name = ''
    input_name = ''
    device_names = mido.get_input_names()
    for device_name in device_names:
        # FIXME: Heuristic to get our USB stick device
        if '-' in device_name and 'Through' not in device_name:
            output_name = device_name
            break
    else:
        print "No appropriate MIDI device. MIDI device names: ", device_names
        return

    print "Connected devices: ", device_names
    print "Opening device: ", output_name

    # or, with mido.open_ioport(output_name) as iop:
    with mido.open_output(output_name) as output:
        with mido.open_input(output_name, callback=print_message) as inp:
            #msg = mido.Message('sysex', data=[10]) Set type to digital output
            #msg = mido.Message('sysex', data=[101]) # send watchdog timer reset
            #msg = mido.Message('sysex', data=[99]) # Request device type
            msg = mido.Message('sysex', data=[77]) # Request device name
            #msg = mido.Message('sysex', data=[54,1,2,3,4]) # Set device name to '0x010203'
            #msg = mido.Message('note_on')
            print "sending msg: ", msg
            output.send(msg);
            print "waiting for response message"
            time.sleep(1) # Pause while we get MIDO callback print-outs
    print "script done"

def start_midi_stream(file_name, display):
    last_note = int(round(time.time() * 1000))
    mido.get_output_names()
    port_name = mido.get_input_names()[0]
    print('Starting on port: ' + port_name)
    with MidiFile() as mid:
        track = MidiTrack()
        try:
            print("Waiting For Keyboard Input ... ")
            with mido.open_input(port_name) as inport:
                for msg in inport:
                    now = int(round(time.time() * 1000))
                    msg.time = now - last_note
                    last_note = now
                    if hasattr(msg, 'velocity') and msg.velocity == 0:
                        msg = Message('note_off', note=msg.note, velocity=msg.velocity, time=msg.time)
                    track.append(msg)
                    if display:
                        print(msg)
        except KeyboardInterrupt:
            if file_name:
                print("\nStopping and saving file ... ")
            else:
                print("\nStopping ...")
        finally:
            if file_name:
                print(file_name)
                mid.tracks.append(track)
                mid.save(file_name)
                print("File Saved!")
                print("File Location: " + file_name)
            else:
                print("Done!")

 def __init__(self):
     self.log = logger()
     if 'Teensy MIDI' not in mido.get_input_names():
         self.log.error('Error connecting to Teensy foot controller.')
         sys.exit(1)
     self.input = mido.open_input(MidiController.DEVICE)
     self.log.info('Device Registered.')

 def open_port(self, portName):
     if not self.port or self.port.name != portName:
         if self.port:
             self.port.close()
         print(portName)
         if portName in mido.get_input_names():
             self.port = mido.open_input(portName, callback=self.dispatch_midi)

  def __init__(self, input_midi_port, output_midi_port, texture_type,
               passthrough=True):
    self._texture_type = texture_type
    self._passthrough = passthrough
    # When `passthrough` is True, this is the set of open MIDI note pitches.
    self._open_notes = set()
    # This lock is used by the serialized decorator.
    self._lock = threading.RLock()
    # A dictionary mapping a string-formatted mido.Messages to a condition
    # variable that will be notified when a matching messsage is received,
    # ignoring the time field.
    self._signals = {}
    # A dictionary mapping integer control numbers to most recently-received
    # integer value.
    self._control_values = {}
    # Threads actively being used to capture incoming messages.
    self._captors = []
    # Potentially active player threads.
    self._players = []
    self._metronome = None

    # Open MIDI ports.
    self._inport = (
        input_midi_port if isinstance(input_midi_port, mido.ports.BaseInput)
        else mido.open_input(
            input_midi_port,
            virtual=input_midi_port not in get_available_input_ports()))
    self._outport = (
        output_midi_port if isinstance(output_midi_port, mido.ports.BaseOutput)
        else mido.open_output(
            output_midi_port,
            virtual=output_midi_port not in get_available_output_ports()))

    # Start processing incoming messages.
    self._inport.callback = self._timestamp_and_handle_message

 def start(self):
     if self.midi_inport:
         with mido.open_input(self.midi_inport) as input:
             for message in input:
                 if message.type == 'control_change':
                     if message.channel == self.channel:
                         if message.control == self.bcontrolnum:
                             self.beat.set_control_beat(message.value)
                         elif message.control == self.tcontrolnum:
                             self.bpm.set_control_bpm(message.value)
                         elif message.control == self.rcontrolnum:
                             self.rms.set_control_rms(message.value)
                         elif message.control == self.pcontrolnum:
                             self.pitch.set_control_pitch(message.value)
                 elif message.type == 'sysex':
                     prefix = list(message.data[0:len(self.sysex_prefix)])
                     command = message.data[len(self.sysex_prefix)]
                     data = list(message.data[len(self.sysex_prefix) + 1:])
                     if cmp(prefix, self.sysex_prefix) == 0:
                         if command == self.bsysexnum:
                             self.beat.set_sysex_beat(data)
                         elif command == self.tsysexnum:
                             self.bpm.set_sysex_bpm_two_bytes(data)
                         elif command == self.rsysexnum:
                             self.rms.set_sysex_rms(data)
                         elif command == self.fsysexnum:
                             self.frequencies.set_sysex_frequencies(data)
                         elif command == self.psysexnum:
                             self.pitch.set_sysex_pitch(data)
                 elif message.channel == self.channel:
                     if message.type == 'note_on':
                         self.pitch.set_note_pitch(message.note)
                     elif message.type == 'note_off':
                         self.pitch.set_last_note_pitch(message.note)

    def wait(self):
        with mido.open_input(self.device_name) as incoming:
            for msg in incoming:
                if msg.type == 'note_on' and msg.note in self.notes:
                    return (msg.note, msg.velocity)

        return False