Package midi :: Package sequencer_portmidi :: Class Sequencer

Class Sequencer

object --+
         |
        Sequencer

Midi sequencer that sends midi events to system midi devices using PyGame's interface to Portmidi.

Instance Methods

[hide private]

__init__(self, output_device=None, latency=None)
x.__init__(...) initializes x; see help(type(x)) for signature

source code

write(self, events, time_offset=0)
Plays a list of events through the output device.

source code

queue_event(self, midi_event, time)

source code

play_stream(self, stream)
Sends the whole of an EventStream to the sequencer output.

source code

stop(self)

source code

play(self, latency=0)

source code

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Static Methods

[hide private]

get_devices(inputs=True, outputs=True)
Queries available devices.

source code

Properties

[hide private]

playing

Inherited from object: __class__

Method Details

[hide private]

init(self, output_device=None, latency=None)
(Constructor)

source code

x.__init__(...) initializes x; see help(type(x)) for signature

Parameters:

output_device (int) - Portmidi device number to use for output. Will use the reported default if not given.
latency (int) - latency value to use PortMidi output with. 0 is not permitted, as it prevents us doing timestamped events.

Overrides: object.__init__

get_devices(inputs=True, outputs=True)
Static Method

source code

Queries available devices. Returns list of pairs (index,device_info). index is the device number by which it can be accessed. device_info is a tuple in the same format as pygame.midi.get_device_info(): (interf, name, input, output, opened)

write(self, events, time_offset=0)

source code

Plays a list of events through the output device. Delta times between the events are preserved, but the first event is played immediately, or after the given offset (in miliseconds)

Property Details

[hide private]

playing

Get Method:: unreachable.playing(self)

Class Sequencer

__init__(self, output_device=None, latency=None) (Constructor)

get_devices(inputs=True, outputs=True) Static Method

write(self, events, time_offset=0)

playing

init(self, output_device=None, latency=None)
(Constructor)

get_devices(inputs=True, outputs=True)
Static Method