66 lines
1.9 KiB
Python

import ctypes
from sound_lib.external import pybass, pybass_fx
from sound_lib.stream import BaseStream
from sound_lib.channel import Channel
from sound_lib.main import bass_call, bass_call_0
class Tempo(BaseStream):
def __init__(self, channel, flags=0, loop=False, software=False, three_d=False, sample_fx=False, autofree=False, decode=False, free_source=False):
flags = flags | self.flags_for(loop=False, software=False, three_d=False, sample_fx=False, autofree=False, decode=False, free_source=False)
self.channel = channel
if isinstance(channel, Channel):
channel = channel.handle
handle = bass_call(pybass_fx.BASS_FX_TempoCreate, channel, flags)
super(Tempo, self).__init__(handle)
self.add_attributes_to_mapping(
tempo=pybass_fx.BASS_ATTRIB_TEMPO,
tempo_pitch=pybass_fx.BASS_ATTRIB_TEMPO_PITCH,
tempo_freq=pybass_fx.BASS_ATTRIB_TEMPO_FREQ,
)
@property
def tempo(self):
"""The tempo of a channel."""
return self.get_attribute(pybass_fx.BASS_ATTRIB_TEMPO)
@tempo.setter
def tempo(self, val):
self.set_attribute('tempo', val)
@property
def tempo_pitch(self):
return self.get_attribute('tempo_pitch')
@tempo_pitch.setter
def tempo_pitch(self, val):
self.set_attribute('tempo_pitch', val)
@property
def tempo_freq(self):
return self.get_attribute('tempo_freq')
@tempo_freq.setter
def tempo_freq(self, val):
self.set_attribute('tempo_freq', val)
def setup_flag_mapping(self):
super(Tempo, self).setup_flag_mapping()
self.flag_mapping.update({
'free_source': pybass_fx.BASS_FX_FREESOURCE,
})
def get_source(self):
source = pybass_fx.BASS_FX_TempoGetSource(self.handle)
if source == self.channel.handle:
source = self.channel
return source
source = property(fget=get_source)
def get_rate_ratio(self):
return bass_call(pybass_fx.BASS_FX_TempoGetRateRatio, self.handle)
rate_ratio = property(fget=get_rate_ratio)