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resolve pylint diagnostics

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This commit is contained in:
Jeff Epler 2024-10-04 08:01:14 -05:00
parent 3c828cb669
commit cd231d5aed
1 changed files with 30 additions and 37 deletions
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67
circuitpython-audio-fx/polyphonic/code.py
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@ -9,6 +9,7 @@ import random
import board import board
import keypad import keypad
import audiobusio import audiobusio
import audiocore
import audiomp3 import audiomp3
import audiomixer import audiomixer
@ -38,11 +39,6 @@ audiodev = audiobusio.I2SOut(
# without "opening" a "file"! # without "opening" a "file"!
EMPTY_MP3_BYTES = b"\xff\xe3" EMPTY_MP3_BYTES = b"\xff\xe3"
# THis is actually a valid but very short mp3 file, use it in case the core
# changes and becomes more picky
# EMPTY_MP3_BYTES = b'\xff\xe3\x18\xc4\x00\x00\x00\x03H\x00\x00\x00\x00CIRCUITPYUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\xff\xe3\x18\xc4;\x00\x00\x03H\x00\x00\x00\x00UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU\xff\xe3\x18\xc4v\x00\x00\x03H\x00\x00\x00\x00UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU'
def exists(p): def exists(p):
try: try:
os.stat(p) os.stat(p)
@ -60,10 +56,10 @@ def random_choice(seq):
# stop any audio (it's already stopped) but it DOES mark the voice & decoder as # stop any audio (it's already stopped) but it DOES mark the voice & decoder as
# available. Otherwise, we might needlessly stop some other sample. # available. Otherwise, we might needlessly stop some other sample.
def free_stopped_channels(): def free_stopped_channels():
for trigger in triggers: for i in triggers:
if trigger._voice and not trigger.playing: if i.voice and not i.playing:
print("fst") print("fst")
trigger.force_off() i.force_off()
# iterating on reversed triggers gives priority to **lower** numbered triggers # iterating on reversed triggers gives priority to **lower** numbered triggers
@ -71,8 +67,8 @@ def ensure_available_decoder():
if available_decoders: if available_decoders:
return available_decoders.popleft() return available_decoders.popleft()
for trigger in reversed_triggers: for i in reversed_triggers:
trigger.force_off() i.force_off()
if available_decoders: if available_decoders:
break break
@ -83,8 +79,8 @@ def ensure_available_voice():
if available_voices: if available_voices:
return available_voices.popleft() return available_voices.popleft()
for trigger in reversed_triggers: for i in reversed_triggers:
trigger.force_off() i.force_off()
if available_voices: if available_voices:
break break
@ -94,8 +90,8 @@ def ensure_available_voice():
class TriggerBase: class TriggerBase:
def __init__(self, prefix): def __init__(self, prefix):
self._decoder = None self._decoder = None
self._voice = None self.voice = None
self._filenames = list(self._gather_filenames(prefix)) self.filenames = list(self._gather_filenames(prefix))
def _gather_filenames(self, prefix): def _gather_filenames(self, prefix):
for stem in self.stems: for stem in self.stems:
@ -108,7 +104,7 @@ class TriggerBase:
yield name_wav yield name_wav
continue continue
def _get_sample(self, path): def get_sample(self, path):
if path.endswith(".mp3"): if path.endswith(".mp3"):
self._decoder = ensure_available_decoder() self._decoder = ensure_available_decoder()
self._decoder.open(path) self._decoder.open(path)
@ -119,16 +115,16 @@ class TriggerBase:
def play(self, path, loop=False): def play(self, path, loop=False):
self.force_off() self.force_off()
free_stopped_channels() free_stopped_channels()
sample = self._get_sample(path) sample = self.get_sample(path)
self._voice = ensure_available_voice() self.voice = ensure_available_voice()
self._voice.play(sample, loop=loop) self.voice.play(sample, loop=loop)
def force_off(self): def force_off(self):
print("force off", self) print("force off", self)
voice = self._voice voice = self.voice
if voice is not None: if voice is not None:
print(f"return voice {id(voice)}") print(f"return voice {id(voice)}")
self._voice = None self.voice = None
voice.stop() voice.stop()
available_voices.append(voice) available_voices.append(voice)
decoder = self._decoder decoder = self._decoder
@ -141,7 +137,7 @@ class TriggerBase:
@property @property
def playing(self): def playing(self):
return False if self._voice is None else self._voice.playing return False if self.voice is None else self.voice.playing
@classmethod @classmethod
def matches(cls, prefix): def matches(cls, prefix):
@ -151,7 +147,7 @@ class TriggerBase:
return exists(name_wav) or exists(name_mp3) return exists(name_wav) or exists(name_mp3)
def __repr__(self): def __repr__(self):
return f"<{self.__class__.__name__} {self._filenames}{' playing' if self.playing else ''}>" return f"<{self.__class__.__name__} {self.filenames}{' playing' if self.playing else ''}>"
class NopTrigger(TriggerBase): class NopTrigger(TriggerBase):
@ -172,7 +168,7 @@ class BasicTrigger(TriggerBase):
stems = [""] stems = [""]
def on_press(self): def on_press(self):
self.play(self._filenames[0]) self.play(self.filenames[0])
def on_release(self): def on_release(self):
pass pass
@ -184,7 +180,7 @@ class HoldLoopingTrigger(TriggerBase):
stems = ["HOLDL"] stems = ["HOLDL"]
def on_press(self): def on_press(self):
self.play(self._filenames[0], loop=True) self.play(self.filenames[0], loop=True)
def on_release(self): def on_release(self):
self.force_off() self.force_off()
@ -199,7 +195,7 @@ class LatchingLoopTrigger(TriggerBase):
if self.playing: if self.playing:
self.force_off() self.force_off()
else: else:
self.play(self._filenames[0], loop=True) self.play(self.filenames[0], loop=True)
def on_release(self): def on_release(self):
pass pass
@ -213,8 +209,8 @@ class PlayNextTrigger(TriggerBase):
self._phase = 0 self._phase = 0
def on_press(self): def on_press(self):
self.play(self._filenames[self._phase]) self.play(self.filenames[self._phase])
self._phase = (self._phase + 1) % len(self._filenames) self._phase = (self._phase + 1) % len(self.filenames)
def on_release(self): def on_release(self):
pass pass
@ -223,11 +219,8 @@ class PlayNextTrigger(TriggerBase):
class PlayRandomTrigger(TriggerBase): class PlayRandomTrigger(TriggerBase):
stems = [f"RAND{i}" for i in range(10)] stems = [f"RAND{i}" for i in range(10)]
def __init__(self, prefix):
super().__init__(prefix)
def on_press(self): def on_press(self):
self.play(random_choice(self._filenames)) self.play(random_choice(self.filenames))
def on_release(self): def on_release(self):
pass pass
@ -275,16 +268,16 @@ def playback_specs(sample):
) )
def check_match_make_mixer(audiodev): def check_match_make_mixer(dev):
all_filenames = [] all_filenames = []
for trigger in triggers: for i in triggers:
all_filenames.extend(trigger._filenames) all_filenames.extend(i.filenames)
if not all_filenames: if not all_filenames:
raise RuntimeError("*** NO AUDIO FILES FOUND ***") raise RuntimeError("*** NO AUDIO FILES FOUND ***")
if max_simultaneous_voices == 1: if max_simultaneous_voices == 1:
return [audiodev] return [dev]
first_trigger = triggers[0] first_trigger = triggers[0]
@ -292,7 +285,7 @@ def check_match_make_mixer(audiodev):
specs = None specs = None
for filename in all_filenames: for filename in all_filenames:
sample = first_trigger._get_sample(filename) sample = first_trigger.get_sample(filename)
new_specs = playback_specs(sample) new_specs = playback_specs(sample)
if specs is None: if specs is None:
specs = new_specs specs = new_specs
@ -312,7 +305,7 @@ def check_match_make_mixer(audiodev):
samples_signed=samples_signed, samples_signed=samples_signed,
**specs, **specs,
) )
audiodev.play(mixer) dev.play(mixer)
return list(mixer.voice) return list(mixer.voice)