file_lock = Lock("file")
class MusicFile(Machine):
- def __init__(self, filename, mapping, name = None, gain = 1):
+ def __init__(self, filename, mapping, name=None, gain=1):
states = [
'initial',
'loading',
'failed',
- { 'name': 'loaded', 'children': ['stopped', 'playing', 'paused', 'stopping'] }
+ {
+ 'name': 'loaded',
+ 'children': ['stopped', 'playing', 'paused', 'stopping']
+ }
]
transitions = [
- { 'trigger': 'load', 'source': 'initial', 'dest': 'loading'},
- { 'trigger': 'fail', 'source': 'loading', 'dest': 'failed'},
- { 'trigger': 'success', 'source': 'loading', 'dest': 'loaded_stopped'},
- { 'trigger': 'start_playing', 'source': 'loaded_stopped', 'dest': 'loaded_playing'},
- { 'trigger': 'pause', 'source': 'loaded_playing', 'dest': 'loaded_paused'},
- { 'trigger': 'unpause', 'source': 'loaded_paused', 'dest': 'loaded_playing'},
- { 'trigger': 'stop_playing', 'source': ['loaded_playing','loaded_paused'], 'dest': 'loaded_stopping'},
- { 'trigger': 'stopped', 'source': 'loaded_stopping', 'dest': 'loaded_stopped', 'after': 'trigger_stopped_events'}
+ {
+ 'trigger': 'load',
+ 'source': 'initial',
+ 'dest': 'loading'
+ },
+ {
+ 'trigger': 'fail',
+ 'source': 'loading',
+ 'dest': 'failed'
+ },
+ {
+ 'trigger': 'success',
+ 'source': 'loading',
+ 'dest': 'loaded_stopped'
+ },
+ {
+ 'trigger': 'start_playing',
+ 'source': 'loaded_stopped',
+ 'dest': 'loaded_playing'
+ },
+ {
+ 'trigger': 'pause',
+ 'source': 'loaded_playing',
+ 'dest': 'loaded_paused'
+ },
+ {
+ 'trigger': 'unpause',
+ 'source': 'loaded_paused',
+ 'dest': 'loaded_playing'
+ },
+ {
+ 'trigger': 'stop_playing',
+ 'source': ['loaded_playing','loaded_paused'],
+ 'dest': 'loaded_stopping'
+ },
+ {
+ 'trigger': 'stopped',
+ 'source': 'loaded_stopping',
+ 'dest': 'loaded_stopped',
+ 'after': 'trigger_stopped_events'
+ }
]
- Machine.__init__(self, states=states, transitions=transitions, initial='initial')
+ Machine.__init__(self, states=states,
+ transitions=transitions, initial='initial')
self.volume = 100
self.mapping = mapping
self.wait_event = threading.Event()
self.db_gain = 0
- threading.Thread(name = "MSMusicLoad", target = self.load).start()
+ threading.Thread(name="MSMusicLoad", target=self.load).start()
def on_enter_loading(self):
with file_lock:
debug_print("Loading « {} »".format(self.name))
self.mixer = self.mapping.mixer or Mixer()
initial_db_gain = gain(self.initial_volume_factor * 100)
- self.audio_segment = pydub.AudioSegment.from_file(self.filename).set_frame_rate(Config.frame_rate).set_channels(Config.channels).set_sample_width(Config.sample_width).apply_gain(initial_db_gain)
+ self.audio_segment = pydub.AudioSegment \
+ .from_file(self.filename) \
+ .set_frame_rate(Config.frame_rate) \
+ .set_channels(Config.channels) \
+ .set_sample_width(Config.sample_width) \
+ .apply_gain(initial_db_gain)
self.audio_segment_frame_width = self.audio_segment.frame_width
self.sound_duration = self.audio_segment.duration_seconds
except Exception as e:
else:
return 0
- def play(self, fade_in = 0, volume = 100, loop = 0, start_at = 0):
+ def play(self, fade_in=0, volume=100, loop=0, start_at=0):
self.db_gain = gain(volume) + self.mapping.master_gain
self.volume = volume
self.loop = loop
self.current_frame = int(start_at * self.audio_segment.frame_rate)
if ms_fi > 0:
# FIXME: apply it to repeated when looping?
- self.a_s_with_effect = self.current_audio_segment[ms:ms+ms_fi].fade_in(ms_fi)
+ self.a_s_with_effect = self \
+ .current_audio_segment[ms : ms+ms_fi] \
+ .fade_in(ms_fi)
self.current_frame_with_effect = 0
else:
self.a_s_with_effect = None
if self.is_loaded_playing() and self.loop != 0:
self.loop -= 1
self.current_frame = 0
- [new_data, new_nb_frames] = self.get_next_sample(frame_count - nb_frames)
+ [new_data, new_nb_frames] = self.get_next_sample(
+ frame_count - nb_frames)
data += new_data
nb_frames += new_nb_frames
elif nb_frames == 0:
# FIXME: too slow
- threading.Thread(name = "MSFinishedCallback", target=self.finished_callback).start()
+ threading.Thread(
+ name="MSFinishedCallback",
+ target=self.finished_callback).start()
return data.ljust(out_data_length, b'\0')
max_val = int(segment.frame_count())
start_i = max(self.current_frame_with_effect, 0)
- end_i = min(self.current_frame_with_effect + frame_count, max_val)
+ end_i = min(self.current_frame_with_effect + frame_count, max_val)
- data += segment._data[(start_i * fw):(end_i * fw)]
+ data += segment._data[start_i*fw : end_i*fw]
- frame_count = max(0, self.current_frame_with_effect + frame_count - max_val)
+ frame_count = max(
+ 0,
+ self.current_frame_with_effect + frame_count - max_val)
self.current_frame_with_effect += end_i - start_i
self.current_frame += end_i - start_i
start_i = max(self.current_frame, 0)
end_i = min(self.current_frame + frame_count, max_val)
- data += segment._data[(start_i * fw):(end_i * fw)]
+ data += segment._data[start_i*fw : end_i*fw]
nb_frames += end_i - start_i
self.current_frame += end_i - start_i
return [data, nb_frames]
- def seek(self, value = 0, delta = False):
+ def seek(self, value=0, delta=False):
# We don't want to do that while stopping
if not (self.is_loaded_playing() or self.is_loaded_paused()):
return
with self.music_lock:
self.a_s_with_effect = None
- self.current_frame = max(0, int(delta) * self.current_frame + int(value * self.audio_segment.frame_rate))
+ self.current_frame = max(
+ 0,
+ int(delta) * self.current_frame
+ + int(value * self.audio_segment.frame_rate))
# FIXME: si on fait un seek + delta, adapter le "loop"
- def stop(self, fade_out = 0, wait = False):
+ def stop(self, fade_out=0, wait=False):
if self.is_loaded_playing():
ms = int(self.sound_position * 1000)
ms_fo = max(1, int(fade_out * 1000))
- new_audio_segment = self.current_audio_segment[:ms + ms_fo].fade_out(ms_fo)
+ new_audio_segment = self.current_audio_segment[: ms+ms_fo] \
+ .fade_out(ms_fo)
with self.music_lock:
self.current_audio_segment = new_audio_segment
self.stop_playing()
self.db_gain += db_gain
self.volume_factor = 10 ** (self.db_gain / 20)
- def set_volume(self, value, delta = False):
- [db_gain, self.volume] = gain(value + int(delta) * self.volume, self.volume)
+ def set_volume(self, value, delta=False):
+ [db_gain, self.volume] = gain(
+ value + int(delta) * self.volume,
+ self.volume)
self.set_gain(db_gain)
projects / perso / Immae / Projets / Python / MusicSampler.git / blobdiff