--- /dev/null
+import sounddevice as sd
+import audioop
+import time
+
+frame_rate = 44100
+channels = 2
+sample_width = 2
+
+class Mixer:
+ def __init__(self):
+ self.stream = sd.RawOutputStream(samplerate=frame_rate,
+ channels=channels,
+ dtype='int' + str(8*sample_width), # FIXME: ?
+ latency="high",
+ blocksize=5000,
+ callback=self.play_callback,
+ )
+ self.open_files = []
+
+ def add_file(self, music_file):
+ if music_file not in self.open_files:
+ self.open_files.append(music_file)
+ self.start()
+
+ def remove_file(self, music_file):
+ self.open_files.remove(music_file)
+ if len(self.open_files) == 0:
+ self.stop()
+
+ def stop(self):
+ self.stream.stop()
+
+ def start(self):
+ self.stream.start()
+
+ def play_callback(self, out_data, frame_count, time_info, status_flags):
+ out_data_length = len(out_data)
+ empty_data = b"\0" * out_data_length
+ data = b"\0" * out_data_length
+
+ for open_file in self.open_files:
+ file_data = open_file.play_callback(out_data_length, frame_count)
+
+ if data == empty_data:
+ data = file_data
+ elif file_data != empty_data:
+ data = audioop.add(data, file_data, sample_width)
+
+ out_data[:] = data
+
import time
from transitions.extensions import HierarchicalMachine as Machine
-import sounddevice as sd
import os.path
from .lock import Lock
{ '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'}
+ { 'trigger': 'stopped', 'source': 'loaded_stopping', 'dest': 'loaded_stopped', 'after': 'trigger_stopped_events'}
]
Machine.__init__(self, states=states, transitions=transitions, initial='initial')
self.volume = 100
self.mapping = mapping
self.filename = filename
- self.stream = None
self.name = name or filename
self.audio_segment = None
self.audio_segment_frame_width = 0
try:
print("Loading « {} »".format(self.name))
db_gain = gain(self.volume_factor * 100)
- self.audio_segment = pydub.AudioSegment.from_file(self.filename).set_frame_rate(44100).apply_gain(db_gain)
+ self.audio_segment = pydub.AudioSegment.from_file(self.filename).set_frame_rate(44100).set_channels(2).set_sample_width(2).apply_gain(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:
self.a_s_with_effect = None
- self.before_loaded_playing()
self.start_playing()
- def before_loaded_playing(self):
- with self.music_lock:
- segment = self.current_audio_segment
-
- self.stream = sd.RawOutputStream(samplerate=segment.frame_rate,
- channels=segment.channels,
- dtype='int' + str(8*segment.sample_width), # FIXME: ?
- latency=1.,
- callback=self.play_callback,
- finished_callback=self.finished_callback
- )
-
def on_enter_loaded_playing(self):
- self.stream.start()
-
- def on_enter_loaded_paused(self):
- self.stream.stop()
+ self.mapping.mixer.add_file(self)
def finished_callback(self):
if self.is_loaded_playing():
if self.is_loaded_stopping():
self.stopped()
- def on_enter_loaded_stopped(self):
+ def trigger_stopped_events(self):
+ self.mapping.mixer.remove_file(self)
self.wait_event.set()
- def play_callback(self, out_data, frame_count, time_info, status_flags):
+ def play_callback(self, out_data_length, frame_count):
+ if self.is_loaded_paused():
+ return b'\0' * out_data_length
+
with self.music_lock:
[data, nb_frames] = self.get_next_sample(frame_count)
if nb_frames < frame_count:
data += new_data
nb_frames += new_nb_frames
elif nb_frames == 0:
- raise sd.CallbackStop
+ threading.Thread(name = "MSFinishedCallback", target=self.finished_callback).start()
- out_data[:] = data.ljust(len(out_data), b'\0')
+ return data.ljust(out_data_length, b'\0')
def get_next_sample(self, frame_count):
fw = self.audio_segment_frame_width
# FIXME: stop fade_out puis seek -5 -> on abandonne le fade ? (cf
# commentaire dans fonction seek
+ new_audio_segment = self.current_audio_segment[:ms + ms_fo].fade_out(ms_fo)
with self.music_lock:
- self.current_audio_segment = self.current_audio_segment[:ms + ms_fo].fade_out(ms_fo)
- self.stop_playing()
+ self.current_audio_segment = new_audio_segment
+ self.stop_playing()
if wait:
self.wait_end()
else:
exe = EXE(pyz, a.scripts, a.binaries, a.zipfiles, a.datas, name='music_sampler')
# Directory
-exe = EXE(pyz, a.scripts, exclude_binaries=True, name='music_sampler_dir', debug=False, strip=False, upx=True, console=True )
-coll = COLLECT(exe, a.binaries, a.zipfiles, a.datas, strip=False, upx=True, name='music_sampler_dir')
+# exe = EXE(pyz, a.scripts, exclude_binaries=True, name='music_sampler_dir', debug=False, strip=False, upx=True, console=True )
+# coll = COLLECT(exe, a.binaries, a.zipfiles, a.datas, strip=False, upx=True, name='music_sampler_dir')