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Commit | Line | Data |
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be27763f IB |
1 | import threading |
2 | import pydub | |
98ff4305 | 3 | import time |
60979de4 | 4 | from transitions.extensions import HierarchicalMachine as Machine |
be27763f | 5 | |
29597680 IB |
6 | import os.path |
7 | ||
ccda4cb9 IB |
8 | import audioop |
9 | ||
29597680 | 10 | from .lock import Lock |
a24c34bc | 11 | from . import Config, gain, debug_print, error_print |
af27d782 | 12 | from .mixer import Mixer |
1b4b78f5 | 13 | |
29597680 IB |
14 | file_lock = Lock("file") |
15 | ||
60979de4 | 16 | class MusicFile(Machine): |
1b4b78f5 | 17 | def __init__(self, filename, mapping, name = None, gain = 1): |
60979de4 IB |
18 | states = [ |
19 | 'initial', | |
20 | 'loading', | |
21 | 'failed', | |
29597680 | 22 | { 'name': 'loaded', 'children': ['stopped', 'playing', 'paused', 'stopping'] } |
60979de4 IB |
23 | ] |
24 | transitions = [ | |
25 | { 'trigger': 'load', 'source': 'initial', 'dest': 'loading'}, | |
26 | { 'trigger': 'fail', 'source': 'loading', 'dest': 'failed'}, | |
27 | { 'trigger': 'success', 'source': 'loading', 'dest': 'loaded_stopped'}, | |
29597680 IB |
28 | { 'trigger': 'start_playing', 'source': 'loaded_stopped', 'dest': 'loaded_playing'}, |
29 | { 'trigger': 'pause', 'source': 'loaded_playing', 'dest': 'loaded_paused'}, | |
30 | { 'trigger': 'unpause', 'source': 'loaded_paused', 'dest': 'loaded_playing'}, | |
31 | { 'trigger': 'stop_playing', 'source': ['loaded_playing','loaded_paused'], 'dest': 'loaded_stopping'}, | |
22514f3a | 32 | { 'trigger': 'stopped', 'source': 'loaded_stopping', 'dest': 'loaded_stopped', 'after': 'trigger_stopped_events'} |
60979de4 IB |
33 | ] |
34 | ||
35 | Machine.__init__(self, states=states, transitions=transitions, initial='initial') | |
36 | ||
1b4b78f5 IB |
37 | self.volume = 100 |
38 | self.mapping = mapping | |
be27763f | 39 | self.filename = filename |
9de92b6d | 40 | self.name = name or filename |
29597680 | 41 | self.audio_segment = None |
ccc8b4f2 | 42 | self.audio_segment_frame_width = 0 |
ccda4cb9 | 43 | self.initial_volume_factor = gain |
29597680 | 44 | self.music_lock = Lock("music__" + filename) |
0deb82a5 | 45 | self.wait_event = threading.Event() |
ccda4cb9 | 46 | self.db_gain = 0 |
be27763f | 47 | |
29597680 IB |
48 | threading.Thread(name = "MSMusicLoad", target = self.load).start() |
49 | ||
50 | def on_enter_loading(self): | |
51 | with file_lock: | |
52 | try: | |
a24c34bc IB |
53 | debug_print("Loading « {} »".format(self.name)) |
54 | self.mixer = self.mapping.mixer or Mixer() | |
ccda4cb9 IB |
55 | initial_db_gain = gain(self.initial_volume_factor * 100) |
56 | 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) | |
ccc8b4f2 | 57 | self.audio_segment_frame_width = self.audio_segment.frame_width |
29597680 IB |
58 | self.sound_duration = self.audio_segment.duration_seconds |
59 | except Exception as e: | |
a24c34bc | 60 | error_print("failed to load « {} »: {}".format(self.name, e)) |
29597680 IB |
61 | self.loading_error = e |
62 | self.fail() | |
63 | else: | |
64 | self.success() | |
a24c34bc | 65 | debug_print("Loaded « {} »".format(self.name)) |
60979de4 IB |
66 | |
67 | def check_is_loaded(self): | |
68 | return self.state.startswith('loaded_') | |
be27763f | 69 | |
29597680 IB |
70 | def is_not_stopped(self): |
71 | return self.check_is_loaded() and not self.is_loaded_stopped() | |
0e5d59f7 | 72 | |
9de92b6d | 73 | def is_paused(self): |
29597680 | 74 | return self.is_loaded_paused() |
9de92b6d | 75 | |
98ff4305 IB |
76 | @property |
77 | def sound_position(self): | |
29597680 IB |
78 | if self.is_not_stopped(): |
79 | return self.current_frame / self.current_audio_segment.frame_rate | |
98ff4305 IB |
80 | else: |
81 | return 0 | |
82 | ||
6f4944c1 | 83 | def play(self, fade_in = 0, volume = 100, loop = 0, start_at = 0): |
ccda4cb9 | 84 | self.db_gain = gain(volume) + self.mapping.master_gain |
1b4b78f5 | 85 | self.volume = volume |
6f4944c1 | 86 | self.loop = loop |
1b4b78f5 | 87 | |
29597680 | 88 | ms = int(start_at * 1000) |
ccc8b4f2 | 89 | ms_fi = int(fade_in * 1000) |
29597680 | 90 | with self.music_lock: |
ccda4cb9 | 91 | self.current_audio_segment = self.audio_segment |
ccc8b4f2 IB |
92 | self.current_frame = int(start_at * self.audio_segment.frame_rate) |
93 | if ms_fi > 0: | |
94 | # FIXME: apply it to repeated when looping? | |
95 | self.a_s_with_effect = self.current_audio_segment[ms:ms+ms_fi].fade_in(ms_fi) | |
96 | self.current_frame_with_effect = 0 | |
97 | else: | |
98 | self.a_s_with_effect = None | |
99 | ||
29597680 IB |
100 | self.start_playing() |
101 | ||
29597680 | 102 | def on_enter_loaded_playing(self): |
af27d782 | 103 | self.mixer.add_file(self) |
29597680 IB |
104 | |
105 | def finished_callback(self): | |
106 | if self.is_loaded_playing(): | |
107 | self.stop_playing() | |
108 | if self.is_loaded_stopping(): | |
109 | self.stopped() | |
110 | ||
22514f3a | 111 | def trigger_stopped_events(self): |
af27d782 | 112 | self.mixer.remove_file(self) |
0deb82a5 IB |
113 | self.wait_event.set() |
114 | ||
22514f3a IB |
115 | def play_callback(self, out_data_length, frame_count): |
116 | if self.is_loaded_paused(): | |
117 | return b'\0' * out_data_length | |
118 | ||
29597680 | 119 | with self.music_lock: |
ccc8b4f2 IB |
120 | [data, nb_frames] = self.get_next_sample(frame_count) |
121 | if nb_frames < frame_count: | |
6f4944c1 IB |
122 | if self.is_loaded_playing() and self.loop != 0: |
123 | self.loop -= 1 | |
ccc8b4f2 IB |
124 | self.current_frame = 0 |
125 | [new_data, new_nb_frames] = self.get_next_sample(frame_count - nb_frames) | |
126 | data += new_data | |
127 | nb_frames += new_nb_frames | |
128 | elif nb_frames == 0: | |
75d6cdba | 129 | # FIXME: too slow |
22514f3a | 130 | threading.Thread(name = "MSFinishedCallback", target=self.finished_callback).start() |
29597680 | 131 | |
22514f3a | 132 | return data.ljust(out_data_length, b'\0') |
ccc8b4f2 IB |
133 | |
134 | def get_next_sample(self, frame_count): | |
135 | fw = self.audio_segment_frame_width | |
136 | ||
137 | data = b"" | |
138 | nb_frames = 0 | |
139 | if self.a_s_with_effect is not None: | |
140 | segment = self.a_s_with_effect | |
141 | max_val = int(segment.frame_count()) | |
142 | ||
143 | start_i = max(self.current_frame_with_effect, 0) | |
144 | end_i = min(self.current_frame_with_effect + frame_count, max_val) | |
145 | ||
146 | data += segment._data[(start_i * fw):(end_i * fw)] | |
147 | ||
148 | frame_count = max(0, self.current_frame_with_effect + frame_count - max_val) | |
149 | ||
150 | self.current_frame_with_effect += end_i - start_i | |
151 | self.current_frame += end_i - start_i | |
152 | nb_frames += end_i - start_i | |
153 | ||
154 | if frame_count > 0: | |
155 | self.a_s_with_effect = None | |
156 | ||
157 | segment = self.current_audio_segment | |
158 | max_val = int(segment.frame_count()) | |
159 | ||
160 | start_i = max(self.current_frame, 0) | |
161 | end_i = min(self.current_frame + frame_count, max_val) | |
162 | data += segment._data[(start_i * fw):(end_i * fw)] | |
163 | nb_frames += end_i - start_i | |
164 | self.current_frame += end_i - start_i | |
165 | ||
ccda4cb9 IB |
166 | data = audioop.mul(data, Config.sample_width, self.volume_factor) |
167 | ||
ccc8b4f2 | 168 | return [data, nb_frames] |
be27763f | 169 | |
52d58baf IB |
170 | def seek(self, value = 0, delta = False): |
171 | # We don't want to do that while stopping | |
172 | if not (self.is_loaded_playing() or self.is_loaded_paused()): | |
173 | return | |
174 | with self.music_lock: | |
ccc8b4f2 | 175 | self.a_s_with_effect = None |
52d58baf | 176 | self.current_frame = max(0, int(delta) * self.current_frame + int(value * self.audio_segment.frame_rate)) |
ccc8b4f2 | 177 | # FIXME: si on fait un seek + delta, adapter le "loop" |
52d58baf | 178 | |
1b4b78f5 | 179 | def stop(self, fade_out = 0, wait = False): |
29597680 IB |
180 | if self.is_loaded_playing(): |
181 | ms = int(self.sound_position * 1000) | |
182 | ms_fo = max(1, int(fade_out * 1000)) | |
183 | ||
22514f3a | 184 | new_audio_segment = self.current_audio_segment[:ms + ms_fo].fade_out(ms_fo) |
29597680 | 185 | with self.music_lock: |
22514f3a IB |
186 | self.current_audio_segment = new_audio_segment |
187 | self.stop_playing() | |
1b4b78f5 IB |
188 | if wait: |
189 | self.wait_end() | |
0e5d59f7 | 190 | else: |
29597680 IB |
191 | self.stop_playing() |
192 | self.stopped() | |
0e5d59f7 | 193 | |
1b4b78f5 | 194 | def set_gain(self, db_gain): |
ccda4cb9 IB |
195 | self.db_gain += db_gain |
196 | self.volume_factor = 10 ** (self.db_gain / 20) | |
29597680 | 197 | |
8e50011c IB |
198 | def set_volume(self, value, delta = False): |
199 | [db_gain, self.volume] = gain(value + int(delta) * self.volume, self.volume) | |
1b4b78f5 IB |
200 | |
201 | self.set_gain(db_gain) | |
be27763f | 202 | |
b86db9f1 | 203 | def wait_end(self): |
0deb82a5 IB |
204 | self.wait_event.clear() |
205 | self.wait_event.wait() | |
d479af33 | 206 |