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Commit | Line | Data |
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1 | import threading | |
2 | import pydub | |
3 | import pygame | |
4 | import math | |
5 | import time | |
6 | ||
7 | class MusicFile: | |
8 | def __init__(self, filename, lock, channel_id, name = None, gain = 1): | |
9 | self.filename = filename | |
10 | self.channel_id = channel_id | |
11 | self.name = name or filename | |
12 | self.raw_data = None | |
13 | self.gain = gain | |
14 | ||
15 | self.loaded = False | |
16 | self.flag_paused = False | |
17 | threading.Thread(name = "MSMusicLoad", target = self.load_sound, args = [lock]).start() | |
18 | ||
19 | def load_sound(self, lock): | |
20 | lock.acquire() | |
21 | print("Loading « {} »".format(self.name)) | |
22 | volume_factor = 20 * math.log10(self.gain) | |
23 | audio_segment = pydub.AudioSegment.from_file(self.filename).set_frame_rate(44100).apply_gain(volume_factor) | |
24 | self.sound_duration = audio_segment.duration_seconds | |
25 | self.raw_data = audio_segment.raw_data | |
26 | print("Loaded « {} »".format(self.name)) | |
27 | self.loaded = True | |
28 | lock.release() | |
29 | ||
30 | def is_playing(self): | |
31 | return self.channel().get_busy() | |
32 | ||
33 | def is_paused(self): | |
34 | return self.flag_paused | |
35 | ||
36 | @property | |
37 | def sound_position(self): | |
38 | if self.is_playing() and not self.is_paused(): | |
39 | return min(time.time() - self.started_at, self.sound_duration) | |
40 | elif self.is_playing() and self.is_paused(): | |
41 | return min(self.paused_at - self.started_at, self.sound_duration) | |
42 | else: | |
43 | return 0 | |
44 | ||
45 | def play(self, fade_in = 0, volume = 100, start_at = 0): | |
46 | self.channel().set_endevent() | |
47 | self.channel().set_endevent(pygame.USEREVENT) | |
48 | self.set_volume(volume) | |
49 | ||
50 | if start_at > 0: | |
51 | raw_data_length = len(self.raw_data) | |
52 | start_offset = int((raw_data_length / self.sound_duration) * start_at) | |
53 | start_offset = start_offset - (start_offset % 2) | |
54 | sound = pygame.mixer.Sound(self.raw_data[start_offset:]) | |
55 | else: | |
56 | sound = pygame.mixer.Sound(self.raw_data) | |
57 | ||
58 | self.started_at = time.time() | |
59 | self.channel().play(sound, fade_ms = int(fade_in * 1000)) | |
60 | self.flag_paused = False | |
61 | ||
62 | def pause(self): | |
63 | self.paused_at = time.time() | |
64 | self.channel().pause() | |
65 | self.flag_paused = True | |
66 | ||
67 | def unpause(self): | |
68 | self.started_at += (time.time() - self.paused_at) | |
69 | self.channel().unpause() | |
70 | self.flag_paused = False | |
71 | ||
72 | def stop(self, fade_out = 0): | |
73 | if fade_out > 0: | |
74 | self.channel().fadeout(int(fade_out * 1000)) | |
75 | else: | |
76 | self.channel().stop() | |
77 | ||
78 | def set_volume(self, value): | |
79 | if value < 0: | |
80 | value = 0 | |
81 | if value > 100: | |
82 | value = 100 | |
83 | self.channel().set_volume(value / 100) | |
84 | ||
85 | def wait_end(self): | |
86 | pass | |
87 | ||
88 | def channel(self): | |
89 | return pygame.mixer.Channel(self.channel_id) |