import threading import pydub import pygame import math class MusicFile: def __init__(self, filename, lock, channel_id, name = None, gain = 1): self.filename = filename self.channel_id = channel_id self.name = name or filename self.raw_data = None self.gain = gain self.loaded = False self.flag_paused = False threading.Thread(name = "MSMusicLoad", target = self.load_sound, args = [lock]).start() def load_sound(self, lock): lock.acquire() print("Loading « {} »".format(self.name)) volume_factor = 20 * math.log10(self.gain) audio_segment = pydub.AudioSegment.from_file(self.filename).set_frame_rate(44100).apply_gain(volume_factor) self.sound_duration = audio_segment.duration_seconds self.raw_data = audio_segment.raw_data print("Loaded « {} »".format(self.name)) self.loaded = True lock.release() def is_playing(self): return self.channel().get_busy() def is_paused(self): return self.flag_paused def play(self, fade_in = 0, volume = 100, start_at = 0): self.channel().set_endevent() self.channel().set_endevent(pygame.USEREVENT) self.set_volume(volume) if start_at > 0: raw_data_length = len(self.raw_data) start_offset = int((raw_data_length / self.sound_duration) * start_at) start_offset = start_offset - (start_offset % 2) sound = pygame.mixer.Sound(self.raw_data[start_offset:]) else: sound = pygame.mixer.Sound(self.raw_data) self.channel().play(sound, fade_ms = int(fade_in * 1000)) self.flag_paused = False def pause(self): self.channel().pause() self.flag_paused = True def unpause(self): self.channel().unpause() self.flag_paused = False def stop(self, fade_out = 0): if fade_out > 0: self.channel().fadeout(int(fade_out * 1000)) else: self.channel().stop() def set_volume(self, value): if value < 0: value = 0 if value > 100: value = 100 self.channel().set_volume(value / 100) def wait_end(self): pass def channel(self): return pygame.mixer.Channel(self.channel_id)