import tkinter as tk
from tkinter import filedialog
from pygame import mixer
mixer.init()
firsttime = False
song2switch = True
root = tk.Tk()
canvas = tk.Canvas(root, width=400, height=250)
canvas.pack()
def loadsong1():
global song1
song1 = tk.filedialog.askopenfile(parent=root, initialdir="C:/",title="choose first song",filetypes=[("mp3 files", ".mp3")])
def loadsong2():
global song2
song2 = tk.filedialog.askopenfile(parent=root, initialdir="C:/",title="choose second song",filetypes=[("mp3 files", ".mp3")])
def play():
mixer.music.load(song1)
mixer.music.play()
def switch():
global firsttime
global song2switch
global time_of_song
if firsttime == False:
time_of_song = mixer.music.get_pos()
time_of_song /= 1000
mixer.music.stop()
mixer.music.load(song2)
mixer.music.play(start = time_of_song)
firsttime = True
song2switch = False
else:
if song2switch == False:
time_of_song = mixer.music.get_pos()
time_of_song /= 1000
mixer.music.stop()
mixer.music.load(song1)
mixer.music.play(start = time_of_song)
song2switch = True
playbutton = tk.Button(canvas,text="PLAY",command=play)
canvas.create_window(200,240,window=playbutton)
load1button = tk.Button(canvas, text="Load Song One",command=loadsong1)
canvas.create_window(100,240,window=load1button)
load2button = tk.Button(canvas, text="Load Song Two", command=loadsong2)
canvas.create_window(300,240,window=load2button)
switchbutton = tk.Button(canvas, text="SWITCH", command=switch)
canvas.create_window(200,200, window=switchbutton)
root.mainloop()
我正在尝试使此音乐播放器能够在两首歌曲之间切换,同时保持彼此之间的时间相同(例如,当我切换已播放一分钟的歌曲时,另一首歌曲将在中开始播放一分钟),但当我尝试切换到第一首歌曲时,会出现以下错误:
pygame.error: Couldn't read first 12 bytes of audio data
我该如何解决这个问题
这是因为您使用了
askopenfile(...)
,它将以读取模式打开所选文件并返回文件句柄当您切换到
song2
时,song1
关闭。当您想再次切换回song1
时,mixer.music.load(song1)
将异常失败,因为文件已关闭用
askopenfilename()
代替askopenfile()
注1:
mixer.music.get_pos()
返回相对于start
的elapsed
时间,而不是开始时间注2:切换两次后,您的切换逻辑将无法正常工作
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