我用PyGame写了一个播放器，运行的时候无响应，有没有人知道怎么回事

我用PyGame写了一个播放器，但是运行的时候一直黑屏，还无响应，等了很久依旧没有反应，有没有人知道怎么回事？

import pygame
import tkinter as tk
from tkinter import filedialog
import os
import threading


class PygamePlayer:
    def __init__(self):
        self.screen_size = (800, 600)
        pygame.init()
        pygame.display.set_caption('PygamePlayer')
        self.screen = pygame.display.set_mode(self.screen_size, pygame.HWSURFACE | pygame.DOUBLEBUF)
        self.video_surface = pygame.Surface((640, 480))
        self.clock = pygame.time.Clock()
        self.duration = 0
        self.current_time = 0
        self.paused = True
        self.full_screen = False
        self.loaded = False
        self.volume = 0.5
        self.media_type = None

    def load_media(self, path):
        try:
            if os.path.isfile(path):
                self.loaded = True
                if path.endswith('.mp4') or path.endswith('.avi') or path.endswith('.mkv'):
                    self.media_type = 'video'
                    self.media = pygame.movie.Movie(path)
                    self.media.set_display(self.video_surface, (0, 0, 640, 480))
                    self.duration = self.media.get_length()

                elif path.endswith('.mp3') or path.endswith('.wav'):
                    self.media_type = 'audio'
                    pygame.mixer.music.load(path)
                    self.duration = pygame.mixer.Sound(path).get_length() * 1000
        except:
            print('文件加载失败！')
            self.choose_file()

    def play(self):
        if self.media_type == 'video':
            self.media.play()
            self.paused = False
        elif self.media_type == 'audio':
            pygame.mixer.music.set_volume(self.volume)
            pygame.mixer.music.play()
            self.paused = False

    def pause(self):
        if self.media_type == 'video':
            self.media.stop()
            self.paused = True
        elif self.media_type == 'audio':
            pygame.mixer.music.pause()
            self.paused = True

    def rewind(self):
        if self.media_type == 'audio':
            current_time = pygame.mixer.music.get_pos() - 10000
            if current_time < 0:
                current_time = 0
            pygame.mixer.music.set_pos(current_time)
        elif self.media_type == 'video':
            current_time = self.media.get_time() - 10000
            if current_time < 0:
                current_time = 0
            self.media.set_time(current_time)

    def fast_forward(self):
        if self.media_type == 'audio':
            current_time = pygame.mixer.music.get_pos() + 10000
            if current_time > self.duration:
                current_time = self.duration
            pygame.mixer.music.set_pos(current_time)
        elif self.media_type == 'video':
            current_time = self.media.get_time() + 10000
            if current_time > self.duration:
                current_time = self.duration
            self.media.set_time(current_time)

    def toggle_full_screen(self):
        self.full_screen = not self.full_screen
        if self.full_screen:
            self.screen = pygame.display.set_mode((0, 0), pygame.FULLSCREEN | pygame.DOUBLEBUF)
        else:
            self.screen = pygame.display.set_mode(self.screen_size)

    def choose_file(self):
        def choose_file_thread():
            root = tk.Tk()
            root.withdraw()
            file_path = filedialog.askopenfilename()
            self.load_media(file_path)
            self.play()

        if not self.loaded:
            threading.Thread(target=choose_file_thread).start()

    def manage_keys(self, keys):
        if keys[pygame.K_SPACE]:
            if self.paused:
                self.play()
            else:
                self.pause()
        if keys[pygame.K_RIGHT]:
            self.fast_forward()
        if keys[pygame.K_LEFT]:
            self.rewind()
        if keys[pygame.K_ESCAPE]:
            self.toggle_full_screen()
        if keys[pygame.K_q]:
            self.quit()

    def quit(self):
        pygame.quit()
        quit()

    def run(self):
        while True:
            if self.loaded:
                for event in pygame.event.get():
                    if event.type == pygame.QUIT:
                        self.quit()
                    if event.type == pygame.KEYDOWN:
                        self.manage_keys(pygame.key.get_pressed())
                    if event.type == pygame.MOUSEBUTTONDOWN:
                        if event.button == 1:
                            self.choose_file()
                if self.media_type == 'audio':
                    self.current_time = pygame.mixer.music.get_pos()
                elif self.media_type == 'video':
                    self.current_time = self.media.get_time()
                    if self.media.get_time() >= self.duration:
                        self.media.stop()
                        self.media.play()
                if self.full_screen:
                    self.video_surface = pygame.transform.scale(self.video_surface, self.screen_size)
                else:
                    self.video_surface = pygame.transform.scale(self.video_surface, (640, 480))
                self.screen.blit(self.video_surface, (0, 0))
                time_text = '%02d:%02d:%02d / %02d:%02d:%02d' % (
                    self.current_time // 3600000, 
                    self.current_time // 60000 % 60, 
                    self.current_time // 1000 % 60, 
                    self.duration // 3600000, 
                    self.duration // 60000 % 60, 
                    self.duration // 1000 % 60
                )
                font = pygame.font.SysFont(None, 30)
                time_surface = font.render(time_text, True, (255, 255, 255))
                self.screen.blit(time_surface, (10, 10))
                pygame.display.update()
            self.clock.tick(60)


if __name__ == '__main__':
    player = PygamePlayer()
    player.run()

而且没有报错。
图片：

先创建对象，init 里 把self.loaded设为了False。
然后.run()，while True里，判断self.loaded是不是真，这里为假，就又跳回while True这一行然后循环了，，

参考链接：https://blog.csdn.net/weixin_42636075/article/details/130393820