import cv2
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import tkinter as tk
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from tkinter import filedialog, ttk
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from PIL import Image, ImageTk
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class VideoPlayer:
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def __init__(self, root):
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self.root = root
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self.root.title("Tkinter MP4 播放器")
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# 视频控件
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self.video_label = tk.Label(root)
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self.video_label.pack()
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# 按钮和进度条区域
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controls_frame = tk.Frame(root)
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controls_frame.pack()
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self.play_button = tk.Button(controls_frame, text="播放", command=self.toggle_play_pause)
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self.play_button.grid(row=0, column=0, padx=5)
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self.replay_button = tk.Button(controls_frame, text="重新播放", command=self.replay_video)
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self.replay_button.grid(row=0, column=1, padx=5)
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self.progress = ttk.Scale(controls_frame, from_=0, to=1, orient="horizontal", command=self.seek_video)
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self.progress.grid(row=0, column=2, padx=5, sticky="ew")
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controls_frame.columnconfigure(2, weight=1)
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# 状态变量
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self.cap = None
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self.is_playing = False
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self.current_frame = 0
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self.total_frames = 0
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self.fps = 30
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self.video_path = None
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# 文件打开按钮
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self.open_button = tk.Button(root, text="打开视频", command=self.open_file)
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self.open_button.pack()
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def open_file(self):
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self.video_path = filedialog.askopenfilename(filetypes=[("MP4文件", "*.mp4"), ("所有文件", "*.*")])
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if not self.video_path:
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return
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self.load_video()
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def load_video(self):
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if self.cap:
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self.cap.release()
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self.cap = cv2.VideoCapture(self.video_path)
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if not self.cap.isOpened():
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tk.messagebox.showerror("错误", "无法打开视频")
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return
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self.fps = int(self.cap.get(cv2.CAP_PROP_FPS))
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self.total_frames = int(self.cap.get(cv2.CAP_PROP_FRAME_COUNT))
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self.current_frame = 0
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self.progress.config(to=self.total_frames)
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self.is_playing = True
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self.play_button.config(text="暂停")
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self.play_video()
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def play_video(self):
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if not self.is_playing or not self.cap:
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return
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ret, frame = self.cap.read()
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if ret:
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self.current_frame += 1
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self.progress.set(self.current_frame)
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frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
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img = ImageTk.PhotoImage(Image.fromarray(frame))
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self.video_label.config(image=img)
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self.video_label.image = img
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self.root.after(int(1000 / self.fps), self.play_video)
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else:
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self.is_playing = False
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self.play_button.config(text="播放")
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def toggle_play_pause(self):
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if not self.cap:
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return
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if self.is_playing:
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self.is_playing = False
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self.play_button.config(text="播放")
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else:
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self.is_playing = True
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self.play_button.config(text="暂停")
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self.play_video()
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def replay_video(self):
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if not self.cap:
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return
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self.cap.set(cv2.CAP_PROP_POS_FRAMES, 0)
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self.current_frame = 0
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self.progress.set(0)
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self.is_playing = True
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self.play_button.config(text="暂停")
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self.play_video()
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def seek_video(self, value):
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if not self.cap:
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return
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self.current_frame = int(float(value))
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self.cap.set(cv2.CAP_PROP_POS_FRAMES, self.current_frame)
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if not self.is_playing:
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self.play_video()
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# 创建主窗口
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root = tk.Tk()
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app = VideoPlayer(root)
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root.mainloop()
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