如何在tkinter窗口中显示视频预览

Question

我在如何在 tkinter 窗口中显示视频预览窗口时遇到问题。下面的代码将播放视频，但我想在tkinter窗口中显示该视频。

蟒蛇代码：

from moviepy.editor import *
from moviepy.video.fx.resize import resize  
import pygame   
pygame.display.set_caption('Kumawat!')   
clip=VideoFileClip('mk.mp4')    
w=1300    
h=700    
display=(w,h)       
clip.resize(display).preview()    
pygame.quit()    

Answer 1

经过一些研究，您似乎无法轻松地将剪辑嵌入到 tkinter 框架中。我想出的解决方案是：

• 使用imageio下载视频
• 使用迭代器将每个视频帧提取到图像中
• 将图像转换为图像Tk
• 将此图像添加到 TKeinter 标签

在下面的示例中，我添加了两个控制按钮来开始和停止视频，以及一个等待循环来实时运行视频，假设每秒 24 帧。我还没有研究过如何包含声音。

import time
import tkinter as tk
import imageio
from PIL import Image, ImageTk
global pause_video
# download video at: http://www.html5videoplayer.net/videos/toystory.mp4
video_name = "toystory.mp4"
video = imageio.get_reader(video_name)

def video_frame_generator():
    def current_time():
        return time.time()
    start_time = current_time()
    _time = 0
    for frame, image in enumerate(video.iter_data()):
        # turn video array into an image and reduce the size
        image = Image.fromarray(image)
        image.thumbnail((750, 750), Image.ANTIALIAS)
        # make image in a tk Image and put in the label
        image = ImageTk.PhotoImage(image)
        # introduce a wait loop so movie is real time -- asuming frame rate is 24 fps
        # if there is no wait check if time needs to be reset in the event the video was paused
        _time += 1 / 24
        run_time = current_time() - start_time
        while run_time < _time:
            run_time = current_time() - start_time
        else:
            if run_time - _time > 0.1:
                start_time = current_time()
                _time = 0
        yield frame, image

def _stop():
    global pause_video
    pause_video = True

def _start():
    global pause_video
    pause_video = False

if __name__ == "__main__":
    root = tk.Tk()
    root.title('Video in tkinter')
    my_label = tk.Label(root)
    my_label.pack()
    tk.Button(root, text='start', command=_start).pack(side=tk.LEFT)
    tk.Button(root, text='stop', command=_stop).pack(side=tk.LEFT)
    pause_video = False
    movie_frame = video_frame_generator()
    while True:
        if not pause_video:
            frame_number, frame = next(movie_frame)
            my_label.config(image=frame)
        root.update()
    root.mainloop()