如何在google colab中播放mp4视频

from IPython.display import HTML

from google.colab import files
uploaded = files.upload()

def play_video(file_name):
    video = open(file_name, 'rb').read()
    video_encoded = base64.b64encode(video).decode('utf-8')
    video_tag = f'<video controls alt="test" src="data:video/mp4;base64,{video_encoded}">'
    return HTML(video_tag)

play_video('your_video.mp4')