在Qt或opencv python -seamlessly中的两个视频文件之间切换

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget, QVBoxLayout
from PyQt5.QtMultimedia import QMediaPlayer, QMediaContent
from PyQt5.QtMultimediaWidgets import QVideoWidget

class VideoPlayer(QMainWindow):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("Video Player")
        self.setGeometry(100, 100, 800, 600)

        self.video_widget = QVideoWidget()
        self.setCentralWidget(self.video_widget)

        self.media_player = QMediaPlayer(self)
        self.media_player.setVideoOutput(self.video_widget)

        self.play_video("video1.mp4")  # 初始播放第一个视频

    def play_video(self, filename):
        media_content = QMediaContent.fromLocalFile(filename)
        self.media_player.setMedia(media_content)
        self.media_player.play()

    def switch_video(self, filename):
        self.media_player.stop()
        self.play_video(filename)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    player = VideoPlayer()
    player.show()
    sys.exit(app.exec_())