如何在 QtVideoWigdet 中加载路径

Question

我有一个关于pyqt5的问题。我想制作一个视频播放器。现在我被困住了，我怎么能给他们完整的路径而不是点击按钮并转到路径和 select 视频我只想要它这个文件路径。请看看我的代码。我为 raspberry pi 和 window

做了这个

from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_VideoWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(733, 505)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.Video_Widget = QVideoWidget(self.centralwidget)
        self.Video_Widget.setGeometry(QtCore.QRect(0, 0, 711, 361))
        self.Video_Widget.setObjectName("Video_Widget")
        self.horizontalScrollBar = QtWidgets.QScrollBar(self.centralwidget)
        self.horizontalScrollBar.setGeometry(QtCore.QRect(0, 380, 721, 16))
        self.horizontalScrollBar.setOrientation(QtCore.Qt.Horizontal)
        self.horizontalScrollBar.setObjectName("horizontalScrollBar")
        self.play = QtWidgets.QPushButton(self.centralwidget)
        self.play.setGeometry(QtCore.QRect(10, 410, 75, 23))
        self.play.setObjectName("play")
        self.select = QtWidgets.QPushButton(self.centralwidget)
        self.select.setGeometry(QtCore.QRect(550, 410, 75, 23))
        self.select.setObjectName("select")

        self.play.clicked.connect(self.load_video)

        MainWindow.setCentralWidget(self.centralwidget)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def load_video(self):
        filepath = 'F:/Fun/Songs/12.mp4'   
        self.Video_Widget.load(filepath)
        self.horizontalScrollBar.setMediaObject(self.Video_Widget.mediaObject())
        self.Video_Widget.play()

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.play.setText(_translate("MainWindow", "play"))
        self.select.setText(_translate("MainWindow", "Select"))
from PyQt5.QtMultimediaWidgets import QVideoWidget


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_VideoWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

我也使用了官方文档中的这段代码。

 def load_video(self):
    player = QMediaPlayer()
    playlist = QMediaPlaylist(player)
    playlist.addMedia(QUrl('F:/Fun/Songs/12.mp4'))
    player.setVideoOutput(self.Video_Widget)
    self.Video_Widget.show()
    playlist.setCurrentIndex(1)
    player.play()

同时使用官方文档中的此代码。发生此错误。

Answer 1

正如错误和文档指出的那样，必须将 QMediaContent 传递给 addMedia 方法。要构建 QMediaContent，您可以使用 QUrl:

from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_VideoWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(733, 505)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.Video_Widget = QVideoWidget(self.centralwidget)
        self.Video_Widget.setGeometry(QtCore.QRect(0, 0, 711, 361))
        self.Video_Widget.setObjectName("Video_Widget")
        self.horizontalScrollBar = QtWidgets.QScrollBar(self.centralwidget)
        self.horizontalScrollBar.setGeometry(QtCore.QRect(0, 380, 721, 16))
        self.horizontalScrollBar.setOrientation(QtCore.Qt.Horizontal)
        self.horizontalScrollBar.setObjectName("horizontalScrollBar")
        self.play = QtWidgets.QPushButton(self.centralwidget)
        self.play.setGeometry(QtCore.QRect(10, 410, 75, 23))
        self.play.setObjectName("play")
        self.select = QtWidgets.QPushButton(self.centralwidget)
        self.select.setGeometry(QtCore.QRect(550, 410, 75, 23))
        self.select.setObjectName("select")
        MainWindow.setCentralWidget(self.centralwidget)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.play.setText(_translate("MainWindow", "play"))
        self.select.setText(_translate("MainWindow", "Select"))


from PyQt5.QtMultimediaWidgets import QVideoWidget
from PyQt5 import QtMultimedia


class VideoWindow(QtWidgets.QMainWindow, Ui_VideoWindow):
    def __init__(self, parent=None):
        super(VideoWindow, self).__init__(parent)
        self.setupUi(self)
        self.player = QtMultimedia.QMediaPlayer(self)
        self.player.setVideoOutput(self.Video_Widget)
        self.play.clicked.connect(self.player.play)
        self.playlist = QtMultimedia.QMediaPlaylist(self.player)
        self.player.setPlaylist(self.playlist)
        self.playlist.addMedia(
            QtMultimedia.QMediaContent(QtCore.QUrl.fromLocalFile("F:/Fun/Songs/12.mp4"))
        )
        self.playlist.setCurrentIndex(0)


if __name__ == "__main__":
    import sys

    app = QtWidgets.QApplication(sys.argv)
    w = VideoWindow()
    w.show()
    sys.exit(app.exec_())

如何在 QtVideoWigdet 中加载路径

How to load a path in QtVideoWigdet

python

pyqt

pyqt5

raspberry-pi3