试试看：
from PyQt5.QtGui import QIcon, QFontfrom PyQt5.QtCore import QDir, Qt, QUrl, QSizefrom PyQt5.QtMultimedia import QMediaContent, QMediaPlayerfrom PyQt5.QtMultimediaWidgets import QVideoWidgetfrom PyQt5.QtWidgets import (QApplication, QFileDialog, QHBoxLayout, QLabel, QPushButton, QSizePolicy, QSlider, QStyle, QVBoxLayout, QWidget, QStatusBar)class VideoPlayer(QWidget): def __init__(self, parent=None): super(VideoPlayer, self).__init__(parent) self.mediaPlayer = QMediaPlayer(None, QMediaPlayer.VideoSurface) btnSize = QSize(16, 16) videoWidget = QVideoWidget() openButton = QPushButton("Open Video")openButton.setToolTip("Open Video File") openButton.setStatusTip("Open Video File") openButton.setFixedHeight(24) openButton.setIconSize(btnSize) openButton.setFont(QFont("Noto Sans", 8)) openButton.setIcon(QIcon.fromTheme("document-open", QIcon("D:/_Qt/img/open.png"))) openButton.clicked.connect(self.abrir) self.playButton = QPushButton() self.playButton.setEnabled(False) self.playButton.setFixedHeight(24) self.playButton.setIconSize(btnSize) self.playButton.setIcon(self.style().standardIcon(QStyle.SP_MediaPlay)) self.playButton.clicked.connect(self.play) self.positionSlider = QSlider(Qt.Horizontal) self.positionSlider.setRange(0, 0) self.positionSlider.sliderMoved.connect(self.setPosition) self.statusBar = QStatusBar() self.statusBar.setFont(QFont("Noto Sans", 7)) self.statusBar.setFixedHeight(14) controlLayout = QHBoxLayout() controlLayout.setContentsMargins(0, 0, 0, 0) controlLayout.addWidget(openButton) controlLayout.addWidget(self.playButton) controlLayout.addWidget(self.positionSlider) layout = QVBoxLayout() layout.addWidget(videoWidget) layout.addLayout(controlLayout) layout.addWidget(self.statusBar) self.setLayout(layout) self.mediaPlayer.setVideoOutput(videoWidget) self.mediaPlayer.stateChanged.connect(self.mediaStateChanged) self.mediaPlayer.positionChanged.connect(self.positionChanged) self.mediaPlayer.durationChanged.connect(self.durationChanged) self.mediaPlayer.error.connect(self.handleError) self.statusBar.showMessage("Ready") def abrir(self): fileName, _ = QFileDialog.getOpenFileName(self, "Selecciona los mediose", ".", "Video Files (*.mp4 *.flv *.ts *.mts *.avi)") if fileName != '': self.mediaPlayer.setMedia( QMediaContent(QUrl.fromLocalFile(fileName))) self.playButton.setEnabled(True) self.statusBar.showMessage(fileName) self.play() def play(self): if self.mediaPlayer.state() == QMediaPlayer.PlayingState: self.mediaPlayer.pause() else: self.mediaPlayer.play() def mediaStateChanged(self, state): if self.mediaPlayer.state() == QMediaPlayer.PlayingState: self.playButton.setIcon( self.style().standardIcon(QStyle.SP_MediaPause)) else: self.playButton.setIcon( self.style().standardIcon(QStyle.SP_MediaPlay)) def positionChanged(self, position): self.positionSlider.setValue(position) def durationChanged(self, duration): self.positionSlider.setRange(0, duration) def setPosition(self, position): self.mediaPlayer.setPosition(position) def handleError(self): self.playButton.setEnabled(False) self.statusBar.showMessage("Error: " + self.mediaPlayer.errorString())if __name__ == '__main__': import sys app = QApplication(sys.argv) player = VideoPlayer() player.setWindowTitle("Player") player.resize(600, 400) player.show() sys.exit(app.exec_())
