我想播放视频的某个部分,例如,使用PyQt5从第二个30播放到第二个33。我正在使用Qmultimedia小部件。
这是我的播放器代码的外观。有没有办法在某个位置开始和结束?我一直在手动将视频剪辑为子剪辑,然后仅播放这些子剪辑,但这非常耗时。谢谢!
self.player = QtMultimedia.QMediaPlayer(None, QtMultimedia.QMediaPlayer.VideoSurface)
file = QtCore.QDir.current().filePath("path")
self.player.setMedia(QtMultimedia.QMediaContent(QtCore.QUrl.fromLocalFile(file)))
self.player.setVideoOutput(self.ui.videoWidget)
self.player.play()
答案 0 :(得分:2)
您可以使用setPosition()
方法以毫秒为单位设置位置,并通过positionChanged
信号可以监视经过的时间以停止播放
import os
from PyQt5 import QtCore, QtWidgets, QtMultimedia, QtMultimediaWidgets
class MainWindow(QtWidgets.QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
video_widget = QtMultimediaWidgets.QVideoWidget()
self.setCentralWidget(video_widget)
self.player = QtMultimedia.QMediaPlayer(self, QtMultimedia.QMediaPlayer.VideoSurface)
self.player.setVideoOutput(video_widget)
# period of time that the change of position is notified
self.player.setNotifyInterval(1)
self.player.positionChanged.connect(self.on_positionChanged)
def setInterval(self, path, start, end):
"""
path: path of video
start: time in ms from where the playback starts
end: time in ms where playback ends
"""
self.player.stop()
self.player.setMedia(QtMultimedia.QMediaContent(QtCore.QUrl.fromLocalFile(path)))
self.player.setPosition(start)
self._end = end
self.player.play()
@QtCore.pyqtSlot('qint64')
def on_positionChanged(self, position):
if self.player.state() == QtMultimedia.QMediaPlayer.PlayingState:
if position > self._end:
self.player.stop()
if __name__ == '__main__':
import sys
app = QtWidgets.QApplication(sys.argv)
w = MainWindow()
file = os.path.join(os.path.dirname(__file__), "test.mp4")
w.setInterval(file, 30*1000, 33*1000)
w.show()
sys.exit(app.exec_())