我有覆盆子pi3。我想用phonon + qt + python显示任何类型的视频。我不想在QT中使用c ++。我曾尝试使用以下代码,但它给出的错误如下:没有名为phonon的模块。我已经使用sudo apt-get install phonon安装了phonon,但它仍然给出了这样的错误。任何人都知道如何解决这个问题,或者有没有其他方法可以使用python + qt显示视频,还是有其他方法来安装声子?
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答案 0 :(得分:1)
您必须使用以下命令为pyqt安装phonon:
sudo apt-get install python-qt4-phonon
此外,您必须更正某些导入和部分代码:
from PyQt4 import QtGui
from PyQt4.phonon import Phonon
class Window(QtGui.QWidget):
def __init__(self, parent=None):
super(Window, self).__init__(parent=parent)
self.media = Phonon.MediaObject(self)
self.video = Phonon.VideoWidget(self)
self.video.setMinimumSize(400, 400)
self.audio = Phonon.AudioOutput(Phonon.VideoCategory, self)
Phonon.createPath(self.media, self.audio)
Phonon.createPath(self.media, self.video)
self.button = QtGui.QPushButton('Choose File', self)
self.list = QtGui.QListWidget(self)
self.list.addItems(Phonon.BackendCapabilities.availableMimeTypes())
layout = QtGui.QVBoxLayout(self)
layout.addWidget(self.video, 1)
layout.addWidget(self.button)
layout.addWidget(self.list)
self.media.stateChanged.connect(self.handleStateChanged)
self.button.clicked.connect(self.handleButton)
def handleButton(self):
if self.media.state() == Phonon.PlayingState:
self.media.stop()
else:
path = QtGui.QFileDialog.getOpenFileName(self, self.button.text())
if path:
self.media.setCurrentSource(Phonon.MediaSource(path))
self.media.play()
def handleStateChanged(self, newstate, oldstate):
if newstate == Phonon.PlayingState:
self.button.setText('Stop')
elif newstate != Phonon.LoadingState and newstate != Phonon.BufferingState:
self.button.setText('Choose File')
if newstate == Phonon.ErrorState:
source = self.media.currentSource().fileName()
print('ERROR: could not play:', source.toLocal8Bit().data())
print(' %s' % self.media.errorString().toLocal8Bit().data())
if __name__ == '__main__':
import sys
app = QtGui.QApplication(sys.argv)
app.setApplicationName('phonon Player')
window = Window()
window.show()
sys.exit(app.exec_())
<强>截图:强>