[PyQt] 回复： Phonon VideoPlayer causes python to crash

[iMath]

why not try 

QMediaPlayer in PyQt5 ?
http://qt-project.org/doc/qt-5/qmediaplayer.html


Phonon was dropped since Qt5.
------------------ 原始邮件 ------------------
发件人: "Sebastian Eckweiler";<sebastian.eckweiler at twt-gmbh.de>;
发送时间: 2014年6月3日(星期二) 晚上7:12
收件人: "pyqt"<pyqt at riverbankcomputing.com>; 

主题: [PyQt] Phonon VideoPlayer causes python to crash



Hello, 
 
I'm having an issue using the Phonon VideoPlayer. 
Loading or starting to play a video file causes the python executable to crash, leaving me only with a windows dialog saying that "python.exe has stopped working". 
 
I've boiled it down to the following, minimalistic example: 
 
import sys 
 
from PyQt4.phonon import Phonon 
from PyQt4 import QtGui, QtCore 
import PyQt4.QtCore 
 
import os 
 
class TestPlayer(QtGui.QMainWindow): 
    def __init__(self): 
        QtGui.QMainWindow.__init__(self) 
        widget = QtGui.QWidget() 
        layout = QtGui.QVBoxLayout() 
        widget.setLayout(layout) 
 
        self.setCentralWidget(widget) 
 
        self.player = Phonon.VideoPlayer() 
        layout.addWidget(self.player) 
 
        start = QtGui.QPushButton('Start') 
        start.clicked.connect(self.select_and_play) 
        layout.addWidget(start) 
 
        self.mediaSource = None 
 
    def select_and_play(self): 
        f = QtGui.QFileDialog.getOpenFileName(None, 'File :-)') 
        f = os.path.normpath(unicode(f)) 
        print 'playing: %s' % f 
        self.mediaSource = Phonon.MediaSource(f) 
        self.player.load(self.mediaSource) 
        self.player.play() 
 
if __name__ == '__main__': 
    print 'pyqt: %s' % PyQt4.QtCore.PYQT_VERSION_STR 
    print 'qt: %s' % PyQt4.QtCore.QT_VERSION_STR 
    print 'py version: %s' % sys.version 
 
    app = QtGui.QApplication([]) 
    tester = TestPlayer() 
    tester.show() 
    app.exec_() 
 
 
This gives: 
 
pyqt: 4.10.4 
qt: 4.8.5 
py version: 2.7.6 (default, Nov 10 2013, 19:24:18) [MSC v.1500 32 bit (Intel)] 
playing: C:\Users\Public\Videos\Sample Videos\Wildlife.wmv 
 
This is on a Windows 7 64bit System using the portable python distribution: 
ftp://ftp.nluug.nl/pub/languages/python/portablepython/v2.7/PortablePython_2.7.6.1.exe 
I tried this with PyQt versions from 4.9.6, 4.10.4 to the latest as of yesterday using "normal" python installations as well, without any success. 
The video file should be available on any windows 7 installation. 
 
Remarkably, all the Phonon examples included in PyQt are working just fine - though no Video example is included therein. 
 
Any hints on where to start looking for the issue here? 
 
Cheers 
Sebastian
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.riverbankcomputing.com/pipermail/pyqt/attachments/20140605/b5a160bb/attachment.html>