在使用pyqt videopalyer不能播放MP4的解决方法

在使用pyqt的videoplayer开发视频播放器的时候，发现不能播放MP4，结果发现没有解码器，在电脑上安装MP4解码器就可以了。K-Lite Codec Pack支持大多数格式的视频解码

下面是我写的视频播放器，比较简单

# -*- coding: utf-8 -*-

from PyQt4 import QtCore, QtGui, Qt

class Player(QtGui.QMainWindow):

style = 'background:url(images/{0}.png) no-repeat center;border:none;'

currentMovie = None

def __init__(self):

QtGui.QMainWindow.__init__(self)

self.setWindowTitle("ADAM Player") #设置窗体的标题

self.resize(800, 500) #设置窗体大小

self.setWindowIcon(QtGui.QIcon('gita.ico')) #设置icon

self.setStyleSheet('background:white')

# self.setWindowFlags(Qt.Qt.FramelessWindowHint)

self.setMask(QtGui.QPixmap('images/bg.png').mask())

self.setMouseTracking(True)

menu = self.menuBar()

menu.setStyleSheet('background:#000;')

self.menu = menu.addMenu(u'&文件')

open = self.menu.addAction(u'打开')

self.connect(open, QtCore.SIGNAL('triggered()'), self.openMovie)

self.menu.setStyleSheet('background:none;')

#播放器对象

self.videoPlayer = phonon.Phonon.VideoPlayer(self)

self.videoPlayer.resize(QtCore.QSize(800, 450))

#播放按钮

self.playBtn = QtGui.QPushButton(self)

self.playBtn.setObjectName('playBtn')

self.playBtn.setStyleSheet(self.style.format('play'))

self.playBtn.setMask(QtGui.QPixmap('images/play.png').mask())

self.playBtn.resize(48, 48)

self.connect(self.playBtn, QtCore.SIGNAL('clicked()'), self.play) #绑定点击事件

#重新播放按钮

self.resetBtn = QtGui.QPushButton(self)

self.resetBtn.setObjectName('resetBtn')

self.resetBtn.setStyleSheet(self.style.format('reset'))

self.resetBtn.setMask(QtGui.QPixmap('images/reset.png').mask())

self.resetBtn.resize(48, 48)

self.connect(self.resetBtn, QtCore.SIGNAL('clicked()'), self.restart) #绑定点击事件

self.videoPlayer.move(0, 20)

self.videoPlayer.show()

self.playBtn.move(20, 415)

self.resetBtn.move(80, 415)

def play(self):

if not self.currentMovie:

QtGui.QMessageBox.warning(self, u'提示', u'请选择影片')

return False

if self.videoPlayer.isPlaying():

self.videoPlayer.pause()

self.position = self.videoPlayer.currentTime()

self.playBtn.setStyleSheet(self.style.format('play'))

else:

if self.videoPlayer.isPaused():

self.videoPlayer.play()

self.playBtn.setStyleSheet(self.style.format('pause'))

else:

# mediaSource = phonon.Phonon.MediaSource("./source/122195353176400128.mp3")

# mediaSource = phonon.Phonon.MediaSource(u"./source/爱她的枪(预告片).mpeg")

mediaSource = phonon.Phonon.MediaSource(self.currentMovie)

self.videoPlayer.load(mediaSource)

self.videoPlayer.play()

self.playBtn.setStyleSheet(self.style.format('pause'))

self.setWindowTitle(self.currentMovie)

def restart(self):

self.videoPlayer.seek(0)

def openMovie(self):

self.currentMovie = unicode(QtGui.QFileDialog.getOpenFileName(self))

if self.currentMovie:

self.videoPlayer.load(phonon.Phonon.MediaSource(self.currentMovie))

self.play()

from PyQt4 import phonon

if __name__ == "__main__":

import sys

app = QtGui.QApplication(sys.argv)

palyer = Player()

palyer.show()

sys.exit(app.exec_())