本文實例為大家分享了python實現媒體播放器功能的具體代碼，供大家參考，具體內容如下

playMP3.py

# -*- coding: utf-8 -*- import wx; import wx.media; import os; import SPrint; import mediaStateBar; import mediaList; import SaveLog; import MediaItem; woldcart = "media files|*.*|avi|*.avi|rmvb|*.rmvb|rm|*.rm|wma|*.wma|mp3|*.mp3"; class MediaFrame(wx.Frame):   def __init__(self):     wx.Frame.__init__(self,None,wx.NewId(),u"媒體播放器",pos=wx.DefaultPosition,size=(500,500));     self.media = '';     try:       self.media = wx.media.MediaCtrl(self,style=wx.SIMPLE_BORDER,                        #szBackend=wx.media.MEDIABACKEND_DIRECTSHOW                        #szBackend=wx.media.MEDIABACKEND_QUICKTIME                        #szBackend=wx.media.MEDIABACKEND_WMP10                        );       self.media.Bind(wx.media.EVT_MEDIA_LOADED,self.mediaLoaded);       self.media.Bind(wx.media.EVT_MEDIA_STATECHANGED,self.mediaStateChange)     except NotImplementedError:       self.Destroy()       raise;     self.listView = '';     self.item = MediaItem.MediaItem();     self.sb = mediaStateBar.MediaStateBar(self);     self.SetStatusBar(self.sb);     self.log = SaveLog.SaveLog();     #self.log.test();     self.menu = wx.Menu()     self.openMenu = self.menu.Append(wx.NewId(),u"打開文件");     self.Bind(wx.EVT_MENU,self._openFile,self.openMenu);     self.quitMenu = self.menu.Append(wx.NewId(),u"退出");     self.Bind(wx.EVT_MENU,self.quit,self.quitMenu);     self.viewMenu = wx.Menu();     self.listMenu = self.viewMenu.Append(wx.NewId(),u"打開播放列表");     self.Bind(wx.EVT_MENU,self.openList,self.listMenu);     self.loadListMenu = self.viewMenu.Append(wx.NewId(),u"加載播放列表");     self.Bind(wx.EVT_MENU,self.loadMediaList,self.loadListMenu);     self.saveListMenu = self.viewMenu.Append(wx.NewId(),u"保存播放列表")     self.Bind(wx.EVT_MENU,self.saveMediaList,self.saveListMenu);     menuBar = wx.MenuBar();     menuBar.Append(self.menu,u"文件")     menuBar.Append(self.viewMenu,u"播放列表")     self.SetMenuBar(menuBar);     self.slider = wx.Slider(self,wx.NewId(), 0,0,100);     self.Bind(wx.EVT_SLIDER,self.onSeek,self.slider);     self.btnGroupSizer = wx.BoxSizer(wx.HORIZONTAL);     self.btnGroupSizer.Add((5,5),0)     self.playBtn = self.createButton("./pic/play.png",self.playMp3,u"播放");     self.playBtn.Disable()     self.btnGroupSizer.Add(self.playBtn);     self.btnGroupSizer.Add((5,5),0)     self.pauseBtn = self.createButton("./pic/pause.png",self.pauseMp3,u"暫停");     self.pauseBtn.Disable()     self.btnGroupSizer.Add(self.pauseBtn);     self.btnGroupSizer.Add((5,5),0)     self.stopBtn = self.createButton("./pic/stop.png",self.stopMp3,u"停止");     self.stopBtn.Disable()     self.btnGroupSizer.Add(self.stopBtn);     self.btnGroupSizer.Add((5,5),0)     self.preBtn = self.createButton("./pic/pre.png",self.preMp3,u"前一個");     self.preBtn.Disable()     self.btnGroupSizer.Add(self.preBtn);     self.btnGroupSizer.Add((5,5),0)     self.nextBtn = self.createButton("./pic/next.png",self.nextMp3,u"下一個");     self.nextBtn.Disable()     self.btnGroupSizer.Add(self.nextBtn);     self.btnGroupSizer.Add((5,5),0)     self.openBtn = self.createButton("./pic/media.png",self._openFile,u"打開文件");     #self.openBtn.Disable()     self.btnGroupSizer.Add(self.openBtn);     self.btnGroupSizer.Add((5,5),0)     self.listBtn = self.createButton("./pic/list.png",self.openList,u"打開列表");     #self.listBtn.Disable()     self.btnGroupSizer.Add(self.listBtn)     self.btnGroupSizer.Add((5,5),0)     self.volSlider = wx.Slider(self,wx.NewId(), 0,0,100);     self.Bind(wx.EVT_SLIDER,self.volumeSeek,self.volSlider);     self.btnGroupSizer.Add(self.volSlider)     self.btnGroupSizer.Add((5,5),0)     self.volTxt = wx.StaticText(self,wx.NewId(),"")     self.btnGroupSizer.Add(self.volTxt)     self.btnGroupSizer.Add((5,5),0)     mainSizer = wx.BoxSizer(wx.VERTICAL);     mainSizer.Add(self.media,1,wx.EXPAND|wx.ALL,5);     #mainSizer.Add((5,5),0)     mainSizer.Add(self.slider,0,wx.EXPAND|wx.ALL,5);     #mainSizer.Add((2,2),0)     mainSizer.Add(self.btnGroupSizer,0,wx.EXPAND|wx.ALL,5);     #mainSizer.Add((2,2),0)     self.SetSizer(mainSizer);     self.Layout();     self.timer = wx.Timer(self)     self.Bind(wx.EVT_TIMER,self.onTimer);     self.timer.Start(200);   def createButton(self,img,clickFun,tip=""):     bmp = wx.Bitmap(img, wx.BITMAP_TYPE_PNG);     btn = wx.BitmapButton(self,wx.NewId(),bmp);     if tip != '' : btn.SetToolTipString(tip);     btn.Bind(wx.EVT_BUTTON,clickFun);     return btn;   def quit(self,event):     self.Destroy();   def playMp3(self,e):     if self.item != '':       self.media.Play()     # self.media.SetInitialSize()   def pauseMp3(self,e=''):     self.media.Pause()   def stopMp3(self,e=''):     self.media.Stop()   def preMp3(self,e):     if self.item!='':       self.item = self.log.getPreItem(self.item.index)       if self.item != '':         self.playMedia(self.item.url,self.item.fileName);   def nextMp3(self,e):     if self.item!='':       self.item = self.log.getNextItem(self.item.index)       if self.item != '':         self.playMedia(self.item.url,self.item.fileName);   def onSeek(self,event):     self.media.Seek(self.slider.GetValue())   def callAfterPlayMedia(self,url):     #self.media.SetInitialSize();     self.media.Play();   def playMedia(self,url,filename):     #print SPrint.encodeFromSystem( u"播放文件: " ) , SPrint.encodeFromSystem(url) ;     if self.media.Load(url) != True:       return ;     self.item = MediaItem.MediaItem();     self.item.fileName = filename;     self.item.url = url;     self.SetTitle(filename)     self.SetStatusText(filename,1)     #wx.FutureCall(2000,self.callAfterPlayMedia,url);   def _openFile(self,event):     dialog = wx.FileDialog(self,u"打開文件",'F://movie//',"",woldcart,style=wx.OPEN|wx.CHANGE_DIR)     if dialog.ShowModal() == wx.ID_OK:       self.playMedia(dialog.GetPath(),dialog.GetFilename())     dialog.Destroy();   def cellRemove(self,url,all=False):     if all == True:       self.stopMp3()       self.item = '';       return ;     if self.item.url == url:       self.stopMp3();       self.item = '';   def volumeSeek(self,evt):     #print float(self.volSlider.GetValue()/100);     self.media.SetVolume(self.volSlider.GetValue()/100.0)     self.volTxt.SetLabel(str(self.volSlider.GetValue())+'%')   def mediaLoaded(self,e):     print "media loaded!"     self.media.Play();     self.slider.SetRange(0,self.media.Length());     self.item.length = self.getAccurateTime(self.media.Length()/1000);     if self.log.addItem(self.item):       if self.listView != '':         self.listView.reflash(self.log);     if self.log.haveNextItem(self.item.index):       self.nextBtn.Enable();     else:       self.nextBtn.Disable()     if self.log.havePreItem(self.item.index):       self.preBtn.Enable()     else:       self.preBtn.Disable();     self.volSlider.SetValue(self.media.GetVolume()*100);     self.volTxt.SetLabel(str(self.volSlider.GetValue())+'%')   def mediaStateChange(self,evt):     if self.media.GetState() == wx.media.MEDIASTATE_PAUSED:       self.playBtn.Enable()       self.pauseBtn.Disable()       self.stopBtn.Enable();       self.SetStatusText(u"暫停")     elif self.media.GetState() == wx.media.MEDIASTATE_PLAYING:       self.playBtn.Disable()       self.pauseBtn.Enable()       self.stopBtn.Enable();       self.SetStatusText(u"播放")     elif self.media.GetState() == wx.media.MEDIASTATE_STOPPED:       self.playBtn.Enable()       self.pauseBtn.Enable()       self.stopBtn.Disable();       self.SetStatusText(u"停止")   def onTimer(self,evt):     self.slider.SetValue(self.media.Tell());     self.SetStatusText(self.creatTimeStatusTEXT(),1)   def creatTimeStatusTEXT(self):     current = self.getAccurateTime(self.media.Tell()/1000);     total = self.getAccurateTime(self.media.Length()/1000);     return ' ' + current + '/' + total;   def openList(self,evt):     if self.listView == '':       self.listView = mediaList.MediaListView(self,self.log);       self.listView.CenterOnParent(wx.BOTH);       self.listView.Show();       self.listView.Bind(wx.EVT_CLOSE,self.closeOpenList);     else:       self.closeOpenList(evt);   def closeOpenList(self,evt):     self.listView.Destroy();     self.listView = '';   def loadMediaList(self,evt):     woldcart1 = "txt|*.txt";     dialog = wx.FileDialog(self,u"加載播放列表",'C:',"",woldcart1,style=wx.OPEN|wx.CHANGE_DIR)     if dialog.ShowModal() == wx.ID_OK:       self._loadMediaList(dialog.GetPath())     dialog.Destroy();   def _loadMediaList(self,url):     f = file(url)     lines = f.readlines()     for line in lines:       if line:         self.log.loadLog(line);   def saveMediaList(self,evt):     woldcart1 = "txt|*.txt";     dialog = wx.FileDialog(self,u"保存播放列表",'C:',"",woldcart1,style=wx.SAVE|wx.CHANGE_DIR)     if dialog.ShowModal() == wx.ID_OK:       self._saveMediaList(dialog.GetPath())     dialog.Destroy();   def _saveMediaList(self,url):     f = file(url,"w+")     f.writelines(self.log.createLog());     f.close();     self.showMessage(u"保存成功！");   def showMessage(self,str):     dlg = wx.MessageDialog(self, str,u"消息", wx.OK | wx.ICON_INFORMATION)     dlg.ShowModal()     dlg.Destroy()   def getAccurateTime(self,s):    h = 0    m = 0    if s/60 !=0:      m = s/60      s = s%60    if m/60 !=0:      h = m/60      m = m%60    return str(h)+':'+str(m)+':'+str(s)  if __name__ == "__main__":   app = wx.PySimpleApp()   frame = MediaFrame();   bmp = wx.Icon("./pic/media.png",wx.BITMAP_TYPE_PNG)   frame.SetIcon(bmp)   frame.Show();   app.MainLoop();