python实现媒体播放器功能

本文实例为大家分享了python实现媒体播放器功能的具体代码，供大家参考，具体内容如下

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"媒体播放器",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"打开文件");
    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"打开播放列表");
    self.Bind(wx.EVT_MENU,self.openList,self.listMenu);
    self.loadListMenu = self.viewMenu.Append(wx.NewId(),u"加载播放列表");
    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"暂停");
    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"前一个");
    self.preBtn.Disable()
    self.btnGroupSizer.Add(self.preBtn);
    self.btnGroupSizer.Add((5,5),0)
    self.nextBtn = self.createButton("./pic/next.png",self.nextMp3,u"下一个");
    self.nextBtn.Disable()
    self.btnGroupSizer.Add(self.nextBtn);
    self.btnGroupSizer.Add((5,5),0)
    self.openBtn = self.createButton("./pic/media.png",self._openFile,u"打开文件");
    #self.openBtn.Disable()
    self.btnGroupSizer.Add(self.openBtn);
    self.btnGroupSizer.Add((5,5),0)
    self.listBtn = self.createButton("./pic/list.png",self.openList,u"打开列表");
    #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"打开文件",'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"暂停")
    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"加载播放列表",'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();  

mediaList.py

# -*- coding: utf-8 -*-
import wx;
import sys;
import os;
import SaveLog;
import subprocess;
class MediaListView(wx.MiniFrame):
  def __init__(self,parent,log):
    wx.MiniFrame.__init__(self,parent,wx.NewId(),u"文件列表",style=wx.DEFAULT_FRAME_STYLE);
    self.SetAutoLayout(True)
    self.mediaMain = parent;
    self.menu = '';
    self.selectIndex = -1
    self.listDataLog = SaveLog.SaveLog();
    self.listDataLog = log;
    self.listct = wx.ListCtrl(self,wx.NewId(),style=wx.LC_REPORT|
                             wx.LC_VRULES|
                             wx.LC_SORT_ASCENDING);
    self.listct.InsertColumn(0,u"编号")
    self.listct.SetColumnWidth(0,38)
    self.listct.InsertColumn(1,u"名字")
    self.listct.SetColumnWidth(1,235)
    self.listct.InsertColumn(2,u"时间");
    self.listct.SetColumnWidth(2,105)
    frSizer = wx.BoxSizer(wx.VERTICAL)
    frSizer.Add(self.listct,1,wx.EXPAND|wx.ALL,5)
    self.listct.Bind(wx.EVT_CONTEXT_MENU,self.onRightClick)
    self.listct.Bind(wx.EVT_LEFT_DCLICK,self.doubleClick)
    self.listct.Bind(wx.EVT_LIST_ITEM_SELECTED,self.itemSelected)
    self.SetSizer(frSizer)
    self.Layout();
    wx.CallAfter(self.reflash,self.listDataLog)
  def reflash(self,log=''):
    self.listct.DeleteAllItems();
    if log != '':
      self.listDataLog = log;
    i = 0;
    ls = log.getList();
    for it in ls:
      if it:
        index = self.listct.InsertStringItem(i,str(it.index));
        self.listct.SetStringItem(index,0,str(it.index))
        self.listct.SetStringItem(index,1,it.fileName)
        self.listct.SetStringItem(index,2,it.length)
        i = i+1;
  def onRightClick(self,evt):
    self.menu = wx.Menu();
    self.playMenu = self.menu.Append(wx.NewId(),u"播放")
    self.Bind(wx.EVT_MENU,self.cellPlay,self.playMenu)
    self.delMenu = self.menu.Append(wx.NewId(),u"删除")
    self.Bind(wx.EVT_MENU,self.cellRomve,self.delMenu);
    self.dirMenu = self.menu.Append(wx.NewId(),u"打开文件目录")
    self.Bind(wx.EVT_MENU,self.openDir,self.dirMenu);
    self.delAllMenu = self.menu.Append(wx.NewId(),u"清除播放列表")
    self.Bind(wx.EVT_MENU,self.clearAll,self.delAllMenu);
    self.PopupMenu(self.menu);
    self.menu.Destroy();
  def cellPlay(self,evt):
    self.selectIndex = self.listct.GetFirstSelected();
    item = self.listDataLog.getItemByIndex(self.selectIndex);
    self.mediaMain.playMedia(item.url,item.fileName);
  def cellRomve(self,evt):
    #self.selectIndex = self.listct.GetFirstSelected();
    url = self.listDataLog.delItemByIndex(self.listct.GetFirstSelected());
    self.listDataLog.reflashDataByIndex();
    self.reflash(self.listDataLog);
    self.mediaMain.cellRemove(url)
  def doubleClick(self,evt):
    item = self.listDataLog.getItemByIndex(self.selectIndex);
    self.mediaMain.playMedia(item.url,item.fileName);
    evt.Skip();
  def itemSelected(self,evt):
    self.selectIndex = evt.GetIndex();
    evt.Skip();
  def openDir(self,evt):
    self.selectIndex = self.listct.GetFirstSelected();
    item = self.listDataLog.getItemByIndex(self.selectIndex);
    subprocess.Popen("explorer " + os.path.split(item.url)[0]);
  def clearAll(self,evt):
    self.listDataLog.clearAll();
    self.reflash(self.listDataLog);
    self.mediaMain.cellRemove('',True) 

SaveLog.py

import MediaItem;
class SaveLog():
  list = [];
  def addItem(self,it=MediaItem.MediaItem):
    if self.getItemByURL(it.url) == '' :
      it.index = len(self.list) + 1;
      self.list.append(it);
      return True;
    return False;
  def clearAll(self):
    self.list = [];
  def getItemByURL(self,url):
    for it in self.list:
      if it and it.url == url:
        return it;
    return '';
  def getItemByIndex(self,ind):
    return self.list[ind];
  def delItemByIndex(self,ind):
    it = self.getItemByIndex(ind);
    if it :
      url = it.url;
      self.list.remove(it);
      return url;
    return '';
  def reflashDataByIndex(self):
    i = 1;
    for it in self.list:
      if it:
        it.index = i;
        i = i+ 1;
  def havePreItem(self,ind):
    if ind-1>0:
      return True;
    return False;
  def haveNextItem(self,ind):
    if ind < len(self.list)-1:
      return True;
    return False;
  def getPreItem(self,ind):
    if ind>0:
      ind = ind -1;
      return self.list[ind];
    return '';
  def getNextItem(self,ind):
    if ind < len(self.list)-1:
      ind = ind + 1;
      return self.list[ind];
    return '';
  def getList(self):
    return self.list;
  def createLog(self):
    out = [];
    for it in self.list:
      if it:
        out.append(it.createLog())
    return out;
  def loadLog(self,s=''):
    ls = s.split("|");
    item = MediaItem.MediaItem();
    item.index = ls[0]
    item.fileName = ls[1]
    item.url = ls[2]
    item.length = ls[3];
    self.addItem(item); 

  def test(self):
    item = MediaItem.MediaItem();
    item.index = 0;
    item.fileName = '123'
    item.length = '123'
    item.url = '123'
    self.list.append(item)
    item2 = MediaItem.MediaItem();
    item2.index = 1;
    item2.fileName = '1234'
    item2.length = '1234'
    item2.url = '1234'
    self.list.append(item2)
    item3 = MediaItem.MediaItem();
    item3.index = 2;
    item3.fileName = '12345'
    item3.length = '12345'
    item3.url = '12345'
    self.list.append(item3)

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我们。

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