Classes for a media player control.
wx.media.MediaCtrl is a class for displaying types of media, such as videos, audio files, natively through native codecs.
wx.media.MediaCtrl uses native backends to render media, for example on Windows there is a ActiveMovie/DirectShow backend, and on Macintosh there is a QuickTime backend.
The following example shows a simple implementation that utilizes wx.media.MediaCtrl:
import wx
import wx.media
import os
#----------------------------------------------------------------------
class StaticText(wx.StaticText):
"""
A StaticText that only updates the label if it has changed, to
help reduce potential flicker since these controls would be
updated very frequently otherwise.
"""
def SetLabel(self, label):
if label <> self.GetLabel():
wx.StaticText.SetLabel(self, label)
#----------------------------------------------------------------------
class TestPanel(wx.Panel):
def __init__(self, parent):
wx.Panel.__init__(self, parent, -1,
style=wx.TAB_TRAVERSAL|wx.CLIP_CHILDREN)
# Create some controls
try:
self.mc = wx.media.MediaCtrl(self, style=wx.SIMPLE_BORDER,
#szBackend=wx.media.MEDIABACKEND_DIRECTSHOW
#szBackend=wx.media.MEDIABACKEND_QUICKTIME
#szBackend=wx.media.MEDIABACKEND_WMP10
)
except NotImplementedError:
self.Destroy()
raise
self.Bind(wx.media.EVT_MEDIA_LOADED, self.OnMediaLoaded)
btn1 = wx.Button(self, -1, "Load File")
self.Bind(wx.EVT_BUTTON, self.OnLoadFile, btn1)
btn2 = wx.Button(self, -1, "Play")
self.Bind(wx.EVT_BUTTON, self.OnPlay, btn2)
self.playBtn = btn2
btn3 = wx.Button(self, -1, "Pause")
self.Bind(wx.EVT_BUTTON, self.OnPause, btn3)
btn4 = wx.Button(self, -1, "Stop")
self.Bind(wx.EVT_BUTTON, self.OnStop, btn4)
slider = wx.Slider(self, -1, 0, 0, 0)
self.slider = slider
slider.SetMinSize((150, -1))
self.Bind(wx.EVT_SLIDER, self.OnSeek, slider)
self.st_size = StaticText(self, -1, size=(100,-1))
self.st_len = StaticText(self, -1, size=(100,-1))
self.st_pos = StaticText(self, -1, size=(100,-1))
# setup the layout
sizer = wx.GridBagSizer(5,5)
sizer.Add(self.mc, (1,1), span=(5,1))#, flag=wx.EXPAND)
sizer.Add(btn1, (1,3))
sizer.Add(btn2, (2,3))
sizer.Add(btn3, (3,3))
sizer.Add(btn4, (4,3))
sizer.Add(slider, (6,1), flag=wx.EXPAND)
sizer.Add(self.st_size, (1, 5))
sizer.Add(self.st_len, (2, 5))
sizer.Add(self.st_pos, (3, 5))
self.SetSizer(sizer)
wx.CallAfter(self.DoLoadFile, os.path.abspath("data/testmovie.mpg"))
self.timer = wx.Timer(self)
self.Bind(wx.EVT_TIMER, self.OnTimer)
self.timer.Start(100)
def OnLoadFile(self, evt):
dlg = wx.FileDialog(self, message="Choose a media file",
defaultDir=os.getcwd(), defaultFile="",
style=wx.OPEN | wx.CHANGE_DIR )
if dlg.ShowModal() == wx.ID_OK:
path = dlg.GetPath()
self.DoLoadFile(path)
dlg.Destroy()
def DoLoadFile(self, path):
self.playBtn.Disable()
if not self.mc.Load(path):
wx.MessageBox("Unable to load %s: Unsupported format?" % path,
"ERROR",
wx.ICON_ERROR | wx.OK)
else:
self.mc.SetInitialSize()
self.GetSizer().Layout()
self.slider.SetRange(0, self.mc.Length())
def OnMediaLoaded(self, evt):
self.playBtn.Enable()
def OnPlay(self, evt):
if not self.mc.Play():
wx.MessageBox("Unable to Play media : Unsupported format?",
"ERROR",
wx.ICON_ERROR | wx.OK)
else:
self.mc.SetInitialSize()
self.GetSizer().Layout()
self.slider.SetRange(0, self.mc.Length())
def OnPause(self, evt):
self.mc.Pause()
def OnStop(self, evt):
self.mc.Stop()
def OnSeek(self, evt):
offset = self.slider.GetValue()
self.mc.Seek(offset)
def OnTimer(self, evt):
offset = self.mc.Tell()
self.slider.SetValue(offset)
self.st_size.SetLabel('size: %s' % self.mc.GetBestSize())
self.st_len.SetLabel('length: %d seconds' % (self.mc.Length()/1000))
self.st_pos.SetLabel('position: %d' % offset)
def ShutdownDemo(self):
self.timer.Stop()
del self.timer
app = wx.App(0)
frame = wx.Frame(None)
panel = TestPanel(frame)
frame.Show()
app.MainLoop()