如何在 wx.media 中播放 mp4 文件

Question

我想做一个 mp4 播放器，我正在尝试让模块播放视频，但在给它的那一刻没有发生错误

def prueba(self,z):
    self.open = wx.media.MediaCtrl(panel)
    self.open.Load("video.mp4")
    self.open.GetBestSize()
    self.open.Play()
panel = wx.Panel(frame,id=-1,size=(500,500))
self.Bind(wx.media.EVT_MEDIA_LOADED,self.prueba)

编辑：

当我尝试以下代码时：

import wx
import wx.media

class TestPanel(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None)
        self.testMedia = wx.media.MediaCtrl(self, style=wx.SIMPLE_BORDER,)
        self.media = '/home/rolf/BBB.ogv'
        self.testMedia.Bind(wx.media.EVT_MEDIA_LOADED, self.play)
        self.testMedia.Bind(wx.media.EVT_MEDIA_FINISHED, self.quit)
        if self.testMedia.Load(self.media):
            pass
        else:
            print("Media not found")
            self.quit(None)

    def play(self, event):
        self.testMedia.Play()

    def quit(self, event):
        self.Destroy()

if __name__ == '__main__':
    app = wx.App()
    Frame = TestPanel()
    Frame.Show()
    app.MainLoop()

使用 mp4 文件...

ERROR

Answer 1

您需要 load 媒体 before event EVT_MEDIA_LOADED 才会触发。
试试这个作为骨架程序：

import wx
import wx.media

class TestPanel(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None)
        self.testMedia = wx.media.MediaCtrl(self, style=wx.SIMPLE_BORDER,)
        self.media = '/home/rolf/BBB.ogv'
        self.testMedia.Bind(wx.media.EVT_MEDIA_LOADED, self.play)
        self.testMedia.Bind(wx.media.EVT_MEDIA_FINISHED, self.quit)
        if self.testMedia.Load(self.media):
            pass
        else:
            print("Media not found")
            self.quit(None)

    def play(self, event):
        self.testMedia.Play()

    def quit(self, event):
        self.Destroy()

if __name__ == '__main__':
    app = wx.App()
    Frame = TestPanel()
    Frame.Show()
    app.MainLoop()

根据评论编辑
上面的代码适用于 Linux。

如果您使用不同的 OS 或者如果您使用 Linux 但没有安装 Gstreamer，您可能会遇到问题。
有一个选项可以选择您的媒体后端：

Generally, you should almost certainly leave this part up to wx.media.MediaCtrl - but if you need a certain backend for a particular reason, such as QuickTime for playing .mov files, all you need to do to choose a specific backend is to pass the name of the backend class to wx.media.MediaCtrl.Create . The following are valid backend identifiers:

MEDIABACKEND_DIRECTSHOW: Use ActiveMovie/DirectShow. Uses the native ActiveMovie (I.E. DirectShow) control. Default backend on Windows and supported by nearly all Windows versions, even some Windows CE versions. May display a windows media player logo while inactive. MEDIABACKEND_QUICKTIME: Use QuickTime. Mac Only. WARNING: May not working correctly embedded in a wx.Notebook. MEDIABACKEND_GSTREAMER, Use GStreamer. Unix Only. Requires GStreamer 0.8 along with at the very least the xvimagesink, xoverlay, and gst-play modules of gstreamer to function. You need the correct modules to play the relevant files, for example the mad module to play mp3s, etc. MEDIABACKEND_WMP10, Uses Windows Media Player 10 (Windows only) - works on mobile machines with Windows Media Player 10 and desktop machines with either Windows Media Player 9 or 10.

这将导致您的媒体定义如下所示：

self.testMedia = wx.media.MediaCtrl(self, style=wx.SIMPLE_BORDER,szBackend=wx.media.MEDIABACKEND_WMP10)

例如。

如何在 wx.media 中播放 mp4 文件

How to play a mp4 file in wx.media

python

wxpython