Python使用ffmpeg实现将WebM文件转换为MP4文件

pip install wxPython
pip install FFmpeg

import wx
import os
import subprocess
# ... 代码省略 ...
def main():
    app = wx.App()
    frame = FileConversionFrame()
    frame.Show()
    app.MainLoop()
if __name__ == "__main__":
    main()

import wx
import os
import subprocess
class FileConversionFrame(wx.Frame):
    def __init__(self):
        super().__init__(None, title="文件转换示例")
        panel = wx.Panel(self)
        # 创建选择文件按钮
        select_file_button = wx.Button(panel, label="选择WebM文件")
        select_file_button.Bind(wx.EVT_BUTTON, self.on_select_file)
        # 创建选择文件夹按钮
        select_folder_button = wx.Button(panel, label="选择输出文件夹")
        select_folder_button.Bind(wx.EVT_BUTTON, self.on_select_folder)
        # 创建文本控件显示选择的文件和文件夹路径
        self.selected_file_text = wx.TextCtrl(panel, style=wx.TE_READONLY)
        self.selected_folder_text = wx.TextCtrl(panel, style=wx.TE_READONLY)
        # 创建转换按钮
        convert_button = wx.Button(panel, label="转换")
        convert_button.Bind(wx.EVT_BUTTON, self.on_convert)
        # 创建布局
        vbox = wx.BoxSizer(wx.VERTICAL)
        vbox.Add(select_file_button, 0, wx.ALL, 10)
        vbox.Add(self.selected_file_text, 0, wx.EXPAND | wx.ALL, 10)
        vbox.Add(select_folder_button, 0, wx.ALL, 10)
        vbox.Add(self.selected_folder_text, 0, wx.EXPAND | wx.ALL, 10)
        vbox.Add(convert_button, 0, wx.ALIGN_CENTER | wx.ALL, 10)
        panel.SetSizer(vbox)
    def on_select_file(self, event):
        dlg = wx.FileDialog(self, "选择WebM文件", style=wx.FD_OPEN | wx.FD_FILE_MUST_EXIST, wildcard="WebM files (*.webm)|*.webm")
        if dlg.ShowModal() == wx.ID_OK:
            selected_file = dlg.GetPath()
            self.selected_file_text.SetValue(selected_file)
        dlg.Destroy()
    def on_select_folder(self, event):
        dlg = wx.DirDialog(self, "选择输出文件夹", style=wx.DD_DEFAULT_STYLE | wx.DD_DIR_MUST_EXIST)
        if dlg.ShowModal() == wx.ID_OK:
            selected_folder = dlg.GetPath()
            self.selected_folder_text.SetValue(selected_folder)
        dlg.Destroy()
    def on_convert(self, event):
        input_file = self.selected_file_text.GetValue()
        output_folder = self.selected_folder_text.GetValue()
        if not input_file:
            wx.MessageBox("请选择WebM文件", "错误", wx.OK | wx.ICON_ERROR)
            return
        if not output_folder:
            wx.MessageBox("请选择输出文件夹", "错误", wx.OK | wx.ICON_ERROR)
            return
        file_name = os.path.basename(input_file)
        file_name_without_ext = os.path.splitext(file_name)[0]
        output_file = os.path.join(output_folder, f"{file_name_without_ext}.mp4")
        command = f'ffmpeg -i "{input_file}" "{output_file}"'
        try:
            subprocess.check_output(command, shell=True)
            wx.MessageBox("转换成功！", "提示", wx.OK | wx.ICON_INFORMATION)
        except subprocess.CalledProcessError as e:
            wx.MessageBox(f"转换失败：{e}", "错误", wx.OK | wx.ICON_ERROR)
def main():
    app = wx.App()
    frame = FileConversionFrame()
    frame.Show()
    app.MainLoop()
if __name__ == "__main__":
    main()