Usando ffmpeg con Python 2.7

wxpython

Question

He intentado instalar pyffmpeg en Python 2.7 sin éxito. Encontré un paquete para Python 2.6, pero no puedo hacerlo funcionar. Entonces, he estado reflexionando con 2.7. He visto publicaciones anteriores de otros en este sitio, pero no han ayudado. Alguien tiene experiencia con esto. En última instancia, quiero desarrollar una aplicación wxPython que convierta formatos de video. Gracias

Código que finalmente escribí que funcionó para mí (muy rudimentario, pero funciona ...):

import wx
import os
import sys
import time
import datetime
from wx.lib.delayedresult import startWorker



class dConvert(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, -1, ''d-Converter'', size=(500, 310))
        panel = wx.Panel(self, wx.ID_ANY)#Creates a panel over the widget
        toolbar = self.CreateToolBar()
        toolbar.Realize()

        #Setup Menu
        #Setting up Menu
        menuFile = wx.Menu()
        menuFile.Append(1, "&About...")
        menuFile.AppendSeparator()
        menuFile.Append(2, "E&xit")
        menuBar = wx.MenuBar()
        menuBar.Append(menuFile, "&File")

        panel.SetBackgroundColour(''WHITE'')

        menu2 = wx.Menu()
        menu2.Append(5, "&.mpg to dvd", ".mpg to dvd")
        menu2.AppendSeparator()
        menu2.Append(wx.NewId(), "&Options...", "Options...")
        menuBar.Append(menu2, "&DVD")


        menu3 = wx.Menu()
        menu3.Append(7, "&Audio/Video Trim")
        #menu3.AppendSeparator()
        menuBar.Append(menu3, "Media")

        self.SetMenuBar(menuBar)
        self.Bind(wx.EVT_MENU, self.OnAbout, id=1)
        self.Bind(wx.EVT_MENU, self.OnQuit, id=2)
        self.Bind(wx.EVT_MENU, self.OnDVD, id=5)
        self.Bind(wx.EVT_MENU, self.OnMedia, id=7)

        #Add icon to frame
        iconFile = "dconverter_image.jpg"
        icon1 = wx.Icon(iconFile, wx.BITMAP_TYPE_JPEG)
        self.SetIcon(icon1)


        self.statusbar = self.CreateStatusBar()
        self.statusbar.SetStatusText("Convert Audio & Video")
        self.statusbar.SetFieldsCount(3)
        self.statusbar.SetStatusWidths([200, -2, -2])



        #Panel Text
        font = wx.Font(10, wx.DEFAULT, wx.NORMAL, wx.BOLD)
        font2 = wx.Font(7, wx.DEFAULT, wx.NORMAL, wx.BOLD)

        directory = wx.StaticText(panel, -1, ''Path: c://ffmpeg//bin'', (300, 13))
        directory.SetFont(font2)

        convertfile = wx.StaticText(panel, -1, ''File:'', (270, 53))
        convertfile.SetFont(font)

        convertfile2 = wx.StaticText(panel, -1, ''Format:'', (245, 83))
        convertfile2.SetFont(font)

        convertfile3 = wx.StaticText(panel, -1, ''Quality:'', (244, 113))
        convertfile3.SetFont(font)

        convertfile4 = wx.StaticText(panel, -1, ''Presets:'', (239, 143))
        convertfile4.SetFont(font)

        image_file = ''cd_rom.gif''
        bmp1 = wx.Image(image_file, wx.BITMAP_TYPE_ANY).ConvertToBitmap()
        panel.bitmap1 = wx.StaticBitmap(panel, -1, bmp1, (50, 30))



        self.formats1 = []


        #Select Media path    
        os.chdir("c://ffmpeg//bin")
        wrkdir = os.getcwd()
        filelist = os.listdir(wrkdir)
        #self.formats1 = []

        for filename in filelist:
            (head, filename) = os.path.split(filename)
            if filename.endswith(".avi") or filename.endswith(".mp4") or filename.endswith(".mpg") or filename.endswith(".m4A") or filename.endswith(".MTS") or filename.endswith(".flv") or filename.endswith(".mov") or filename.endswith(".mpeg4") or filename.endswith(".mpeg") or filename.endswith(".mpg2") or filename.endswith(".mkv") or filename.endswith(".m4v") or filename.endswith(".wav") or filename.endswith(".mp3"):
            self.formats1.append(filename)


        self.format_combo1=wx.ComboBox(panel, size=(140, -1),value=''Select Media'', choices=self.formats1, style=wx.CB_DROPDOWN, pos=(300,50)) 
        self.Bind(wx.EVT_COMBOBOX, self.fileFormats, self.format_combo1)


        #Media Formats
        self.formats2 = [''Select Format'', ''.avi'',''.mpeg'',''.mp4'',''.flv'',''.mov'',''.m4a'',''.m4v'',''.mkv'',''.mpeg4'',''.mpg'',''.mpg2'',''.mp3'',''.ogg'',''.wav'',''.wma'']

        self.format_combo2=wx.ComboBox(panel, size=(100, -1),value=''Select Format'', choices=self.formats2, style=wx.CB_SORT, pos=(300,81))

        #Media Quality
        self.formats3 = [''-sameq'',''-qmax'']
        self.format_combo3=wx.ComboBox(panel, size=(100, -1),value=''Select Quality'', choices=self.formats3, style=wx.CB_DROPDOWN, pos=(300,111))



        #-qmax settings
        self.formats4 = [''1'',''2'',''3'',''4'',''5'',''6'',''7'',''8'']
        self.format_combo4=wx.ComboBox(panel, size=(30, -1),value=''0'', choices=self.formats4, style=wx.CB_DROPDOWN, pos=(405,111))
        self.format_combo4.Disable()


        #Media Quality
        self.formats5 = [''Select Preset'',''video to mp3'']
        self.format_combo5=wx.ComboBox(panel, size=(100, -1),value=''Select Preset'', choices=self.formats5, style=wx.CB_DROPDOWN, pos=(300,141))

        #Bit rate
        self.formats6 = [''128000'', ''160000'', ''180000'', ''192000'']
        self.format_combo6=wx.ComboBox(panel, size=(47, -1),value=''k/bs'', choices=self.formats6, style=wx.CB_DROPDOWN, pos=(405,141))
        self.format_combo6.Disable()






        #Convert Button
        self.button = wx.Button(panel, label="Convert", pos=(300, 171), size=(80, 20))
        self.Bind(wx.EVT_BUTTON, self.convertButton, self.button)

        #Abort Button
        self.button2 = wx.Button(panel, label="Abort", pos=(385, 171), size=(80, 20))
        self.Bind(wx.EVT_BUTTON, self.OnAbortButton, self.button2)
        self.button2.Disable()

        #Refresh Button
        self.button3 = wx.Button(panel, label="Refresh", pos=(215, 171), size=(80, 20))
        self.Bind(wx.EVT_BUTTON, self.file_refresh, self.button3)


        #ComboBox Event
        self.Bind(wx.EVT_COMBOBOX, self.OncomboBox, self.format_combo3)
        self.Bind(wx.EVT_COMBOBOX, self.OncomboBox2, self.format_combo5)
        self.Bind(wx.EVT_COMBOBOX, self.OncomboBox3, self.format_combo2)



    def file_refresh(self, e):
        self.format_combo1.Clear()
        os.chdir("c://ffmpeg//bin")
        wrkdir = os.getcwd()
        filelist = os.listdir(wrkdir)
        for m_files in filelist:
            if m_files.endswith(".avi") or m_files.endswith(".mp4") or m_files.endswith(".mpg") or m_files.endswith(".m4A") or m_files.endswith(".MTS") or m_files.endswith(".flv") or m_files.endswith(".mov") or m_files.endswith(".mpeg4") or m_files.endswith(".mpeg") or m_files.endswith(".mpg2") or m_files.endswith(".mkv") or m_files.endswith(".m4v") or m_files.endswith(".wav") or m_files.endswith(".mp3"):
            self.format_combo1.Append(m_files)



    def file_rename(self, f_name):
        ts = time.time()
        #Capture readable timestamp
        st = datetime.datetime.fromtimestamp(ts).strftime(''%Y-%m-%d_%H-%M-%S'')
        os.chdir("c://ffmpeg//bin")
        wrkdir = os.getcwd()

        #get file extenstion from original file
        #fileName, fileExtension = os.path.splitext(wrkdir + ''//' + f_name)

        #add file extension to timestamp
        new_file = st 

        return new_file



    def fileFormats(self, e):
        myFormats = {''audio'': (''Select Format'', ''.m4a'', ''.mp3'', ''.ogg'', ''.wav'', ''.wma''), ''video'': (''Select Format'', ''.avi'', ''.flv'', ''.mkv'', ''.m4v'', ''.mov'', ''.mpg'', ''.mpg2'', ''.mpeg4'', ''.mp4'', ''.mpeg'')}
        bad_file = [''Media not supported'']
        myFile = self.format_combo1.GetValue()
        f_exten = (x for x in myFormats[''audio''] + myFormats[''video''] if myFile.endswith(x))
    extension = f_exten.next()

        if extension in myFormats[''audio'']:
            self.format_combo2.SetItems(myFormats[''audio''])

        elif extension in myFormats[''video'']:
            self.format_combo2.SetItems(myFormats[''video''])
        else:
            self.format_combo2.SetItems(bad_file)


    def OnQuit(self, event):
        self.Close(True)

    def OnAbout(self, event):
        wx.MessageBox("d-Converter 1.0/n/n Developer: D.Monroe/n/nCopyright 2012",
                "About d-Converter", wx.OK | wx.ICON_INFORMATION, self)


    def OncomboBox(self, e):
        quality=self.format_combo3.GetValue()
        if quality == ''-qmax'':
            self.format_combo4.Enable()

        else:
            self.format_combo4.Disable()



    def OncomboBox2(self, e):
        quality=self.format_combo5.GetValue()
        if quality != ''Select Preset'':
            self.format_combo1.Enable()
            self.format_combo2.Disable()
            self.format_combo3.Disable()
            self.format_combo4.Disable()
            self.format_combo6.Enable()

        elif quality == ''Select Preset'':
            self.format_combo1.Enable()
            self.format_combo2.Enable()
            self.format_combo3.Enable()
            self.format_combo4.Disable()
            self.format_combo5.Enable()
            self.format_combo6.Disable()

        elif quality == ''video to mp3'':
            self.format_combo6.Enable()
            self.format_combo2.Disable()
            self.format_combo3.Disable()
            self.format_combo4.Disable()

    def OncomboBox3(self, e):
        v_format=self.format_combo2.GetValue()
        if v_format != ''Select Format'':
            self.format_combo1.Enable()
            self.format_combo2.Enable()
            self.format_combo3.Enable()
            self.format_combo4.Enable()
            self.format_combo5.Disable()
            self.format_combo6.Disable()

        elif v_format == ''Select Format'':
            self.format_combo1.Enable()
            self.format_combo2.Enable()
            self.format_combo3.Enable()
            self.format_combo4.Disable()
            self.format_combo5.Enable()
            self.format_combo6.Disable()





    def OnMedia(self, e):
        pass

    def OnDVD(self, e):
        """ Select a directory to search"""
        os.chdir("c://ffmpeg//bin")
        wrkdir = os.getcwd()
        filelist = os.listdir(wrkdir)
        progdir = ''c://ffmpeg//bin//ffmpeg.exe'' + '' -i ''
        prog_dir = '' -target ''
        progdir3 = ''-dvd -ac 2 ''
        vid_format = ''.mpg''


        sampleList = []
        for filename in filelist:
           (head, filename) = os.path.split(filename)
           if filename.endswith(".avi") or filename.endswith(".flv") or filename.endswith(".mpeg") or filename.endswith(".mp4") or filename.endswith(".mov") or filename.endswith(".mpg2"):
            sampleList.append(filename)

        dlg = wx.SingleChoiceDialog(
               self, "Files in c://ffmpeg//bin", ''Select video to convert'',
           sampleList,
           wx.CHOICEDLG_STYLE
           )

        if dlg.ShowModal() == wx.ID_OK:
            cur_item = dlg.GetStringSelection()
            s_string = cur_item
            #f_string = self.file_rename(s_string)
            f_string = s_string.replace('' '', '''')





        dlg.Destroy()


        dlg2 = wx.SingleChoiceDialog(
               self, "Files in c://ffmpeg//bin", ''Select video standard '',
           ["pal", "ntsc"],
           wx.CHOICEDLG_STYLE
           )

        if dlg2.ShowModal() == wx.ID_OK:
            cur_item2 = dlg2.GetStringSelection()
            s_string2 = cur_item2
            self.button.Disable()
            self.button2.Enable()
            self.format_combo1.Disable()
            self.format_combo2.Disable()
            self.format_combo3.Disable()
            self.format_combo4.Disable()
            self.format_combo5.Disable()
            self.format_combo6.Disable()
            startWorker(self.LongTaskDone, self.LongTask4, wargs=(progdir, wrkdir, prog_dir, progdir3, f_string, s_string2, vid_format))


        dlg2.Destroy()






    def convertButton(self, e):
        unit1 = self.format_combo1.GetValue()
        unit2 = self.format_combo2.GetValue()
        unit3 = self.format_combo3.GetValue()
        unit4 = None
        unit5 = self.format_combo5.GetValue()
        bitRate = self.format_combo6.GetValue()
        unit6 = bitRate
        if unit3 == ''-qmax'':
            unit4 = self.format_combo4.GetValue()
        else:
            pass

        os.chdir("c://ffmpeg//bin")
        wrkdir = os.getcwd()

        newfile = unit1



        #stripped = os.path.splitext(newfile)[0] # Updated 9/26/2013 to strip extension.
        #stripped = newfile.strip(''mpeg3kaviovfl4w2c.'') #Strips the extension from the original file name
        stripped = self.file_rename(newfile)

        #os.rename(newfile, newfile_f)



        progname=''c://ffmpeg//bin//ffmpeg.exe'' + '' -i ''

        preset1_a=''-vn -ar 44100 -ac 2 -ab''
        preset1_b=''-f mp3 ''
        preset_mp3=''.mp3''







         if (unit1 == ''Select Media'' or unit1 == ''''):
                    amsg = wx.MessageDialog(None, ''You must select a media file!'', ''Media Converter'', wx.ICON_INFORMATION)
                    amsg.ShowModal()
                    amsg.Destroy()



         elif (unit1 != ''Select Media'' or unit1 != '''') and (unit5 == ''Select Preset''):

             if (unit2 == ''Select Format'' or unit2 == ''''):
                amsg = wx.MessageDialog(None, ''You must select a format'', ''Media Converter'', wx.ICON_INFORMATION)
                amsg.ShowModal()
                amsg.Destroy()

                self.format_combo3.Enable()
                self.format_combo4.Enable()
                self.format_combo5.Enable()

            else:
                pass

            if (unit3 == ''Select Quality'' or unit3 == ''''):
                amsg = wx.MessageDialog(None, ''You must select quality'', ''Media Converter'', wx.ICON_INFORMATION)
                amsg.ShowModal()
                amsg.Destroy()


            elif (unit3 == ''-qmax''):
                if (unit4 == ''0'' or unit4 == ''''):
                    amsg = wx.MessageDialog(None, ''You must select number between 1-8.'', ''Media Converter'', wx.ICON_INFORMATION)
                    amsg.ShowModal()
                    amsg.Destroy()
                else:
                    self.button.Disable()
                    self.button2.Enable()
                    pass

            else:
                self.button.Disable()
                self.button2.Enable()
                self.format_combo1.Disable()
                self.format_combo2.Disable()
                self.format_combo3.Disable()
                self.format_combo4.Disable()
                startWorker(self.LongTaskDone, self.LongTask, wargs=(progname,wrkdir,unit1,unit3,stripped,unit2))





        elif (unit1 != ''Select Media'' or unit1 != '''') and (unit5 == ''video to mp3''):
            if unit6 == ''k/bs'' or unit6 == None:
                amsg = wx.MessageDialog(None, ''You must select a bit rate.'', ''Media Converter'', wx.ICON_INFORMATION)
                amsg.ShowModal()
                amsg.Destroy()

            else:
                self.button.Disable()
                self.button2.Enable()
                self.format_combo1.Disable()
                self.format_combo2.Disable()
                self.format_combo3.Disable()
                self.format_combo4.Disable()
                self.format_combo5.Disable()
                self.format_combo6.Disable()
                startWorker(self.LongTaskDone, self.LongTask3, wargs=(progname, wrkdir, unit1, preset1_a, unit6, preset1_b, stripped, preset_mp3))











    def LongTask(self, progname, wrkdir, unit1, unit3, stripped, unit2):
        convert_file1 = progname + wrkdir + ''//' + unit1 + '' '' + unit3 + '' '' + stripped + unit2
        self.statusbar.SetStatusText("Converting: " + unit1 + "...")
        os.system(convert_file1)
        print convert_file1





    def LongTask2(self, progname, wrkdir, unit1, unit3, unit4, stripped, unit2):
        convert_file2 = progname + wrkdir + ''//' + unit1 + '' '' + unit3 + '' '' + unit4 + '' '' + stripped + unit2
        self.statusbar.SetStatusText("Converting: " + unit1 + "...")
        os.system(convert_file2)


    def LongTask3(self, progname, wrkdir, unit1, preset1_a, unit6, preset1_b, stripped, preset_mp3):
        convert_file3 = progname + wrkdir + ''//' + unit1 + '' '' + preset1_a + '' '' + unit6 + '' '' + preset1_b + stripped + preset_mp3
        self.statusbar.SetStatusText("Converting: " + unit1 + "...")
        os.system(convert_file3)

    def LongTask4(self, progdir, wrkdir, prog_dir, progdir3, f_string, s_string2, vid_format):
        #convert_file4 = progdir + wrkdir + ''//' + s_string + prog_dir + s_string2 + progdir3 + s_string.strip(''mpegaviw24ofl.'') + vid_format
        convert_file4 = progdir + f_string + prog_dir + s_string2 + progdir3 + f_string.strip(''mpegaviw24ofl.'') + vid_format
        self.statusbar.SetStatusText("Converting: " + f_string + "...")
        os.system(convert_file4)
        print convert_file4



    def LongTaskDone(self, result):
        r = result.get()
        if r:
            amsg = wx.MessageDialog(None, ''Aborted!'', ''Media Converter'', wx.ICON_INFORMATION)
            self.statusbar.SetStatusText("Convert Aborted ...")
            amsg.ShowModal()
            amsg.Destroy()
            self.LongTask.terminate()
        else:
            self.statusbar.SetStatusText("Done ...")
            emsg = wx.MessageDialog(None, ''Finished Converting!'', ''Media Converter'', wx.ICON_INFORMATION)
            emsg.ShowModal()
            emsg.Destroy()
            self.format_combo1.Enable()
            self.format_combo2.Enable()
            self.format_combo3.Enable()
            self.format_combo5.Enable()
            self.format_combo4.Disable()
            self.format_combo6.Disable()
            self.button.Enable()
            self.button2.Disable()
            self.shouldAbort = False
        """self.progress_bar.SetValue(0)
        self.progress_bar.Hide()"""



    def OnAbortButton(self, e):
        endprogram = ''c://Windows//System32//taskkill /IM cmd.exe''
        os.system(endprogram)
        self.format_combo1.Enable()
        self.format_combo2.Enable()
        self.format_combo3.Enable()
        self.format_combo5.Enable()
        self.button.Enable()




if __name__ == ''__main__'':
    app = wx.PySimpleApp()
    frame = dConvert()
    frame.SetSizeHints(500,310,500,310)
    frame.Show()
    app.MainLoop()

Answer 1

Como esto no tiene una respuesta adecuada, me gustaría formar uno. Desafortunadamente, el envoltorio de pyffmpeg no pudo realizar la codificación de video. Entonces, como solución, sugiero algunas envolturas de python alternativas que sean capaces de codificar los videos.

• Convertidor de video Python
• FFmpegWrapper
• FFVideo

Además de esto, puede utilizar la funcionalidad completa de FFmpeg utilizando el módulo de subprocess Python para ejecutar comandos completos de FFmpeg. También con eso puedes crear tu propio contenedor si lo necesitas. Aquí Zulko describe una buena forma de usar el subprocess con FFmpeg. Algunas veces obtendrá algunos eventos confusos como este al usar un subprocess . ¡Pero siempre hay una solución!

Espero que esto ayude a alguien con el mismo problema al usar pyffmpeg para codificar videos.