python利用ffmpeg进行录制屏幕的方法

import subprocess,sys,os
import re
class CutSplicingVdeio(object):
  def __init__(self):
    pass
  #dercription CutSplicingVdeio this class function
  def instructions(self):
    dercription="vdeio and image transform,vdeio other opreation"
    return dercription
  def transcribeScreen(self,filePath):
    filePath=filePath.decode('utf-8')
    cmd=ffmpegPath + " -f gdigrab -framerate 60 -offset_x 0 -offset_y 0 -video_size 1366x768 -i desktop " + filePath
    cmd=cmd.encode(sys.getfilesystemencoding())
    if "?" in cmd:
      cmd=cmd.replace("?","")
    print cmd
    subprocess.call(cmd , shell=True)

vp=CutSplicingVdeio()       vp.transcribeScreen(r"C:\Users\Administrator\Desktop\transcribe.avi")
#according to give a video filepath (transcribe Screen)