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• Can i use FFMPEG in a python script to combine mp4 files from a list into one file

  1er novembre 2020, par goldenwallnut

  i was using moviepy but for some reason i could not get it to work ( kept telling me that i did not set up the config correctly). i was wondering if i could combine all .mp4 files in a list but still use python. this is what i got so far. is there any other ways to combine multible video files and do other things like add text to the video ?

  


     import subprocess
   import os
lists = []
lists.append('E:\1.mp4')
lists.append('E:\2.mp4')
subprocess.call('ffmpeg.exe -f concat -i '+str(lists)+' -c copy outcome.mp4')


  


• Python code for making multiple splits of a video on silence [closed]

  14 janvier 2021, par Shikhar Jaiswal

  I want to get a code to make one video into many splits on the silence. A code which can make many splits of an video by detecting its silence. I want specifically python code.
Any idea or code would work.

  


• Screen recorder in Ubuntu using python

  3 août 2013, par mridul

  I am a hobby programmer and trying to make screen-recorder in Ubuntu using python.
  Using this code able to take screenshot.

  import wx
  
  app = wx.App(False)
  
  s = wx.ScreenDC()
  
  w, h = s.Size.Get()
  
  b = wx.EmptyBitmap(w, h)
  
  m = wx.MemoryDCFromDC(s)
  
  m.SelectObject(b)
  
  m.Blit(0, 0, w, h, s, 0, 0)
  
  m.SelectObject(wx.NullBitmap)
  
  b.SaveFile("screenshot.png", wx.BITMAP_TYPE_PNG)

  And using loop I take more pictures and create video using these screen shots.My code is given bellow,

  import wx,os
  
  app=wx.App(False)
  
  s = wx.ScreenDC()
  
  w, h = s.Size.Get()
  
  b = wx.EmptyBitmap(w, h)
  
  m = wx.MemoryDCFromDC(s)
  
  i=0
  
  while i<50:
  
     m.SelectObject(b)
  
     m.Blit(0, 0, w, h, s, 0, 0)
  
     m.SelectObject(wx.NullBitmap)
  
     b.SaveFile('{0:05d}.png'.format(i), wx.BITMAP_TYPE_PNG)
  
     i+=1
  
  os.system('ffmpeg -f image2 -r 8 -i %05d.png -vcodec mpeg4 -y movie1.mp4')
  
  i=0  
  
  while i<50:
  
     os.remove('{0:05d}.png'.format(i))
  
     i += 1   `

  In above code I take 50 pictures and store as 00000.png to 00049.png and make video using ffmpeg.
  After creating video I delete all pictures.

  Current Problems :

  • Very small delay between screen shoots. If try to record videos using this code out put is not perfect.
  • For recording long time it is not efficient. It take lot of hard drive memory to store screen shoots. And use more CPU .

  What I do for get code more efficient ? Using pure python how to create video from pictures ? Is there any alternative methods to record screen ?
  I like to improve my code.