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• Very basic Moviepy script failing to run

  1er juillet 2018, par cem akbulut

  So, I have this very basic script that concatenates two videos, and adds a background sound.

  def intro():
  
  
  
      voiceoverIntro = AudioFileClip(audio[3]) #get path for intro.mp3
  
  
  
  
  
      introVideo = []
  
      temp = p1vid + p2vid + p3vid
  
  
  
      for x in temp: # add product videos to introVideo if they are longer than intro.mp3
  
          x = VideoFileClip(x)
  
  
  
          if x.duration >= voiceoverIntro.duration:
  
              introVideo.append(x)
  
  
  
  
  
      if len(introVideo) >= 1:
  
  
  
          #Get the video and turn off its volume
  
          introBg = introVideo[0].volumex(0).resize((1280,720))
  
          introBg = introBg.set_audio(voiceoverIntro).set_duration(voiceoverIntro.duration)
  
  
  
  
  
          introBg.reader.close()
  
          introBg.audio.reader.close_proc()
  
  
  
          return introBg

  And this function creates the second clip

  def productThreeOpener(productName):
  
      opener3 = VideoFileClip("media/number3.mp4").volumex(0).resize((1280,720))
  
  
  
  
  
  
  
      text = TextClip(productName,fontsize=60,color='white', font="Dekar")\
  
          .set_pos(("right", "center"))\
  
          .set_duration(3)\
  
          .set_start(2)\
  
          .crossfadein(1)\
  
          .crossfadeout(1)\
  
          .margin(right=200,opacity=0)
  
  
  
      opener3 = CompositeVideoClip([opener3, text])
  
  
  
      return opener3

  Now we just concatenate the two outputs

  final_clip = concatenate_videoclips([intro, productThreeOpener], method="compose")

  final_clip.resize((1280, 720)).write_videofile("output/intro.mp4", threads=8, fps=24, progress_bar=False)

  Running the code above returns this error ;

  Traceback (most recent call last):
  
  [MoviePy] >>>> Building video output/intro.mp4
  
    File "C:/Users/Akbulut/PycharmProjects/youtubeVideoEditor/vidEditor/sandbox.py", line 145, in <module>
  
  [MoviePy] Writing audio in introTEMP_MPY_wvf_snd.mp3
  
      final_clip.write_videofile("output/intro.mp4", threads=8, fps=24, progress_bar=False)
  
    File "", line 2, in write_videofile
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\decorators.py", line 54, in requires_duration
  
      return f(clip, *a, **k)
  
    File "", line 2, in write_videofile
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\decorators.py", line 137, in use_clip_fps_by_default
  
      return f(clip, *new_a, **new_kw)
  
    File "", line 2, in write_videofile
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\decorators.py", line 22, in convert_masks_to_RGB
  
      return f(clip, *a, **k)
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\video\VideoClip.py", line 318, in write_videofile
  
      progress_bar=progress_bar)
  
    File "", line 2, in write_audiofile
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\decorators.py", line 54, in requires_duration
  
      return f(clip, *a, **k)
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\audio\AudioClip.py", line 213, in write_audiofile
  
      progress_bar=progress_bar)
  
    File "", line 2, in ffmpeg_audiowrite
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\decorators.py", line 54, in requires_duration
  
      return f(clip, *a, **k)
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\audio\io\ffmpeg_audiowriter.py", line 165, in ffmpeg_audiowrite
  
      ffmpeg_params=ffmpeg_params)
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\audio\io\ffmpeg_audiowriter.py", line 71, in __init__
  
      self.proc = sp.Popen(cmd, **popen_params)
  
    File "C:\Program Files\Python36\lib\subprocess.py", line 594, in __init__
  
      _cleanup()
  
    File "C:\Program Files\Python36\lib\subprocess.py", line 205, in _cleanup
  
      res = inst._internal_poll(_deadstate=sys.maxsize)
  
    File "C:\Program Files\Python36\lib\subprocess.py", line 1025, in _internal_poll
  
      if _WaitForSingleObject(self._handle, 0) == _WAIT_OBJECT_0:
  
  OSError: [WinError 6] İşleyici geçersiz
  
  Exception ignored in: <bound method="method" of="of" object="object" at="at" 0x0000000a885019b0="0x0000000a885019b0">>
  
  Traceback (most recent call last):
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\audio\io\ffmpeg_audiowriter.py", line 134, in __del__
  
      self.close()
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\audio\io\ffmpeg_audiowriter.py", line 122, in close
  
      if self.proc:
  
  AttributeError: 'FFMPEG_AudioWriter' object has no attribute 'proc'
  
  
  
  Process finished with exit code 1
  
  </bound></module>

  I strictly followed MoviePY installation guide, installed it and all of its dependencies about 2 days ago. I work on a 64b Windows machine. Python version 3.6.1

  I’ve been stuck with this error for over a day now, and I don’t know what to try.. Any help/advice is highly appreciated.

  Thanks.

• Where I made a mistake - FFmpeg (Linux) basic problem

  23 mars 2019, par Fejor

  I just started learning FFmpeg. I have code (like below), but it’s doing nothing.

  fmpeg -i videoplayback.mp4 -filter_complex "[1:v]trim=start=0:end=1,setpts=PTS-STARTPTS,scale=480x360,setsar=sar=16/9[intro1];
  
  [1:v]trim=start=1:end=123.39,setpts=PTS-STARTPTS,scale=480x360,setsar=sar=16/9[main1];
  
  [1:v]trim=start=123.39:end=124.39,setpts=PTS-STARTPTS,scale=480x360,setsar=sar=16/9[end1];
  
  [intro1]format=pix_fmts=yuva420p, fade=t=in:st=0:d=1:alpha=1[intro1];
  
  [end1]format=pix_fmts=yuva420p, fade=t=in:st=0:d=1:alpha=1[end1];
  
  [intro1][main1][end1][output];
  
  [a:1][audio]; -vcodec libx264 -map "[output]" -map"[audio]" "output.mp4"

• How to concatenate two MP4 files, which require http basic Authorization : Bearer , using ffmpeg ?

  8 juillet 2023, par Jeff Strongman

  Hello dear ffmpeg experts ! 🧠 🎯

  


  I ran the following command, which worked perfectly :

  


  ffmpeg -protocol_whitelist https,concat,tls,tcp -i "concat :https://dash.akamaized.net/akamai/bbb_30fps/bbb_30fps_1280x720_4000k/bbb_30fps_1280x720_4000k_0.m4v|https://dash.akamaized.net/akamai/bbb_30fps/bbb_30fps_1280x720_4000k/bbb_30fps_1280x720_4000k_1.m4v|https://dash.akamaized.net/akamai/bbb_30fps/bbb_30fps_1280x720_4000k/bbb_30fps_1280x720_4000k_2.m4v" -c:v copy -vframes 180 -y Movie_of_6_seconds.mp4

  


  I followed the recommended solution of the following post :
How to concatenate two MP4 files using FFmpeg ?

  


  You can execute the command on your local computer and see that it should run just fine...

  


  I used 3. concat protocol, which does indeed concat init + progressive segments

  


  However... when every segment on a server I refer to, is password protected, it fails with 401 Unauthorized, even though I added the following line :
-headers "Authorization : Bearer bas64user:password" , before specifying the -i "concat :...".

  


  It seems to me... that the headers don't pass to the concat command inside of the input of ffmpeg... and it simply ignores them. When I used the same -headers command, on a single file, without concat, it passed the authorization successfully

  


  Notes :

  


  

  • Even though every segment has a length of 120 frames (So in maximum, I could have generated 2*120 = 240 frames... I wanted a movie of 6 seconds and not 8... And by this way, to test that ffmpeg is smart enough to stop processing the whole input). To do that, I used -vframes 180, where 180 / 30 (FPS) = 6 seconds

  


  • I used -c:v copy, to get without re-encoding, only the video part (No audio !)

  


  • I used -y to override existing file...

  


  • 0.m4v, is the init file ! it is a small file, that has metadata of the original video which was produced with mpeg-dash

  


  • 1.m4v and 2.m4v, are the progressive segments

  


  


  Is there a way, to pass the http basic headers (Authorization : Bearer) to all of the chained files ?

  


  Like :

  


  

  • Via a json content type on the ffmpeg request

  


  • Or user:password@video_segment (Although... it seems to me it's not a header ?)

  


  • Somehow specify header inside the concat command ?

  


  


  I don't want to first download all files and then get rid of the password protected... as it both takes ridiculous time & other resources... and I would like to record from a segment that is "endless", meaning a camera that keeps streaming data.

  


  Thanks in advance 🙏🏻,

  


  FFmpeg noobie 🙈