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• Why is ffmpeg-python throwing a codec error here ?

  15 octobre 2019, par TwentyPenguins

  I’m trying out ffmpeg-python for the first time and I’m hitting what looks like a complex error surprisingly early on.

  Here’s my complete code as it stands :

  from tkinter import filedialog
  
  import ffmpeg
  
  
  
  sourceFile = filedialog.askopenfile()
  
  targetFile = filedialog.asksaveasfilename()
  
  
  
  stream = ffmpeg.input(sourceFile, ss=0, format='mov')
  
  stream = ffmpeg.output(stream, targetFile, format='mp4')
  
  ffmpeg.run(stream)

  In my head, this ought to be simple. The user browses to an existing MOV file (a standard h264 file which ’normal’ FFmpeg.exe can handle no problem on a Windows command line), then selects an output file for an MP4 to be saved, then FFmpeg is called and an MP4 file is converted from the MOV.

  However, regardless of what source file I choose, I am always hitting this error :

    File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\ffmpeg\_ffmpeg.py", line 85, in output
  
    File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\ffmpeg\_run.py", line 285, in run_async
  
      args, stdin=stdin_stream, stdout=stdout_stream, stderr=stderr_stream
  
    File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\subprocess.py", line 775, in __init__
  
      restore_signals, start_new_session)
  
    File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\subprocess.py", line 1119, in _execute_child
  
      args = list2cmdline(args)
  
    File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\subprocess.py", line 530, in list2cmdline
  
      needquote = (" " in arg) or ("\t" in arg) or not arg
  
    File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\encodings\cp1252.py", line 23, in decode
  
      return codecs.charmap_decode(input,self.errors,decoding_table)[0]
  
  UnicodeDecodeError: 'charmap' codec can't decode byte 0x90 in position 41: character maps to <undefined>
  
  </undefined>

  The position number changes depending on the file but the error is always ’charmap’ codec can’t decode byte 0x90 in position [x] : character maps to < undefined >

  Please can somebody point me to where I may be going wrong on this one ? I feel the answer is staring me in the face but I’m not seeing it.

• Cycle recording using vlc or ffmpeg

  9 août 2016, par kAldown

  I have Chinese action camera with only 10 minutes of cycle recording.

  But ac have wi-fi so I can catch video stream, and configure recording from pc while camera cycling only 10 mins.

  Need to record video on a same file for every 30 mins loop using vlc or ffmpeg.

  Or should I write a cron script to run every amount of time ?

• Any way to merge audio and video files in python ?

  23 août 2023, par TobyTheDev

  I have been working on a project and one of the feature is to merge an audio and a video file together. I have no idea on how to approach it.

  &#xA;

  I tried a python package called 'ffmpeg-python' which was recommended but couldn't figure it out how to use it. Also there is another 'ffmpeg' package but it looks suspicious and the repository is in Chinese or something.

  &#xA;

  Would like a solution.

  &#xA;