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• FFMPEG split video is not working properly

  12 juillet 2018, par user6250770

  I am trying to split video then into frames. I am passing starting time and ending time dynamically.

  for ex :

  ffmpeg -i /Users/mypc/Documents/Avatar/input.mp4 -ss 00:00:39.799 -t 00:00:42.039  /Users/mypc/Downloads/testing/output.mp4

  It should cut the video from 39th second to 42 second. Approximately 3 seconds. But, it’s splitting more than 3 seconds. I am stuck why it’s behaving like that.

  Am i missing something in my command or anything ?

  Please suggest

  Screen shot of my terminal attached :

  

• avformat/hls : Split allowed_segment_extensions off allowed_extensions

  29 avril, par Michael Niedermayer

  avformat/hls : Split allowed_segment_extensions off allowed_extensions
  This allows the user to set only the one that is needed to ALL or a
  
  specific "wrong" extension like html
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/hls.c

• Can you split a file using ffmpeg directly from a db ?

  31 mars 2014, par Jeff

  I am splitting a file using ffmpeg and python. I am able split a file if I input a file path, but if I send in the file itself from my mongodb, it errors out. Is there a way to get ffmpeg to run using the file instead of the path to the file ?

  python code :

  args = [ffmpeg_binary,
  
                           "-v", "quiet",
  
                           "-y", "-i", video_file, "-vcodec", "copy", "-acodec", "copy",
  
                   "-ss", "00:00:00", "-t", "00:00:10", "-sn",
  
                   output_file_name ]
  
  
  
  pipe = sp.Popen(args)

  if video_file is a gridfs.grid_file.GridOut object or a (gridfs.grid_file.GridOut object).read(), I get :

  Traceback (most recent call last):
  
    File "C:/dev/youniversity/test.py", line 21, in <module>
  
      split_vid_from_file(vid_file)
  
    File "C:\dev\youniversity\src\lib\ffmpeg_lib.py", line 107, in split_vid_from_file
  
      pipe = sp.Popen(args)
  
    File "C:\Python27\lib\subprocess.py", line 709, in __init__
  
      errread, errwrite)
  
    File "C:\Python27\lib\subprocess.py", line 957, in _execute_child
  
      startupinfo)
  
  TypeError: must be string without null bytes or None, not str
  
  </module>

  How do I split the video directly from the DB ?

  EDIT : I found that you can do this :

  ... "-y", "-", ... 
  
  
  
  pipe = sp.Popen(args, stdin=sp.PIPE)

  but I don't want the user to type input, I want to pipe in the variable.