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• Generate script from Handbrake preset

  11 avril 2018, par cclloyd

  Is it possible to generate a script/command to run from a Handbrake preset or from the queue on OS X ?

  Like take the queue and generate a command I can run in terminal instead of through the GUI ? (Either with ffmpeg or with HandBrakeCLI)

• I want to generate frames from a CCTV video using FFMPEG and save the frames as the time that they represent

  6 décembre 2014, par Jason Harris

  I am using mac os x terminal.

  So far I have mananaged the following code :

  ffmpeg -i cctvfootage.flv -f image2 -vf fps=fps=1 frames/frame_04d.png    

  The above code creates a frame for every second of the video, but names each frame as frame_0001.png, frame_0002.png, and so on. Although this is helpful, it is not the correct naming structure that I want.

  The date and time that the video footage starts from is 20th November 2014 at 13:46:12.

  The output name I want will be something like frames_20112014_134612.png (frames_DDMMYYYY_HHMMSS) for the first, frames_20112014_134613.png for the second, ect.

  This will then identify each frame as the day and time that the image is taken from.

• 'ffmpy' cannot find 'ffmpeg' when running in PyCharm on Mac using conda env

  5 janvier 2020, par user12448123

  When I ran the following piece of code in PyCharm on MacOS Catalina within conda environment :

  import ffmpy
  
  
  
  ff = ffmpy.FFmpeg(
  
       inputs={'download/v_5c80f6ac3e28a_7BumyNgu/video.m3u8': ['-protocol_whitelist', 'crypto,file,http,https,tcp,tls']},
  
       outputs={'download/ffmpy_test.mp4': None}
  
  )
  
  print(ff.cmd)
  
  ff.run()

  I got this error :

  Traceback (most recent call last):
  
    File "/Users/myname/.conda/envs/xiaoetong/lib/python3.7/site-packages/ffmpy.py", line 95, in run
  
      stderr=stderr
  
    File "/Users/myname/.conda/envs/xiaoetong/lib/python3.7/subprocess.py", line 800, in __init__
  
      restore_signals, start_new_session)
  
    File "/Users/myname/.conda/envs/xiaoetong/lib/python3.7/subprocess.py", line 1551, in _execute_child
  
      raise child_exception_type(errno_num, err_msg, err_filename)
  
  FileNotFoundError: [Errno 2] No such file or directory: 'ffmpeg': 'ffmpeg'
  
  
  
  
  
  During handling of the above exception, another exception occurred:
  
  
  
  Traceback (most recent call last):
  
    File "/Users/myname/Documents/Projects/xiaoetong/ffmpy_test.py", line 8, in <module>
  
      ff.run()
  
    File "/Users/myname/.conda/envs/xiaoetong/lib/python3.7/site-packages/ffmpy.py", line 99, in run
  
      raise FFExecutableNotFoundError("Executable '{0}' not found".format(self.executable))
  
  ffmpy.FFExecutableNotFoundError: Executable 'ffmpeg' not found
  
  
  
  Process finished with exit code 1
  
  </module>

  The traceback info above literally implies that either ffmpeg is not installed or command is not added to path. However, I did install it, and I could call ffmpeg command successfully in terminal. I could even run that python script without error in zsh terminal within exactly the same conda environment (and using exactly the same python interpreter).

  (Some information that might be useful :

  1. The same code could also be run without error within the same conda environment in PyCharm on Windows 10.

  2. python==3.7.5, ffmpeg==4.2, ffmpy==0.2.2 )

  This error is just so weird that I have no clue. Someone please help, I would appreciate.