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• I am trying to use ffmpeg to separate audio from video, but after downloading the ffmpeg build I cannot seem to activate it in Power Shell [duplicate]

  19 janvier 2021, par Row Boater

  Ok, look y'all, I am NOT an aspiring programmer. I'm simply trying to separate audio from video of a youtube video I downloaded.

  


  What I've done :

  


  Downloaded YT vid using 4k video Downloader

  


  I downloaded ffmpeg build from https://ffmpeg.org/download.html#build-windows

  


  I downloaded WinZip in order to access the ffmpeg files.

  


  I thought I used winzip correctly, but whenever I paste the command code line recommended to me, ffmpeg -i video.mp4 -c:a pcm_s16le audio.wav, I receive the following :

  


  


  PS C :\Users\user\Videos\4K Video Downloader> ffmpeg -i video.mp4 -c:a
pcm_s16le audio.wav ffmpeg : The term 'ffmpeg' is not recognized as
the name of a cmdlet, function, script file, or operable program.
Check the spelling of the name, or if a path was included, verify that
the path is correct and try again. At line:1 char:1

  


  

  • ffmpeg -i video.mp4 -c:a pcm_s16le audio.wav

  


  • 


      + CategoryInfo          : ObjectNotFound: (ffmpeg:String) [], CommandNotFoundException
  + FullyQualifiedErrorId : CommandNotFoundException



    


  


  


  PS C :\Users\user\Videos\4K Video Downloader>

  


  


  This is all Phoenician to me, but what I take away is that I have not completed some step to fully incorporate the ffmpeg code into my system. I believe that I am not using Winzip correctly.

  


  Thanks for your time.

  


• atomics : cosmetics : Restructure ifdefs for greater clarity

  18 décembre 2013, par Diego Biurrun

  atomics : cosmetics : Restructure ifdefs for greater clarity
  Also fix the #endif comment in a few places and #include config.h to
  
  avoid assuming it is #included implicitly.
  

  • [DBH] libavutil/atomic.c
  • [DBH] libavutil/atomic.h

• avisynth : Support video input from AviSynth 2.5 properly.

  16 août 2013, par Stephen Hutchinson

  avisynth : Support video input from AviSynth 2.5 properly.
  Uses the 2.5 compatibility header included with the variant of
  
  FFMS2 that uses AviSynth’s C-interface. A copy of this header is
  
  now provided in compat/avisynth.
  avs_get_row_size_p and avs_get_height_p changed between versions
  
  2.5 and 2.6. Since the avisynth_c.h header that avformat uses
  
  assumes AviSynth 2.6, it would cause 2.5 to crash if given any
  
  kind of real video (the Version() function was known to work,
  
  though).
  AvxSynth was unaffected by this issue because, despite being based
  
  on AviSynth 2.5.8 and using 2.5.8’s interface version number of 3,
  
  it actually uses 2.6’s versions of these functions.
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] compat/avisynth/avisynth_c_25.h
  • [DH] libavformat/avisynth.c