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• Converting Video files in a Azure Webjob with ffMpeg

  13 décembre 2016, par Kevin Phifer

  I’m having trouble using ffMpeg in an Azure webjob.

  I found the following article (How to call ffmpeg.exe to convert audio files on Windows Azure ?) and it is exactly what I want to do, however, I cannot get ffMpeg to execute and it gives no error message.

  To diagnose the problem, I have boiled it down to its essentials by uploading ffMpeg, a video file to convert, and batch file to run it :

  

  The script in run.cmd is simply :

  del output.mp4
  
  ffmpeg -i screencast.wmv -c:v libx264 -r 15 output.mp4

  This works on my personal machine, but ran as a webjob I get results below.

  [12/08/2015 15:42:39 > bf9dd6: SYS INFO] Status changed to Initializing
  
  [12/08/2015 15:42:39 > bf9dd6: SYS INFO] Job directory change detected: Job file 'ffmpegtest\output.mp4' exists in source directory but not in working directory.
  
  [12/08/2015 15:42:47 > bf9dd6: SYS INFO] Run script 'run.cmd' with script host - 'WindowsScriptHost'
  
  [12/08/2015 15:42:48 > bf9dd6: SYS INFO] Status changed to Running<br />
  
  [12/08/2015 15:42:48 > bf9dd6: INFO] 
  
  [12/08/2015 15:42:48 > bf9dd6: INFO] D:\local\Temp\jobs\triggered\ffMpeg\y1bdnb1e.03k\ffmpegtest>del output.mp4 
  
  [12/08/2015 15:42:48 > bf9dd6: INFO] 
  
  [12/08/2015 15:42:48 > bf9dd6: INFO] D:\local\Temp\jobs\triggered\ffMpeg\y1bdnb1e.03k\ffmpegtest>ffmpeg -i screencast.wmv -c:v libx264 -r 15 output.mp4 
  
  [12/08/2015 15:42:49 > bf9dd6: SYS INFO] Status changed to Failed
  
  [12/08/2015 15:42:49 > bf9dd6: SYS ERR ] Job failed due to exit code -1073741515

  Edit :
  Additionally, it was suggested that I run using Kudu console. Still no luck :
  

  Solution :
  I ended up needing to run the 32 version of ffMpeg and not the 64 bit. Thanks so much @mathewc !

• Adobe Air , NativeProcess and ffmpeg

  18 août 2013, par Tom Lecoz

  First of all, please excuse me if my english is not perfect, I hope you could understand me...

  I discover yesterday this video tutorial about Air Native Process and FFMPEG, it shows how to create an Air app that can read every video format (avi, mkv, ...).

  http://www.youtube.com/watch?v=6N7eN9wvAGQ

  I tryed to reproduce it but obviously it didn't work...

  Then I looked for an example of it, with working source code, on the internet. I found this

  http://suzhiyam.wordpress.com/2011/05/05/as3ffmpeg-play-multi-video-formats-in-air/

  The author said it's a document class for a Flash project, it just need a button component, a text area and a video Object.

  I tryed it inside a Flash project, it didn't work...
  So, I made some adjusment to run it outside Flash (I just replaced the DisplayObject on the stage by ActionScript code), just because it easier if you want to test it.

  When I say "it didn't work", I mean my video is not read at all. The nativeProcess is working, my executable is recognize but I always get some ProgressEvent.STANDARD_ERROR_DATA and then the process stop...

  I'm working on Windows 7 64 bit.
  I tryed with FFMPEG 32 & 64 bit and get the exact same (no) result.

  You can find my code here
  pastebin.com/U3xRUKWe

  Can someone help me ?

  Please ! :)

  Thanks by advance !

  Tom

• Command is running different from expected when i use it trought Python

  17 septembre 2021, par Gustavo Marinho

  I have a code where i download a youtube video as 3gpp and convert it to a mp3, i need to use FFmpeg to do this, and it work well when using both cmd and powershell, but, when i tried to run the same command in Python, it didin't work at all.

  


  This is my command :

  


  ffmpeg -i  C:\YTDownloads\CurrentAudio.3gpp C:\YTDownloads\CurrentAudio.mp3

  


  I tried :

  


  subprocess.call(r'%SystemRoot%\system32\WindowsPowerShell\v1.0\powershell.exe ffmpeg -i  C:\YTDownloads\CurrentAudio.3gpp C:\YTDownloads\CurrentAudio.mp3', shell=True)

  


  subprocess.run(["ffmpeg","-i","C:\YTDownloads\CurrentAudio.3gpp","C:\YTDownloads\CurrentAudio.mp3]")


  


  os.system('powershell ffmpeg -i  C:\YTDownloads\CurrentAudio.3gpp C:\YTDownloads\CurrentAudio.mp3')


  


  subprocess.run([
    'ffmpeg',
    '-i', os.path.join(parent_dir, f"{newname}.3gpp"),
    os.path.join(parent_dir, f"{newname}.mp3")
]) 


  


  subprocess.call('C:\Windows\System32\powershell.exe ffmpeg -i  C:\YTDownloads\CurrentAudio.3gpp C:\YTDownloads\CurrentAudio.mp3', shell=True)


  


  all of them return some type of error, in some of them it returns that ffmpeg isn't a recognized as a internal command, in others it says that the system can't find the specified path, but none of them works, even thought it works perfectly when i use the exactly same command on cmd/powershell.

  


  sorry for my bad english :3