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• How do I automate running a batch command with 3 arguments in C# (MVC 3) ?

  13 janvier 2014, par kheya

  I have this command in process.bat file
  This file takes 3 arguments - %1 = input file path %2=output path %3=output file name

  This is how I call it in command prompt :

  C:apps\xyz\>process.bat "c:\files\uploads" "c:\files\output" "123"

  This creates 2 files : c :\files\output\abc.mp4 and c :\files\output\123.jpg using FFMPEG
  Things work fine if I run in command prompt.

  @echo off 
  
  set w=480 
  
  set h=320 
  
  for "%%a" in ("%1\*.avi") 
  
  do (ffmpeg -i "%%a" -c:v libx264 -movflags +faststart -preset slow -crf 22 -b:v 500k -vf "scale=480:trunc(ow/a/2)*2" -threads 0 -c:a libfdk_aac -b:a 128k "%2/%%~na.mp4" -vf select="not(mod(n\\,10))" -r 1 -t 1 -ss 3 -s sqcif "%2\%3.jpg")

  But I need to automate this process. So I want a scheduled job or some other process that will process file periodically or when there are files to process.

  I was thinking to create a C# Console app that will run every x minutes.
  Console app will pass the 3 parameter to the bat file and run it.
  But I am having nightmare with the console app. It just doesn't work.
  I never see the files generated nor any error given.

  What will be the best practice to implement this automation in windows os (C#, MVC 3) ?

  Here is what I tried that never worked :

  public static string RunBatchFile(string fullPathToBatch, string args) {            
  
      using (var proc = new Process {
  
          StartInfo =
  
          {                                        
  
              FileName = fullPathToBatch,
  
              Arguments = args,
  
              UseShellExecute = false,
  
              CreateNoWindow = true,
  
              RedirectStandardOutput = false,
  
              RedirectStandardError = false
  
          }
  
      })
  
      {
  
          try {
  
              proc.Start();
  
              proc.WaitForExit();                   
  
          } catch (Win32Exception e) {
  
              if (e.NativeErrorCode == 2)
  
                  return "File not found exception";
  
              else if (e.NativeErrorCode == 5)
  
                  return "Access Denied Exception";
  
          }
  
      }
  
  
  
      return "OK";
  
  }

• Is ffmpeg running in CPU or GPU ?

  14 juillet 2016, par Raghul Selvaraj

  It has been shown in the link

  https://dri.freedesktop.org/wiki/IntelPerformanceTuning/

  Step 2 : CPU vs GPU

  that if the CPU % is more than 90 then the app is running in CPU.

  While configuring ffmpeg, I enabled opencl. ffmpeg configurations are,

  ffmpeg version ebe0fa0 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
  
    configuration: --enable-gpl --enable-libx264 --enable-opencl --enable-nonfree --enable-libmfx --enable-libmp3lame --enable-libaacplus
  
    libavutil      54. 31.100 / 54. 31.100
  
    libavcodec     56. 60.100 / 56. 60.100
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 40.101 /  5. 40.101
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Hyper fast Audio and Video encoder
  
  usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

  But while running ffmpeg using the command

  ffmpeg -i /home/M.mp4 -c:v h264 -preset:v faster /home/out.avi

  the CPU% has been more than 90 (375%).

  In case of ImageMagick, if I enable opencl while configuring, then the app will run in GPU, i.e., the CPU% will be less than 90. I noticed that.

  But in case of ffmpeg, it is GPU accelerated one. Then, Why the CPU% is more than 90% ? Is the ffmpeg running in CPU or GPU ? If it is not, how can I make it to run in GPU ?

• Is ffmpeg running in CPU or GPU ?

  25 mai 2021, par Raghul Selvaraj

  It has been shown in the link

  



  


  https://dri.freedesktop.org/wiki/IntelPerformanceTuning/

  
 


  Step 2 : CPU vs GPU

  


  



  that if the CPU % is more than 90 then the app is running in CPU.

  



  While configuring ffmpeg, I enabled opencl. ffmpeg configurations are,

  



  ffmpeg version ebe0fa0 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
  configuration: --enable-gpl --enable-libx264 --enable-opencl --enable-nonfree --enable-libmfx --enable-libmp3lame --enable-libaacplus
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...


  



  But while running ffmpeg using the command

  



  ffmpeg -i /home/M.mp4 -c:v h264 -preset:v faster /home/out.avi

  



  the CPU% has been more than 90 (375%).

  



  In case of ImageMagick, if I enable opencl while configuring, then the app will run in GPU, i.e., the CPU% will be less than 90. I noticed that.

  



  But in case of ffmpeg, it is GPU accelerated one. Then, Why the CPU% is more than 90% ? Is the ffmpeg running in CPU or GPU ? If it is not, how can I make it to run in GPU ?