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• Differentiate between error and standard terminal log with ffmpeg - nodejs

  21 octobre 2018, par Guig

  I’m using ffmpeg in node js. Both the standard terminal output and the error seems to be sent to stdout, so I don’t know how to differentiate between error and success... Here’s my code :

  var convertToMp3 = function(filePath) {
  
    var ffmpeg = child_process.spawn('ffmpeg',['-i', filePath, '-y', 'output.mp3']);
  
    var err = '';
  
    ffmpeg.stderr
  
      .on('data', function(c) { err += c; })
  
      .on('end', function() { console.log('stderr:', err); });
  
    var d = '';
  
    ffmpeg.stdout
  
      .on('data', function(c){d +=c;})
  
      .on('end', function(){ console.log('stdout', d); });
  
  }

  wether the conversion succeeds or fails, stdout is empty and stderr contains what I’d get if I’d run the corresponding command in the terminal

• Could not find class file in terminal

  7 avril 2016, par nav123

  I am trying to run this command in terminal window of android studio

  D :\android_workspace\VideoMaker>"C :\Program Files\Java\jdk1.8.0_65\bin"\javah -d jni -classpath C :\Users\ST_003\AppData\Local\Android\sdk\platforms\android-19\android.jar ;....\buil
  d\intermediates\classes\debug com.videomaker.videomaker.app.MainActivity

  but getting error

  Error : Could not find class file for ’com.videomaker.videomaker.app.MainActivity’.

  Please Help.

• Running an Terminal command inside a Directory

  22 janvier 2014, par user3220153

  I want to run and tell ffmpeg, a video converter, to combine an audio and video file to one video file. I want to do this in terminal so I can do this repeatedly and quickly.

  This works in Terminal :

  [directoryX]/ ffmpeg -i [directoryX]/sound.wav -i [directoryX]/movie.avi video_finale.mpg
  Pause

  But I do NOT want to keep specifying the directory in Terminal because there are many folders in which I need to do this. I would like to create a .command file, copy it and the ffmpeg application (very small), and past it in every folder that needs a video conversion. I would then run the .command file and it would execute the command mentioned above in the local folder. What is the best way to approach this ???

  This line in .command file does NOT work (inside the folder with ffmpeg, audio and video) :

  ffmpeg -i sound.wav -i movie.avi video_finale.mpg
  Pause

  I get :

  wireless-10-146-122-30:~ yagostucky$ /Volumes/TURBOLINEA/inFrontOfMe/footage/jan-19-2014/dollGhost_duke_act1_scene3_take1/batch.command ; exit;
  
  /Volumes/TURBOLINEA/inFrontOfMe/footage/jan-19-2014/dollGhost_duke_act1_scene3_take1/batch.command: line 1: ffmpeg: command not found
  
  /Volumes/TURBOLINEA/inFrontOfMe/footage/jan-19-2014/dollGhost_duke_act1_scene3_take1/batch.command: line 2: pause: command not found
  
  logout
  
  
  
  [Process completed]