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• ffmpeg mp3 merging -itsoffset has no effect

  12 août 2015, par Itzhak Wein

  I use ffmpeg to merge mp3’s in my node server. It works but the offset doesn’t have any effect..
  I can’t see what is wrong then i’d like to get your help :)

  var command = "ffmpeg -i "+ input1+ " -itsoffset 40 -i " + input2 +" -filter_complex amerge -c:a libmp3lame -q:a 4 "+ output;
  
  
  
          exec(command, function (error, stdout, stderr) {
  
              if (stdout) console.log(stdout);
  
              if (stderr) console.log(stderr);
  
  
  
              if (error) {
  
                  console.log('exec error: ' + error);
  
                  response.statusCode = 404;
  
                  response.end();
  
  
  
              } else {
  
                  // Do something
  
              }
  
  
  
          });

  I tried it also on my computer just in the terminal and it also works with the same problem..

  Thanks,
  Itzhak

• How do I batch cut videos ? [closed]

  12 février 2024, par EngineerJack

  I've searched for a while on Google, but haven't found a good solution.

  


  I have multiple videos that I want to cut parts from, so I would like to figure out how to batch cut them so I can figure out each video, then cut them all at once.

  


  I assume I'll use the terminal or powershell, and use commands, write down the info for each video in a file (like a script) then call on that file so they process one after another from that script.

  


  I know that I can do this one-by-one with the code below, but I would like to know how to use the following code for multiple videos as I described above.

  


  ffmpeg -i "video.mp4" -ss 00:00:00 -to 00:00:00 -async 1 -strict -2 "cut.mp4"

  


  BUT, a program (preferrably freeware) that isn't a video editor, but one that I can put the "start" and "end" times, then add multiple videos, WOULD be preferred.

  


  Anyone who can help me with this, I'd appreciate it.

  


  I've tried searching for ways to do this using .bat and .ps1 files on Google, but without finding a good solution.

  


• How can I close all the threads and multiprocesses in a Tkinter app when the app closes ?

  3 septembre 2021, par kup

  I am creating a Tkinter application which starts a multiprocess.process (daeman = True) and then that process further starts a couple of threads and that thread further starts an FFmpeg process.

  


  for i, val in enumerate(group):
    threads.append(Thread(target = self.ffmpeg, args=(val, )))
    threads[i].start()


  


  But when I close the application the process does not stop. I can still see the log in the terminal after I close the application.

  


  I just want them to close when application shuts down.

  


  I also tried :

  


  sys.exit()