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• Killing all child processes

  12 June 2016, by ErraticFox

  I have written a onclick function that runs child process for a command line for ffmpeg. Though I can’t seem to force close or kill the process in the middle of it. I’ve tried multiple ways such as child.kill() along with SIGINT, SIGKILL, SIGHUP, SIGQUIT, and SIGTERM and it continuously runs in the background still until finished or killed in the task manager. So how can I kill all the process related to the exec?

  Here’s my current code:

  function submitBtn() {
  
      var selectVal1 = $("#inputFile1 option:selected").val(),
  
          selectVal2 = $("#inputFile2 option:selected").val(),
  
          selectOpt2 = $("#inputFile2 option:selected").text().toLowerCase()
  
  
  
      if (!selectVal1 || !selectVal2) {
  
          Materialize.toast('Please select your formats', 4000)
  
      } else if ($("#uploadFile").val() === '') {
  
          Materialize.toast('Please select your file', 4000)
  
      } else {
  
          var process = require("child_process")
  
          var inputDir = uploadFile.files[0].path
  
          var dir = inputDir.split("\\")
  
          var pop = dir.pop()
  
          var outputDir = dir.join("\\")
  
          var cmd = `ffmpeg -y -i "${inputDir}" "${outputDir}\\output.${selectOpt2}"`
  
  
  
          $("#load").removeClass("disabledLoad")
  
          func = process.exec(cmd, function(error, stdout, stderr) {})
  
  
  
          func.on('exit', function() {
  
              $("document").ready(function() {
  
                  $("#load").addClass("disabledLoad")
  
                  Materialize.toast('Conversion compelete!', 4000)
  
              })
  
          })
  
  
  
      }
  
  }
  
  
  
  function exitBtn() {
  
      //var remote = require('electron').remote
  
      //var window = remote.getCurrentWindow()
  
      //window.close()
  
      func.kill()
  
  }

  I even tried renaming process to proc and then doing

      process.on('exit', function () {
  
      console.log('process is about to exit, kill ffmpeg');
  
      func.kill()
  
  })

  in exitBtn but still nothing. It doesn’t give errors or log my string I put.

• avcodec/fmvc: Move frame allocation to a later stage

  10 June 2022, by Michael Niedermayer

  avcodec/fmvc: Move frame allocation to a later stage
  This way more things are checked before allocation
  Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/fmvc.c

• How to avoid child process termination

  10 August 2022, by Akbar Basha

  Basically, I am running one exe file using execFile method from the child process...

  


  That exe file used ffmpeg for some conversion... If ffmpeg throws some error (Basically it won't affect the actual process) my child process is terminated automatically because the error has been captured...

  


   this.recorder = execFile(`"${BIN}"`, command, { shell: true, maxBuffer: (1024 * 1024 * 2) }, (error) => {
                if (error) {
                    log('error', 'Recorder error', error);
                }
            });


  


  Is there any way to prevent this?