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• Video Processing in background with work manager using ffmpeg

  24 novembre 2020, par Naseer Attari

  The problem comes when during the video processing user closes the application himself from the task manager then its processing stops.

  


  I am working on video file processing in android using FFMpeg, which is working perfectly but when I do close the application during processing from task manager then video processing has stopped working even I added all the work in work manager.

  


      @Override 
public Result doWork() {
        shellCommand = new ShellCommand();
        ffmpegBinary = new String[] {
            FileUtils.getFFmpeg(context).getAbsolutePath()
        };
        command = concatenate(ffmpegBinary, command);
        CommandResult commandResult = getCommandResult(command);
        if (command`enter code here`Result.success) {
            onSuccess(videoPath);
        } else {
            onFailure(videoPath);
        }
    }
    //getCommandResult
    private CommandResult getCommandResult(String[] command) {
        try {
            process = shellCommand.run(command, null);
    
            if (process == null) {
                return CommandResult.getDummyFailureResponse();
            }
            checkAndUpdateProcess();
            return CommandResult.getOutputFromProcess(process);
        } catch(Exception e) {} finally {
            Util.destroyProcess(process);
        }
        return CommandResult.getDummyFailureResponse();
    }


  


  As far as I can tell, when the application closes from the background then the parent process destroys it and is destroying all of its sub-process too, FFMpeg is using the android process to execute the command and check the video file status during video processing.

  


  Looking forward to hear from you.
Thanks

  


• Android Video Processing in background with work manager using ffmpeg

  27 juin 2019, par Naseer Attari

  The problem comes when during the video processing user closes the application himself from the task manager then its processing stops.

  I am working on video file processing in android using FFMpeg, which is working perfectly but when I do close the application during processing from task manager then video processing has stopped working even I added all the work in work manager.

      @Override 
  
  public Result doWork() {
  
          shellCommand = new ShellCommand();
  
          ffmpegBinary = new String[] {
  
              FileUtils.getFFmpeg(context).getAbsolutePath()
  
          };
  
          command = concatenate(ffmpegBinary, command);
  
          CommandResult commandResult = getCommandResult(command);
  
          if (command`enter code here`Result.success) {
  
              onSuccess(videoPath);
  
          } else {
  
              onFailure(videoPath);
  
          }
  
      }
  
      //getCommandResult
  
      private CommandResult getCommandResult(String[] command) {
  
          try {
  
              process = shellCommand.run(command, null);
  
  
  
              if (process == null) {
  
                  return CommandResult.getDummyFailureResponse();
  
              }
  
              checkAndUpdateProcess();
  
              return CommandResult.getOutputFromProcess(process);
  
          } catch(Exception e) {} finally {
  
              Util.destroyProcess(process);
  
          }`enter code here`
  
          return CommandResult.getDummyFailureResponse();
  
      }

  As far as I can tell, when the application closes from the background then the parent process destroys it and is destroying all of its sub-process too, FFMpeg is using the android process to execute the command and check the video file status during video processing.

  Looking forward to hear from you.
  Thanks

• Sometimes ffmpeg crashes and the process still on task manager in windows

  23 février 2018, par parsa

  I’m using ffmpeg for transcoding my videos on my servers.

  Some times ffmpeg carshes in transode during, and that process stalled on task manager and it used ram,but not consumed cpu(it seems ffmpeg crashed).

  1- Is there any solution for knowing that how can I manage this process on my servers ?

  2- Must be handle that from web server side or can I manage it from ffmpeg side ?

  I mean, ffmpeg has there any property for when transcoding take a long time,that stops.

  Or Can I handle this from server side(iis recycling stops the process in run time transcoding, i don’t want to use that, maybe I’m wrong, just help me).

  What is the best solution ?

  I used this code for example :

      ffmpeg -i kata.mp4 -filter_complex 
  
  [0:v]drawtext=fontfile=OpenSansRegular.ttf:text=localhost/Parsa:fontcolor
  
  =white:r=25:box=1:boxcolor=black@0.3:boxborderw=3:fontsize=15:x=15:y=(h-text_h-
  
  15)[v];[v]split=4[s0][s1][s2][s3];[s0]scale=hd720[v0];[s1]scale=hd480[v1];
  
  [s2]scale=nhd[v2];[s3]scale=cga[v3] -map [v0] -map [v1] -map [v2] -map [v3] -map
  
   a? -c:v libx264 -c:a aac -f tee -g 48 -threads 0 "
  
  [select='v\:0,a':f=hls:hls_list_size=0]../video/720p/out.m3u8|
  
  [select='v\:1,a':f=hls:hls_list_size=0]../video/480p/out.m3u8|
  
  [select='v\:2,a':f=hls:hls_list_size=0]../video/360p/out.m3u8|
  
  [select='v\:3,a':f=hls:hls_list_size=0]../video/200p/out.m3u8"