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• 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

• Video Processing in background using ffmpeg

  20 juin 2019, par Mehran

  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.

• ffmpeg Invalid data found when processing input

  20 mai 2019, par Sulli

  I’m trying to download a specific part of a youtube video with this code :

  step=`youtube-dl -g -f 'bestvideo[ext=mp4]' https://www.youtube.com/watch?v=pMntMsHTDZ0`
  
  ffmpeg -nostdin  -i "$step" -ss 00:00:10.00 -t 00:00:02.00 -c copy frames/out.mp4

  but I’m getting this error :

  https://manifest.googlevideo.com/api/manifest/dash/requiressl/yes/source/youtube/id/a4c9ed32c1d30d9d/itag/0/ei/fG7iXMihC8_oxwK0qJ-YAQ/playback_host/r6---sn-n4g-jqbd.googlevideo.com/mm/31%2C26/mn/sn-n4g-jqbd%2Csn-5hne6n7s/ms/au%2Conr/mv/m/pl/22/hfr/all/as/fmp4_audio_clear%2Cwebm_audio_clear%2Cwebm2_audio_clear%2Cfmp4_sd_hd_clear%2Cwebm2_sd_hd_clear/initcwndbps/716250/mt/1558343198/fvip/4/ip/79.86.92.133/ipbits/0/expire/1558364892/sparams/ip%2Cipbits%2Cexpire%2Crequiressl%2Csource%2Cid%2Citag%2Cei%2Cplayback_host%2Cmm%2Cmn%2Cms%2Cmv%2Cpl%2Chfr%2Cas%2Cinitcwndbps/signature/D046699C35F9AFF84334BAB20E1D8D4CA5318794.6EF1739E2ED134D16EBBE9242BDDE31F59801AAB/key/yt8: Invalid data found when processing input

  I don’t understand this error, and this code has worked for tens of videos I’ve downloaded before.

  How to fix this or get more information on the error ?