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• ffmpeg program doesn't running on shell script with java Application

  20 octobre 2017, par Hae-Yoon Jo

  I code java Application and running Linux shell-script when java App running on Linux server.
  The linux shell-script is running. But, i need runnning ffmpeg program by shell.

  1. the ffmpeg is running with shell-script command by ./shellName.sh

  2. ffmpeg is not running with java App run by .

     • only ffmpeg command in shell.
     • working mkdir command
     • working pwd command

  #!/bin/bash
  
  echo -n "ffmpeg cmd :"
  
      /home/popsline/ffmpeg -i /home/popsline/sub02_chocolat.mp4 -r 0.14 -ss 00:00:20 -t 10:00:00 -vframes 10 -f image2 -y /home/popsline/img/iamges%d.png
  
  mkdir /home/username/test
  
  pwd

  Java code.

  HomeController.java refer sh.java as Object.
  so codes is follows :

  HomeController.java

  /**
  
   * Simply selects the home view to render by returning its name.
  
   */
  
  @RequestMapping(value = "/", method = RequestMethod.GET)
  
  public String home(Locale locale, Model model) {
  
      logger.info("Welcome home! The client locale is {}.", locale);
  
  
  
      Sh sh = new Sh();
  
      sh.shRun();
  
  
  
      return "home";
  
  }

  sh.java

  private static final Logger logger = LoggerFactory.getLogger(HomeController.class);
  
  
  
  public void shRun(){
  
  
  
      Runtime rt = Runtime.getRuntime();
  
      Process proc = null;
  
      InputStream is = null;
  
      BufferedReader bf = null;
  
  
  
      try {
  
          String[] cmd = {
  
                  "/bin/sh"
  
                  , "-c"
  
                  , "/usr/local/bin/creaThum.sh"
  
          };
  
  
  
          proc = rt.exec(cmd);
  
          proc.getInputStream();
  
          is = proc.getInputStream();
  
          bf = new BufferedReader(new InputStreamReader(is));
  
  
  
          while (true) {
  
              String info = bf.readLine();
  
              if(info == null || info.equals("")){
  
                  break;
  
              }
  
              logger.info("info haeyoon:: " + info);
  
          }
  
      } catch (Exception e) {
  
          logger.info(e.getMessage());
  
      }
  
  }

• why 'read' command in shell script is missing initial characters ? [duplicate]

  15 avril 2019, par tod

  This question already has an answer here :

  • Shell script while read line loop stops after the first line
    
    3 answers
    

  I have the following shell script and it is missing some initial characters (it misses initial couple of characters, so far in my observation) from each line except the first line.

  And this happens only when I use the ffmpeg command. Otherwise, it is fine. But this command does the actual task in this script.

  Why is it so and what is the fix ?

  #!/bin/bash
  
  
  
  while read line; do
  
      printf "%s\n" "$line" 
  
      ifile=$line
  
      printf "%s\n" "$ifile" 
  
      ofile=abc_$line
  
      printf "%s\n" "$ofile" 
  
  
  
      ############### Problem is the following command: ##########
  
      ffmpeg -y -i $ifile -c:v libx264rgb -b:v 512k -bf 0 -pix_fmt rgb24  -r 25 -strict -2 $ofile
  
      ##########rest is fine##########
  
  
  
      echo $ifile
  
  done < file_list

• Shell script not working on a different server

  11 novembre 2013, par Alex Blundell

  I've just migrated a shell script to another server with similar specs (same CentOS version) but the following command seems to fail :

  find /home/removed/captures -name '*.avi' -exec ffmpeg -y -i {} -ab 1280 -b 1024000 {}.mp4 \;

  The following message gets returned :

  find: `ffmpeg': No such file or directory

  I have installed ffmpeg, and made sure it runs from the command line. I've also tried passing in the full path to ffmpeg instead of just 'ffmpeg'. Both ffmpeg versions are the same on each server. I was thinking it was something to do with syntax of the find program changing between versions, but they're both the same version too. This runs via the root crontab.

  The script does run by itself though if I call it directly. Could this be an issue with permissions ? It runs on a cPanel server.

  Thanks :)