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• avformat/utils : Do not update programs streams from program-less streams in update_wr...

  14 décembre 2014, par Michael Niedermayer

  avformat/utils : Do not update programs streams from program-less streams in update_wrap_reference()
  Fixes Ticket3686
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavformat/utils.c

• 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());
  
      }
  
  }

• Cannot Compile C Program That Uses a Library (FFmpeg) with GCC Because of the Library's Include Statements

  12 septembre 2019, par NetherGranite

  I am unable to compile a C project that uses a library called "FFmpeg" with a compiler called "GCC", and I believe it might be either because I don’t quite understand how #include works or because I am using the wrong compilation process.

  In a folder called Test, I have a file Test/test.c with the following contents :

  #include 
  
  #include 
  
  #include "FFmpeg/libavcodec/avcodec.h"

  The folder FFmpeg is located at Test/FFmpeg. When I try to compile this with GCC, I receive the following error :

  fatal error: libavutil/samplefmt.h: No such file or directory

  The file Test/FFmpeg/libavcodec/avcodec.h has the following code in it :

  #include "libavutil/samplefmt.h"
  
  #include "libavutil/attributes.h"
  
  #include "libavutil/avutil.h"
  
  ... //many more #include statements

  Is the issue here that I need to add "FFmpeg/" to all of these include statements ?

  If so, is there a way to automatically do this ? This library is enormous and probably has hundreds of these statements.

  If not, what should I be doing instead ? Should I attempt to compile the library by itself ? If so, how do I then include this compiled version of the library in my program ?

  ---

  Notes :

  • The command I am using to compile is gcc -c test.c.
  • I have GCC installed via MinGW.
  • I ultimately need to be able to compile this program to both a .dll and an .so.

  ---

  I apologize if any of the terminology I use here is incorrect or if my explanations are poor. I know almost nothing about compilation. Please let me know if I need to fill in more information.