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• ffmpeg : don’t reconfigure terminal if we’re not taking input from stdin

  8 septembre 2016, par Rodger Combs

  ffmpeg : don’t reconfigure terminal if we’re not taking input from stdin
  

  • [DH] ffmpeg.c
  • [DH] ffmpeg_opt.c

• Real time ffmpeg output from terminal in php

  8 novembre 2014, par user2978381

  I am using this code to get real time update from windows terminal. It doesn’t output anything in the browser but process the command and in the background and completes the conversion.

      set_time_limit(0);
  
      $ffmpegCommand  = 'C:\\ffmpeg\\bin\\ffmpeg';
  
  
  
      $handle = popen($ffmpegCommand." -i upload/1415292048.mp4 -ar 22050 -ab 32 -f flv -s 640x320 -vcodec libx264  -vsync 1  -bt 50k converted/video001.flv", "r");
  
  
  
      if (ob_get_level() == 0) 
  
          ob_start();
  
  
  
      while(!feof($handle)) {
  
  
  
          $buffer = fread($handle, 4096);
  
          $buffer = trim(htmlspecialchars($buffer));
  
          echo "<pre>";
  
  
  
          echo $buffer ;
  
          echo str_pad('', 4096);
  
          echo "</pre>";
  
  
  
          ob_flush();
  
          flush();
  
          sleep(1);
  
      }
  
  
  
      pclose($handle);
  
      ob_end_flush();

  But when the same code I am using for youtube_dl it updates in the real time.

      header('Content-Encoding: none;');
  
  
  
      set_time_limit(0);
  
  
  
      $handle = popen("python -m youtube_dl -F http://vimeo.com/30261818", "r");
  
  
  
      if (ob_get_level() == 0) 
  
          ob_start();
  
  
  
      while(!feof($handle)) {
  
  
  
          $buffer = fread($handle, 4096);
  
          $buffer = trim(htmlspecialchars($buffer));
  
          echo "<pre>";
  
  
  
          echo $buffer ;
  
          echo str_pad('', 4096);
  
          echo "</pre>";
  
  
  
          ob_flush();
  
          flush();
  
          sleep(1);
  
      }
  
  
  
      pclose($handle);
  
      ob_end_flush();

  So if I want to show output of ffmpeg in the browser what should I do ?

• How do I use ffprobe in Terminal ?

  9 avril 2020, par Westicle

  When I use ffmpeg I use it like this :

  



  ./ffmpeg -ss 00:30:00 -i inputvideo.mp4 -t 00:00:20 -c:v copy -c:a copy outputvideo.mp4


  



  So how to I use ffprobe ? I've tried this but I can't get it to work :

  



  ./ffmpeg ffprobe -v error -show_frames inputvideo.mp4