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• 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


  


• Debian ffmpeg working in terminal but not in php

  30 octobre 2013, par user2938660

  I reinstalled ffmpeg on debian and php exec doesn't work for me anymore when called from php. I'm using :

  if ($success_msg) 
  
  {
  
      $tmp_parts = explode('.', $file['name']);
  
      $ext = array_pop($tmp_parts);
  
      $ext = strtolower($ext);
  
      if($ext == "avi" && $convert_avi == true)
  
      {
  
          $convert_source = _VIDEOS_DIR_PATH.$new_name;
  
          $conv_name = substr(md5($file['name'].rand(1,888)), 2, 10).".mp4";
  
          //$conv_name2 = substr(md5($file['name'].rand(1,888)), 2, 10).".mp4";
  
          $converted_file  = _VIDEOS_DIR_PATH.$conv_name;
  
          //$fastarted_file  = _VIDEOS_DIR_PATH.$conv_name2;
  
          $ffmpeg_command = 'ffmpeg -i '.$convert_source.' -r 20 -g 40 -acodec libfaac -ar 44100 -ab 96k -vcodec libx264 -sameq '.$converted_file;
  
          //$faststart_command = "qt-faststart ".$converted_file." ".$fastarted_file;
  
          shell_exec($ffmpeg_command);
  
          unlink($convert_source);
  
          //shell_exec($faststart_command);
  
          $sql = "UPDATE pm_temp SET url = '".$conv_name."' WHERE url = '".$new_name."' LIMIT 1";
  
          $result = @mysql_query($sql);
  
  }
  
  echo $success_msg;

  this code to convert videos and ffmpeg output is :

  root@1tb:~# ffmpeg -version
  
  ffmpeg version git-2013-10-28-f1f0b01
  
  built on Oct 29 2013 02:05:45 with gcc 4.4.5 (Debian 4.4.5-8)
  
  configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3 --enable-x11grab
  
  libavutil      52. 48.100 / 52. 48.100
  
  libavcodec     55. 39.100 / 55. 39.100
  
  libavformat    55. 19.104 / 55. 19.104
  
  libavdevice    55.  5.100 / 55.  5.100
  
  libavfilter     3. 90.100 /  3. 90.100
  
  libswscale      2.  5.101 /  2.  5.101
  
  libswresample   0. 17.104 /  0. 17.104
  
  libpostproc    52.  3.100 / 52.  3.100
  
  root@1tb:~#

  in terminal it works fine just via php not im sure this is server problem and exec is enabled.