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• php shell_exec() command pop out error and permission denied ffmpeg

  19 octobre 2016, par user3711175

  This is the main index.php file where I run my code to generate a video thumbnail with ffmpeg but it has no lucks at all I have been searching online for a lot of solution but nothing comes out i will be very appreciate if you guys can help me out. The shell_exec() keep giving me error

  <form action="index.php" method="POST" enctype="multipart/form-data">
  
  <input type="file" /><input type="submit" value="upload" />
  
  
  
  </form>
  
  
  
  &lt;?php
  
  
  
  if(isset($_POST['submit'])){
  
  
  
  
  
  $ffmpeg = "/Users/mac/Documents/ffmpeg/3.1.4/bin/ffmpeg";
  
  $videoFile = $_FILES["file"]["tmp_name"];
  
  $imageFile = "1.jpg";
  
  $size = "320x240";
  
  $getFromSecond = 5;
  
  $cmd = "$ffmpeg -i $videoFile -an -ss $getFromSecond -s $size $imageFile 2>&amp;1";
  
  
  
      echo shell_exec($cmd);
  
  
  
  
  
  echo shell_exec('whoami');
  
  if(!shell_exec($cmd)){
  
  
  
  
  
      echo "thumbnail created";
  
  }else{
  
      echo "error creating thumbnail";
  
  }
  
  
  
  
  
  
  
  
  
  
  
  
  
  }
  
  
  
  ?>

• ffmpeg combine two commands compress and watermark [on hold]

  13 mars 2019, par tour travel

  I am trying to compress and also add water mark on video via ffmpeg each command work great

  ffmpeg -i vid.mp4 -s 480x320 -acodec aac -strict -2 -ac 1 -ar 16000 -r 13 -ab 32000 -aspect 3:2 output.mp4

  And :

  ffmpeg -i vid.mp4 -i logo.png -filter_complex "hflip[flipped];[flipped]overlay=x=20:y=20" -strict -2 out.mp4

  But I want to do both command together, What I tried :

  ffmpeg -i vid.mp4 -s 480x320 -acodec aac -strict -2 -ac 1 -ar 16000 -r 13 -ab 32000 -aspect 3:2 && -i logo.png -filter_complex "hflip[flipped];[flipped]overlay=x=20:y=20" -strict -2 output.mp4

  I used && and | or , but none of these working as expected, any solution ?

  Order is important, It should first compress video then add water
  mark.

• FFMPEG gdigrab not stopping when title changes

  13 avril 2021, par Vishwesh

  I am trying to capture a video playlist using ffmpeg gdigrab. The player takes in input a batch of videos. I want to create a separate video for each loaded file in the player. I was able to use ffmpeg gdigrab to capture the video for one video. The problem is, it does not stop when the window title changes (that is when the next file is loaded), and instead it creates just one file for the entire duration. The only way to stop it was if I close the entire window. The reason I can't go ahead with it is because the user will be given an option to change any settings in the beginning of the recording and then the entire playlist will use the same settings.

  


  I also tried other options like using subprocess.Popen to start the ffmpeg and then using .terminate() or .kill() to stop it, but the recording still keeps on going. Similarly, sending 'q' key from a file did not work either.

  


  Ideally, I would expect that gdigrab should be able to detect when the grabbed window title differs from the expected one and stop, however, here it looks like it's anchoring itself to the window instead of the title.

  


  I am using a Windows 10 PC and programming language for this tool is Python. I am using ffmpeg version 4.4-full_build.

  


  If you have any ideas regarding this, it would be of great help.