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• FFMPEG code not generating thumbnail, but it was working before [closed]

  25 mars 2020, par Shijil

  I want to save thumbnails in my website using this simple FFMPEG code.
  I tried to run it, but it shows error

      <?php
  
  
  
  
  
  $file="Videos/bloodshot.mp4";
  
  $vname="bloodshot";
  
  
  
  $W = intval($_GET['file']);
  
  $H = intval($_GET['file']);
  
  
  
  if(substr($file,0,1) != '.'){
  
  
  
  $mov = new ffmpeg_movie($file);
  
  $wn = $mov->GetFrameWidth();
  
  $hn = $mov->GetFrameHeight();
  
  
  
  $frame = $mov->getFrame(32);
  
  
  
  $gd = $frame->toGDImage();
  
  
  
  if(!$W and !$H)
  
  {
  
  
  
  $W = $neww; // width of the image
  
  $H = $newh; // height image
  
  }
  
  
  
  
  
  $new = imageCreateTrueColor($W, $H);
  
  imageCopyResized($new, $gd, 0, 0, 0, 0, $neww, $newh, $wn, $hn);
  
  $black = imagecolorallocate($new, 255, 255, 255);
  
  imagegif($new);
  
  imagegif ($new, './thumb/success.gif', 100);
  
  }
  
  ?>

  error log is

  [25-Mar-2020 14:52:31 UTC] PHP Fatal error:  Uncaught Error: Class 'ffmpeg_movie' not found in /home/xxxxxxx/public_html/Videos/ffmpeg.php:12
  
  Stack trace:
  
  #0 {main}
  
    thrown in /home/xxxxxxx/public_html/Videos/ffmpeg.php on line 12

  I was able to run it without error in a mobile site few years ago. But it seems to be not working now.
  Server has FFMPEG support.
  I am not an expert in php, please fix this code for me.

• Anomalie #2791 (Fermé) : Petite coquille dans le code de la balise #URL_PAGE

  9 juillet 2012, par Frank -

  Une petite coquille est présente dans le code de la balise #URL_PAGE, et elle semble présente dans toutes les versions de spip, dans le fichier ecrire/balise/url_.php à la ligne 158 : $code = "generer_url_public($code, $args$noentities)" ; ce qui devrait donner après correction : $code = (...)

• How to code Laravel FFMpeg video conversion for specific parameters ?

  7 octobre 2022, par Wayne Fulcher

  I am using Laravel 9.x running php 8.1.x.
I have some code that I use to convert videos that have a context type other than video/mp4 to a H264 format. The reason is to make a video format that is compatible with Apple (iOS), Android and most web browsers. This code has worked so far on every video we have used it on except for one.
My current code is

  


          $ffmpeg = FFMpeg::create();
        $video = $ffmpeg->open($videoFilename);
        $format = new X264();
        $format->setAudioCodec("aac"); 
        $video->save($format, $newFilename);


  


  So in an attempt to debug what else needs to be done I started manually running ffmpeg commands on my computer against a copy of the video in question. I have finally figured out what additional parameters are required to successfully convert that video so it plays on all devices. The manual command is as follows :

  


  ffmpeg -i input.mov -pix_fmt yuv420p -b:v 4000k -c:v libx264 output.mp4


  


  I am about 90% sure the parameters that dealt with the specifics of this video were the following :

  


  -pix_fmt yuv420p -b:v 4000k

  


  My problem now is I can not figure out what changes to my php code I need to make that would be the equivalent to those additional command line parameters.
Also I am wondering as I am typing this question, is there a way for me to "auto-detect" when a video requires this additional parameters or not ? (maybe that is a second post/question)