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• Meaningful thumbnails for a Video using PHP-FFMpeg (Laravel 5)

  10 juillet 2015, par JungleGenius

  I’m working on a project using Laravel 5 and the PHP-FFmpeg Library.

  Previously someone else asked this question "Meaningful thumbnails for a Video using FFmpeg" that works from the command line.

  However, I want to implement the functional equivalent using the PHP-FFmpeg Library.

  I have scanned both Stack Overflow and the Unit Tests for PHP-FFmpeg to try and figure out the correct syntax, but it is just not jumping out at me.

  So I’m hoping someone with more experience with PHP-FFmpeg can give me some pointers or an example of how to achieve the same results as the command line calls referenced in this post : "Meaningful thumbnails for a Video using FFmpeg".

  Thanks in advance for everyone’s help.

  BTW, This is my first post on Stack Overflow so the site won’t let me post all the relevant links (limit 2) or create a tag for "PHP-FFmpeg".

• shell_exec echo'ing too fast or too late

  15 septembre 2016, par root

  So I read throug this article : https://trac.ffmpeg.org/wiki/PHP
  and found this :

  <?php
  
  echo "Starting ffmpeg...\n\n";
  
  echo shell_exec("ffmpeg -i input.avi output.avi >/dev/null 2>/dev/null &");
  
  echo "Done.\n";

  the code works almost perfectly fine, but the only thing that bothers me is, that because the shell_exec is being executed in the background (so there is no loading sign on the tab the whole time) all the echo’s are being executed immediatly. This means, that the "Done" echo is being written before ffmpeg finished its task.

  But when I remove the ’&’ the site does also what it is intended to do but now it waits until the shell_exec is finished until it echo’s out the "Starting ffmpeg..."

  So I kinda have the problem of figuring out how to get to such an order :

  1) echo something
  2) execute commad and wait until its finished.
  3) echo again

  I am a total beginner to php but have experience in programming overall. Please have mercy.

  Thank you for your time !

• ffmpeg expert to help me with an encoding problem [closed]

  22 août 2022, par Michael Heuberger

  I'm the developer of www.videomail.io and experience issues with audio. It's a heavily used, free service to enable Deaf people to email in Sign Language. Runs on ffmpeg (under node-fluent-ffmpeg) and JavaScript (Node.js).

  


  Since I am Deaf myself, I am unable to repair some audio-related issues while muxing video with audio together on server side via ffmpeg. Reason for adding audio is to expand the target audience.

  


  That said, I'm searching for someone to help me with this. It's a paid job !

  


  Requirements :

  


  

  • Must know ffmpeg very well, especially on how to encode audio (WAV) and video (MP4) together without any audio delays.

  


  • Knowing JavaScript would be a massive plus for writing code

  


  • Has time in the following weeks, I guess about 10 hours or so.

  


  


  If you are keen, ping me please. My page is www.binarykitchen.com - thanks !