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• ffmpeg not installing after following the official instructions

  6 mai 2020, par mm_

  I am trying to install ffmpeg following this list of instructions. That is :

  



  sudo add-apt-repository ppa:mc3man/trusty-media  
sudo apt-get update  
sudo apt-get install ffmpeg  
sudo apt-get install frei0r-plugins  


  



  However I get :

  



  No apt package "ffmpeg"


  



  and

  



  E: Unable to locate package frei0r-plugins


  



  respectively when I run sudo apt-get install ffmpeg and sudo apt-get install frei0r-plugins. It is worth noting that I get a lot of errors when I do sudo apt-get update that look like :

  



  Err:4 http://us.archive.ubuntu.com/ubuntu saucy Release                                                                                                                                     
  404  Not Found [IP: 91.189.91.38 80]

E: The repository 'http://us.archive.ubuntu.com/ubuntu saucy Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.


  



  I am using lubuntu 0.14.1. Thanks for your help !

  


• ffmpeg in AWS EBS Php Environment

  3 janvier 2018, par Shihas

  I did a project in Codeigniter framework and uploaded to AWS EBS Php environment.

  In the below function I’m trying to create a thumbnail for the uploading video using ffmpeg.

  function test()
  
  {
  
      if($_FILES['video']['name'])
  
      {
  
          $extension = pathinfo($_FILES['video']['name'], PATHINFO_EXTENSION);
  
  
  
          $video_file = 'vid_'.time().rand(0,10000000);
  
          $video_file_name = $video_file.'.'.$extension;
  
          $video_thumb = $video_file.'.png';
  
  
  
          $path = base_url('/assets/portfolio_video/').$video_file_name;
  
          move_uploaded_file($_FILES["video"]["tmp_name"],$path);
  
          echo shell_exec("/usr/bin/ffmpeg -i /home/ubuntu/project/assets/portfolio_video/$video_file_name -ss 00:00:02.000 -vframes 1 /home/ubuntu/project/assets/thumbnail/$video_thumb");
  
  
  
          echo "File Name: ".$video_file_name."";
  
          echo "<img src="http://stackoverflow.com/feeds/tag/&#034;.base_url(&#034;assets/thumbnail/&#034;).$video_thumb.&#034;" style='max-width: 300px; max-height: 300px' />";
  
      }else{
  
          $this->load->view('test');
  
      }
  
  }   

  Here the problem was the video file itself not uploading. I just want to know why its not uploading files in AWS. But it works fine in my local server.

  Now I try to create a thumbnail for the already existing video in the server.

  Path of video file : /home/ubuntu/123.mp4

  Code executed :

  function test()
  
  {
  
      echo shell_exec("/usr/bin/ffmpeg -i /home/ubuntu/123.mp4 -ss 00:00:02.000 -vframes 1 /home/ubuntu/thumbnail.png");
  
  }

  But still the thumbnail is not creating.

  NOTE : When I execute the terminal command ffmpeg -i /home/ubuntu/123.mp4 -ss 00:00:02.000 -vframes 1 /home/ubuntu/thumbnail.png directly in the AWS server terminal its create the thumbnail successfully.

• Statically link OpenCV 2.3.1 (Linux)

  15 mai 2012, par Vadim Kantorov

  I've got x264/ffmpeg/OpenCV (and their dependencies) installed at a local machine (following http://mitchtech.net/opencv-ubuntu/). I'd like to statically link my app to get a xcopy-deployable package.

  Has anyone succeeded in doing this ?

  Thanks,
  Vadim.