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• Class "FFMpeg\FFMpeg" not found

  16 août 2024, par Saeed Eisakhani

  I installed ffmpeg on xampp by COMPOSER. I installed FFMPEG on windows before.


  


  Then with the command composer require php-ffmpeg/php-ffmpeg installed php-ffmpeg


  


  I use code below (from php-ffmpeg github) for a test but this does not work

  


  <?php

require '../../phpMyAdmin/vendor/autoload.php';

$ffmpeg = FFMpeg\FFMpeg::create(); // line 5 that error referees to 
$video = $ffmpeg->open('video.mpg');
$video
    ->filters()
    ->resize(new FFMpeg\Coordinate\Dimension(320, 240))
    ->synchronize();
$video
    ->frame(FFMpeg\Coordinate\TimeCode::fromSeconds(10))
    ->save('frame.jpg');
$video
    ->save(new FFMpeg\Format\Video\X264(), 'export-x264.mp4')
    ->save(new FFMpeg\Format\Video\WMV(), 'export-wmv.wmv')
    ->save(new FFMpeg\Format\Video\WebM(), 'export-webm.webm');

?>


  


  This is the error I encounter.


  


  I read many and many similar questions but almost all of them suggest require '../../phpMyAdmin/vendor/autoload.php'; that I have it in my code.

  


• Can I use the "stream copy" of ffmpeg in OpenCV with VideoWriter class ?

  14 mai 2019, par DerekG

  Python : 3.6, Ubuntu 18.04, OpenCV 4.1.0

  I have an IP camera that streams video data in H.264 encoding. I would like to take this video stream and save it in a .avi file using Python without any encoding or decoding. Using a command line interface and ffmpeg commands, this is trivial to do.

  mycomputer@home:~$ ffmpeg -i rtsp://username:password@192.168.1.1/?framerate=30.0?streamprofile=defaultcameraprofile -acodec copy -vcodec copy output_file_name.avi 

  I’d like to do a similar thing from within Python using OpenCV. Currently, I am using VideoCapture class to read in each frame, and then using the OpenCV VideoWriter class to write this frame to a file. My issue is that the VideoWriter class requires a four_cc code to specify which codec is to be used during writing, whereas I don’t want to use any codec at all (or more precisely, I want to use the stream copy of FFmpeg, but there is to my knowledge no corresponding four_cc code). OpenCV documentation specifies that if I use the FFmpeg backend API and specify both a codec and framerate of 0, the raw stream should be written to the new file. However, when I do this, no file is created.

  cap = cv2.VideoCapture("rtsp://username:password@192.168.1.1/?framerate=30.0?streamprofile=defaultcameraprofile", cv2.CAP_FFMPEG)
  
  frame_width = int(cap.get(3))
  
  frame_height = int(cap.get(4))
  
  # output file, backend API, four_cc code integer, framerate, frame size tuple
  
  out = cv2.videoWriter("output_file.avi",cv2.CAP_FFMPEG,0,0,(frame_width,frame_height))

  I have tried many combinations of other input parameters to the videoWriter constructor but all of them either re-encode the stream or do not write an output file. For instance, I have tried nearly every combination of framerate 0,30, output file extension .avi, .mp4, .h264, .mkv, None and codec 0, "H.264", "RAW ", "DBI ", " ", "MPEG", "COPY", "NONE".

  out = cv2.videoWriter("output_file.avi",cv2.CAP_FFMPEG,cv2.VideoWriter_fourcc('H','2','6','4'),30,(frame_width,frame_height))

  Is it possible to use the FFmpeg stream copy within OpenCV to save video data without encoding it ? If not, I will change tact to running shell commands from within Python, but I’d prefer the former approach if feasible.

• How To fix "PHP Fatal error : Class 'ffmpeg_movie' not found" Error in PHP

  19 janvier 2019, par Ajay Katariya

  I have installed FFMPEG in my server for video conversions into different sizes of videos within my WordPress site running on PHP 5.6/Linux. Previously all things were working fine but today suddenly I got one error like :

  "PHP Fatal error : Class ’ffmpeg_movie’ not found".

  PHP Warning : PHP Startup : Unable to load dynamic library ’/opt/cpanel/ea-php56/root/usr/lib64/php/modules/ffmpeg.so’ - /opt/cpanel/ea-php56/root/usr/lib64/php/modules/ffmpeg.so : cannot open shared object file : No such file or directory in Unknown on line 0

  I have searched solution for this error, so I got one solution like include autoload.php file. Which I have already included.

  So can anyone help me to solve out this problem ?