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• Checking Video Quality using WP Code, Forminator and FFmpeg is not working [closed]

  3 septembre 2024, par guiliannkamga Guilian90

  I have a WordPress website where users should be able to upload videos. The quality of the videos should be checked upon upload, meaning the videos must have a 16:9 aspect ratio and be in HD. If a video does not meet these conditions, the upload should not be allowed, and the user should be informed of the reason.

  


  I am using the WordPress plugin Forminator for the video upload form and WP Code with a code snippet that contains PHP code. FFmpeg version 4.4.2 is installed on my server.

  


  ffmpeg version

  


  Form to upload a Video

  


  My provider is DreamHost, and I can connect to the server via Terminal on my MacBook and run ffmpeg commands without any issues.

  


  I added the form to a page and when I upload invalid videos, unfortunately, I do not receive any error messages, which should be happening according to my code, and I do not know why.

  


  Uploading the Video

  


  Success Message after uploading the Video

  


  Can someone help me ?

  


  add_filter('forminator_custom_form_submit_before_set_fields', 'forminator_video_validation', 10, 3);

function forminator_video_validation($entry, $form_id, $field_data) {
    foreach ($field_data as $field) {
        if ($field['name'] === 'upload-1') { // 'upload-1' is the ID of the Datei-Upload-Field in Forminator
            $file = $field['value']['file']['file_path'];

            // check if the file exists
            if (!file_exists($file)) {
                wp_die('File does not exist');
            }

            // ffmpeg command to check video size and resolution
            $command = "ffmpeg -i " . escapeshellarg($file) . " 2>&1";
            $output = shell_exec($command);

            // extract resoltion from the ffmpeg output
            if (preg_match('/Stream #0:0.*Video:.* (\d+)x(\d+)/', $output, $matches)) {
                $width = (int) $matches[1];
                $height = (int) $matches[2];
                $aspect_ratio = $width / $height;
                $allowed_aspect_ratio = 16 / 9;
                $min_width = 1280;
                $min_height = 720;

                // check if the video fullfills the criterias
                if ($width < $min_width || $height < $min_height || round($aspect_ratio, 2) != round($allowed_aspect_ratio, 2)) {
                    wp_die('The video must be at least in HD (1280x720) and must have the format 16:9. (Found: ' . $width . 'x' . $height . ')');
                }
            } else {
                // If the video could not be analysed
                wp_die('The Video could not be analysed');
            }
        }
    }
}


  


  PHP Code Snippet in WPCode

  


  WPCode Settings

  


• swscale/range_convert : drop redundant conditionals from arch-specific init functions

  22 septembre 2024, par Ramiro Polla

  swscale/range_convert : drop redundant conditionals from arch-specific init functions
  These conditions are already checked for in the main init function.
  

  • [DH] libswscale/aarch64/swscale.c
  • [DH] libswscale/loongarch/swscale_init_loongarch.c
  • [DH] libswscale/riscv/swscale.c
  • [DH] libswscale/swscale.c
  • [DH] libswscale/x86/swscale.c

• Creating an MP4 video with ffmpeg from timestamped JPEG frames received by pipe

  16 août 2024, par Denis Fevralev

  I need to create a video with following conditions :

  


  

  1. It can only be made from a sequence of JPEG files, each having its timestamp (milliseconds) in the name. The images' durations are not the same, they differ, so i cannot just concat them all and use particular fps

  


  2. There are several tar archives with the images sequences, the archives are kind of huge so I read them from a file storage as an async steam of data and cannot save them on the disk as files. The frames are read and right away put to ffmpeg running process stdin.

  


  3. The images may have different aspect ratios so it's required to make a NxN square and scale the images to fit in with filling the empty space with pads

  


  


  My current solution :

  


  ffmpeg -r $someFpsValue -i - -vf scale=w=$w:h=$h:force_original_aspect_ratio=1,pad=$w:$h:(((ow-iw)/2)):(((oh-ih)/2)) result.mp4


  


  As you can see, it doesn't let me concat the images with correct durations. I know that the concat demuxer can solve the problem of merging images with different durations but seemingly it doesn't work with pipe protocol. I have an idea of evaluating an average fps as (videoFramesCount) / (videoDurationInSeconds) for -r argument, or maybe even counting the fps for each video's second and then getting the avg, but maybe there is a more reliable solution (like some concat demuxer analogue) ?

  


  Thanks in advance :)