Knowledge Base

create_random_video()

Description

Generate a random video which can be used during testing (e.g to upload, or create previews for)

- duration (default: 5 seconds)
- width (default: 300)
- height (default: 300)
- filename (default: random)
- extension (default: mp4)
- text -> Video content text (optional)

Parameters

Column	Type	Default	Description
$info:	array
$info	array		Set video parameters:

Return

array

Returns an "error" key if something went wrong, otherwise provides some useful info (e.g path)

Location

include/test_functions.php lines 83 to 147

Definition

 
function create_random_video(array $info): array
    {
    $duration = $info['duration'] ?? 5;
    $width = $info['width'] ?? 300;
    $height = $info['height'] ?? 300;
    $filename = $info['filename'] ?? generateSecureKey(32);
    $extension = $info['extension'] ?? 'mp4';
    if (is_banned_extension($extension)) {
        $extension = 'mp4';
    }

    $ffmpeg = get_utility_path('ffmpeg');
    if ($ffmpeg !== false && in_array($extension, $GLOBALS['ffmpeg_supported_extensions']))
        {
        // Add text to video only if supported
        if (isset($info['text']) && mb_strpos(run_command($ffmpeg, true), '--enable-libfontconfig') !== false)
            {
            $cmd_vf = '-vf drawtext=text=%info_text'
                    . ":font='Times New Roman':fontsize=10:fontcolor=black:box=1:boxcolor=white:boxborderw=5";
            $cmd_vf_params = [
                '%info_text' => new CommandPlaceholderArg(
                    $info['text'],
                    fn($val): bool => preg_match('/^[a-zA-Z0-9\#\s]*$/', $val) === 1
                ),
            ];
            }
        else
            {
            $cmd_vf = '';
            $cmd_vf_params = [];
            }

        // Create video file
        $path = get_temp_dir() . DIRECTORY_SEPARATOR . safe_file_name($filename) . ".{$extension}";
        $cmd_output = run_command(
            "$ffmpeg -i testsrc=duration=%duration:size=%wx%h:rate=30 $cmd_vf %outfile",
            true,
            array_merge(
                [
                    '%duration' => (int) $duration,
                    '%w' => (int) $width,
                    '%h' => (int) $height,
                    '%outfile' => new CommandPlaceholderArg($path, fn(): bool => true),
                ]
                ,
                $cmd_vf_params
            )
        );

        if (mb_strpos($cmd_output, ' Error ') !== false)
            {
            return [
                'error' => $cmd_output,
            ];
            }

        return [
            'path' => $path,
        ];
        }

    return [
        'error' => 'FFMpeg missing',
    ];
    }


This article was last updated 26th July 2024 21:35 Europe/London time based on the source file dated 22nd May 2024 17:25 Europe/London time.