How to turn a square video into a round one?

Question

PHP

Connoisseurs of the telegram bot, tell me how to make a round video from a square video ???

function send_message($method, $params, $headers = [] ){
  
  $url = 'https://api.telegram.org/bot' . TOKEN . '/' . $method;
  // Отправить сообщение	
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_POST, true);
  curl_setopt($ch, CURLOPT_HEADER, false);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_URL, $url);	
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);  	
    curl_setopt($ch, CURLOPT_POSTFIELDS, $params); 	
    curl_setopt($ch, CURLOPT_HTTPHEADER, array_merge(array("Content-Type:multipart/form-data"), $headers));	
    $result = curl_exec($ch);
    curl_close($ch);
    return (json_decode($result, true) ? json_decode($result, true) : $result);
}

  $path = $site."/bot/video/video1.mp4";
  
  $file_id = "DQACAgIAAxkBAAIBMV_bLnunyi1vlMqDiSkH6FKHIiixAAI_CwACdud4Sq4xIK6CuC5eHgQ";
  
  # Формируем массив для отправления в телеграм
  $out = send_message('sendVideoNote', [chat_id' => $chat_id,
                     //'video_note' => $file_id ]);
                       'video_note' => new CURLFile(realpath($path))]);

Answer 1

In any case, the video is square (rectangular).
Telegram itself adds round frames if it sees that it is VideoNote.
If you download the original of any such video, you will see that it is square. As an example, download any video from https://t.me/StikStok and see for yourself