Animated not working when i convert Gif to webp in PHP

Question

I convert animated gif to webp but the webp picture is not animated.

Did I miss a step? I don't find in the documentation.

my code:

//GD
$image = imagecreatefromgif("./mypics.gif");
imagepalettetotruecolor($image);
imagewebp($image, "./image.webp");

//Imagick
$img = new \Imagick("./mypics.gif");
$img->stripImage();
$img->setImageFormat("webp");
$img->setImageAlphaChannel(\imagick::ALPHACHANNEL_ACTIVATE);
$img->setBackgroundColor(new \ImagickPixel('transparent'));
$img->writeImage("./image.webp");

Answer 1

php-vips supports animated web. For example:

// n=-1 means load all pages
// sequential access means decode pixels on demand
$image = Vips\Image::newFromFile('something.gif', [
    'n' => -1,
    'access' => 'sequential'
]); 
$image->writeToFile('something.webp');