Converting an animated gif to webp with QImage::save does not preserve the animation.

I have been trying to convert all my image formats to webp in my application in order to save space.

When I convert animated gifs to webp, which also supports animations, the conversion produces a still image:

	QImage image("image.gif"); // 60 frames
	QBuffer buffer;
	{
		image.save( "image.webp" );
	}
	QImageReader imageReader( "image.webp" );
	{
		imageReader.setDecideFormatFromContent(true);
	}
	qDebug() << imageReader.imageCount(); // Produces 1 instead of 60

I would expect that animated gifs converted in QImage, would preserve the animation, or there would be an obvious way to do this in some other way.