Load a WEBP animation directly.
IMG_Animation * IMG_LoadWEBPAnimation_RW(SDL_RWops *src);
an SDL_RWops that data will be read from.
Returns a new IMG_Animation, or NULL on error.
If you know you definitely have a WEBP image, you can call this function, which will skip SDL_image's file format detection routines. Generally it's better to use the abstract interfaces; also, there is only an SDL_RWops interface available here.
This function is available since SDL_image 2.6.0.