MCMETA animated texture

I am having some problem with making animated texture for my mod. I made a json model of tv and i want to make an animated screen using mcmeta file. But when i place the mcmeta in texture folder after ecporting the mod and load the game the screen of the tv comes squashed like i made 2048x10240 texture for animation and all of it comes all together on screen. How can I solve it please tell