my ipod touch 4s won't turn on, reset, charge, and computer won't recognize it

i was watching videos with my ipod. After a while i realized that my ipod was almost dead on power so when i was about to charge it, it turned off. i turned on and charged it and then i left it charging. when i came back my ipod was off and now it won't turn on even if i reset it or charge it from my pc. help!