how to use video(RGBA) in cocos2d-x?

i have a problem using cocos2d-x make pc game(1280 x 768).

use 3000 png(640 x 384) files(500mb, RGBA). when i made 6 ccanimation(for use backgroundScene).

Can not run the game due to lack of memory.

Perhaps 3000 png file created using video(RGBA), if i will not have enough memory?

in cocos2d-x video(RGBA) playback in any way?

Do I need to solve this problem in any way?

Thanks.