Default sending video in whatsapp bad video

hello,

i think it must be published but i havent seen any resolution to it.

my cousin is trying to send videos over whatsapp, but it results in bad video in the receiver. i thought it was the proble of mtk (movile is mi note with mtk 6892) but another friend has an iocean x7s with same chipset and it works in its mobile, so i am thinking in libraries or other thing .... so ... if someone can help me, i would be gratefull.

it is not a question of rate in video, i mean, the same video on both mobiles, one (x7s) sends ok, and another no. so it must be another thing, i dont know. any library???? thinking in armeabi or armeabi-v7a?????