修复对AudioCore duration的计算
修复对AudioCore duration的计算

wangjun/muplayer,Baidu-Music-FE/muplayer,Denniskevin/muplayer,Baidu-Music-FE/muplayer,fengyapeng/muplayer,wangjun/muplayer,Denniskevin/muplayer,sdgdsffdsfff/muplayer,sdgdsffdsfff/muplayer,fengyapeng/muplayer,cnbin/muplayer,cnbin/muplayer