fn seek(&mut self, time: u64) -> bool {
let ret = self.demuxer.seek(NATimePoint::Milliseconds(time));
if ret.is_err() { println!(" seek error\n"); }
fn seek(&mut self, time: u64) -> bool {
let ret = self.demuxer.seek(NATimePoint::Milliseconds(time));
if ret.is_err() { println!(" seek error\n"); }