func ListenMulticastUDP(group string, pids ...int16) (ts.PktReader, error) {
var interf string
if n := strings.IndexByte(group, '@'); n >= 0 {
interf = group[n+1:]
group = group[:n]
}
gaddr, err := net.ResolveUDPAddr("udp", group)
if err != nil {
return nil, err
}
if !gaddr.IP.IsMulticast() {
return nil, ErrNotMulticast
}
ifi, err := net.InterfaceByName(interf)
if err != nil {
return nil, err
}
c, err := net.ListenMulticastUDP("udp", ifi, gaddr)
if err != nil {
return nil, err
}
err = c.SetReadBuffer(2 * 1024 * 1024)
if err != nil {
return nil, err
}
return &PidFilter{
r: ts.NewPktPktReader(c, make([]byte, 7*ts.PktLen)),
pids: pids,
}, nil
}
func ListenUDP(laddr string, pids ...int16) (ts.PktReader, error) {
la, err := net.ResolveUDPAddr("udp", laddr)
if err != nil {
return nil, err
}
c, err := net.ListenUDP("udp", la)
if err != nil {
return nil, err
}
err = c.SetReadBuffer(2 * 1024 * 1024)
if err != nil {
return nil, err
}
return &PidFilter{
r: ts.NewPktPktReader(c, make([]byte, 7*ts.PktLen)),
pids: pids,
}, nil
}