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Man Pages


Manual Reference Pages  -  NET::RTP (3)

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NAME

Net::RTP - Send and receive RTP packets (RFC3550)

CONTENTS

SYNOPSIS



  use Net::RTP;

  my $rtp = new Net::RTP( LocalPort=>5170, LocalAddr=>233.122.227.171 );
 
  my $packet = $rtp->recv();
  print "Payload type: ".$packet->payload_type()."\n";



DESCRIPTION

The Net::RTP module subclasses IO::Socket::Multicast6 to enable you to manipulate multicast groups. The multicast additions are optional, so you may also send and recieve unicast packets.
$rtp = new Net::RTP( [LocalAdrr=>$addr, LocalPort=>$port,...] ) The new() method is the constructor for the Net::RTP class. It takes the same arguments as IO::Socket::INET, however the <B>ProtoB> argument defaults to udp, which is more appropriate for RTP.

The Net::RTP super-class used will depend on what is available on your system it will try and use one of the following (in order of preference) :



        IO::Socket::Multicast6 (IPv4 and IPv6 unicast and multicast)
        IO::Socket::Multicast (IPv4 unicast and multicast)
        IO::Socket::INET6 (IPv4 and IPv6 unicast)
        IO::Socket::INET (IPv4 unicast)



If LocalAddr looks like a multicast address, then Net::RTP will automatically try and join that multicast group for you.

my $packet = $rtp->recv( [$size] ) Blocks and waits for an RTP packet to arrive on the UDP socket. The read $size defaults to 2048 which is usually big enough to read an entire RTP packet (as it is advisable that packets are less than the Ethernet MTU).

Returns a Net::RTP::Packet object or <B>undefB> if there is a problem.

$rtp->send( $packet ) Send a Net::RTP::Packet from out of the RTP socket. The <B>PeerPortB> and <B>PeerAddrB> should be defined in order to send packets. Returns the number of bytes sent, or the undefined value if there is an error.
$rtp->superclass() Returns the name of the super-class that Net::RTP chose to use.

SEE ALSO

Net::RTP::Packet

IO::Socket::Multicast6

IO::Socket::INET6

IO::Socket::Multicast

IO::Socket::INET

<http://www.ietf.org/rfc/rfc3550.txt>

BUGS

Please report any bugs or feature requests to bug-net-rtp@rt.cpan.org, or through the web interface at <http://rt.cpan.org>. I will be notified, and then you will automatically be notified of progress on your bug as I make changes.

AUTHOR

Nicholas J Humfrey, njh@cpan.org

COPYRIGHT AND LICENSE

Copyright (C) 2006 University of Southampton

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.005 or, at your option, any later version of Perl 5 you may have available.

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perl v5.20.3 NET::RTP (3) 2016-04-03

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