rtpdump is a format used by rtptools to record and replay rtp data from network capture.
This page hosts a formal specification of Rtpdump (rtptools) using Kaitai Struct. This specification can be automatically translated into a variety of programming languages to get a parsing library.
# This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild
use strict;
use warnings;
use IO::KaitaiStruct 0.009_000;
use Encode;
use RtpPacket;
########################################################################
package Rtpdump;
our @ISA = 'IO::KaitaiStruct::Struct';
sub from_file {
my ($class, $filename) = @_;
my $fd;
open($fd, '<', $filename) or return undef;
binmode($fd);
return new($class, IO::KaitaiStruct::Stream->new($fd));
}
sub new {
my ($class, $_io, $_parent, $_root) = @_;
my $self = IO::KaitaiStruct::Struct->new($_io);
bless $self, $class;
$self->{_parent} = $_parent;
$self->{_root} = $_root || $self;;
$self->_read();
return $self;
}
sub _read {
my ($self) = @_;
$self->{file_header} = Rtpdump::HeaderT->new($self->{_io}, $self, $self->{_root});
$self->{packets} = ();
while (!$self->{_io}->is_eof()) {
push @{$self->{packets}}, Rtpdump::PacketT->new($self->{_io}, $self, $self->{_root});
}
}
sub file_header {
my ($self) = @_;
return $self->{file_header};
}
sub packets {
my ($self) = @_;
return $self->{packets};
}
########################################################################
package Rtpdump::HeaderT;
our @ISA = 'IO::KaitaiStruct::Struct';
sub from_file {
my ($class, $filename) = @_;
my $fd;
open($fd, '<', $filename) or return undef;
binmode($fd);
return new($class, IO::KaitaiStruct::Stream->new($fd));
}
sub new {
my ($class, $_io, $_parent, $_root) = @_;
my $self = IO::KaitaiStruct::Struct->new($_io);
bless $self, $class;
$self->{_parent} = $_parent;
$self->{_root} = $_root || $self;;
$self->_read();
return $self;
}
sub _read {
my ($self) = @_;
$self->{shebang} = $self->{_io}->read_bytes(12);
$self->{space} = $self->{_io}->read_bytes(1);
$self->{ip} = Encode::decode("ascii", $self->{_io}->read_bytes_term(47, 0, 1, 1));
$self->{port} = Encode::decode("ascii", $self->{_io}->read_bytes_term(10, 0, 1, 1));
$self->{start_sec} = $self->{_io}->read_u4be();
$self->{start_usec} = $self->{_io}->read_u4be();
$self->{ip2} = $self->{_io}->read_u4be();
$self->{port2} = $self->{_io}->read_u2be();
$self->{padding} = $self->{_io}->read_u2be();
}
sub shebang {
my ($self) = @_;
return $self->{shebang};
}
sub space {
my ($self) = @_;
return $self->{space};
}
sub ip {
my ($self) = @_;
return $self->{ip};
}
sub port {
my ($self) = @_;
return $self->{port};
}
sub start_sec {
my ($self) = @_;
return $self->{start_sec};
}
sub start_usec {
my ($self) = @_;
return $self->{start_usec};
}
sub ip2 {
my ($self) = @_;
return $self->{ip2};
}
sub port2 {
my ($self) = @_;
return $self->{port2};
}
sub padding {
my ($self) = @_;
return $self->{padding};
}
########################################################################
package Rtpdump::PacketT;
our @ISA = 'IO::KaitaiStruct::Struct';
sub from_file {
my ($class, $filename) = @_;
my $fd;
open($fd, '<', $filename) or return undef;
binmode($fd);
return new($class, IO::KaitaiStruct::Stream->new($fd));
}
sub new {
my ($class, $_io, $_parent, $_root) = @_;
my $self = IO::KaitaiStruct::Struct->new($_io);
bless $self, $class;
$self->{_parent} = $_parent;
$self->{_root} = $_root || $self;;
$self->_read();
return $self;
}
sub _read {
my ($self) = @_;
$self->{length} = $self->{_io}->read_u2be();
$self->{len_body} = $self->{_io}->read_u2be();
$self->{packet_usec} = $self->{_io}->read_u4be();
$self->{_raw_body} = $self->{_io}->read_bytes($self->len_body());
my $io__raw_body = IO::KaitaiStruct::Stream->new($self->{_raw_body});
$self->{body} = RtpPacket->new($io__raw_body);
}
sub length {
my ($self) = @_;
return $self->{length};
}
sub len_body {
my ($self) = @_;
return $self->{len_body};
}
sub packet_usec {
my ($self) = @_;
return $self->{packet_usec};
}
sub body {
my ($self) = @_;
return $self->{body};
}
sub _raw_body {
my ($self) = @_;
return $self->{_raw_body};
}
1;