VoDUDPServer

simple module

This module models the transmission of a video-on-demand (VoD) stream over UDP. The input is taken from a specified trace file, representing a video encoded according to the Scalable Video Coding (SVC) standard. Each line of the trace file defines the size and transmission time of a video frame.

Inheritance diagram

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Parameters

Name	Type	Default value	Description
localPort	int		port to listen on
vod_trace_file	string
fps	int	25
traceType	string	"SVC"	"Scalable Video Coding" (from MPEG4?) -- only format implemented
destAddresses	object	[]	clients parameters
destPort	int
clientsStartStreamTime	double	0s
clientsReqTime	object	[]
startTime	double	0s
tos	int	-1	if not -1, set the Type Of Service (IPv4) / Traffic Class (IPv6) field of sent packets to this value

Properties

Name	Value	Description
display	i=block/app

Gates

Name	Direction	Size	Description
socketIn	input
socketOut	output

Source code

//
// This module models the transmission of a video-on-demand (VoD) stream over UDP.
// The input is taken from a specified trace file, representing a video encoded
// according to the Scalable Video Coding (SVC) standard. Each line of the trace file defines
// the size and transmission time of a video frame.
//
simple VoDUDPServer like IApp
{
    parameters:
        int localPort; // port to listen on
        string vod_trace_file;
        int fps = default(25);
        string traceType = default("SVC");  // "Scalable Video Coding" (from MPEG4?) -- only format implemented

        // clients parameters
        object destAddresses = default([]);
        int destPort;
        volatile double clientsStartStreamTime @unit(s) = default(0s);
        object clientsReqTime @unit(s) = default([]);
        double startTime @unit(s) = default(0s);
        int tos = default(-1); // if not -1, set the Type Of Service (IPv4) / Traffic Class (IPv6) field of sent packets to this value

        @display("i=block/app");
    gates:
        input socketIn @labels(UdpControlInfo/up);
        output socketOut @labels(UdpControlInfo/down);
}

File: src/apps/vod/VoDUDPServer.ned