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Net-HDFuture

LIVE HD TV over the web, HD movies online streaming

NGN technologies

What do we have at present? YouTube - Videos in HD quality Few another sites with more or less same

technology No streaming online

Problems? Internet bandwidth doesn’t suit the needs 720p HD live video stream needs ~2.5Mbit/sec Average connection speed is about ~2.0Mbit/sec Time - we don’t want to waste it in eternal waiting Online movies in HD quality?

Net-HDGlobal Goal of the projectHD Streaming over the web w/o changing bandwidth

Secondary GoalsDevelopment of prototype of software for experimental purposesServer/Client based applicationManager application for multiple Clients Half-Real Time VOD streaming experiments

Basic structure of application:

Net-HD

Manager Client/screate

s Serverrequest

1. Manager starts2. Manager creates instances of Clients3. Clients send a movie requests with specified

parameters4. Server finds requested references5. Server returns demanded movie

stream

Global Networking

communication

Net-HDTutorial: Introduction

To run this project requires NetBeans and VS IDE’s It also requires a dom4j.jar as external library Basic entities are:

Client – Java implemented Server – C# implemented Client Manager – Java implemented

This presentation explains uses and implementation of Client and Client Manager

This presentation uses screenshots of NetBeans IDE

Tutorial: Client

Main form

Net-HD

URL – link to movie Control options Log for Data Transfer Observation Hides this form (means it is still working when hidden) frame from which movie will be played(represents time) Edit option for this instance of client

Address of server Port of the server for client to connect

Net-HDTutorial: Manager

Main Form General Form

URL – link to movie checkbox Random URL option from created earlier list – checkbox Select randomly specified number of Clients Choose a command from the drop list for all of the selected Clients Execute chosen command for selected Clients Load and run XML file with scenario Opens Form of selected Client Log Textbox and Show/Clear options for current session log

Net-HDTutorial: Manager

Main Form Editing server settings

Set server IP address Set port through which Clients connect to server

Net-HDTutorial: Manager

Main Form Editing server settings

Open a list of URL’s from text file Save existing URL list to text file

2) Enter number of Clients

3) Choose one of the options :

b)Delete existing Client & add new one

4 )To view list of created Clients :

Press drop list

1) Press EDIT then NetHD CLIENT

a)Add new Client

Net-HDTutorial: Manager

Main Form Creation of multiple Clients

1) Press “Edit” then “URLs list”2) In next form add a link of URL3) In the “logs” window possible to

use that the URL added successfully

4) To see the added URLs press dropped list.

Net-HDTutorial: Manager

Main Form Editing URL list

Cengine – class that contains all logical functions

Cgui – class that responsible for graphical interface

Cmain – Start point for GUI

Cnetwork – class that is responsible for networking components

Cscreen – represents log box with data shown during transmission

Cvideo – class that responsible converting data to video file

RandomGUID – class that generates a unique ID for Client instance

SetingsGUI – Graphical form for setting “Host” and “Port”

Net-HDPackages explanation -

basics Client

Net-HDPackages explanation -

basics Log MainLogHD– data structure that remembers all events with application

MainFrame – basic start point for the project, brings up a screen

EditNetHDClientsWindow – Graphic window that responsible of creating new Client

EditURLslistWindow – Graphic windows for adding URLs links

FileManager – Graphic window for file chooser

Mengine - class that contains all logical functions of manager

Mgui – Graphic window of manager

Mmain - Start point for GUI

NetHDServerSetingsWindow - Graphical form for setting “Host” and “Port” of server.

Net-HDPackages explanation -

basics Manager

Net-HDCode explanation -

basics Client

Main functionsPlay pressed: Cgui.Class called Methods invoked in order of appearance

1. Cengine.setFrame(frame) Sets current Client offset frame from which movie will

starts2. Cengine.Play(URL)

Cnetwork.connect() - Connects to server Cnetwork.setMessage(msg) – Prepares a message for a

server Cnetwork.GetVideoStream() - Gets video from server

for this instance of Client

Net-HDCode explanation -

basics Client

Main functionsPause pressed: Cgui.Class called Methods invoked in order of appearance

1. Cengine.pauseSave() Sets flag request to status REPEATED Cengine.pauseTime() – saves time when movie stopped Cengine.getLastPackage() – saves last package to

restore point

Net-HDCode explanation -

basics Client

Main functionsStop pressed: Cgui.Class called Methods invoked in order of appearance

1. Cengine.Stop() If Client was receiving data then Cnetwork.sendMessage(stop) – message with “stop”

sent to server Cnetwork.disconnect() – kills connection with the

server

Net-HDCode explanation -

basics Manager

Main functionsScenario Execute pressed: Mgui.Class called Methods invoked in order of appearance

1. Mengine.scenarioExecute() Function trys to read from XML file If successfully then program executes scenario

Net-HDManager

Main function :This Manager created for manage Clients.

Execute button pressed :

_engine.setURL(); - take urls links Checking one of two options :1) _engine.selectFirstsClients(Take “All” clients); or 2) _engine.selectFirstsClients(Take num of client);

LogHD.addLog(); - add information to “Information vector - LogHD”. this.setLog(); – print all changes on screen log.

Net-HDManager

Main function :This Manager created for manage Clients.

_engine.executeSelected(take info from Comand ComboBox) { this function have Switch for 3 options : PLAY,

STOP ,PAUSE.

checking on of two options : Random or No Creat new Client ; client.SetNetHDserver(_host, _port); - set host & port data for client whos took from Server Settings

client.start(); - start new Thread/ Client with all describe data.

}