IWS II Project - UML Video Lan Streaming Project
Harshavardhan Achrekar- UML00812539
email – [email protected]
Purpose: - To implement Streaming of videos from various UML Servers to the UML Client on
peer to peer basis.
Inspiration: - Alex Presentation on Next Generation of Multimedia Communication on peer to
peer networks through use of meta-data files.
Usage Scenario: -As explained by Alex ,after the client has made a selection on the file to be
played based on the meta data which was presented to the requestor which included a list of
available files on the server from one of its peer on the lan , requestor Client enters into a peer to
peer interaction with the Server module on the Provider end. This is exactly where he will use
my application to view the stored streamed movie in Mjpeg format.
Implementation details: The Server is listening for request for connections on the port it is configured i.e, 2000 in this
case .The client establishes a TCP Connection with the UML Streaming server to exchange
RTSP messages. The Initial state of RTSP is INIT; with READY,FORWARD and PLAYING
being remaining states it can be in. Then we construct a new Datagram Socket to receive RTP
Video data packets from the server, on port RTP_RCV_PORT -25000 in this case.
With RTSP sequence number set to 1 , Client Send SETUP message to the UML Streaming
server and wait for a response “200” to enter into RTSP state of READY. When Play Button
pressed, Client increases the sequence number by 1 , sends a Play Message to Server and waits
for 200 Response. If it receives a response it changes RTSP state to PLAYING. In this process it
starts the timer which handles the function of constructing a Datagram Packet to receive data
from the UDP socket and construct a PacketShaper object from the datapacket received. Then
retrieve data bit stream to get back image in the form of Imageicon. send_RTSP_request() and
parse_server_response() methods within client are used for interacting with the Server.
Now let us consider the Server functionality of the same application. Server creates a socket to
be used to send and receive UDP packets containing the video frames from the client ip address
and the port which it uses to receive UDP data packets. Client creates a buffer to store images to
be send to the client and send starts the timer at the frame rate to send at that rate. The interaction
between client and server has been mention above.
Running the Code: 1. javac StreamMovie.java
2. javac PacketShaper.java
3. javac Server.java
4. javac Client.java
5. java Server
6. java Client
User Interaction Details: 1. Figure below show’s the Server.java program when you initially start it.
• You must run Server.java before running Client.java.
• Change the port number to the desired port and click the “Configure Server port” button
to start the UML Streaming server.
• The “Configure Server port” button will change to “Configures Successfully” and the
UML Streaming server will wait for a UML Video Lan client to connect.
2. Figure below Shows the Server.java program connected to the Client.java program.
3. Figure below Shows the Server.java program while playing the mjpeg movie.
4. Figure below Shows the Server.java program when paused after playing the mjpeg movie
for a certain time.
• The server IP address and port number are shown after Localhost.
• The bar show’s the percentage of video sent to client.
• Various statistics are also displayed(i. e. frame number, packet length, timestamp, etc)
• The Client IP address is also shown.
5. An “Exit Application” from the Client.java program will also close the Server.java
program.
6. Figure below show’s the initial screen that Client.java will start in.
• Server.java must be set to a port number and ready to accept a connection from
Client.java.
• The “Streaming Server Name” box shows the name of the UML machine that
Server.java is running on.
• The “Port” shows the port number used by Server.java.
• The “Video File” shows the file that is going to be displayed by Client.java.
7. Once the settings are set to connect to the UML machine that Server.java is running on
then click on the “Connect” button. The “Connect” button turn into “Connected
Successfully” when a connection to the server has been made.
8. Figure below shows Client.java correctly connected to Server.java and playing a movie.
• “Play Video” tells Server.java to jump into the play state to start playing the movie.
• “Pause Video” pause’s the video.
• “Exit Application” closes Client.java and Server.java applications.
• When a movie is playing it will display “PLAYING” in the lower Status Statistics
Section of the application window representing the state of Server.java.
• “Transmission Rate” is the total amount of packet size divided by the timestamp.
• “Burst Rate” is the current packet size divided by the timestamp.
Conclusion: - The implementation of Streaming Application was deployed and tested on UML
Computer Science Network and was found to be functional. Multiple Connection were made to
the UML Streaming Server on Different Ports from Various Client Programs and video
streaming was tested.
Codes path :- The implemented Project along with its documentation can be found at Website:
http://www.cs.uml.edu/~hachreka/514_s2007/Project