edu.virginia.cs.mng.hypercast.demo
Class MediaStreamer

java.lang.Object
  |
  +--edu.virginia.cs.mng.hypercast.demo.MediaStreamer

public class MediaStreamer

extends java.lang.Object

The MediaStreamer class multicasts media file(s) to a multicast overlay running on Hypercast overlay topology.

Field Summary

private float	bitRate
private static int	DEFAULT_BITRATE Default streaming bitrate
private java.lang.String	fileName
private int	fileSeq
private int	loopNum
private static int	MAX_BITRATE Default maxium bitrate
private java.util.Hashtable	mediaFileMap This is for sending multipul media files
private static int	MIN_BITRATE Default minimum bitrate
private static int	READBUFFERSIZE Default reading buffer size
private static int	WAIT_TIME_TO_START Default WAIT_TIME_TO_START
private int	waitTimeToStart

Constructor Summary

(package private)

MediaStreamer()

Method Summary

static void	main(java.lang.String[] args)
boolean	sendFile(java.lang.String fname, float brate, I_OverlaySocket sock) Send a file to the multicast overlay
long	sleepTimeFromBitrate(float brate, int sendbuffersize) Calculate sleep time between sending packages from a given bitrate
void	start(java.lang.String[] args) Start MediaStreamer.

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait

Field Detail

DEFAULT_BITRATE

private static int DEFAULT_BITRATE

Default streaming bitrate

READBUFFERSIZE

private static int READBUFFERSIZE

Default reading buffer size

MIN_BITRATE

private static int MIN_BITRATE

Default minimum bitrate

MAX_BITRATE

private static int MAX_BITRATE

Default maxium bitrate

WAIT_TIME_TO_START

private static int WAIT_TIME_TO_START

Default WAIT_TIME_TO_START

waitTimeToStart

private int waitTimeToStart

mediaFileMap

private java.util.Hashtable mediaFileMap

This is for sending multipul media files

fileSeq

private int fileSeq

fileName

private java.lang.String fileName

bitRate

private float bitRate

loopNum

private int loopNum

Constructor Detail

MediaStreamer

MediaStreamer()

Method Detail

main

public static void main(java.lang.String[] args)

start

public void start(java.lang.String[] args)

Start MediaStreamer.

sleepTimeFromBitrate

public long sleepTimeFromBitrate(float brate,
                                 int sendbuffersize)

Calculate sleep time between sending packages from a given bitrate

Parameters:

brate - sending bitrate

sendbuffersize - the size of the buffer which holds outgoing stream

Returns:

sleep time between

sendFile

public boolean sendFile(java.lang.String fname,
                        float brate,
                        I_OverlaySocket sock)

Send a file to the multicast overlay

Parameters:

fname - the name of the media file

brate - the sending bitrate in kbits/s

sock - the outgoing socket