ch.unizh.ini.jaer.projects.opticalflow.io
Class MotionInputStream

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          java.io.DataInputStream
              ch.unizh.ini.jaer.projects.opticalflow.io.MotionInputStream

All Implemented Interfaces:

java.io.Closeable, java.io.DataInput, InputDataFileInterface

public class MotionInputStream
extends java.io.DataInputStream
implements InputDataFileInterface

An input stream of motion data. This class deserializes MotionData from the input stream.

Author:

tobi

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

MotionInputStream(java.io.FileInputStream is)
Creates a new instance of MotionInputStream

Method Summary

float	getFractionalPosition()
java.beans.PropertyChangeSupport	getSupport()
void	mark() mark the current position.
int	position() return position in events
void	position(int n) set position in units of the file, e.g.
MotionData	readData() Reads and deserializes a MotionData object from the input stream
void	rewind() rewind to the start, or to the marked position, if it has been set
void	setFractionalPosition(float frac) Sets fractional position in units of the file
void	setSupport(java.beans.PropertyChangeSupport support)
long	size()
void	unmark() clear any marked position

Methods inherited from class java.io.DataInputStream

read, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, readUTF, skipBytes

Methods inherited from class java.io.FilterInputStream

available, close, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

MotionInputStream

public MotionInputStream(java.io.FileInputStream is)
                  throws java.io.IOException

Creates a new instance of MotionInputStream

Parameters:

is - the input stream

Throws:

java.io.IOException

Method Detail

readData

public MotionData readData()
                    throws java.io.IOException

Reads and deserializes a MotionData object from the input stream

Returns:

the data frame

Throws:

java.io.IOException

getFractionalPosition

public float getFractionalPosition()

Specified by:

getFractionalPosition in interface InputDataFileInterface

Returns:

fractional position in total events

mark

public void mark()
          throws java.io.IOException

Description copied from interface: InputDataFileInterface

mark the current position.

Specified by:

mark in interface InputDataFileInterface

Throws:

java.io.IOException - if there is some error in reading the data

position

public int position()

Description copied from interface: InputDataFileInterface

return position in events

Specified by:

position in interface InputDataFileInterface

position

public void position(int n)

Description copied from interface: InputDataFileInterface

set position in units of the file, e.g. events or frames

Specified by:

position in interface InputDataFileInterface

Parameters:

n - the number to position to

rewind

public void rewind()
            throws java.io.IOException

Description copied from interface: InputDataFileInterface

rewind to the start, or to the marked position, if it has been set

Specified by:

rewind in interface InputDataFileInterface

Throws:

java.io.IOException

setFractionalPosition

public void setFractionalPosition(float frac)

Description copied from interface: InputDataFileInterface

Sets fractional position in units of the file

Specified by:

setFractionalPosition in interface InputDataFileInterface

Parameters:

frac - 0-1 float range, 0 at start, 1 at end

size

public long size()

Specified by:

size in interface InputDataFileInterface

Returns:

size of data file in MotionData units

unmark

public void unmark()

Description copied from interface: InputDataFileInterface

clear any marked position

Specified by:

unmark in interface InputDataFileInterface

getSupport

public java.beans.PropertyChangeSupport getSupport()

setSupport

public void setSupport(java.beans.PropertyChangeSupport support)