edu.umd.cfar.lamp.mpeg1.video
Class VideoIndexElement

java.lang.Object
  edu.umd.cfar.lamp.mpeg1.video.VideoIndexElement

All Implemented Interfaces:

java.lang.Comparable

public class VideoIndexElement

extends java.lang.Object

implements java.lang.Comparable

Represents one Group of Pictures within a VideoIndex.

Constructor Summary

VideoIndexElement(long startPosition, int startPicture, int numPictures, int sequenceHeader, VideoIndex videoIndex)

Method Summary

int	compareTo(java.lang.Object o)
boolean	containsPicture(int picture)
int	findPicture(int picture)
int	getLastIOrPPicture(int n)
int	getLastPicture()
int	getNumPictures()
byte	getPictureCodingTypeOfPicture(int n)
long	getPositionOfPicture(int n)
int	getSequenceHeader()
int	getStartPicture()
long	getStartPosition()
boolean	gopIndexed()
void	indexGop()
java.lang.String	toString()
void	writeIndex(java.io.DataOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

VideoIndexElement

public VideoIndexElement(long startPosition,
                         int startPicture,
                         int numPictures,
                         int sequenceHeader,
                         VideoIndex videoIndex)
                  throws java.io.IOException,
                         MpegException

Method Detail

writeIndex

public void writeIndex(java.io.DataOutput out)
                throws java.io.IOException

Throws:

java.io.IOException

compareTo

public int compareTo(java.lang.Object o)

Specified by:

compareTo in interface java.lang.Comparable

containsPicture

public boolean containsPicture(int picture)

findPicture

public int findPicture(int picture)

toString

public java.lang.String toString()

getStartPosition

public long getStartPosition()

getStartPicture

public int getStartPicture()

getNumPictures

public int getNumPictures()

getLastPicture

public int getLastPicture()

getSequenceHeader

public int getSequenceHeader()

gopIndexed

public boolean gopIndexed()

indexGop

public void indexGop()
              throws java.io.IOException,
                     MpegException

Throws:

java.io.IOException

MpegException

getPositionOfPicture

public long getPositionOfPicture(int n)
                          throws java.io.IOException,
                                 MpegException

Parameters:

n - the frame

Returns:

the byte position (in the video stream) of the (zero-based) nth picture (frame).

Throws:

java.io.IOException

MpegException

getLastIOrPPicture

public int getLastIOrPPicture(int n)
                       throws java.io.IOException,
                              MpegException

Throws:

java.io.IOException

MpegException

getPictureCodingTypeOfPicture

public byte getPictureCodingTypeOfPicture(int n)
                                   throws java.io.IOException,
                                          MpegException

Throws:

java.io.IOException

MpegException