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

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

public class VideoIndex

extends java.lang.Object

Indexes the Groups of Pictures within a Video Sequence.

Field Summary

static int

MAGIC_NUMBER

Constructor Summary

VideoIndex(VideoDecoder videoDecoder)

Method Summary

void	addGroupOfPictures(long startPosition, int numPictures, int sequenceHeader)
void	addSequenceHeader(SequenceHeader sequenceHeader)
void	complete()
int	getBitRate()
void	getFirstSequenceHeader()
int	getFrameHeight()
float	getFrameRate()
int	getFrameWidth()
int	getGroupOfPicturesNumberForFrame(int frame) Gets the group of pictures for the given frame
edu.umd.cfar.lamp.mpeg1.video.IndexerState	getIndexerState()
int[][]	getIntraQuantizerMatrix(int frame)
int	getLastIOrPFrame(int n)
int	getLastSequenceHeader()
int	getMbWidth(int frame)
int[][]	getNonIntraQuantizerMatrix(int frame)
int	getNumFrames()
byte	getPictureCodingTypeOfFrame(int n)
PelAspectRatio	getPixelAspectRatio()
long	getPositionOfFrame(int n)
SequenceHeader	getSequenceHeader(int frame)
int	getStartFrame(int groupOfPicturesNumber)
long	getStartPosition(int groupOfPicturesNumber)
VideoDecoder	getVideoDecoder()
VideoSource	getVideoSource()
void	index()
boolean	indexed()
void	readIndex(java.io.DataInput in)
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

Field Detail

MAGIC_NUMBER

public static int MAGIC_NUMBER

Constructor Detail

VideoIndex

public VideoIndex(VideoDecoder videoDecoder)

Method Detail

getLastSequenceHeader

public int getLastSequenceHeader()

writeIndex

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

Throws:

java.io.IOException

MpegException

readIndex

public void readIndex(java.io.DataInput in)
               throws java.io.IOException,
                      MpegException

Throws:

java.io.IOException

MpegException

complete

public void complete()

getVideoDecoder

public VideoDecoder getVideoDecoder()

getVideoSource

public VideoSource getVideoSource()

getIndexerState

public edu.umd.cfar.lamp.mpeg1.video.IndexerState getIndexerState()

getMbWidth

public int getMbWidth(int frame)
               throws java.io.IOException,
                      MpegException

Throws:

java.io.IOException

MpegException

getIntraQuantizerMatrix

public int[][] getIntraQuantizerMatrix(int frame)
                                throws java.io.IOException,
                                       MpegException

Throws:

java.io.IOException

MpegException

getNonIntraQuantizerMatrix

public int[][] getNonIntraQuantizerMatrix(int frame)
                                   throws java.io.IOException,
                                          MpegException

Throws:

java.io.IOException

MpegException

index

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

Throws:

java.io.IOException

MpegException

indexed

public boolean indexed()

getFirstSequenceHeader

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

Throws:

java.io.IOException

MpegException

getSequenceHeader

public SequenceHeader getSequenceHeader(int frame)
                                 throws java.io.IOException,
                                        MpegException

Throws:

java.io.IOException

MpegException

addSequenceHeader

public void addSequenceHeader(SequenceHeader sequenceHeader)
                       throws java.io.IOException,
                              MpegException

Throws:

java.io.IOException

MpegException

addGroupOfPictures

public void addGroupOfPictures(long startPosition,
                               int numPictures,
                               int sequenceHeader)
                        throws java.io.IOException,
                               MpegException

Throws:

java.io.IOException

MpegException

getFrameWidth

public int getFrameWidth()
                  throws java.io.IOException,
                         MpegException

Throws:

java.io.IOException

MpegException

getFrameHeight

public int getFrameHeight()
                   throws java.io.IOException,
                          MpegException

Throws:

java.io.IOException

MpegException

getBitRate

public int getBitRate()
               throws java.io.IOException,
                      MpegException

Throws:

java.io.IOException

MpegException

getPixelAspectRatio

public PelAspectRatio getPixelAspectRatio()
                                   throws java.io.IOException,
                                          MpegException

Throws:

java.io.IOException

MpegException

getFrameRate

public float getFrameRate()
                   throws java.io.IOException,
                          MpegException

Throws:

java.io.IOException

MpegException

getGroupOfPicturesNumberForFrame

public int getGroupOfPicturesNumberForFrame(int frame)
                                     throws FrameNotFoundException

Gets the group of pictures for the given frame

Parameters:

frame - the frame

Returns:

0-based number of the Group Of Pictures containing the given (0-based) frame.

Throws:

FrameNotFoundException

getStartPosition

public long getStartPosition(int groupOfPicturesNumber)

getStartFrame

public int getStartFrame(int groupOfPicturesNumber)

getNumFrames

public int getNumFrames()

getPositionOfFrame

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

Throws:

java.io.IOException

MpegException

getLastIOrPFrame

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

Throws:

java.io.IOException

MpegException

getPictureCodingTypeOfFrame

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

Throws:

java.io.IOException

MpegException

toString

public java.lang.String toString()