org.mobicents.media.server.impl.resource.mediaplayer.mpeg
Class CompositionOffsetBox

java.lang.Object
  org.mobicents.media.server.impl.resource.mediaplayer.mpeg.Box
      org.mobicents.media.server.impl.resource.mediaplayer.mpeg.FullBox
          org.mobicents.media.server.impl.resource.mediaplayer.mpeg.CompositionOffsetBox

public class CompositionOffsetBox
extends FullBox

8.6.1.3.1 Definition

• Box Type: �?ctts’
• Container: SampleTableBox (�?stbl’)
• Mandatory: No
• Quantity: Zero or one

This box provides the offset between decoding time and composition time. Since decoding time must be less than the composition time, the offsets are expressed as unsigned numbers such that CT(n) = DT(n) + CTTS(n) where CTTS(n) is the (uncompressed) table entry for sample n.

The composition time to sample table is optional and must only be present if DT and CT differ for any samples. Hint tracks do not use this box.

Author:

amit bhayani

Field Summary

Fields inherited from class org.mobicents.media.server.impl.resource.mediaplayer.mpeg.Box

bytetoTypeMap

Constructor Summary

CompositionOffsetBox(long size)

Method Summary

long[]	getSampleCount()
long[]	getSampleOffset()
protected int	load(java.io.DataInputStream fin) Loads Box from stream.

Methods inherited from class org.mobicents.media.server.impl.resource.mediaplayer.mpeg.FullBox

getFlags, getVersion, read64

Methods inherited from class org.mobicents.media.server.impl.resource.mediaplayer.mpeg.Box

comparebytes, getSize, getType, read, read16, read24, read32, readFixedPoint1616, readText, readType, readU32, readU64

Methods inherited from class java.lang.Object

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

Constructor Detail

CompositionOffsetBox

public CompositionOffsetBox(long size)

Method Detail

load

protected int load(java.io.DataInputStream fin)
            throws java.io.IOException

Description copied from class: Box

Loads Box from stream.

Overrides:

load in class FullBox

Parameters:

fin - the stream to load box from

Returns:

the number of bytes readed from stream; *

Throws:

java.io.IOException - if some I/O error occured.

getSampleCount

public long[] getSampleCount()

getSampleOffset

public long[] getSampleOffset()