net.sourceforge.jaad.mp4.boxes.impl.fd

Class FDSessionGroupBox

java.lang.Object

net.sourceforge.jaad.mp4.boxes.BoxImpl

net.sourceforge.jaad.mp4.boxes.FullBox

net.sourceforge.jaad.mp4.boxes.impl.fd.FDSessionGroupBox

All Implemented Interfaces:

Box

public class FDSessionGroupBox
extends FullBox

The FD session group box is optional, although it is mandatory for files containing more than one FD hint track. It contains a list of sessions as well as all file groups and hint tracks that belong to each session. An FD session sends simultaneously over all FD hint tracks (channels) that are listed in the FD session group box for a particular FD session. Only one session group should be processed at any time. The first listed hint track in a session group specifies the base channel. If the server has no preference between the session groups, the default choice should be the first session group. The group IDs of all file groups containing the files referenced by the hint tracks shall be included in the list of file groups. The file group IDs can in turn be translated into file group names (using the group ID to name box) that can be included by the server in FDTs.

Field Summary

Fields inherited from class net.sourceforge.jaad.mp4.boxes.FullBox

flags, version

Fields inherited from class net.sourceforge.jaad.mp4.boxes.BoxImpl

children, offset, parent, size, type

Constructor Summary

Constructors

Constructor and Description
FDSessionGroupBox()

Method Summary

Methods

Modifier and Type	Method and Description
void	decode(MP4InputStream in) Decodes the given input stream by reading this box and all of its children (if any).
long[][]	getGroupIDs() A group ID indicates a file group that the session group complies with.
long[][]	getHintTrackIDs() A hint track ID specifies the track ID of the FD hint track belonging to a particular session group.

Methods inherited from class net.sourceforge.jaad.mp4.boxes.BoxImpl

getChild, getChildren, getChildren, getLeft, getName, getOffset, getParent, getSize, getType, hasChild, hasChildren, readChildren, readChildren, setParams, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

FDSessionGroupBox

public FDSessionGroupBox()

Method Detail

decode

public void decode(MP4InputStream in)
            throws java.io.IOException

Description copied from class: BoxImpl

Decodes the given input stream by reading this box and all of its children (if any).

Overrides:

decode in class FullBox

Parameters:

in - an input stream

Throws:

java.io.IOException - if an error occurs while reading

getGroupIDs

public long[][] getGroupIDs()

A group ID indicates a file group that the session group complies with.

Returns:

all group IDs for all session groups

getHintTrackIDs

public long[][] getHintTrackIDs()

A hint track ID specifies the track ID of the FD hint track belonging to a particular session group. Note that one FD hint track corresponds to one LCT channel.

Returns:

all hint track IDs for all session groups