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

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.MediaHeaderBox

public class MediaHeaderBox
extends FullBox

8.4.2.1 Definition

• Box Type: �?mdhd’
• Container: Media Box (�?mdia’)
• Mandatory: Yes
• Quantity: Exactly one

The media header declares overall information that is media-independent, and relevant to characteristics of the media in a track.

Author:

kulikov, amit bhayani

Field Summary

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

bytetoTypeMap

Constructor Summary

MediaHeaderBox(long size)

Method Summary

java.util.Date	getCreationTime() Gets the creation time of the media in this track.
long	getDuration() Gets duration of the media in this track.
int	getLanguage()
java.util.Date	getModificationTime() Gets the modification time of the media in this track.
long	getTimescale() Gets the time scale of the media in this track.
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

MediaHeaderBox

public MediaHeaderBox(long size)

Method Detail

getCreationTime

public java.util.Date getCreationTime()

Gets the creation time of the media in this track.

Returns:

creation time

getModificationTime

public java.util.Date getModificationTime()

Gets the modification time of the media in this track.

Returns:

creation time

getDuration

public long getDuration()

Gets duration of the media in this track.

Returns:

an integer that declares length of the media in this track (in the indicated timescale).

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.

getTimescale

public long getTimescale()

Gets the time scale of the media in this track.

Returns:

the number of time units that pass in one second. For example, a time coordinate system that measures time in sixtieths of a second has a time scale of 60.

getLanguage

public int getLanguage()