Maven module :un.storage : media-mpeg4 :
Class : un.storage.media.mp4.boxes.impl.MovieHeaderBox
Extends/Implements : un.storage.media.mp4.boxes.FullBox
Subclasses : -

The movie header box defines overall information which is media-independent,
and relevant to the entire presentation considered as a whole.
author  Alexander Simm

Variables : -
Functions : MovieHeaderBox, decode, getCreationTime, getModificationTime, getTimeScale, getDuration, getRate, getVolume, getTransformationMatrix, getNextTrackID

public void MovieHeaderBox ()

public void decode (MP4InputStream in)


The creation time is an integer that declares the creation time of the
presentation in seconds since midnight, Jan. 1, 1904, in UTC time.
return  the creation time
public long getCreationTime ()


The modification time is an integer that declares the most recent time
the presentation was modified in seconds since midnight, Jan. 1, 1904,
in UTC time.
public long getModificationTime ()


The time-scale is an integer that specifies the time-scale for the entire
presentation; this is 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.
return  the time-scale
public long getTimeScale ()


The duration is an integer that declares length of the presentation (in
the indicated timescale). This property is derived from the
presentation's tracks: the value of this field corresponds to the
duration of the longest track in the presentation. If the duration cannot
be determined then duration is set to -1.
return  the duration of the longest track
public long getDuration ()


The rate is a floting point number that indicates the preferred rate
to play the presentation; 1.0 is normal forward playback
return  the playback rate
public double getRate ()


The volume is a floating point number that indicates the preferred
playback volume: 0.0 is mute, 1.0 is normal volume.
return  the volume
public double getVolume ()


Provides a transformation matrix for the video:
[A,B,U,C,D,V,X,Y,W]
A: width scale
B: width rotate
U: width angle
C: height rotate
D: height scale
V: height angle
X: position from left
Y: position from top
W: divider scale (restricted to 1.0)

The normal values for scale are 1.0 and for rotate 0.0.
The angles are restricted to 0.0.

@return the transformation matrix for the video
public double[] getTransformationMatrix ()


The next-track-ID is a non-zero integer that indicates a value to use
for the track ID of the next track to be added to this presentation. Zero
is not a valid track ID value. The value shall be larger than the largest
track-ID in use. If this value is equal to all 1s (32-bit), and a new
media track is to be added, then a search must be made in the file for an
unused track identifier.
return  the ID for the next track
public long getNextTrackID ()