com.coremedia.iso.boxes
Class TrackHeaderBox
java.lang.Object
com.coremedia.iso.boxes.AbstractBox
com.coremedia.iso.boxes.AbstractFullBox
com.coremedia.iso.boxes.TrackHeaderBox
- All Implemented Interfaces:
- Box, FullBox
public class TrackHeaderBox
- extends AbstractFullBox
This box specifies the characteristics of a single track. Exactly one Track Header Box is contained in a track.
In the absence of an edit list, the presentation of a track starts at the beginning of the overall presentation. An
empty edit is used to offset the start time of a track.
The default value of the track header flags for media tracks is 7 (track_enabled, track_in_movie,
track_in_preview). If in a presentation all tracks have neither track_in_movie nor track_in_preview set, then all
tracks shall be treated as if both flags were set on all tracks. Hint tracks should have the track header flags set
to 0, so that they are ignored for local playback and preview.
Methods inherited from class com.coremedia.iso.boxes.AbstractBox |
getBox, getDeadBytes, getHeader, getIsoFile, getParent, getSize, getType, getUserType, isParsed, parse, parseDetails, setDeadBytes, setParent, setUserType |
TYPE
public static final String TYPE
- See Also:
- Constant Field Values
TrackHeaderBox
public TrackHeaderBox()
getCreationTime
public long getCreationTime()
getModificationTime
public long getModificationTime()
getTrackId
public long getTrackId()
getDuration
public long getDuration()
getLayer
public int getLayer()
getAlternateGroup
public int getAlternateGroup()
getVolume
public float getVolume()
getMatrix
public long[] getMatrix()
getWidth
public double getWidth()
getHeight
public double getHeight()
getContentSize
protected long getContentSize()
- Description copied from class:
AbstractBox
- Gets the box's content size. This excludes all header fields:
- 4 byte size
- 4 byte type
- (large length - 8 bytes)
- (user type - 16 bytes)
Flags and version of a full box need to be taken into account.
- Specified by:
getContentSize
in class AbstractBox
- Returns:
- Gets the box's content size in bytes
_parseDetails
public void _parseDetails(ByteBuffer content)
- Description copied from class:
AbstractBox
- Implement the actual parsing of the box's fields here. External classes will always call
AbstractBox.parseDetails()
which encapsulates the call to this method with some safeguards.
- Specified by:
_parseDetails
in class AbstractBox
getContent
public void getContent(ByteBuffer bb)
throws IOException
- Description copied from class:
AbstractBox
- Writes the box's content into the given
ByteBuffer
. This must include flags
and version in case of a full box. bb
has been initialized with
getSize()
bytes.
- Specified by:
getContent
in class AbstractBox
- Parameters:
bb
- the box's content-sink.
- Throws:
IOException
- in case of an exception in the underlying OutputStream
.
toString
public String toString()
- Overrides:
toString
in class Object
setCreationTime
public void setCreationTime(long creationTime)
setModificationTime
public void setModificationTime(long modificationTime)
setTrackId
public void setTrackId(long trackId)
setDuration
public void setDuration(long duration)
setLayer
public void setLayer(int layer)
setAlternateGroup
public void setAlternateGroup(int alternateGroup)
setVolume
public void setVolume(float volume)
setMatrix
public void setMatrix(long[] matrix)
setWidth
public void setWidth(double width)
setHeight
public void setHeight(double height)
isEnabled
public boolean isEnabled()
isInMovie
public boolean isInMovie()
isInPreview
public boolean isInPreview()
isInPoster
public boolean isInPoster()
Copyright © 2012. All Rights Reserved.