com.googlecode.mp4parser.authoring.tracks

Class ChangeTimeScaleTrack

java.lang.Object

com.googlecode.mp4parser.authoring.tracks.ChangeTimeScaleTrack

All Implemented Interfaces:

Track, Closeable, AutoCloseable

public class ChangeTimeScaleTrack
extends Object
implements Track

Changes the timescale of a track by wrapping the track.

Constructor Summary

Constructors

Constructor and Description
ChangeTimeScaleTrack(Track source, long targetTimeScale, long[] syncSamples) Changes the time scale of the source track to the target time scale and makes sure that any rounding errors that may have summed are corrected exactly before the syncSamples.

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
List<CompositionTimeToSample.Entry>	getCompositionTimeEntries()
long	getDuration() The duration of the track in track timescale.
List<Edit>	getEdits()
String	getHandler()
String	getName() A name for identification purposes.
List<SampleDependencyTypeBox.Entry>	getSampleDependencies()
SampleDescriptionBox	getSampleDescriptionBox()
long[]	getSampleDurations() Each samples is covers a small time span in a video.
Map<GroupEntry,long[]>	getSampleGroups()
List<Sample>	getSamples() The list of all samples.
SubSampleInformationBox	getSubsampleInformationBox()
long[]	getSyncSamples()
TrackMetaData	getTrackMetaData()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ChangeTimeScaleTrack

public ChangeTimeScaleTrack(Track source,
                    long targetTimeScale,
                    long[] syncSamples)

Changes the time scale of the source track to the target time scale and makes sure that any rounding errors that may have summed are corrected exactly before the syncSamples.

Parameters:

source - the source track

targetTimeScale - the resulting time scale of this track.

syncSamples - at these sync points where rounding error are corrected.

Method Detail

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

getSampleDescriptionBox

public SampleDescriptionBox getSampleDescriptionBox()

Specified by:

getSampleDescriptionBox in interface Track

getSampleDurations

public long[] getSampleDurations()

Description copied from interface: Track

Each samples is covers a small time span in a video. This method returns the duration for each sample in track timescale. The array must contain exactly as many samples as Track.getSamples() contains.

Specified by:

getSampleDurations in interface Track

Returns:

an array of ticks

getCompositionTimeEntries

public List<CompositionTimeToSample.Entry> getCompositionTimeEntries()

Specified by:

getCompositionTimeEntries in interface Track

getSyncSamples

public long[] getSyncSamples()

Specified by:

getSyncSamples in interface Track

getSampleDependencies

public List<SampleDependencyTypeBox.Entry> getSampleDependencies()

Specified by:

getSampleDependencies in interface Track

getTrackMetaData

public TrackMetaData getTrackMetaData()

Specified by:

getTrackMetaData in interface Track

getHandler

public String getHandler()

Specified by:

getHandler in interface Track

getSamples

public List<Sample> getSamples()

Description copied from interface: Track

The list of all samples.

Specified by:

getSamples in interface Track

Returns:

this track's samples

getSubsampleInformationBox

public SubSampleInformationBox getSubsampleInformationBox()

Specified by:

getSubsampleInformationBox in interface Track

getDuration

public long getDuration()

Description copied from interface: Track

The duration of the track in track timescale. It's typically the sum of all samples' duration.

Specified by:

getDuration in interface Track

Returns:

the track's duration

toString

public String toString()

Overrides:

toString in class Object

getName

public String getName()

Description copied from interface: Track

A name for identification purposes. Might return the underlying filename or network address or any other identifier. For informational/debug only. This is no metadata!

Specified by:

getName in interface Track

Returns:

the track's name

getEdits

public List<Edit> getEdits()

Specified by:

getEdits in interface Track

getSampleGroups

public Map<GroupEntry,long[]> getSampleGroups()

Specified by:

getSampleGroups in interface Track