com.googlecode.mp4parser.authoring.builder

Class SyncSampleIntersectFinderImpl

java.lang.Object

com.googlecode.mp4parser.authoring.builder.SyncSampleIntersectFinderImpl

All Implemented Interfaces:

FragmentIntersectionFinder

public class SyncSampleIntersectFinderImpl
extends Object
implements FragmentIntersectionFinder

This FragmentIntersectionFinder cuts the input movie video tracks in fragments of the same length exactly before the sync samples. Audio tracks are cut into pieces of similar length.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SyncSampleIntersectFinderImpl.CacheTuple

Constructor Summary

Constructors

Constructor and Description
SyncSampleIntersectFinderImpl(Movie movie, Track referenceTrack, int minFragmentDurationSeconds) Creates a SyncSampleIntersectFinderImpl that will not create any fragment smaller than the given minFragmentDurationSeconds

Method Summary

Methods

Modifier and Type	Method and Description
long[]	getCommonIndices(long[] syncSamples, long[] syncSampleTimes, long timeScale, long[]... otherTracksTimes)
static List<long[]>	getSyncSamplesTimestamps(Movie movie, Track track) Calculates the timestamp of all tracks' sync samples.
long[]	sampleNumbers(Track track) Gets an array of sample numbers that are meant to be the first sample of each chunk or fragment.

Methods inherited from class java.lang.Object

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

Constructor Detail

SyncSampleIntersectFinderImpl

public SyncSampleIntersectFinderImpl(Movie movie,
                             Track referenceTrack,
                             int minFragmentDurationSeconds)

Creates a SyncSampleIntersectFinderImpl that will not create any fragment smaller than the given minFragmentDurationSeconds

Parameters:

movie - this movie is the reference

referenceTrack - used for audio tracks to find similar boundaries of segments.

minFragmentDurationSeconds - the smallest allowable duration of a fragment.

Method Detail

sampleNumbers

public long[] sampleNumbers(Track track)

Gets an array of sample numbers that are meant to be the first sample of each chunk or fragment.

Specified by:

sampleNumbers in interface FragmentIntersectionFinder

Parameters:

track - concerned track

Returns:

an array containing the ordinal of each fragment's first sample

getSyncSamplesTimestamps

public static List<long[]> getSyncSamplesTimestamps(Movie movie,
                                    Track track)

Calculates the timestamp of all tracks' sync samples.

Parameters:

movie - track is located in this movie

track - get this track's samples timestamps

Returns:

a list of timestamps

getCommonIndices

public long[] getCommonIndices(long[] syncSamples,
                      long[] syncSampleTimes,
                      long timeScale,
                      long[]... otherTracksTimes)