com.google.android.exoplayer.extractor.mp4

Class Track

java.lang.Object

com.google.android.exoplayer.extractor.mp4.Track

public final class Track
extends Object

Encapsulates information describing an MP4 track.

Field Summary

Fields

Modifier and Type	Field and Description
long	durationUs The duration of the track in microseconds, or C.UNKNOWN_TIME_US if unknown.
long[]	editListDurations Durations of edit list segments in the movie timescale.
long[]	editListMediaTimes Media times for edit list segments in the track timescale.
int	id The track identifier.
MediaFormat	mediaFormat The media format.
long	movieTimescale The movie timescale.
int	nalUnitLengthFieldLength For H264 video tracks, the length in bytes of the NALUnitLength field in each sample.
TrackEncryptionBox[]	sampleDescriptionEncryptionBoxes Track encryption boxes for the different track sample descriptions.
long	timescale The track timescale, defined as the number of time units that pass in one second.
int	type One of TYPE_vide, TYPE_soun, TYPE_text and TYPE_sbtl and TYPE_subt.
static int	TYPE_meta
static int	TYPE_sbtl
static int	TYPE_soun
static int	TYPE_subt
static int	TYPE_text
static int	TYPE_vide

Constructor Summary

Constructors

Constructor and Description
Track(int id, int type, long timescale, long movieTimescale, long durationUs, MediaFormat mediaFormat, TrackEncryptionBox[] sampleDescriptionEncryptionBoxes, int nalUnitLengthFieldLength, long[] editListDurations, long[] editListMediaTimes)

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_vide

public static final int TYPE_vide

TYPE_soun

public static final int TYPE_soun

TYPE_text

public static final int TYPE_text

TYPE_sbtl

public static final int TYPE_sbtl

TYPE_subt

public static final int TYPE_subt

TYPE_meta

public static final int TYPE_meta

id

public final int id

The track identifier.

type

public final int type

One of TYPE_vide, TYPE_soun, TYPE_text and TYPE_sbtl and TYPE_subt.

timescale

public final long timescale

The track timescale, defined as the number of time units that pass in one second.

movieTimescale

public final long movieTimescale

The movie timescale.

durationUs

public final long durationUs

The duration of the track in microseconds, or C.UNKNOWN_TIME_US if unknown.

mediaFormat

public final MediaFormat mediaFormat

The media format.

sampleDescriptionEncryptionBoxes

public final TrackEncryptionBox[] sampleDescriptionEncryptionBoxes

Track encryption boxes for the different track sample descriptions. Entries may be null.

editListDurations

public final long[] editListDurations

Durations of edit list segments in the movie timescale. Null if there is no edit list.

editListMediaTimes

public final long[] editListMediaTimes

Media times for edit list segments in the track timescale. Null if there is no edit list.

nalUnitLengthFieldLength

public final int nalUnitLengthFieldLength

For H264 video tracks, the length in bytes of the NALUnitLength field in each sample. -1 for other track types.

Constructor Detail

Track

public Track(int id,
             int type,
             long timescale,
             long movieTimescale,
             long durationUs,
             MediaFormat mediaFormat,
             TrackEncryptionBox[] sampleDescriptionEncryptionBoxes,
             int nalUnitLengthFieldLength,
             long[] editListDurations,
             long[] editListMediaTimes)