com.google.android.exoplayer2.extractor

Class TimestampAdjuster

java.lang.Object

com.google.android.exoplayer2.extractor.TimestampAdjuster

public final class TimestampAdjuster
extends java.lang.Object

Offsets timestamps according to an initial sample timestamp offset. MPEG-2 TS timestamps scaling and adjustment is supported, taking into account timestamp rollover.

Field Summary

Fields

Modifier and Type	Field and Description
static long	DO_NOT_OFFSET A special firstSampleTimestampUs value indicating that presentation timestamps should not be offset.

Constructor Summary

Constructors

Constructor and Description
TimestampAdjuster(long firstSampleTimestampUs)

Method Summary

Modifier and Type	Method and Description
long	adjustSampleTimestamp(long timeUs) Offsets a sample timestamp in microseconds.
long	adjustTsTimestamp(long pts) Scales and offsets an MPEG-2 TS presentation timestamp considering wraparound.
static long	ptsToUs(long pts) Converts a value in MPEG-2 timestamp units to the corresponding value in microseconds.
void	reset() Resets the instance to its initial state.
static long	usToPts(long us) Converts a value in microseconds to the corresponding values in MPEG-2 timestamp units.
void	waitUntilInitialized() Blocks the calling thread until this adjuster is initialized.

Methods inherited from class java.lang.Object

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

Field Detail

DO_NOT_OFFSET

public static final long DO_NOT_OFFSET

A special firstSampleTimestampUs value indicating that presentation timestamps should not be offset.

See Also:

Constant Field Values

Constructor Detail

TimestampAdjuster

public TimestampAdjuster(long firstSampleTimestampUs)

Parameters:

firstSampleTimestampUs - The desired result of the first call to adjustSampleTimestamp(long), or DO_NOT_OFFSET if presentation timestamps should not be offset.

Method Detail

reset

public void reset()

Resets the instance to its initial state.

adjustTsTimestamp

public long adjustTsTimestamp(long pts)

Scales and offsets an MPEG-2 TS presentation timestamp considering wraparound.

Parameters:

pts - The MPEG-2 TS presentation timestamp.

Returns:

The adjusted timestamp in microseconds.

adjustSampleTimestamp

public long adjustSampleTimestamp(long timeUs)

Offsets a sample timestamp in microseconds.

Parameters:

timeUs - The timestamp of a sample to adjust.

Returns:

The adjusted timestamp in microseconds.

waitUntilInitialized

public void waitUntilInitialized()
                          throws java.lang.InterruptedException

Blocks the calling thread until this adjuster is initialized.

Throws:

java.lang.InterruptedException - If the thread was interrupted.

ptsToUs

public static long ptsToUs(long pts)

Converts a value in MPEG-2 timestamp units to the corresponding value in microseconds.

Parameters:

pts - A value in MPEG-2 timestamp units.

Returns:

The corresponding value in microseconds.

usToPts

public static long usToPts(long us)

Converts a value in microseconds to the corresponding values in MPEG-2 timestamp units.

Parameters:

us - A value in microseconds.

Returns:

The corresponding value in MPEG-2 timestamp units.