com.google.android.exoplayer

Class VideoFrameReleaseTimeHelper

java.lang.Object

com.google.android.exoplayer.VideoFrameReleaseTimeHelper

public final class VideoFrameReleaseTimeHelper
extends Object

Makes a best effort to adjust frame release timestamps for a smoother visual result.

Constructor Summary

Constructors

Constructor and Description
VideoFrameReleaseTimeHelper() Constructs an instance that smoothes frame release but does not snap release to the default display's vsync signal.
VideoFrameReleaseTimeHelper(Context context) Constructs an instance that smoothes frame release and snaps release to the default display's vsync signal.

Method Summary

Modifier and Type	Method and Description
long	adjustReleaseTime(long framePresentationTimeUs, long unadjustedReleaseTimeNs) Called to make a fine-grained adjustment to a frame release time.
void	disable() Disables the helper.
void	enable() Enables the helper.
protected void	onSynced()

Methods inherited from class java.lang.Object

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

Constructor Detail

VideoFrameReleaseTimeHelper

public VideoFrameReleaseTimeHelper()

Constructs an instance that smoothes frame release but does not snap release to the default display's vsync signal.

VideoFrameReleaseTimeHelper

public VideoFrameReleaseTimeHelper(Context context)

Constructs an instance that smoothes frame release and snaps release to the default display's vsync signal.

Parameters:

context - A context from which information about the default display can be retrieved.

Method Detail

enable

public void enable()

Enables the helper.

disable

public void disable()

Disables the helper.

adjustReleaseTime

public long adjustReleaseTime(long framePresentationTimeUs,
                              long unadjustedReleaseTimeNs)

Called to make a fine-grained adjustment to a frame release time.

Parameters:

framePresentationTimeUs - The frame's media presentation time, in microseconds.

unadjustedReleaseTimeNs - The frame's unadjusted release time, in nanoseconds and in the same time base as System.nanoTime().

Returns:

An adjusted release time for the frame, in nanoseconds and in the same time base as System.nanoTime().

onSynced

protected void onSynced()