TimestampWrapper

Kotlin |Java

@UnstableApi
public final class TimestampWrapper implements GlEffect

Applies a GlEffect from startTimeUs to endTimeUs, and no change on all other timestamps.

Summary

Public constructors
`TimestampWrapper( GlEffect glEffect, @IntRange(from = 0) long startTimeUs, @IntRange(from = 0) long endTimeUs )` Creates a new instance.

Public methods
`boolean`	`isNoOp(int inputWidth, int inputHeight)` Returns whether a `GlEffect` applies no change at every timestamp.
`GlShaderProgram`	`toGlShaderProgram(Context context, boolean useHdr)` Returns a `GlShaderProgram` that applies the effect.

long

getDurationAfterEffectApplied(long durationUs)

Returns the expected duration of the output stream when the effect is applied given a input durationUs.

public final long endTimeUs

public final GlEffect glEffect

public final long startTimeUs

public TimestampWrapper(
    GlEffect glEffect,
    @IntRange(from = 0) long startTimeUs,
    @IntRange(from = 0) long endTimeUs
)

Creates a new instance.

Parameters
`GlEffect glEffect`	The `GlEffect` to apply, from `startTimeUs` to `endTimeUs`. This instance must not change the output dimensions.
`@IntRange(from = 0) long startTimeUs`	The time to begin applying `glEffect` on, in microseconds. Must be non-negative.
`@IntRange(from = 0) long endTimeUs`	The time to stop applying {code glEffect} on, in microseconds. Must be non-negative.

public boolean isNoOp(int inputWidth, int inputHeight)

Returns whether a GlEffect applies no change at every timestamp.

This can be used as a hint to skip this instance.

Parameters
`int inputWidth`	The input frame width, in pixels.
`int inputHeight`	The input frame height, in pixels.

public GlShaderProgram toGlShaderProgram(Context context, boolean useHdr)

Returns a GlShaderProgram that applies the effect.

Parameters
`Context context`	A `Context`.
`boolean useHdr`	Whether input textures come from an HDR source. If `true`, colors will be in linear RGB BT.2020. If `false`, colors will be in linear RGB BT.709.

Throws
`androidx.media3.common.VideoFrameProcessingException`	If an error occurs while creating the `GlShaderProgram`.