TimestampWrapper

Kotlin |Java

@UnstableApi
class TimestampWrapper : GlEffect

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

Summary

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

Public functions
`Boolean`	`isNoOp(inputWidth: Int, inputHeight: Int)` Returns whether a `GlEffect` applies no change at every timestamp.
`GlShaderProgram!`	`toGlShaderProgram(context: Context!, useHdr: Boolean)` Returns a `GlShaderProgram` that applies the effect.

Long

getDurationAfterEffectApplied(durationUs: Long)

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

TimestampWrapper(
    glEffect: GlEffect!,
    startTimeUs: @IntRange(from = 0) Long,
    endTimeUs: @IntRange(from = 0) Long
)

Creates a new instance.

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

fun isNoOp(inputWidth: Int, inputHeight: Int): Boolean

Returns whether a GlEffect applies no change at every timestamp.

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

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

fun toGlShaderProgram(context: Context!, useHdr: Boolean): GlShaderProgram!

Returns a GlShaderProgram that applies the effect.

Parameters
`context: Context!`	A `Context`.
`useHdr: Boolean`	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`.

val endTimeUs: Long

val glEffect: GlEffect!

val startTimeUs: Long