SingleColorLut

Kotlin |Java

@UnstableApi
class SingleColorLut : ColorLut

Transforms the colors of a frame by applying the same color lookup table to each frame.

Summary

Public functions
`java-static SingleColorLut!`	`createFromBitmap(lut: Bitmap!)` Creates a new instance.
`java-static SingleColorLut!`	`createFromCube(lutCube: Array<Array<IntArray!>!>!)` Creates a new instance.
`Int`	`getLength(presentationTimeUs: Long)` Returns the length N of the 3D N x N x N LUT cube with the given timestamp.
`Int`	`getLutTextureId(presentationTimeUs: Long)` Must be called after toGlShaderProgram.
`Unit`	`release()` Releases the OpenGL texture of the LUT.
`BaseGlShaderProgram!`	`toGlShaderProgram(context: Context!, useHdr: Boolean)` Returns a `GlShaderProgram` that applies the effect.

Inherited functions

From androidx.media3.effect.GlEffect

Boolean

isNoOp(inputWidth: Int, inputHeight: Int)

Returns whether a GlEffect applies no change at every timestamp.

Public functions

createFromBitmap

java-static fun createFromBitmap(lut: Bitmap!): SingleColorLut!

Creates a new instance.

LUT needs to be a Bitmap of a flattened HALD image of width N and height N^2. Each element must be an integer representing a color using the ARGB_8888 format.

createFromCube

java-static fun createFromCube(lutCube: Array<Array<IntArray!>!>!): SingleColorLut!

Creates a new instance.

lutCube needs to be a N x N x N cube and each element is an integer representing a color using the ARGB_8888 format.

getLength

fun getLength(presentationTimeUs: Long): Int

Returns the length N of the 3D N x N x N LUT cube with the given timestamp.

getLutTextureId

fun getLutTextureId(presentationTimeUs: Long): Int

Must be called after toGlShaderProgram.

release

fun release(): Unit

Releases the OpenGL texture of the LUT.

Throws
`androidx.media3.common.util.GlUtil.GlException`

toGlShaderProgram

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

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 .