ColorLut

Kotlin |Java

@UnstableApi
public interface ColorLut extends GlEffect

Known direct subclasses

SingleColorLut

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

Specifies color transformations using color lookup tables to apply to each frame in the fragment shader.

Summary

Public methods
`abstract int`	`getLength(long presentationTimeUs)` Returns the length N of the 3D N x N x N LUT cube with the given timestamp.
`abstract int`	`getLutTextureId(long presentationTimeUs)` Returns the OpenGL texture ID of the LUT to apply to the pixels of the frame with the given timestamp.
`abstract void`	`release()` Releases the OpenGL texture of the LUT.
`default GlShaderProgram`	`toGlShaderProgram(Context context, boolean useHdr)` Returns a `GlShaderProgram` that applies the effect.

default long

getDurationAfterEffectApplied(long durationUs)

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

default boolean

isNoOp(int inputWidth, int inputHeight)

Returns whether a GlEffect applies no change at every timestamp.

abstract int getLength(long presentationTimeUs)

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

abstract int getLutTextureId(long presentationTimeUs)

Returns the OpenGL texture ID of the LUT to apply to the pixels of the frame with the given timestamp.

abstract void release()

Releases the OpenGL texture of the LUT.

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

default 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`.