Package com.google.android.exoplayer2.effect

Class Contrast

  • All Implemented Interfaces:
    GlEffect, RgbMatrix, Effect
    @Deprecated
public class Contrast
extends Object
implements RgbMatrix
    Deprecated.
    com.google.android.exoplayer2 is deprecated. Please migrate to androidx.media3 (which contains the same ExoPlayer code). See the migration guide for more details, including a script to help with the migration.
    A RgbMatrix to control the contrast of video frames.

    • Constructor Detail

      • Contrast

        public Contrast​(@FloatRange(from=-1.0,to=1.0)
                float contrast)
        Deprecated.
        Creates a new instance for the given contrast value.

        Contrast values range from -1 (all gray pixels) to 1 (maximum difference of colors). 0 means to add no contrast and leaves the frames unchanged.

    • Method Detail

      • getMatrix

        public float[] getMatrix​(long presentationTimeUs,
                         boolean useHdr)
        Deprecated.
        Description copied from interface: RgbMatrix
        Returns the 4x4 RGB transformation matrix to apply to the color values of each pixel in the frame with the given timestamp.
        Specified by:
        getMatrix in interface RgbMatrix
        Parameters:
        presentationTimeUs - The timestamp of the frame to apply the matrix on.
        useHdr - If true, colors will be in linear RGB BT.2020. If false, colors will be in linear RGB BT.709. Must be consistent with useHdr in RgbMatrix.toGlShaderProgram(Context, boolean).
        Returns:
        The RgbMatrix to apply to the frame.

      • isNoOp

        public boolean isNoOp​(int inputWidth,
                      int inputHeight)
        Deprecated.
        Description copied from interface: GlEffect
        Returns whether a GlEffect applies no change at every timestamp.

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

        Specified by:
        isNoOp in interface GlEffect
        Parameters:
        inputWidth - The input frame width, in pixels.
        inputHeight - The input frame height, in pixels.