@woosh/meep-engine/src/core/math/idct_1d.d.ts

Pure JavaScript game engine. Fully featured and production ready.

/**
 *  Performs a 1D Inverse Discrete Cosine Transform on an 8-element block.
 *
 * This function implements a fast AAN (Arai-Agui-Nakajima) algorithm.
 * It performs the transformation in-place, modifying the input array directly.
 *
 * NOTE: ported from ffmpeg https://github.com/RPi-Distro/ffmpeg/blob/3a48fe739a020d939a4e752684ef1eed901fd189/libavcodec/exr.c#L916
 *
 * @param {Float64Array} block A pointer to an array of 8 double-precision floating-point values.
 * @param {number} offset
 * @param {number} stride
 */
export function idct_1d(block: Float64Array, offset: number, stride: number): void;
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