pub fn idct_blocks_to_signed_samples_rayon(
blocks: &[[i16; 64]],
) -> Vec<[i32; 64]>Expand description
Decode the job’s dequantized DCT blocks into j2k’s signed integer component sample blocks.
This is public so hybrid GPU backends can keep JPEG parsing and exact IDCT on CPU while offloading the reversible 5/3 projection.