Concat

The Concat transform concatenates multiple input planes into a single unified byte plane.

Theory

Certain codecs or downstream transforms operate more efficiently on a single, contiguous byte stream rather than fragmented planes. Concat fuses N input planes into one, summing their byte lengths.

The inverse operation reliably splits the concatenated plane back into the original N sub-planes using the stored length parameters.

Usage

The transform requires an input_lens parameter array that specifies the byte length of each input plane. All input planes must share the same element width. The output is always a flat Byte plane.