Crate j2k_transcode_metal 

Apple Metal GPU acceleration for Rust JPEG-to-J2K/HTJ2K transcode stages.

The supported targets are direct DCT-grid to one-level 5/3 and 9/7 wavelet projections used by j2k-transcode’s HTJ2K paths. CPU scalar code remains the oracle and fallback.

Structs

MetalDctToWaveletStageAccelerator

Optional Metal accelerator for j2k-transcode transform stages.

MetalTranscodeSession

Placeholder Metal transcode session for hosts without Metal support.

Enums

MetalTranscodeError

Error returned by the Metal transcode accelerator.

Constants

METAL_UNAVAILABLE

Stable message returned when Metal is unavailable.