Module stream 

rANS stream types — RansEncoderStream / RansDecoderStream.

rANS stream types

Standalone RansEncoderStream and RansDecoderStream matching Microsoft’s RansEncoderStream / RansDecoderStream from EntropyCoder.h.

• Encoder stream keeps a persistent raw encoder state across push() calls (matching Microsoft’s RawRansEncoderStream), flushing once at the end.
• Decoder stream owns the encoded data and advances a persistent decoder across sequential decode calls.

Both types are generic over the rANS variant (RansByte or Rans64), making variant mismatches a compile-time error.

Structs

RansDecoderStream

rANS decoder stream for a specific variant S.

RansEncoderStream

rANS encoder stream for a specific variant S.

Enums

RansVariant

rANS variants for runtime dispatch (Python-facing).

Functions

units_to_le_bytes

Convert u32 units to little-endian bytes.