Module jpeg 

Baseline JPEG constants. JPEG constants and helpers shared by CPU and device backends.

Modules

idct

Fixed-point constants used by the baseline JPEG integer IDCT.

lossless

Lossless (SOF3) prediction and difference coding. Lossless (SOF3) JPEG prediction and difference coding (T.81 Annex H).

ycbcr

Fixed-point constants used by JPEG YCbCr to RGB conversion.

Structs

CanonicalHuffmanDerivation

Canonical JPEG Huffman table derivation.

Enums

CanonicalHuffmanError

Error returned by derive_canonical_huffman.

Constants

ZIGZAG

T.81 zigzag order from stream coefficient index to natural 8x8 index.

Functions

derive_canonical_huffman

Derive canonical JPEG Huffman codes and slow-path decode bounds from the T.81 DHT BITS vector and HUFFVAL length.