Function libjxl :: jxl :: jpeg :: DecodeImageJPG
auto DecodeImageJPG(Span<const uint8_t> bytes, CodecInOut* io) -> Status
auto DecodeImageJPG(const Span<const uint8_t> bytes, CodecInOut* io) -> Status

Decodes bytes containing JPEG codestream into a CodecInOut as coefficients only, for lossless JPEG transcoding.