LB or LDB: Low-delay B – the variant of the LD conditions that uses B frames.
LC: Low complexity – a set of coding capabilities designed for reduced implementation complexity (contrast with HE). Often loosely associated with LD.
LCEC: Low-complexity entropy coding.
LD: Low delay – one of two sets of coding conditions designed to enable interactive real-time communication, with less emphasis on ease of random access (contrast with RA). Often loosely associated with LC. Typically refers to LB, although also applies to LP.
