Common abbreviations/shorthands we use that don't need a comment ================================================================ dct/idct: (inverse) discrete cosine tranform dsp: digital signal processing dst/adst: (asymmetric) discrete sine transform ec: entropy coding or error concealment er: error resilience fft: fast Fourier transform gop: group of pictures hw/sw: hardware/software lpf/deblock: loop filter mb: macroblock mc: motion compensation me: motion estimation mv: motion vector pel/qpel/epel/hpel/fpel: pixel / quarter-pixel / eighth-pixel / half-pixel / full-pixel sl: slice vlc: variable length coding vq: vector quantization