A2 32 libavcodec/eaidct.c #define A2 277 /* sin(pi/8)*sqrt(2)<<9 */ A2 55 libavcodec/faandct.c #define A2 0.54119610014619698435 // cos(pi*6/16)sqrt(2) A2 36 libavcodec/faanidct.c #define A2 0.92387953251128675613 // cos(pi*2/16)