IdctAdjustBeforeShift  176 libavcodec/vp3dsp.c                 dst[7*stride] = av_clip_uint8(128 + ((xC4S4 * ip[0] + (IdctAdjustBeforeShift << 16)) >> 20));
IdctAdjustBeforeShift  179 libavcodec/vp3dsp.c                     int v = (xC4S4 * ip[0] + (IdctAdjustBeforeShift << 16)) >> 20;