ALPHA_SHIFT_16_TO_12   78 libavcodec/proresdec2.c                     dst[idx++] = ALPHA_SHIFT_16_TO_12(alpha_val);
ALPHA_SHIFT_16_TO_12  100 libavcodec/proresdec2.c                     dst[idx++] = ALPHA_SHIFT_16_TO_12(alpha_val);