unpack_alpha      487 libavcodec/proresdec2.c         unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 16);
unpack_alpha      489 libavcodec/proresdec2.c         unpack_alpha(&gb, blocks, blocks_per_slice * 4 * 64, 8);
unpack_alpha      545 libavcodec/proresdec_lgpl.c         unpack_alpha(&gb, td->blocks, mbs_per_slice * 4 * 64, 16);
unpack_alpha      547 libavcodec/proresdec_lgpl.c         unpack_alpha(&gb, td->blocks, mbs_per_slice * 4 * 64, 8);