decode_alpha_block 385 libavcodec/speedhq.c if ((ret = decode_alpha_block(s, &gb, last_alpha, dest_a, linesize_a)) < 0) decode_alpha_block 387 libavcodec/speedhq.c if ((ret = decode_alpha_block(s, &gb, last_alpha, dest_a + 8 * linesize_a, linesize_a)) < 0)