static OPJ_BOOL opj_tcd_dc_level_shift_encode ( opj_tcd_t *p_tcd )
{
        OPJ_UINT32 compno;
        opj_tcd_tilecomp_t * l_tile_comp = 00;
        opj_tccp_t * l_tccp = 00;
        opj_image_comp_t * l_img_comp = 00;
        opj_tcd_tile_t * l_tile;
        OPJ_UINT32 l_nb_elem,i;
        OPJ_INT32 * l_current_ptr;

        l_tile = p_tcd->tcd_image->tiles;
        l_tile_comp = l_tile->comps;
        l_tccp = p_tcd->tcp->tccps;
        l_img_comp = p_tcd->image->comps;

        for (compno = 0; compno < l_tile->numcomps; compno++) {
                l_current_ptr = l_tile_comp->data;
                l_nb_elem = (OPJ_UINT32)((l_tile_comp->x1 - l_tile_comp->x0) * (l_tile_comp->y1 - l_tile_comp->y0));

                if (l_tccp->qmfbid == 1) {
                        for     (i = 0; i < l_nb_elem; ++i) {
                                *l_current_ptr -= l_tccp->m_dc_level_shift ;
                                ++l_current_ptr;
                        }
                }
                else {
                        for (i = 0; i < l_nb_elem; ++i) {
                                *l_current_ptr = (*l_current_ptr - l_tccp->m_dc_level_shift) * (1 << 11);
                                ++l_current_ptr;
                        }
                }

                ++l_img_comp;
                ++l_tccp;
                ++l_tile_comp;
        }

        return OPJ_TRUE;
}
Unknown