diff --git a/src/lib/openjp2/j2k.c b/src/lib/openjp2/j2k.c
index 1cc79f07..3d527f81 100644
--- a/src/lib/openjp2/j2k.c
+++ b/src/lib/openjp2/j2k.c
@@ -4901,12 +4901,12 @@ OPJ_BOOL opj_j2k_write_epc(     opj_j2k_t *p_j2k,
 
         l_cstr_index = p_j2k->cstr_index;
         if (l_cstr_index) {
-                l_cstr_index->codestream_size = (OPJ_UINT64)opj_stream_tell(p_stream);
+                l_cstr_index->codestream_size = opj_stream_tell(p_stream);
                 /* UniPG>> */
                 /* The following adjustment is done to adjust the codestream size */
                 /* if SOD is not at 0 in the buffer. Useful in case of JP2, where */
                 /* the first bunch of bytes is not in the codestream              */
-                l_cstr_index->codestream_size -= (OPJ_UINT64)l_cstr_index->main_head_start;
+                l_cstr_index->codestream_size -= l_cstr_index->main_head_start;
                 /* <<UniPG */
         }
 
@@ -5680,7 +5680,7 @@ OPJ_BOOL opj_j2k_add_mct(opj_tcp_t * p_tcp, opj_image_t * p_image, OPJ_UINT32 p_
                 l_current_offset_data = l_offset_data;
 
                 for (i=0;i<p_image->numcomps;++i) {
-                        l_tccp->m_dc_level_shift = (OPJ_INT32)*(l_current_offset_data++);
+                        l_tccp->m_dc_level_shift = *(l_current_offset_data++);
                         ++l_tccp;
                 }
 
@@ -5862,14 +5862,14 @@ int opj_j2k_initialise_4K_poc(opj_poc_t *POC, int numres){
     POC[0].resno0  = 0;
     POC[0].compno0 = 0;
     POC[0].layno1  = 1;
-    POC[0].resno1  = (OPJ_UINT32)(numres-1);
+    POC[0].resno1  = numres-1;
     POC[0].compno1 = 3;
     POC[0].prg1 = OPJ_CPRL;
     POC[1].tile  = 1;
-    POC[1].resno0  = (OPJ_UINT32)(numres-1);
+    POC[1].resno0  = numres-1;
     POC[1].compno0 = 0;
     POC[1].layno1  = 1;
-    POC[1].resno1  = (OPJ_UINT32)numres;
+    POC[1].resno1  = numres;
     POC[1].compno1 = 3;
     POC[1].prg1 = OPJ_CPRL;
     return 2;
@@ -5985,7 +5985,7 @@ void opj_j2k_set_cinema_parameters(opj_cparameters_t *parameters, opj_image_t *i
 
     /* Progression order changes for 4K, disallowed for 2K */
     if (parameters->cp_cinema == OPJ_CINEMA4K_24) {
-        parameters->numpocs = (OPJ_UINT32)opj_j2k_initialise_4K_poc(parameters->POC,parameters->numresolution);
+        parameters->numpocs = opj_j2k_initialise_4K_poc(parameters->POC,parameters->numresolution);
     } else {
         parameters->numpocs = 0;
     }
@@ -6141,26 +6141,26 @@ void opj_j2k_setup_encoder(     opj_j2k_t *p_j2k,
         copy user encoding parameters
         */
         cp->m_specific_param.m_enc.m_cinema = parameters->cp_cinema;
-        cp->m_specific_param.m_enc.m_max_comp_size =    (OPJ_UINT32)parameters->max_comp_size;
+        cp->m_specific_param.m_enc.m_max_comp_size =    parameters->max_comp_size;
         cp->rsiz   = parameters->cp_rsiz;
-        cp->m_specific_param.m_enc.m_disto_alloc = (OPJ_UINT32)parameters->cp_disto_alloc & 1u;
-        cp->m_specific_param.m_enc.m_fixed_alloc = (OPJ_UINT32)parameters->cp_fixed_alloc & 1u;
-        cp->m_specific_param.m_enc.m_fixed_quality = (OPJ_UINT32)parameters->cp_fixed_quality & 1u;
+        cp->m_specific_param.m_enc.m_disto_alloc = parameters->cp_disto_alloc & 1u;
+        cp->m_specific_param.m_enc.m_fixed_alloc = parameters->cp_fixed_alloc & 1u;
+        cp->m_specific_param.m_enc.m_fixed_quality = parameters->cp_fixed_quality & 1u;
 
         /* mod fixed_quality */
         if (parameters->cp_fixed_alloc && parameters->cp_matrice) {
-                size_t array_size = (size_t)parameters->tcp_numlayers * (size_t)parameters->numresolution * 3 * sizeof(OPJ_INT32);
+                size_t array_size = parameters->tcp_numlayers * parameters->numresolution * 3 * sizeof(OPJ_INT32);
                 cp->m_specific_param.m_enc.m_matrice = (OPJ_INT32 *) opj_malloc(array_size);
                 memcpy(cp->m_specific_param.m_enc.m_matrice, parameters->cp_matrice, array_size);
         }
 
         /* tiles */
-        cp->tdx = (OPJ_UINT32)parameters->cp_tdx;
-        cp->tdy = (OPJ_UINT32)parameters->cp_tdy;
+        cp->tdx = parameters->cp_tdx;
+        cp->tdy = parameters->cp_tdy;
 
         /* tile offset */
-        cp->tx0 = (OPJ_UINT32)parameters->cp_tx0;
-        cp->ty0 = (OPJ_UINT32)parameters->cp_ty0;
+        cp->tx0 = parameters->cp_tx0;
+        cp->ty0 = parameters->cp_ty0;
 
         /* comment string */
         if(parameters->cp_comment) {
@@ -6175,15 +6175,15 @@ void opj_j2k_setup_encoder(     opj_j2k_t *p_j2k,
         */
 
         if (parameters->tile_size_on) {
-                cp->tw = (OPJ_UINT32)opj_int_ceildiv((OPJ_INT32)(image->x1 - cp->tx0), (OPJ_INT32)cp->tdx);
-                cp->th = (OPJ_UINT32)opj_int_ceildiv((OPJ_INT32)(image->y1 - cp->ty0), (OPJ_INT32)cp->tdy);
+                cp->tw = opj_int_ceildiv(image->x1 - cp->tx0, cp->tdx);
+                cp->th = opj_int_ceildiv(image->y1 - cp->ty0, cp->tdy);
         } else {
                 cp->tdx = image->x1 - cp->tx0;
                 cp->tdy = image->y1 - cp->ty0;
         }
 
         if (parameters->tp_on) {
-                cp->m_specific_param.m_enc.m_tp_flag = (OPJ_BYTE)parameters->tp_flag;
+                cp->m_specific_param.m_enc.m_tp_flag = parameters->tp_flag;
                 cp->m_specific_param.m_enc.m_tp_on = 1;
         }
 
@@ -6248,13 +6248,13 @@ void opj_j2k_setup_encoder(     opj_j2k_t *p_j2k,
         cp->tcps = (opj_tcp_t*) opj_calloc(cp->tw * cp->th, sizeof(opj_tcp_t));
         if (parameters->numpocs) {
                 /* initialisation of POC */
-                opj_j2k_check_poc_val(parameters->POC,parameters->numpocs, (OPJ_UINT32)parameters->numresolution, image->numcomps, (OPJ_UINT32)parameters->tcp_numlayers, p_manager);
+                opj_j2k_check_poc_val(parameters->POC,parameters->numpocs, parameters->numresolution, image->numcomps, parameters->tcp_numlayers, p_manager);
                 /* TODO MSD use the return value*/
         }
 
         for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
                 opj_tcp_t *tcp = &cp->tcps[tileno];
-                tcp->numlayers = (OPJ_UINT32)parameters->tcp_numlayers;
+                tcp->numlayers = parameters->tcp_numlayers;
 
                 for (j = 0; j < tcp->numlayers; j++) {
                         if(cp->m_specific_param.m_enc.m_cinema){
@@ -6271,9 +6271,9 @@ void opj_j2k_setup_encoder(     opj_j2k_t *p_j2k,
                         }
                 }
 
-                tcp->csty = (OPJ_UINT32)parameters->csty;
+                tcp->csty = parameters->csty;
                 tcp->prg = parameters->prog_order;
-                tcp->mct = (OPJ_UINT32)parameters->tcp_mct;
+                tcp->mct = parameters->tcp_mct;
 
                 numpocs_tile = 0;
                 tcp->POC = 0;
@@ -6346,10 +6346,10 @@ void opj_j2k_setup_encoder(     opj_j2k_t *p_j2k,
                         opj_tccp_t *tccp = &tcp->tccps[i];
 
                         tccp->csty = parameters->csty & 0x01;   /* 0 => one precinct || 1 => custom precinct  */
-                        tccp->numresolutions = (OPJ_UINT32)parameters->numresolution;
-                        tccp->cblkw = (OPJ_UINT32)opj_int_floorlog2(parameters->cblockw_init);
-                        tccp->cblkh = (OPJ_UINT32)opj_int_floorlog2(parameters->cblockh_init);
-                        tccp->cblksty = (OPJ_UINT32)parameters->mode;
+                        tccp->numresolutions = parameters->numresolution;
+                        tccp->cblkw = opj_int_floorlog2(parameters->cblockw_init);
+                        tccp->cblkh = opj_int_floorlog2(parameters->cblockh_init);
+                        tccp->cblksty = parameters->mode;
                         tccp->qmfbid = parameters->irreversible ? 0 : 1;
                         tccp->qntsty = parameters->irreversible ? J2K_CCP_QNTSTY_SEQNT : J2K_CCP_QNTSTY_NOQNT;
                         tccp->numgbits = 2;
@@ -6363,19 +6363,19 @@ void opj_j2k_setup_encoder(     opj_j2k_t *p_j2k,
                                 if (parameters->csty & J2K_CCP_CSTY_PRT) {
                                         OPJ_INT32 p = 0, it_res;
                                         assert( tccp->numresolutions > 0 );
-                                        for (it_res = (OPJ_INT32)tccp->numresolutions - 1; it_res >= 0; it_res--) {
+                                        for (it_res = tccp->numresolutions - 1; it_res >= 0; it_res--) {
                                                 if (p < parameters->res_spec) {
 
                                                         if (parameters->prcw_init[p] < 1) {
                                                                 tccp->prcw[it_res] = 1;
                                                         } else {
-                                                                tccp->prcw[it_res] = (OPJ_UINT32)opj_int_floorlog2(parameters->prcw_init[p]);
+                                                                tccp->prcw[it_res] = opj_int_floorlog2(parameters->prcw_init[p]);
                                                         }
 
                                                         if (parameters->prch_init[p] < 1) {
                                                                 tccp->prch[it_res] = 1;
                                                         }else {
-                                                                tccp->prch[it_res] = (OPJ_UINT32)opj_int_floorlog2(parameters->prch_init[p]);
+                                                                tccp->prch[it_res] = opj_int_floorlog2(parameters->prch_init[p]);
                                                         }
 
                                                 } else {
@@ -6391,13 +6391,13 @@ void opj_j2k_setup_encoder(     opj_j2k_t *p_j2k,
                                                         if (size_prcw < 1) {
                                                                 tccp->prcw[it_res] = 1;
                                                         } else {
-                                                                tccp->prcw[it_res] = (OPJ_UINT32)opj_int_floorlog2(size_prcw);
+                                                                tccp->prcw[it_res] = opj_int_floorlog2(size_prcw);
                                                         }
 
                                                         if (size_prch < 1) {
                                                                 tccp->prch[it_res] = 1;
                                                         } else {
-                                                                tccp->prch[it_res] = (OPJ_UINT32)opj_int_floorlog2(size_prch);
+                                                                tccp->prch[it_res] = opj_int_floorlog2(size_prch);
                                                         }
                                                 }
                                                 p++;
@@ -6427,7 +6427,7 @@ static OPJ_BOOL opj_j2k_add_mhmarker(opj_codestream_index_t *cstr_index, OPJ_UIN
         /* expand the list? */
         if ((cstr_index->marknum + 1) > cstr_index->maxmarknum) {
                 opj_marker_info_t *new_marker;
-                cstr_index->maxmarknum = (OPJ_UINT32)(100 + (OPJ_INT32) ((OPJ_FLOAT32) cstr_index->maxmarknum * 1.0F));
+                cstr_index->maxmarknum = 100 + (OPJ_INT32) ((OPJ_FLOAT32) cstr_index->maxmarknum * 1.0F);
                 new_marker = (opj_marker_info_t *) opj_realloc(cstr_index->marker, cstr_index->maxmarknum *sizeof(opj_marker_info_t));
                 if (! new_marker) {
                         opj_free(cstr_index->marker);
@@ -6456,7 +6456,7 @@ static OPJ_BOOL opj_j2k_add_tlmarker(OPJ_UINT32 tileno, opj_codestream_index_t *
         /* expand the list? */
         if ((cstr_index->tile_index[tileno].marknum + 1) > cstr_index->tile_index[tileno].maxmarknum) {
                 opj_marker_info_t *new_marker;
-                cstr_index->tile_index[tileno].maxmarknum = (OPJ_UINT32)(100 + (OPJ_INT32) ((OPJ_FLOAT32) cstr_index->tile_index[tileno].maxmarknum * 1.0F));
+                cstr_index->tile_index[tileno].maxmarknum = 100 + (OPJ_INT32) ((OPJ_FLOAT32) cstr_index->tile_index[tileno].maxmarknum * 1.0F);
                 new_marker = (opj_marker_info_t *) opj_realloc(
                                 cstr_index->tile_index[tileno].marker,
                                 cstr_index->tile_index[tileno].maxmarknum *sizeof(opj_marker_info_t));
@@ -7727,12 +7727,12 @@ OPJ_BOOL opj_j2k_update_image_data (opj_tcd_t * p_tcd, OPJ_BYTE * p_data, opj_im
                                 l_res->x0, l_res->x1, l_res->y0, l_res->y1);
                 }*/
 
-                l_width_src = (OPJ_UINT8)(l_res->x1 - l_res->x0);
-                l_height_src = (OPJ_UINT32)(l_res->y1 - l_res->y0);
+                l_width_src = (l_res->x1 - l_res->x0);
+                l_height_src = (l_res->y1 - l_res->y0);
 
                 /* Border of the current output component*/
-                l_x0_dest = (OPJ_UINT32)opj_int_ceildivpow2((OPJ_INT32)l_img_comp_dest->x0, (OPJ_INT32)l_img_comp_dest->factor);
-                l_y0_dest = (OPJ_UINT32)opj_int_ceildivpow2((OPJ_INT32)l_img_comp_dest->y0, (OPJ_INT32)l_img_comp_dest->factor);
+                l_x0_dest = opj_int_ceildivpow2(l_img_comp_dest->x0, l_img_comp_dest->factor);
+                l_y0_dest = opj_int_ceildivpow2(l_img_comp_dest->y0, l_img_comp_dest->factor);
                 l_x1_dest = l_x0_dest + l_img_comp_dest->w;
                 l_y1_dest = l_y0_dest + l_img_comp_dest->h;
 
@@ -7751,7 +7751,7 @@ OPJ_BOOL opj_j2k_update_image_data (opj_tcd_t * p_tcd, OPJ_BYTE * p_data, opj_im
                 assert( l_res->x0 >= 0);
                 assert( l_res->x1 >= 0);
                 if ( l_x0_dest < (OPJ_UINT32)l_res->x0 ) {
-                        l_start_x_dest = (OPJ_UINT32)l_res->x0 - l_x0_dest;
+                        l_start_x_dest = l_res->x0 - l_x0_dest;
                         l_offset_x0_src = 0;
 
                         if ( l_x1_dest >= (OPJ_UINT32)l_res->x1 ) {
@@ -7759,21 +7759,21 @@ OPJ_BOOL opj_j2k_update_image_data (opj_tcd_t * p_tcd, OPJ_BYTE * p_data, opj_im
                                 l_offset_x1_src = 0;
                         }
                         else {
-                                l_width_dest = l_x1_dest - (OPJ_UINT32)l_res->x0 ;
-                                l_offset_x1_src = (OPJ_INT32)(l_width_src - l_width_dest);
+                                l_width_dest = l_x1_dest - l_res->x0 ;
+                                l_offset_x1_src = l_width_src - l_width_dest;
                         }
                 }
                 else {
                         l_start_x_dest = 0 ;
-                        l_offset_x0_src = (OPJ_INT32)l_x0_dest - l_res->x0;
+                        l_offset_x0_src = l_x0_dest - l_res->x0;
 
                         if ( l_x1_dest >= (OPJ_UINT32)l_res->x1 ) {
-                                l_width_dest = l_width_src - (OPJ_UINT32)l_offset_x0_src;
+                                l_width_dest = l_width_src - l_offset_x0_src;
                                 l_offset_x1_src = 0;
                         }
                         else {
                                 l_width_dest = l_img_comp_dest->w ;
-                                l_offset_x1_src = l_res->x1 - (OPJ_INT32)l_x1_dest;
+                                l_offset_x1_src = l_res->x1 - l_x1_dest;
                         }
                 }