Move static function fill_filter_caches() from h264.h to h264.c.
authorDiego Biurrun <diego@biurrun.de>
Tue, 13 Apr 2010 22:15:49 +0000 (22:15 +0000)
committerDiego Biurrun <diego@biurrun.de>
Tue, 13 Apr 2010 22:15:49 +0000 (22:15 +0000)
The function is only used within that file, so it makes sense to place
it there. This fixes many warnings of the type:
h264.h:1170: warning: ‘fill_filter_caches’ defined but not used

Originally committed as revision 22876 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/h264.c
libavcodec/h264.h

index 9943ab9..faa7447 100644 (file)
@@ -2206,6 +2206,222 @@ int ff_h264_get_slice_type(const H264Context *h)
     }
 }
 
+/**
+ *
+ * @return non zero if the loop filter can be skiped
+ */
+static int fill_filter_caches(H264Context *h, int mb_type){
+    MpegEncContext * const s = &h->s;
+    const int mb_xy= h->mb_xy;
+    int top_xy, left_xy[2];
+    int top_type, left_type[2];
+
+    top_xy     = mb_xy  - (s->mb_stride << MB_FIELD);
+
+    //FIXME deblocking could skip the intra and nnz parts.
+
+    /* Wow, what a mess, why didn't they simplify the interlacing & intra
+     * stuff, I can't imagine that these complex rules are worth it. */
+
+    left_xy[1] = left_xy[0] = mb_xy-1;
+    if(FRAME_MBAFF){
+        const int left_mb_field_flag     = IS_INTERLACED(s->current_picture.mb_type[mb_xy-1]);
+        const int curr_mb_field_flag     = IS_INTERLACED(mb_type);
+        if(s->mb_y&1){
+            if (left_mb_field_flag != curr_mb_field_flag) {
+                left_xy[0] -= s->mb_stride;
+            }
+        }else{
+            if(curr_mb_field_flag){
+                top_xy      += s->mb_stride & (((s->current_picture.mb_type[top_xy    ]>>7)&1)-1);
+            }
+            if (left_mb_field_flag != curr_mb_field_flag) {
+                left_xy[1] += s->mb_stride;
+            }
+        }
+    }
+
+    h->top_mb_xy = top_xy;
+    h->left_mb_xy[0] = left_xy[0];
+    h->left_mb_xy[1] = left_xy[1];
+    {
+        //for sufficiently low qp, filtering wouldn't do anything
+        //this is a conservative estimate: could also check beta_offset and more accurate chroma_qp
+        int qp_thresh = h->qp_thresh; //FIXME strictly we should store qp_thresh for each mb of a slice
+        int qp = s->current_picture.qscale_table[mb_xy];
+        if(qp <= qp_thresh
+           && (left_xy[0]<0 || ((qp + s->current_picture.qscale_table[left_xy[0]] + 1)>>1) <= qp_thresh)
+           && (top_xy   < 0 || ((qp + s->current_picture.qscale_table[top_xy    ] + 1)>>1) <= qp_thresh)){
+            if(!FRAME_MBAFF)
+                return 1;
+            if(   (left_xy[0]< 0            || ((qp + s->current_picture.qscale_table[left_xy[1]             ] + 1)>>1) <= qp_thresh)
+               && (top_xy    < s->mb_stride || ((qp + s->current_picture.qscale_table[top_xy    -s->mb_stride] + 1)>>1) <= qp_thresh))
+                return 1;
+        }
+    }
+
+    top_type     = s->current_picture.mb_type[top_xy]    ;
+    left_type[0] = s->current_picture.mb_type[left_xy[0]];
+    left_type[1] = s->current_picture.mb_type[left_xy[1]];
+    if(h->deblocking_filter == 2){
+        if(h->slice_table[top_xy     ] != h->slice_num) top_type= 0;
+        if(h->slice_table[left_xy[0] ] != h->slice_num) left_type[0]= left_type[1]= 0;
+    }else{
+        if(h->slice_table[top_xy     ] == 0xFFFF) top_type= 0;
+        if(h->slice_table[left_xy[0] ] == 0xFFFF) left_type[0]= left_type[1] =0;
+    }
+    h->top_type    = top_type    ;
+    h->left_type[0]= left_type[0];
+    h->left_type[1]= left_type[1];
+
+    if(IS_INTRA(mb_type))
+        return 0;
+
+    AV_COPY64(&h->non_zero_count_cache[0+8*1], &h->non_zero_count[mb_xy][ 0]);
+    AV_COPY64(&h->non_zero_count_cache[0+8*2], &h->non_zero_count[mb_xy][ 8]);
+    AV_COPY32(&h->non_zero_count_cache[0+8*5], &h->non_zero_count[mb_xy][16]);
+    AV_COPY32(&h->non_zero_count_cache[4+8*3], &h->non_zero_count[mb_xy][20]);
+    AV_COPY64(&h->non_zero_count_cache[0+8*4], &h->non_zero_count[mb_xy][24]);
+
+    h->cbp= h->cbp_table[mb_xy];
+
+    {
+        int list;
+        for(list=0; list<h->list_count; list++){
+            int8_t *ref;
+            int y, b_stride;
+            int16_t (*mv_dst)[2];
+            int16_t (*mv_src)[2];
+
+            if(!USES_LIST(mb_type, list)){
+                fill_rectangle(  h->mv_cache[list][scan8[0]], 4, 4, 8, pack16to32(0,0), 4);
+                AV_WN32A(&h->ref_cache[list][scan8[ 0]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
+                AV_WN32A(&h->ref_cache[list][scan8[ 2]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
+                AV_WN32A(&h->ref_cache[list][scan8[ 8]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
+                AV_WN32A(&h->ref_cache[list][scan8[10]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
+                continue;
+            }
+
+            ref = &s->current_picture.ref_index[list][4*mb_xy];
+            {
+                int (*ref2frm)[64] = h->ref2frm[ h->slice_num&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
+                AV_WN32A(&h->ref_cache[list][scan8[ 0]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
+                AV_WN32A(&h->ref_cache[list][scan8[ 2]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
+                ref += 2;
+                AV_WN32A(&h->ref_cache[list][scan8[ 8]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
+                AV_WN32A(&h->ref_cache[list][scan8[10]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
+            }
+
+            b_stride = h->b_stride;
+            mv_dst   = &h->mv_cache[list][scan8[0]];
+            mv_src   = &s->current_picture.motion_val[list][4*s->mb_x + 4*s->mb_y*b_stride];
+            for(y=0; y<4; y++){
+                AV_COPY128(mv_dst + 8*y, mv_src + y*b_stride);
+            }
+
+        }
+    }
+
+
+/*
+0 . T T. T T T T
+1 L . .L . . . .
+2 L . .L . . . .
+3 . T TL . . . .
+4 L . .L . . . .
+5 L . .. . . . .
+*/
+//FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)
+    if(top_type){
+        AV_COPY32(&h->non_zero_count_cache[4+8*0], &h->non_zero_count[top_xy][4+3*8]);
+    }
+
+    if(left_type[0]){
+        h->non_zero_count_cache[3+8*1]= h->non_zero_count[left_xy[0]][7+0*8];
+        h->non_zero_count_cache[3+8*2]= h->non_zero_count[left_xy[0]][7+1*8];
+        h->non_zero_count_cache[3+8*3]= h->non_zero_count[left_xy[0]][7+2*8];
+        h->non_zero_count_cache[3+8*4]= h->non_zero_count[left_xy[0]][7+3*8];
+    }
+
+    // CAVLC 8x8dct requires NNZ values for residual decoding that differ from what the loop filter needs
+    if(!CABAC && h->pps.transform_8x8_mode){
+        if(IS_8x8DCT(top_type)){
+            h->non_zero_count_cache[4+8*0]=
+            h->non_zero_count_cache[5+8*0]= h->cbp_table[top_xy] & 4;
+            h->non_zero_count_cache[6+8*0]=
+            h->non_zero_count_cache[7+8*0]= h->cbp_table[top_xy] & 8;
+        }
+        if(IS_8x8DCT(left_type[0])){
+            h->non_zero_count_cache[3+8*1]=
+            h->non_zero_count_cache[3+8*2]= h->cbp_table[left_xy[0]]&2; //FIXME check MBAFF
+        }
+        if(IS_8x8DCT(left_type[1])){
+            h->non_zero_count_cache[3+8*3]=
+            h->non_zero_count_cache[3+8*4]= h->cbp_table[left_xy[1]]&8; //FIXME check MBAFF
+        }
+
+        if(IS_8x8DCT(mb_type)){
+            h->non_zero_count_cache[scan8[0   ]]= h->non_zero_count_cache[scan8[1   ]]=
+            h->non_zero_count_cache[scan8[2   ]]= h->non_zero_count_cache[scan8[3   ]]= h->cbp & 1;
+
+            h->non_zero_count_cache[scan8[0+ 4]]= h->non_zero_count_cache[scan8[1+ 4]]=
+            h->non_zero_count_cache[scan8[2+ 4]]= h->non_zero_count_cache[scan8[3+ 4]]= h->cbp & 2;
+
+            h->non_zero_count_cache[scan8[0+ 8]]= h->non_zero_count_cache[scan8[1+ 8]]=
+            h->non_zero_count_cache[scan8[2+ 8]]= h->non_zero_count_cache[scan8[3+ 8]]= h->cbp & 4;
+
+            h->non_zero_count_cache[scan8[0+12]]= h->non_zero_count_cache[scan8[1+12]]=
+            h->non_zero_count_cache[scan8[2+12]]= h->non_zero_count_cache[scan8[3+12]]= h->cbp & 8;
+        }
+    }
+
+    if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
+        int list;
+        for(list=0; list<h->list_count; list++){
+            if(USES_LIST(top_type, list)){
+                const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
+                const int b8_xy= 4*top_xy + 2;
+                int (*ref2frm)[64] = h->ref2frm[ h->slice_table[top_xy]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
+                AV_COPY128(h->mv_cache[list][scan8[0] + 0 - 1*8], s->current_picture.motion_val[list][b_xy + 0]);
+                h->ref_cache[list][scan8[0] + 0 - 1*8]=
+                h->ref_cache[list][scan8[0] + 1 - 1*8]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 0]];
+                h->ref_cache[list][scan8[0] + 2 - 1*8]=
+                h->ref_cache[list][scan8[0] + 3 - 1*8]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 1]];
+            }else{
+                AV_ZERO128(h->mv_cache[list][scan8[0] + 0 - 1*8]);
+                AV_WN32A(&h->ref_cache[list][scan8[0] + 0 - 1*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
+            }
+
+            if(!IS_INTERLACED(mb_type^left_type[0])){
+                if(USES_LIST(left_type[0], list)){
+                    const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
+                    const int b8_xy= 4*left_xy[0] + 1;
+                    int (*ref2frm)[64] = h->ref2frm[ h->slice_table[left_xy[0]]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
+                    AV_COPY32(h->mv_cache[list][scan8[0] - 1 + 0 ], s->current_picture.motion_val[list][b_xy + h->b_stride*0]);
+                    AV_COPY32(h->mv_cache[list][scan8[0] - 1 + 8 ], s->current_picture.motion_val[list][b_xy + h->b_stride*1]);
+                    AV_COPY32(h->mv_cache[list][scan8[0] - 1 +16 ], s->current_picture.motion_val[list][b_xy + h->b_stride*2]);
+                    AV_COPY32(h->mv_cache[list][scan8[0] - 1 +24 ], s->current_picture.motion_val[list][b_xy + h->b_stride*3]);
+                    h->ref_cache[list][scan8[0] - 1 + 0 ]=
+                    h->ref_cache[list][scan8[0] - 1 + 8 ]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 2*0]];
+                    h->ref_cache[list][scan8[0] - 1 +16 ]=
+                    h->ref_cache[list][scan8[0] - 1 +24 ]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 2*1]];
+                }else{
+                    AV_ZERO32(h->mv_cache [list][scan8[0] - 1 + 0 ]);
+                    AV_ZERO32(h->mv_cache [list][scan8[0] - 1 + 8 ]);
+                    AV_ZERO32(h->mv_cache [list][scan8[0] - 1 +16 ]);
+                    AV_ZERO32(h->mv_cache [list][scan8[0] - 1 +24 ]);
+                    h->ref_cache[list][scan8[0] - 1 + 0  ]=
+                    h->ref_cache[list][scan8[0] - 1 + 8  ]=
+                    h->ref_cache[list][scan8[0] - 1 + 16 ]=
+                    h->ref_cache[list][scan8[0] - 1 + 24 ]= LIST_NOT_USED;
+                }
+            }
+        }
+    }
+
+    return 0;
+}
+
 static void loop_filter(H264Context *h){
     MpegEncContext * const s = &h->s;
     uint8_t  *dest_y, *dest_cb, *dest_cr;
index 0c9402d..ec3a94f 100644 (file)
@@ -1163,222 +1163,6 @@ static void fill_decode_caches(H264Context *h, int mb_type){
         h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]);
 }
 
-/**
- *
- * @return non zero if the loop filter can be skiped
- */
-static int fill_filter_caches(H264Context *h, int mb_type){
-    MpegEncContext * const s = &h->s;
-    const int mb_xy= h->mb_xy;
-    int top_xy, left_xy[2];
-    int top_type, left_type[2];
-
-    top_xy     = mb_xy  - (s->mb_stride << MB_FIELD);
-
-    //FIXME deblocking could skip the intra and nnz parts.
-
-    /* Wow, what a mess, why didn't they simplify the interlacing & intra
-     * stuff, I can't imagine that these complex rules are worth it. */
-
-    left_xy[1] = left_xy[0] = mb_xy-1;
-    if(FRAME_MBAFF){
-        const int left_mb_field_flag     = IS_INTERLACED(s->current_picture.mb_type[mb_xy-1]);
-        const int curr_mb_field_flag     = IS_INTERLACED(mb_type);
-        if(s->mb_y&1){
-            if (left_mb_field_flag != curr_mb_field_flag) {
-                left_xy[0] -= s->mb_stride;
-            }
-        }else{
-            if(curr_mb_field_flag){
-                top_xy      += s->mb_stride & (((s->current_picture.mb_type[top_xy    ]>>7)&1)-1);
-            }
-            if (left_mb_field_flag != curr_mb_field_flag) {
-                left_xy[1] += s->mb_stride;
-            }
-        }
-    }
-
-    h->top_mb_xy = top_xy;
-    h->left_mb_xy[0] = left_xy[0];
-    h->left_mb_xy[1] = left_xy[1];
-    {
-        //for sufficiently low qp, filtering wouldn't do anything
-        //this is a conservative estimate: could also check beta_offset and more accurate chroma_qp
-        int qp_thresh = h->qp_thresh; //FIXME strictly we should store qp_thresh for each mb of a slice
-        int qp = s->current_picture.qscale_table[mb_xy];
-        if(qp <= qp_thresh
-           && (left_xy[0]<0 || ((qp + s->current_picture.qscale_table[left_xy[0]] + 1)>>1) <= qp_thresh)
-           && (top_xy   < 0 || ((qp + s->current_picture.qscale_table[top_xy    ] + 1)>>1) <= qp_thresh)){
-            if(!FRAME_MBAFF)
-                return 1;
-            if(   (left_xy[0]< 0            || ((qp + s->current_picture.qscale_table[left_xy[1]             ] + 1)>>1) <= qp_thresh)
-               && (top_xy    < s->mb_stride || ((qp + s->current_picture.qscale_table[top_xy    -s->mb_stride] + 1)>>1) <= qp_thresh))
-                return 1;
-        }
-    }
-
-    top_type     = s->current_picture.mb_type[top_xy]    ;
-    left_type[0] = s->current_picture.mb_type[left_xy[0]];
-    left_type[1] = s->current_picture.mb_type[left_xy[1]];
-    if(h->deblocking_filter == 2){
-        if(h->slice_table[top_xy     ] != h->slice_num) top_type= 0;
-        if(h->slice_table[left_xy[0] ] != h->slice_num) left_type[0]= left_type[1]= 0;
-    }else{
-        if(h->slice_table[top_xy     ] == 0xFFFF) top_type= 0;
-        if(h->slice_table[left_xy[0] ] == 0xFFFF) left_type[0]= left_type[1] =0;
-    }
-    h->top_type    = top_type    ;
-    h->left_type[0]= left_type[0];
-    h->left_type[1]= left_type[1];
-
-    if(IS_INTRA(mb_type))
-        return 0;
-
-    AV_COPY64(&h->non_zero_count_cache[0+8*1], &h->non_zero_count[mb_xy][ 0]);
-    AV_COPY64(&h->non_zero_count_cache[0+8*2], &h->non_zero_count[mb_xy][ 8]);
-    AV_COPY32(&h->non_zero_count_cache[0+8*5], &h->non_zero_count[mb_xy][16]);
-    AV_COPY32(&h->non_zero_count_cache[4+8*3], &h->non_zero_count[mb_xy][20]);
-    AV_COPY64(&h->non_zero_count_cache[0+8*4], &h->non_zero_count[mb_xy][24]);
-
-    h->cbp= h->cbp_table[mb_xy];
-
-    {
-        int list;
-        for(list=0; list<h->list_count; list++){
-            int8_t *ref;
-            int y, b_stride;
-            int16_t (*mv_dst)[2];
-            int16_t (*mv_src)[2];
-
-            if(!USES_LIST(mb_type, list)){
-                fill_rectangle(  h->mv_cache[list][scan8[0]], 4, 4, 8, pack16to32(0,0), 4);
-                AV_WN32A(&h->ref_cache[list][scan8[ 0]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
-                AV_WN32A(&h->ref_cache[list][scan8[ 2]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
-                AV_WN32A(&h->ref_cache[list][scan8[ 8]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
-                AV_WN32A(&h->ref_cache[list][scan8[10]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
-                continue;
-            }
-
-            ref = &s->current_picture.ref_index[list][4*mb_xy];
-            {
-                int (*ref2frm)[64] = h->ref2frm[ h->slice_num&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
-                AV_WN32A(&h->ref_cache[list][scan8[ 0]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
-                AV_WN32A(&h->ref_cache[list][scan8[ 2]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
-                ref += 2;
-                AV_WN32A(&h->ref_cache[list][scan8[ 8]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
-                AV_WN32A(&h->ref_cache[list][scan8[10]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
-            }
-
-            b_stride = h->b_stride;
-            mv_dst   = &h->mv_cache[list][scan8[0]];
-            mv_src   = &s->current_picture.motion_val[list][4*s->mb_x + 4*s->mb_y*b_stride];
-            for(y=0; y<4; y++){
-                AV_COPY128(mv_dst + 8*y, mv_src + y*b_stride);
-            }
-
-        }
-    }
-
-
-/*
-0 . T T. T T T T
-1 L . .L . . . .
-2 L . .L . . . .
-3 . T TL . . . .
-4 L . .L . . . .
-5 L . .. . . . .
-*/
-//FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)
-    if(top_type){
-        AV_COPY32(&h->non_zero_count_cache[4+8*0], &h->non_zero_count[top_xy][4+3*8]);
-    }
-
-    if(left_type[0]){
-        h->non_zero_count_cache[3+8*1]= h->non_zero_count[left_xy[0]][7+0*8];
-        h->non_zero_count_cache[3+8*2]= h->non_zero_count[left_xy[0]][7+1*8];
-        h->non_zero_count_cache[3+8*3]= h->non_zero_count[left_xy[0]][7+2*8];
-        h->non_zero_count_cache[3+8*4]= h->non_zero_count[left_xy[0]][7+3*8];
-    }
-
-    // CAVLC 8x8dct requires NNZ values for residual decoding that differ from what the loop filter needs
-    if(!CABAC && h->pps.transform_8x8_mode){
-        if(IS_8x8DCT(top_type)){
-            h->non_zero_count_cache[4+8*0]=
-            h->non_zero_count_cache[5+8*0]= h->cbp_table[top_xy] & 4;
-            h->non_zero_count_cache[6+8*0]=
-            h->non_zero_count_cache[7+8*0]= h->cbp_table[top_xy] & 8;
-        }
-        if(IS_8x8DCT(left_type[0])){
-            h->non_zero_count_cache[3+8*1]=
-            h->non_zero_count_cache[3+8*2]= h->cbp_table[left_xy[0]]&2; //FIXME check MBAFF
-        }
-        if(IS_8x8DCT(left_type[1])){
-            h->non_zero_count_cache[3+8*3]=
-            h->non_zero_count_cache[3+8*4]= h->cbp_table[left_xy[1]]&8; //FIXME check MBAFF
-        }
-
-        if(IS_8x8DCT(mb_type)){
-            h->non_zero_count_cache[scan8[0   ]]= h->non_zero_count_cache[scan8[1   ]]=
-            h->non_zero_count_cache[scan8[2   ]]= h->non_zero_count_cache[scan8[3   ]]= h->cbp & 1;
-
-            h->non_zero_count_cache[scan8[0+ 4]]= h->non_zero_count_cache[scan8[1+ 4]]=
-            h->non_zero_count_cache[scan8[2+ 4]]= h->non_zero_count_cache[scan8[3+ 4]]= h->cbp & 2;
-
-            h->non_zero_count_cache[scan8[0+ 8]]= h->non_zero_count_cache[scan8[1+ 8]]=
-            h->non_zero_count_cache[scan8[2+ 8]]= h->non_zero_count_cache[scan8[3+ 8]]= h->cbp & 4;
-
-            h->non_zero_count_cache[scan8[0+12]]= h->non_zero_count_cache[scan8[1+12]]=
-            h->non_zero_count_cache[scan8[2+12]]= h->non_zero_count_cache[scan8[3+12]]= h->cbp & 8;
-        }
-    }
-
-    if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
-        int list;
-        for(list=0; list<h->list_count; list++){
-            if(USES_LIST(top_type, list)){
-                const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
-                const int b8_xy= 4*top_xy + 2;
-                int (*ref2frm)[64] = h->ref2frm[ h->slice_table[top_xy]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
-                AV_COPY128(h->mv_cache[list][scan8[0] + 0 - 1*8], s->current_picture.motion_val[list][b_xy + 0]);
-                h->ref_cache[list][scan8[0] + 0 - 1*8]=
-                h->ref_cache[list][scan8[0] + 1 - 1*8]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 0]];
-                h->ref_cache[list][scan8[0] + 2 - 1*8]=
-                h->ref_cache[list][scan8[0] + 3 - 1*8]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 1]];
-            }else{
-                AV_ZERO128(h->mv_cache[list][scan8[0] + 0 - 1*8]);
-                AV_WN32A(&h->ref_cache[list][scan8[0] + 0 - 1*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
-            }
-
-            if(!IS_INTERLACED(mb_type^left_type[0])){
-                if(USES_LIST(left_type[0], list)){
-                    const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
-                    const int b8_xy= 4*left_xy[0] + 1;
-                    int (*ref2frm)[64] = h->ref2frm[ h->slice_table[left_xy[0]]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
-                    AV_COPY32(h->mv_cache[list][scan8[0] - 1 + 0 ], s->current_picture.motion_val[list][b_xy + h->b_stride*0]);
-                    AV_COPY32(h->mv_cache[list][scan8[0] - 1 + 8 ], s->current_picture.motion_val[list][b_xy + h->b_stride*1]);
-                    AV_COPY32(h->mv_cache[list][scan8[0] - 1 +16 ], s->current_picture.motion_val[list][b_xy + h->b_stride*2]);
-                    AV_COPY32(h->mv_cache[list][scan8[0] - 1 +24 ], s->current_picture.motion_val[list][b_xy + h->b_stride*3]);
-                    h->ref_cache[list][scan8[0] - 1 + 0 ]=
-                    h->ref_cache[list][scan8[0] - 1 + 8 ]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 2*0]];
-                    h->ref_cache[list][scan8[0] - 1 +16 ]=
-                    h->ref_cache[list][scan8[0] - 1 +24 ]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 2*1]];
-                }else{
-                    AV_ZERO32(h->mv_cache [list][scan8[0] - 1 + 0 ]);
-                    AV_ZERO32(h->mv_cache [list][scan8[0] - 1 + 8 ]);
-                    AV_ZERO32(h->mv_cache [list][scan8[0] - 1 +16 ]);
-                    AV_ZERO32(h->mv_cache [list][scan8[0] - 1 +24 ]);
-                    h->ref_cache[list][scan8[0] - 1 + 0  ]=
-                    h->ref_cache[list][scan8[0] - 1 + 8  ]=
-                    h->ref_cache[list][scan8[0] - 1 + 16 ]=
-                    h->ref_cache[list][scan8[0] - 1 + 24 ]= LIST_NOT_USED;
-                }
-            }
-        }
-    }
-
-    return 0;
-}
-
 /**
  * gets the predicted intra4x4 prediction mode.
  */