Split motion vector prediction off h264.c/h.

Originally committed as revision 21174 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 0 insertions, 114 deletions

diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index 883012159d..1c4c956056 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -694,118 +694,4 @@ static inline int get_chroma_qp(H264Context *h, int t, int qscale){
     return h->pps.chroma_qp_table[t][qscale];
 }
 
-static inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, int list, int part_width){
-    const int topright_ref= h->ref_cache[list][ i - 8 + part_width ];
-    MpegEncContext *s = &h->s;
-
-    /* there is no consistent mapping of mvs to neighboring locations that will
-     * make mbaff happy, so we can't move all this logic to fill_caches */
-    if(FRAME_MBAFF){
-        const uint32_t *mb_types = s->current_picture_ptr->mb_type;
-        const int16_t *mv;
-        *(uint32_t*)h->mv_cache[list][scan8[0]-2] = 0;
-        *C = h->mv_cache[list][scan8[0]-2];
-
-        if(!MB_FIELD
-           && (s->mb_y&1) && i < scan8[0]+8 && topright_ref != PART_NOT_AVAILABLE){
-            int topright_xy = s->mb_x + (s->mb_y-1)*s->mb_stride + (i == scan8[0]+3);
-            if(IS_INTERLACED(mb_types[topright_xy])){
-#define SET_DIAG_MV(MV_OP, REF_OP, X4, Y4)\
-                const int x4 = X4, y4 = Y4;\
-                const int mb_type = mb_types[(x4>>2)+(y4>>2)*s->mb_stride];\
-                if(!USES_LIST(mb_type,list))\
-                    return LIST_NOT_USED;\
-                mv = s->current_picture_ptr->motion_val[list][x4 + y4*h->b_stride];\
-                h->mv_cache[list][scan8[0]-2][0] = mv[0];\
-                h->mv_cache[list][scan8[0]-2][1] = mv[1] MV_OP;\
-                return s->current_picture_ptr->ref_index[list][(x4>>1) + (y4>>1)*h->b8_stride] REF_OP;
-
-                SET_DIAG_MV(*2, >>1, s->mb_x*4+(i&7)-4+part_width, s->mb_y*4-1);
-            }
-        }
-        if(topright_ref == PART_NOT_AVAILABLE
-           && ((s->mb_y&1) || i >= scan8[0]+8) && (i&7)==4
-           && h->ref_cache[list][scan8[0]-1] != PART_NOT_AVAILABLE){
-            if(!MB_FIELD
-               && IS_INTERLACED(mb_types[h->left_mb_xy[0]])){
-                SET_DIAG_MV(*2, >>1, s->mb_x*4-1, (s->mb_y|1)*4+(s->mb_y&1)*2+(i>>4)-1);
-            }
-            if(MB_FIELD
-               && !IS_INTERLACED(mb_types[h->left_mb_xy[0]])
-               && i >= scan8[0]+8){
-                // left shift will turn LIST_NOT_USED into PART_NOT_AVAILABLE, but that's OK.
-                SET_DIAG_MV(/2, <<1, s->mb_x*4-1, (s->mb_y&~1)*4 - 1 + ((i-scan8[0])>>3)*2);
-            }
-        }
-#undef SET_DIAG_MV
-    }
-
-    if(topright_ref != PART_NOT_AVAILABLE){
-        *C= h->mv_cache[list][ i - 8 + part_width ];
-        return topright_ref;
-    }else{
-        tprintf(s->avctx, "topright MV not available\n");
-
-        *C= h->mv_cache[list][ i - 8 - 1 ];
-        return h->ref_cache[list][ i - 8 - 1 ];
-    }
-}
-
-/**
- * gets the predicted MV.
- * @param n the block index
- * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4)
- * @param mx the x component of the predicted motion vector
- * @param my the y component of the predicted motion vector
- */
-static inline void pred_motion(H264Context * const h, int n, int part_width, int list, int ref, int * const mx, int * const my){
-    const int index8= scan8[n];
-    const int top_ref=      h->ref_cache[list][ index8 - 8 ];
-    const int left_ref=     h->ref_cache[list][ index8 - 1 ];
-    const int16_t * const A= h->mv_cache[list][ index8 - 1 ];
-    const int16_t * const B= h->mv_cache[list][ index8 - 8 ];
-    const int16_t * C;
-    int diagonal_ref, match_count;
-
-    assert(part_width==1 || part_width==2 || part_width==4);
-
-/* mv_cache
-  B . . A T T T T
-  U . . L . . , .
-  U . . L . . . .
-  U . . L . . , .
-  . . . L . . . .
-*/
-
-    diagonal_ref= fetch_diagonal_mv(h, &C, index8, list, part_width);
-    match_count= (diagonal_ref==ref) + (top_ref==ref) + (left_ref==ref);
-    tprintf(h->s.avctx, "pred_motion match_count=%d\n", match_count);
-    if(match_count > 1){ //most common
-        *mx= mid_pred(A[0], B[0], C[0]);
-        *my= mid_pred(A[1], B[1], C[1]);
-    }else if(match_count==1){
-        if(left_ref==ref){
-            *mx= A[0];
-            *my= A[1];
-        }else if(top_ref==ref){
-            *mx= B[0];
-            *my= B[1];
-        }else{
-            *mx= C[0];
-            *my= C[1];
-        }
-    }else{
-        if(top_ref == PART_NOT_AVAILABLE && diagonal_ref == PART_NOT_AVAILABLE && left_ref != PART_NOT_AVAILABLE){
-            *mx= A[0];
-            *my= A[1];
-        }else{
-            *mx= mid_pred(A[0], B[0], C[0]);
-            *my= mid_pred(A[1], B[1], C[1]);
-        }
-    }
-
-    tprintf(h->s.avctx, "pred_motion (%2d %2d %2d) (%2d %2d %2d) (%2d %2d %2d) -> (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1],                    diagonal_ref, C[0], C[1], left_ref, A[0], A[1], ref, *mx, *my, h->s.mb_x, h->s.mb_y, n, list);
-}
-
-
 #endif /* AVCODEC_H264_H */