chasing indexing error

1 files changed, 0 insertions, 628 deletions

diff --git a/ffmpeg/libavcodec/h264_direct.c b/ffmpeg/libavcodec/h264_direct.c
deleted file mode 100644
index 477359c..0000000
--- a/ffmpeg/libavcodec/h264_direct.c
+++ /dev/null
@@ -1,628 +0,0 @@
-/*
- * H.26L/H.264/AVC/JVT/14496-10/... direct mb/block decoding
- * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * H.264 / AVC / MPEG4 part10 direct mb/block decoding.
- * @author Michael Niedermayer <michaelni@gmx.at>
- */
-
-#include "internal.h"
-#include "avcodec.h"
-#include "mpegvideo.h"
-#include "h264.h"
-#include "rectangle.h"
-#include "thread.h"
-
-#include <assert.h>
-
-
-static int get_scale_factor(H264Context * const h, int poc, int poc1, int i){
-    int poc0 = h->ref_list[0][i].poc;
-    int td = av_clip(poc1 - poc0, -128, 127);
-    if(td == 0 || h->ref_list[0][i].long_ref){
-        return 256;
-    }else{
-        int tb = av_clip(poc - poc0, -128, 127);
-        int tx = (16384 + (FFABS(td) >> 1)) / td;
-        return av_clip((tb*tx + 32) >> 6, -1024, 1023);
-    }
-}
-
-void ff_h264_direct_dist_scale_factor(H264Context * const h){
-    const int poc = h->cur_pic_ptr->field_poc[h->picture_structure == PICT_BOTTOM_FIELD];
-    const int poc1 = h->ref_list[1][0].poc;
-    int i, field;
-
-    if (FRAME_MBAFF(h))
-        for (field = 0; field < 2; field++){
-            const int poc  = h->cur_pic_ptr->field_poc[field];
-            const int poc1 = h->ref_list[1][0].field_poc[field];
-            for (i = 0; i < 2 * h->ref_count[0]; i++)
-                h->dist_scale_factor_field[field][i^field] =
-                    get_scale_factor(h, poc, poc1, i+16);
-        }
-
-    for (i = 0; i < h->ref_count[0]; i++){
-        h->dist_scale_factor[i] = get_scale_factor(h, poc, poc1, i);
-    }
-}
-
-static void fill_colmap(H264Context *h, int map[2][16+32], int list, int field, int colfield, int mbafi){
-    Picture * const ref1 = &h->ref_list[1][0];
-    int j, old_ref, rfield;
-    int start= mbafi ? 16                      : 0;
-    int end  = mbafi ? 16+2*h->ref_count[0]    : h->ref_count[0];
-    int interl= mbafi || h->picture_structure != PICT_FRAME;
-
-    /* bogus; fills in for missing frames */
-    memset(map[list], 0, sizeof(map[list]));
-
-    for(rfield=0; rfield<2; rfield++){
-        for(old_ref=0; old_ref<ref1->ref_count[colfield][list]; old_ref++){
-            int poc = ref1->ref_poc[colfield][list][old_ref];
-
-            if     (!interl)
-                poc |= 3;
-            else if( interl && (poc&3) == 3) // FIXME: store all MBAFF references so this is not needed
-                poc= (poc&~3) + rfield + 1;
-
-            for(j=start; j<end; j++){
-                if (4 * h->ref_list[0][j].frame_num + (h->ref_list[0][j].reference & 3) == poc) {
-                    int cur_ref= mbafi ? (j-16)^field : j;
-                    if (ref1->mbaff)
-                        map[list][2 * old_ref + (rfield^field) + 16] = cur_ref;
-                    if(rfield == field || !interl)
-                        map[list][old_ref] = cur_ref;
-                    break;
-                }
-            }
-        }
-    }
-}
-
-void ff_h264_direct_ref_list_init(H264Context * const h){
-    Picture * const ref1 = &h->ref_list[1][0];
-    Picture * const cur = h->cur_pic_ptr;
-    int list, j, field;
-    int sidx= (h->picture_structure&1)^1;
-    int ref1sidx = (ref1->reference&1)^1;
-
-    for(list=0; list<2; list++){
-        cur->ref_count[sidx][list] = h->ref_count[list];
-        for(j=0; j<h->ref_count[list]; j++)
-            cur->ref_poc[sidx][list][j] = 4 * h->ref_list[list][j].frame_num + (h->ref_list[list][j].reference & 3);
-    }
-
-    if(h->picture_structure == PICT_FRAME){
-        memcpy(cur->ref_count[1], cur->ref_count[0], sizeof(cur->ref_count[0]));
-        memcpy(cur->ref_poc  [1], cur->ref_poc  [0], sizeof(cur->ref_poc  [0]));
-    }
-
-    cur->mbaff = FRAME_MBAFF(h);
-
-    h->col_fieldoff= 0;
-    if(h->picture_structure == PICT_FRAME){
-        int cur_poc = h->cur_pic_ptr->poc;
-        int *col_poc = h->ref_list[1]->field_poc;
-        h->col_parity= (FFABS(col_poc[0] - cur_poc) >= FFABS(col_poc[1] - cur_poc));
-        ref1sidx=sidx= h->col_parity;
-    } else if (!(h->picture_structure & h->ref_list[1][0].reference) && !h->ref_list[1][0].mbaff) { // FL -> FL & differ parity
-        h->col_fieldoff = 2 * h->ref_list[1][0].reference - 3;
-    }
-
-    if (h->slice_type_nos != AV_PICTURE_TYPE_B || h->direct_spatial_mv_pred)
-        return;
-
-    for(list=0; list<2; list++){
-        fill_colmap(h, h->map_col_to_list0, list, sidx, ref1sidx, 0);
-        if (FRAME_MBAFF(h))
-        for(field=0; field<2; field++)
-            fill_colmap(h, h->map_col_to_list0_field[field], list, field, field, 1);
-    }
-}
-
-static void await_reference_mb_row(H264Context * const h, Picture *ref, int mb_y)
-{
-    int ref_field = ref->reference - 1;
-    int ref_field_picture = ref->field_picture;
-    int ref_height = 16*h->mb_height >> ref_field_picture;
-
-    if(!HAVE_THREADS || !(h->avctx->active_thread_type&FF_THREAD_FRAME))
-        return;
-
-    //FIXME it can be safe to access mb stuff
-    //even if pixels aren't deblocked yet
-
-    ff_thread_await_progress(&ref->tf,
-                             FFMIN(16 * mb_y >> ref_field_picture, ref_height - 1),
-                             ref_field_picture && ref_field);
-}
-
-static void pred_spatial_direct_motion(H264Context * const h, int *mb_type){
-    int b8_stride = 2;
-    int b4_stride = h->b_stride;
-    int mb_xy = h->mb_xy, mb_y = h->mb_y;
-    int mb_type_col[2];
-    const int16_t (*l1mv0)[2], (*l1mv1)[2];
-    const int8_t *l1ref0, *l1ref1;
-    const int is_b8x8 = IS_8X8(*mb_type);
-    unsigned int sub_mb_type= MB_TYPE_L0L1;
-    int i8, i4;
-    int ref[2];
-    int mv[2];
-    int list;
-
-    assert(h->ref_list[1][0].reference & 3);
-
-    await_reference_mb_row(h, &h->ref_list[1][0], h->mb_y + !!IS_INTERLACED(*mb_type));
-
-#define MB_TYPE_16x16_OR_INTRA (MB_TYPE_16x16|MB_TYPE_INTRA4x4|MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM)
-
-
-    /* ref = min(neighbors) */
-    for(list=0; list<2; list++){
-        int left_ref = h->ref_cache[list][scan8[0] - 1];
-        int top_ref  = h->ref_cache[list][scan8[0] - 8];
-        int refc = h->ref_cache[list][scan8[0] - 8 + 4];
-        const int16_t *C= h->mv_cache[list][ scan8[0] - 8 + 4];
-        if(refc == PART_NOT_AVAILABLE){
-            refc = h->ref_cache[list][scan8[0] - 8 - 1];
-            C    = h-> mv_cache[list][scan8[0] - 8 - 1];
-        }
-        ref[list] = FFMIN3((unsigned)left_ref, (unsigned)top_ref, (unsigned)refc);
-        if(ref[list] >= 0){
-            //this is just pred_motion() but with the cases removed that cannot happen for direct blocks
-            const int16_t * const A= h->mv_cache[list][ scan8[0] - 1 ];
-            const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ];
-
-            int match_count= (left_ref==ref[list]) + (top_ref==ref[list]) + (refc==ref[list]);
-            if(match_count > 1){ //most common
-                mv[list]= pack16to32(mid_pred(A[0], B[0], C[0]),
-                                     mid_pred(A[1], B[1], C[1]) );
-            }else {
-                assert(match_count==1);
-                if(left_ref==ref[list]){
-                    mv[list]= AV_RN32A(A);
-                }else if(top_ref==ref[list]){
-                    mv[list]= AV_RN32A(B);
-                }else{
-                    mv[list]= AV_RN32A(C);
-                }
-            }
-            av_assert2(ref[list] < (h->ref_count[list] << !!FRAME_MBAFF(h)));
-        }else{
-            int mask= ~(MB_TYPE_L0 << (2*list));
-            mv[list] = 0;
-            ref[list] = -1;
-            if(!is_b8x8)
-                *mb_type &= mask;
-            sub_mb_type &= mask;
-        }
-    }
-    if(ref[0] < 0 && ref[1] < 0){
-        ref[0] = ref[1] = 0;
-        if(!is_b8x8)
-            *mb_type |= MB_TYPE_L0L1;
-        sub_mb_type |= MB_TYPE_L0L1;
-    }
-
-    if(!(is_b8x8|mv[0]|mv[1])){
-        fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
-        fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
-        fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, 0, 4);
-        fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, 0, 4);
-        *mb_type= (*mb_type & ~(MB_TYPE_8x8|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_P1L0|MB_TYPE_P1L1))|MB_TYPE_16x16|MB_TYPE_DIRECT2;
-        return;
-    }
-
-    if (IS_INTERLACED(h->ref_list[1][0].mb_type[mb_xy])) { // AFL/AFR/FR/FL -> AFL/FL
-        if (!IS_INTERLACED(*mb_type)) {                          //     AFR/FR    -> AFL/FL
-            mb_y = (h->mb_y&~1) + h->col_parity;
-            mb_xy= h->mb_x + ((h->mb_y&~1) + h->col_parity)*h->mb_stride;
-            b8_stride = 0;
-        }else{
-            mb_y  += h->col_fieldoff;
-            mb_xy += h->mb_stride*h->col_fieldoff; // non zero for FL -> FL & differ parity
-        }
-        goto single_col;
-    }else{                                               // AFL/AFR/FR/FL -> AFR/FR
-        if(IS_INTERLACED(*mb_type)){                     // AFL       /FL -> AFR/FR
-            mb_y = h->mb_y&~1;
-            mb_xy= h->mb_x + (h->mb_y&~1)*h->mb_stride;
-            mb_type_col[0] = h->ref_list[1][0].mb_type[mb_xy];
-            mb_type_col[1] = h->ref_list[1][0].mb_type[mb_xy + h->mb_stride];
-            b8_stride = 2+4*h->mb_stride;
-            b4_stride *= 6;
-            if (IS_INTERLACED(mb_type_col[0]) != IS_INTERLACED(mb_type_col[1])) {
-                mb_type_col[0] &= ~MB_TYPE_INTERLACED;
-                mb_type_col[1] &= ~MB_TYPE_INTERLACED;
-            }
-
-            sub_mb_type |= MB_TYPE_16x16|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
-            if(    (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)
-                && (mb_type_col[1] & MB_TYPE_16x16_OR_INTRA)
-                && !is_b8x8){
-                *mb_type   |= MB_TYPE_16x8 |MB_TYPE_DIRECT2; /* B_16x8 */
-            }else{
-                *mb_type   |= MB_TYPE_8x8;
-            }
-        }else{                                           //     AFR/FR    -> AFR/FR
-single_col:
-            mb_type_col[0] =
-            mb_type_col[1] = h->ref_list[1][0].mb_type[mb_xy];
-
-            sub_mb_type |= MB_TYPE_16x16|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
-            if(!is_b8x8 && (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)){
-                *mb_type   |= MB_TYPE_16x16|MB_TYPE_DIRECT2; /* B_16x16 */
-            }else if(!is_b8x8 && (mb_type_col[0] & (MB_TYPE_16x8|MB_TYPE_8x16))){
-                *mb_type   |= MB_TYPE_DIRECT2 | (mb_type_col[0] & (MB_TYPE_16x8|MB_TYPE_8x16));
-            }else{
-                if(!h->sps.direct_8x8_inference_flag){
-                    /* FIXME save sub mb types from previous frames (or derive from MVs)
-                    * so we know exactly what block size to use */
-                    sub_mb_type += (MB_TYPE_8x8-MB_TYPE_16x16); /* B_SUB_4x4 */
-                }
-                *mb_type   |= MB_TYPE_8x8;
-            }
-        }
-    }
-
-    await_reference_mb_row(h, &h->ref_list[1][0], mb_y);
-
-    l1mv0  = (void*)&h->ref_list[1][0].motion_val[0][h->mb2b_xy [mb_xy]];
-    l1mv1  = (void*)&h->ref_list[1][0].motion_val[1][h->mb2b_xy [mb_xy]];
-    l1ref0 = &h->ref_list[1][0].ref_index [0][4 * mb_xy];
-    l1ref1 = &h->ref_list[1][0].ref_index [1][4 * mb_xy];
-    if(!b8_stride){
-        if(h->mb_y&1){
-            l1ref0 += 2;
-            l1ref1 += 2;
-            l1mv0  +=  2*b4_stride;
-            l1mv1  +=  2*b4_stride;
-        }
-    }
-
-
-        if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])){
-            int n=0;
-            for(i8=0; i8<4; i8++){
-                int x8 = i8&1;
-                int y8 = i8>>1;
-                int xy8 = x8+y8*b8_stride;
-                int xy4 = 3*x8+y8*b4_stride;
-                int a,b;
-
-                if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
-                    continue;
-                h->sub_mb_type[i8] = sub_mb_type;
-
-                fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);
-                fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);
-                if(!IS_INTRA(mb_type_col[y8]) && !h->ref_list[1][0].long_ref
-                   && (   (l1ref0[xy8] == 0 && FFABS(l1mv0[xy4][0]) <= 1 && FFABS(l1mv0[xy4][1]) <= 1)
-                       || (l1ref0[xy8]  < 0 && l1ref1[xy8] == 0 && FFABS(l1mv1[xy4][0]) <= 1 && FFABS(l1mv1[xy4][1]) <= 1))){
-                    a=b=0;
-                    if(ref[0] > 0)
-                        a= mv[0];
-                    if(ref[1] > 0)
-                        b= mv[1];
-                    n++;
-                }else{
-                    a= mv[0];
-                    b= mv[1];
-                }
-                fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, a, 4);
-                fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, b, 4);
-            }
-            if(!is_b8x8 && !(n&3))
-                *mb_type= (*mb_type & ~(MB_TYPE_8x8|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_P1L0|MB_TYPE_P1L1))|MB_TYPE_16x16|MB_TYPE_DIRECT2;
-        }else if(IS_16X16(*mb_type)){
-            int a,b;
-
-            fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
-            fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
-            if(!IS_INTRA(mb_type_col[0]) && !h->ref_list[1][0].long_ref
-               && (   (l1ref0[0] == 0 && FFABS(l1mv0[0][0]) <= 1 && FFABS(l1mv0[0][1]) <= 1)
-                   || (l1ref0[0]  < 0 && l1ref1[0] == 0 && FFABS(l1mv1[0][0]) <= 1 && FFABS(l1mv1[0][1]) <= 1
-                       && h->x264_build>33U))){
-                a=b=0;
-                if(ref[0] > 0)
-                    a= mv[0];
-                if(ref[1] > 0)
-                    b= mv[1];
-            }else{
-                a= mv[0];
-                b= mv[1];
-            }
-            fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, a, 4);
-            fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, b, 4);
-        }else{
-            int n=0;
-            for(i8=0; i8<4; i8++){
-                const int x8 = i8&1;
-                const int y8 = i8>>1;
-
-                if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
-                    continue;
-                h->sub_mb_type[i8] = sub_mb_type;
-
-                fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, mv[0], 4);
-                fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, mv[1], 4);
-                fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);
-                fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);
-
-                assert(b8_stride==2);
-                /* col_zero_flag */
-                if(!IS_INTRA(mb_type_col[0]) && !h->ref_list[1][0].long_ref && (   l1ref0[i8] == 0
-                                              || (l1ref0[i8] < 0 && l1ref1[i8] == 0
-                                                  && h->x264_build>33U))){
-                    const int16_t (*l1mv)[2]= l1ref0[i8] == 0 ? l1mv0 : l1mv1;
-                    if(IS_SUB_8X8(sub_mb_type)){
-                        const int16_t *mv_col = l1mv[x8*3 + y8*3*b4_stride];
-                        if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){
-                            if(ref[0] == 0)
-                                fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
-                            if(ref[1] == 0)
-                                fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
-                            n+=4;
-                        }
-                    }else{
-                        int m=0;
-                    for(i4=0; i4<4; i4++){
-                        const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*b4_stride];
-                        if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){
-                            if(ref[0] == 0)
-                                AV_ZERO32(h->mv_cache[0][scan8[i8*4+i4]]);
-                            if(ref[1] == 0)
-                                AV_ZERO32(h->mv_cache[1][scan8[i8*4+i4]]);
-                            m++;
-                        }
-                    }
-                    if(!(m&3))
-                        h->sub_mb_type[i8]+= MB_TYPE_16x16 - MB_TYPE_8x8;
-                    n+=m;
-                    }
-                }
-            }
-            if(!is_b8x8 && !(n&15))
-                *mb_type= (*mb_type & ~(MB_TYPE_8x8|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_P1L0|MB_TYPE_P1L1))|MB_TYPE_16x16|MB_TYPE_DIRECT2;
-        }
-}
-
-static void pred_temp_direct_motion(H264Context * const h, int *mb_type){
-    int b8_stride = 2;
-    int b4_stride = h->b_stride;
-    int mb_xy = h->mb_xy, mb_y = h->mb_y;
-    int mb_type_col[2];
-    const int16_t (*l1mv0)[2], (*l1mv1)[2];
-    const int8_t *l1ref0, *l1ref1;
-    const int is_b8x8 = IS_8X8(*mb_type);
-    unsigned int sub_mb_type;
-    int i8, i4;
-
-    assert(h->ref_list[1][0].reference & 3);
-
-    await_reference_mb_row(h, &h->ref_list[1][0], h->mb_y + !!IS_INTERLACED(*mb_type));
-
-    if (IS_INTERLACED(h->ref_list[1][0].mb_type[mb_xy])) { // AFL/AFR/FR/FL -> AFL/FL
-        if (!IS_INTERLACED(*mb_type)) {                          //     AFR/FR    -> AFL/FL
-            mb_y = (h->mb_y&~1) + h->col_parity;
-            mb_xy= h->mb_x + ((h->mb_y&~1) + h->col_parity)*h->mb_stride;
-            b8_stride = 0;
-        }else{
-            mb_y  += h->col_fieldoff;
-            mb_xy += h->mb_stride*h->col_fieldoff; // non zero for FL -> FL & differ parity
-        }
-        goto single_col;
-    }else{                                               // AFL/AFR/FR/FL -> AFR/FR
-        if(IS_INTERLACED(*mb_type)){                     // AFL       /FL -> AFR/FR
-            mb_y = h->mb_y&~1;
-            mb_xy= h->mb_x + (h->mb_y&~1)*h->mb_stride;
-            mb_type_col[0] = h->ref_list[1][0].mb_type[mb_xy];
-            mb_type_col[1] = h->ref_list[1][0].mb_type[mb_xy + h->mb_stride];
-            b8_stride = 2+4*h->mb_stride;
-            b4_stride *= 6;
-            if (IS_INTERLACED(mb_type_col[0]) != IS_INTERLACED(mb_type_col[1])) {
-                mb_type_col[0] &= ~MB_TYPE_INTERLACED;
-                mb_type_col[1] &= ~MB_TYPE_INTERLACED;
-            }
-
-            sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
-
-            if(    (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)
-                && (mb_type_col[1] & MB_TYPE_16x16_OR_INTRA)
-                && !is_b8x8){
-                *mb_type   |= MB_TYPE_16x8 |MB_TYPE_L0L1|MB_TYPE_DIRECT2; /* B_16x8 */
-            }else{
-                *mb_type   |= MB_TYPE_8x8|MB_TYPE_L0L1;
-            }
-        }else{                                           //     AFR/FR    -> AFR/FR
-single_col:
-            mb_type_col[0] =
-            mb_type_col[1] = h->ref_list[1][0].mb_type[mb_xy];
-
-            sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
-            if(!is_b8x8 && (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)){
-                *mb_type   |= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_16x16 */
-            }else if(!is_b8x8 && (mb_type_col[0] & (MB_TYPE_16x8|MB_TYPE_8x16))){
-                *mb_type   |= MB_TYPE_L0L1|MB_TYPE_DIRECT2 | (mb_type_col[0] & (MB_TYPE_16x8|MB_TYPE_8x16));
-            }else{
-                if(!h->sps.direct_8x8_inference_flag){
-                    /* FIXME save sub mb types from previous frames (or derive from MVs)
-                    * so we know exactly what block size to use */
-                    sub_mb_type = MB_TYPE_8x8|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_4x4 */
-                }
-                *mb_type   |= MB_TYPE_8x8|MB_TYPE_L0L1;
-            }
-        }
-    }
-
-    await_reference_mb_row(h, &h->ref_list[1][0], mb_y);
-
-    l1mv0  = (void*)&h->ref_list[1][0].motion_val[0][h->mb2b_xy [mb_xy]];
-    l1mv1  = (void*)&h->ref_list[1][0].motion_val[1][h->mb2b_xy [mb_xy]];
-    l1ref0 = &h->ref_list[1][0].ref_index [0][4 * mb_xy];
-    l1ref1 = &h->ref_list[1][0].ref_index [1][4 * mb_xy];
-    if(!b8_stride){
-        if(h->mb_y&1){
-            l1ref0 += 2;
-            l1ref1 += 2;
-            l1mv0  +=  2*b4_stride;
-            l1mv1  +=  2*b4_stride;
-        }
-    }
-
-    {
-        const int *map_col_to_list0[2] = {h->map_col_to_list0[0], h->map_col_to_list0[1]};
-        const int *dist_scale_factor = h->dist_scale_factor;
-        int ref_offset;
-
-        if (FRAME_MBAFF(h) && IS_INTERLACED(*mb_type)) {
-            map_col_to_list0[0] = h->map_col_to_list0_field[h->mb_y&1][0];
-            map_col_to_list0[1] = h->map_col_to_list0_field[h->mb_y&1][1];
-            dist_scale_factor   =h->dist_scale_factor_field[h->mb_y&1];
-        }
-        ref_offset = (h->ref_list[1][0].mbaff<<4) & (mb_type_col[0]>>3); //if(h->ref_list[1][0].mbaff && IS_INTERLACED(mb_type_col[0])) ref_offset=16 else 0
-
-        if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])){
-            int y_shift  = 2*!IS_INTERLACED(*mb_type);
-            assert(h->sps.direct_8x8_inference_flag);
-
-            for(i8=0; i8<4; i8++){
-                const int x8 = i8&1;
-                const int y8 = i8>>1;
-                int ref0, scale;
-                const int16_t (*l1mv)[2]= l1mv0;
-
-                if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
-                    continue;
-                h->sub_mb_type[i8] = sub_mb_type;
-
-                fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
-                if(IS_INTRA(mb_type_col[y8])){
-                    fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
-                    fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
-                    fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
-                    continue;
-                }
-
-                ref0 = l1ref0[x8 + y8*b8_stride];
-                if(ref0 >= 0)
-                    ref0 = map_col_to_list0[0][ref0 + ref_offset];
-                else{
-                    ref0 = map_col_to_list0[1][l1ref1[x8 + y8*b8_stride] + ref_offset];
-                    l1mv= l1mv1;
-                }
-                scale = dist_scale_factor[ref0];
-                fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
-
-                {
-                    const int16_t *mv_col = l1mv[x8*3 + y8*b4_stride];
-                    int my_col = (mv_col[1]<<y_shift)/2;
-                    int mx = (scale * mv_col[0] + 128) >> 8;
-                    int my = (scale * my_col + 128) >> 8;
-                    fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);
-                    fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-my_col), 4);
-                }
-            }
-            return;
-        }
-
-        /* one-to-one mv scaling */
-
-        if(IS_16X16(*mb_type)){
-            int ref, mv0, mv1;
-
-            fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, 0, 1);
-            if(IS_INTRA(mb_type_col[0])){
-                ref=mv0=mv1=0;
-            }else{
-                const int ref0 = l1ref0[0] >= 0 ? map_col_to_list0[0][l1ref0[0] + ref_offset]
-                                                : map_col_to_list0[1][l1ref1[0] + ref_offset];
-                const int scale = dist_scale_factor[ref0];
-                const int16_t *mv_col = l1ref0[0] >= 0 ? l1mv0[0] : l1mv1[0];
-                int mv_l0[2];
-                mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
-                mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
-                ref= ref0;
-                mv0= pack16to32(mv_l0[0],mv_l0[1]);
-                mv1= pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);
-            }
-            fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
-            fill_rectangle(&h-> mv_cache[0][scan8[0]], 4, 4, 8, mv0, 4);
-            fill_rectangle(&h-> mv_cache[1][scan8[0]], 4, 4, 8, mv1, 4);
-        }else{
-            for(i8=0; i8<4; i8++){
-                const int x8 = i8&1;
-                const int y8 = i8>>1;
-                int ref0, scale;
-                const int16_t (*l1mv)[2]= l1mv0;
-
-                if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
-                    continue;
-                h->sub_mb_type[i8] = sub_mb_type;
-                fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
-                if(IS_INTRA(mb_type_col[0])){
-                    fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
-                    fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
-                    fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
-                    continue;
-                }
-
-                assert(b8_stride == 2);
-                ref0 = l1ref0[i8];
-                if(ref0 >= 0)
-                    ref0 = map_col_to_list0[0][ref0 + ref_offset];
-                else{
-                    ref0 = map_col_to_list0[1][l1ref1[i8] + ref_offset];
-                    l1mv= l1mv1;
-                }
-                scale = dist_scale_factor[ref0];
-
-                fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
-                if(IS_SUB_8X8(sub_mb_type)){
-                    const int16_t *mv_col = l1mv[x8*3 + y8*3*b4_stride];
-                    int mx = (scale * mv_col[0] + 128) >> 8;
-                    int my = (scale * mv_col[1] + 128) >> 8;
-                    fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);
-                    fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-mv_col[1]), 4);
-                }else
-                for(i4=0; i4<4; i4++){
-                    const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*b4_stride];
-                    int16_t *mv_l0 = h->mv_cache[0][scan8[i8*4+i4]];
-                    mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
-                    mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
-                    AV_WN32A(h->mv_cache[1][scan8[i8*4+i4]],
-                        pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]));
-                }
-            }
-        }
-    }
-}
-
-void ff_h264_pred_direct_motion(H264Context * const h, int *mb_type){
-    if(h->direct_spatial_mv_pred){
-        pred_spatial_direct_motion(h, mb_type);
-    }else{
-        pred_temp_direct_motion(h, mb_type);
-    }
-}