X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fh264_direct.c;h=83c5958a4bfbba25ba27c52fcbb8764901a378b6;hb=da5be235250a61d6994408b054e3e3acf2e0f90f;hp=d22780d925524960cc82e11eb23b5d22b9a0d09a;hpb=ba87f0801d77c21eb1e4891ca1f846500bbb0939;p=ffmpeg

diff --git a/libavcodec/h264_direct.c b/libavcodec/h264_direct.c
index d22780d9255..83c5958a4bf 100644
--- a/libavcodec/h264_direct.c
+++ b/libavcodec/h264_direct.c
@@ -2,20 +2,20 @@
  * 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.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -26,13 +26,12 @@
  */
 
 #include "internal.h"
-#include "dsputil.h"
 #include "avcodec.h"
-#include "mpegvideo.h"
 #include "h264.h"
+#include "mpegutils.h"
 #include "rectangle.h"
+#include "thread.h"
 
-//#undef NDEBUG
 #include <assert.h>
 
 
@@ -49,29 +48,30 @@ static int get_scale_factor(H264Context * const h, int poc, int poc1, int i){
 }
 
 void ff_h264_direct_dist_scale_factor(H264Context * const h){
-    MpegEncContext * const s = &h->s;
-    const int poc = h->s.current_picture_ptr->field_poc[ s->picture_structure == PICT_BOTTOM_FIELD ];
+    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;
-    for(field=0; field<2; field++){
-        const int poc  = h->s.current_picture_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++){
+    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){
-    MpegEncContext * const s = &h->s;
-    Picture * const ref1 = &h->ref_list[1][0];
+    H264Picture * 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 || s->picture_structure != PICT_FRAME;
+    int interl= mbafi || h->picture_structure != PICT_FRAME;
 
     /* bogus; fills in for missing frames */
     memset(map[list], 0, sizeof(map[list]));
@@ -82,13 +82,14 @@ static void fill_colmap(H264Context *h, int map[2][16+32], int list, int field,
 
             if     (!interl)
                 poc |= 3;
-            else if( interl && (poc&3) == 3) //FIXME store all MBAFF references so this isnt needed
+            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){
+                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;
-                    map[list][2*old_ref + (rfield^field) + 16] = cur_ref;
+                    if (ref1->mbaff)
+                        map[list][2 * old_ref + (rfield^field) + 16] = cur_ref;
                     if(rfield == field || !interl)
                         map[list][old_ref] = cur_ref;
                     break;
@@ -99,52 +100,67 @@ static void fill_colmap(H264Context *h, int map[2][16+32], int list, int field,
 }
 
 void ff_h264_direct_ref_list_init(H264Context * const h){
-    MpegEncContext * const s = &h->s;
-    Picture * const ref1 = &h->ref_list[1][0];
-    Picture * const cur = s->current_picture_ptr;
+    H264Picture * const ref1 = &h->ref_list[1][0];
+    H264Picture * const cur = h->cur_pic_ptr;
     int list, j, field;
-    int sidx= (s->picture_structure&1)^1;
-    int ref1sidx= (ref1->reference&1)^1;
+    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);
+            cur->ref_poc[sidx][list][j] = 4 * h->ref_list[list][j].frame_num + (h->ref_list[list][j].reference & 3);
     }
 
-    if(s->picture_structure == PICT_FRAME){
+    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;
+    cur->mbaff = FRAME_MBAFF(h);
 
     h->col_fieldoff= 0;
-    if(s->picture_structure == PICT_FRAME){
-        int cur_poc = s->current_picture_ptr->poc;
+    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(!(s->picture_structure & h->ref_list[1][0].reference) && !h->ref_list[1][0].mbaff){ // FL -> FL & differ parity
-        h->col_fieldoff= s->mb_stride*(2*(h->ref_list[1][0].reference) - 3);
+    } 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(cur->pict_type != FF_B_TYPE || h->direct_spatial_mv_pred)
+    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)
+        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, H264Picture *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){
-    MpegEncContext * const s = &h->s;
     int b8_stride = 2;
     int b4_stride = h->b_stride;
-    int mb_xy = h->mb_xy;
+    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;
@@ -155,7 +171,9 @@ static void pred_spatial_direct_motion(H264Context * const h, int *mb_type){
     int mv[2];
     int list;
 
-    assert(h->ref_list[1][0].reference&3);
+    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)
 
@@ -215,21 +233,28 @@ static void pred_spatial_direct_motion(H264Context * const h, int *mb_type){
         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_xy= s->mb_x + ((s->mb_y&~1) + h->col_parity)*s->mb_stride;
+    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_xy += h->col_fieldoff; // non zero for FL -> FL & differ parity
+            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_xy= s->mb_x + (s->mb_y&~1)*s->mb_stride;
+            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 + s->mb_stride];
-            b8_stride = 2+4*s->mb_stride;
+            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)
@@ -260,12 +285,14 @@ single_col:
         }
     }
 
+    await_reference_mb_row(h, &h->ref_list[1][0], mb_y);
+
     l1mv0  = &h->ref_list[1][0].motion_val[0][h->mb2b_xy [mb_xy]];
     l1mv1  = &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];
+    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(s->mb_y&1){
+        if(h->mb_y&1){
             l1ref0 += 2;
             l1ref1 += 2;
             l1mv0  +=  2*b4_stride;
@@ -381,10 +408,9 @@ single_col:
 }
 
 static void pred_temp_direct_motion(H264Context * const h, int *mb_type){
-    MpegEncContext * const s = &h->s;
     int b8_stride = 2;
     int b4_stride = h->b_stride;
-    int mb_xy = h->mb_xy;
+    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;
@@ -392,23 +418,32 @@ static void pred_temp_direct_motion(H264Context * const h, int *mb_type){
     unsigned int sub_mb_type;
     int i8, i4;
 
-    assert(h->ref_list[1][0].reference&3);
+    assert(h->ref_list[1][0].reference & 3);
 
-    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_xy= s->mb_x + ((s->mb_y&~1) + h->col_parity)*s->mb_stride;
+    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_xy += h->col_fieldoff; // non zero for FL -> FL & differ parity
+            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_xy= s->mb_x + (s->mb_y&~1)*s->mb_stride;
+            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 + s->mb_stride];
-            b8_stride = 2+4*s->mb_stride;
+            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 */
 
@@ -440,12 +475,14 @@ single_col:
         }
     }
 
+    await_reference_mb_row(h, &h->ref_list[1][0], mb_y);
+
     l1mv0  = &h->ref_list[1][0].motion_val[0][h->mb2b_xy [mb_xy]];
     l1mv1  = &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];
+    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(s->mb_y&1){
+        if(h->mb_y&1){
             l1ref0 += 2;
             l1ref1 += 2;
             l1mv0  +=  2*b4_stride;
@@ -458,10 +495,10 @@ single_col:
         const int *dist_scale_factor = h->dist_scale_factor;
         int ref_offset;
 
-        if(FRAME_MBAFF && IS_INTERLACED(*mb_type)){
-            map_col_to_list0[0] = h->map_col_to_list0_field[s->mb_y&1][0];
-            map_col_to_list0[1] = h->map_col_to_list0_field[s->mb_y&1][1];
-            dist_scale_factor   =h->dist_scale_factor_field[s->mb_y&1];
+        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