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[libav.git] / libavcodec / h264.c
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0da71265
MN		 1/*
2 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4 *
b78e7197
DB		 5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
0da71265
MN		 8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
0da71265 11 *
b78e7197 12 * FFmpeg is distributed in the hope that it will be useful,
0da71265
MN		 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
b78e7197 18 * License along with FFmpeg; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
0da71265 20 */
115329f1 21
0da71265
MN		 22/**
23 * @file h264.c
24 * H.264 / AVC / MPEG4 part10 codec.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
0da71265
MN		 28#include "dsputil.h"
29#include "avcodec.h"
30#include "mpegvideo.h"
26b4fe82 31#include "h264.h"
0da71265 32#include "h264data.h"
26b4fe82 33#include "h264_parser.h"
0da71265 34#include "golomb.h"
626464fb 35#include "rectangle.h"
0da71265 36
e5017ab8 37#include "cabac.h"
52cb7981
JD		 38#ifdef ARCH_X86
39#include "i386/h264_i386.h"
40#endif
e5017ab8 41
2848ce84 42//#undef NDEBUG
0da71265
MN		 43#include <assert.h>
44
2ddcf84b
JD		 45/**
46 * Value of Picture.reference when Picture is not a reference picture, but
47 * is held for delayed output.
48 */
49#define DELAYED_PIC_REF 4
50
0da71265 51static VLC coeff_token_vlc[4];
910e3668
AC		 52static VLC_TYPE coeff_token_vlc_tables[520+332+280+256][2];
53static const int coeff_token_vlc_tables_size[4]={520,332,280,256};
54
0da71265 55static VLC chroma_dc_coeff_token_vlc;
910e3668
AC		 56static VLC_TYPE chroma_dc_coeff_token_vlc_table[256][2];
57static const int chroma_dc_coeff_token_vlc_table_size = 256;
0da71265
MN		 58
59static VLC total_zeros_vlc[15];
910e3668
AC		 60static VLC_TYPE total_zeros_vlc_tables[15][512][2];
61static const int total_zeros_vlc_tables_size = 512;
62
0da71265 63static VLC chroma_dc_total_zeros_vlc[3];
910e3668
AC		 64static VLC_TYPE chroma_dc_total_zeros_vlc_tables[3][8][2];
65static const int chroma_dc_total_zeros_vlc_tables_size = 8;
0da71265
MN		 66
67static VLC run_vlc[6];
910e3668
AC		 68static VLC_TYPE run_vlc_tables[6][8][2];
69static const int run_vlc_tables_size = 8;
70
0da71265 71static VLC run7_vlc;
910e3668
AC		 72static VLC_TYPE run7_vlc_table[96][2];
73static const int run7_vlc_table_size = 96;
0da71265 74
8b82a956
MN		 75static void svq3_luma_dc_dequant_idct_c(DCTELEM *block, int qp);
76static void svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int dc);
6ba71fc4 77static void filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize);
3e20143e 78static void filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize);
9c0e4624 79static Picture * remove_long(H264Context *h, int i, int ref_mask);
8b82a956 80
849f1035 81static av_always_inline uint32_t pack16to32(int a, int b){
377ec888
MN		 82#ifdef WORDS_BIGENDIAN
83 return (b&0xFFFF) + (a<<16);
84#else
85 return (a&0xFFFF) + (b<<16);
86#endif
87}
88
acd8d10f
PI		 89const uint8_t ff_rem6[52]={
900, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3,
91};
92
93const uint8_t ff_div6[52]={
940, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8,
95};
96
143d7f14
PK		 97static const int left_block_options[4][8]={
98 {0,1,2,3,7,10,8,11},
99 {2,2,3,3,8,11,8,11},
100 {0,0,1,1,7,10,7,10},
101 {0,2,0,2,7,10,7,10}
102};
acd8d10f 103
70abb407 104static void fill_caches(H264Context *h, int mb_type, int for_deblock){
0da71265 105 MpegEncContext * const s = &h->s;
64514ee8 106 const int mb_xy= h->mb_xy;
0da71265
MN		 107 int topleft_xy, top_xy, topright_xy, left_xy[2];
108 int topleft_type, top_type, topright_type, left_type[2];
143d7f14 109 int * left_block;
02f7695b 110 int topleft_partition= -1;
0da71265
MN		 111 int i;
112
36e097bc
JD		 113 top_xy = mb_xy - (s->mb_stride << FIELD_PICTURE);
114
717b1733 115 //FIXME deblocking could skip the intra and nnz parts.
36e097bc 116 if(for_deblock && (h->slice_num == 1 || h->slice_table[mb_xy] == h->slice_table[top_xy]) && !FRAME_MBAFF)
e2e5894a
LM		 117 return;
118
2cab6401
DB		 119 /* Wow, what a mess, why didn't they simplify the interlacing & intra
120 * stuff, I can't imagine that these complex rules are worth it. */
115329f1 121
6867a90b
LLL		 122 topleft_xy = top_xy - 1;
123 topright_xy= top_xy + 1;
124 left_xy[1] = left_xy[0] = mb_xy-1;
143d7f14 125 left_block = left_block_options[0];
5d18eaad 126 if(FRAME_MBAFF){
6867a90b
LLL		 127 const int pair_xy = s->mb_x + (s->mb_y & ~1)*s->mb_stride;
128 const int top_pair_xy = pair_xy - s->mb_stride;
129 const int topleft_pair_xy = top_pair_xy - 1;
130 const int topright_pair_xy = top_pair_xy + 1;
131 const int topleft_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[topleft_pair_xy]);
132 const int top_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[top_pair_xy]);
133 const int topright_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[topright_pair_xy]);
134 const int left_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[pair_xy-1]);
135 const int curr_mb_frame_flag = !IS_INTERLACED(mb_type);
136 const int bottom = (s->mb_y & 1);
a9c9a240 137 tprintf(s->avctx, "fill_caches: curr_mb_frame_flag:%d, left_mb_frame_flag:%d, topleft_mb_frame_flag:%d, top_mb_frame_flag:%d, topright_mb_frame_flag:%d\n", curr_mb_frame_flag, left_mb_frame_flag, topleft_mb_frame_flag, top_mb_frame_flag, topright_mb_frame_flag);
6867a90b
LLL		 138 if (bottom
139 ? !curr_mb_frame_flag // bottom macroblock
140 : (!curr_mb_frame_flag && !top_mb_frame_flag) // top macroblock
141 ) {
142 top_xy -= s->mb_stride;
143 }
144 if (bottom
145 ? !curr_mb_frame_flag // bottom macroblock
146 : (!curr_mb_frame_flag && !topleft_mb_frame_flag) // top macroblock
147 ) {
148 topleft_xy -= s->mb_stride;
02f7695b
LM		 149 } else if(bottom && curr_mb_frame_flag && !left_mb_frame_flag) {
150 topleft_xy += s->mb_stride;
1412060e 151 // take top left mv from the middle of the mb, as opposed to all other modes which use the bottom right partition
02f7695b 152 topleft_partition = 0;
6867a90b
LLL		 153 }
154 if (bottom
155 ? !curr_mb_frame_flag // bottom macroblock
156 : (!curr_mb_frame_flag && !topright_mb_frame_flag) // top macroblock
157 ) {
158 topright_xy -= s->mb_stride;
159 }
160 if (left_mb_frame_flag != curr_mb_frame_flag) {
161 left_xy[1] = left_xy[0] = pair_xy - 1;
162 if (curr_mb_frame_flag) {
163 if (bottom) {
143d7f14 164 left_block = left_block_options[1];
6867a90b 165 } else {
143d7f14 166 left_block= left_block_options[2];
6867a90b
LLL		 167 }
168 } else {
169 left_xy[1] += s->mb_stride;
143d7f14 170 left_block = left_block_options[3];
6867a90b
LLL		 171 }
172 }
0da71265
MN		 173 }
174
826de46e
LLL		 175 h->top_mb_xy = top_xy;
176 h->left_mb_xy[0] = left_xy[0];
177 h->left_mb_xy[1] = left_xy[1];
6ba71fc4 178 if(for_deblock){
717b1733
LM		 179 topleft_type = 0;
180 topright_type = 0;
46f2f05f 181 top_type = h->slice_table[top_xy ] < 255 ? s->current_picture.mb_type[top_xy] : 0;
46f2f05f
MN		 182 left_type[0] = h->slice_table[left_xy[0] ] < 255 ? s->current_picture.mb_type[left_xy[0]] : 0;
183 left_type[1] = h->slice_table[left_xy[1] ] < 255 ? s->current_picture.mb_type[left_xy[1]] : 0;
5d18eaad
LM		 184
185 if(FRAME_MBAFF && !IS_INTRA(mb_type)){
186 int list;
187 int v = *(uint16_t*)&h->non_zero_count[mb_xy][14];
188 for(i=0; i<16; i++)
189 h->non_zero_count_cache[scan8[i]] = (v>>i)&1;
3425501d 190 for(list=0; list<h->list_count; list++){
5d18eaad
LM		 191 if(USES_LIST(mb_type,list)){
192 uint32_t *src = (uint32_t*)s->current_picture.motion_val[list][h->mb2b_xy[mb_xy]];
193 uint32_t *dst = (uint32_t*)h->mv_cache[list][scan8[0]];
191e8ca7 194 int8_t *ref = &s->current_picture.ref_index[list][h->mb2b8_xy[mb_xy]];
5d18eaad
LM		 195 for(i=0; i<4; i++, dst+=8, src+=h->b_stride){
196 dst[0] = src[0];
197 dst[1] = src[1];
198 dst[2] = src[2];
199 dst[3] = src[3];
200 }
201 *(uint32_t*)&h->ref_cache[list][scan8[ 0]] =
202 *(uint32_t*)&h->ref_cache[list][scan8[ 2]] = pack16to32(ref[0],ref[1])*0x0101;
203 ref += h->b8_stride;
204 *(uint32_t*)&h->ref_cache[list][scan8[ 8]] =
205 *(uint32_t*)&h->ref_cache[list][scan8[10]] = pack16to32(ref[0],ref[1])*0x0101;
206 }else{
207 fill_rectangle(&h-> mv_cache[list][scan8[ 0]], 4, 4, 8, 0, 4);
208 fill_rectangle(&h->ref_cache[list][scan8[ 0]], 4, 4, 8, (uint8_t)LIST_NOT_USED, 1);
209 }
210 }
211 }
46f2f05f
MN		 212 }else{
213 topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
214 top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
215 topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
216 left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
217 left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
218 }
0da71265
MN		 219
220 if(IS_INTRA(mb_type)){
115329f1
DB		 221 h->topleft_samples_available=
222 h->top_samples_available=
0da71265
MN		 223 h->left_samples_available= 0xFFFF;
224 h->topright_samples_available= 0xEEEA;
225
226 if(!IS_INTRA(top_type) && (top_type==0 || h->pps.constrained_intra_pred)){
227 h->topleft_samples_available= 0xB3FF;
228 h->top_samples_available= 0x33FF;
229 h->topright_samples_available= 0x26EA;
230 }
231 for(i=0; i<2; i++){
232 if(!IS_INTRA(left_type[i]) && (left_type[i]==0 || h->pps.constrained_intra_pred)){
233 h->topleft_samples_available&= 0xDF5F;
234 h->left_samples_available&= 0x5F5F;
235 }
236 }
115329f1 237
0da71265
MN		 238 if(!IS_INTRA(topleft_type) && (topleft_type==0 || h->pps.constrained_intra_pred))
239 h->topleft_samples_available&= 0x7FFF;
115329f1 240
0da71265
MN		 241 if(!IS_INTRA(topright_type) && (topright_type==0 || h->pps.constrained_intra_pred))
242 h->topright_samples_available&= 0xFBFF;
115329f1 243
0da71265
MN		 244 if(IS_INTRA4x4(mb_type)){
245 if(IS_INTRA4x4(top_type)){
246 h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4];
247 h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5];
248 h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6];
249 h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];
250 }else{
251 int pred;
6fbcaaa0 252 if(!top_type || (IS_INTER(top_type) && h->pps.constrained_intra_pred))
0da71265 253 pred= -1;
6fbcaaa0
LLL		 254 else{
255 pred= 2;
0da71265
MN		 256 }
257 h->intra4x4_pred_mode_cache[4+8*0]=
258 h->intra4x4_pred_mode_cache[5+8*0]=
259 h->intra4x4_pred_mode_cache[6+8*0]=
260 h->intra4x4_pred_mode_cache[7+8*0]= pred;
261 }
262 for(i=0; i<2; i++){
263 if(IS_INTRA4x4(left_type[i])){
264 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]];
265 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];
266 }else{
267 int pred;
6fbcaaa0 268 if(!left_type[i] || (IS_INTER(left_type[i]) && h->pps.constrained_intra_pred))
0da71265 269 pred= -1;
6fbcaaa0
LLL		 270 else{
271 pred= 2;
0da71265
MN		 272 }
273 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
274 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;
275 }
276 }
277 }
278 }
115329f1
DB		 279
280
0da71265 281/*
115329f1
DB		 2820 . T T. T T T T
2831 L . .L . . . .
2842 L . .L . . . .
2853 . T TL . . . .
2864 L . .L . . . .
2875 L . .. . . . .
0da71265 288*/
1412060e 289//FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)
0da71265 290 if(top_type){
6867a90b
LLL		 291 h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][4];
292 h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][5];
293 h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][6];
53c05b1e 294 h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3];
115329f1 295
6867a90b 296 h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][9];
53c05b1e 297 h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8];
115329f1 298
6867a90b 299 h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][12];
53c05b1e 300 h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11];
115329f1 301
0da71265 302 }else{
115329f1 303 h->non_zero_count_cache[4+8*0]=
0da71265
MN		 304 h->non_zero_count_cache[5+8*0]=
305 h->non_zero_count_cache[6+8*0]=
306 h->non_zero_count_cache[7+8*0]=
115329f1 307
0da71265
MN		 308 h->non_zero_count_cache[1+8*0]=
309 h->non_zero_count_cache[2+8*0]=
115329f1 310
0da71265 311 h->non_zero_count_cache[1+8*3]=
3981c385 312 h->non_zero_count_cache[2+8*3]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
115329f1 313
0da71265 314 }
826de46e 315
6867a90b
LLL		 316 for (i=0; i<2; i++) {
317 if(left_type[i]){
318 h->non_zero_count_cache[3+8*1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[0+2*i]];
319 h->non_zero_count_cache[3+8*2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[1+2*i]];
320 h->non_zero_count_cache[0+8*1 + 8*i]= h->non_zero_count[left_xy[i]][left_block[4+2*i]];
321 h->non_zero_count_cache[0+8*4 + 8*i]= h->non_zero_count[left_xy[i]][left_block[5+2*i]];
6867a90b 322 }else{
115329f1
DB		 323 h->non_zero_count_cache[3+8*1 + 2*8*i]=
324 h->non_zero_count_cache[3+8*2 + 2*8*i]=
325 h->non_zero_count_cache[0+8*1 + 8*i]=
6867a90b 326 h->non_zero_count_cache[0+8*4 + 8*i]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
826de46e
LLL		 327 }
328 }
329
330 if( h->pps.cabac ) {
331 // top_cbp
332 if(top_type) {
333 h->top_cbp = h->cbp_table[top_xy];
334 } else if(IS_INTRA(mb_type)) {
335 h->top_cbp = 0x1C0;
336 } else {
337 h->top_cbp = 0;
338 }
339 // left_cbp
340 if (left_type[0]) {
341 h->left_cbp = h->cbp_table[left_xy[0]] & 0x1f0;
342 } else if(IS_INTRA(mb_type)) {
343 h->left_cbp = 0x1C0;
344 } else {
345 h->left_cbp = 0;
346 }
347 if (left_type[0]) {
348 h->left_cbp |= ((h->cbp_table[left_xy[0]]>>((left_block[0]&(~1))+1))&0x1) << 1;
349 }
350 if (left_type[1]) {
351 h->left_cbp |= ((h->cbp_table[left_xy[1]]>>((left_block[2]&(~1))+1))&0x1) << 3;
6867a90b 352 }
0da71265 353 }
6867a90b 354
0da71265 355#if 1
e2e5894a 356 if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
0da71265 357 int list;
3425501d 358 for(list=0; list<h->list_count; list++){
e2e5894a 359 if(!USES_LIST(mb_type, list) && !IS_DIRECT(mb_type) && !h->deblocking_filter){
0da71265
MN		 360 /*if(!h->mv_cache_clean[list]){
361 memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?
362 memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));
363 h->mv_cache_clean[list]= 1;
364 }*/
5ad984c9 365 continue;
0da71265
MN		 366 }
367 h->mv_cache_clean[list]= 0;
115329f1 368
53b19144 369 if(USES_LIST(top_type, list)){
0da71265
MN		 370 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
371 const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;
372 *(uint32_t*)h->mv_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 0];
373 *(uint32_t*)h->mv_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 1];
374 *(uint32_t*)h->mv_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 2];
375 *(uint32_t*)h->mv_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 3];
376 h->ref_cache[list][scan8[0] + 0 - 1*8]=
377 h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0];
378 h->ref_cache[list][scan8[0] + 2 - 1*8]=
379 h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1];
380 }else{
115329f1
DB		 381 *(uint32_t*)h->mv_cache [list][scan8[0] + 0 - 1*8]=
382 *(uint32_t*)h->mv_cache [list][scan8[0] + 1 - 1*8]=
383 *(uint32_t*)h->mv_cache [list][scan8[0] + 2 - 1*8]=
0da71265
MN		 384 *(uint32_t*)h->mv_cache [list][scan8[0] + 3 - 1*8]= 0;
385 *(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101;
386 }
387
4672503d
LM		 388 for(i=0; i<2; i++){
389 int cache_idx = scan8[0] - 1 + i*2*8;
390 if(USES_LIST(left_type[i], list)){
391 const int b_xy= h->mb2b_xy[left_xy[i]] + 3;
392 const int b8_xy= h->mb2b8_xy[left_xy[i]] + 1;
393 *(uint32_t*)h->mv_cache[list][cache_idx ]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0+i*2]];
394 *(uint32_t*)h->mv_cache[list][cache_idx+8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1+i*2]];
395 h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0+i*2]>>1)];
396 h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[1+i*2]>>1)];
397 }else{
398 *(uint32_t*)h->mv_cache [list][cache_idx ]=
399 *(uint32_t*)h->mv_cache [list][cache_idx+8]= 0;
400 h->ref_cache[list][cache_idx ]=
401 h->ref_cache[list][cache_idx+8]= left_type[i] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
402 }
0da71265
MN		 403 }
404
ae08a563 405 if((for_deblock || (IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred)) && !FRAME_MBAFF)
46f2f05f
MN		 406 continue;
407
53b19144 408 if(USES_LIST(topleft_type, list)){
02f7695b
LM		 409 const int b_xy = h->mb2b_xy[topleft_xy] + 3 + h->b_stride + (topleft_partition & 2*h->b_stride);
410 const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + (topleft_partition & h->b8_stride);
e2e5894a
LM		 411 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
412 h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];
413 }else{
414 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0;
415 h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
416 }
115329f1 417
53b19144 418 if(USES_LIST(topright_type, list)){
e2e5894a
LM		 419 const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;
420 const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride;
421 *(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
422 h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy];
423 }else{
424 *(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0;
425 h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
426 }
e2e5894a 427
ae08a563 428 if((IS_SKIP(mb_type) || IS_DIRECT(mb_type)) && !FRAME_MBAFF)
717b1733 429 continue;
115329f1
DB		 430
431 h->ref_cache[list][scan8[5 ]+1] =
432 h->ref_cache[list][scan8[7 ]+1] =
3b66c4c5 433 h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewhere else)
115329f1 434 h->ref_cache[list][scan8[4 ]] =
0da71265
MN		 435 h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
436 *(uint32_t*)h->mv_cache [list][scan8[5 ]+1]=
437 *(uint32_t*)h->mv_cache [list][scan8[7 ]+1]=
3b66c4c5 438 *(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
0da71265
MN		 439 *(uint32_t*)h->mv_cache [list][scan8[4 ]]=
440 *(uint32_t*)h->mv_cache [list][scan8[12]]= 0;
9e528114
LA		 441
442 if( h->pps.cabac ) {
443 /* XXX beurk, Load mvd */
53b19144 444 if(USES_LIST(top_type, list)){
9e528114
LA		 445 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
446 *(uint32_t*)h->mvd_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 0];
447 *(uint32_t*)h->mvd_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 1];
448 *(uint32_t*)h->mvd_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 2];
449 *(uint32_t*)h->mvd_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 3];
450 }else{
115329f1
DB		 451 *(uint32_t*)h->mvd_cache [list][scan8[0] + 0 - 1*8]=
452 *(uint32_t*)h->mvd_cache [list][scan8[0] + 1 - 1*8]=
453 *(uint32_t*)h->mvd_cache [list][scan8[0] + 2 - 1*8]=
9e528114
LA		 454 *(uint32_t*)h->mvd_cache [list][scan8[0] + 3 - 1*8]= 0;
455 }
53b19144 456 if(USES_LIST(left_type[0], list)){
9e528114
LA		 457 const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
458 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[0]];
459 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[1]];
460 }else{
461 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 0*8]=
462 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 1*8]= 0;
463 }
53b19144 464 if(USES_LIST(left_type[1], list)){
9e528114
LA		 465 const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
466 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[2]];
467 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[3]];
468 }else{
469 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 2*8]=
470 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 3*8]= 0;
471 }
472 *(uint32_t*)h->mvd_cache [list][scan8[5 ]+1]=
473 *(uint32_t*)h->mvd_cache [list][scan8[7 ]+1]=
3b66c4c5 474 *(uint32_t*)h->mvd_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
9e528114
LA		 475 *(uint32_t*)h->mvd_cache [list][scan8[4 ]]=
476 *(uint32_t*)h->mvd_cache [list][scan8[12]]= 0;
5ad984c9 477
9f5c1037 478 if(h->slice_type_nos == FF_B_TYPE){
5ad984c9
LM		 479 fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, 0, 1);
480
481 if(IS_DIRECT(top_type)){
482 *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0x01010101;
483 }else if(IS_8X8(top_type)){
484 int b8_xy = h->mb2b8_xy[top_xy] + h->b8_stride;
485 h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy];
486 h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 1];
487 }else{
488 *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0;
489 }
115329f1 490
5d18eaad
LM		 491 if(IS_DIRECT(left_type[0]))
492 h->direct_cache[scan8[0] - 1 + 0*8]= 1;
493 else if(IS_8X8(left_type[0]))
494 h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[h->mb2b8_xy[left_xy[0]] + 1 + h->b8_stride*(left_block[0]>>1)];
495 else
496 h->direct_cache[scan8[0] - 1 + 0*8]= 0;
497
498 if(IS_DIRECT(left_type[1]))
5ad984c9 499 h->direct_cache[scan8[0] - 1 + 2*8]= 1;
5d18eaad
LM		 500 else if(IS_8X8(left_type[1]))
501 h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[h->mb2b8_xy[left_xy[1]] + 1 + h->b8_stride*(left_block[2]>>1)];
502 else
5ad984c9 503 h->direct_cache[scan8[0] - 1 + 2*8]= 0;
5d18eaad
LM		 504 }
505 }
506
507 if(FRAME_MBAFF){
508#define MAP_MVS\
509 MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\
510 MAP_F2F(scan8[0] + 0 - 1*8, top_type)\
511 MAP_F2F(scan8[0] + 1 - 1*8, top_type)\
512 MAP_F2F(scan8[0] + 2 - 1*8, top_type)\
513 MAP_F2F(scan8[0] + 3 - 1*8, top_type)\
514 MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\
515 MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\
516 MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\
517 MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\
518 MAP_F2F(scan8[0] - 1 + 3*8, left_type[1])
519 if(MB_FIELD){
520#define MAP_F2F(idx, mb_type)\
521 if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
522 h->ref_cache[list][idx] <<= 1;\
523 h->mv_cache[list][idx][1] /= 2;\
524 h->mvd_cache[list][idx][1] /= 2;\
525 }
526 MAP_MVS
527#undef MAP_F2F
528 }else{
529#define MAP_F2F(idx, mb_type)\
530 if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
531 h->ref_cache[list][idx] >>= 1;\
532 h->mv_cache[list][idx][1] <<= 1;\
533 h->mvd_cache[list][idx][1] <<= 1;\
5ad984c9 534 }
5d18eaad
LM		 535 MAP_MVS
536#undef MAP_F2F
5ad984c9 537 }
9e528114 538 }
0da71265 539 }
0da71265
MN		 540 }
541#endif
43efd19a
LM		 542
543 h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]);
0da71265
MN		 544}
545
546static inline void write_back_intra_pred_mode(H264Context *h){
64514ee8 547 const int mb_xy= h->mb_xy;
0da71265
MN		 548
549 h->intra4x4_pred_mode[mb_xy][0]= h->intra4x4_pred_mode_cache[7+8*1];
550 h->intra4x4_pred_mode[mb_xy][1]= h->intra4x4_pred_mode_cache[7+8*2];
551 h->intra4x4_pred_mode[mb_xy][2]= h->intra4x4_pred_mode_cache[7+8*3];
552 h->intra4x4_pred_mode[mb_xy][3]= h->intra4x4_pred_mode_cache[7+8*4];
553 h->intra4x4_pred_mode[mb_xy][4]= h->intra4x4_pred_mode_cache[4+8*4];
554 h->intra4x4_pred_mode[mb_xy][5]= h->intra4x4_pred_mode_cache[5+8*4];
555 h->intra4x4_pred_mode[mb_xy][6]= h->intra4x4_pred_mode_cache[6+8*4];
556}
557
558/**
559 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
560 */
561static inline int check_intra4x4_pred_mode(H264Context *h){
562 MpegEncContext * const s = &h->s;
563 static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0};
564 static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED};
565 int i;
115329f1 566
0da71265
MN		 567 if(!(h->top_samples_available&0x8000)){
568 for(i=0; i<4; i++){
569 int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ];
570 if(status<0){
9b879566 571 av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
0da71265
MN		 572 return -1;
573 } else if(status){
574 h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
575 }
576 }
577 }
115329f1 578
0da71265
MN		 579 if(!(h->left_samples_available&0x8000)){
580 for(i=0; i<4; i++){
581 int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ];
582 if(status<0){
9b879566 583 av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
0da71265
MN		 584 return -1;
585 } else if(status){
586 h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status;
587 }
588 }
589 }
590
591 return 0;
592} //FIXME cleanup like next
593
594/**
595 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
596 */
597static inline int check_intra_pred_mode(H264Context *h, int mode){
598 MpegEncContext * const s = &h->s;
599 static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
600 static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
115329f1 601
43ff0714 602 if(mode > 6U) {
5175b937 603 av_log(h->s.avctx, AV_LOG_ERROR, "out of range intra chroma pred mode at %d %d\n", s->mb_x, s->mb_y);
7440fe83 604 return -1;
5175b937 605 }
115329f1 606
0da71265
MN		 607 if(!(h->top_samples_available&0x8000)){
608 mode= top[ mode ];
609 if(mode<0){
9b879566 610 av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
0da71265
MN		 611 return -1;
612 }
613 }
115329f1 614
0da71265
MN		 615 if(!(h->left_samples_available&0x8000)){
616 mode= left[ mode ];
617 if(mode<0){
9b879566 618 av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
0da71265 619 return -1;
115329f1 620 }
0da71265
MN		 621 }
622
623 return mode;
624}
625
626/**
627 * gets the predicted intra4x4 prediction mode.
628 */
629static inline int pred_intra_mode(H264Context *h, int n){
630 const int index8= scan8[n];
631 const int left= h->intra4x4_pred_mode_cache[index8 - 1];
632 const int top = h->intra4x4_pred_mode_cache[index8 - 8];
633 const int min= FFMIN(left, top);
634
a9c9a240 635 tprintf(h->s.avctx, "mode:%d %d min:%d\n", left ,top, min);
0da71265
MN		 636
637 if(min<0) return DC_PRED;
638 else return min;
639}
640
641static inline void write_back_non_zero_count(H264Context *h){
64514ee8 642 const int mb_xy= h->mb_xy;
0da71265 643
6867a90b
LLL		 644 h->non_zero_count[mb_xy][0]= h->non_zero_count_cache[7+8*1];
645 h->non_zero_count[mb_xy][1]= h->non_zero_count_cache[7+8*2];
646 h->non_zero_count[mb_xy][2]= h->non_zero_count_cache[7+8*3];
53c05b1e 647 h->non_zero_count[mb_xy][3]= h->non_zero_count_cache[7+8*4];
6867a90b
LLL		 648 h->non_zero_count[mb_xy][4]= h->non_zero_count_cache[4+8*4];
649 h->non_zero_count[mb_xy][5]= h->non_zero_count_cache[5+8*4];
650 h->non_zero_count[mb_xy][6]= h->non_zero_count_cache[6+8*4];
115329f1 651
6867a90b 652 h->non_zero_count[mb_xy][9]= h->non_zero_count_cache[1+8*2];
53c05b1e 653 h->non_zero_count[mb_xy][8]= h->non_zero_count_cache[2+8*2];
6867a90b 654 h->non_zero_count[mb_xy][7]= h->non_zero_count_cache[2+8*1];
53c05b1e 655
6867a90b 656 h->non_zero_count[mb_xy][12]=h->non_zero_count_cache[1+8*5];
53c05b1e 657 h->non_zero_count[mb_xy][11]=h->non_zero_count_cache[2+8*5];
6867a90b 658 h->non_zero_count[mb_xy][10]=h->non_zero_count_cache[2+8*4];
5d18eaad
LM		 659
660 if(FRAME_MBAFF){
661 // store all luma nnzs, for deblocking
662 int v = 0, i;
663 for(i=0; i<16; i++)
664 v += (!!h->non_zero_count_cache[scan8[i]]) << i;
665 *(uint16_t*)&h->non_zero_count[mb_xy][14] = v;
666 }
0da71265
MN		 667}
668
669/**
1412060e 670 * gets the predicted number of non-zero coefficients.
0da71265
MN		 671 * @param n block index
672 */
673static inline int pred_non_zero_count(H264Context *h, int n){
674 const int index8= scan8[n];
675 const int left= h->non_zero_count_cache[index8 - 1];
676 const int top = h->non_zero_count_cache[index8 - 8];
677 int i= left + top;
115329f1 678
0da71265
MN		 679 if(i<64) i= (i+1)>>1;
680
a9c9a240 681 tprintf(h->s.avctx, "pred_nnz L%X T%X n%d s%d P%X\n", left, top, n, scan8[n], i&31);
0da71265
MN		 682
683 return i&31;
684}
685
1924f3ce
MN		 686static inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, int list, int part_width){
687 const int topright_ref= h->ref_cache[list][ i - 8 + part_width ];
a9c9a240 688 MpegEncContext *s = &h->s;
1924f3ce 689
5d18eaad
LM		 690 /* there is no consistent mapping of mvs to neighboring locations that will
691 * make mbaff happy, so we can't move all this logic to fill_caches */
692 if(FRAME_MBAFF){
191e8ca7 693 const uint32_t *mb_types = s->current_picture_ptr->mb_type;
5d18eaad
LM		 694 const int16_t *mv;
695 *(uint32_t*)h->mv_cache[list][scan8[0]-2] = 0;
696 *C = h->mv_cache[list][scan8[0]-2];
697
698 if(!MB_FIELD
699 && (s->mb_y&1) && i < scan8[0]+8 && topright_ref != PART_NOT_AVAILABLE){
700 int topright_xy = s->mb_x + (s->mb_y-1)*s->mb_stride + (i == scan8[0]+3);
701 if(IS_INTERLACED(mb_types[topright_xy])){
702#define SET_DIAG_MV(MV_OP, REF_OP, X4, Y4)\
703 const int x4 = X4, y4 = Y4;\
704 const int mb_type = mb_types[(x4>>2)+(y4>>2)*s->mb_stride];\
02f7695b 705 if(!USES_LIST(mb_type,list))\
5d18eaad
LM		 706 return LIST_NOT_USED;\
707 mv = s->current_picture_ptr->motion_val[list][x4 + y4*h->b_stride];\
708 h->mv_cache[list][scan8[0]-2][0] = mv[0];\
709 h->mv_cache[list][scan8[0]-2][1] = mv[1] MV_OP;\
710 return s->current_picture_ptr->ref_index[list][(x4>>1) + (y4>>1)*h->b8_stride] REF_OP;
711
712 SET_DIAG_MV(*2, >>1, s->mb_x*4+(i&7)-4+part_width, s->mb_y*4-1);
713 }
714 }
715 if(topright_ref == PART_NOT_AVAILABLE
716 && ((s->mb_y&1) || i >= scan8[0]+8) && (i&7)==4
717 && h->ref_cache[list][scan8[0]-1] != PART_NOT_AVAILABLE){
718 if(!MB_FIELD
719 && IS_INTERLACED(mb_types[h->left_mb_xy[0]])){
720 SET_DIAG_MV(*2, >>1, s->mb_x*4-1, (s->mb_y|1)*4+(s->mb_y&1)*2+(i>>4)-1);
721 }
722 if(MB_FIELD
723 && !IS_INTERLACED(mb_types[h->left_mb_xy[0]])
724 && i >= scan8[0]+8){
1412060e 725 // left shift will turn LIST_NOT_USED into PART_NOT_AVAILABLE, but that's OK.
02f7695b 726 SET_DIAG_MV(/2, <<1, s->mb_x*4-1, (s->mb_y&~1)*4 - 1 + ((i-scan8[0])>>3)*2);
5d18eaad
LM		 727 }
728 }
729#undef SET_DIAG_MV
730 }
731
1924f3ce
MN		 732 if(topright_ref != PART_NOT_AVAILABLE){
733 *C= h->mv_cache[list][ i - 8 + part_width ];
734 return topright_ref;
735 }else{
a9c9a240 736 tprintf(s->avctx, "topright MV not available\n");
95c26348 737
1924f3ce
MN		 738 *C= h->mv_cache[list][ i - 8 - 1 ];
739 return h->ref_cache[list][ i - 8 - 1 ];
740 }
741}
742
0da71265
MN		 743/**
744 * gets the predicted MV.
745 * @param n the block index
746 * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4)
747 * @param mx the x component of the predicted motion vector
748 * @param my the y component of the predicted motion vector
749 */
750static inline void pred_motion(H264Context * const h, int n, int part_width, int list, int ref, int * const mx, int * const my){
0da71265
MN		 751 const int index8= scan8[n];
752 const int top_ref= h->ref_cache[list][ index8 - 8 ];
0da71265
MN		 753 const int left_ref= h->ref_cache[list][ index8 - 1 ];
754 const int16_t * const A= h->mv_cache[list][ index8 - 1 ];
755 const int16_t * const B= h->mv_cache[list][ index8 - 8 ];
1924f3ce
MN		 756 const int16_t * C;
757 int diagonal_ref, match_count;
758
0da71265 759 assert(part_width==1 || part_width==2 || part_width==4);
1924f3ce 760
0da71265 761/* mv_cache
115329f1 762 B . . A T T T T
0da71265
MN		 763 U . . L . . , .
764 U . . L . . . .
765 U . . L . . , .
766 . . . L . . . .
767*/
1924f3ce
MN		 768
769 diagonal_ref= fetch_diagonal_mv(h, &C, index8, list, part_width);
770 match_count= (diagonal_ref==ref) + (top_ref==ref) + (left_ref==ref);
a9c9a240 771 tprintf(h->s.avctx, "pred_motion match_count=%d\n", match_count);
1924f3ce
MN		 772 if(match_count > 1){ //most common
773 *mx= mid_pred(A[0], B[0], C[0]);
774 *my= mid_pred(A[1], B[1], C[1]);
775 }else if(match_count==1){
776 if(left_ref==ref){
777 *mx= A[0];
115329f1 778 *my= A[1];
1924f3ce
MN		 779 }else if(top_ref==ref){
780 *mx= B[0];
115329f1 781 *my= B[1];
0da71265 782 }else{
1924f3ce 783 *mx= C[0];
115329f1 784 *my= C[1];
0da71265
MN		 785 }
786 }else{
1924f3ce 787 if(top_ref == PART_NOT_AVAILABLE && diagonal_ref == PART_NOT_AVAILABLE && left_ref != PART_NOT_AVAILABLE){
0da71265 788 *mx= A[0];
115329f1 789 *my= A[1];
0da71265 790 }else{
1924f3ce
MN		 791 *mx= mid_pred(A[0], B[0], C[0]);
792 *my= mid_pred(A[1], B[1], C[1]);
0da71265 793 }
0da71265 794 }
115329f1 795
a9c9a240 796 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);
0da71265
MN		 797}
798
799/**
800 * gets the directionally predicted 16x8 MV.
801 * @param n the block index
802 * @param mx the x component of the predicted motion vector
803 * @param my the y component of the predicted motion vector
804 */
805static inline void pred_16x8_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
0da71265
MN		 806 if(n==0){
807 const int top_ref= h->ref_cache[list][ scan8[0] - 8 ];
808 const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ];
809
a9c9a240 810 tprintf(h->s.avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1], h->s.mb_x, h->s.mb_y, n, list);
115329f1 811
0da71265
MN		 812 if(top_ref == ref){
813 *mx= B[0];
814 *my= B[1];
815 return;
816 }
817 }else{
818 const int left_ref= h->ref_cache[list][ scan8[8] - 1 ];
819 const int16_t * const A= h->mv_cache[list][ scan8[8] - 1 ];
115329f1 820
a9c9a240 821 tprintf(h->s.avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list);
0da71265
MN		 822
823 if(left_ref == ref){
824 *mx= A[0];
825 *my= A[1];
826 return;
827 }
828 }
829
830 //RARE
831 pred_motion(h, n, 4, list, ref, mx, my);
832}
833
834/**
835 * gets the directionally predicted 8x16 MV.
836 * @param n the block index
837 * @param mx the x component of the predicted motion vector
838 * @param my the y component of the predicted motion vector
839 */
840static inline void pred_8x16_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
0da71265
MN		 841 if(n==0){
842 const int left_ref= h->ref_cache[list][ scan8[0] - 1 ];
843 const int16_t * const A= h->mv_cache[list][ scan8[0] - 1 ];
115329f1 844
a9c9a240 845 tprintf(h->s.avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list);
0da71265
MN		 846
847 if(left_ref == ref){
848 *mx= A[0];
849 *my= A[1];
850 return;
851 }
852 }else{
1924f3ce
MN		 853 const int16_t * C;
854 int diagonal_ref;
855
856 diagonal_ref= fetch_diagonal_mv(h, &C, scan8[4], list, 2);
115329f1 857
a9c9a240 858 tprintf(h->s.avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", diagonal_ref, C[0], C[1], h->s.mb_x, h->s.mb_y, n, list);
0da71265 859
115329f1 860 if(diagonal_ref == ref){
0da71265
MN		 861 *mx= C[0];
862 *my= C[1];
863 return;
864 }
0da71265
MN		 865 }
866
867 //RARE
868 pred_motion(h, n, 2, list, ref, mx, my);
869}
870
871static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my){
0da71265
MN		 872 const int top_ref = h->ref_cache[0][ scan8[0] - 8 ];
873 const int left_ref= h->ref_cache[0][ scan8[0] - 1 ];
874
a9c9a240 875 tprintf(h->s.avctx, "pred_pskip: (%d) (%d) at %2d %2d\n", top_ref, left_ref, h->s.mb_x, h->s.mb_y);
0da71265
MN		 876
877 if(top_ref == PART_NOT_AVAILABLE || left_ref == PART_NOT_AVAILABLE
878 || (top_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 8 ] == 0)
879 || (left_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 1 ] == 0)){
115329f1 880
0da71265
MN		 881 *mx = *my = 0;
882 return;
883 }
115329f1 884
0da71265
MN		 885 pred_motion(h, 0, 4, 0, 0, mx, my);
886
887 return;
888}
889
5ad984c9 890static inline void direct_dist_scale_factor(H264Context * const h){
2879c75f
MN		 891 MpegEncContext * const s = &h->s;
892 const int poc = h->s.current_picture_ptr->field_poc[ s->picture_structure == PICT_BOTTOM_FIELD ];
5ad984c9
LM		 893 const int poc1 = h->ref_list[1][0].poc;
894 int i;
895 for(i=0; i<h->ref_count[0]; i++){
896 int poc0 = h->ref_list[0][i].poc;
f66e4f5f 897 int td = av_clip(poc1 - poc0, -128, 127);
4c0d57bd 898 if(td == 0 || h->ref_list[0][i].long_ref){
5ad984c9
LM		 899 h->dist_scale_factor[i] = 256;
900 }else{
f66e4f5f 901 int tb = av_clip(poc - poc0, -128, 127);
c26abfa5 902 int tx = (16384 + (FFABS(td) >> 1)) / td;
f66e4f5f 903 h->dist_scale_factor[i] = av_clip((tb*tx + 32) >> 6, -1024, 1023);
5ad984c9
LM		 904 }
905 }
5d18eaad
LM		 906 if(FRAME_MBAFF){
907 for(i=0; i<h->ref_count[0]; i++){
908 h->dist_scale_factor_field[2*i] =
909 h->dist_scale_factor_field[2*i+1] = h->dist_scale_factor[i];
910 }
911 }
5ad984c9 912}
2f944356
LM		 913static inline void direct_ref_list_init(H264Context * const h){
914 MpegEncContext * const s = &h->s;
915 Picture * const ref1 = &h->ref_list[1][0];
916 Picture * const cur = s->current_picture_ptr;
917 int list, i, j;
2879c75f 918 int sidx= s->picture_structure&1;
45260d4f 919 int ref1sidx= ref1->reference&1;
2f944356 920 for(list=0; list<2; list++){
2879c75f 921 cur->ref_count[sidx][list] = h->ref_count[list];
2f944356 922 for(j=0; j<h->ref_count[list]; j++)
42de393d 923 cur->ref_poc[sidx][list][j] = 4*h->ref_list[list][j].frame_num + (h->ref_list[list][j].reference&3);
2f944356 924 }
7762cc3d
MN		 925 if(s->picture_structure == PICT_FRAME){
926 memcpy(cur->ref_count[0], cur->ref_count[1], sizeof(cur->ref_count[0]));
927 memcpy(cur->ref_poc [0], cur->ref_poc [1], sizeof(cur->ref_poc [0]));
928 }
9701840b 929 if(cur->pict_type != FF_B_TYPE || h->direct_spatial_mv_pred)
2f944356
LM		 930 return;
931 for(list=0; list<2; list++){
45260d4f 932 for(i=0; i<ref1->ref_count[ref1sidx][list]; i++){
42de393d
MN		 933 int poc = ref1->ref_poc[ref1sidx][list][i];
934 if(((poc&3) == 3) != (s->picture_structure == PICT_FRAME))
935 poc= (poc&~3) + s->picture_structure;
171c4076 936 h->map_col_to_list0[list][i] = 0; /* bogus; fills in for missing frames */
2f944356 937 for(j=0; j<h->ref_count[list]; j++)
42de393d 938 if(4*h->ref_list[list][j].frame_num + (h->ref_list[list][j].reference&3) == poc){
2f944356
LM		 939 h->map_col_to_list0[list][i] = j;
940 break;
941 }
942 }
943 }
5d18eaad
LM		 944 if(FRAME_MBAFF){
945 for(list=0; list<2; list++){
45260d4f 946 for(i=0; i<ref1->ref_count[ref1sidx][list]; i++){
5d18eaad
LM		 947 j = h->map_col_to_list0[list][i];
948 h->map_col_to_list0_field[list][2*i] = 2*j;
949 h->map_col_to_list0_field[list][2*i+1] = 2*j+1;
950 }
951 }
952 }
2f944356 953}
5ad984c9
LM		 954
955static inline void pred_direct_motion(H264Context * const h, int *mb_type){
956 MpegEncContext * const s = &h->s;
d00eac6c
MN		 957 int b8_stride = h->b8_stride;
958 int b4_stride = h->b_stride;
959 int mb_xy = h->mb_xy;
960 int mb_type_col[2];
961 const int16_t (*l1mv0)[2], (*l1mv1)[2];
962 const int8_t *l1ref0, *l1ref1;
5ad984c9 963 const int is_b8x8 = IS_8X8(*mb_type);
88e7a4d1 964 unsigned int sub_mb_type;
5ad984c9
LM		 965 int i8, i4;
966
5d18eaad 967#define MB_TYPE_16x16_OR_INTRA (MB_TYPE_16x16|MB_TYPE_INTRA4x4|MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM)
d00eac6c
MN		 968
969 if(IS_INTERLACED(h->ref_list[1][0].mb_type[mb_xy])){ // AFL/AFR/FR/FL -> AFL/FL
970 if(h->ref_list[1][0].reference == PICT_FRAME){ // AFL/AFR/FR/FL -> AFL
971 if(!IS_INTERLACED(*mb_type)){ // AFR/FR -> AFL
972 int cur_poc = s->current_picture_ptr->poc;
973 int *col_poc = h->ref_list[1]->field_poc;
974 int col_parity = FFABS(col_poc[0] - cur_poc) >= FFABS(col_poc[1] - cur_poc);
975 mb_xy= s->mb_x + ((s->mb_y&~1) + col_parity)*s->mb_stride;
d00eac6c
MN		 976 b8_stride = 0;
977 }
978 }else if(!(s->picture_structure & h->ref_list[1][0].reference)){// FL -> FL & differ parity
979 int fieldoff= 2*(h->ref_list[1][0].reference)-3;
980 mb_xy += s->mb_stride*fieldoff;
981 }
982 goto single_col;
983 }else{ // AFL/AFR/FR/FL -> AFR/FR
984 if(IS_INTERLACED(*mb_type)){ // AFL /FL -> AFR/FR
985 mb_xy= s->mb_x + (s->mb_y&~1)*s->mb_stride;
986 mb_type_col[0] = h->ref_list[1][0].mb_type[mb_xy];
987 mb_type_col[1] = h->ref_list[1][0].mb_type[mb_xy + s->mb_stride];
988 b8_stride *= 3;
989 b4_stride *= 6;
990 //FIXME IS_8X8(mb_type_col[0]) && !h->sps.direct_8x8_inference_flag
991 if( (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)
992 && (mb_type_col[1] & MB_TYPE_16x16_OR_INTRA)
993 && !is_b8x8){
994 sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
995 *mb_type |= MB_TYPE_16x8 |MB_TYPE_L0L1|MB_TYPE_DIRECT2; /* B_16x8 */
996 }else{
997 sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
998 *mb_type |= MB_TYPE_8x8|MB_TYPE_L0L1;
999 }
1000 }else{ // AFR/FR -> AFR/FR
1001single_col:
1002 mb_type_col[0] =
1003 mb_type_col[1] = h->ref_list[1][0].mb_type[mb_xy];
cc615d2c
MN		 1004 if(IS_8X8(mb_type_col[0]) && !h->sps.direct_8x8_inference_flag){
1005 /* FIXME save sub mb types from previous frames (or derive from MVs)
1006 * so we know exactly what block size to use */
1007 sub_mb_type = MB_TYPE_8x8|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_4x4 */
1008 *mb_type |= MB_TYPE_8x8|MB_TYPE_L0L1;
1009 }else if(!is_b8x8 && (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)){
1010 sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
1011 *mb_type |= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_16x16 */
1012 }else{
1013 sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
1014 *mb_type |= MB_TYPE_8x8|MB_TYPE_L0L1;
1015 }
d00eac6c 1016 }
5ad984c9 1017 }
5ad984c9 1018
7d54ecc9
MN		 1019 l1mv0 = &h->ref_list[1][0].motion_val[0][h->mb2b_xy [mb_xy]];
1020 l1mv1 = &h->ref_list[1][0].motion_val[1][h->mb2b_xy [mb_xy]];
1021 l1ref0 = &h->ref_list[1][0].ref_index [0][h->mb2b8_xy[mb_xy]];
1022 l1ref1 = &h->ref_list[1][0].ref_index [1][h->mb2b8_xy[mb_xy]];
9b5fab91
MN		 1023 if(!b8_stride){
1024 if(s->mb_y&1){
1025 l1ref0 += h->b8_stride;
1026 l1ref1 += h->b8_stride;
1027 l1mv0 += 2*b4_stride;
1028 l1mv1 += 2*b4_stride;
1029 }
d00eac6c 1030 }
115329f1 1031
5ad984c9
LM		 1032 if(h->direct_spatial_mv_pred){
1033 int ref[2];
1034 int mv[2][2];
1035 int list;
1036
5d18eaad
LM		 1037 /* FIXME interlacing + spatial direct uses wrong colocated block positions */
1038
5ad984c9
LM		 1039 /* ref = min(neighbors) */
1040 for(list=0; list<2; list++){
1041 int refa = h->ref_cache[list][scan8[0] - 1];
1042 int refb = h->ref_cache[list][scan8[0] - 8];
1043 int refc = h->ref_cache[list][scan8[0] - 8 + 4];
9bec77fe 1044 if(refc == PART_NOT_AVAILABLE)
5ad984c9 1045 refc = h->ref_cache[list][scan8[0] - 8 - 1];
29d05ebc 1046 ref[list] = FFMIN3((unsigned)refa, (unsigned)refb, (unsigned)refc);
5ad984c9
LM		 1047 if(ref[list] < 0)
1048 ref[list] = -1;
1049 }
1050
1051 if(ref[0] < 0 && ref[1] < 0){
1052 ref[0] = ref[1] = 0;
1053 mv[0][0] = mv[0][1] =
1054 mv[1][0] = mv[1][1] = 0;
1055 }else{
1056 for(list=0; list<2; list++){
1057 if(ref[list] >= 0)
1058 pred_motion(h, 0, 4, list, ref[list], &mv[list][0], &mv[list][1]);
1059 else
1060 mv[list][0] = mv[list][1] = 0;
1061 }
1062 }
1063
1064 if(ref[1] < 0){
50b3ab0f
LM		 1065 if(!is_b8x8)
1066 *mb_type &= ~MB_TYPE_L1;
1067 sub_mb_type &= ~MB_TYPE_L1;
5ad984c9 1068 }else if(ref[0] < 0){
50b3ab0f
LM		 1069 if(!is_b8x8)
1070 *mb_type &= ~MB_TYPE_L0;
1071 sub_mb_type &= ~MB_TYPE_L0;
5ad984c9
LM		 1072 }
1073
d00eac6c 1074 if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])){
50b3ab0f
LM		 1075 for(i8=0; i8<4; i8++){
1076 int x8 = i8&1;
1077 int y8 = i8>>1;
1078 int xy8 = x8+y8*b8_stride;
1079 int xy4 = 3*x8+y8*b4_stride;
1080 int a=0, b=0;
1081
1082 if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
1083 continue;
1084 h->sub_mb_type[i8] = sub_mb_type;
1085
1086 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);
1087 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);
d00eac6c 1088 if(!IS_INTRA(mb_type_col[y8])
50b3ab0f
LM		 1089 && ( (l1ref0[xy8] == 0 && FFABS(l1mv0[xy4][0]) <= 1 && FFABS(l1mv0[xy4][1]) <= 1)
1090 || (l1ref0[xy8] < 0 && l1ref1[xy8] == 0 && FFABS(l1mv1[xy4][0]) <= 1 && FFABS(l1mv1[xy4][1]) <= 1))){
1091 if(ref[0] > 0)
1092 a= pack16to32(mv[0][0],mv[0][1]);
1093 if(ref[1] > 0)
1094 b= pack16to32(mv[1][0],mv[1][1]);
1095 }else{
1096 a= pack16to32(mv[0][0],mv[0][1]);
1097 b= pack16to32(mv[1][0],mv[1][1]);
1098 }
1099 fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, a, 4);
1100 fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, b, 4);
1101 }
1102 }else if(IS_16X16(*mb_type)){
d19f5acb
MN		 1103 int a=0, b=0;
1104
cec93959
LM		 1105 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
1106 fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
d00eac6c 1107 if(!IS_INTRA(mb_type_col[0])
c26abfa5
DB		 1108 && ( (l1ref0[0] == 0 && FFABS(l1mv0[0][0]) <= 1 && FFABS(l1mv0[0][1]) <= 1)
1109 || (l1ref0[0] < 0 && l1ref1[0] == 0 && FFABS(l1mv1[0][0]) <= 1 && FFABS(l1mv1[0][1]) <= 1
bf4e3bd2 1110 && (h->x264_build>33 || !h->x264_build)))){
5ad984c9 1111 if(ref[0] > 0)
d19f5acb 1112 a= pack16to32(mv[0][0],mv[0][1]);
5ad984c9 1113 if(ref[1] > 0)
d19f5acb 1114 b= pack16to32(mv[1][0],mv[1][1]);
5ad984c9 1115 }else{
d19f5acb
MN		 1116 a= pack16to32(mv[0][0],mv[0][1]);
1117 b= pack16to32(mv[1][0],mv[1][1]);
5ad984c9 1118 }
d19f5acb
MN		 1119 fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, a, 4);
1120 fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, b, 4);
5ad984c9
LM		 1121 }else{
1122 for(i8=0; i8<4; i8++){
1123 const int x8 = i8&1;
1124 const int y8 = i8>>1;
115329f1 1125
5ad984c9
LM		 1126 if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
1127 continue;
1128 h->sub_mb_type[i8] = sub_mb_type;
115329f1 1129
5ad984c9
LM		 1130 fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mv[0][0],mv[0][1]), 4);
1131 fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mv[1][0],mv[1][1]), 4);
cec93959
LM		 1132 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);
1133 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);
115329f1 1134
5ad984c9 1135 /* col_zero_flag */
2ccd25d0
MN		 1136 if(!IS_INTRA(mb_type_col[0]) && ( l1ref0[x8 + y8*b8_stride] == 0
1137 || (l1ref0[x8 + y8*b8_stride] < 0 && l1ref1[x8 + y8*b8_stride] == 0
bf4e3bd2 1138 && (h->x264_build>33 || !h->x264_build)))){
2ccd25d0 1139 const int16_t (*l1mv)[2]= l1ref0[x8 + y8*b8_stride] == 0 ? l1mv0 : l1mv1;
f1f17e54 1140 if(IS_SUB_8X8(sub_mb_type)){
2ccd25d0 1141 const int16_t *mv_col = l1mv[x8*3 + y8*3*b4_stride];
c26abfa5 1142 if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){
f1f17e54
LM		 1143 if(ref[0] == 0)
1144 fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
1145 if(ref[1] == 0)
1146 fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
1147 }
1148 }else
5ad984c9 1149 for(i4=0; i4<4; i4++){
2ccd25d0 1150 const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*b4_stride];
c26abfa5 1151 if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){
5ad984c9
LM		 1152 if(ref[0] == 0)
1153 *(uint32_t*)h->mv_cache[0][scan8[i8*4+i4]] = 0;
1154 if(ref[1] == 0)
1155 *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] = 0;
1156 }
1157 }
1158 }
1159 }
1160 }
1161 }else{ /* direct temporal mv pred */
5d18eaad
LM		 1162 const int *map_col_to_list0[2] = {h->map_col_to_list0[0], h->map_col_to_list0[1]};
1163 const int *dist_scale_factor = h->dist_scale_factor;
1164
cc615d2c
MN		 1165 if(FRAME_MBAFF && IS_INTERLACED(*mb_type)){
1166 map_col_to_list0[0] = h->map_col_to_list0_field[0];
1167 map_col_to_list0[1] = h->map_col_to_list0_field[1];
1168 dist_scale_factor = h->dist_scale_factor_field;
1169 }
1170 if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])){
1171 /* FIXME assumes direct_8x8_inference == 1 */
c210fa61
MN		 1172 int y_shift = 2*!IS_INTERLACED(*mb_type);
1173 int ref_shift= FRAME_MBAFF ? y_shift : 1;
5d18eaad 1174
cc615d2c
MN		 1175 for(i8=0; i8<4; i8++){
1176 const int x8 = i8&1;
1177 const int y8 = i8>>1;
1178 int ref0, scale;
1179 const int16_t (*l1mv)[2]= l1mv0;
5d18eaad 1180
cc615d2c
MN		 1181 if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
1182 continue;
1183 h->sub_mb_type[i8] = sub_mb_type;
1184
1185 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
1186 if(IS_INTRA(mb_type_col[y8])){
1187 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
1188 fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
1189 fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
1190 continue;
1191 }
1192
1193 ref0 = l1ref0[x8 + y8*b8_stride];
1194 if(ref0 >= 0)
1195 ref0 = map_col_to_list0[0][ref0*2>>ref_shift];
1196 else{
1197 ref0 = map_col_to_list0[1][l1ref1[x8 + y8*b8_stride]*2>>ref_shift];
1198 l1mv= l1mv1;
1199 }
1200 scale = dist_scale_factor[ref0];
1201 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
1202
1203 {
1204 const int16_t *mv_col = l1mv[x8*3 + y8*b4_stride];
1205 int my_col = (mv_col[1]<<y_shift)/2;
1206 int mx = (scale * mv_col[0] + 128) >> 8;
1207 int my = (scale * my_col + 128) >> 8;
1208 fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);
1209 fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-my_col), 4);
5d18eaad 1210 }
5d18eaad 1211 }
cc615d2c
MN		 1212 return;
1213 }
5d18eaad
LM		 1214
1215 /* one-to-one mv scaling */
1216
5ad984c9 1217 if(IS_16X16(*mb_type)){
fda51641
MN		 1218 int ref, mv0, mv1;
1219
5ad984c9 1220 fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, 0, 1);
d00eac6c 1221 if(IS_INTRA(mb_type_col[0])){
fda51641 1222 ref=mv0=mv1=0;
5ad984c9 1223 }else{
5d18eaad
LM		 1224 const int ref0 = l1ref0[0] >= 0 ? map_col_to_list0[0][l1ref0[0]]
1225 : map_col_to_list0[1][l1ref1[0]];
1226 const int scale = dist_scale_factor[ref0];
8583bef8 1227 const int16_t *mv_col = l1ref0[0] >= 0 ? l1mv0[0] : l1mv1[0];
5ad984c9 1228 int mv_l0[2];
5d18eaad
LM		 1229 mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
1230 mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
fda51641
MN		 1231 ref= ref0;
1232 mv0= pack16to32(mv_l0[0],mv_l0[1]);
1233 mv1= pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);
5ad984c9 1234 }
fda51641
MN		 1235 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
1236 fill_rectangle(&h-> mv_cache[0][scan8[0]], 4, 4, 8, mv0, 4);
1237 fill_rectangle(&h-> mv_cache[1][scan8[0]], 4, 4, 8, mv1, 4);
5ad984c9
LM		 1238 }else{
1239 for(i8=0; i8<4; i8++){
1240 const int x8 = i8&1;
1241 const int y8 = i8>>1;
5d18eaad 1242 int ref0, scale;
bf4e3bd2 1243 const int16_t (*l1mv)[2]= l1mv0;
8583bef8 1244
5ad984c9
LM		 1245 if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
1246 continue;
1247 h->sub_mb_type[i8] = sub_mb_type;
5d18eaad 1248 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
d00eac6c 1249 if(IS_INTRA(mb_type_col[0])){
5ad984c9 1250 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
5ad984c9
LM		 1251 fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
1252 fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
1253 continue;
1254 }
115329f1 1255
2ccd25d0 1256 ref0 = l1ref0[x8 + y8*b8_stride];
2f944356 1257 if(ref0 >= 0)
5d18eaad 1258 ref0 = map_col_to_list0[0][ref0];
8583bef8 1259 else{
2ccd25d0 1260 ref0 = map_col_to_list0[1][l1ref1[x8 + y8*b8_stride]];
8583bef8
MN		 1261 l1mv= l1mv1;
1262 }
5d18eaad 1263 scale = dist_scale_factor[ref0];
115329f1 1264
5ad984c9 1265 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
f1f17e54 1266 if(IS_SUB_8X8(sub_mb_type)){
2ccd25d0 1267 const int16_t *mv_col = l1mv[x8*3 + y8*3*b4_stride];
5d18eaad
LM		 1268 int mx = (scale * mv_col[0] + 128) >> 8;
1269 int my = (scale * mv_col[1] + 128) >> 8;
f1f17e54
LM		 1270 fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);
1271 fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-mv_col[1]), 4);
1272 }else
5ad984c9 1273 for(i4=0; i4<4; i4++){
2ccd25d0 1274 const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*b4_stride];
5ad984c9 1275 int16_t *mv_l0 = h->mv_cache[0][scan8[i8*4+i4]];
5d18eaad
LM		 1276 mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
1277 mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
5ad984c9
LM		 1278 *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] =
1279 pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);
1280 }
1281 }
1282 }
1283 }
1284}
1285
0da71265
MN		 1286static inline void write_back_motion(H264Context *h, int mb_type){
1287 MpegEncContext * const s = &h->s;
0da71265
MN		 1288 const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
1289 const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride;
1290 int list;
1291
2ea39252
LM		 1292 if(!USES_LIST(mb_type, 0))
1293 fill_rectangle(&s->current_picture.ref_index[0][b8_xy], 2, 2, h->b8_stride, (uint8_t)LIST_NOT_USED, 1);
1294
3425501d 1295 for(list=0; list<h->list_count; list++){
0da71265 1296 int y;
53b19144 1297 if(!USES_LIST(mb_type, list))
5ad984c9 1298 continue;
115329f1 1299
0da71265
MN		 1300 for(y=0; y<4; y++){
1301 *(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+0 + 8*y];
1302 *(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+2 + 8*y];
1303 }
9e528114 1304 if( h->pps.cabac ) {
e6e77eb6
LM		 1305 if(IS_SKIP(mb_type))
1306 fill_rectangle(h->mvd_table[list][b_xy], 4, 4, h->b_stride, 0, 4);
1307 else
9e528114
LA		 1308 for(y=0; y<4; y++){
1309 *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+0 + 8*y];
1310 *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+2 + 8*y];
1311 }
1312 }
53b19144
LM		 1313
1314 {
191e8ca7 1315 int8_t *ref_index = &s->current_picture.ref_index[list][b8_xy];
53b19144
LM		 1316 ref_index[0+0*h->b8_stride]= h->ref_cache[list][scan8[0]];
1317 ref_index[1+0*h->b8_stride]= h->ref_cache[list][scan8[4]];
1318 ref_index[0+1*h->b8_stride]= h->ref_cache[list][scan8[8]];
1319 ref_index[1+1*h->b8_stride]= h->ref_cache[list][scan8[12]];
0da71265
MN		 1320 }
1321 }
115329f1 1322
9f5c1037 1323 if(h->slice_type_nos == FF_B_TYPE && h->pps.cabac){
5ad984c9 1324 if(IS_8X8(mb_type)){
53b19144
LM		 1325 uint8_t *direct_table = &h->direct_table[b8_xy];
1326 direct_table[1+0*h->b8_stride] = IS_DIRECT(h->sub_mb_type[1]) ? 1 : 0;
1327 direct_table[0+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[2]) ? 1 : 0;
1328 direct_table[1+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[3]) ? 1 : 0;
5ad984c9
LM		 1329 }
1330 }
0da71265
MN		 1331}
1332
1333/**
1334 * Decodes a network abstraction layer unit.
1335 * @param consumed is the number of bytes used as input
1336 * @param length is the length of the array
3b66c4c5 1337 * @param dst_length is the number of decoded bytes FIXME here or a decode rbsp tailing?
115329f1 1338 * @returns decoded bytes, might be src+1 if no escapes
0da71265 1339 */
30317501 1340static const uint8_t *decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length){
0da71265
MN		 1341 int i, si, di;
1342 uint8_t *dst;
24456882 1343 int bufidx;
0da71265 1344
bb270c08 1345// src[0]&0x80; //forbidden bit
0da71265
MN		 1346 h->nal_ref_idc= src[0]>>5;
1347 h->nal_unit_type= src[0]&0x1F;
1348
1349 src++; length--;
115329f1 1350#if 0
0da71265
MN		 1351 for(i=0; i<length; i++)
1352 printf("%2X ", src[i]);
1353#endif
1354 for(i=0; i+1<length; i+=2){
1355 if(src[i]) continue;
1356 if(i>0 && src[i-1]==0) i--;
1357 if(i+2<length && src[i+1]==0 && src[i+2]<=3){
1358 if(src[i+2]!=3){
1359 /* startcode, so we must be past the end */
1360 length=i;
1361 }
1362 break;
1363 }
1364 }
1365
1366 if(i>=length-1){ //no escaped 0
1367 *dst_length= length;
1368 *consumed= length+1; //+1 for the header
115329f1 1369 return src;
0da71265
MN		 1370 }
1371
24456882
AÖ		 1372 bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data
1373 h->rbsp_buffer[bufidx]= av_fast_realloc(h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length);
1374 dst= h->rbsp_buffer[bufidx];
0da71265 1375
ac658be5
FOL		 1376 if (dst == NULL){
1377 return NULL;
1378 }
1379
3b66c4c5 1380//printf("decoding esc\n");
0da71265 1381 si=di=0;
115329f1 1382 while(si<length){
0da71265
MN		 1383 //remove escapes (very rare 1:2^22)
1384 if(si+2<length && src[si]==0 && src[si+1]==0 && src[si+2]<=3){
1385 if(src[si+2]==3){ //escape
1386 dst[di++]= 0;
1387 dst[di++]= 0;
1388 si+=3;
c8470cc1 1389 continue;
0da71265
MN		 1390 }else //next start code
1391 break;
1392 }
1393
1394 dst[di++]= src[si++];
1395 }
1396
1397 *dst_length= di;
1398 *consumed= si + 1;//+1 for the header
90b5b51e 1399//FIXME store exact number of bits in the getbitcontext (it is needed for decoding)
0da71265
MN		 1400 return dst;
1401}
1402
0da71265
MN		 1403/**
1404 * identifies the exact end of the bitstream
1405 * @return the length of the trailing, or 0 if damaged
1406 */
30317501 1407static int decode_rbsp_trailing(H264Context *h, const uint8_t *src){
0da71265
MN		 1408 int v= *src;
1409 int r;
1410
a9c9a240 1411 tprintf(h->s.avctx, "rbsp trailing %X\n", v);
0da71265
MN		 1412
1413 for(r=1; r<9; r++){
1414 if(v&1) return r;
1415 v>>=1;
1416 }
1417 return 0;
1418}
1419
1420/**
1412060e 1421 * IDCT transforms the 16 dc values and dequantizes them.
0da71265
MN		 1422 * @param qp quantization parameter
1423 */
239ea04c 1424static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){
0da71265
MN		 1425#define stride 16
1426 int i;
1427 int temp[16]; //FIXME check if this is a good idea
1428 static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
1429 static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
1430
1431//memset(block, 64, 2*256);
1432//return;
1433 for(i=0; i<4; i++){
1434 const int offset= y_offset[i];
1435 const int z0= block[offset+stride*0] + block[offset+stride*4];
1436 const int z1= block[offset+stride*0] - block[offset+stride*4];
1437 const int z2= block[offset+stride*1] - block[offset+stride*5];
1438 const int z3= block[offset+stride*1] + block[offset+stride*5];
1439
1440 temp[4*i+0]= z0+z3;
1441 temp[4*i+1]= z1+z2;
1442 temp[4*i+2]= z1-z2;
1443 temp[4*i+3]= z0-z3;
1444 }
1445
1446 for(i=0; i<4; i++){
1447 const int offset= x_offset[i];
1448 const int z0= temp[4*0+i] + temp[4*2+i];
1449 const int z1= temp[4*0+i] - temp[4*2+i];
1450 const int z2= temp[4*1+i] - temp[4*3+i];
1451 const int z3= temp[4*1+i] + temp[4*3+i];
1452
1412060e 1453 block[stride*0 +offset]= ((((z0 + z3)*qmul + 128 ) >> 8)); //FIXME think about merging this into decode_residual
239ea04c
LM		 1454 block[stride*2 +offset]= ((((z1 + z2)*qmul + 128 ) >> 8));
1455 block[stride*8 +offset]= ((((z1 - z2)*qmul + 128 ) >> 8));
1456 block[stride*10+offset]= ((((z0 - z3)*qmul + 128 ) >> 8));
0da71265
MN		 1457 }
1458}
1459
e5017ab8 1460#if 0
0da71265 1461/**
1412060e 1462 * DCT transforms the 16 dc values.
0da71265
MN		 1463 * @param qp quantization parameter ??? FIXME
1464 */
1465static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
1466// const int qmul= dequant_coeff[qp][0];
1467 int i;
1468 int temp[16]; //FIXME check if this is a good idea
1469 static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
1470 static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
1471
1472 for(i=0; i<4; i++){
1473 const int offset= y_offset[i];
1474 const int z0= block[offset+stride*0] + block[offset+stride*4];
1475 const int z1= block[offset+stride*0] - block[offset+stride*4];
1476 const int z2= block[offset+stride*1] - block[offset+stride*5];
1477 const int z3= block[offset+stride*1] + block[offset+stride*5];
1478
1479 temp[4*i+0]= z0+z3;
1480 temp[4*i+1]= z1+z2;
1481 temp[4*i+2]= z1-z2;
1482 temp[4*i+3]= z0-z3;
1483 }
1484
1485 for(i=0; i<4; i++){
1486 const int offset= x_offset[i];
1487 const int z0= temp[4*0+i] + temp[4*2+i];
1488 const int z1= temp[4*0+i] - temp[4*2+i];
1489 const int z2= temp[4*1+i] - temp[4*3+i];
1490 const int z3= temp[4*1+i] + temp[4*3+i];
1491
1492 block[stride*0 +offset]= (z0 + z3)>>1;
1493 block[stride*2 +offset]= (z1 + z2)>>1;
1494 block[stride*8 +offset]= (z1 - z2)>>1;
1495 block[stride*10+offset]= (z0 - z3)>>1;
1496 }
1497}
e5017ab8
LA		 1498#endif
1499
0da71265
MN		 1500#undef xStride
1501#undef stride
1502
239ea04c 1503static void chroma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){
0da71265
MN		 1504 const int stride= 16*2;
1505 const int xStride= 16;
1506 int a,b,c,d,e;
1507
1508 a= block[stride*0 + xStride*0];
1509 b= block[stride*0 + xStride*1];
1510 c= block[stride*1 + xStride*0];
1511 d= block[stride*1 + xStride*1];
1512
1513 e= a-b;
1514 a= a+b;
1515 b= c-d;
1516 c= c+d;
1517
239ea04c
LM		 1518 block[stride*0 + xStride*0]= ((a+c)*qmul) >> 7;
1519 block[stride*0 + xStride*1]= ((e+b)*qmul) >> 7;
1520 block[stride*1 + xStride*0]= ((a-c)*qmul) >> 7;
1521 block[stride*1 + xStride*1]= ((e-b)*qmul) >> 7;
0da71265
MN		 1522}
1523
e5017ab8 1524#if 0
0da71265
MN		 1525static void chroma_dc_dct_c(DCTELEM *block){
1526 const int stride= 16*2;
1527 const int xStride= 16;
1528 int a,b,c,d,e;
1529
1530 a= block[stride*0 + xStride*0];
1531 b= block[stride*0 + xStride*1];
1532 c= block[stride*1 + xStride*0];
1533 d= block[stride*1 + xStride*1];
1534
1535 e= a-b;
1536 a= a+b;
1537 b= c-d;
1538 c= c+d;
1539
1540 block[stride*0 + xStride*0]= (a+c);
1541 block[stride*0 + xStride*1]= (e+b);
1542 block[stride*1 + xStride*0]= (a-c);
1543 block[stride*1 + xStride*1]= (e-b);
1544}
e5017ab8 1545#endif
0da71265
MN		 1546
1547/**
1548 * gets the chroma qp.
1549 */
4691a77d 1550static inline int get_chroma_qp(H264Context *h, int t, int qscale){
5a78bfbd 1551 return h->pps.chroma_qp_table[t][qscale];
0da71265
MN		 1552}
1553
2cab6401 1554//FIXME need to check that this does not overflow signed 32 bit for low qp, I am not sure, it's very close
0afd2a92
DB		 1555//FIXME check that gcc inlines this (and optimizes intra & separate_dc stuff away)
1556static inline int quantize_c(DCTELEM *block, uint8_t *scantable, int qscale, int intra, int separate_dc){
0da71265
MN		 1557 int i;
1558 const int * const quant_table= quant_coeff[qscale];
1559 const int bias= intra ? (1<<QUANT_SHIFT)/3 : (1<<QUANT_SHIFT)/6;
1560 const unsigned int threshold1= (1<<QUANT_SHIFT) - bias - 1;
1561 const unsigned int threshold2= (threshold1<<1);
1562 int last_non_zero;
1563
0afd2a92 1564 if(separate_dc){
0da71265
MN		 1565 if(qscale<=18){
1566 //avoid overflows
1567 const int dc_bias= intra ? (1<<(QUANT_SHIFT-2))/3 : (1<<(QUANT_SHIFT-2))/6;
1568 const unsigned int dc_threshold1= (1<<(QUANT_SHIFT-2)) - dc_bias - 1;
1569 const unsigned int dc_threshold2= (dc_threshold1<<1);
1570
1571 int level= block[0]*quant_coeff[qscale+18][0];
1572 if(((unsigned)(level+dc_threshold1))>dc_threshold2){
1573 if(level>0){
1574 level= (dc_bias + level)>>(QUANT_SHIFT-2);
1575 block[0]= level;
1576 }else{
1577 level= (dc_bias - level)>>(QUANT_SHIFT-2);
1578 block[0]= -level;
1579 }
1580// last_non_zero = i;
1581 }else{
1582 block[0]=0;
1583 }
1584 }else{
1585 const int dc_bias= intra ? (1<<(QUANT_SHIFT+1))/3 : (1<<(QUANT_SHIFT+1))/6;
1586 const unsigned int dc_threshold1= (1<<(QUANT_SHIFT+1)) - dc_bias - 1;
1587 const unsigned int dc_threshold2= (dc_threshold1<<1);
1588
1589 int level= block[0]*quant_table[0];
1590 if(((unsigned)(level+dc_threshold1))>dc_threshold2){
1591 if(level>0){
1592 level= (dc_bias + level)>>(QUANT_SHIFT+1);
1593 block[0]= level;
1594 }else{
1595 level= (dc_bias - level)>>(QUANT_SHIFT+1);
1596 block[0]= -level;
1597 }
1598// last_non_zero = i;
1599 }else{
1600 block[0]=0;
1601 }
1602 }
1603 last_non_zero= 0;
1604 i=1;
1605 }else{
1606 last_non_zero= -1;
1607 i=0;
1608 }
1609
1610 for(; i<16; i++){
1611 const int j= scantable[i];
1612 int level= block[j]*quant_table[j];
1613
1614// if( bias+level >= (1<<(QMAT_SHIFT - 3))
1615// || bias-level >= (1<<(QMAT_SHIFT - 3))){
1616 if(((unsigned)(level+threshold1))>threshold2){
1617 if(level>0){
1618 level= (bias + level)>>QUANT_SHIFT;
1619 block[j]= level;
1620 }else{
1621 level= (bias - level)>>QUANT_SHIFT;
1622 block[j]= -level;
1623 }
1624 last_non_zero = i;
1625 }else{
1626 block[j]=0;
1627 }
1628 }
1629
1630 return last_non_zero;
1631}
1632
0da71265
MN		 1633static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list,
1634 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
1635 int src_x_offset, int src_y_offset,
1636 qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op){
1637 MpegEncContext * const s = &h->s;
1638 const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8;
5d18eaad 1639 int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8;
0da71265 1640 const int luma_xy= (mx&3) + ((my&3)<<2);
5d18eaad
LM		 1641 uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*h->mb_linesize;
1642 uint8_t * src_cb, * src_cr;
1643 int extra_width= h->emu_edge_width;
1644 int extra_height= h->emu_edge_height;
0da71265
MN		 1645 int emu=0;
1646 const int full_mx= mx>>2;
1647 const int full_my= my>>2;
fbd312fd 1648 const int pic_width = 16*s->mb_width;
0d43dd8c 1649 const int pic_height = 16*s->mb_height >> MB_FIELD;
115329f1 1650
1412060e 1651 if(!pic->data[0]) //FIXME this is unacceptable, some sensible error concealment must be done for missing reference frames
171c4076 1652 return;
115329f1 1653
0da71265
MN		 1654 if(mx&7) extra_width -= 3;
1655 if(my&7) extra_height -= 3;
115329f1
DB		 1656
1657 if( full_mx < 0-extra_width
1658 || full_my < 0-extra_height
1659 || full_mx + 16/*FIXME*/ > pic_width + extra_width
fbd312fd 1660 || full_my + 16/*FIXME*/ > pic_height + extra_height){
5d18eaad
LM		 1661 ff_emulated_edge_mc(s->edge_emu_buffer, src_y - 2 - 2*h->mb_linesize, h->mb_linesize, 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
1662 src_y= s->edge_emu_buffer + 2 + 2*h->mb_linesize;
0da71265
MN		 1663 emu=1;
1664 }
115329f1 1665
5d18eaad 1666 qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); //FIXME try variable height perhaps?
0da71265 1667 if(!square){
5d18eaad 1668 qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize);
0da71265 1669 }
115329f1 1670
87352549 1671 if(ENABLE_GRAY && s->flags&CODEC_FLAG_GRAY) return;
115329f1 1672
0d43dd8c 1673 if(MB_FIELD){
5d18eaad 1674 // chroma offset when predicting from a field of opposite parity
2143b118 1675 my += 2 * ((s->mb_y & 1) - (pic->reference - 1));
5d18eaad
LM		 1676 emu |= (my>>3) < 0 || (my>>3) + 8 >= (pic_height>>1);
1677 }
1678 src_cb= pic->data[1] + (mx>>3) + (my>>3)*h->mb_uvlinesize;
1679 src_cr= pic->data[2] + (mx>>3) + (my>>3)*h->mb_uvlinesize;
1680
0da71265 1681 if(emu){
5d18eaad 1682 ff_emulated_edge_mc(s->edge_emu_buffer, src_cb, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
0da71265
MN		 1683 src_cb= s->edge_emu_buffer;
1684 }
5d18eaad 1685 chroma_op(dest_cb, src_cb, h->mb_uvlinesize, chroma_height, mx&7, my&7);
0da71265
MN		 1686
1687 if(emu){
5d18eaad 1688 ff_emulated_edge_mc(s->edge_emu_buffer, src_cr, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
0da71265
MN		 1689 src_cr= s->edge_emu_buffer;
1690 }
5d18eaad 1691 chroma_op(dest_cr, src_cr, h->mb_uvlinesize, chroma_height, mx&7, my&7);
0da71265
MN		 1692}
1693
9f2d1b4f 1694static inline void mc_part_std(H264Context *h, int n, int square, int chroma_height, int delta,
0da71265
MN		 1695 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
1696 int x_offset, int y_offset,
1697 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
1698 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
1699 int list0, int list1){
1700 MpegEncContext * const s = &h->s;
1701 qpel_mc_func *qpix_op= qpix_put;
1702 h264_chroma_mc_func chroma_op= chroma_put;
115329f1 1703
5d18eaad
LM		 1704 dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize;
1705 dest_cb += x_offset + y_offset*h->mb_uvlinesize;
1706 dest_cr += x_offset + y_offset*h->mb_uvlinesize;
0da71265 1707 x_offset += 8*s->mb_x;
0d43dd8c 1708 y_offset += 8*(s->mb_y >> MB_FIELD);
115329f1 1709
0da71265 1710 if(list0){
1924f3ce 1711 Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ];
0da71265
MN		 1712 mc_dir_part(h, ref, n, square, chroma_height, delta, 0,
1713 dest_y, dest_cb, dest_cr, x_offset, y_offset,
1714 qpix_op, chroma_op);
1715
1716 qpix_op= qpix_avg;
1717 chroma_op= chroma_avg;
1718 }
1719
1720 if(list1){
1924f3ce 1721 Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ];
0da71265
MN		 1722 mc_dir_part(h, ref, n, square, chroma_height, delta, 1,
1723 dest_y, dest_cb, dest_cr, x_offset, y_offset,
1724 qpix_op, chroma_op);
1725 }
1726}
1727
9f2d1b4f
LM		 1728static inline void mc_part_weighted(H264Context *h, int n, int square, int chroma_height, int delta,
1729 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
1730 int x_offset, int y_offset,
1731 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
1732 h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op,
1733 h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg,
1734 int list0, int list1){
1735 MpegEncContext * const s = &h->s;
1736
5d18eaad
LM		 1737 dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize;
1738 dest_cb += x_offset + y_offset*h->mb_uvlinesize;
1739 dest_cr += x_offset + y_offset*h->mb_uvlinesize;
9f2d1b4f 1740 x_offset += 8*s->mb_x;
0d43dd8c 1741 y_offset += 8*(s->mb_y >> MB_FIELD);
115329f1 1742
9f2d1b4f
LM		 1743 if(list0 && list1){
1744 /* don't optimize for luma-only case, since B-frames usually
1745 * use implicit weights => chroma too. */
1746 uint8_t *tmp_cb = s->obmc_scratchpad;
5d18eaad
LM		 1747 uint8_t *tmp_cr = s->obmc_scratchpad + 8;
1748 uint8_t *tmp_y = s->obmc_scratchpad + 8*h->mb_uvlinesize;
9f2d1b4f
LM		 1749 int refn0 = h->ref_cache[0][ scan8[n] ];
1750 int refn1 = h->ref_cache[1][ scan8[n] ];
1751
1752 mc_dir_part(h, &h->ref_list[0][refn0], n, square, chroma_height, delta, 0,
1753 dest_y, dest_cb, dest_cr,
1754 x_offset, y_offset, qpix_put, chroma_put);
1755 mc_dir_part(h, &h->ref_list[1][refn1], n, square, chroma_height, delta, 1,
1756 tmp_y, tmp_cb, tmp_cr,
1757 x_offset, y_offset, qpix_put, chroma_put);
1758
1759 if(h->use_weight == 2){
1760 int weight0 = h->implicit_weight[refn0][refn1];
1761 int weight1 = 64 - weight0;
5d18eaad
LM		 1762 luma_weight_avg( dest_y, tmp_y, h-> mb_linesize, 5, weight0, weight1, 0);
1763 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, 5, weight0, weight1, 0);
1764 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, 5, weight0, weight1, 0);
9f2d1b4f 1765 }else{
5d18eaad 1766 luma_weight_avg(dest_y, tmp_y, h->mb_linesize, h->luma_log2_weight_denom,
115329f1 1767 h->luma_weight[0][refn0], h->luma_weight[1][refn1],
e8b56208 1768 h->luma_offset[0][refn0] + h->luma_offset[1][refn1]);
5d18eaad 1769 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom,
115329f1 1770 h->chroma_weight[0][refn0][0], h->chroma_weight[1][refn1][0],
e8b56208 1771 h->chroma_offset[0][refn0][0] + h->chroma_offset[1][refn1][0]);
5d18eaad 1772 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom,
115329f1 1773 h->chroma_weight[0][refn0][1], h->chroma_weight[1][refn1][1],
e8b56208 1774 h->chroma_offset[0][refn0][1] + h->chroma_offset[1][refn1][1]);
9f2d1b4f
LM		 1775 }
1776 }else{
1777 int list = list1 ? 1 : 0;
1778 int refn = h->ref_cache[list][ scan8[n] ];
1779 Picture *ref= &h->ref_list[list][refn];
1780 mc_dir_part(h, ref, n, square, chroma_height, delta, list,
1781 dest_y, dest_cb, dest_cr, x_offset, y_offset,
1782 qpix_put, chroma_put);
1783
5d18eaad 1784 luma_weight_op(dest_y, h->mb_linesize, h->luma_log2_weight_denom,
9f2d1b4f
LM		 1785 h->luma_weight[list][refn], h->luma_offset[list][refn]);
1786 if(h->use_weight_chroma){
5d18eaad 1787 chroma_weight_op(dest_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom,
9f2d1b4f 1788 h->chroma_weight[list][refn][0], h->chroma_offset[list][refn][0]);
5d18eaad 1789 chroma_weight_op(dest_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom,
9f2d1b4f
LM		 1790 h->chroma_weight[list][refn][1], h->chroma_offset[list][refn][1]);
1791 }
1792 }
1793}
1794
1795static inline void mc_part(H264Context *h, int n, int square, int chroma_height, int delta,
1796 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
1797 int x_offset, int y_offset,
1798 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
1799 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
115329f1 1800 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
9f2d1b4f
LM		 1801 int list0, int list1){
1802 if((h->use_weight==2 && list0 && list1
1803 && (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ] != 32))
1804 || h->use_weight==1)
1805 mc_part_weighted(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
1806 x_offset, y_offset, qpix_put, chroma_put,
1807 weight_op[0], weight_op[3], weight_avg[0], weight_avg[3], list0, list1);
1808 else
1809 mc_part_std(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
1810 x_offset, y_offset, qpix_put, chroma_put, qpix_avg, chroma_avg, list0, list1);
1811}
1812
513fbd8e
LM		 1813static inline void prefetch_motion(H264Context *h, int list){
1814 /* fetch pixels for estimated mv 4 macroblocks ahead
1815 * optimized for 64byte cache lines */
1816 MpegEncContext * const s = &h->s;
1817 const int refn = h->ref_cache[list][scan8[0]];
1818 if(refn >= 0){
1819 const int mx= (h->mv_cache[list][scan8[0]][0]>>2) + 16*s->mb_x + 8;
1820 const int my= (h->mv_cache[list][scan8[0]][1]>>2) + 16*s->mb_y;
1821 uint8_t **src= h->ref_list[list][refn].data;
5d18eaad 1822 int off= mx + (my + (s->mb_x&3)*4)*h->mb_linesize + 64;
513fbd8e
LM		 1823 s->dsp.prefetch(src[0]+off, s->linesize, 4);
1824 off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64;
1825 s->dsp.prefetch(src[1]+off, src[2]-src[1], 2);
1826 }
1827}
1828
0da71265
MN		 1829static void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
1830 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
9f2d1b4f
LM		 1831 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
1832 h264_weight_func *weight_op, h264_biweight_func *weight_avg){
0da71265 1833 MpegEncContext * const s = &h->s;
64514ee8 1834 const int mb_xy= h->mb_xy;
0da71265 1835 const int mb_type= s->current_picture.mb_type[mb_xy];
115329f1 1836
0da71265 1837 assert(IS_INTER(mb_type));
115329f1 1838
513fbd8e
LM		 1839 prefetch_motion(h, 0);
1840
0da71265
MN		 1841 if(IS_16X16(mb_type)){
1842 mc_part(h, 0, 1, 8, 0, dest_y, dest_cb, dest_cr, 0, 0,
1843 qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
9f2d1b4f 1844 &weight_op[0], &weight_avg[0],
0da71265
MN		 1845 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
1846 }else if(IS_16X8(mb_type)){
1847 mc_part(h, 0, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 0,
1848 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
9f2d1b4f 1849 &weight_op[1], &weight_avg[1],
0da71265
MN		 1850 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
1851 mc_part(h, 8, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 4,
1852 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
9f2d1b4f 1853 &weight_op[1], &weight_avg[1],
0da71265
MN		 1854 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
1855 }else if(IS_8X16(mb_type)){
5d18eaad 1856 mc_part(h, 0, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
0da71265 1857 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
9f2d1b4f 1858 &weight_op[2], &weight_avg[2],
0da71265 1859 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
5d18eaad 1860 mc_part(h, 4, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
0da71265 1861 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
9f2d1b4f 1862 &weight_op[2], &weight_avg[2],
0da71265
MN		 1863 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
1864 }else{
1865 int i;
115329f1 1866
0da71265
MN		 1867 assert(IS_8X8(mb_type));
1868
1869 for(i=0; i<4; i++){
1870 const int sub_mb_type= h->sub_mb_type[i];
1871 const int n= 4*i;
1872 int x_offset= (i&1)<<2;
1873 int y_offset= (i&2)<<1;
1874
1875 if(IS_SUB_8X8(sub_mb_type)){
1876 mc_part(h, n, 1, 4, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset,
1877 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
9f2d1b4f 1878 &weight_op[3], &weight_avg[3],
0da71265
MN		 1879 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
1880 }else if(IS_SUB_8X4(sub_mb_type)){
1881 mc_part(h, n , 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset,
1882 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
9f2d1b4f 1883 &weight_op[4], &weight_avg[4],
0da71265
MN		 1884 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
1885 mc_part(h, n+2, 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset+2,
1886 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
9f2d1b4f 1887 &weight_op[4], &weight_avg[4],
0da71265
MN		 1888 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
1889 }else if(IS_SUB_4X8(sub_mb_type)){
5d18eaad 1890 mc_part(h, n , 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset,
0da71265 1891 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
9f2d1b4f 1892 &weight_op[5], &weight_avg[5],
0da71265 1893 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
5d18eaad 1894 mc_part(h, n+1, 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset,
0da71265 1895 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
9f2d1b4f 1896 &weight_op[5], &weight_avg[5],
0da71265
MN		 1897 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
1898 }else{
1899 int j;
1900 assert(IS_SUB_4X4(sub_mb_type));
1901 for(j=0; j<4; j++){
1902 int sub_x_offset= x_offset + 2*(j&1);
1903 int sub_y_offset= y_offset + (j&2);
1904 mc_part(h, n+j, 1, 2, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
1905 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
9f2d1b4f 1906 &weight_op[6], &weight_avg[6],
0da71265
MN		 1907 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
1908 }
1909 }
1910 }
1911 }
513fbd8e
LM		 1912
1913 prefetch_motion(h, 1);
0da71265
MN		 1914}
1915
98a6fff9 1916static av_cold void decode_init_vlc(void){
0da71265
MN		 1917 static int done = 0;
1918
1919 if (!done) {
1920 int i;
910e3668 1921 int offset;
0da71265
MN		 1922 done = 1;
1923
910e3668
AC		 1924 chroma_dc_coeff_token_vlc.table = chroma_dc_coeff_token_vlc_table;
1925 chroma_dc_coeff_token_vlc.table_allocated = chroma_dc_coeff_token_vlc_table_size;
115329f1 1926 init_vlc(&chroma_dc_coeff_token_vlc, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 4*5,
0da71265 1927 &chroma_dc_coeff_token_len [0], 1, 1,
910e3668
AC		 1928 &chroma_dc_coeff_token_bits[0], 1, 1,
1929 INIT_VLC_USE_NEW_STATIC);
0da71265 1930
910e3668 1931 offset = 0;
0da71265 1932 for(i=0; i<4; i++){
910e3668
AC		 1933 coeff_token_vlc[i].table = coeff_token_vlc_tables+offset;
1934 coeff_token_vlc[i].table_allocated = coeff_token_vlc_tables_size[i];
115329f1 1935 init_vlc(&coeff_token_vlc[i], COEFF_TOKEN_VLC_BITS, 4*17,
0da71265 1936 &coeff_token_len [i][0], 1, 1,
910e3668
AC		 1937 &coeff_token_bits[i][0], 1, 1,
1938 INIT_VLC_USE_NEW_STATIC);
1939 offset += coeff_token_vlc_tables_size[i];
0da71265 1940 }
910e3668
AC		 1941 /*
1942 * This is a one time safety check to make sure that
1943 * the packed static coeff_token_vlc table sizes
1944 * were initialized correctly.
1945 */
1946 assert(offset == sizeof(coeff_token_vlc_tables)/(sizeof(VLC_TYPE)*2));
0da71265
MN		 1947
1948 for(i=0; i<3; i++){
910e3668
AC		 1949 chroma_dc_total_zeros_vlc[i].table = chroma_dc_total_zeros_vlc_tables[i];
1950 chroma_dc_total_zeros_vlc[i].table_allocated = chroma_dc_total_zeros_vlc_tables_size;
1951 init_vlc(&chroma_dc_total_zeros_vlc[i],
1952 CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 4,
0da71265 1953 &chroma_dc_total_zeros_len [i][0], 1, 1,
910e3668
AC		 1954 &chroma_dc_total_zeros_bits[i][0], 1, 1,
1955 INIT_VLC_USE_NEW_STATIC);
0da71265
MN		 1956 }
1957 for(i=0; i<15; i++){
910e3668
AC		 1958 total_zeros_vlc[i].table = total_zeros_vlc_tables[i];
1959 total_zeros_vlc[i].table_allocated = total_zeros_vlc_tables_size;
1960 init_vlc(&total_zeros_vlc[i],
1961 TOTAL_ZEROS_VLC_BITS, 16,
0da71265 1962 &total_zeros_len [i][0], 1, 1,
910e3668
AC		 1963 &total_zeros_bits[i][0], 1, 1,
1964 INIT_VLC_USE_NEW_STATIC);
0da71265
MN		 1965 }
1966
1967 for(i=0; i<6; i++){
910e3668
AC		 1968 run_vlc[i].table = run_vlc_tables[i];
1969 run_vlc[i].table_allocated = run_vlc_tables_size;
1970 init_vlc(&run_vlc[i],
1971 RUN_VLC_BITS, 7,
0da71265 1972 &run_len [i][0], 1, 1,
910e3668
AC		 1973 &run_bits[i][0], 1, 1,
1974 INIT_VLC_USE_NEW_STATIC);
0da71265 1975 }
910e3668
AC		 1976 run7_vlc.table = run7_vlc_table,
1977 run7_vlc.table_allocated = run7_vlc_table_size;
115329f1 1978 init_vlc(&run7_vlc, RUN7_VLC_BITS, 16,
0da71265 1979 &run_len [6][0], 1, 1,
910e3668
AC		 1980 &run_bits[6][0], 1, 1,
1981 INIT_VLC_USE_NEW_STATIC);
0da71265
MN		 1982 }
1983}
1984
0da71265 1985static void free_tables(H264Context *h){
7978debd 1986 int i;
afebe2f7 1987 H264Context *hx;
0da71265 1988 av_freep(&h->intra4x4_pred_mode);
e5017ab8
LA		 1989 av_freep(&h->chroma_pred_mode_table);
1990 av_freep(&h->cbp_table);
9e528114
LA		 1991 av_freep(&h->mvd_table[0]);
1992 av_freep(&h->mvd_table[1]);
5ad984c9 1993 av_freep(&h->direct_table);
0da71265
MN		 1994 av_freep(&h->non_zero_count);
1995 av_freep(&h->slice_table_base);
1996 h->slice_table= NULL;
e5017ab8 1997
0da71265
MN		 1998 av_freep(&h->mb2b_xy);
1999 av_freep(&h->mb2b8_xy);
9f2d1b4f 2000
7978debd
AÖ		 2001 for(i = 0; i < MAX_SPS_COUNT; i++)
2002 av_freep(h->sps_buffers + i);
2003
2004 for(i = 0; i < MAX_PPS_COUNT; i++)
2005 av_freep(h->pps_buffers + i);
afebe2f7
AÖ		 2006
2007 for(i = 0; i < h->s.avctx->thread_count; i++) {
2008 hx = h->thread_context[i];
2009 if(!hx) continue;
2010 av_freep(&hx->top_borders[1]);
2011 av_freep(&hx->top_borders[0]);
2012 av_freep(&hx->s.obmc_scratchpad);
afebe2f7 2013 }
0da71265
MN		 2014}
2015
239ea04c
LM		 2016static void init_dequant8_coeff_table(H264Context *h){
2017 int i,q,x;
548a1c8a 2018 const int transpose = (h->s.dsp.h264_idct8_add != ff_h264_idct8_add_c); //FIXME ugly
239ea04c
LM		 2019 h->dequant8_coeff[0] = h->dequant8_buffer[0];
2020 h->dequant8_coeff[1] = h->dequant8_buffer[1];
2021
2022 for(i=0; i<2; i++ ){
2023 if(i && !memcmp(h->pps.scaling_matrix8[0], h->pps.scaling_matrix8[1], 64*sizeof(uint8_t))){
2024 h->dequant8_coeff[1] = h->dequant8_buffer[0];
2025 break;
2026 }
2027
2028 for(q=0; q<52; q++){
acd8d10f
PI		 2029 int shift = ff_div6[q];
2030 int idx = ff_rem6[q];
239ea04c 2031 for(x=0; x<64; x++)
548a1c8a
LM		 2032 h->dequant8_coeff[i][q][transpose ? (x>>3)|((x&7)<<3) : x] =
2033 ((uint32_t)dequant8_coeff_init[idx][ dequant8_coeff_init_scan[((x>>1)&12) | (x&3)] ] *
2034 h->pps.scaling_matrix8[i][x]) << shift;
239ea04c
LM		 2035 }
2036 }
2037}
2038
2039static void init_dequant4_coeff_table(H264Context *h){
2040 int i,j,q,x;
ab2e3e2c 2041 const int transpose = (h->s.dsp.h264_idct_add != ff_h264_idct_add_c); //FIXME ugly
239ea04c
LM		 2042 for(i=0; i<6; i++ ){
2043 h->dequant4_coeff[i] = h->dequant4_buffer[i];
2044 for(j=0; j<i; j++){
2045 if(!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], 16*sizeof(uint8_t))){
2046 h->dequant4_coeff[i] = h->dequant4_buffer[j];
2047 break;
2048 }
2049 }
2050 if(j<i)
2051 continue;
2052
2053 for(q=0; q<52; q++){
acd8d10f
PI		 2054 int shift = ff_div6[q] + 2;
2055 int idx = ff_rem6[q];
239ea04c 2056 for(x=0; x<16; x++)
ab2e3e2c
LM		 2057 h->dequant4_coeff[i][q][transpose ? (x>>2)|((x<<2)&0xF) : x] =
2058 ((uint32_t)dequant4_coeff_init[idx][(x&1) + ((x>>2)&1)] *
239ea04c
LM		 2059 h->pps.scaling_matrix4[i][x]) << shift;
2060 }
2061 }
2062}
2063
2064static void init_dequant_tables(H264Context *h){
2065 int i,x;
2066 init_dequant4_coeff_table(h);
2067 if(h->pps.transform_8x8_mode)
2068 init_dequant8_coeff_table(h);
2069 if(h->sps.transform_bypass){
2070 for(i=0; i<6; i++)
2071 for(x=0; x<16; x++)
2072 h->dequant4_coeff[i][0][x] = 1<<6;
2073 if(h->pps.transform_8x8_mode)
2074 for(i=0; i<2; i++)
2075 for(x=0; x<64; x++)
2076 h->dequant8_coeff[i][0][x] = 1<<6;
2077 }
2078}
2079
2080
0da71265
MN		 2081/**
2082 * allocates tables.
3b66c4c5 2083 * needs width/height
0da71265
MN		 2084 */
2085static int alloc_tables(H264Context *h){
2086 MpegEncContext * const s = &h->s;
7bc9090a 2087 const int big_mb_num= s->mb_stride * (s->mb_height+1);
239ea04c 2088 int x,y;
0da71265
MN		 2089
2090 CHECKED_ALLOCZ(h->intra4x4_pred_mode, big_mb_num * 8 * sizeof(uint8_t))
e5017ab8 2091
53c05b1e 2092 CHECKED_ALLOCZ(h->non_zero_count , big_mb_num * 16 * sizeof(uint8_t))
5d18eaad 2093 CHECKED_ALLOCZ(h->slice_table_base , (big_mb_num+s->mb_stride) * sizeof(uint8_t))
5d0e4cb8 2094 CHECKED_ALLOCZ(h->cbp_table, big_mb_num * sizeof(uint16_t))
0da71265 2095
7526ade2
MN		 2096 CHECKED_ALLOCZ(h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t))
2097 CHECKED_ALLOCZ(h->mvd_table[0], 32*big_mb_num * sizeof(uint16_t));
2098 CHECKED_ALLOCZ(h->mvd_table[1], 32*big_mb_num * sizeof(uint16_t));
2099 CHECKED_ALLOCZ(h->direct_table, 32*big_mb_num * sizeof(uint8_t));
e5017ab8 2100
5d18eaad
LM		 2101 memset(h->slice_table_base, -1, (big_mb_num+s->mb_stride) * sizeof(uint8_t));
2102 h->slice_table= h->slice_table_base + s->mb_stride*2 + 1;
0da71265 2103
a55f20bd
LM		 2104 CHECKED_ALLOCZ(h->mb2b_xy , big_mb_num * sizeof(uint32_t));
2105 CHECKED_ALLOCZ(h->mb2b8_xy , big_mb_num * sizeof(uint32_t));
0da71265
MN		 2106 for(y=0; y<s->mb_height; y++){
2107 for(x=0; x<s->mb_width; x++){
7bc9090a 2108 const int mb_xy= x + y*s->mb_stride;
0da71265
MN		 2109 const int b_xy = 4*x + 4*y*h->b_stride;
2110 const int b8_xy= 2*x + 2*y*h->b8_stride;
115329f1 2111
0da71265
MN		 2112 h->mb2b_xy [mb_xy]= b_xy;
2113 h->mb2b8_xy[mb_xy]= b8_xy;
2114 }
2115 }
9f2d1b4f 2116
9c6221ae
GV		 2117 s->obmc_scratchpad = NULL;
2118
56edbd81
LM		 2119 if(!h->dequant4_coeff[0])
2120 init_dequant_tables(h);
2121
0da71265
MN		 2122 return 0;
2123fail:
2124 free_tables(h);
2125 return -1;
2126}
2127
afebe2f7
AÖ		 2128/**
2129 * Mimic alloc_tables(), but for every context thread.
2130 */
2131static void clone_tables(H264Context *dst, H264Context *src){
2132 dst->intra4x4_pred_mode = src->intra4x4_pred_mode;
2133 dst->non_zero_count = src->non_zero_count;
2134 dst->slice_table = src->slice_table;
2135 dst->cbp_table = src->cbp_table;
2136 dst->mb2b_xy = src->mb2b_xy;
2137 dst->mb2b8_xy = src->mb2b8_xy;
2138 dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
2139 dst->mvd_table[0] = src->mvd_table[0];
2140 dst->mvd_table[1] = src->mvd_table[1];
2141 dst->direct_table = src->direct_table;
2142
afebe2f7
AÖ		 2143 dst->s.obmc_scratchpad = NULL;
2144 ff_h264_pred_init(&dst->hpc, src->s.codec_id);
afebe2f7
AÖ		 2145}
2146
2147/**
2148 * Init context
2149 * Allocate buffers which are not shared amongst multiple threads.
2150 */
2151static int context_init(H264Context *h){
afebe2f7
AÖ		 2152 CHECKED_ALLOCZ(h->top_borders[0], h->s.mb_width * (16+8+8) * sizeof(uint8_t))
2153 CHECKED_ALLOCZ(h->top_borders[1], h->s.mb_width * (16+8+8) * sizeof(uint8_t))
2154
afebe2f7
AÖ		 2155 return 0;
2156fail:
2157 return -1; // free_tables will clean up for us
2158}
2159
98a6fff9 2160static av_cold void common_init(H264Context *h){
0da71265 2161 MpegEncContext * const s = &h->s;
0da71265
MN		 2162
2163 s->width = s->avctx->width;
2164 s->height = s->avctx->height;
2165 s->codec_id= s->avctx->codec->id;
115329f1 2166
c92a30bb 2167 ff_h264_pred_init(&h->hpc, s->codec_id);
0da71265 2168
239ea04c 2169 h->dequant_coeff_pps= -1;
9a41c2c7 2170 s->unrestricted_mv=1;
0da71265 2171 s->decode=1; //FIXME
56edbd81
LM		 2172
2173 memset(h->pps.scaling_matrix4, 16, 6*16*sizeof(uint8_t));
2174 memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t));
0da71265
MN		 2175}
2176
98a6fff9 2177static av_cold int decode_init(AVCodecContext *avctx){
0da71265
MN		 2178 H264Context *h= avctx->priv_data;
2179 MpegEncContext * const s = &h->s;
2180
3edcacde 2181 MPV_decode_defaults(s);
115329f1 2182
0da71265
MN		 2183 s->avctx = avctx;
2184 common_init(h);
2185
2186 s->out_format = FMT_H264;
2187 s->workaround_bugs= avctx->workaround_bugs;
2188
2189 // set defaults
0da71265 2190// s->decode_mb= ff_h263_decode_mb;
9a5a05d0 2191 s->quarter_sample = 1;
0da71265 2192 s->low_delay= 1;
7a9dba3c
MN		 2193
2194 if(avctx->codec_id == CODEC_ID_SVQ3)
2195 avctx->pix_fmt= PIX_FMT_YUVJ420P;
2196 else
1d42f410 2197 avctx->pix_fmt= PIX_FMT_YUV420P;
0da71265 2198
c2212338 2199 decode_init_vlc();
115329f1 2200
26165f99
MR		 2201 if(avctx->extradata_size > 0 && avctx->extradata &&
2202 *(char *)avctx->extradata == 1){
4770b1b4
RT		 2203 h->is_avc = 1;
2204 h->got_avcC = 0;
26165f99
MR		 2205 } else {
2206 h->is_avc = 0;
4770b1b4
RT		 2207 }
2208
afebe2f7 2209 h->thread_context[0] = h;
18c7be65 2210 h->outputed_poc = INT_MIN;
0da71265
MN		 2211 return 0;
2212}
2213
af8aa846 2214static int frame_start(H264Context *h){
0da71265
MN		 2215 MpegEncContext * const s = &h->s;
2216 int i;
2217
af8aa846
MN		 2218 if(MPV_frame_start(s, s->avctx) < 0)
2219 return -1;
0da71265 2220 ff_er_frame_start(s);
3a22d7fa
JD		 2221 /*
2222 * MPV_frame_start uses pict_type to derive key_frame.
2223 * This is incorrect for H.264; IDR markings must be used.
1412060e 2224 * Zero here; IDR markings per slice in frame or fields are ORed in later.
3a22d7fa
JD		 2225 * See decode_nal_units().
2226 */
2227 s->current_picture_ptr->key_frame= 0;
0da71265
MN		 2228
2229 assert(s->linesize && s->uvlinesize);
2230
2231 for(i=0; i<16; i++){
2232 h->block_offset[i]= 4*((scan8[i] - scan8[0])&7) + 4*s->linesize*((scan8[i] - scan8[0])>>3);
6867a90b 2233 h->block_offset[24+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->linesize*((scan8[i] - scan8[0])>>3);
0da71265
MN		 2234 }
2235 for(i=0; i<4; i++){
2236 h->block_offset[16+i]=
2237 h->block_offset[20+i]= 4*((scan8[i] - scan8[0])&7) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3);
6867a90b
LLL		 2238 h->block_offset[24+16+i]=
2239 h->block_offset[24+20+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->uvlinesize*((scan8[i] - scan8[0])>>3);
0da71265
MN		 2240 }
2241
934b0821
LM		 2242 /* can't be in alloc_tables because linesize isn't known there.
2243 * FIXME: redo bipred weight to not require extra buffer? */
afebe2f7
AÖ		 2244 for(i = 0; i < s->avctx->thread_count; i++)
2245 if(!h->thread_context[i]->s.obmc_scratchpad)
2246 h->thread_context[i]->s.obmc_scratchpad = av_malloc(16*2*s->linesize + 8*2*s->uvlinesize);
5d18eaad
LM		 2247
2248 /* some macroblocks will be accessed before they're available */
afebe2f7 2249 if(FRAME_MBAFF || s->avctx->thread_count > 1)
5d18eaad 2250 memset(h->slice_table, -1, (s->mb_height*s->mb_stride-1) * sizeof(uint8_t));
934b0821 2251
0da71265 2252// s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1;
28bb9eb2 2253
1412060e 2254 // We mark the current picture as non-reference after allocating it, so
28bb9eb2
MN		 2255 // that if we break out due to an error it can be released automatically
2256 // in the next MPV_frame_start().
2257 // SVQ3 as well as most other codecs have only last/next/current and thus
2258 // get released even with set reference, besides SVQ3 and others do not
2259 // mark frames as reference later "naturally".
2260 if(s->codec_id != CODEC_ID_SVQ3)
2261 s->current_picture_ptr->reference= 0;
357282c6
MN		 2262
2263 s->current_picture_ptr->field_poc[0]=
2264 s->current_picture_ptr->field_poc[1]= INT_MAX;
5118c6c7 2265 assert(s->current_picture_ptr->long_ref==0);
357282c6 2266
af8aa846 2267 return 0;
0da71265
MN		 2268}
2269
93cc10fa 2270static inline void backup_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int simple){
53c05b1e
MN		 2271 MpegEncContext * const s = &h->s;
2272 int i;
115329f1 2273
53c05b1e
MN		 2274 src_y -= linesize;
2275 src_cb -= uvlinesize;
2276 src_cr -= uvlinesize;
2277
3b66c4c5 2278 // There are two lines saved, the line above the the top macroblock of a pair,
6867a90b 2279 // and the line above the bottom macroblock
6ba71fc4 2280 h->left_border[0]= h->top_borders[0][s->mb_x][15];
53c05b1e
MN		 2281 for(i=1; i<17; i++){
2282 h->left_border[i]= src_y[15+i* linesize];
2283 }
115329f1 2284
6ba71fc4
LLL		 2285 *(uint64_t*)(h->top_borders[0][s->mb_x]+0)= *(uint64_t*)(src_y + 16*linesize);
2286 *(uint64_t*)(h->top_borders[0][s->mb_x]+8)= *(uint64_t*)(src_y +8+16*linesize);
53c05b1e 2287
87352549 2288 if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
6ba71fc4
LLL		 2289 h->left_border[17 ]= h->top_borders[0][s->mb_x][16+7];
2290 h->left_border[17+9]= h->top_borders[0][s->mb_x][24+7];
53c05b1e
MN		 2291 for(i=1; i<9; i++){
2292 h->left_border[i+17 ]= src_cb[7+i*uvlinesize];
2293 h->left_border[i+17+9]= src_cr[7+i*uvlinesize];
2294 }
6ba71fc4
LLL		 2295 *(uint64_t*)(h->top_borders[0][s->mb_x]+16)= *(uint64_t*)(src_cb+8*uvlinesize);
2296 *(uint64_t*)(h->top_borders[0][s->mb_x]+24)= *(uint64_t*)(src_cr+8*uvlinesize);
53c05b1e
MN		 2297 }
2298}
2299
93cc10fa 2300static inline void xchg_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int xchg, int simple){
53c05b1e
MN		 2301 MpegEncContext * const s = &h->s;
2302 int temp8, i;
2303 uint64_t temp64;
b69378e2
AÖ		 2304 int deblock_left;
2305 int deblock_top;
2306 int mb_xy;
2307
2308 if(h->deblocking_filter == 2) {
64514ee8 2309 mb_xy = h->mb_xy;
b69378e2
AÖ		 2310 deblock_left = h->slice_table[mb_xy] == h->slice_table[mb_xy - 1];
2311 deblock_top = h->slice_table[mb_xy] == h->slice_table[h->top_mb_xy];
2312 } else {
2313 deblock_left = (s->mb_x > 0);
2314 deblock_top = (s->mb_y > 0);
2315 }
53c05b1e
MN		 2316
2317 src_y -= linesize + 1;
2318 src_cb -= uvlinesize + 1;
2319 src_cr -= uvlinesize + 1;
2320
2321#define XCHG(a,b,t,xchg)\
2322t= a;\
2323if(xchg)\
2324 a= b;\
2325b= t;
d89dc06a
LM		 2326
2327 if(deblock_left){
2328 for(i = !deblock_top; i<17; i++){
2329 XCHG(h->left_border[i ], src_y [i* linesize], temp8, xchg);
2330 }
2331 }
2332
2333 if(deblock_top){
6ba71fc4
LLL		 2334 XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+0), *(uint64_t*)(src_y +1), temp64, xchg);
2335 XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+8), *(uint64_t*)(src_y +9), temp64, 1);
cad4368a 2336 if(s->mb_x+1 < s->mb_width){
43efd19a
LM		 2337 XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x+1]), *(uint64_t*)(src_y +17), temp64, 1);
2338 }
53c05b1e 2339 }
53c05b1e 2340
87352549 2341 if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
d89dc06a
LM		 2342 if(deblock_left){
2343 for(i = !deblock_top; i<9; i++){
2344 XCHG(h->left_border[i+17 ], src_cb[i*uvlinesize], temp8, xchg);
2345 XCHG(h->left_border[i+17+9], src_cr[i*uvlinesize], temp8, xchg);
2346 }
2347 }
2348 if(deblock_top){
6ba71fc4
LLL		 2349 XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+16), *(uint64_t*)(src_cb+1), temp64, 1);
2350 XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+24), *(uint64_t*)(src_cr+1), temp64, 1);
2351 }
2352 }
2353}
2354
2355static inline void backup_pair_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize){
2356 MpegEncContext * const s = &h->s;
2357 int i;
115329f1 2358
6ba71fc4
LLL		 2359 src_y -= 2 * linesize;
2360 src_cb -= 2 * uvlinesize;
2361 src_cr -= 2 * uvlinesize;
2362
3b66c4c5 2363 // There are two lines saved, the line above the the top macroblock of a pair,
6ba71fc4
LLL		 2364 // and the line above the bottom macroblock
2365 h->left_border[0]= h->top_borders[0][s->mb_x][15];
2366 h->left_border[1]= h->top_borders[1][s->mb_x][15];
2367 for(i=2; i<34; i++){
2368 h->left_border[i]= src_y[15+i* linesize];
2369 }
115329f1 2370
6ba71fc4
LLL		 2371 *(uint64_t*)(h->top_borders[0][s->mb_x]+0)= *(uint64_t*)(src_y + 32*linesize);
2372 *(uint64_t*)(h->top_borders[0][s->mb_x]+8)= *(uint64_t*)(src_y +8+32*linesize);
2373 *(uint64_t*)(h->top_borders[1][s->mb_x]+0)= *(uint64_t*)(src_y + 33*linesize);
2374 *(uint64_t*)(h->top_borders[1][s->mb_x]+8)= *(uint64_t*)(src_y +8+33*linesize);
2375
87352549 2376 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
6ba71fc4
LLL		 2377 h->left_border[34 ]= h->top_borders[0][s->mb_x][16+7];
2378 h->left_border[34+ 1]= h->top_borders[1][s->mb_x][16+7];
2379 h->left_border[34+18 ]= h->top_borders[0][s->mb_x][24+7];
2380 h->left_border[34+18+1]= h->top_borders[1][s->mb_x][24+7];
2381 for(i=2; i<18; i++){
2382 h->left_border[i+34 ]= src_cb[7+i*uvlinesize];
2383 h->left_border[i+34+18]= src_cr[7+i*uvlinesize];
2384 }
2385 *(uint64_t*)(h->top_borders[0][s->mb_x]+16)= *(uint64_t*)(src_cb+16*uvlinesize);
2386 *(uint64_t*)(h->top_borders[0][s->mb_x]+24)= *(uint64_t*)(src_cr+16*uvlinesize);
2387 *(uint64_t*)(h->top_borders[1][s->mb_x]+16)= *(uint64_t*)(src_cb+17*uvlinesize);
2388 *(uint64_t*)(h->top_borders[1][s->mb_x]+24)= *(uint64_t*)(src_cr+17*uvlinesize);
2389 }
2390}
2391
2392static inline void xchg_pair_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int xchg){
2393 MpegEncContext * const s = &h->s;
2394 int temp8, i;
2395 uint64_t temp64;
2396 int deblock_left = (s->mb_x > 0);
5d18eaad 2397 int deblock_top = (s->mb_y > 1);
6ba71fc4 2398
a9c9a240 2399 tprintf(s->avctx, "xchg_pair_border: src_y:%p src_cb:%p src_cr:%p ls:%d uvls:%d\n", src_y, src_cb, src_cr, linesize, uvlinesize);
6ba71fc4
LLL		 2400
2401 src_y -= 2 * linesize + 1;
2402 src_cb -= 2 * uvlinesize + 1;
2403 src_cr -= 2 * uvlinesize + 1;
2404
2405#define XCHG(a,b,t,xchg)\
2406t= a;\
2407if(xchg)\
2408 a= b;\
2409b= t;
2410
2411 if(deblock_left){
2412 for(i = (!deblock_top)<<1; i<34; i++){
2413 XCHG(h->left_border[i ], src_y [i* linesize], temp8, xchg);
2414 }
2415 }
2416
2417 if(deblock_top){
2418 XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+0), *(uint64_t*)(src_y +1), temp64, xchg);
2419 XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+8), *(uint64_t*)(src_y +9), temp64, 1);
2420 XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x]+0), *(uint64_t*)(src_y +1 +linesize), temp64, xchg);
2421 XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x]+8), *(uint64_t*)(src_y +9 +linesize), temp64, 1);
5d18eaad
LM		 2422 if(s->mb_x+1 < s->mb_width){
2423 XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x+1]), *(uint64_t*)(src_y +17), temp64, 1);
2424 XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x+1]), *(uint64_t*)(src_y +17 +linesize), temp64, 1);
2425 }
6ba71fc4
LLL		 2426 }
2427
87352549 2428 if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
6ba71fc4
LLL		 2429 if(deblock_left){
2430 for(i = (!deblock_top) << 1; i<18; i++){
2431 XCHG(h->left_border[i+34 ], src_cb[i*uvlinesize], temp8, xchg);
2432 XCHG(h->left_border[i+34+18], src_cr[i*uvlinesize], temp8, xchg);
2433 }
2434 }
2435 if(deblock_top){
2436 XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+16), *(uint64_t*)(src_cb+1), temp64, 1);
2437 XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+24), *(uint64_t*)(src_cr+1), temp64, 1);
2438 XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x]+16), *(uint64_t*)(src_cb+1 +uvlinesize), temp64, 1);
2439 XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x]+24), *(uint64_t*)(src_cr+1 +uvlinesize), temp64, 1);
53c05b1e 2440 }
53c05b1e
MN		 2441 }
2442}
2443
5a6a6cc7 2444static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple){
0da71265
MN		 2445 MpegEncContext * const s = &h->s;
2446 const int mb_x= s->mb_x;
2447 const int mb_y= s->mb_y;
64514ee8 2448 const int mb_xy= h->mb_xy;
0da71265
MN		 2449 const int mb_type= s->current_picture.mb_type[mb_xy];
2450 uint8_t *dest_y, *dest_cb, *dest_cr;
2451 int linesize, uvlinesize /*dct_offset*/;
2452 int i;
6867a90b 2453 int *block_offset = &h->block_offset[0];
6ba71fc4 2454 const unsigned int bottom = mb_y & 1;
bd91fee3 2455 const int transform_bypass = (s->qscale == 0 && h->sps.transform_bypass), is_h264 = (simple || s->codec_id == CODEC_ID_H264);
36940eca 2456 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
ef9d1d15 2457 void (*idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
0da71265 2458
0da71265
MN		 2459 dest_y = s->current_picture.data[0] + (mb_y * 16* s->linesize ) + mb_x * 16;
2460 dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
2461 dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
2462
a957c27b
LM		 2463 s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + 64, s->linesize, 4);
2464 s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + 64, dest_cr - dest_cb, 2);
2465
bd91fee3 2466 if (!simple && MB_FIELD) {
5d18eaad
LM		 2467 linesize = h->mb_linesize = s->linesize * 2;
2468 uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
6867a90b 2469 block_offset = &h->block_offset[24];
1412060e 2470 if(mb_y&1){ //FIXME move out of this function?
0da71265 2471 dest_y -= s->linesize*15;
6867a90b
LLL		 2472 dest_cb-= s->uvlinesize*7;
2473 dest_cr-= s->uvlinesize*7;
0da71265 2474 }
5d18eaad
LM		 2475 if(FRAME_MBAFF) {
2476 int list;
3425501d 2477 for(list=0; list<h->list_count; list++){
5d18eaad
LM		 2478 if(!USES_LIST(mb_type, list))
2479 continue;
2480 if(IS_16X16(mb_type)){
2481 int8_t *ref = &h->ref_cache[list][scan8[0]];
1710856c 2482 fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);
5d18eaad
LM		 2483 }else{
2484 for(i=0; i<16; i+=4){
2485 //FIXME can refs be smaller than 8x8 when !direct_8x8_inference ?
2486 int ref = h->ref_cache[list][scan8[i]];
2487 if(ref >= 0)
1710856c 2488 fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);
5d18eaad
LM		 2489 }
2490 }
2491 }
2492 }
0da71265 2493 } else {
5d18eaad
LM		 2494 linesize = h->mb_linesize = s->linesize;
2495 uvlinesize = h->mb_uvlinesize = s->uvlinesize;
0da71265
MN		 2496// dct_offset = s->linesize * 16;
2497 }
115329f1 2498
ef9d1d15
LM		 2499 if(transform_bypass){
2500 idct_dc_add =
2501 idct_add = IS_8x8DCT(mb_type) ? s->dsp.add_pixels8 : s->dsp.add_pixels4;
2502 }else if(IS_8x8DCT(mb_type)){
2503 idct_dc_add = s->dsp.h264_idct8_dc_add;
2504 idct_add = s->dsp.h264_idct8_add;
2505 }else{
2506 idct_dc_add = s->dsp.h264_idct_dc_add;
2507 idct_add = s->dsp.h264_idct_add;
2508 }
0da71265 2509
bd91fee3 2510 if(!simple && FRAME_MBAFF && h->deblocking_filter && IS_INTRA(mb_type)
5d18eaad
LM		 2511 && (!bottom || !IS_INTRA(s->current_picture.mb_type[mb_xy-s->mb_stride]))){
2512 int mbt_y = mb_y&~1;
2513 uint8_t *top_y = s->current_picture.data[0] + (mbt_y * 16* s->linesize ) + mb_x * 16;
2514 uint8_t *top_cb = s->current_picture.data[1] + (mbt_y * 8 * s->uvlinesize) + mb_x * 8;
2515 uint8_t *top_cr = s->current_picture.data[2] + (mbt_y * 8 * s->uvlinesize) + mb_x * 8;
2516 xchg_pair_border(h, top_y, top_cb, top_cr, s->linesize, s->uvlinesize, 1);
2517 }
2518
bd91fee3 2519 if (!simple && IS_INTRA_PCM(mb_type)) {
c1708e8d
MN		 2520 for (i=0; i<16; i++) {
2521 memcpy(dest_y + i* linesize, h->mb + i*8, 16);
6fbcaaa0 2522 }
c1708e8d
MN		 2523 for (i=0; i<8; i++) {
2524 memcpy(dest_cb+ i*uvlinesize, h->mb + 128 + i*4, 8);
2525 memcpy(dest_cr+ i*uvlinesize, h->mb + 160 + i*4, 8);
6fbcaaa0 2526 }
e7e09b49
LLL		 2527 } else {
2528 if(IS_INTRA(mb_type)){
bd91fee3 2529 if(h->deblocking_filter && (simple || !FRAME_MBAFF))
93cc10fa 2530 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, simple);
53c05b1e 2531
87352549 2532 if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
c92a30bb
KS		 2533 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
2534 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
e7e09b49 2535 }
0da71265 2536
e7e09b49 2537 if(IS_INTRA4x4(mb_type)){
bd91fee3 2538 if(simple || !s->encoding){
43efd19a
LM		 2539 if(IS_8x8DCT(mb_type)){
2540 for(i=0; i<16; i+=4){
2541 uint8_t * const ptr= dest_y + block_offset[i];
2542 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
ef9d1d15 2543 const int nnz = h->non_zero_count_cache[ scan8[i] ];
c92a30bb 2544 h->hpc.pred8x8l[ dir ](ptr, (h->topleft_samples_available<<i)&0x8000,
4672503d 2545 (h->topright_samples_available<<i)&0x4000, linesize);
ef9d1d15
LM		 2546 if(nnz){
2547 if(nnz == 1 && h->mb[i*16])
2548 idct_dc_add(ptr, h->mb + i*16, linesize);
2549 else
2550 idct_add(ptr, h->mb + i*16, linesize);
2551 }
43efd19a
LM		 2552 }
2553 }else
e7e09b49 2554 for(i=0; i<16; i++){
6867a90b 2555 uint8_t * const ptr= dest_y + block_offset[i];
e7e09b49
LLL		 2556 uint8_t *topright;
2557 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
ef9d1d15 2558 int nnz, tr;
e7e09b49
LLL		 2559
2560 if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
2561 const int topright_avail= (h->topright_samples_available<<i)&0x8000;
6867a90b 2562 assert(mb_y || linesize <= block_offset[i]);
e7e09b49
LLL		 2563 if(!topright_avail){
2564 tr= ptr[3 - linesize]*0x01010101;
2565 topright= (uint8_t*) &tr;
115329f1 2566 }else
e7e09b49 2567 topright= ptr + 4 - linesize;
a9799653 2568 }else
e7e09b49
LLL		 2569 topright= NULL;
2570
c92a30bb 2571 h->hpc.pred4x4[ dir ](ptr, topright, linesize);
ef9d1d15
LM		 2572 nnz = h->non_zero_count_cache[ scan8[i] ];
2573 if(nnz){
bd91fee3 2574 if(is_h264){
ef9d1d15
LM		 2575 if(nnz == 1 && h->mb[i*16])
2576 idct_dc_add(ptr, h->mb + i*16, linesize);
2577 else
2578 idct_add(ptr, h->mb + i*16, linesize);
2579 }else
e7e09b49
LLL		 2580 svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, 0);
2581 }
8b82a956 2582 }
0da71265 2583 }
e7e09b49 2584 }else{
c92a30bb 2585 h->hpc.pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);
bd91fee3 2586 if(is_h264){
36940eca 2587 if(!transform_bypass)
93f0c0a4 2588 h264_luma_dc_dequant_idct_c(h->mb, s->qscale, h->dequant4_coeff[0][s->qscale][0]);
36940eca 2589 }else
e7e09b49 2590 svq3_luma_dc_dequant_idct_c(h->mb, s->qscale);
0da71265 2591 }
bd91fee3 2592 if(h->deblocking_filter && (simple || !FRAME_MBAFF))
93cc10fa 2593 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, simple);
bd91fee3 2594 }else if(is_h264){
e7e09b49 2595 hl_motion(h, dest_y, dest_cb, dest_cr,
2833fc46
LM		 2596 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
2597 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
e7e09b49 2598 s->dsp.weight_h264_pixels_tab, s->dsp.biweight_h264_pixels_tab);
0da71265 2599 }
e7e09b49
LLL		 2600
2601
2602 if(!IS_INTRA4x4(mb_type)){
bd91fee3 2603 if(is_h264){
ef9d1d15
LM		 2604 if(IS_INTRA16x16(mb_type)){
2605 for(i=0; i<16; i++){
2606 if(h->non_zero_count_cache[ scan8[i] ])
2607 idct_add(dest_y + block_offset[i], h->mb + i*16, linesize);
2608 else if(h->mb[i*16])
2609 idct_dc_add(dest_y + block_offset[i], h->mb + i*16, linesize);
2610 }
2611 }else{
2612 const int di = IS_8x8DCT(mb_type) ? 4 : 1;
2613 for(i=0; i<16; i+=di){
2614 int nnz = h->non_zero_count_cache[ scan8[i] ];
2615 if(nnz){
2616 if(nnz==1 && h->mb[i*16])
2617 idct_dc_add(dest_y + block_offset[i], h->mb + i*16, linesize);
2618 else
2619 idct_add(dest_y + block_offset[i], h->mb + i*16, linesize);
2620 }
e7e09b49 2621 }
4704097a 2622 }
e7e09b49
LLL		 2623 }else{
2624 for(i=0; i<16; i++){
2625 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below
6867a90b 2626 uint8_t * const ptr= dest_y + block_offset[i];
e7e09b49
LLL		 2627 svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0);
2628 }
4704097a 2629 }
0da71265
MN		 2630 }
2631 }
0da71265 2632
87352549 2633 if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
ef9d1d15
LM		 2634 uint8_t *dest[2] = {dest_cb, dest_cr};
2635 if(transform_bypass){
2636 idct_add = idct_dc_add = s->dsp.add_pixels4;
2637 }else{
2638 idct_add = s->dsp.h264_idct_add;
2639 idct_dc_add = s->dsp.h264_idct_dc_add;
4691a77d
AÖ		 2640 chroma_dc_dequant_idct_c(h->mb + 16*16, h->chroma_qp[0], h->dequant4_coeff[IS_INTRA(mb_type) ? 1:4][h->chroma_qp[0]][0]);
2641 chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->chroma_qp[1], h->dequant4_coeff[IS_INTRA(mb_type) ? 2:5][h->chroma_qp[1]][0]);
36940eca 2642 }
bd91fee3 2643 if(is_h264){
ef9d1d15
LM		 2644 for(i=16; i<16+8; i++){
2645 if(h->non_zero_count_cache[ scan8[i] ])
2646 idct_add(dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize);
2647 else if(h->mb[i*16])
2648 idct_dc_add(dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize);
4704097a 2649 }
e7e09b49 2650 }else{
ef9d1d15 2651 for(i=16; i<16+8; i++){
e7e09b49 2652 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
ef9d1d15 2653 uint8_t * const ptr= dest[(i&4)>>2] + block_offset[i];
e7e09b49
LLL		 2654 svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2);
2655 }
4704097a 2656 }
0da71265
MN		 2657 }
2658 }
2659 }
53c05b1e 2660 if(h->deblocking_filter) {
bd91fee3 2661 if (!simple && FRAME_MBAFF) {
5d18eaad
LM		 2662 //FIXME try deblocking one mb at a time?
2663 // the reduction in load/storing mvs and such might outweigh the extra backup/xchg_border
6ba71fc4
LLL		 2664 const int mb_y = s->mb_y - 1;
2665 uint8_t *pair_dest_y, *pair_dest_cb, *pair_dest_cr;
2666 const int mb_xy= mb_x + mb_y*s->mb_stride;
2667 const int mb_type_top = s->current_picture.mb_type[mb_xy];
2668 const int mb_type_bottom= s->current_picture.mb_type[mb_xy+s->mb_stride];
6ba71fc4
LLL		 2669 if (!bottom) return;
2670 pair_dest_y = s->current_picture.data[0] + (mb_y * 16* s->linesize ) + mb_x * 16;
2671 pair_dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
2672 pair_dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
2673
5d18eaad
LM		 2674 if(IS_INTRA(mb_type_top | mb_type_bottom))
2675 xchg_pair_border(h, pair_dest_y, pair_dest_cb, pair_dest_cr, s->linesize, s->uvlinesize, 0);
2676
6ba71fc4 2677 backup_pair_border(h, pair_dest_y, pair_dest_cb, pair_dest_cr, s->linesize, s->uvlinesize);
5d18eaad 2678 // deblock a pair
115329f1 2679 // top
64514ee8 2680 s->mb_y--; h->mb_xy -= s->mb_stride;
a9c9a240 2681 tprintf(h->s.avctx, "call mbaff filter_mb mb_x:%d mb_y:%d pair_dest_y = %p, dest_y = %p\n", mb_x, mb_y, pair_dest_y, dest_y);
3b66c4c5 2682 fill_caches(h, mb_type_top, 1); //FIXME don't fill stuff which isn't used by filter_mb
4691a77d
AÖ		 2683 h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.qscale_table[mb_xy]);
2684 h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.qscale_table[mb_xy]);
6ba71fc4 2685 filter_mb(h, mb_x, mb_y, pair_dest_y, pair_dest_cb, pair_dest_cr, linesize, uvlinesize);
6ba71fc4 2686 // bottom
64514ee8 2687 s->mb_y++; h->mb_xy += s->mb_stride;
a9c9a240 2688 tprintf(h->s.avctx, "call mbaff filter_mb\n");
3b66c4c5 2689 fill_caches(h, mb_type_bottom, 1); //FIXME don't fill stuff which isn't used by filter_mb
4691a77d
AÖ		 2690 h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.qscale_table[mb_xy+s->mb_stride]);
2691 h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.qscale_table[mb_xy+s->mb_stride]);
6ba71fc4 2692 filter_mb(h, mb_x, mb_y+1, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
6ba71fc4 2693 } else {
a9c9a240 2694 tprintf(h->s.avctx, "call filter_mb\n");
93cc10fa 2695 backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, simple);
3b66c4c5 2696 fill_caches(h, mb_type, 1); //FIXME don't fill stuff which isn't used by filter_mb
a82688b0
MN		 2697 h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.qscale_table[mb_xy]);
2698 h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.qscale_table[mb_xy]);
3e20143e 2699 filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
6ba71fc4 2700 }
53c05b1e 2701 }
0da71265
MN		 2702}
2703
0da71265 2704/**
bd91fee3
AS		 2705 * Process a macroblock; this case avoids checks for expensive uncommon cases.
2706 */
2707static void hl_decode_mb_simple(H264Context *h){
2708 hl_decode_mb_internal(h, 1);
2709}
2710
2711/**
2712 * Process a macroblock; this handles edge cases, such as interlacing.
2713 */
2714static void av_noinline hl_decode_mb_complex(H264Context *h){
2715 hl_decode_mb_internal(h, 0);
2716}
2717
2718static void hl_decode_mb(H264Context *h){
2719 MpegEncContext * const s = &h->s;
64514ee8 2720 const int mb_xy= h->mb_xy;
bd91fee3 2721 const int mb_type= s->current_picture.mb_type[mb_xy];
58cc7dd9
AS		 2722 int is_complex = FRAME_MBAFF || MB_FIELD || IS_INTRA_PCM(mb_type) || s->codec_id != CODEC_ID_H264 ||
2723 (ENABLE_GRAY && (s->flags&CODEC_FLAG_GRAY)) || (ENABLE_H264_ENCODER && s->encoding) || ENABLE_SMALL;
bd91fee3 2724
fedec603 2725 if(ENABLE_H264_ENCODER && !s->decode)
bd91fee3
AS		 2726 return;
2727
2728 if (is_complex)
2729 hl_decode_mb_complex(h);
2730 else hl_decode_mb_simple(h);
2731}
2732
2143b118 2733static void pic_as_field(Picture *pic, const int parity){
11cc1d8c
JD		 2734 int i;
2735 for (i = 0; i < 4; ++i) {
2143b118 2736 if (parity == PICT_BOTTOM_FIELD)
11cc1d8c 2737 pic->data[i] += pic->linesize[i];
2143b118 2738 pic->reference = parity;
11cc1d8c
JD		 2739 pic->linesize[i] *= 2;
2740 }
2879c75f 2741 pic->poc= pic->field_poc[parity == PICT_BOTTOM_FIELD];
11cc1d8c
JD		 2742}
2743
2744static int split_field_copy(Picture *dest, Picture *src,
2745 int parity, int id_add){
2746 int match = !!(src->reference & parity);
2747
2748 if (match) {
2749 *dest = *src;
d4f7d838 2750 if(parity != PICT_FRAME){
b3e93fd4
MN		 2751 pic_as_field(dest, parity);
2752 dest->pic_id *= 2;
2753 dest->pic_id += id_add;
d4f7d838 2754 }
11cc1d8c
JD		 2755 }
2756
2757 return match;
2758}
2759
d4f7d838
MN		 2760static int build_def_list(Picture *def, Picture **in, int len, int is_long, int sel){
2761 int i[2]={0};
2762 int index=0;
11cc1d8c 2763
d4f7d838
MN		 2764 while(i[0]<len || i[1]<len){
2765 while(i[0]<len && !(in[ i[0] ] && (in[ i[0] ]->reference & sel)))
2766 i[0]++;
2767 while(i[1]<len && !(in[ i[1] ] && (in[ i[1] ]->reference & (sel^3))))
2768 i[1]++;
2769 if(i[0] < len){
2770 in[ i[0] ]->pic_id= is_long ? i[0] : in[ i[0] ]->frame_num;
2771 split_field_copy(&def[index++], in[ i[0]++ ], sel , 1);
2772 }
2773 if(i[1] < len){
2774 in[ i[1] ]->pic_id= is_long ? i[1] : in[ i[1] ]->frame_num;
2775 split_field_copy(&def[index++], in[ i[1]++ ], sel^3, 0);
11cc1d8c
JD		 2776 }
2777 }
2778
d4f7d838 2779 return index;
11cc1d8c
JD		 2780}
2781
d4f7d838
MN		 2782static int add_sorted(Picture **sorted, Picture **src, int len, int limit, int dir){
2783 int i, best_poc;
2784 int out_i= 0;
11cc1d8c 2785
d4f7d838
MN		 2786 for(;;){
2787 best_poc= dir ? INT_MIN : INT_MAX;
11cc1d8c 2788
d4f7d838
MN		 2789 for(i=0; i<len; i++){
2790 const int poc= src[i]->poc;
2791 if(((poc > limit) ^ dir) && ((poc < best_poc) ^ dir)){
2792 best_poc= poc;
2793 sorted[out_i]= src[i];
2794 }
2795 }
2796 if(best_poc == (dir ? INT_MIN : INT_MAX))
2797 break;
2798 limit= sorted[out_i++]->poc - dir;
2799 }
2800 return out_i;
11cc1d8c
JD		 2801}
2802
bd91fee3 2803/**
0da71265
MN		 2804 * fills the default_ref_list.
2805 */
2806static int fill_default_ref_list(H264Context *h){
2807 MpegEncContext * const s = &h->s;
d4f7d838 2808 int i, len;
115329f1 2809
9f5c1037 2810 if(h->slice_type_nos==FF_B_TYPE){
d4f7d838
MN		 2811 Picture *sorted[32];
2812 int cur_poc, list;
2813 int lens[2];
11cc1d8c 2814
d4f7d838
MN		 2815 if(FIELD_PICTURE)
2816 cur_poc= s->current_picture_ptr->field_poc[ s->picture_structure == PICT_BOTTOM_FIELD ];
2817 else
2818 cur_poc= s->current_picture_ptr->poc;
086acdd5 2819
d4f7d838
MN		 2820 for(list= 0; list<2; list++){
2821 len= add_sorted(sorted , h->short_ref, h->short_ref_count, cur_poc, 1^list);
2822 len+=add_sorted(sorted+len, h->short_ref, h->short_ref_count, cur_poc, 0^list);
2823 assert(len<=32);
2824 len= build_def_list(h->default_ref_list[list] , sorted , len, 0, s->picture_structure);
2825 len+=build_def_list(h->default_ref_list[list]+len, h->long_ref, 16 , 1, s->picture_structure);
2826 assert(len<=32);
086acdd5 2827
d4f7d838
MN		 2828 if(len < h->ref_count[list])
2829 memset(&h->default_ref_list[list][len], 0, sizeof(Picture)*(h->ref_count[list] - len));
2830 lens[list]= len;
086acdd5
JD		 2831 }
2832
d4f7d838
MN		 2833 if(lens[0] == lens[1] && lens[1] > 1){
2834 for(i=0; h->default_ref_list[0][i].data[0] == h->default_ref_list[1][i].data[0] && i<lens[0]; i++);
2835 if(i == lens[0])
2836 FFSWAP(Picture, h->default_ref_list[1][0], h->default_ref_list[1][1]);
086acdd5 2837 }
086acdd5 2838 }else{
d4f7d838
MN		 2839 len = build_def_list(h->default_ref_list[0] , h->short_ref, h->short_ref_count, 0, s->picture_structure);
2840 len+= build_def_list(h->default_ref_list[0]+len, h-> long_ref, 16 , 1, s->picture_structure);
2841 assert(len <= 32);
2842 if(len < h->ref_count[0])
2843 memset(&h->default_ref_list[0][len], 0, sizeof(Picture)*(h->ref_count[0] - len));
0da71265 2844 }
827c91bf
LLL		 2845#ifdef TRACE
2846 for (i=0; i<h->ref_count[0]; i++) {
a9c9a240 2847 tprintf(h->s.avctx, "List0: %s fn:%d 0x%p\n", (h->default_ref_list[0][i].long_ref ? "LT" : "ST"), h->default_ref_list[0][i].pic_id, h->default_ref_list[0][i].data[0]);
827c91bf 2848 }
9f5c1037 2849 if(h->slice_type_nos==FF_B_TYPE){
827c91bf 2850 for (i=0; i<h->ref_count[1]; i++) {
ffbc5e04 2851 tprintf(h->s.avctx, "List1: %s fn:%d 0x%p\n", (h->default_ref_list[1][i].long_ref ? "LT" : "ST"), h->default_ref_list[1][i].pic_id, h->default_ref_list[1][i].data[0]);
827c91bf
LLL		 2852 }
2853 }
2854#endif
0da71265
MN		 2855 return 0;
2856}
2857
827c91bf
LLL		 2858static void print_short_term(H264Context *h);
2859static void print_long_term(H264Context *h);
2860
949da388
JD		 2861/**
2862 * Extract structure information about the picture described by pic_num in
2863 * the current decoding context (frame or field). Note that pic_num is
2864 * picture number without wrapping (so, 0<=pic_num<max_pic_num).
2865 * @param pic_num picture number for which to extract structure information
2866 * @param structure one of PICT_XXX describing structure of picture
2867 * with pic_num
2868 * @return frame number (short term) or long term index of picture
2869 * described by pic_num
2870 */
2871static int pic_num_extract(H264Context *h, int pic_num, int *structure){
2872 MpegEncContext * const s = &h->s;
2873
2874 *structure = s->picture_structure;
2875 if(FIELD_PICTURE){
2876 if (!(pic_num & 1))
2877 /* opposite field */
2878 *structure ^= PICT_FRAME;
2879 pic_num >>= 1;
2880 }
2881
2882 return pic_num;
2883}
2884
0da71265
MN		 2885static int decode_ref_pic_list_reordering(H264Context *h){
2886 MpegEncContext * const s = &h->s;
949da388 2887 int list, index, pic_structure;
115329f1 2888
827c91bf
LLL		 2889 print_short_term(h);
2890 print_long_term(h);
115329f1 2891
3425501d 2892 for(list=0; list<h->list_count; list++){
0da71265
MN		 2893 memcpy(h->ref_list[list], h->default_ref_list[list], sizeof(Picture)*h->ref_count[list]);
2894
2895 if(get_bits1(&s->gb)){
2896 int pred= h->curr_pic_num;
0da71265
MN		 2897
2898 for(index=0; ; index++){
88e7a4d1
MN		 2899 unsigned int reordering_of_pic_nums_idc= get_ue_golomb(&s->gb);
2900 unsigned int pic_id;
0da71265 2901 int i;
2f944356 2902 Picture *ref = NULL;
115329f1
DB		 2903
2904 if(reordering_of_pic_nums_idc==3)
0bc42cad 2905 break;
115329f1 2906
0da71265 2907 if(index >= h->ref_count[list]){
9b879566 2908 av_log(h->s.avctx, AV_LOG_ERROR, "reference count overflow\n");
0da71265
MN		 2909 return -1;
2910 }
115329f1 2911
0da71265
MN		 2912 if(reordering_of_pic_nums_idc<3){
2913 if(reordering_of_pic_nums_idc<2){
88e7a4d1 2914 const unsigned int abs_diff_pic_num= get_ue_golomb(&s->gb) + 1;
949da388 2915 int frame_num;
0da71265 2916
03d3cab8 2917 if(abs_diff_pic_num > h->max_pic_num){
9b879566 2918 av_log(h->s.avctx, AV_LOG_ERROR, "abs_diff_pic_num overflow\n");
0da71265
MN		 2919 return -1;
2920 }
2921
2922 if(reordering_of_pic_nums_idc == 0) pred-= abs_diff_pic_num;
2923 else pred+= abs_diff_pic_num;
2924 pred &= h->max_pic_num - 1;
115329f1 2925
949da388
JD		 2926 frame_num = pic_num_extract(h, pred, &pic_structure);
2927
0d175622
MN		 2928 for(i= h->short_ref_count-1; i>=0; i--){
2929 ref = h->short_ref[i];
949da388 2930 assert(ref->reference);
0d175622 2931 assert(!ref->long_ref);
6edac8e1 2932 if(
af8c5e08
MN		 2933 ref->frame_num == frame_num &&
2934 (ref->reference & pic_structure)
6edac8e1 2935 )
0da71265
MN		 2936 break;
2937 }
0d175622 2938 if(i>=0)
949da388 2939 ref->pic_id= pred;
0da71265 2940 }else{
949da388 2941 int long_idx;
0da71265 2942 pic_id= get_ue_golomb(&s->gb); //long_term_pic_idx
949da388
JD		 2943
2944 long_idx= pic_num_extract(h, pic_id, &pic_structure);
2945
2946 if(long_idx>31){
88e7a4d1
MN		 2947 av_log(h->s.avctx, AV_LOG_ERROR, "long_term_pic_idx overflow\n");
2948 return -1;
2949 }
949da388
JD		 2950 ref = h->long_ref[long_idx];
2951 assert(!(ref && !ref->reference));
af8c5e08 2952 if(ref && (ref->reference & pic_structure)){
ac658be5 2953 ref->pic_id= pic_id;
ac658be5
FOL		 2954 assert(ref->long_ref);
2955 i=0;
2956 }else{
2957 i=-1;
2958 }
0da71265
MN		 2959 }
2960
0d315f28 2961 if (i < 0) {
9b879566 2962 av_log(h->s.avctx, AV_LOG_ERROR, "reference picture missing during reorder\n");
0da71265 2963 memset(&h->ref_list[list][index], 0, sizeof(Picture)); //FIXME
0d175622
MN		 2964 } else {
2965 for(i=index; i+1<h->ref_count[list]; i++){
2966 if(ref->long_ref == h->ref_list[list][i].long_ref && ref->pic_id == h->ref_list[list][i].pic_id)
2967 break;
21be92bf
MN		 2968 }
2969 for(; i > index; i--){
2970 h->ref_list[list][i]= h->ref_list[list][i-1];
2971 }
0d175622 2972 h->ref_list[list][index]= *ref;
949da388 2973 if (FIELD_PICTURE){
2143b118 2974 pic_as_field(&h->ref_list[list][index], pic_structure);
949da388 2975 }
0da71265 2976 }
0bc42cad 2977 }else{
9b879566 2978 av_log(h->s.avctx, AV_LOG_ERROR, "illegal reordering_of_pic_nums_idc\n");
0da71265
MN		 2979 return -1;
2980 }
2981 }
2982 }
0da71265 2983 }
3425501d 2984 for(list=0; list<h->list_count; list++){
6ab87211 2985 for(index= 0; index < h->ref_count[list]; index++){
79b5c776
MN		 2986 if(!h->ref_list[list][index].data[0]){
2987 av_log(h->s.avctx, AV_LOG_ERROR, "Missing reference picture\n");
2988 h->ref_list[list][index]= s->current_picture; //FIXME this is not a sensible solution
2989 }
6ab87211 2990 }
6ab87211 2991 }
115329f1 2992
9f5c1037 2993 if(h->slice_type_nos==FF_B_TYPE && !h->direct_spatial_mv_pred)
5ad984c9 2994 direct_dist_scale_factor(h);
2f944356 2995 direct_ref_list_init(h);
115329f1 2996 return 0;
0da71265
MN		 2997}
2998
91c58c94 2999static void fill_mbaff_ref_list(H264Context *h){
5d18eaad 3000 int list, i, j;
3425501d 3001 for(list=0; list<2; list++){ //FIXME try list_count
5d18eaad
LM		 3002 for(i=0; i<h->ref_count[list]; i++){
3003 Picture *frame = &h->ref_list[list][i];
3004 Picture *field = &h->ref_list[list][16+2*i];
3005 field[0] = *frame;
3006 for(j=0; j<3; j++)
3007 field[0].linesize[j] <<= 1;
2143b118 3008 field[0].reference = PICT_TOP_FIELD;
5d18eaad
LM		 3009 field[1] = field[0];
3010 for(j=0; j<3; j++)
3011 field[1].data[j] += frame->linesize[j];
2143b118 3012 field[1].reference = PICT_BOTTOM_FIELD;
5d18eaad
LM		 3013
3014 h->luma_weight[list][16+2*i] = h->luma_weight[list][16+2*i+1] = h->luma_weight[list][i];
3015 h->luma_offset[list][16+2*i] = h->luma_offset[list][16+2*i+1] = h->luma_offset[list][i];
3016 for(j=0; j<2; j++){
3017 h->chroma_weight[list][16+2*i][j] = h->chroma_weight[list][16+2*i+1][j] = h->chroma_weight[list][i][j];
3018 h->chroma_offset[list][16+2*i][j] = h->chroma_offset[list][16+2*i+1][j] = h->chroma_offset[list][i][j];
3019 }
3020 }
3021 }
3022 for(j=0; j<h->ref_count[1]; j++){
3023 for(i=0; i<h->ref_count[0]; i++)
3024 h->implicit_weight[j][16+2*i] = h->implicit_weight[j][16+2*i+1] = h->implicit_weight[j][i];
3025 memcpy(h->implicit_weight[16+2*j], h->implicit_weight[j], sizeof(*h->implicit_weight));
3026 memcpy(h->implicit_weight[16+2*j+1], h->implicit_weight[j], sizeof(*h->implicit_weight));
3027 }
3028}
3029
0da71265
MN		 3030static int pred_weight_table(H264Context *h){
3031 MpegEncContext * const s = &h->s;
3032 int list, i;
9f2d1b4f 3033 int luma_def, chroma_def;
115329f1 3034
9f2d1b4f
LM		 3035 h->use_weight= 0;
3036 h->use_weight_chroma= 0;
0da71265
MN		 3037 h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
3038 h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
9f2d1b4f
LM		 3039 luma_def = 1<<h->luma_log2_weight_denom;
3040 chroma_def = 1<<h->chroma_log2_weight_denom;
0da71265
MN		 3041
3042 for(list=0; list<2; list++){
3043 for(i=0; i<h->ref_count[list]; i++){
3044 int luma_weight_flag, chroma_weight_flag;
115329f1 3045
0da71265
MN		 3046 luma_weight_flag= get_bits1(&s->gb);
3047 if(luma_weight_flag){
3048 h->luma_weight[list][i]= get_se_golomb(&s->gb);
3049 h->luma_offset[list][i]= get_se_golomb(&s->gb);
9f2d1b4f
LM		 3050 if( h->luma_weight[list][i] != luma_def
3051 || h->luma_offset[list][i] != 0)
3052 h->use_weight= 1;
3053 }else{
3054 h->luma_weight[list][i]= luma_def;
3055 h->luma_offset[list][i]= 0;
0da71265
MN		 3056 }
3057
0af6967e 3058 if(CHROMA){
fef744d4
MN		 3059 chroma_weight_flag= get_bits1(&s->gb);
3060 if(chroma_weight_flag){
3061 int j;
3062 for(j=0; j<2; j++){
3063 h->chroma_weight[list][i][j]= get_se_golomb(&s->gb);
3064 h->chroma_offset[list][i][j]= get_se_golomb(&s->gb);
3065 if( h->chroma_weight[list][i][j] != chroma_def
3066 || h->chroma_offset[list][i][j] != 0)
3067 h->use_weight_chroma= 1;
3068 }
3069 }else{
3070 int j;
3071 for(j=0; j<2; j++){
3072 h->chroma_weight[list][i][j]= chroma_def;
3073 h->chroma_offset[list][i][j]= 0;
3074 }
0da71265
MN		 3075 }
3076 }
3077 }
9f5c1037 3078 if(h->slice_type_nos != FF_B_TYPE) break;
0da71265 3079 }
9f2d1b4f 3080 h->use_weight= h->use_weight || h->use_weight_chroma;
0da71265
MN		 3081 return 0;
3082}
3083
9f2d1b4f
LM		 3084static void implicit_weight_table(H264Context *h){
3085 MpegEncContext * const s = &h->s;
9f2d1b4f
LM		 3086 int ref0, ref1;
3087 int cur_poc = s->current_picture_ptr->poc;
3088
3089 if( h->ref_count[0] == 1 && h->ref_count[1] == 1
3090 && h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){
3091 h->use_weight= 0;
3092 h->use_weight_chroma= 0;
3093 return;
3094 }
3095
3096 h->use_weight= 2;
3097 h->use_weight_chroma= 2;
3098 h->luma_log2_weight_denom= 5;
3099 h->chroma_log2_weight_denom= 5;
3100
9f2d1b4f
LM		 3101 for(ref0=0; ref0 < h->ref_count[0]; ref0++){
3102 int poc0 = h->ref_list[0][ref0].poc;
3103 for(ref1=0; ref1 < h->ref_count[1]; ref1++){
738386a5 3104 int poc1 = h->ref_list[1][ref1].poc;
f66e4f5f 3105 int td = av_clip(poc1 - poc0, -128, 127);
9f2d1b4f 3106 if(td){
f66e4f5f 3107 int tb = av_clip(cur_poc - poc0, -128, 127);
c26abfa5 3108 int tx = (16384 + (FFABS(td) >> 1)) / td;
f66e4f5f 3109 int dist_scale_factor = av_clip((tb*tx + 32) >> 6, -1024, 1023) >> 2;
9f2d1b4f
LM		 3110 if(dist_scale_factor < -64 || dist_scale_factor > 128)
3111 h->implicit_weight[ref0][ref1] = 32;
3112 else
3113 h->implicit_weight[ref0][ref1] = 64 - dist_scale_factor;
3114 }else
3115 h->implicit_weight[ref0][ref1] = 32;
3116 }
3117 }
3118}
3119
8fd57a66
JD		 3120/**
3121 * Mark a picture as no longer needed for reference. The refmask
3122 * argument allows unreferencing of individual fields or the whole frame.
3123 * If the picture becomes entirely unreferenced, but is being held for
3124 * display purposes, it is marked as such.
3125 * @param refmask mask of fields to unreference; the mask is bitwise
3126 * anded with the reference marking of pic
3127 * @return non-zero if pic becomes entirely unreferenced (except possibly
3128 * for display purposes) zero if one of the fields remains in
3129 * reference
3130 */
3131static inline int unreference_pic(H264Context *h, Picture *pic, int refmask){
4e4d983e 3132 int i;
8fd57a66
JD		 3133 if (pic->reference &= refmask) {
3134 return 0;
3135 } else {
79f4494a
MN		 3136 for(i = 0; h->delayed_pic[i]; i++)
3137 if(pic == h->delayed_pic[i]){
3138 pic->reference=DELAYED_PIC_REF;
3139 break;
3140 }
8fd57a66
JD		 3141 return 1;
3142 }
4e4d983e
LM		 3143}
3144
0da71265 3145/**
5175b937 3146 * instantaneous decoder refresh.
0da71265
MN		 3147 */
3148static void idr(H264Context *h){
4e4d983e 3149 int i;
0da71265 3150
dc032f33 3151 for(i=0; i<16; i++){
9c0e4624 3152 remove_long(h, i, 0);
0da71265 3153 }
849b9cef 3154 assert(h->long_ref_count==0);
0da71265
MN		 3155
3156 for(i=0; i<h->short_ref_count; i++){
8fd57a66 3157 unreference_pic(h, h->short_ref[i], 0);
0da71265
MN		 3158 h->short_ref[i]= NULL;
3159 }
3160 h->short_ref_count=0;
a149c1a5 3161 h->prev_frame_num= 0;
80f8e035
MN		 3162 h->prev_frame_num_offset= 0;
3163 h->prev_poc_msb=
3164 h->prev_poc_lsb= 0;
0da71265
MN		 3165}
3166
7c33ad19
LM		 3167/* forget old pics after a seek */
3168static void flush_dpb(AVCodecContext *avctx){
3169 H264Context *h= avctx->priv_data;
3170 int i;
64b9d48f 3171 for(i=0; i<MAX_DELAYED_PIC_COUNT; i++) {
285b570f
LM		 3172 if(h->delayed_pic[i])
3173 h->delayed_pic[i]->reference= 0;
7c33ad19 3174 h->delayed_pic[i]= NULL;
285b570f 3175 }
df8a7dff 3176 h->outputed_poc= INT_MIN;
7c33ad19 3177 idr(h);
ca159196
MR		 3178 if(h->s.current_picture_ptr)
3179 h->s.current_picture_ptr->reference= 0;
12d96de3 3180 h->s.first_field= 0;
e240f898 3181 ff_mpeg_flush(avctx);
7c33ad19
LM		 3182}
3183
0da71265 3184/**
47e112f8
JD		 3185 * Find a Picture in the short term reference list by frame number.
3186 * @param frame_num frame number to search for
3187 * @param idx the index into h->short_ref where returned picture is found
3188 * undefined if no picture found.
3189 * @return pointer to the found picture, or NULL if no pic with the provided
3190 * frame number is found
0da71265 3191 */
47e112f8 3192static Picture * find_short(H264Context *h, int frame_num, int *idx){
1924f3ce 3193 MpegEncContext * const s = &h->s;
0da71265 3194 int i;
115329f1 3195
0da71265
MN		 3196 for(i=0; i<h->short_ref_count; i++){
3197 Picture *pic= h->short_ref[i];
1924f3ce 3198 if(s->avctx->debug&FF_DEBUG_MMCO)
9b879566 3199 av_log(h->s.avctx, AV_LOG_DEBUG, "%d %d %p\n", i, pic->frame_num, pic);
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JD		 3200 if(pic->frame_num == frame_num) {
3201 *idx = i;
0da71265
MN		 3202 return pic;
3203 }
3204 }
3205 return NULL;
3206}
3207
3208/**
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JD		 3209 * Remove a picture from the short term reference list by its index in
3210 * that list. This does no checking on the provided index; it is assumed
3211 * to be valid. Other list entries are shifted down.
3212 * @param i index into h->short_ref of picture to remove.
3213 */
3214static void remove_short_at_index(H264Context *h, int i){
e1f15d38 3215 assert(i >= 0 && i < h->short_ref_count);
47e112f8
JD		 3216 h->short_ref[i]= NULL;