Bump minor version as av_log_missing_feature() was added to public API in
[libav.git] / libavcodec / h264.c
CommitLineData
0da71265
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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
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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,
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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
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22/**
23 * @file h264.c
24 * H.264 / AVC / MPEG4 part10 codec.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
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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
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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];
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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;
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56static VLC_TYPE chroma_dc_coeff_token_vlc_table[256][2];
57static const int chroma_dc_coeff_token_vlc_table_size = 256;
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58
59static VLC total_zeros_vlc[15];
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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];
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64static VLC_TYPE chroma_dc_total_zeros_vlc_tables[3][8][2];
65static const int chroma_dc_total_zeros_vlc_tables_size = 8;
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66
67static VLC run_vlc[6];
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68static VLC_TYPE run_vlc_tables[6][8][2];
69static const int run_vlc_tables_size = 8;
70
0da71265 71static VLC run7_vlc;
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72static VLC_TYPE run7_vlc_table[96][2];
73static const int run7_vlc_table_size = 96;
0da71265 74
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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){
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82#ifdef WORDS_BIGENDIAN
83 return (b&0xFFFF) + (a<<16);
84#else
85 return (a&0xFFFF) + (b<<16);
86#endif
87}
88
acd8d10f
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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
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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;
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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;
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111 int i;
112
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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
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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){
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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;
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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;
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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 }
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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;
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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 184
e248cb60 185 if(MB_MBAFF && !IS_INTRA(mb_type)){
5d18eaad 186 int list;
3425501d 187 for(list=0; list<h->list_count; list++){
e248cb60
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188 //These values where changed for ease of performing MC, we need to change them back
189 //FIXME maybe we can make MC and loop filter use the same values or prevent
190 //the MC code from changing ref_cache and rather use a temporary array.
5d18eaad 191 if(USES_LIST(mb_type,list)){
191e8ca7 192 int8_t *ref = &s->current_picture.ref_index[list][h->mb2b8_xy[mb_xy]];
5d18eaad 193 *(uint32_t*)&h->ref_cache[list][scan8[ 0]] =
beca9a28 194 *(uint32_t*)&h->ref_cache[list][scan8[ 2]] = (pack16to32(ref[0],ref[1])&0x00FF00FF)*0x0101;
5d18eaad
LM
195 ref += h->b8_stride;
196 *(uint32_t*)&h->ref_cache[list][scan8[ 8]] =
beca9a28 197 *(uint32_t*)&h->ref_cache[list][scan8[10]] = (pack16to32(ref[0],ref[1])&0x00FF00FF)*0x0101;
5d18eaad
LM
198 }
199 }
200 }
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MN
201 }else{
202 topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
203 top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
204 topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
205 left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
206 left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
207 }
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208
209 if(IS_INTRA(mb_type)){
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DB
210 h->topleft_samples_available=
211 h->top_samples_available=
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212 h->left_samples_available= 0xFFFF;
213 h->topright_samples_available= 0xEEEA;
214
215 if(!IS_INTRA(top_type) && (top_type==0 || h->pps.constrained_intra_pred)){
216 h->topleft_samples_available= 0xB3FF;
217 h->top_samples_available= 0x33FF;
218 h->topright_samples_available= 0x26EA;
219 }
220 for(i=0; i<2; i++){
221 if(!IS_INTRA(left_type[i]) && (left_type[i]==0 || h->pps.constrained_intra_pred)){
222 h->topleft_samples_available&= 0xDF5F;
223 h->left_samples_available&= 0x5F5F;
224 }
225 }
115329f1 226
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227 if(!IS_INTRA(topleft_type) && (topleft_type==0 || h->pps.constrained_intra_pred))
228 h->topleft_samples_available&= 0x7FFF;
115329f1 229
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230 if(!IS_INTRA(topright_type) && (topright_type==0 || h->pps.constrained_intra_pred))
231 h->topright_samples_available&= 0xFBFF;
115329f1 232
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233 if(IS_INTRA4x4(mb_type)){
234 if(IS_INTRA4x4(top_type)){
235 h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4];
236 h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5];
237 h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6];
238 h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];
239 }else{
240 int pred;
6fbcaaa0 241 if(!top_type || (IS_INTER(top_type) && h->pps.constrained_intra_pred))
0da71265 242 pred= -1;
6fbcaaa0
LLL
243 else{
244 pred= 2;
0da71265
MN
245 }
246 h->intra4x4_pred_mode_cache[4+8*0]=
247 h->intra4x4_pred_mode_cache[5+8*0]=
248 h->intra4x4_pred_mode_cache[6+8*0]=
249 h->intra4x4_pred_mode_cache[7+8*0]= pred;
250 }
251 for(i=0; i<2; i++){
252 if(IS_INTRA4x4(left_type[i])){
253 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]];
254 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];
255 }else{
256 int pred;
6fbcaaa0 257 if(!left_type[i] || (IS_INTER(left_type[i]) && h->pps.constrained_intra_pred))
0da71265 258 pred= -1;
6fbcaaa0
LLL
259 else{
260 pred= 2;
0da71265
MN
261 }
262 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
263 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;
264 }
265 }
266 }
267 }
115329f1
DB
268
269
0da71265 270/*
115329f1
DB
2710 . T T. T T T T
2721 L . .L . . . .
2732 L . .L . . . .
2743 . T TL . . . .
2754 L . .L . . . .
2765 L . .. . . . .
0da71265 277*/
1412060e 278//FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)
0da71265 279 if(top_type){
6867a90b
LLL
280 h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][4];
281 h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][5];
282 h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][6];
53c05b1e 283 h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3];
115329f1 284
6867a90b 285 h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][9];
53c05b1e 286 h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8];
115329f1 287
6867a90b 288 h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][12];
53c05b1e 289 h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11];
115329f1 290
0da71265 291 }else{
115329f1 292 h->non_zero_count_cache[4+8*0]=
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MN
293 h->non_zero_count_cache[5+8*0]=
294 h->non_zero_count_cache[6+8*0]=
295 h->non_zero_count_cache[7+8*0]=
115329f1 296
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MN
297 h->non_zero_count_cache[1+8*0]=
298 h->non_zero_count_cache[2+8*0]=
115329f1 299
0da71265 300 h->non_zero_count_cache[1+8*3]=
3981c385 301 h->non_zero_count_cache[2+8*3]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
115329f1 302
0da71265 303 }
826de46e 304
6867a90b
LLL
305 for (i=0; i<2; i++) {
306 if(left_type[i]){
307 h->non_zero_count_cache[3+8*1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[0+2*i]];
308 h->non_zero_count_cache[3+8*2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[1+2*i]];
309 h->non_zero_count_cache[0+8*1 + 8*i]= h->non_zero_count[left_xy[i]][left_block[4+2*i]];
310 h->non_zero_count_cache[0+8*4 + 8*i]= h->non_zero_count[left_xy[i]][left_block[5+2*i]];
6867a90b 311 }else{
115329f1
DB
312 h->non_zero_count_cache[3+8*1 + 2*8*i]=
313 h->non_zero_count_cache[3+8*2 + 2*8*i]=
314 h->non_zero_count_cache[0+8*1 + 8*i]=
6867a90b 315 h->non_zero_count_cache[0+8*4 + 8*i]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
826de46e
LLL
316 }
317 }
318
319 if( h->pps.cabac ) {
320 // top_cbp
321 if(top_type) {
322 h->top_cbp = h->cbp_table[top_xy];
323 } else if(IS_INTRA(mb_type)) {
324 h->top_cbp = 0x1C0;
325 } else {
326 h->top_cbp = 0;
327 }
328 // left_cbp
329 if (left_type[0]) {
330 h->left_cbp = h->cbp_table[left_xy[0]] & 0x1f0;
331 } else if(IS_INTRA(mb_type)) {
332 h->left_cbp = 0x1C0;
333 } else {
334 h->left_cbp = 0;
335 }
336 if (left_type[0]) {
337 h->left_cbp |= ((h->cbp_table[left_xy[0]]>>((left_block[0]&(~1))+1))&0x1) << 1;
338 }
339 if (left_type[1]) {
340 h->left_cbp |= ((h->cbp_table[left_xy[1]]>>((left_block[2]&(~1))+1))&0x1) << 3;
6867a90b 341 }
0da71265 342 }
6867a90b 343
0da71265 344#if 1
e2e5894a 345 if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
0da71265 346 int list;
3425501d 347 for(list=0; list<h->list_count; list++){
e2e5894a 348 if(!USES_LIST(mb_type, list) && !IS_DIRECT(mb_type) && !h->deblocking_filter){
0da71265
MN
349 /*if(!h->mv_cache_clean[list]){
350 memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?
351 memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));
352 h->mv_cache_clean[list]= 1;
353 }*/
5ad984c9 354 continue;
0da71265
MN
355 }
356 h->mv_cache_clean[list]= 0;
115329f1 357
53b19144 358 if(USES_LIST(top_type, list)){
0da71265
MN
359 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
360 const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;
361 *(uint32_t*)h->mv_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 0];
362 *(uint32_t*)h->mv_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 1];
363 *(uint32_t*)h->mv_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 2];
364 *(uint32_t*)h->mv_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 3];
365 h->ref_cache[list][scan8[0] + 0 - 1*8]=
366 h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0];
367 h->ref_cache[list][scan8[0] + 2 - 1*8]=
368 h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1];
369 }else{
115329f1
DB
370 *(uint32_t*)h->mv_cache [list][scan8[0] + 0 - 1*8]=
371 *(uint32_t*)h->mv_cache [list][scan8[0] + 1 - 1*8]=
372 *(uint32_t*)h->mv_cache [list][scan8[0] + 2 - 1*8]=
0da71265
MN
373 *(uint32_t*)h->mv_cache [list][scan8[0] + 3 - 1*8]= 0;
374 *(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101;
375 }
376
4672503d
LM
377 for(i=0; i<2; i++){
378 int cache_idx = scan8[0] - 1 + i*2*8;
379 if(USES_LIST(left_type[i], list)){
380 const int b_xy= h->mb2b_xy[left_xy[i]] + 3;
381 const int b8_xy= h->mb2b8_xy[left_xy[i]] + 1;
382 *(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]];
383 *(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]];
384 h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0+i*2]>>1)];
385 h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[1+i*2]>>1)];
386 }else{
387 *(uint32_t*)h->mv_cache [list][cache_idx ]=
388 *(uint32_t*)h->mv_cache [list][cache_idx+8]= 0;
389 h->ref_cache[list][cache_idx ]=
390 h->ref_cache[list][cache_idx+8]= left_type[i] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
391 }
0da71265
MN
392 }
393
0281d325 394 if(for_deblock || ((IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred) && !FRAME_MBAFF))
46f2f05f
MN
395 continue;
396
53b19144 397 if(USES_LIST(topleft_type, list)){
02f7695b
LM
398 const int b_xy = h->mb2b_xy[topleft_xy] + 3 + h->b_stride + (topleft_partition & 2*h->b_stride);
399 const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + (topleft_partition & h->b8_stride);
e2e5894a
LM
400 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
401 h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];
402 }else{
403 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0;
404 h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
405 }
115329f1 406
53b19144 407 if(USES_LIST(topright_type, list)){
e2e5894a
LM
408 const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;
409 const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride;
410 *(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
411 h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy];
412 }else{
413 *(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0;
414 h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
415 }
e2e5894a 416
ae08a563 417 if((IS_SKIP(mb_type) || IS_DIRECT(mb_type)) && !FRAME_MBAFF)
717b1733 418 continue;
115329f1
DB
419
420 h->ref_cache[list][scan8[5 ]+1] =
421 h->ref_cache[list][scan8[7 ]+1] =
3b66c4c5 422 h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewhere else)
115329f1 423 h->ref_cache[list][scan8[4 ]] =
0da71265
MN
424 h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
425 *(uint32_t*)h->mv_cache [list][scan8[5 ]+1]=
426 *(uint32_t*)h->mv_cache [list][scan8[7 ]+1]=
3b66c4c5 427 *(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
0da71265
MN
428 *(uint32_t*)h->mv_cache [list][scan8[4 ]]=
429 *(uint32_t*)h->mv_cache [list][scan8[12]]= 0;
9e528114
LA
430
431 if( h->pps.cabac ) {
432 /* XXX beurk, Load mvd */
53b19144 433 if(USES_LIST(top_type, list)){
9e528114
LA
434 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
435 *(uint32_t*)h->mvd_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 0];
436 *(uint32_t*)h->mvd_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 1];
437 *(uint32_t*)h->mvd_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 2];
438 *(uint32_t*)h->mvd_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 3];
439 }else{
115329f1
DB
440 *(uint32_t*)h->mvd_cache [list][scan8[0] + 0 - 1*8]=
441 *(uint32_t*)h->mvd_cache [list][scan8[0] + 1 - 1*8]=
442 *(uint32_t*)h->mvd_cache [list][scan8[0] + 2 - 1*8]=
9e528114
LA
443 *(uint32_t*)h->mvd_cache [list][scan8[0] + 3 - 1*8]= 0;
444 }
53b19144 445 if(USES_LIST(left_type[0], list)){
9e528114
LA
446 const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
447 *(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]];
448 *(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]];
449 }else{
450 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 0*8]=
451 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 1*8]= 0;
452 }
53b19144 453 if(USES_LIST(left_type[1], list)){
9e528114
LA
454 const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
455 *(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]];
456 *(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]];
457 }else{
458 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 2*8]=
459 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 3*8]= 0;
460 }
461 *(uint32_t*)h->mvd_cache [list][scan8[5 ]+1]=
462 *(uint32_t*)h->mvd_cache [list][scan8[7 ]+1]=
3b66c4c5 463 *(uint32_t*)h->mvd_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
9e528114
LA
464 *(uint32_t*)h->mvd_cache [list][scan8[4 ]]=
465 *(uint32_t*)h->mvd_cache [list][scan8[12]]= 0;
5ad984c9 466
9f5c1037 467 if(h->slice_type_nos == FF_B_TYPE){
5ad984c9
LM
468 fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, 0, 1);
469
470 if(IS_DIRECT(top_type)){
471 *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0x01010101;
472 }else if(IS_8X8(top_type)){
473 int b8_xy = h->mb2b8_xy[top_xy] + h->b8_stride;
474 h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy];
475 h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 1];
476 }else{
477 *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0;
478 }
115329f1 479
5d18eaad
LM
480 if(IS_DIRECT(left_type[0]))
481 h->direct_cache[scan8[0] - 1 + 0*8]= 1;
482 else if(IS_8X8(left_type[0]))
483 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)];
484 else
485 h->direct_cache[scan8[0] - 1 + 0*8]= 0;
486
487 if(IS_DIRECT(left_type[1]))
5ad984c9 488 h->direct_cache[scan8[0] - 1 + 2*8]= 1;
5d18eaad
LM
489 else if(IS_8X8(left_type[1]))
490 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)];
491 else
5ad984c9 492 h->direct_cache[scan8[0] - 1 + 2*8]= 0;
5d18eaad
LM
493 }
494 }
495
496 if(FRAME_MBAFF){
497#define MAP_MVS\
498 MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\
499 MAP_F2F(scan8[0] + 0 - 1*8, top_type)\
500 MAP_F2F(scan8[0] + 1 - 1*8, top_type)\
501 MAP_F2F(scan8[0] + 2 - 1*8, top_type)\
502 MAP_F2F(scan8[0] + 3 - 1*8, top_type)\
503 MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\
504 MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\
505 MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\
506 MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\
507 MAP_F2F(scan8[0] - 1 + 3*8, left_type[1])
508 if(MB_FIELD){
509#define MAP_F2F(idx, mb_type)\
510 if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
511 h->ref_cache[list][idx] <<= 1;\
512 h->mv_cache[list][idx][1] /= 2;\
513 h->mvd_cache[list][idx][1] /= 2;\
514 }
515 MAP_MVS
516#undef MAP_F2F
517 }else{
518#define MAP_F2F(idx, mb_type)\
519 if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
520 h->ref_cache[list][idx] >>= 1;\
521 h->mv_cache[list][idx][1] <<= 1;\
522 h->mvd_cache[list][idx][1] <<= 1;\
5ad984c9 523 }
5d18eaad
LM
524 MAP_MVS
525#undef MAP_F2F
5ad984c9 526 }
9e528114 527 }
0da71265 528 }
0da71265
MN
529 }
530#endif
43efd19a
LM
531
532 h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]);
0da71265
MN
533}
534
535static inline void write_back_intra_pred_mode(H264Context *h){
64514ee8 536 const int mb_xy= h->mb_xy;
0da71265
MN
537
538 h->intra4x4_pred_mode[mb_xy][0]= h->intra4x4_pred_mode_cache[7+8*1];
539 h->intra4x4_pred_mode[mb_xy][1]= h->intra4x4_pred_mode_cache[7+8*2];
540 h->intra4x4_pred_mode[mb_xy][2]= h->intra4x4_pred_mode_cache[7+8*3];
541 h->intra4x4_pred_mode[mb_xy][3]= h->intra4x4_pred_mode_cache[7+8*4];
542 h->intra4x4_pred_mode[mb_xy][4]= h->intra4x4_pred_mode_cache[4+8*4];
543 h->intra4x4_pred_mode[mb_xy][5]= h->intra4x4_pred_mode_cache[5+8*4];
544 h->intra4x4_pred_mode[mb_xy][6]= h->intra4x4_pred_mode_cache[6+8*4];
545}
546
547/**
548 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
549 */
550static inline int check_intra4x4_pred_mode(H264Context *h){
551 MpegEncContext * const s = &h->s;
552 static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0};
553 static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED};
554 int i;
115329f1 555
0da71265
MN
556 if(!(h->top_samples_available&0x8000)){
557 for(i=0; i<4; i++){
558 int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ];
559 if(status<0){
9b879566 560 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
561 return -1;
562 } else if(status){
563 h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
564 }
565 }
566 }
115329f1 567
0da71265
MN
568 if(!(h->left_samples_available&0x8000)){
569 for(i=0; i<4; i++){
570 int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ];
571 if(status<0){
9b879566 572 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
573 return -1;
574 } else if(status){
575 h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status;
576 }
577 }
578 }
579
580 return 0;
581} //FIXME cleanup like next
582
583/**
584 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
585 */
586static inline int check_intra_pred_mode(H264Context *h, int mode){
587 MpegEncContext * const s = &h->s;
588 static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
589 static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
115329f1 590
43ff0714 591 if(mode > 6U) {
5175b937 592 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 593 return -1;
5175b937 594 }
115329f1 595
0da71265
MN
596 if(!(h->top_samples_available&0x8000)){
597 mode= top[ mode ];
598 if(mode<0){
9b879566 599 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
600 return -1;
601 }
602 }
115329f1 603
0da71265
MN
604 if(!(h->left_samples_available&0x8000)){
605 mode= left[ mode ];
606 if(mode<0){
9b879566 607 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 608 return -1;
115329f1 609 }
0da71265
MN
610 }
611
612 return mode;
613}
614
615/**
616 * gets the predicted intra4x4 prediction mode.
617 */
618static inline int pred_intra_mode(H264Context *h, int n){
619 const int index8= scan8[n];
620 const int left= h->intra4x4_pred_mode_cache[index8 - 1];
621 const int top = h->intra4x4_pred_mode_cache[index8 - 8];
622 const int min= FFMIN(left, top);
623
a9c9a240 624 tprintf(h->s.avctx, "mode:%d %d min:%d\n", left ,top, min);
0da71265
MN
625
626 if(min<0) return DC_PRED;
627 else return min;
628}
629
630static inline void write_back_non_zero_count(H264Context *h){
64514ee8 631 const int mb_xy= h->mb_xy;
0da71265 632
6867a90b
LLL
633 h->non_zero_count[mb_xy][0]= h->non_zero_count_cache[7+8*1];
634 h->non_zero_count[mb_xy][1]= h->non_zero_count_cache[7+8*2];
635 h->non_zero_count[mb_xy][2]= h->non_zero_count_cache[7+8*3];
53c05b1e 636 h->non_zero_count[mb_xy][3]= h->non_zero_count_cache[7+8*4];
6867a90b
LLL
637 h->non_zero_count[mb_xy][4]= h->non_zero_count_cache[4+8*4];
638 h->non_zero_count[mb_xy][5]= h->non_zero_count_cache[5+8*4];
639 h->non_zero_count[mb_xy][6]= h->non_zero_count_cache[6+8*4];
115329f1 640
6867a90b 641 h->non_zero_count[mb_xy][9]= h->non_zero_count_cache[1+8*2];
53c05b1e 642 h->non_zero_count[mb_xy][8]= h->non_zero_count_cache[2+8*2];
6867a90b 643 h->non_zero_count[mb_xy][7]= h->non_zero_count_cache[2+8*1];
53c05b1e 644
6867a90b 645 h->non_zero_count[mb_xy][12]=h->non_zero_count_cache[1+8*5];
53c05b1e 646 h->non_zero_count[mb_xy][11]=h->non_zero_count_cache[2+8*5];
6867a90b 647 h->non_zero_count[mb_xy][10]=h->non_zero_count_cache[2+8*4];
0da71265
MN
648}
649
650/**
1412060e 651 * gets the predicted number of non-zero coefficients.
0da71265
MN
652 * @param n block index
653 */
654static inline int pred_non_zero_count(H264Context *h, int n){
655 const int index8= scan8[n];
656 const int left= h->non_zero_count_cache[index8 - 1];
657 const int top = h->non_zero_count_cache[index8 - 8];
658 int i= left + top;
115329f1 659
0da71265
MN
660 if(i<64) i= (i+1)>>1;
661
a9c9a240 662 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
663
664 return i&31;
665}
666
1924f3ce
MN
667static inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, int list, int part_width){
668 const int topright_ref= h->ref_cache[list][ i - 8 + part_width ];
a9c9a240 669 MpegEncContext *s = &h->s;
1924f3ce 670
5d18eaad
LM
671 /* there is no consistent mapping of mvs to neighboring locations that will
672 * make mbaff happy, so we can't move all this logic to fill_caches */
673 if(FRAME_MBAFF){
191e8ca7 674 const uint32_t *mb_types = s->current_picture_ptr->mb_type;
5d18eaad
LM
675 const int16_t *mv;
676 *(uint32_t*)h->mv_cache[list][scan8[0]-2] = 0;
677 *C = h->mv_cache[list][scan8[0]-2];
678
679 if(!MB_FIELD
680 && (s->mb_y&1) && i < scan8[0]+8 && topright_ref != PART_NOT_AVAILABLE){
681 int topright_xy = s->mb_x + (s->mb_y-1)*s->mb_stride + (i == scan8[0]+3);
682 if(IS_INTERLACED(mb_types[topright_xy])){
683#define SET_DIAG_MV(MV_OP, REF_OP, X4, Y4)\
684 const int x4 = X4, y4 = Y4;\
685 const int mb_type = mb_types[(x4>>2)+(y4>>2)*s->mb_stride];\
02f7695b 686 if(!USES_LIST(mb_type,list))\
5d18eaad
LM
687 return LIST_NOT_USED;\
688 mv = s->current_picture_ptr->motion_val[list][x4 + y4*h->b_stride];\
689 h->mv_cache[list][scan8[0]-2][0] = mv[0];\
690 h->mv_cache[list][scan8[0]-2][1] = mv[1] MV_OP;\
691 return s->current_picture_ptr->ref_index[list][(x4>>1) + (y4>>1)*h->b8_stride] REF_OP;
692
693 SET_DIAG_MV(*2, >>1, s->mb_x*4+(i&7)-4+part_width, s->mb_y*4-1);
694 }
695 }
696 if(topright_ref == PART_NOT_AVAILABLE
697 && ((s->mb_y&1) || i >= scan8[0]+8) && (i&7)==4
698 && h->ref_cache[list][scan8[0]-1] != PART_NOT_AVAILABLE){
699 if(!MB_FIELD
700 && IS_INTERLACED(mb_types[h->left_mb_xy[0]])){
701 SET_DIAG_MV(*2, >>1, s->mb_x*4-1, (s->mb_y|1)*4+(s->mb_y&1)*2+(i>>4)-1);
702 }
703 if(MB_FIELD
704 && !IS_INTERLACED(mb_types[h->left_mb_xy[0]])
705 && i >= scan8[0]+8){
1412060e 706 // left shift will turn LIST_NOT_USED into PART_NOT_AVAILABLE, but that's OK.
02f7695b 707 SET_DIAG_MV(/2, <<1, s->mb_x*4-1, (s->mb_y&~1)*4 - 1 + ((i-scan8[0])>>3)*2);
5d18eaad
LM
708 }
709 }
710#undef SET_DIAG_MV
711 }
712
1924f3ce
MN
713 if(topright_ref != PART_NOT_AVAILABLE){
714 *C= h->mv_cache[list][ i - 8 + part_width ];
715 return topright_ref;
716 }else{
a9c9a240 717 tprintf(s->avctx, "topright MV not available\n");
95c26348 718
1924f3ce
MN
719 *C= h->mv_cache[list][ i - 8 - 1 ];
720 return h->ref_cache[list][ i - 8 - 1 ];
721 }
722}
723
0da71265
MN
724/**
725 * gets the predicted MV.
726 * @param n the block index
727 * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4)
728 * @param mx the x component of the predicted motion vector
729 * @param my the y component of the predicted motion vector
730 */
731static inline void pred_motion(H264Context * const h, int n, int part_width, int list, int ref, int * const mx, int * const my){
0da71265
MN
732 const int index8= scan8[n];
733 const int top_ref= h->ref_cache[list][ index8 - 8 ];
0da71265
MN
734 const int left_ref= h->ref_cache[list][ index8 - 1 ];
735 const int16_t * const A= h->mv_cache[list][ index8 - 1 ];
736 const int16_t * const B= h->mv_cache[list][ index8 - 8 ];
1924f3ce
MN
737 const int16_t * C;
738 int diagonal_ref, match_count;
739
0da71265 740 assert(part_width==1 || part_width==2 || part_width==4);
1924f3ce 741
0da71265 742/* mv_cache
115329f1 743 B . . A T T T T
0da71265
MN
744 U . . L . . , .
745 U . . L . . . .
746 U . . L . . , .
747 . . . L . . . .
748*/
1924f3ce
MN
749
750 diagonal_ref= fetch_diagonal_mv(h, &C, index8, list, part_width);
751 match_count= (diagonal_ref==ref) + (top_ref==ref) + (left_ref==ref);
a9c9a240 752 tprintf(h->s.avctx, "pred_motion match_count=%d\n", match_count);
1924f3ce
MN
753 if(match_count > 1){ //most common
754 *mx= mid_pred(A[0], B[0], C[0]);
755 *my= mid_pred(A[1], B[1], C[1]);
756 }else if(match_count==1){
757 if(left_ref==ref){
758 *mx= A[0];
115329f1 759 *my= A[1];
1924f3ce
MN
760 }else if(top_ref==ref){
761 *mx= B[0];
115329f1 762 *my= B[1];
0da71265 763 }else{
1924f3ce 764 *mx= C[0];
115329f1 765 *my= C[1];
0da71265
MN
766 }
767 }else{
1924f3ce 768 if(top_ref == PART_NOT_AVAILABLE && diagonal_ref == PART_NOT_AVAILABLE && left_ref != PART_NOT_AVAILABLE){
0da71265 769 *mx= A[0];
115329f1 770 *my= A[1];
0da71265 771 }else{
1924f3ce
MN
772 *mx= mid_pred(A[0], B[0], C[0]);
773 *my= mid_pred(A[1], B[1], C[1]);
0da71265 774 }
0da71265 775 }
115329f1 776
a9c9a240 777 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
778}
779
780/**
781 * gets the directionally predicted 16x8 MV.
782 * @param n the block index
783 * @param mx the x component of the predicted motion vector
784 * @param my the y component of the predicted motion vector
785 */
786static inline void pred_16x8_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
0da71265
MN
787 if(n==0){
788 const int top_ref= h->ref_cache[list][ scan8[0] - 8 ];
789 const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ];
790
a9c9a240 791 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 792
0da71265
MN
793 if(top_ref == ref){
794 *mx= B[0];
795 *my= B[1];
796 return;
797 }
798 }else{
799 const int left_ref= h->ref_cache[list][ scan8[8] - 1 ];
800 const int16_t * const A= h->mv_cache[list][ scan8[8] - 1 ];
115329f1 801
a9c9a240 802 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
803
804 if(left_ref == ref){
805 *mx= A[0];
806 *my= A[1];
807 return;
808 }
809 }
810
811 //RARE
812 pred_motion(h, n, 4, list, ref, mx, my);
813}
814
815/**
816 * gets the directionally predicted 8x16 MV.
817 * @param n the block index
818 * @param mx the x component of the predicted motion vector
819 * @param my the y component of the predicted motion vector
820 */
821static inline void pred_8x16_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
0da71265
MN
822 if(n==0){
823 const int left_ref= h->ref_cache[list][ scan8[0] - 1 ];
824 const int16_t * const A= h->mv_cache[list][ scan8[0] - 1 ];
115329f1 825
a9c9a240 826 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
827
828 if(left_ref == ref){
829 *mx= A[0];
830 *my= A[1];
831 return;
832 }
833 }else{
1924f3ce
MN
834 const int16_t * C;
835 int diagonal_ref;
836
837 diagonal_ref= fetch_diagonal_mv(h, &C, scan8[4], list, 2);
115329f1 838
a9c9a240 839 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 840
115329f1 841 if(diagonal_ref == ref){
0da71265
MN
842 *mx= C[0];
843 *my= C[1];
844 return;
845 }
0da71265
MN
846 }
847
848 //RARE
849 pred_motion(h, n, 2, list, ref, mx, my);
850}
851
852static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my){
0da71265
MN
853 const int top_ref = h->ref_cache[0][ scan8[0] - 8 ];
854 const int left_ref= h->ref_cache[0][ scan8[0] - 1 ];
855
a9c9a240 856 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
857
858 if(top_ref == PART_NOT_AVAILABLE || left_ref == PART_NOT_AVAILABLE
859 || (top_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 8 ] == 0)
860 || (left_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 1 ] == 0)){
115329f1 861
0da71265
MN
862 *mx = *my = 0;
863 return;
864 }
115329f1 865
0da71265
MN
866 pred_motion(h, 0, 4, 0, 0, mx, my);
867
868 return;
869}
870
5ad984c9 871static inline void direct_dist_scale_factor(H264Context * const h){
2879c75f
MN
872 MpegEncContext * const s = &h->s;
873 const int poc = h->s.current_picture_ptr->field_poc[ s->picture_structure == PICT_BOTTOM_FIELD ];
5ad984c9
LM
874 const int poc1 = h->ref_list[1][0].poc;
875 int i;
876 for(i=0; i<h->ref_count[0]; i++){
877 int poc0 = h->ref_list[0][i].poc;
f66e4f5f 878 int td = av_clip(poc1 - poc0, -128, 127);
4c0d57bd 879 if(td == 0 || h->ref_list[0][i].long_ref){
5ad984c9
LM
880 h->dist_scale_factor[i] = 256;
881 }else{
f66e4f5f 882 int tb = av_clip(poc - poc0, -128, 127);
c26abfa5 883 int tx = (16384 + (FFABS(td) >> 1)) / td;
f66e4f5f 884 h->dist_scale_factor[i] = av_clip((tb*tx + 32) >> 6, -1024, 1023);
5ad984c9
LM
885 }
886 }
5d18eaad
LM
887 if(FRAME_MBAFF){
888 for(i=0; i<h->ref_count[0]; i++){
889 h->dist_scale_factor_field[2*i] =
890 h->dist_scale_factor_field[2*i+1] = h->dist_scale_factor[i];
891 }
892 }
5ad984c9 893}
2f944356
LM
894static inline void direct_ref_list_init(H264Context * const h){
895 MpegEncContext * const s = &h->s;
896 Picture * const ref1 = &h->ref_list[1][0];
897 Picture * const cur = s->current_picture_ptr;
898 int list, i, j;
2879c75f 899 int sidx= s->picture_structure&1;
45260d4f 900 int ref1sidx= ref1->reference&1;
2f944356 901 for(list=0; list<2; list++){
2879c75f 902 cur->ref_count[sidx][list] = h->ref_count[list];
2f944356 903 for(j=0; j<h->ref_count[list]; j++)
42de393d 904 cur->ref_poc[sidx][list][j] = 4*h->ref_list[list][j].frame_num + (h->ref_list[list][j].reference&3);
2f944356 905 }
7762cc3d
MN
906 if(s->picture_structure == PICT_FRAME){
907 memcpy(cur->ref_count[0], cur->ref_count[1], sizeof(cur->ref_count[0]));
908 memcpy(cur->ref_poc [0], cur->ref_poc [1], sizeof(cur->ref_poc [0]));
909 }
9701840b 910 if(cur->pict_type != FF_B_TYPE || h->direct_spatial_mv_pred)
2f944356
LM
911 return;
912 for(list=0; list<2; list++){
45260d4f 913 for(i=0; i<ref1->ref_count[ref1sidx][list]; i++){
42de393d
MN
914 int poc = ref1->ref_poc[ref1sidx][list][i];
915 if(((poc&3) == 3) != (s->picture_structure == PICT_FRAME))
916 poc= (poc&~3) + s->picture_structure;
171c4076 917 h->map_col_to_list0[list][i] = 0; /* bogus; fills in for missing frames */
2f944356 918 for(j=0; j<h->ref_count[list]; j++)
42de393d 919 if(4*h->ref_list[list][j].frame_num + (h->ref_list[list][j].reference&3) == poc){
2f944356
LM
920 h->map_col_to_list0[list][i] = j;
921 break;
922 }
923 }
924 }
5d18eaad
LM
925 if(FRAME_MBAFF){
926 for(list=0; list<2; list++){
45260d4f 927 for(i=0; i<ref1->ref_count[ref1sidx][list]; i++){
5d18eaad
LM
928 j = h->map_col_to_list0[list][i];
929 h->map_col_to_list0_field[list][2*i] = 2*j;
930 h->map_col_to_list0_field[list][2*i+1] = 2*j+1;
931 }
932 }
933 }
2f944356 934}
5ad984c9
LM
935
936static inline void pred_direct_motion(H264Context * const h, int *mb_type){
937 MpegEncContext * const s = &h->s;
d00eac6c
MN
938 int b8_stride = h->b8_stride;
939 int b4_stride = h->b_stride;
940 int mb_xy = h->mb_xy;
941 int mb_type_col[2];
942 const int16_t (*l1mv0)[2], (*l1mv1)[2];
943 const int8_t *l1ref0, *l1ref1;
5ad984c9 944 const int is_b8x8 = IS_8X8(*mb_type);
88e7a4d1 945 unsigned int sub_mb_type;
5ad984c9
LM
946 int i8, i4;
947
5d18eaad 948#define MB_TYPE_16x16_OR_INTRA (MB_TYPE_16x16|MB_TYPE_INTRA4x4|MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM)
d00eac6c
MN
949
950 if(IS_INTERLACED(h->ref_list[1][0].mb_type[mb_xy])){ // AFL/AFR/FR/FL -> AFL/FL
951 if(h->ref_list[1][0].reference == PICT_FRAME){ // AFL/AFR/FR/FL -> AFL
952 if(!IS_INTERLACED(*mb_type)){ // AFR/FR -> AFL
953 int cur_poc = s->current_picture_ptr->poc;
954 int *col_poc = h->ref_list[1]->field_poc;
955 int col_parity = FFABS(col_poc[0] - cur_poc) >= FFABS(col_poc[1] - cur_poc);
956 mb_xy= s->mb_x + ((s->mb_y&~1) + col_parity)*s->mb_stride;
d00eac6c
MN
957 b8_stride = 0;
958 }
959 }else if(!(s->picture_structure & h->ref_list[1][0].reference)){// FL -> FL & differ parity
960 int fieldoff= 2*(h->ref_list[1][0].reference)-3;
961 mb_xy += s->mb_stride*fieldoff;
962 }
963 goto single_col;
964 }else{ // AFL/AFR/FR/FL -> AFR/FR
965 if(IS_INTERLACED(*mb_type)){ // AFL /FL -> AFR/FR
966 mb_xy= s->mb_x + (s->mb_y&~1)*s->mb_stride;
967 mb_type_col[0] = h->ref_list[1][0].mb_type[mb_xy];
968 mb_type_col[1] = h->ref_list[1][0].mb_type[mb_xy + s->mb_stride];
969 b8_stride *= 3;
970 b4_stride *= 6;
971 //FIXME IS_8X8(mb_type_col[0]) && !h->sps.direct_8x8_inference_flag
972 if( (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)
973 && (mb_type_col[1] & MB_TYPE_16x16_OR_INTRA)
974 && !is_b8x8){
975 sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
976 *mb_type |= MB_TYPE_16x8 |MB_TYPE_L0L1|MB_TYPE_DIRECT2; /* B_16x8 */
977 }else{
978 sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
979 *mb_type |= MB_TYPE_8x8|MB_TYPE_L0L1;
980 }
981 }else{ // AFR/FR -> AFR/FR
982single_col:
983 mb_type_col[0] =
984 mb_type_col[1] = h->ref_list[1][0].mb_type[mb_xy];
cc615d2c
MN
985 if(IS_8X8(mb_type_col[0]) && !h->sps.direct_8x8_inference_flag){
986 /* FIXME save sub mb types from previous frames (or derive from MVs)
987 * so we know exactly what block size to use */
988 sub_mb_type = MB_TYPE_8x8|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_4x4 */
989 *mb_type |= MB_TYPE_8x8|MB_TYPE_L0L1;
990 }else if(!is_b8x8 && (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)){
991 sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
992 *mb_type |= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_16x16 */
993 }else{
994 sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
995 *mb_type |= MB_TYPE_8x8|MB_TYPE_L0L1;
996 }
d00eac6c 997 }
5ad984c9 998 }
5ad984c9 999
7d54ecc9
MN
1000 l1mv0 = &h->ref_list[1][0].motion_val[0][h->mb2b_xy [mb_xy]];
1001 l1mv1 = &h->ref_list[1][0].motion_val[1][h->mb2b_xy [mb_xy]];
1002 l1ref0 = &h->ref_list[1][0].ref_index [0][h->mb2b8_xy[mb_xy]];
1003 l1ref1 = &h->ref_list[1][0].ref_index [1][h->mb2b8_xy[mb_xy]];
9b5fab91
MN
1004 if(!b8_stride){
1005 if(s->mb_y&1){
1006 l1ref0 += h->b8_stride;
1007 l1ref1 += h->b8_stride;
1008 l1mv0 += 2*b4_stride;
1009 l1mv1 += 2*b4_stride;
1010 }
d00eac6c 1011 }
115329f1 1012
5ad984c9
LM
1013 if(h->direct_spatial_mv_pred){
1014 int ref[2];
1015 int mv[2][2];
1016 int list;
1017
5d18eaad
LM
1018 /* FIXME interlacing + spatial direct uses wrong colocated block positions */
1019
5ad984c9
LM
1020 /* ref = min(neighbors) */
1021 for(list=0; list<2; list++){
1022 int refa = h->ref_cache[list][scan8[0] - 1];
1023 int refb = h->ref_cache[list][scan8[0] - 8];
1024 int refc = h->ref_cache[list][scan8[0] - 8 + 4];
9bec77fe 1025 if(refc == PART_NOT_AVAILABLE)
5ad984c9 1026 refc = h->ref_cache[list][scan8[0] - 8 - 1];
29d05ebc 1027 ref[list] = FFMIN3((unsigned)refa, (unsigned)refb, (unsigned)refc);
5ad984c9
LM
1028 if(ref[list] < 0)
1029 ref[list] = -1;
1030 }
1031
1032 if(ref[0] < 0 && ref[1] < 0){
1033 ref[0] = ref[1] = 0;
1034 mv[0][0] = mv[0][1] =
1035 mv[1][0] = mv[1][1] = 0;
1036 }else{
1037 for(list=0; list<2; list++){
1038 if(ref[list] >= 0)
1039 pred_motion(h, 0, 4, list, ref[list], &mv[list][0], &mv[list][1]);
1040 else
1041 mv[list][0] = mv[list][1] = 0;
1042 }
1043 }
1044
1045 if(ref[1] < 0){
50b3ab0f
LM
1046 if(!is_b8x8)
1047 *mb_type &= ~MB_TYPE_L1;
1048 sub_mb_type &= ~MB_TYPE_L1;
5ad984c9 1049 }else if(ref[0] < 0){
50b3ab0f
LM
1050 if(!is_b8x8)
1051 *mb_type &= ~MB_TYPE_L0;
1052 sub_mb_type &= ~MB_TYPE_L0;
5ad984c9
LM
1053 }
1054
d00eac6c 1055 if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])){
50b3ab0f
LM
1056 for(i8=0; i8<4; i8++){
1057 int x8 = i8&1;
1058 int y8 = i8>>1;
1059 int xy8 = x8+y8*b8_stride;
1060 int xy4 = 3*x8+y8*b4_stride;
1061 int a=0, b=0;
1062
1063 if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
1064 continue;
1065 h->sub_mb_type[i8] = sub_mb_type;
1066
1067 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);
1068 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);
d00eac6c 1069 if(!IS_INTRA(mb_type_col[y8])
50b3ab0f
LM
1070 && ( (l1ref0[xy8] == 0 && FFABS(l1mv0[xy4][0]) <= 1 && FFABS(l1mv0[xy4][1]) <= 1)
1071 || (l1ref0[xy8] < 0 && l1ref1[xy8] == 0 && FFABS(l1mv1[xy4][0]) <= 1 && FFABS(l1mv1[xy4][1]) <= 1))){
1072 if(ref[0] > 0)
1073 a= pack16to32(mv[0][0],mv[0][1]);
1074 if(ref[1] > 0)
1075 b= pack16to32(mv[1][0],mv[1][1]);
1076 }else{
1077 a= pack16to32(mv[0][0],mv[0][1]);
1078 b= pack16to32(mv[1][0],mv[1][1]);
1079 }
1080 fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, a, 4);
1081 fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, b, 4);
1082 }
1083 }else if(IS_16X16(*mb_type)){
d19f5acb
MN
1084 int a=0, b=0;
1085
cec93959
LM
1086 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
1087 fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
d00eac6c 1088 if(!IS_INTRA(mb_type_col[0])
c26abfa5
DB
1089 && ( (l1ref0[0] == 0 && FFABS(l1mv0[0][0]) <= 1 && FFABS(l1mv0[0][1]) <= 1)
1090 || (l1ref0[0] < 0 && l1ref1[0] == 0 && FFABS(l1mv1[0][0]) <= 1 && FFABS(l1mv1[0][1]) <= 1
bf4e3bd2 1091 && (h->x264_build>33 || !h->x264_build)))){
5ad984c9 1092 if(ref[0] > 0)
d19f5acb 1093 a= pack16to32(mv[0][0],mv[0][1]);
5ad984c9 1094 if(ref[1] > 0)
d19f5acb 1095 b= pack16to32(mv[1][0],mv[1][1]);
5ad984c9 1096 }else{
d19f5acb
MN
1097 a= pack16to32(mv[0][0],mv[0][1]);
1098 b= pack16to32(mv[1][0],mv[1][1]);
5ad984c9 1099 }
d19f5acb
MN
1100 fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, a, 4);
1101 fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, b, 4);
5ad984c9
LM
1102 }else{
1103 for(i8=0; i8<4; i8++){
1104 const int x8 = i8&1;
1105 const int y8 = i8>>1;
115329f1 1106
5ad984c9
LM
1107 if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
1108 continue;
1109 h->sub_mb_type[i8] = sub_mb_type;
115329f1 1110
5ad984c9
LM
1111 fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mv[0][0],mv[0][1]), 4);
1112 fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mv[1][0],mv[1][1]), 4);
cec93959
LM
1113 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);
1114 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);
115329f1 1115
5ad984c9 1116 /* col_zero_flag */
2ccd25d0
MN
1117 if(!IS_INTRA(mb_type_col[0]) && ( l1ref0[x8 + y8*b8_stride] == 0
1118 || (l1ref0[x8 + y8*b8_stride] < 0 && l1ref1[x8 + y8*b8_stride] == 0
bf4e3bd2 1119 && (h->x264_build>33 || !h->x264_build)))){
2ccd25d0 1120 const int16_t (*l1mv)[2]= l1ref0[x8 + y8*b8_stride] == 0 ? l1mv0 : l1mv1;
f1f17e54 1121 if(IS_SUB_8X8(sub_mb_type)){
2ccd25d0 1122 const int16_t *mv_col = l1mv[x8*3 + y8*3*b4_stride];
c26abfa5 1123 if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){
f1f17e54
LM
1124 if(ref[0] == 0)
1125 fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
1126 if(ref[1] == 0)
1127 fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
1128 }
1129 }else
5ad984c9 1130 for(i4=0; i4<4; i4++){
2ccd25d0 1131 const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*b4_stride];
c26abfa5 1132 if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){
5ad984c9
LM
1133 if(ref[0] == 0)
1134 *(uint32_t*)h->mv_cache[0][scan8[i8*4+i4]] = 0;
1135 if(ref[1] == 0)
1136 *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] = 0;
1137 }
1138 }
1139 }
1140 }
1141 }
1142 }else{ /* direct temporal mv pred */
5d18eaad
LM
1143 const int *map_col_to_list0[2] = {h->map_col_to_list0[0], h->map_col_to_list0[1]};
1144 const int *dist_scale_factor = h->dist_scale_factor;
1145
cc615d2c
MN
1146 if(FRAME_MBAFF && IS_INTERLACED(*mb_type)){
1147 map_col_to_list0[0] = h->map_col_to_list0_field[0];
1148 map_col_to_list0[1] = h->map_col_to_list0_field[1];
1149 dist_scale_factor = h->dist_scale_factor_field;
1150 }
1151 if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])){
1152 /* FIXME assumes direct_8x8_inference == 1 */
c210fa61
MN
1153 int y_shift = 2*!IS_INTERLACED(*mb_type);
1154 int ref_shift= FRAME_MBAFF ? y_shift : 1;
5d18eaad 1155
cc615d2c
MN
1156 for(i8=0; i8<4; i8++){
1157 const int x8 = i8&1;
1158 const int y8 = i8>>1;
1159 int ref0, scale;
1160 const int16_t (*l1mv)[2]= l1mv0;
5d18eaad 1161
cc615d2c
MN
1162 if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
1163 continue;
1164 h->sub_mb_type[i8] = sub_mb_type;
1165
1166 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
1167 if(IS_INTRA(mb_type_col[y8])){
1168 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
1169 fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
1170 fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
1171 continue;
1172 }
1173
1174 ref0 = l1ref0[x8 + y8*b8_stride];
1175 if(ref0 >= 0)
1176 ref0 = map_col_to_list0[0][ref0*2>>ref_shift];
1177 else{
1178 ref0 = map_col_to_list0[1][l1ref1[x8 + y8*b8_stride]*2>>ref_shift];
1179 l1mv= l1mv1;
1180 }
1181 scale = dist_scale_factor[ref0];
1182 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
1183
1184 {
1185 const int16_t *mv_col = l1mv[x8*3 + y8*b4_stride];
1186 int my_col = (mv_col[1]<<y_shift)/2;
1187 int mx = (scale * mv_col[0] + 128) >> 8;
1188 int my = (scale * my_col + 128) >> 8;
1189 fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);
1190 fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-my_col), 4);
5d18eaad 1191 }
5d18eaad 1192 }
cc615d2c
MN
1193 return;
1194 }
5d18eaad
LM
1195
1196 /* one-to-one mv scaling */
1197
5ad984c9 1198 if(IS_16X16(*mb_type)){
fda51641
MN
1199 int ref, mv0, mv1;
1200
5ad984c9 1201 fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, 0, 1);
d00eac6c 1202 if(IS_INTRA(mb_type_col[0])){
fda51641 1203 ref=mv0=mv1=0;
5ad984c9 1204 }else{
5d18eaad
LM
1205 const int ref0 = l1ref0[0] >= 0 ? map_col_to_list0[0][l1ref0[0]]
1206 : map_col_to_list0[1][l1ref1[0]];
1207 const int scale = dist_scale_factor[ref0];
8583bef8 1208 const int16_t *mv_col = l1ref0[0] >= 0 ? l1mv0[0] : l1mv1[0];
5ad984c9 1209 int mv_l0[2];
5d18eaad
LM
1210 mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
1211 mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
fda51641
MN
1212 ref= ref0;
1213 mv0= pack16to32(mv_l0[0],mv_l0[1]);
1214 mv1= pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);
5ad984c9 1215 }
fda51641
MN
1216 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
1217 fill_rectangle(&h-> mv_cache[0][scan8[0]], 4, 4, 8, mv0, 4);
1218 fill_rectangle(&h-> mv_cache[1][scan8[0]], 4, 4, 8, mv1, 4);
5ad984c9
LM
1219 }else{
1220 for(i8=0; i8<4; i8++){
1221 const int x8 = i8&1;
1222 const int y8 = i8>>1;
5d18eaad 1223 int ref0, scale;
bf4e3bd2 1224 const int16_t (*l1mv)[2]= l1mv0;
8583bef8 1225
5ad984c9
LM
1226 if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
1227 continue;
1228 h->sub_mb_type[i8] = sub_mb_type;
5d18eaad 1229 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
d00eac6c 1230 if(IS_INTRA(mb_type_col[0])){
5ad984c9 1231 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
5ad984c9
LM
1232 fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
1233 fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
1234 continue;
1235 }
115329f1 1236
2ccd25d0 1237 ref0 = l1ref0[x8 + y8*b8_stride];
2f944356 1238 if(ref0 >= 0)
5d18eaad 1239 ref0 = map_col_to_list0[0][ref0];
8583bef8 1240 else{
2ccd25d0 1241 ref0 = map_col_to_list0[1][l1ref1[x8 + y8*b8_stride]];
8583bef8
MN
1242 l1mv= l1mv1;
1243 }
5d18eaad 1244 scale = dist_scale_factor[ref0];
115329f1 1245
5ad984c9 1246 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
f1f17e54 1247 if(IS_SUB_8X8(sub_mb_type)){
2ccd25d0 1248 const int16_t *mv_col = l1mv[x8*3 + y8*3*b4_stride];
5d18eaad
LM
1249 int mx = (scale * mv_col[0] + 128) >> 8;
1250 int my = (scale * mv_col[1] + 128) >> 8;
f1f17e54
LM
1251 fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);
1252 fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-mv_col[1]), 4);
1253 }else
5ad984c9 1254 for(i4=0; i4<4; i4++){
2ccd25d0 1255 const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*b4_stride];
5ad984c9 1256 int16_t *mv_l0 = h->mv_cache[0][scan8[i8*4+i4]];
5d18eaad
LM
1257 mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
1258 mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
5ad984c9
LM
1259 *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] =
1260 pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);
1261 }
1262 }
1263 }
1264 }
1265}
1266
0da71265
MN
1267static inline void write_back_motion(H264Context *h, int mb_type){
1268 MpegEncContext * const s = &h->s;
0da71265
MN
1269 const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
1270 const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride;
1271 int list;
1272
2ea39252
LM
1273 if(!USES_LIST(mb_type, 0))
1274 fill_rectangle(&s->current_picture.ref_index[0][b8_xy], 2, 2, h->b8_stride, (uint8_t)LIST_NOT_USED, 1);
1275
3425501d 1276 for(list=0; list<h->list_count; list++){
0da71265 1277 int y;
53b19144 1278 if(!USES_LIST(mb_type, list))
5ad984c9 1279 continue;
115329f1 1280
0da71265
MN
1281 for(y=0; y<4; y++){
1282 *(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];
1283 *(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];
1284 }
9e528114 1285 if( h->pps.cabac ) {
e6e77eb6
LM
1286 if(IS_SKIP(mb_type))
1287 fill_rectangle(h->mvd_table[list][b_xy], 4, 4, h->b_stride, 0, 4);
1288 else
9e528114
LA
1289 for(y=0; y<4; y++){
1290 *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+0 + 8*y];
1291 *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+2 + 8*y];
1292 }
1293 }
53b19144
LM
1294
1295 {
191e8ca7 1296 int8_t *ref_index = &s->current_picture.ref_index[list][b8_xy];
53b19144
LM
1297 ref_index[0+0*h->b8_stride]= h->ref_cache[list][scan8[0]];
1298 ref_index[1+0*h->b8_stride]= h->ref_cache[list][scan8[4]];
1299 ref_index[0+1*h->b8_stride]= h->ref_cache[list][scan8[8]];
1300 ref_index[1+1*h->b8_stride]= h->ref_cache[list][scan8[12]];
0da71265
MN
1301 }
1302 }
115329f1 1303
9f5c1037 1304 if(h->slice_type_nos == FF_B_TYPE && h->pps.cabac){
5ad984c9 1305 if(IS_8X8(mb_type)){
53b19144
LM
1306 uint8_t *direct_table = &h->direct_table[b8_xy];
1307 direct_table[1+0*h->b8_stride] = IS_DIRECT(h->sub_mb_type[1]) ? 1 : 0;
1308 direct_table[0+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[2]) ? 1 : 0;
1309 direct_table[1+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[3]) ? 1 : 0;
5ad984c9
LM
1310 }
1311 }
0da71265
MN
1312}
1313
1314/**
1315 * Decodes a network abstraction layer unit.
1316 * @param consumed is the number of bytes used as input
1317 * @param length is the length of the array
3b66c4c5 1318 * @param dst_length is the number of decoded bytes FIXME here or a decode rbsp tailing?
115329f1 1319 * @returns decoded bytes, might be src+1 if no escapes
0da71265 1320 */
30317501 1321static const uint8_t *decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length){
0da71265
MN
1322 int i, si, di;
1323 uint8_t *dst;
24456882 1324 int bufidx;
0da71265 1325
bb270c08 1326// src[0]&0x80; //forbidden bit
0da71265
MN
1327 h->nal_ref_idc= src[0]>>5;
1328 h->nal_unit_type= src[0]&0x1F;
1329
1330 src++; length--;
115329f1 1331#if 0
0da71265
MN
1332 for(i=0; i<length; i++)
1333 printf("%2X ", src[i]);
1334#endif
1335 for(i=0; i+1<length; i+=2){
1336 if(src[i]) continue;
1337 if(i>0 && src[i-1]==0) i--;
1338 if(i+2<length && src[i+1]==0 && src[i+2]<=3){
1339 if(src[i+2]!=3){
1340 /* startcode, so we must be past the end */
1341 length=i;
1342 }
1343 break;
1344 }
1345 }
1346
1347 if(i>=length-1){ //no escaped 0
1348 *dst_length= length;
1349 *consumed= length+1; //+1 for the header
115329f1 1350 return src;
0da71265
MN
1351 }
1352
24456882
1353 bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data
1354 h->rbsp_buffer[bufidx]= av_fast_realloc(h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length);
1355 dst= h->rbsp_buffer[bufidx];
0da71265 1356
ac658be5
FOL
1357 if (dst == NULL){
1358 return NULL;
1359 }
1360
3b66c4c5 1361//printf("decoding esc\n");
0da71265 1362 si=di=0;
115329f1 1363 while(si<length){
0da71265
MN
1364 //remove escapes (very rare 1:2^22)
1365 if(si+2<length && src[si]==0 && src[si+1]==0 && src[si+2]<=3){
1366 if(src[si+2]==3){ //escape
1367 dst[di++]= 0;
1368 dst[di++]= 0;
1369 si+=3;
c8470cc1 1370 continue;
0da71265
MN
1371 }else //next start code
1372 break;
1373 }
1374
1375 dst[di++]= src[si++];
1376 }
1377
1378 *dst_length= di;
1379 *consumed= si + 1;//+1 for the header
90b5b51e 1380//FIXME store exact number of bits in the getbitcontext (it is needed for decoding)
0da71265
MN
1381 return dst;
1382}
1383
0da71265
MN
1384/**
1385 * identifies the exact end of the bitstream
1386 * @return the length of the trailing, or 0 if damaged
1387 */
30317501 1388static int decode_rbsp_trailing(H264Context *h, const uint8_t *src){
0da71265
MN
1389 int v= *src;
1390 int r;
1391
a9c9a240 1392 tprintf(h->s.avctx, "rbsp trailing %X\n", v);
0da71265
MN
1393
1394 for(r=1; r<9; r++){
1395 if(v&1) return r;
1396 v>>=1;
1397 }
1398 return 0;
1399}
1400
1401/**
1412060e 1402 * IDCT transforms the 16 dc values and dequantizes them.
0da71265
MN
1403 * @param qp quantization parameter
1404 */
239ea04c 1405static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){
0da71265
MN
1406#define stride 16
1407 int i;
1408 int temp[16]; //FIXME check if this is a good idea
1409 static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
1410 static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
1411
1412//memset(block, 64, 2*256);
1413//return;
1414 for(i=0; i<4; i++){
1415 const int offset= y_offset[i];
1416 const int z0= block[offset+stride*0] + block[offset+stride*4];
1417 const int z1= block[offset+stride*0] - block[offset+stride*4];
1418 const int z2= block[offset+stride*1] - block[offset+stride*5];
1419 const int z3= block[offset+stride*1] + block[offset+stride*5];
1420
1421 temp[4*i+0]= z0+z3;
1422 temp[4*i+1]= z1+z2;
1423 temp[4*i+2]= z1-z2;
1424 temp[4*i+3]= z0-z3;
1425 }
1426
1427 for(i=0; i<4; i++){
1428 const int offset= x_offset[i];
1429 const int z0= temp[4*0+i] + temp[4*2+i];
1430 const int z1= temp[4*0+i] - temp[4*2+i];
1431 const int z2= temp[4*1+i] - temp[4*3+i];
1432 const int z3= temp[4*1+i] + temp[4*3+i];
1433
1412060e 1434 block[stride*0 +offset]= ((((z0 + z3)*qmul + 128 ) >> 8)); //FIXME think about merging this into decode_residual
239ea04c
LM
1435 block[stride*2 +offset]= ((((z1 + z2)*qmul + 128 ) >> 8));
1436 block[stride*8 +offset]= ((((z1 - z2)*qmul + 128 ) >> 8));
1437 block[stride*10+offset]= ((((z0 - z3)*qmul + 128 ) >> 8));
0da71265
MN
1438 }
1439}
1440
e5017ab8 1441#if 0
0da71265 1442/**
1412060e 1443 * DCT transforms the 16 dc values.
0da71265
MN
1444 * @param qp quantization parameter ??? FIXME
1445 */
1446static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
1447// const int qmul= dequant_coeff[qp][0];
1448 int i;
1449 int temp[16]; //FIXME check if this is a good idea
1450 static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
1451 static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
1452
1453 for(i=0; i<4; i++){
1454 const int offset= y_offset[i];
1455 const int z0= block[offset+stride*0] + block[offset+stride*4];
1456 const int z1= block[offset+stride*0] - block[offset+stride*4];
1457 const int z2= block[offset+stride*1] - block[offset+stride*5];
1458 const int z3= block[offset+stride*1] + block[offset+stride*5];
1459
1460 temp[4*i+0]= z0+z3;
1461 temp[4*i+1]= z1+z2;
1462 temp[4*i+2]= z1-z2;
1463 temp[4*i+3]= z0-z3;
1464 }
1465
1466 for(i=0; i<4; i++){
1467 const int offset= x_offset[i];
1468 const int z0= temp[4*0+i] + temp[4*2+i];
1469 const int z1= temp[4*0+i] - temp[4*2+i];
1470 const int z2= temp[4*1+i] - temp[4*3+i];
1471 const int z3= temp[4*1+i] + temp[4*3+i];
1472
1473 block[stride*0 +offset]= (z0 + z3)>>1;
1474 block[stride*2 +offset]= (z1 + z2)>>1;
1475 block[stride*8 +offset]= (z1 - z2)>>1;
1476 block[stride*10+offset]= (z0 - z3)>>1;
1477 }
1478}
e5017ab8
LA
1479#endif
1480
0da71265
MN
1481#undef xStride
1482#undef stride
1483
239ea04c 1484static void chroma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){
0da71265
MN
1485 const int stride= 16*2;
1486 const int xStride= 16;
1487 int a,b,c,d,e;
1488
1489 a= block[stride*0 + xStride*0];
1490 b= block[stride*0 + xStride*1];
1491 c= block[stride*1 + xStride*0];
1492 d= block[stride*1 + xStride*1];
1493
1494 e= a-b;
1495 a= a+b;
1496 b= c-d;
1497 c= c+d;
1498
239ea04c
LM
1499 block[stride*0 + xStride*0]= ((a+c)*qmul) >> 7;
1500 block[stride*0 + xStride*1]= ((e+b)*qmul) >> 7;
1501 block[stride*1 + xStride*0]= ((a-c)*qmul) >> 7;
1502 block[stride*1 + xStride*1]= ((e-b)*qmul) >> 7;
0da71265
MN
1503}
1504
e5017ab8 1505#if 0
0da71265
MN
1506static void chroma_dc_dct_c(DCTELEM *block){
1507 const int stride= 16*2;
1508 const int xStride= 16;
1509 int a,b,c,d,e;
1510
1511 a= block[stride*0 + xStride*0];
1512 b= block[stride*0 + xStride*1];
1513 c= block[stride*1 + xStride*0];
1514 d= block[stride*1 + xStride*1];
1515
1516 e= a-b;
1517 a= a+b;
1518 b= c-d;
1519 c= c+d;
1520
1521 block[stride*0 + xStride*0]= (a+c);
1522 block[stride*0 + xStride*1]= (e+b);
1523 block[stride*1 + xStride*0]= (a-c);
1524 block[stride*1 + xStride*1]= (e-b);
1525}
e5017ab8 1526#endif
0da71265
MN
1527
1528/**
1529 * gets the chroma qp.
1530 */
4691a77d 1531static inline int get_chroma_qp(H264Context *h, int t, int qscale){
5a78bfbd 1532 return h->pps.chroma_qp_table[t][qscale];
0da71265
MN
1533}
1534
2cab6401 1535//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
1536//FIXME check that gcc inlines this (and optimizes intra & separate_dc stuff away)
1537static inline int quantize_c(DCTELEM *block, uint8_t *scantable, int qscale, int intra, int separate_dc){
0da71265
MN
1538 int i;
1539 const int * const quant_table= quant_coeff[qscale];
1540 const int bias= intra ? (1<<QUANT_SHIFT)/3 : (1<<QUANT_SHIFT)/6;
1541 const unsigned int threshold1= (1<<QUANT_SHIFT) - bias - 1;
1542 const unsigned int threshold2= (threshold1<<1);
1543 int last_non_zero;
1544
0afd2a92 1545 if(separate_dc){
0da71265
MN
1546 if(qscale<=18){
1547 //avoid overflows
1548 const int dc_bias= intra ? (1<<(QUANT_SHIFT-2))/3 : (1<<(QUANT_SHIFT-2))/6;
1549 const unsigned int dc_threshold1= (1<<(QUANT_SHIFT-2)) - dc_bias - 1;
1550 const unsigned int dc_threshold2= (dc_threshold1<<1);
1551
1552 int level= block[0]*quant_coeff[qscale+18][0];
1553 if(((unsigned)(level+dc_threshold1))>dc_threshold2){
1554 if(level>0){
1555 level= (dc_bias + level)>>(QUANT_SHIFT-2);
1556 block[0]= level;
1557 }else{
1558 level= (dc_bias - level)>>(QUANT_SHIFT-2);
1559 block[0]= -level;
1560 }
1561// last_non_zero = i;
1562 }else{
1563 block[0]=0;
1564 }
1565 }else{
1566 const int dc_bias= intra ? (1<<(QUANT_SHIFT+1))/3 : (1<<(QUANT_SHIFT+1))/6;
1567 const unsigned int dc_threshold1= (1<<(QUANT_SHIFT+1)) - dc_bias - 1;
1568 const unsigned int dc_threshold2= (dc_threshold1<<1);
1569
1570 int level= block[0]*quant_table[0];
1571 if(((unsigned)(level+dc_threshold1))>dc_threshold2){
1572 if(level>0){
1573 level= (dc_bias + level)>>(QUANT_SHIFT+1);
1574 block[0]= level;
1575 }else{
1576 level= (dc_bias - level)>>(QUANT_SHIFT+1);
1577 block[0]= -level;
1578 }
1579// last_non_zero = i;
1580 }else{
1581 block[0]=0;
1582 }
1583 }
1584 last_non_zero= 0;
1585 i=1;
1586 }else{
1587 last_non_zero= -1;
1588 i=0;
1589 }
1590
1591 for(; i<16; i++){
1592 const int j= scantable[i];
1593 int level= block[j]*quant_table[j];
1594
1595// if( bias+level >= (1<<(QMAT_SHIFT - 3))
1596// || bias-level >= (1<<(QMAT_SHIFT - 3))){
1597 if(((unsigned)(level+threshold1))>threshold2){
1598 if(level>0){
1599 level= (bias + level)>>QUANT_SHIFT;
1600 block[j]= level;
1601 }else{
1602 level= (bias - level)>>QUANT_SHIFT;
1603 block[j]= -level;
1604 }
1605 last_non_zero = i;
1606 }else{
1607 block[j]=0;
1608 }
1609 }
1610
1611 return last_non_zero;
1612}
1613
0da71265
MN
1614static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list,
1615 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
1616 int src_x_offset, int src_y_offset,
1617 qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op){
1618 MpegEncContext * const s = &h->s;
1619 const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8;
5d18eaad 1620 int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8;
0da71265 1621 const int luma_xy= (mx&3) + ((my&3)<<2);
5d18eaad
LM
1622 uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*h->mb_linesize;
1623 uint8_t * src_cb, * src_cr;
1624 int extra_width= h->emu_edge_width;
1625 int extra_height= h->emu_edge_height;
0da71265
MN
1626 int emu=0;
1627 const int full_mx= mx>>2;
1628 const int full_my= my>>2;
fbd312fd 1629 const int pic_width = 16*s->mb_width;
0d43dd8c 1630 const int pic_height = 16*s->mb_height >> MB_FIELD;
115329f1 1631
1412060e 1632 if(!pic->data[0]) //FIXME this is unacceptable, some sensible error concealment must be done for missing reference frames
171c4076 1633 return;
115329f1 1634
0da71265
MN
1635 if(mx&7) extra_width -= 3;
1636 if(my&7) extra_height -= 3;
115329f1
DB
1637
1638 if( full_mx < 0-extra_width
1639 || full_my < 0-extra_height
1640 || full_mx + 16/*FIXME*/ > pic_width + extra_width
fbd312fd 1641 || full_my + 16/*FIXME*/ > pic_height + extra_height){
5d18eaad
LM
1642 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);
1643 src_y= s->edge_emu_buffer + 2 + 2*h->mb_linesize;
0da71265
MN
1644 emu=1;
1645 }
115329f1 1646
5d18eaad 1647 qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); //FIXME try variable height perhaps?
0da71265 1648 if(!square){
5d18eaad 1649 qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize);
0da71265 1650 }
115329f1 1651
87352549 1652 if(ENABLE_GRAY && s->flags&CODEC_FLAG_GRAY) return;
115329f1 1653
0d43dd8c 1654 if(MB_FIELD){
5d18eaad 1655 // chroma offset when predicting from a field of opposite parity
2143b118 1656 my += 2 * ((s->mb_y & 1) - (pic->reference - 1));
5d18eaad
LM
1657 emu |= (my>>3) < 0 || (my>>3) + 8 >= (pic_height>>1);
1658 }
1659 src_cb= pic->data[1] + (mx>>3) + (my>>3)*h->mb_uvlinesize;
1660 src_cr= pic->data[2] + (mx>>3) + (my>>3)*h->mb_uvlinesize;
1661
0da71265 1662 if(emu){
5d18eaad 1663 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
1664 src_cb= s->edge_emu_buffer;
1665 }
5d18eaad 1666 chroma_op(dest_cb, src_cb, h->mb_uvlinesize, chroma_height, mx&7, my&7);
0da71265
MN
1667
1668 if(emu){
5d18eaad 1669 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
1670 src_cr= s->edge_emu_buffer;
1671 }
5d18eaad 1672 chroma_op(dest_cr, src_cr, h->mb_uvlinesize, chroma_height, mx&7, my&7);
0da71265
MN
1673}
1674
9f2d1b4f 1675static inline void mc_part_std(H264Context *h, int n, int square, int chroma_height, int delta,
0da71265
MN
1676 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
1677 int x_offset, int y_offset,
1678 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
1679 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
1680 int list0, int list1){
1681 MpegEncContext * const s = &h->s;
1682 qpel_mc_func *qpix_op= qpix_put;
1683 h264_chroma_mc_func chroma_op= chroma_put;
115329f1 1684
5d18eaad
LM
1685 dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize;
1686 dest_cb += x_offset + y_offset*h->mb_uvlinesize;
1687 dest_cr += x_offset + y_offset*h->mb_uvlinesize;
0da71265 1688 x_offset += 8*s->mb_x;
0d43dd8c 1689 y_offset += 8*(s->mb_y >> MB_FIELD);
115329f1 1690
0da71265 1691 if(list0){
1924f3ce 1692 Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ];
0da71265
MN
1693 mc_dir_part(h, ref, n, square, chroma_height, delta, 0,
1694 dest_y, dest_cb, dest_cr, x_offset, y_offset,
1695 qpix_op, chroma_op);
1696
1697 qpix_op= qpix_avg;
1698 chroma_op= chroma_avg;
1699 }
1700
1701 if(list1){
1924f3ce 1702 Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ];
0da71265
MN
1703 mc_dir_part(h, ref, n, square, chroma_height, delta, 1,
1704 dest_y, dest_cb, dest_cr, x_offset, y_offset,
1705 qpix_op, chroma_op);
1706 }
1707}
1708
9f2d1b4f
LM
1709static inline void mc_part_weighted(H264Context *h, int n, int square, int chroma_height, int delta,
1710 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
1711 int x_offset, int y_offset,
1712 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
1713 h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op,
1714 h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg,
1715 int list0, int list1){
1716 MpegEncContext * const s = &h->s;
1717
5d18eaad
LM
1718 dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize;
1719 dest_cb += x_offset + y_offset*h->mb_uvlinesize;
1720 dest_cr += x_offset + y_offset*h->mb_uvlinesize;
9f2d1b4f 1721 x_offset += 8*s->mb_x;
0d43dd8c 1722 y_offset += 8*(s->mb_y >> MB_FIELD);
115329f1 1723
9f2d1b4f
LM
1724 if(list0 && list1){
1725 /* don't optimize for luma-only case, since B-frames usually
1726 * use implicit weights => chroma too. */
1727 uint8_t *tmp_cb = s->obmc_scratchpad;
5d18eaad
LM
1728 uint8_t *tmp_cr = s->obmc_scratchpad + 8;
1729 uint8_t *tmp_y = s->obmc_scratchpad + 8*h->mb_uvlinesize;
9f2d1b4f
LM
1730 int refn0 = h->ref_cache[0][ scan8[n] ];
1731 int refn1 = h->ref_cache[1][ scan8[n] ];
1732
1733 mc_dir_part(h, &h->ref_list[0][refn0], n, square, chroma_height, delta, 0,
1734 dest_y, dest_cb, dest_cr,
1735 x_offset, y_offset, qpix_put, chroma_put);
1736 mc_dir_part(h, &h->ref_list[1][refn1], n, square, chroma_height, delta, 1,
1737 tmp_y, tmp_cb, tmp_cr,
1738 x_offset, y_offset, qpix_put, chroma_put);
1739
1740 if(h->use_weight == 2){
1741 int weight0 = h->implicit_weight[refn0][refn1];
1742 int weight1 = 64 - weight0;
5d18eaad
LM
1743 luma_weight_avg( dest_y, tmp_y, h-> mb_linesize, 5, weight0, weight1, 0);
1744 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, 5, weight0, weight1, 0);
1745 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, 5, weight0, weight1, 0);
9f2d1b4f 1746 }else{
5d18eaad 1747 luma_weight_avg(dest_y, tmp_y, h->mb_linesize, h->luma_log2_weight_denom,
115329f1 1748 h->luma_weight[0][refn0], h->luma_weight[1][refn1],
e8b56208 1749 h->luma_offset[0][refn0] + h->luma_offset[1][refn1]);
5d18eaad 1750 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom,
115329f1 1751 h->chroma_weight[0][refn0][0], h->chroma_weight[1][refn1][0],
e8b56208 1752 h->chroma_offset[0][refn0][0] + h->chroma_offset[1][refn1][0]);
5d18eaad 1753 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom,
115329f1 1754 h->chroma_weight[0][refn0][1], h->chroma_weight[1][refn1][1],
e8b56208 1755 h->chroma_offset[0][refn0][1] + h->chroma_offset[1][refn1][1]);
9f2d1b4f
LM
1756 }
1757 }else{
1758 int list = list1 ? 1 : 0;
1759 int refn = h->ref_cache[list][ scan8[n] ];
1760 Picture *ref= &h->ref_list[list][refn];
1761 mc_dir_part(h, ref, n, square, chroma_height, delta, list,
1762 dest_y, dest_cb, dest_cr, x_offset, y_offset,
1763 qpix_put, chroma_put);
1764
5d18eaad 1765 luma_weight_op(dest_y, h->mb_linesize, h->luma_log2_weight_denom,
9f2d1b4f
LM
1766 h->luma_weight[list][refn], h->luma_offset[list][refn]);
1767 if(h->use_weight_chroma){
5d18eaad 1768 chroma_weight_op(dest_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom,
9f2d1b4f 1769 h->chroma_weight[list][refn][0], h->chroma_offset[list][refn][0]);
5d18eaad 1770 chroma_weight_op(dest_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom,
9f2d1b4f
LM
1771 h->chroma_weight[list][refn][1], h->chroma_offset[list][refn][1]);
1772 }
1773 }
1774}
1775
1776static inline void mc_part(H264Context *h, int n, int square, int chroma_height, int delta,
1777 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
1778 int x_offset, int y_offset,
1779 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
1780 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
115329f1 1781 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
9f2d1b4f
LM
1782 int list0, int list1){
1783 if((h->use_weight==2 && list0 && list1
1784 && (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ] != 32))
1785 || h->use_weight==1)
1786 mc_part_weighted(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
1787 x_offset, y_offset, qpix_put, chroma_put,
1788 weight_op[0], weight_op[3], weight_avg[0], weight_avg[3], list0, list1);
1789 else
1790 mc_part_std(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
1791 x_offset, y_offset, qpix_put, chroma_put, qpix_avg, chroma_avg, list0, list1);
1792}
1793
513fbd8e
LM
1794static inline void prefetch_motion(H264Context *h, int list){
1795 /* fetch pixels for estimated mv 4 macroblocks ahead
1796 * optimized for 64byte cache lines */
1797 MpegEncContext * const s = &h->s;
1798 const int refn = h->ref_cache[list][scan8[0]];
1799 if(refn >= 0){
1800 const int mx= (h->mv_cache[list][scan8[0]][0]>>2) + 16*s->mb_x + 8;
1801 const int my= (h->mv_cache[list][scan8[0]][1]>>2) + 16*s->mb_y;
1802 uint8_t **src= h->ref_list[list][refn].data;
5d18eaad 1803 int off= mx + (my + (s->mb_x&3)*4)*h->mb_linesize + 64;
513fbd8e
LM
1804 s->dsp.prefetch(src[0]+off, s->linesize, 4);
1805 off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64;
1806 s->dsp.prefetch(src[1]+off, src[2]-src[1], 2);
1807 }
1808}
1809
0da71265
MN
1810static void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
1811 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
9f2d1b4f
LM
1812 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
1813 h264_weight_func *weight_op, h264_biweight_func *weight_avg){
0da71265 1814 MpegEncContext * const s = &h->s;
64514ee8 1815 const int mb_xy= h->mb_xy;
0da71265 1816 const int mb_type= s->current_picture.mb_type[mb_xy];
115329f1 1817
0da71265 1818 assert(IS_INTER(mb_type));
115329f1 1819
513fbd8e
LM
1820 prefetch_motion(h, 0);
1821
0da71265
MN
1822 if(IS_16X16(mb_type)){
1823 mc_part(h, 0, 1, 8, 0, dest_y, dest_cb, dest_cr, 0, 0,
1824 qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
9f2d1b4f 1825 &weight_op[0], &weight_avg[0],
0da71265
MN
1826 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
1827 }else if(IS_16X8(mb_type)){
1828 mc_part(h, 0, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 0,
1829 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
9f2d1b4f 1830 &weight_op[1], &weight_avg[1],
0da71265
MN
1831 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
1832 mc_part(h, 8, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 4,
1833 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
9f2d1b4f 1834 &weight_op[1], &weight_avg[1],
0da71265
MN
1835 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
1836 }else if(IS_8X16(mb_type)){
5d18eaad 1837 mc_part(h, 0, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
0da71265 1838 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
9f2d1b4f 1839 &weight_op[2], &weight_avg[2],
0da71265 1840 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
5d18eaad 1841 mc_part(h, 4, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
0da71265 1842 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
9f2d1b4f 1843 &weight_op[2], &weight_avg[2],
0da71265
MN
1844 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
1845 }else{
1846 int i;
115329f1 1847
0da71265
MN
1848 assert(IS_8X8(mb_type));
1849
1850 for(i=0; i<4; i++){
1851 const int sub_mb_type= h->sub_mb_type[i];
1852 const int n= 4*i;
1853 int x_offset= (i&1)<<2;
1854 int y_offset= (i&2)<<1;
1855
1856 if(IS_SUB_8X8(sub_mb_type)){
1857 mc_part(h, n, 1, 4, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset,
1858 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
9f2d1b4f 1859 &weight_op[3], &weight_avg[3],
0da71265
MN
1860 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
1861 }else if(IS_SUB_8X4(sub_mb_type)){
1862 mc_part(h, n , 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset,
1863 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
9f2d1b4f 1864 &weight_op[4], &weight_avg[4],
0da71265
MN
1865 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
1866 mc_part(h, n+2, 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset+2,
1867 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
9f2d1b4f 1868 &weight_op[4], &weight_avg[4],
0da71265
MN
1869 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
1870 }else if(IS_SUB_4X8(sub_mb_type)){
5d18eaad 1871 mc_part(h, n , 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset,
0da71265 1872 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
9f2d1b4f 1873 &weight_op[5], &weight_avg[5],
0da71265 1874 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
5d18eaad 1875 mc_part(h, n+1, 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset,
0da71265 1876 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
9f2d1b4f 1877 &weight_op[5], &weight_avg[5],
0da71265
MN
1878 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
1879 }else{
1880 int j;
1881 assert(IS_SUB_4X4(sub_mb_type));
1882 for(j=0; j<4; j++){
1883 int sub_x_offset= x_offset + 2*(j&1);
1884 int sub_y_offset= y_offset + (j&2);
1885 mc_part(h, n+j, 1, 2, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
1886 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
9f2d1b4f 1887 &weight_op[6], &weight_avg[6],
0da71265
MN
1888 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
1889 }
1890 }
1891 }
1892 }
513fbd8e
LM
1893
1894 prefetch_motion(h, 1);
0da71265
MN
1895}
1896
98a6fff9 1897static av_cold void decode_init_vlc(void){
0da71265
MN
1898 static int done = 0;
1899
1900 if (!done) {
1901 int i;
910e3668 1902 int offset;
0da71265
MN
1903 done = 1;
1904
910e3668
AC
1905 chroma_dc_coeff_token_vlc.table = chroma_dc_coeff_token_vlc_table;
1906 chroma_dc_coeff_token_vlc.table_allocated = chroma_dc_coeff_token_vlc_table_size;
115329f1 1907 init_vlc(&chroma_dc_coeff_token_vlc, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 4*5,
0da71265 1908 &chroma_dc_coeff_token_len [0], 1, 1,
910e3668
AC
1909 &chroma_dc_coeff_token_bits[0], 1, 1,
1910 INIT_VLC_USE_NEW_STATIC);
0da71265 1911
910e3668 1912 offset = 0;
0da71265 1913 for(i=0; i<4; i++){
910e3668
AC
1914 coeff_token_vlc[i].table = coeff_token_vlc_tables+offset;
1915 coeff_token_vlc[i].table_allocated = coeff_token_vlc_tables_size[i];
115329f1 1916 init_vlc(&coeff_token_vlc[i], COEFF_TOKEN_VLC_BITS, 4*17,
0da71265 1917 &coeff_token_len [i][0], 1, 1,
910e3668
AC
1918 &coeff_token_bits[i][0], 1, 1,
1919 INIT_VLC_USE_NEW_STATIC);
1920 offset += coeff_token_vlc_tables_size[i];
0da71265 1921 }
910e3668
AC
1922 /*
1923 * This is a one time safety check to make sure that
1924 * the packed static coeff_token_vlc table sizes
1925 * were initialized correctly.
1926 */
1927 assert(offset == sizeof(coeff_token_vlc_tables)/(sizeof(VLC_TYPE)*2));
0da71265
MN
1928
1929 for(i=0; i<3; i++){
910e3668
AC
1930 chroma_dc_total_zeros_vlc[i].table = chroma_dc_total_zeros_vlc_tables[i];
1931 chroma_dc_total_zeros_vlc[i].table_allocated = chroma_dc_total_zeros_vlc_tables_size;
1932 init_vlc(&chroma_dc_total_zeros_vlc[i],
1933 CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 4,
0da71265 1934 &chroma_dc_total_zeros_len [i][0], 1, 1,
910e3668
AC
1935 &chroma_dc_total_zeros_bits[i][0], 1, 1,
1936 INIT_VLC_USE_NEW_STATIC);
0da71265
MN
1937 }
1938 for(i=0; i<15; i++){
910e3668
AC
1939 total_zeros_vlc[i].table = total_zeros_vlc_tables[i];
1940 total_zeros_vlc[i].table_allocated = total_zeros_vlc_tables_size;
1941 init_vlc(&total_zeros_vlc[i],
1942 TOTAL_ZEROS_VLC_BITS, 16,
0da71265 1943 &total_zeros_len [i][0], 1, 1,
910e3668
AC
1944 &total_zeros_bits[i][0], 1, 1,
1945 INIT_VLC_USE_NEW_STATIC);
0da71265
MN
1946 }
1947
1948 for(i=0; i<6; i++){
910e3668
AC
1949 run_vlc[i].table = run_vlc_tables[i];
1950 run_vlc[i].table_allocated = run_vlc_tables_size;
1951 init_vlc(&run_vlc[i],
1952 RUN_VLC_BITS, 7,
0da71265 1953 &run_len [i][0], 1, 1,
910e3668
AC
1954 &run_bits[i][0], 1, 1,
1955 INIT_VLC_USE_NEW_STATIC);
0da71265 1956 }
910e3668
AC
1957 run7_vlc.table = run7_vlc_table,
1958 run7_vlc.table_allocated = run7_vlc_table_size;
115329f1 1959 init_vlc(&run7_vlc, RUN7_VLC_BITS, 16,
0da71265 1960 &run_len [6][0], 1, 1,
910e3668
AC
1961 &run_bits[6][0], 1, 1,
1962 INIT_VLC_USE_NEW_STATIC);
0da71265
MN
1963 }
1964}
1965
0da71265 1966static void free_tables(H264Context *h){
7978debd 1967 int i;
afebe2f7 1968 H264Context *hx;
0da71265 1969 av_freep(&h->intra4x4_pred_mode);
e5017ab8
LA
1970 av_freep(&h->chroma_pred_mode_table);
1971 av_freep(&h->cbp_table);
9e528114
LA
1972 av_freep(&h->mvd_table[0]);
1973 av_freep(&h->mvd_table[1]);
5ad984c9 1974 av_freep(&h->direct_table);
0da71265
MN
1975 av_freep(&h->non_zero_count);
1976 av_freep(&h->slice_table_base);
1977 h->slice_table= NULL;
e5017ab8 1978
0da71265
MN
1979 av_freep(&h->mb2b_xy);
1980 av_freep(&h->mb2b8_xy);
9f2d1b4f 1981
7978debd
1982 for(i = 0; i < MAX_SPS_COUNT; i++)
1983 av_freep(h->sps_buffers + i);
1984
1985 for(i = 0; i < MAX_PPS_COUNT; i++)
1986 av_freep(h->pps_buffers + i);
afebe2f7
1987
1988 for(i = 0; i < h->s.avctx->thread_count; i++) {
1989 hx = h->thread_context[i];
1990 if(!hx) continue;
1991 av_freep(&hx->top_borders[1]);
1992 av_freep(&hx->top_borders[0]);
1993 av_freep(&hx->s.obmc_scratchpad);
afebe2f7 1994 }
0da71265
MN
1995}
1996
239ea04c
LM
1997static void init_dequant8_coeff_table(H264Context *h){
1998 int i,q,x;
548a1c8a 1999 const int transpose = (h->s.dsp.h264_idct8_add != ff_h264_idct8_add_c); //FIXME ugly
239ea04c
LM
2000 h->dequant8_coeff[0] = h->dequant8_buffer[0];
2001 h->dequant8_coeff[1] = h->dequant8_buffer[1];
2002
2003 for(i=0; i<2; i++ ){
2004 if(i && !memcmp(h->pps.scaling_matrix8[0], h->pps.scaling_matrix8[1], 64*sizeof(uint8_t))){
2005 h->dequant8_coeff[1] = h->dequant8_buffer[0];
2006 break;
2007 }
2008
2009 for(q=0; q<52; q++){
acd8d10f
PI
2010 int shift = ff_div6[q];
2011 int idx = ff_rem6[q];
239ea04c 2012 for(x=0; x<64; x++)
548a1c8a
LM
2013 h->dequant8_coeff[i][q][transpose ? (x>>3)|((x&7)<<3) : x] =
2014 ((uint32_t)dequant8_coeff_init[idx][ dequant8_coeff_init_scan[((x>>1)&12) | (x&3)] ] *
2015 h->pps.scaling_matrix8[i][x]) << shift;
239ea04c
LM
2016 }
2017 }
2018}
2019
2020static void init_dequant4_coeff_table(H264Context *h){
2021 int i,j,q,x;
ab2e3e2c 2022 const int transpose = (h->s.dsp.h264_idct_add != ff_h264_idct_add_c); //FIXME ugly
239ea04c
LM
2023 for(i=0; i<6; i++ ){
2024 h->dequant4_coeff[i] = h->dequant4_buffer[i];
2025 for(j=0; j<i; j++){
2026 if(!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], 16*sizeof(uint8_t))){
2027 h->dequant4_coeff[i] = h->dequant4_buffer[j];
2028 break;
2029 }
2030 }
2031 if(j<i)
2032 continue;
2033
2034 for(q=0; q<52; q++){
acd8d10f
PI
2035 int shift = ff_div6[q] + 2;
2036 int idx = ff_rem6[q];
239ea04c 2037 for(x=0; x<16; x++)
ab2e3e2c
LM
2038 h->dequant4_coeff[i][q][transpose ? (x>>2)|((x<<2)&0xF) : x] =
2039 ((uint32_t)dequant4_coeff_init[idx][(x&1) + ((x>>2)&1)] *
239ea04c
LM
2040 h->pps.scaling_matrix4[i][x]) << shift;
2041 }
2042 }
2043}
2044
2045static void init_dequant_tables(H264Context *h){
2046 int i,x;
2047 init_dequant4_coeff_table(h);
2048 if(h->pps.transform_8x8_mode)
2049 init_dequant8_coeff_table(h);
2050 if(h->sps.transform_bypass){
2051 for(i=0; i<6; i++)
2052 for(x=0; x<16; x++)
2053 h->dequant4_coeff[i][0][x] = 1<<6;
2054 if(h->pps.transform_8x8_mode)
2055 for(i=0; i<2; i++)
2056 for(x=0; x<64; x++)
2057 h->dequant8_coeff[i][0][x] = 1<<6;
2058 }
2059}
2060
2061
0da71265
MN
2062/**
2063 * allocates tables.
3b66c4c5 2064 * needs width/height
0da71265
MN
2065 */
2066static int alloc_tables(H264Context *h){
2067 MpegEncContext * const s = &h->s;
7bc9090a 2068 const int big_mb_num= s->mb_stride * (s->mb_height+1);
239ea04c 2069 int x,y;
0da71265
MN
2070
2071 CHECKED_ALLOCZ(h->intra4x4_pred_mode, big_mb_num * 8 * sizeof(uint8_t))
e5017ab8 2072
53c05b1e 2073 CHECKED_ALLOCZ(h->non_zero_count , big_mb_num * 16 * sizeof(uint8_t))
5d18eaad 2074 CHECKED_ALLOCZ(h->slice_table_base , (big_mb_num+s->mb_stride) * sizeof(uint8_t))
5d0e4cb8 2075 CHECKED_ALLOCZ(h->cbp_table, big_mb_num * sizeof(uint16_t))
0da71265 2076
7526ade2
MN
2077 CHECKED_ALLOCZ(h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t))
2078 CHECKED_ALLOCZ(h->mvd_table[0], 32*big_mb_num * sizeof(uint16_t));
2079 CHECKED_ALLOCZ(h->mvd_table[1], 32*big_mb_num * sizeof(uint16_t));
2080 CHECKED_ALLOCZ(h->direct_table, 32*big_mb_num * sizeof(uint8_t));
e5017ab8 2081
5d18eaad
LM
2082 memset(h->slice_table_base, -1, (big_mb_num+s->mb_stride) * sizeof(uint8_t));
2083 h->slice_table= h->slice_table_base + s->mb_stride*2 + 1;
0da71265 2084
a55f20bd
LM
2085 CHECKED_ALLOCZ(h->mb2b_xy , big_mb_num * sizeof(uint32_t));
2086 CHECKED_ALLOCZ(h->mb2b8_xy , big_mb_num * sizeof(uint32_t));
0da71265
MN
2087 for(y=0; y<s->mb_height; y++){
2088 for(x=0; x<s->mb_width; x++){
7bc9090a 2089 const int mb_xy= x + y*s->mb_stride;
0da71265
MN
2090 const int b_xy = 4*x + 4*y*h->b_stride;
2091 const int b8_xy= 2*x + 2*y*h->b8_stride;
115329f1 2092
0da71265
MN
2093 h->mb2b_xy [mb_xy]= b_xy;
2094 h->mb2b8_xy[mb_xy]= b8_xy;
2095 }
2096 }
9f2d1b4f 2097
9c6221ae
GV
2098 s->obmc_scratchpad = NULL;
2099
56edbd81
LM
2100 if(!h->dequant4_coeff[0])
2101 init_dequant_tables(h);
2102
0da71265
MN
2103 return 0;
2104fail:
2105 free_tables(h);
2106 return -1;
2107}
2108
afebe2f7
2109/**
2110 * Mimic alloc_tables(), but for every context thread.
2111 */
2112static void clone_tables(H264Context *dst, H264Context *src){
2113 dst->intra4x4_pred_mode = src->intra4x4_pred_mode;
2114 dst->non_zero_count = src->non_zero_count;
2115 dst->slice_table = src->slice_table;
2116 dst->cbp_table = src->cbp_table;
2117 dst->mb2b_xy = src->mb2b_xy;
2118 dst->mb2b8_xy = src->mb2b8_xy;
2119 dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
2120 dst->mvd_table[0] = src->mvd_table[0];
2121 dst->mvd_table[1] = src->mvd_table[1];
2122 dst->direct_table = src->direct_table;
2123
afebe2f7
2124 dst->s.obmc_scratchpad = NULL;
2125 ff_h264_pred_init(&dst->hpc, src->s.codec_id);
afebe2f7
2126}
2127
2128/**
2129 * Init context
2130 * Allocate buffers which are not shared amongst multiple threads.
2131 */
2132static int context_init(H264Context *h){
afebe2f7
2133 CHECKED_ALLOCZ(h->top_borders[0], h->s.mb_width * (16+8+8) * sizeof(uint8_t))
2134 CHECKED_ALLOCZ(h->top_borders[1], h->s.mb_width * (16+8+8) * sizeof(uint8_t))
2135
afebe2f7
2136 return 0;
2137fail:
2138 return -1; // free_tables will clean up for us
2139}
2140
98a6fff9 2141static av_cold void common_init(H264Context *h){
0da71265 2142 MpegEncContext * const s = &h->s;
0da71265
MN
2143
2144 s->width = s->avctx->width;
2145 s->height = s->avctx->height;
2146 s->codec_id= s->avctx->codec->id;
115329f1 2147
c92a30bb 2148 ff_h264_pred_init(&h->hpc, s->codec_id);
0da71265 2149
239ea04c 2150 h->dequant_coeff_pps= -1;
9a41c2c7 2151 s->unrestricted_mv=1;
0da71265 2152 s->decode=1; //FIXME
56edbd81
LM
2153
2154 memset(h->pps.scaling_matrix4, 16, 6*16*sizeof(uint8_t));
2155 memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t));
0da71265
MN
2156}
2157
98a6fff9 2158static av_cold int decode_init(AVCodecContext *avctx){
0da71265
MN
2159 H264Context *h= avctx->priv_data;
2160 MpegEncContext * const s = &h->s;
2161
3edcacde 2162 MPV_decode_defaults(s);
115329f1 2163
0da71265
MN
2164 s->avctx = avctx;
2165 common_init(h);
2166
2167 s->out_format = FMT_H264;
2168 s->workaround_bugs= avctx->workaround_bugs;
2169
2170 // set defaults
0da71265 2171// s->decode_mb= ff_h263_decode_mb;
9a5a05d0 2172 s->quarter_sample = 1;
0da71265 2173 s->low_delay= 1;
7a9dba3c
MN
2174
2175 if(avctx->codec_id == CODEC_ID_SVQ3)
2176 avctx->pix_fmt= PIX_FMT_YUVJ420P;
2177 else
1d42f410 2178 avctx->pix_fmt= PIX_FMT_YUV420P;
0da71265 2179
c2212338 2180 decode_init_vlc();
115329f1 2181
26165f99
MR
2182 if(avctx->extradata_size > 0 && avctx->extradata &&
2183 *(char *)avctx->extradata == 1){
4770b1b4
RT
2184 h->is_avc = 1;
2185 h->got_avcC = 0;
26165f99
MR
2186 } else {
2187 h->is_avc = 0;
4770b1b4
RT
2188 }
2189
afebe2f7 2190 h->thread_context[0] = h;
18c7be65 2191 h->outputed_poc = INT_MIN;
0da71265
MN
2192 return 0;
2193}
2194
af8aa846 2195static int frame_start(H264Context *h){
0da71265
MN
2196 MpegEncContext * const s = &h->s;
2197 int i;
2198
af8aa846
MN
2199 if(MPV_frame_start(s, s->avctx) < 0)
2200 return -1;
0da71265 2201 ff_er_frame_start(s);
3a22d7fa
JD
2202 /*
2203 * MPV_frame_start uses pict_type to derive key_frame.
2204 * This is incorrect for H.264; IDR markings must be used.
1412060e 2205 * Zero here; IDR markings per slice in frame or fields are ORed in later.
3a22d7fa
JD
2206 * See decode_nal_units().
2207 */
2208 s->current_picture_ptr->key_frame= 0;
0da71265
MN
2209
2210 assert(s->linesize && s->uvlinesize);
2211
2212 for(i=0; i<16; i++){
2213 h->block_offset[i]= 4*((scan8[i] - scan8[0])&7) + 4*s->linesize*((scan8[i] - scan8[0])>>3);
6867a90b 2214 h->block_offset[24+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->linesize*((scan8[i] - scan8[0])>>3);
0da71265
MN
2215 }
2216 for(i=0; i<4; i++){
2217 h->block_offset[16+i]=
2218 h->block_offset[20+i]= 4*((scan8[i] - scan8[0])&7) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3);
6867a90b
LLL
2219 h->block_offset[24+16+i]=
2220 h->block_offset[24+20+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->uvlinesize*((scan8[i] - scan8[0])>>3);
0da71265
MN
2221 }
2222
934b0821
LM
2223 /* can't be in alloc_tables because linesize isn't known there.
2224 * FIXME: redo bipred weight to not require extra buffer? */
afebe2f7
2225 for(i = 0; i < s->avctx->thread_count; i++)
2226 if(!h->thread_context[i]->s.obmc_scratchpad)
2227 h->thread_context[i]->s.obmc_scratchpad = av_malloc(16*2*s->linesize + 8*2*s->uvlinesize);
5d18eaad
LM
2228
2229 /* some macroblocks will be accessed before they're available */
afebe2f7 2230 if(FRAME_MBAFF || s->avctx->thread_count > 1)
5d18eaad 2231 memset(h->slice_table, -1, (s->mb_height*s->mb_stride-1) * sizeof(uint8_t));
934b0821 2232
0da71265 2233// s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1;
28bb9eb2 2234
1412060e 2235 // We mark the current picture as non-reference after allocating it, so
28bb9eb2
MN
2236 // that if we break out due to an error it can be released automatically
2237 // in the next MPV_frame_start().
2238 // SVQ3 as well as most other codecs have only last/next/current and thus
2239 // get released even with set reference, besides SVQ3 and others do not
2240 // mark frames as reference later "naturally".
2241 if(s->codec_id != CODEC_ID_SVQ3)
2242 s->current_picture_ptr->reference= 0;
357282c6
MN
2243
2244 s->current_picture_ptr->field_poc[0]=
2245 s->current_picture_ptr->field_poc[1]= INT_MAX;
5118c6c7 2246 assert(s->current_picture_ptr->long_ref==0);
357282c6 2247
af8aa846 2248 return 0;
0da71265
MN
2249}
2250
93cc10fa 2251static 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
2252 MpegEncContext * const s = &h->s;
2253 int i;
5f7f9719
MN
2254 int step = 1;
2255 int offset = 1;
2256 int uvoffset= 1;
2257 int top_idx = 1;
2258 int skiplast= 0;
115329f1 2259
53c05b1e
MN
2260 src_y -= linesize;
2261 src_cb -= uvlinesize;
2262 src_cr -= uvlinesize;
2263
5f7f9719
MN
2264 if(!simple && FRAME_MBAFF){
2265 if(s->mb_y&1){
2266 offset = MB_MBAFF ? 1 : 17;
2267 uvoffset= MB_MBAFF ? 1 : 9;
2268 if(!MB_MBAFF){
2269 *(uint64_t*)(h->top_borders[0][s->mb_x]+ 0)= *(uint64_t*)(src_y + 15*linesize);
2270 *(uint64_t*)(h->top_borders[0][s->mb_x]+ 8)= *(uint64_t*)(src_y +8+15*linesize);
2271 if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2272 *(uint64_t*)(h->top_borders[0][s->mb_x]+16)= *(uint64_t*)(src_cb+7*uvlinesize);
2273 *(uint64_t*)(h->top_borders[0][s->mb_x]+24)= *(uint64_t*)(src_cr+7*uvlinesize);
2274 }
2275 }
2276 }else{
2277 if(!MB_MBAFF){
2278 h->left_border[0]= h->top_borders[0][s->mb_x][15];
2279 if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2280 h->left_border[34 ]= h->top_borders[0][s->mb_x][16+7 ];
2281 h->left_border[34+18]= h->top_borders[0][s->mb_x][16+8+7];
2282 }
2283 skiplast= 1;
2284 }
2285 offset =
2286 uvoffset=
2287 top_idx = MB_MBAFF ? 0 : 1;
2288 }
2289 step= MB_MBAFF ? 2 : 1;
2290 }
2291
3b66c4c5 2292 // There are two lines saved, the line above the the top macroblock of a pair,
6867a90b 2293 // and the line above the bottom macroblock
5f7f9719
MN
2294 h->left_border[offset]= h->top_borders[top_idx][s->mb_x][15];
2295 for(i=1; i<17 - skiplast; i++){
2296 h->left_border[offset+i*step]= src_y[15+i* linesize];
53c05b1e 2297 }
115329f1 2298
5f7f9719
MN
2299 *(uint64_t*)(h->top_borders[top_idx][s->mb_x]+0)= *(uint64_t*)(src_y + 16*linesize);
2300 *(uint64_t*)(h->top_borders[top_idx][s->mb_x]+8)= *(uint64_t*)(src_y +8+16*linesize);
53c05b1e 2301
87352549 2302 if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
5f7f9719
MN
2303 h->left_border[uvoffset+34 ]= h->top_borders[top_idx][s->mb_x][16+7];
2304 h->left_border[uvoffset+34+18]= h->top_borders[top_idx][s->mb_x][24+7];
2305 for(i=1; i<9 - skiplast; i++){
2306 h->left_border[uvoffset+34 +i*step]= src_cb[7+i*uvlinesize];
2307 h->left_border[uvoffset+34+18+i*step]= src_cr[7+i*uvlinesize];
53c05b1e 2308 }
5f7f9719
MN
2309 *(uint64_t*)(h->top_borders[top_idx][s->mb_x]+16)= *(uint64_t*)(src_cb+8*uvlinesize);
2310 *(uint64_t*)(h->top_borders[top_idx][s->mb_x]+24)= *(uint64_t*)(src_cr+8*uvlinesize);
53c05b1e
MN
2311 }
2312}
2313
93cc10fa 2314static 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
2315 MpegEncContext * const s = &h->s;
2316 int temp8, i;
2317 uint64_t temp64;
b69378e2
2318 int deblock_left;
2319 int deblock_top;
2320 int mb_xy;
5f7f9719
MN
2321 int step = 1;
2322 int offset = 1;
2323 int uvoffset= 1;
2324 int top_idx = 1;
2325
2326 if(!simple && FRAME_MBAFF){
2327 if(s->mb_y&1){
2328 offset = MB_MBAFF ? 1 : 17;
2329 uvoffset= MB_MBAFF ? 1 : 9;
2330 }else{
2331 offset =
2332 uvoffset=
2333 top_idx = MB_MBAFF ? 0 : 1;
2334 }
2335 step= MB_MBAFF ? 2 : 1;
2336 }
b69378e2
2337
2338 if(h->deblocking_filter == 2) {
64514ee8 2339 mb_xy = h->mb_xy;
b69378e2
2340 deblock_left = h->slice_table[mb_xy] == h->slice_table[mb_xy - 1];
2341 deblock_top = h->slice_table[mb_xy] == h->slice_table[h->top_mb_xy];
2342 } else {
2343 deblock_left = (s->mb_x > 0);
2344 deblock_top = (s->mb_y > 0);
2345 }
53c05b1e
MN
2346
2347 src_y -= linesize + 1;
2348 src_cb -= uvlinesize + 1;
2349 src_cr -= uvlinesize + 1;
2350
2351#define XCHG(a,b,t,xchg)\
2352t= a;\
2353if(xchg)\
2354 a= b;\
2355b= t;
d89dc06a
LM
2356
2357 if(deblock_left){
5f7f9719
MN
2358 for(i = !deblock_top; i<16; i++){
2359 XCHG(h->left_border[offset+i*step], src_y [i* linesize], temp8, xchg);
d89dc06a 2360 }
5f7f9719 2361 XCHG(h->left_border[offset+i*step], src_y [i* linesize], temp8, 1);
d89dc06a
LM
2362 }
2363
2364 if(deblock_top){
5f7f9719
MN
2365 XCHG(*(uint64_t*)(h->top_borders[top_idx][s->mb_x]+0), *(uint64_t*)(src_y +1), temp64, xchg);
2366 XCHG(*(uint64_t*)(h->top_borders[top_idx][s->mb_x]+8), *(uint64_t*)(src_y +9), temp64, 1);
cad4368a 2367 if(s->mb_x+1 < s->mb_width){
5f7f9719 2368 XCHG(*(uint64_t*)(h->top_borders[top_idx][s->mb_x+1]), *(uint64_t*)(src_y +17), temp64, 1);
43efd19a 2369 }
53c05b1e 2370 }
53c05b1e 2371
87352549 2372 if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
d89dc06a 2373 if(deblock_left){
5f7f9719
MN
2374 for(i = !deblock_top; i<8; i++){
2375 XCHG(h->left_border[uvoffset+34 +i*step], src_cb[i*uvlinesize], temp8, xchg);
2376 XCHG(h->left_border[uvoffset+34+18+i*step], src_cr[i*uvlinesize], temp8, xchg);
d89dc06a 2377 }
5f7f9719
MN
2378 XCHG(h->left_border[uvoffset+34 +i*step], src_cb[i*uvlinesize], temp8, 1);
2379 XCHG(h->left_border[uvoffset+34+18+i*step], src_cr[i*uvlinesize], temp8, 1);
d89dc06a
LM
2380 }
2381 if(deblock_top){
5f7f9719
MN
2382 XCHG(*(uint64_t*)(h->top_borders[top_idx][s->mb_x]+16), *(uint64_t*)(src_cb+1), temp64, 1);
2383 XCHG(*(uint64_t*)(h->top_borders[top_idx][s->mb_x]+24), *(uint64_t*)(src_cr+1), temp64, 1);
53c05b1e 2384 }
53c05b1e
MN
2385 }
2386}
2387
5a6a6cc7 2388static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple){
0da71265
MN
2389 MpegEncContext * const s = &h->s;
2390 const int mb_x= s->mb_x;
2391 const int mb_y= s->mb_y;
64514ee8 2392 const int mb_xy= h->mb_xy;
0da71265
MN
2393 const int mb_type= s->current_picture.mb_type[mb_xy];
2394 uint8_t *dest_y, *dest_cb, *dest_cr;
2395 int linesize, uvlinesize /*dct_offset*/;
2396 int i;
6867a90b 2397 int *block_offset = &h->block_offset[0];
6ba71fc4 2398 const unsigned int bottom = mb_y & 1;
bd91fee3 2399 const int transform_bypass = (s->qscale == 0 && h->sps.transform_bypass), is_h264 = (simple || s->codec_id == CODEC_ID_H264);
36940eca 2400 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
ef9d1d15 2401 void (*idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
0da71265 2402
0da71265
MN
2403 dest_y = s->current_picture.data[0] + (mb_y * 16* s->linesize ) + mb_x * 16;
2404 dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
2405 dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
2406
a957c27b
LM
2407 s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + 64, s->linesize, 4);
2408 s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + 64, dest_cr - dest_cb, 2);
2409
bd91fee3 2410 if (!simple && MB_FIELD) {
5d18eaad
LM
2411 linesize = h->mb_linesize = s->linesize * 2;
2412 uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
6867a90b 2413 block_offset = &h->block_offset[24];
1412060e 2414 if(mb_y&1){ //FIXME move out of this function?
0da71265 2415 dest_y -= s->linesize*15;
6867a90b
LLL
2416 dest_cb-= s->uvlinesize*7;
2417 dest_cr-= s->uvlinesize*7;
0da71265 2418 }
5d18eaad
LM
2419 if(FRAME_MBAFF) {
2420 int list;
3425501d 2421 for(list=0; list<h->list_count; list++){
5d18eaad
LM
2422 if(!USES_LIST(mb_type, list))
2423 continue;
2424 if(IS_16X16(mb_type)){
2425 int8_t *ref = &h->ref_cache[list][scan8[0]];
1710856c 2426 fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);
5d18eaad
LM
2427 }else{
2428 for(i=0; i<16; i+=4){
2429 //FIXME can refs be smaller than 8x8 when !direct_8x8_inference ?
2430 int ref = h->ref_cache[list][scan8[i]];
2431 if(ref >= 0)
1710856c 2432 fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);
5d18eaad
LM
2433 }
2434 }
2435 }
2436 }
0da71265 2437 } else {
5d18eaad
LM
2438 linesize = h->mb_linesize = s->linesize;
2439 uvlinesize = h->mb_uvlinesize = s->uvlinesize;
0da71265
MN
2440// dct_offset = s->linesize * 16;
2441 }
115329f1 2442
ef9d1d15
LM
2443 if(transform_bypass){
2444 idct_dc_add =
2445 idct_add = IS_8x8DCT(mb_type) ? s->dsp.add_pixels8 : s->dsp.add_pixels4;
2446 }else if(IS_8x8DCT(mb_type)){
2447 idct_dc_add = s->dsp.h264_idct8_dc_add;
2448 idct_add = s->dsp.h264_idct8_add;
2449 }else{
2450 idct_dc_add = s->dsp.h264_idct_dc_add;
2451 idct_add = s->dsp.h264_idct_add;
2452 }
0da71265 2453
bd91fee3 2454 if (!simple && IS_INTRA_PCM(mb_type)) {
c1708e8d
MN
2455 for (i=0; i<16; i++) {
2456 memcpy(dest_y + i* linesize, h->mb + i*8, 16);
6fbcaaa0 2457 }
c1708e8d
MN
2458 for (i=0; i<8; i++) {
2459 memcpy(dest_cb+ i*uvlinesize, h->mb + 128 + i*4, 8);
2460 memcpy(dest_cr+ i*uvlinesize, h->mb + 160 + i*4, 8);
6fbcaaa0 2461 }
e7e09b49
LLL
2462 } else {
2463 if(IS_INTRA(mb_type)){
5f7f9719 2464 if(h->deblocking_filter)
93cc10fa 2465 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, simple);
53c05b1e 2466
87352549 2467 if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
c92a30bb
KS
2468 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
2469 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
e7e09b49 2470 }
0da71265 2471
e7e09b49 2472 if(IS_INTRA4x4(mb_type)){
bd91fee3 2473 if(simple || !s->encoding){
43efd19a
LM
2474 if(IS_8x8DCT(mb_type)){
2475 for(i=0; i<16; i+=4){
2476 uint8_t * const ptr= dest_y + block_offset[i];
2477 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
ef9d1d15 2478 const int nnz = h->non_zero_count_cache[ scan8[i] ];
c92a30bb 2479 h->hpc.pred8x8l[ dir ](ptr, (h->topleft_samples_available<<i)&0x8000,
4672503d 2480 (h->topright_samples_available<<i)&0x4000, linesize);
ef9d1d15
LM
2481 if(nnz){
2482 if(nnz == 1 && h->mb[i*16])
2483 idct_dc_add(ptr, h->mb + i*16, linesize);
2484 else
2485 idct_add(ptr, h->mb + i*16, linesize);
2486 }
43efd19a
LM
2487 }
2488 }else
e7e09b49 2489 for(i=0; i<16; i++){
6867a90b 2490 uint8_t * const ptr= dest_y + block_offset[i];
e7e09b49
LLL
2491 uint8_t *topright;
2492 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
ef9d1d15 2493 int nnz, tr;
e7e09b49
LLL
2494
2495 if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
2496 const int topright_avail= (h->topright_samples_available<<i)&0x8000;
6867a90b 2497 assert(mb_y || linesize <= block_offset[i]);
e7e09b49
LLL
2498 if(!topright_avail){
2499 tr= ptr[3 - linesize]*0x01010101;
2500 topright= (uint8_t*) &tr;
115329f1 2501 }else
e7e09b49 2502 topright= ptr + 4 - linesize;
a9799653 2503 }else
e7e09b49
LLL
2504 topright= NULL;
2505
c92a30bb 2506 h->hpc.pred4x4[ dir ](ptr, topright, linesize);
ef9d1d15
LM
2507 nnz = h->non_zero_count_cache[ scan8[i] ];
2508 if(nnz){
bd91fee3 2509 if(is_h264){
ef9d1d15
LM
2510 if(nnz == 1 && h->mb[i*16])
2511 idct_dc_add(ptr, h->mb + i*16, linesize);
2512 else
2513 idct_add(ptr, h->mb + i*16, linesize);
2514 }else
e7e09b49
LLL
2515 svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, 0);
2516 }
8b82a956 2517 }
0da71265 2518 }
e7e09b49 2519 }else{
c92a30bb 2520 h->hpc.pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);
bd91fee3 2521 if(is_h264){
36940eca 2522 if(!transform_bypass)
93f0c0a4 2523 h264_luma_dc_dequant_idct_c(h->mb, s->qscale, h->dequant4_coeff[0][s->qscale][0]);
36940eca 2524 }else
e7e09b49 2525 svq3_luma_dc_dequant_idct_c(h->mb, s->qscale);
0da71265 2526 }
5f7f9719 2527 if(h->deblocking_filter)
93cc10fa 2528 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, simple);
bd91fee3 2529 }else if(is_h264){
e7e09b49 2530 hl_motion(h, dest_y, dest_cb, dest_cr,
2833fc46
LM
2531 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
2532 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
e7e09b49 2533 s->dsp.weight_h264_pixels_tab, s->dsp.biweight_h264_pixels_tab);
0da71265 2534 }
e7e09b49
LLL
2535
2536
2537 if(!IS_INTRA4x4(mb_type)){
bd91fee3 2538 if(is_h264){
ef9d1d15
LM
2539 if(IS_INTRA16x16(mb_type)){
2540 for(i=0; i<16; i++){
2541 if(h->non_zero_count_cache[ scan8[i] ])
2542 idct_add(dest_y + block_offset[i], h->mb + i*16, linesize);
2543 else if(h->mb[i*16])
2544 idct_dc_add(dest_y + block_offset[i], h->mb + i*16, linesize);
2545 }
2546 }else{
2547 const int di = IS_8x8DCT(mb_type) ? 4 : 1;
2548 for(i=0; i<16; i+=di){
2549 int nnz = h->non_zero_count_cache[ scan8[i] ];
2550 if(nnz){
2551 if(nnz==1 && h->mb[i*16])
2552 idct_dc_add(dest_y + block_offset[i], h->mb + i*16, linesize);
2553 else
2554 idct_add(dest_y + block_offset[i], h->mb + i*16, linesize);
2555 }
e7e09b49 2556 }
4704097a 2557 }
e7e09b49
LLL
2558 }else{
2559 for(i=0; i<16; i++){
2560 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below
6867a90b 2561 uint8_t * const ptr= dest_y + block_offset[i];
e7e09b49
LLL
2562 svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0);
2563 }
4704097a 2564 }
0da71265
MN
2565 }
2566 }
0da71265 2567
87352549 2568 if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
ef9d1d15
LM
2569 uint8_t *dest[2] = {dest_cb, dest_cr};
2570 if(transform_bypass){
2571 idct_add = idct_dc_add = s->dsp.add_pixels4;
2572 }else{
2573 idct_add = s->dsp.h264_idct_add;
2574 idct_dc_add = s->dsp.h264_idct_dc_add;
4691a77d
2575 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]);
2576 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 2577 }
bd91fee3 2578 if(is_h264){
ef9d1d15
LM
2579 for(i=16; i<16+8; i++){
2580 if(h->non_zero_count_cache[ scan8[i] ])
2581 idct_add(dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize);
2582 else if(h->mb[i*16])
2583 idct_dc_add(dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize);
4704097a 2584 }
e7e09b49 2585 }else{
ef9d1d15 2586 for(i=16; i<16+8; i++){
e7e09b49 2587 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
ef9d1d15 2588 uint8_t * const ptr= dest[(i&4)>>2] + block_offset[i];
e7e09b49
LLL
2589 svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2);
2590 }
4704097a 2591 }
0da71265
MN
2592 }
2593 }
2594 }
53c05b1e 2595 if(h->deblocking_filter) {
5f7f9719
MN
2596 backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, simple);
2597 fill_caches(h, mb_type, 1); //FIXME don't fill stuff which isn't used by filter_mb
2598 h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.qscale_table[mb_xy]);
2599 h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.qscale_table[mb_xy]);
bd91fee3 2600 if (!simple && FRAME_MBAFF) {
5f7f9719 2601 filter_mb (h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
6ba71fc4 2602 } else {
3e20143e 2603 filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
6ba71fc4 2604 }
53c05b1e 2605 }
0da71265
MN
2606}
2607
0da71265 2608/**
bd91fee3
AS
2609 * Process a macroblock; this case avoids checks for expensive uncommon cases.
2610 */
2611static void hl_decode_mb_simple(H264Context *h){
2612 hl_decode_mb_internal(h, 1);
2613}
2614
2615/**
2616 * Process a macroblock; this handles edge cases, such as interlacing.
2617 */
2618static void av_noinline hl_decode_mb_complex(H264Context *h){
2619 hl_decode_mb_internal(h, 0);
2620}
2621
2622static void hl_decode_mb(H264Context *h){
2623 MpegEncContext * const s = &h->s;
64514ee8 2624 const int mb_xy= h->mb_xy;
bd91fee3 2625 const int mb_type= s->current_picture.mb_type[mb_xy];
58cc7dd9
AS
2626 int is_complex = FRAME_MBAFF || MB_FIELD || IS_INTRA_PCM(mb_type) || s->codec_id != CODEC_ID_H264 ||
2627 (ENABLE_GRAY && (s->flags&CODEC_FLAG_GRAY)) || (ENABLE_H264_ENCODER && s->encoding) || ENABLE_SMALL;
bd91fee3 2628
fedec603 2629 if(ENABLE_H264_ENCODER && !s->decode)
bd91fee3
AS
2630 return;
2631
2632 if (is_complex)
2633 hl_decode_mb_complex(h);
2634 else hl_decode_mb_simple(h);
2635}
2636
2143b118 2637static void pic_as_field(Picture *pic, const int parity){
11cc1d8c
JD
2638 int i;
2639 for (i = 0; i < 4; ++i) {
2143b118 2640 if (parity == PICT_BOTTOM_FIELD)
11cc1d8c 2641 pic->data[i] += pic->linesize[i];
2143b118 2642 pic->reference = parity;
11cc1d8c
JD
2643 pic->linesize[i] *= 2;
2644 }
2879c75f 2645 pic->poc= pic->field_poc[parity == PICT_BOTTOM_FIELD];
11cc1d8c
JD
2646}
2647
2648static int split_field_copy(Picture *dest, Picture *src,
2649 int parity, int id_add){
2650 int match = !!(src->reference & parity);
2651
2652 if (match) {
2653 *dest = *src;
d4f7d838 2654 if(parity != PICT_FRAME){
b3e93fd4
MN
2655 pic_as_field(dest, parity);
2656 dest->pic_id *= 2;
2657 dest->pic_id += id_add;
d4f7d838 2658 }
11cc1d8c
JD
2659 }
2660
2661 return match;
2662}
2663
d4f7d838
MN
2664static int build_def_list(Picture *def, Picture **in, int len, int is_long, int sel){
2665 int i[2]={0};
2666 int index=0;
11cc1d8c 2667
d4f7d838
MN
2668 while(i[0]<len || i[1]<len){
2669 while(i[0]<len && !(in[ i[0] ] && (in[ i[0] ]->reference & sel)))
2670 i[0]++;
2671 while(i[1]<len && !(in[ i[1] ] && (in[ i[1] ]->reference & (sel^3))))
2672 i[1]++;
2673 if(i[0] < len){
2674 in[ i[0] ]->pic_id= is_long ? i[0] : in[ i[0] ]->frame_num;
2675 split_field_copy(&def[index++], in[ i[0]++ ], sel , 1);
2676 }
2677 if(i[1] < len){
2678 in[ i[1] ]->pic_id= is_long ? i[1] : in[ i[1] ]->frame_num;
2679 split_field_copy(&def[index++], in[ i[1]++ ], sel^3, 0);
11cc1d8c
JD
2680 }
2681 }
2682
d4f7d838 2683 return index;
11cc1d8c
JD
2684}
2685
d4f7d838
MN
2686static int add_sorted(Picture **sorted, Picture **src, int len, int limit, int dir){
2687 int i, best_poc;
2688 int out_i= 0;
11cc1d8c 2689
d4f7d838
MN
2690 for(;;){
2691 best_poc= dir ? INT_MIN : INT_MAX;
11cc1d8c 2692
d4f7d838
MN
2693 for(i=0; i<len; i++){
2694 const int poc= src[i]->poc;
2695 if(((poc > limit) ^ dir) && ((poc < best_poc) ^ dir)){
2696 best_poc= poc;
2697 sorted[out_i]= src[i];
2698 }
2699 }
2700 if(best_poc == (dir ? INT_MIN : INT_MAX))
2701 break;
2702 limit= sorted[out_i++]->poc - dir;
2703 }
2704 return out_i;
11cc1d8c
JD
2705}
2706
bd91fee3 2707/**
0da71265
MN
2708 * fills the default_ref_list.
2709 */
2710static int fill_default_ref_list(H264Context *h){
2711 MpegEncContext * const s = &h->s;
d4f7d838 2712 int i, len;
115329f1 2713
9f5c1037 2714 if(h->slice_type_nos==FF_B_TYPE){
d4f7d838
MN
2715 Picture *sorted[32];
2716 int cur_poc, list;
2717 int lens[2];
11cc1d8c 2718
d4f7d838
MN
2719 if(FIELD_PICTURE)
2720 cur_poc= s->current_picture_ptr->field_poc[ s->picture_structure == PICT_BOTTOM_FIELD ];
2721 else
2722 cur_poc= s->current_picture_ptr->poc;
086acdd5 2723
d4f7d838
MN
2724 for(list= 0; list<2; list++){
2725 len= add_sorted(sorted , h->short_ref, h->short_ref_count, cur_poc, 1^list);
2726 len+=add_sorted(sorted+len, h->short_ref, h->short_ref_count, cur_poc, 0^list);
2727 assert(len<=32);
2728 len= build_def_list(h->default_ref_list[list] , sorted , len, 0, s->picture_structure);
2729 len+=build_def_list(h->default_ref_list[list]+len, h->long_ref, 16 , 1, s->picture_structure);
2730 assert(len<=32);
086acdd5 2731
d4f7d838
MN
2732 if(len < h->ref_count[list])
2733 memset(&h->default_ref_list[list][len], 0, sizeof(Picture)*(h->ref_count[list] - len));
2734 lens[list]= len;
086acdd5
JD
2735 }
2736
d4f7d838
MN
2737 if(lens[0] == lens[1] && lens[1] > 1){
2738 for(i=0; h->default_ref_list[0][i].data[0] == h->default_ref_list[1][i].data[0] && i<lens[0]; i++);
2739 if(i == lens[0])
2740 FFSWAP(Picture, h->default_ref_list[1][0], h->default_ref_list[1][1]);
086acdd5 2741 }
086acdd5 2742 }else{
d4f7d838
MN
2743 len = build_def_list(h->default_ref_list[0] , h->short_ref, h->short_ref_count, 0, s->picture_structure);
2744 len+= build_def_list(h->default_ref_list[0]+len, h-> long_ref, 16 , 1, s->picture_structure);
2745 assert(len <= 32);
2746 if(len < h->ref_count[0])
2747 memset(&h->default_ref_list[0][len], 0, sizeof(Picture)*(h->ref_count[0] - len));
0da71265 2748 }
827c91bf
LLL
2749#ifdef TRACE
2750 for (i=0; i<h->ref_count[0]; i++) {
a9c9a240 2751 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 2752 }
9f5c1037 2753 if(h->slice_type_nos==FF_B_TYPE){
827c91bf 2754 for (i=0; i<h->ref_count[1]; i++) {
ffbc5e04 2755 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
2756 }
2757 }
2758#endif
0da71265
MN
2759 return 0;
2760}
2761
827c91bf
LLL
2762static void print_short_term(H264Context *h);
2763static void print_long_term(H264Context *h);
2764
949da388
JD
2765/**
2766 * Extract structure information about the picture described by pic_num in
2767 * the current decoding context (frame or field). Note that pic_num is
2768 * picture number without wrapping (so, 0<=pic_num<max_pic_num).
2769 * @param pic_num picture number for which to extract structure information
2770 * @param structure one of PICT_XXX describing structure of picture
2771 * with pic_num
2772 * @return frame number (short term) or long term index of picture
2773 * described by pic_num
2774 */
2775static int pic_num_extract(H264Context *h, int pic_num, int *structure){
2776 MpegEncContext * const s = &h->s;
2777
2778 *structure = s->picture_structure;
2779 if(FIELD_PICTURE){
2780 if (!(pic_num & 1))
2781 /* opposite field */
2782 *structure ^= PICT_FRAME;
2783 pic_num >>= 1;
2784 }
2785
2786 return pic_num;
2787}
2788
0da71265
MN
2789static int decode_ref_pic_list_reordering(H264Context *h){
2790 MpegEncContext * const s = &h->s;
949da388 2791 int list, index, pic_structure;
115329f1 2792
827c91bf
LLL
2793 print_short_term(h);
2794 print_long_term(h);
115329f1 2795
3425501d 2796 for(list=0; list<h->list_count; list++){
0da71265
MN
2797 memcpy(h->ref_list[list], h->default_ref_list[list], sizeof(Picture)*h->ref_count[list]);
2798
2799 if(get_bits1(&s->gb)){
2800 int pred= h->curr_pic_num;
0da71265
MN
2801
2802 for(index=0; ; index++){
88e7a4d1
MN
2803 unsigned int reordering_of_pic_nums_idc= get_ue_golomb(&s->gb);
2804 unsigned int pic_id;
0da71265 2805 int i;
2f944356 2806 Picture *ref = NULL;
115329f1
DB
2807
2808 if(reordering_of_pic_nums_idc==3)
0bc42cad 2809 break;
115329f1 2810
0da71265 2811 if(index >= h->ref_count[list]){
9b879566 2812 av_log(h->s.avctx, AV_LOG_ERROR, "reference count overflow\n");
0da71265
MN
2813 return -1;
2814 }
115329f1 2815
0da71265
MN
2816 if(reordering_of_pic_nums_idc<3){
2817 if(reordering_of_pic_nums_idc<2){
88e7a4d1 2818 const unsigned int abs_diff_pic_num= get_ue_golomb(&s->gb) + 1;
949da388 2819 int frame_num;
0da71265 2820
03d3cab8 2821 if(abs_diff_pic_num > h->max_pic_num){
9b879566 2822 av_log(h->s.avctx, AV_LOG_ERROR, "abs_diff_pic_num overflow\n");
0da71265
MN
2823 return -1;
2824 }
2825
2826 if(reordering_of_pic_nums_idc == 0) pred-= abs_diff_pic_num;
2827 else pred+= abs_diff_pic_num;
2828 pred &= h->max_pic_num - 1;
115329f1 2829
949da388
JD
2830 frame_num = pic_num_extract(h, pred, &pic_structure);
2831
0d175622
MN
2832 for(i= h->short_ref_count-1; i>=0; i--){
2833 ref = h->short_ref[i];
949da388 2834 assert(ref->reference);
0d175622 2835 assert(!ref->long_ref);
6edac8e1 2836 if(
af8c5e08
MN
2837 ref->frame_num == frame_num &&
2838 (ref->reference & pic_structure)
6edac8e1 2839 )
0da71265
MN
2840 break;
2841 }
0d175622 2842 if(i>=0)
949da388 2843 ref->pic_id= pred;
0da71265 2844 }else{
949da388 2845 int long_idx;
0da71265 2846 pic_id= get_ue_golomb(&s->gb); //long_term_pic_idx
949da388
JD
2847
2848 long_idx= pic_num_extract(h, pic_id, &pic_structure);
2849
2850 if(long_idx>31){
88e7a4d1
MN
2851 av_log(h->s.avctx, AV_LOG_ERROR, "long_term_pic_idx overflow\n");
2852 return -1;
2853 }
949da388
JD
2854 ref = h->long_ref[long_idx];
2855 assert(!(ref && !ref->reference));
af8c5e08 2856 if(ref && (ref->reference & pic_structure)){
ac658be5 2857 ref->pic_id= pic_id;
ac658be5
FOL
2858 assert(ref->long_ref);
2859 i=0;
2860 }else{
2861 i=-1;
2862 }
0da71265
MN
2863 }
2864
0d315f28 2865 if (i < 0) {
9b879566 2866 av_log(h->s.avctx, AV_LOG_ERROR, "reference picture missing during reorder\n");
0da71265 2867 memset(&h->ref_list[list][index], 0, sizeof(Picture)); //FIXME
0d175622
MN
2868 } else {
2869 for(i=index; i+1<h->ref_count[list]; i++){
2870 if(ref->long_ref == h->ref_list[list][i].long_ref && ref->pic_id == h->ref_list[list][i].pic_id)
2871 break;
21be92bf
MN
2872 }
2873 for(; i > index; i--){
2874 h->ref_list[list][i]= h->ref_list[list][i-1];
2875 }
0d175622 2876 h->ref_list[list][index]= *ref;
949da388 2877 if (FIELD_PICTURE){
2143b118 2878 pic_as_field(&h->ref_list[list][index], pic_structure);
949da388 2879 }
0da71265 2880 }
0bc42cad 2881 }else{
9b879566 2882 av_log(h->s.avctx, AV_LOG_ERROR, "illegal reordering_of_pic_nums_idc\n");
0da71265
MN
2883 return -1;
2884 }
2885 }
2886 }
0da71265 2887 }
3425501d 2888 for(list=0; list<h->list_count; list++){
6ab87211 2889 for(index= 0; index < h->ref_count[list]; index++){
79b5c776
MN
2890 if(!h->ref_list[list][index].data[0]){
2891 av_log(h->s.avctx, AV_LOG_ERROR, "Missing reference picture\n");
2892 h->ref_list[list][index]= s->current_picture; //FIXME this is not a sensible solution
2893 }
6ab87211 2894 }
6ab87211 2895 }
115329f1 2896
9f5c1037 2897 if(h->slice_type_nos==FF_B_TYPE && !h->direct_spatial_mv_pred)
5ad984c9 2898 direct_dist_scale_factor(h);
2f944356 2899 direct_ref_list_init(h);
115329f1 2900 return 0;
0da71265
MN
2901}
2902
91c58c94 2903static void fill_mbaff_ref_list(H264Context *h){
5d18eaad 2904 int list, i, j;
3425501d 2905 for(list=0; list<2; list++){ //FIXME try list_count
5d18eaad
LM
2906 for(i=0; i<h->ref_count[list]; i++){
2907 Picture *frame = &h->ref_list[list][i];
2908 Picture *field = &h->ref_list[list][16+2*i];
2909 field[0] = *frame;
2910 for(j=0; j<3; j++)
2911 field[0].linesize[j] <<= 1;
2143b118 2912 field[0].reference = PICT_TOP_FIELD;
5d18eaad
LM
2913 field[1] = field[0];
2914 for(j=0; j<3; j++)
2915 field[1].data[j] += frame->linesize[j];
2143b118 2916 field[1].reference = PICT_BOTTOM_FIELD;
5d18eaad
LM
2917
2918 h->luma_weight[list][16+2*i] = h->luma_weight[list][16+2*i+1] = h->luma_weight[list][i];
2919 h->luma_offset[list][16+2*i] = h->luma_offset[list][16+2*i+1] = h->luma_offset[list][i];
2920 for(j=0; j<2; j++){
2921 h->chroma_weight[list][16+2*i][j] = h->chroma_weight[list][16+2*i+1][j] = h->chroma_weight[list][i][j];
2922 h->chroma_offset[list][16+2*i][j] = h->chroma_offset[list][16+2*i+1][j] = h->chroma_offset[list][i][j];
2923 }
2924 }
2925 }
2926 for(j=0; j<h->ref_count[1]; j++){
2927 for(i=0; i<h->ref_count[0]; i++)
2928 h->implicit_weight[j][16+2*i] = h->implicit_weight[j][16+2*i+1] = h->implicit_weight[j][i];
2929 memcpy(h->implicit_weight[16+2*j], h->implicit_weight[j], sizeof(*h->implicit_weight));
2930 memcpy(h->implicit_weight[16+2*j+1], h->implicit_weight[j], sizeof(*h->implicit_weight));
2931 }
2932}
2933
0da71265
MN
2934static int pred_weight_table(H264Context *h){
2935 MpegEncContext * const s = &h->s;
2936 int list, i;
9f2d1b4f 2937 int luma_def, chroma_def;
115329f1 2938
9f2d1b4f
LM
2939 h->use_weight= 0;
2940 h->use_weight_chroma= 0;
0da71265
MN
2941 h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
2942 h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
9f2d1b4f
LM
2943 luma_def = 1<<h->luma_log2_weight_denom;
2944 chroma_def = 1<<h->chroma_log2_weight_denom;
0da71265
MN
2945
2946 for(list=0; list<2; list++){
2947 for(i=0; i<h->ref_count[list]; i++){
2948 int luma_weight_flag, chroma_weight_flag;
115329f1 2949
0da71265
MN
2950 luma_weight_flag= get_bits1(&s->gb);
2951 if(luma_weight_flag){
2952 h->luma_weight[list][i]= get_se_golomb(&s->gb);
2953 h->luma_offset[list][i]= get_se_golomb(&s->gb);
9f2d1b4f
LM
2954 if( h->luma_weight[list][i] != luma_def
2955 || h->luma_offset[list][i] != 0)
2956 h->use_weight= 1;
2957 }else{
2958 h->luma_weight[list][i]= luma_def;
2959 h->luma_offset[list][i]= 0;
0da71265
MN
2960 }
2961
0af6967e 2962 if(CHROMA){
fef744d4
MN
2963 chroma_weight_flag= get_bits1(&s->gb);
2964 if(chroma_weight_flag){
2965 int j;
2966 for(j=0; j<2; j++){
2967 h->chroma_weight[list][i][j]= get_se_golomb(&s->gb);
2968 h->chroma_offset[list][i][j]= get_se_golomb(&s->gb);
2969 if( h->chroma_weight[list][i][j] != chroma_def
2970 || h->chroma_offset[list][i][j] != 0)
2971 h->use_weight_chroma= 1;
2972 }
2973 }else{
2974 int j;
2975 for(j=0; j<2; j++){
2976 h->chroma_weight[list][i][j]= chroma_def;
2977 h->chroma_offset[list][i][j]= 0;
2978 }
0da71265
MN
2979 }
2980 }
2981 }
9f5c1037 2982 if(h->slice_type_nos != FF_B_TYPE) break;
0da71265 2983 }
9f2d1b4f 2984 h->use_weight= h->use_weight || h->use_weight_chroma;
0da71265
MN
2985 return 0;
2986}
2987
9f2d1b4f
LM
2988static void implicit_weight_table(H264Context *h){
2989 MpegEncContext * const s = &h->s;
9f2d1b4f
LM
2990 int ref0, ref1;
2991 int cur_poc = s->current_picture_ptr->poc;
2992
2993 if( h->ref_count[0] == 1 && h->ref_count[1] == 1
2994 && h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){
2995 h->use_weight= 0;
2996 h->use_weight_chroma= 0;
2997 return;
2998 }
2999
3000 h->use_weight= 2;
3001 h->use_weight_chroma= 2;
3002 h->luma_log2_weight_denom= 5;
3003 h->chroma_log2_weight_denom= 5;
3004
9f2d1b4f
LM
3005 for(ref0=0; ref0 < h->ref_count[0]; ref0++){
3006 int poc0 = h->ref_list[0][ref0].poc;
3007 for(ref1=0; ref1 < h->ref_count[1]; ref1++){
738386a5 3008 int poc1 = h->ref_list[1][ref1].poc;
f66e4f5f 3009 int td = av_clip(poc1 - poc0, -128, 127);
9f2d1b4f 3010 if(td){
f66e4f5f 3011 int tb = av_clip(cur_poc - poc0, -128, 127);
c26abfa5 3012 int tx = (16384 + (FFABS(td) >> 1)) / td;
f66e4f5f 3013 int dist_scale_factor = av_clip((tb*tx + 32) >> 6, -1024, 1023) >> 2;
9f2d1b4f
LM
3014 if(dist_scale_factor < -64 || dist_scale_factor > 128)
3015 h->implicit_weight[ref0][ref1] = 32;
3016 else
3017 h->implicit_weight[ref0][ref1] = 64 - dist_scale_factor;
3018 }else
3019 h->implicit_weight[ref0][ref1] = 32;
3020 }
3021 }
3022}
3023
8fd57a66
JD
3024/**
3025 * Mark a picture as no longer needed for reference. The refmask
3026 * argument allows unreferencing of individual fields or the whole frame.
3027 * If the picture becomes entirely unreferenced, but is being held for
3028 * display purposes, it is marked as such.
3029 * @param refmask mask of fields to unreference; the mask is bitwise
3030 * anded with the reference marking of pic
3031 * @return non-zero if pic becomes entirely unreferenced (except possibly
3032 * for display purposes) zero if one of the fields remains in
3033 * reference
3034 */
3035static inline int unreference_pic(H264Context *h, Picture *pic, int refmask){
4e4d983e 3036 int i;
8fd57a66
JD
3037 if (pic->reference &= refmask) {
3038 return 0;
3039 } else {
79f4494a
MN
3040 for(i = 0; h->delayed_pic[i]; i++)
3041 if(pic == h->delayed_pic[i]){
3042 pic->reference=DELAYED_PIC_REF;
3043 break;
3044 }
8fd57a66
JD
3045 return 1;
3046 }
4e4d983e
LM
3047}
3048
0da71265 3049/**
5175b937 3050 * instantaneous decoder refresh.
0da71265
MN
3051 */
3052static void idr(H264Context *h){
4e4d983e 3053 int i;
0da71265 3054
dc032f33 3055 for(i=0; i<16; i++){
9c0e4624 3056 remove_long(h, i, 0);
0da71265 3057 }
849b9cef 3058 assert(h->long_ref_count==0);
0da71265
MN
3059
3060 for(i=0; i<h->short_ref_count; i++){
8fd57a66 3061 unreference_pic(h, h->short_ref[i], 0);
0da71265
MN
3062 h->short_ref[i]= NULL;
3063 }
3064 h->short_ref_count=0;
a149c1a5 3065 h->prev_frame_num= 0;
80f8e035
MN
3066 h->prev_frame_num_offset= 0;
3067 h->prev_poc_msb=
3068 h->prev_poc_lsb= 0;
0da71265
MN
3069}
3070
7c33ad19
LM
3071/* forget old pics after a seek */
3072static void flush_dpb(AVCodecContext *avctx){
3073 H264Context *h= avctx->priv_data;
3074 int i;
64b9d48f 3075 for(i=0; i<MAX_DELAYED_PIC_COUNT; i++) {
285b570f
LM
3076 if(h->delayed_pic[i])
3077 h->delayed_pic[i]->reference= 0;
7c33ad19 3078 h->delayed_pic[i]= NULL;
285b570f 3079 }
df8a7dff 3080 h->outputed_poc= INT_MIN;
7c33ad19 3081 idr(h);
ca159196
MR
3082 if(h->s.current_picture_ptr)
3083 h->s.current_picture_ptr->reference= 0;
12d96de3 3084 h->s.first_field= 0;
e240f898 3085 ff_mpeg_flush(avctx);
7c33ad19
LM
3086}
3087
0da71265 3088/**
47e112f8
JD
3089 * Find a Picture in the short term reference list by frame number.
3090 * @param frame_num frame number to search for
3091 * @param idx the index into h->short_ref where returned picture is found
3092 * undefined if no picture found.
3093 * @return pointer to the found picture, or NULL if no pic with the provided
3094 * frame number is found
0da71265 3095 */
47e112f8 3096static Picture * find_short(H264Context *h, int frame_num, int *idx){
1924f3ce 3097 MpegEncContext * const s = &h->s;
0da71265 3098 int i;
115329f1 3099
0da71265
MN
3100 for(i=0; i<h->short_ref_count; i++){
3101 Picture *pic= h->short_ref[i];
1924f3ce 3102 if(s->avctx->debug&FF_DEBUG_MMCO)
9b879566 3103 av_log(h->s.avctx, AV_LOG_DEBUG, "%d %d %p\n", i, pic->frame_num, pic);
47e112f8
JD
3104 if(pic->frame_num == frame_num) {
3105 *idx = i;
0da71265
MN
3106 return pic;
3107 }
3108 }
3109 return NULL;
3110}
3111
3112/**
47e112f8
JD
3113 * Remove a picture from the short term reference list by its index in
3114 * that list. This does no checking on the provided index; it is assumed
3115 * to be valid. Other list entries are shifted down.
3116 * @param i index into h->short_ref of picture to remove.
3117 */
3118static void remove_short_at_index(H264Context *h, int i){
e1f15d38 3119 assert(i >= 0 && i < h->short_ref_count);
47e112f8
JD
3120 h->short_ref[i]= NULL;
3121 if (--h->short_ref_count)
3122 memmove(&h->short_ref[i], &h->short_ref[i+1], (h->short_ref_count - i)*sizeof(Picture*));
3123}
3124
3125/**
3126 *
3127 * @return the removed picture or NULL if an error occurs
3128 */
d9e32422 3129static Picture * remove_short(H264Context *h, int frame_num, int ref_mask){
47e112f8
JD
3130 MpegEncContext * const s = &h->s;
3131 Picture *pic;
3132 int i;
3133
3134 if(s->avctx->debug&FF_DEBUG_MMCO)
3135 av_log(h->s.avctx, AV_LOG_DEBUG, "remove short %d count %d\n", frame_num, h->short_ref_count);
3136
3137 pic = find_short(h, frame_num, &i);
d9e32422
MN
3138 if (pic){
3139 if(unreference_pic(h, pic, ref_mask))
47e112f8 3140 remove_short_at_index(h, i);
d9e32422 3141 }
47e112f8
JD
3142
3143 return pic;
3144}
3145
3146/**
24231e4c 3147 * Remove a picture from the long term reference list by its index in
1cea5d0d 3148 * that list.
3b66c4c5 3149 * @return the removed picture or NULL if an error occurs
0da71265 3150 */
9c0e4624 3151static Picture * remove_long(H264Context *h, int i, int ref_mask){
0da71265
MN
3152 Picture *pic;
3153
0da71265 3154 pic= h->long_ref[i];
1cea5d0d 3155 if (pic){
9c0e4624
MN
3156 if(unreference_pic(h, pic, ref_mask)){
3157 assert(h->long_ref[i]->long_ref == 1);
3158 h->long_ref[i]->long_ref= 0;
3159 h->long_ref[i]= NULL;
3160 h->long_ref_count--;
3161 }
1cea5d0d 3162 }
0da71265
MN
3163
3164 return pic;
3165}
3166
3167/**
827c91bf
LLL
3168 * print short term list
3169 */
3170static void print_short_term(H264Context *h) {
3171 uint32_t i;
3172 if(h->s.avctx->debug&FF_DEBUG_MMCO) {
3173 av_log(h->s.avctx, AV_LOG_DEBUG, "short term list:\n");
3174 for(i=0; i<h->short_ref_count; i++){
3175 Picture *pic= h->short_ref[i];
3176 av_log(h->s.avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n", i, pic->frame_num, pic->poc, pic->data[0]);
3177 }
3178 }
3179}
3180
3181/**
3182 * print long term list
3183 */
3184static void print_long_term(H264Context *h) {
3185 uint32_t i;
3186 if(h->s.avctx->debug&FF_DEBUG_MMCO) {
3187 av_log(h->s.avctx, AV_LOG_DEBUG, "long term list:\n");
3188 for(i = 0; i < 16; i++){
3189 Picture *pic= h->long_ref[i];
3190 if (pic) {
3191 av_log(h->s.avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n", i, pic->frame_num, pic->poc, pic->data[0]);
3192 }
3193 }
3194 }
3195}
3196
3197/**
0da71265
MN
3198 * Executes the reference picture marking (memory management control operations).
3199 */
3200static int execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
3201 MpegEncContext * const s = &h->s;
827c91bf 3202 int i, j;
d3d8c02b 3203 int current_ref_assigned=0;
0da71265 3204 Picture *pic;
115329f1 3205
0da71265 3206 if((s->avctx->debug&FF_DEBUG_MMCO) && mmco_count==0)
9b879566 3207 av_log(h->s.avctx, AV_LOG_DEBUG, "no mmco here\n");
115329f1 3208
0da71265 3209 for(i=0; i<mmco_count; i++){
9296f5d8 3210 int structure, frame_num;
0da71265 3211 if(s->avctx->debug&FF_DEBUG_MMCO)
0d0447ea 3212 av_log(h->s.avctx, AV_LOG_DEBUG, "mmco:%d %d %d\n", h->mmco[i].opcode, h->mmco[i].short_pic_num, h->mmco[i].long_arg);
0da71265 3213
472c9a58
MN
3214 if( mmco[i].opcode == MMCO_SHORT2UNUSED
3215 || mmco[i].opcode == MMCO_SHORT2LONG){
3216 frame_num = pic_num_extract(h, mmco[i].short_pic_num, &structure);