h264: skip start code search if the size of the nal unit is known
[libav.git] / libavcodec / h264.c
1 /*
2 * H.26L/H.264/AVC/JVT/14496-10/... decoder
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
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
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * H.264 / AVC / MPEG4 part10 codec.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28 #include "libavutil/imgutils.h"
29 #include "internal.h"
30 #include "dsputil.h"
31 #include "avcodec.h"
32 #include "mpegvideo.h"
33 #include "h264.h"
34 #include "h264data.h"
35 #include "h264_mvpred.h"
36 #include "golomb.h"
37 #include "mathops.h"
38 #include "rectangle.h"
39 #include "thread.h"
40 #include "vdpau_internal.h"
41 #include "libavutil/avassert.h"
42
43 #include "cabac.h"
44
45 //#undef NDEBUG
46 #include <assert.h>
47
48 static const uint8_t rem6[QP_MAX_NUM+1]={
49 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, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3,
50 };
51
52 static const uint8_t div6[QP_MAX_NUM+1]={
53 0, 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, 8, 8, 9, 9, 9, 9, 9, 9,10,10,10,10,
54 };
55
56 static const enum PixelFormat hwaccel_pixfmt_list_h264_jpeg_420[] = {
57 PIX_FMT_DXVA2_VLD,
58 PIX_FMT_VAAPI_VLD,
59 PIX_FMT_VDA_VLD,
60 PIX_FMT_YUVJ420P,
61 PIX_FMT_NONE
62 };
63
64 /**
65 * Check if the top & left blocks are available if needed and
66 * change the dc mode so it only uses the available blocks.
67 */
68 int ff_h264_check_intra4x4_pred_mode(H264Context *h){
69 MpegEncContext * const s = &h->s;
70 static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0};
71 static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED};
72 int i;
73
74 if(!(h->top_samples_available&0x8000)){
75 for(i=0; i<4; i++){
76 int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ];
77 if(status<0){
78 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);
79 return -1;
80 } else if(status){
81 h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
82 }
83 }
84 }
85
86 if((h->left_samples_available&0x8888)!=0x8888){
87 static const int mask[4]={0x8000,0x2000,0x80,0x20};
88 for(i=0; i<4; i++){
89 if(!(h->left_samples_available&mask[i])){
90 int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ];
91 if(status<0){
92 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);
93 return -1;
94 } else if(status){
95 h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status;
96 }
97 }
98 }
99 }
100
101 return 0;
102 } //FIXME cleanup like ff_h264_check_intra_pred_mode
103
104 /**
105 * Check if the top & left blocks are available if needed and
106 * change the dc mode so it only uses the available blocks.
107 */
108 int ff_h264_check_intra_pred_mode(H264Context *h, int mode){
109 MpegEncContext * const s = &h->s;
110 static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
111 static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
112
113 if(mode > 6U) {
114 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);
115 return -1;
116 }
117
118 if(!(h->top_samples_available&0x8000)){
119 mode= top[ mode ];
120 if(mode<0){
121 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);
122 return -1;
123 }
124 }
125
126 if((h->left_samples_available&0x8080) != 0x8080){
127 mode= left[ mode ];
128 if(h->left_samples_available&0x8080){ //mad cow disease mode, aka MBAFF + constrained_intra_pred
129 mode= ALZHEIMER_DC_L0T_PRED8x8 + (!(h->left_samples_available&0x8000)) + 2*(mode == DC_128_PRED8x8);
130 }
131 if(mode<0){
132 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);
133 return -1;
134 }
135 }
136
137 return mode;
138 }
139
140 const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src,
141 int *dst_length, int *consumed, int length,
142 int nalsize_known)
143 {
144 int i, si, di;
145 uint8_t *dst;
146 int bufidx;
147
148 // src[0]&0x80; //forbidden bit
149 h->nal_ref_idc= src[0]>>5;
150 h->nal_unit_type= src[0]&0x1F;
151
152 src++; length--;
153
154 if (nalsize_known) {
155 i = length;
156 } else
157 #if HAVE_FAST_UNALIGNED
158 # if HAVE_FAST_64BIT
159 # define RS 7
160 for(i=0; i+1<length; i+=9){
161 if(!((~AV_RN64A(src+i) & (AV_RN64A(src+i) - 0x0100010001000101ULL)) & 0x8000800080008080ULL))
162 # else
163 # define RS 3
164 for(i=0; i+1<length; i+=5){
165 if(!((~AV_RN32A(src+i) & (AV_RN32A(src+i) - 0x01000101U)) & 0x80008080U))
166 # endif
167 continue;
168 if(i>0 && !src[i]) i--;
169 while(src[i]) i++;
170 #else
171 # define RS 0
172 for(i=0; i+1<length; i+=2){
173 if(src[i]) continue;
174 if(i>0 && src[i-1]==0) i--;
175 #endif
176 if(i+2<length && src[i+1]==0 && src[i+2]<=3){
177 if(src[i+2]!=3){
178 /* startcode, so we must be past the end */
179 length=i;
180 }
181 break;
182 }
183 i-= RS;
184 }
185
186 if(i>=length-1){ //no escaped 0
187 *dst_length= length;
188 *consumed= length+1; //+1 for the header
189 return src;
190 }
191
192 bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data
193 av_fast_malloc(&h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length+FF_INPUT_BUFFER_PADDING_SIZE);
194 dst= h->rbsp_buffer[bufidx];
195
196 if (dst == NULL){
197 return NULL;
198 }
199
200 //printf("decoding esc\n");
201 memcpy(dst, src, i);
202 si=di=i;
203 while(si+2<length){
204 //remove escapes (very rare 1:2^22)
205 if(src[si+2]>3){
206 dst[di++]= src[si++];
207 dst[di++]= src[si++];
208 }else if(src[si]==0 && src[si+1]==0){
209 if(src[si+2]==3){ //escape
210 dst[di++]= 0;
211 dst[di++]= 0;
212 si+=3;
213 continue;
214 }else //next start code
215 goto nsc;
216 }
217
218 dst[di++]= src[si++];
219 }
220 while(si<length)
221 dst[di++]= src[si++];
222 nsc:
223
224 memset(dst+di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
225
226 *dst_length= di;
227 *consumed= si + 1;//+1 for the header
228 //FIXME store exact number of bits in the getbitcontext (it is needed for decoding)
229 return dst;
230 }
231
232 /**
233 * Identify the exact end of the bitstream
234 * @return the length of the trailing, or 0 if damaged
235 */
236 static int ff_h264_decode_rbsp_trailing(H264Context *h, const uint8_t *src){
237 int v= *src;
238 int r;
239
240 tprintf(h->s.avctx, "rbsp trailing %X\n", v);
241
242 for(r=1; r<9; r++){
243 if(v&1) return r;
244 v>>=1;
245 }
246 return 0;
247 }
248
249 static inline int get_lowest_part_list_y(H264Context *h, Picture *pic, int n, int height,
250 int y_offset, int list){
251 int raw_my= h->mv_cache[list][ scan8[n] ][1];
252 int filter_height= (raw_my&3) ? 2 : 0;
253 int full_my= (raw_my>>2) + y_offset;
254 int top = full_my - filter_height, bottom = full_my + height + filter_height;
255
256 return FFMAX(abs(top), bottom);
257 }
258
259 static inline void get_lowest_part_y(H264Context *h, int refs[2][48], int n, int height,
260 int y_offset, int list0, int list1, int *nrefs){
261 MpegEncContext * const s = &h->s;
262 int my;
263
264 y_offset += 16*(s->mb_y >> MB_FIELD);
265
266 if(list0){
267 int ref_n = h->ref_cache[0][ scan8[n] ];
268 Picture *ref= &h->ref_list[0][ref_n];
269
270 // Error resilience puts the current picture in the ref list.
271 // Don't try to wait on these as it will cause a deadlock.
272 // Fields can wait on each other, though.
273 if (ref->f.thread_opaque != s->current_picture.f.thread_opaque ||
274 (ref->f.reference & 3) != s->picture_structure) {
275 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 0);
276 if (refs[0][ref_n] < 0) nrefs[0] += 1;
277 refs[0][ref_n] = FFMAX(refs[0][ref_n], my);
278 }
279 }
280
281 if(list1){
282 int ref_n = h->ref_cache[1][ scan8[n] ];
283 Picture *ref= &h->ref_list[1][ref_n];
284
285 if (ref->f.thread_opaque != s->current_picture.f.thread_opaque ||
286 (ref->f.reference & 3) != s->picture_structure) {
287 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 1);
288 if (refs[1][ref_n] < 0) nrefs[1] += 1;
289 refs[1][ref_n] = FFMAX(refs[1][ref_n], my);
290 }
291 }
292 }
293
294 /**
295 * Wait until all reference frames are available for MC operations.
296 *
297 * @param h the H264 context
298 */
299 static void await_references(H264Context *h){
300 MpegEncContext * const s = &h->s;
301 const int mb_xy= h->mb_xy;
302 const int mb_type = s->current_picture.f.mb_type[mb_xy];
303 int refs[2][48];
304 int nrefs[2] = {0};
305 int ref, list;
306
307 memset(refs, -1, sizeof(refs));
308
309 if(IS_16X16(mb_type)){
310 get_lowest_part_y(h, refs, 0, 16, 0,
311 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
312 }else if(IS_16X8(mb_type)){
313 get_lowest_part_y(h, refs, 0, 8, 0,
314 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
315 get_lowest_part_y(h, refs, 8, 8, 8,
316 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
317 }else if(IS_8X16(mb_type)){
318 get_lowest_part_y(h, refs, 0, 16, 0,
319 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
320 get_lowest_part_y(h, refs, 4, 16, 0,
321 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
322 }else{
323 int i;
324
325 assert(IS_8X8(mb_type));
326
327 for(i=0; i<4; i++){
328 const int sub_mb_type= h->sub_mb_type[i];
329 const int n= 4*i;
330 int y_offset= (i&2)<<2;
331
332 if(IS_SUB_8X8(sub_mb_type)){
333 get_lowest_part_y(h, refs, n , 8, y_offset,
334 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
335 }else if(IS_SUB_8X4(sub_mb_type)){
336 get_lowest_part_y(h, refs, n , 4, y_offset,
337 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
338 get_lowest_part_y(h, refs, n+2, 4, y_offset+4,
339 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
340 }else if(IS_SUB_4X8(sub_mb_type)){
341 get_lowest_part_y(h, refs, n , 8, y_offset,
342 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
343 get_lowest_part_y(h, refs, n+1, 8, y_offset,
344 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
345 }else{
346 int j;
347 assert(IS_SUB_4X4(sub_mb_type));
348 for(j=0; j<4; j++){
349 int sub_y_offset= y_offset + 2*(j&2);
350 get_lowest_part_y(h, refs, n+j, 4, sub_y_offset,
351 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
352 }
353 }
354 }
355 }
356
357 for(list=h->list_count-1; list>=0; list--){
358 for(ref=0; ref<48 && nrefs[list]; ref++){
359 int row = refs[list][ref];
360 if(row >= 0){
361 Picture *ref_pic = &h->ref_list[list][ref];
362 int ref_field = ref_pic->f.reference - 1;
363 int ref_field_picture = ref_pic->field_picture;
364 int pic_height = 16*s->mb_height >> ref_field_picture;
365
366 row <<= MB_MBAFF;
367 nrefs[list]--;
368
369 if(!FIELD_PICTURE && ref_field_picture){ // frame referencing two fields
370 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN((row >> 1) - !(row&1), pic_height-1), 1);
371 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN((row >> 1) , pic_height-1), 0);
372 }else if(FIELD_PICTURE && !ref_field_picture){ // field referencing one field of a frame
373 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row*2 + ref_field , pic_height-1), 0);
374 }else if(FIELD_PICTURE){
375 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row, pic_height-1), ref_field);
376 }else{
377 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row, pic_height-1), 0);
378 }
379 }
380 }
381 }
382 }
383
384 #if 0
385 /**
386 * DCT transforms the 16 dc values.
387 * @param qp quantization parameter ??? FIXME
388 */
389 static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
390 // const int qmul= dequant_coeff[qp][0];
391 int i;
392 int temp[16]; //FIXME check if this is a good idea
393 static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
394 static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
395
396 for(i=0; i<4; i++){
397 const int offset= y_offset[i];
398 const int z0= block[offset+stride*0] + block[offset+stride*4];
399 const int z1= block[offset+stride*0] - block[offset+stride*4];
400 const int z2= block[offset+stride*1] - block[offset+stride*5];
401 const int z3= block[offset+stride*1] + block[offset+stride*5];
402
403 temp[4*i+0]= z0+z3;
404 temp[4*i+1]= z1+z2;
405 temp[4*i+2]= z1-z2;
406 temp[4*i+3]= z0-z3;
407 }
408
409 for(i=0; i<4; i++){
410 const int offset= x_offset[i];
411 const int z0= temp[4*0+i] + temp[4*2+i];
412 const int z1= temp[4*0+i] - temp[4*2+i];
413 const int z2= temp[4*1+i] - temp[4*3+i];
414 const int z3= temp[4*1+i] + temp[4*3+i];
415
416 block[stride*0 +offset]= (z0 + z3)>>1;
417 block[stride*2 +offset]= (z1 + z2)>>1;
418 block[stride*8 +offset]= (z1 - z2)>>1;
419 block[stride*10+offset]= (z0 - z3)>>1;
420 }
421 }
422 #endif
423
424 #undef xStride
425 #undef stride
426
427 #if 0
428 static void chroma_dc_dct_c(DCTELEM *block){
429 const int stride= 16*2;
430 const int xStride= 16;
431 int a,b,c,d,e;
432
433 a= block[stride*0 + xStride*0];
434 b= block[stride*0 + xStride*1];
435 c= block[stride*1 + xStride*0];
436 d= block[stride*1 + xStride*1];
437
438 e= a-b;
439 a= a+b;
440 b= c-d;
441 c= c+d;
442
443 block[stride*0 + xStride*0]= (a+c);
444 block[stride*0 + xStride*1]= (e+b);
445 block[stride*1 + xStride*0]= (a-c);
446 block[stride*1 + xStride*1]= (e-b);
447 }
448 #endif
449
450 static av_always_inline void
451 mc_dir_part(H264Context *h, Picture *pic, int n, int square,
452 int height, int delta, int list,
453 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
454 int src_x_offset, int src_y_offset,
455 qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op,
456 int pixel_shift, int chroma_idc)
457 {
458 MpegEncContext * const s = &h->s;
459 const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8;
460 int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8;
461 const int luma_xy= (mx&3) + ((my&3)<<2);
462 int offset = ((mx>>2) << pixel_shift) + (my>>2)*h->mb_linesize;
463 uint8_t * src_y = pic->f.data[0] + offset;
464 uint8_t * src_cb, * src_cr;
465 int extra_width= h->emu_edge_width;
466 int extra_height= h->emu_edge_height;
467 int emu=0;
468 const int full_mx= mx>>2;
469 const int full_my= my>>2;
470 const int pic_width = 16*s->mb_width;
471 const int pic_height = 16*s->mb_height >> MB_FIELD;
472 int ysh;
473
474 if(mx&7) extra_width -= 3;
475 if(my&7) extra_height -= 3;
476
477 if( full_mx < 0-extra_width
478 || full_my < 0-extra_height
479 || full_mx + 16/*FIXME*/ > pic_width + extra_width
480 || full_my + 16/*FIXME*/ > pic_height + extra_height){
481 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_y - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
482 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
483 src_y= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
484 emu=1;
485 }
486
487 qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); //FIXME try variable height perhaps?
488 if(!square){
489 qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize);
490 }
491
492 if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return;
493
494 if(chroma_idc == 3 /* yuv444 */){
495 src_cb = pic->f.data[1] + offset;
496 if(emu){
497 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cb - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
498 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
499 src_cb= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
500 }
501 qpix_op[luma_xy](dest_cb, src_cb, h->mb_linesize); //FIXME try variable height perhaps?
502 if(!square){
503 qpix_op[luma_xy](dest_cb + delta, src_cb + delta, h->mb_linesize);
504 }
505
506 src_cr = pic->f.data[2] + offset;
507 if(emu){
508 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cr - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
509 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
510 src_cr= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
511 }
512 qpix_op[luma_xy](dest_cr, src_cr, h->mb_linesize); //FIXME try variable height perhaps?
513 if(!square){
514 qpix_op[luma_xy](dest_cr + delta, src_cr + delta, h->mb_linesize);
515 }
516 return;
517 }
518
519 ysh = 3 - (chroma_idc == 2 /* yuv422 */);
520 if(chroma_idc == 1 /* yuv420 */ && MB_FIELD){
521 // chroma offset when predicting from a field of opposite parity
522 my += 2 * ((s->mb_y & 1) - (pic->f.reference - 1));
523 emu |= (my>>3) < 0 || (my>>3) + 8 >= (pic_height>>1);
524 }
525
526 src_cb = pic->f.data[1] + ((mx >> 3) << pixel_shift) + (my >> ysh) * h->mb_uvlinesize;
527 src_cr = pic->f.data[2] + ((mx >> 3) << pixel_shift) + (my >> ysh) * h->mb_uvlinesize;
528
529 if(emu){
530 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cb, h->mb_uvlinesize,
531 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
532 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
533 src_cb= s->edge_emu_buffer;
534 }
535 chroma_op(dest_cb, src_cb, h->mb_uvlinesize, height >> (chroma_idc == 1 /* yuv420 */),
536 mx&7, (my << (chroma_idc == 2 /* yuv422 */)) &7);
537
538 if(emu){
539 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cr, h->mb_uvlinesize,
540 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
541 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
542 src_cr= s->edge_emu_buffer;
543 }
544 chroma_op(dest_cr, src_cr, h->mb_uvlinesize, height >> (chroma_idc == 1 /* yuv420 */),
545 mx&7, (my << (chroma_idc == 2 /* yuv422 */)) &7);
546 }
547
548 static av_always_inline void
549 mc_part_std(H264Context *h, int n, int square, int height, int delta,
550 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
551 int x_offset, int y_offset,
552 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
553 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
554 int list0, int list1, int pixel_shift, int chroma_idc)
555 {
556 MpegEncContext * const s = &h->s;
557 qpel_mc_func *qpix_op= qpix_put;
558 h264_chroma_mc_func chroma_op= chroma_put;
559
560 dest_y += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
561 if (chroma_idc == 3 /* yuv444 */) {
562 dest_cb += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
563 dest_cr += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
564 } else if (chroma_idc == 2 /* yuv422 */) {
565 dest_cb += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
566 dest_cr += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
567 } else /* yuv420 */ {
568 dest_cb += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
569 dest_cr += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
570 }
571 x_offset += 8*s->mb_x;
572 y_offset += 8*(s->mb_y >> MB_FIELD);
573
574 if(list0){
575 Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ];
576 mc_dir_part(h, ref, n, square, height, delta, 0,
577 dest_y, dest_cb, dest_cr, x_offset, y_offset,
578 qpix_op, chroma_op, pixel_shift, chroma_idc);
579
580 qpix_op= qpix_avg;
581 chroma_op= chroma_avg;
582 }
583
584 if(list1){
585 Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ];
586 mc_dir_part(h, ref, n, square, height, delta, 1,
587 dest_y, dest_cb, dest_cr, x_offset, y_offset,
588 qpix_op, chroma_op, pixel_shift, chroma_idc);
589 }
590 }
591
592 static av_always_inline void
593 mc_part_weighted(H264Context *h, int n, int square, int height, int delta,
594 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
595 int x_offset, int y_offset,
596 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
597 h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op,
598 h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg,
599 int list0, int list1, int pixel_shift, int chroma_idc){
600 MpegEncContext * const s = &h->s;
601 int chroma_height;
602
603 dest_y += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
604 if (chroma_idc == 3 /* yuv444 */) {
605 chroma_height = height;
606 chroma_weight_avg = luma_weight_avg;
607 chroma_weight_op = luma_weight_op;
608 dest_cb += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
609 dest_cr += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
610 } else if (chroma_idc == 2 /* yuv422 */) {
611 chroma_height = height;
612 dest_cb += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
613 dest_cr += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
614 } else /* yuv420 */ {
615 chroma_height = height >> 1;
616 dest_cb += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
617 dest_cr += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
618 }
619 x_offset += 8*s->mb_x;
620 y_offset += 8*(s->mb_y >> MB_FIELD);
621
622 if(list0 && list1){
623 /* don't optimize for luma-only case, since B-frames usually
624 * use implicit weights => chroma too. */
625 uint8_t *tmp_cb = s->obmc_scratchpad;
626 uint8_t *tmp_cr = s->obmc_scratchpad + (16 << pixel_shift);
627 uint8_t *tmp_y = s->obmc_scratchpad + 16*h->mb_uvlinesize;
628 int refn0 = h->ref_cache[0][ scan8[n] ];
629 int refn1 = h->ref_cache[1][ scan8[n] ];
630
631 mc_dir_part(h, &h->ref_list[0][refn0], n, square, height, delta, 0,
632 dest_y, dest_cb, dest_cr,
633 x_offset, y_offset, qpix_put, chroma_put,
634 pixel_shift, chroma_idc);
635 mc_dir_part(h, &h->ref_list[1][refn1], n, square, height, delta, 1,
636 tmp_y, tmp_cb, tmp_cr,
637 x_offset, y_offset, qpix_put, chroma_put,
638 pixel_shift, chroma_idc);
639
640 if(h->use_weight == 2){
641 int weight0 = h->implicit_weight[refn0][refn1][s->mb_y&1];
642 int weight1 = 64 - weight0;
643 luma_weight_avg( dest_y, tmp_y, h-> mb_linesize,
644 height, 5, weight0, weight1, 0);
645 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize,
646 chroma_height, 5, weight0, weight1, 0);
647 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize,
648 chroma_height, 5, weight0, weight1, 0);
649 }else{
650 luma_weight_avg(dest_y, tmp_y, h->mb_linesize, height, h->luma_log2_weight_denom,
651 h->luma_weight[refn0][0][0] , h->luma_weight[refn1][1][0],
652 h->luma_weight[refn0][0][1] + h->luma_weight[refn1][1][1]);
653 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
654 h->chroma_weight[refn0][0][0][0] , h->chroma_weight[refn1][1][0][0],
655 h->chroma_weight[refn0][0][0][1] + h->chroma_weight[refn1][1][0][1]);
656 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
657 h->chroma_weight[refn0][0][1][0] , h->chroma_weight[refn1][1][1][0],
658 h->chroma_weight[refn0][0][1][1] + h->chroma_weight[refn1][1][1][1]);
659 }
660 }else{
661 int list = list1 ? 1 : 0;
662 int refn = h->ref_cache[list][ scan8[n] ];
663 Picture *ref= &h->ref_list[list][refn];
664 mc_dir_part(h, ref, n, square, height, delta, list,
665 dest_y, dest_cb, dest_cr, x_offset, y_offset,
666 qpix_put, chroma_put, pixel_shift, chroma_idc);
667
668 luma_weight_op(dest_y, h->mb_linesize, height, h->luma_log2_weight_denom,
669 h->luma_weight[refn][list][0], h->luma_weight[refn][list][1]);
670 if(h->use_weight_chroma){
671 chroma_weight_op(dest_cb, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
672 h->chroma_weight[refn][list][0][0], h->chroma_weight[refn][list][0][1]);
673 chroma_weight_op(dest_cr, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
674 h->chroma_weight[refn][list][1][0], h->chroma_weight[refn][list][1][1]);
675 }
676 }
677 }
678
679 static av_always_inline void
680 mc_part(H264Context *h, int n, int square, int height, int delta,
681 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
682 int x_offset, int y_offset,
683 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
684 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
685 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
686 int list0, int list1, int pixel_shift, int chroma_idc)
687 {
688 if((h->use_weight==2 && list0 && list1
689 && (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ][h->s.mb_y&1] != 32))
690 || h->use_weight==1)
691 mc_part_weighted(h, n, square, height, delta, dest_y, dest_cb, dest_cr,
692 x_offset, y_offset, qpix_put, chroma_put,
693 weight_op[0], weight_op[1], weight_avg[0],
694 weight_avg[1], list0, list1, pixel_shift, chroma_idc);
695 else
696 mc_part_std(h, n, square, height, delta, dest_y, dest_cb, dest_cr,
697 x_offset, y_offset, qpix_put, chroma_put, qpix_avg,
698 chroma_avg, list0, list1, pixel_shift, chroma_idc);
699 }
700
701 static av_always_inline void
702 prefetch_motion(H264Context *h, int list, int pixel_shift, int chroma_idc)
703 {
704 /* fetch pixels for estimated mv 4 macroblocks ahead
705 * optimized for 64byte cache lines */
706 MpegEncContext * const s = &h->s;
707 const int refn = h->ref_cache[list][scan8[0]];
708 if(refn >= 0){
709 const int mx= (h->mv_cache[list][scan8[0]][0]>>2) + 16*s->mb_x + 8;
710 const int my= (h->mv_cache[list][scan8[0]][1]>>2) + 16*s->mb_y;
711 uint8_t **src = h->ref_list[list][refn].f.data;
712 int off= (mx << pixel_shift) + (my + (s->mb_x&3)*4)*h->mb_linesize + (64 << pixel_shift);
713 s->dsp.prefetch(src[0]+off, s->linesize, 4);
714 if (chroma_idc == 3 /* yuv444 */) {
715 s->dsp.prefetch(src[1]+off, s->linesize, 4);
716 s->dsp.prefetch(src[2]+off, s->linesize, 4);
717 }else{
718 off= ((mx>>1) << pixel_shift) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + (64 << pixel_shift);
719 s->dsp.prefetch(src[1]+off, src[2]-src[1], 2);
720 }
721 }
722 }
723
724 static av_always_inline void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
725 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
726 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
727 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
728 int pixel_shift, int chroma_idc)
729 {
730 MpegEncContext * const s = &h->s;
731 const int mb_xy= h->mb_xy;
732 const int mb_type = s->current_picture.f.mb_type[mb_xy];
733
734 assert(IS_INTER(mb_type));
735
736 if(HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME))
737 await_references(h);
738 prefetch_motion(h, 0, pixel_shift, chroma_idc);
739
740 if(IS_16X16(mb_type)){
741 mc_part(h, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0,
742 qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
743 weight_op, weight_avg,
744 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
745 pixel_shift, chroma_idc);
746 }else if(IS_16X8(mb_type)){
747 mc_part(h, 0, 0, 8, 8 << pixel_shift, dest_y, dest_cb, dest_cr, 0, 0,
748 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
749 weight_op, weight_avg,
750 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
751 pixel_shift, chroma_idc);
752 mc_part(h, 8, 0, 8, 8 << pixel_shift, dest_y, dest_cb, dest_cr, 0, 4,
753 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
754 weight_op, weight_avg,
755 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1),
756 pixel_shift, chroma_idc);
757 }else if(IS_8X16(mb_type)){
758 mc_part(h, 0, 0, 16, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
759 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
760 &weight_op[1], &weight_avg[1],
761 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
762 pixel_shift, chroma_idc);
763 mc_part(h, 4, 0, 16, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
764 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
765 &weight_op[1], &weight_avg[1],
766 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1),
767 pixel_shift, chroma_idc);
768 }else{
769 int i;
770
771 assert(IS_8X8(mb_type));
772
773 for(i=0; i<4; i++){
774 const int sub_mb_type= h->sub_mb_type[i];
775 const int n= 4*i;
776 int x_offset= (i&1)<<2;
777 int y_offset= (i&2)<<1;
778
779 if(IS_SUB_8X8(sub_mb_type)){
780 mc_part(h, n, 1, 8, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset,
781 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
782 &weight_op[1], &weight_avg[1],
783 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
784 pixel_shift, chroma_idc);
785 }else if(IS_SUB_8X4(sub_mb_type)){
786 mc_part(h, n , 0, 4, 4 << pixel_shift, dest_y, dest_cb, dest_cr, x_offset, y_offset,
787 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
788 &weight_op[1], &weight_avg[1],
789 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
790 pixel_shift, chroma_idc);
791 mc_part(h, n+2, 0, 4, 4 << pixel_shift, dest_y, dest_cb, dest_cr, x_offset, y_offset+2,
792 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
793 &weight_op[1], &weight_avg[1],
794 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
795 pixel_shift, chroma_idc);
796 }else if(IS_SUB_4X8(sub_mb_type)){
797 mc_part(h, n , 0, 8, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset,
798 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
799 &weight_op[2], &weight_avg[2],
800 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
801 pixel_shift, chroma_idc);
802 mc_part(h, n+1, 0, 8, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset,
803 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
804 &weight_op[2], &weight_avg[2],
805 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
806 pixel_shift, chroma_idc);
807 }else{
808 int j;
809 assert(IS_SUB_4X4(sub_mb_type));
810 for(j=0; j<4; j++){
811 int sub_x_offset= x_offset + 2*(j&1);
812 int sub_y_offset= y_offset + (j&2);
813 mc_part(h, n+j, 1, 4, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
814 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
815 &weight_op[2], &weight_avg[2],
816 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
817 pixel_shift, chroma_idc);
818 }
819 }
820 }
821 }
822
823 prefetch_motion(h, 1, pixel_shift, chroma_idc);
824 }
825
826 static av_always_inline void
827 hl_motion_420(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
828 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
829 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
830 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
831 int pixel_shift)
832 {
833 hl_motion(h, dest_y, dest_cb, dest_cr, qpix_put, chroma_put,
834 qpix_avg, chroma_avg, weight_op, weight_avg, pixel_shift, 1);
835 }
836
837 static av_always_inline void
838 hl_motion_422(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
839 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
840 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
841 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
842 int pixel_shift)
843 {
844 hl_motion(h, dest_y, dest_cb, dest_cr, qpix_put, chroma_put,
845 qpix_avg, chroma_avg, weight_op, weight_avg, pixel_shift, 2);
846 }
847
848 static void free_tables(H264Context *h, int free_rbsp){
849 int i;
850 H264Context *hx;
851
852 av_freep(&h->intra4x4_pred_mode);
853 av_freep(&h->chroma_pred_mode_table);
854 av_freep(&h->cbp_table);
855 av_freep(&h->mvd_table[0]);
856 av_freep(&h->mvd_table[1]);
857 av_freep(&h->direct_table);
858 av_freep(&h->non_zero_count);
859 av_freep(&h->slice_table_base);
860 h->slice_table= NULL;
861 av_freep(&h->list_counts);
862
863 av_freep(&h->mb2b_xy);
864 av_freep(&h->mb2br_xy);
865
866 for(i = 0; i < MAX_THREADS; i++) {
867 hx = h->thread_context[i];
868 if(!hx) continue;
869 av_freep(&hx->top_borders[1]);
870 av_freep(&hx->top_borders[0]);
871 av_freep(&hx->s.obmc_scratchpad);
872 if (free_rbsp){
873 av_freep(&hx->rbsp_buffer[1]);
874 av_freep(&hx->rbsp_buffer[0]);
875 hx->rbsp_buffer_size[0] = 0;
876 hx->rbsp_buffer_size[1] = 0;
877 }
878 if (i) av_freep(&h->thread_context[i]);
879 }
880 }
881
882 static void init_dequant8_coeff_table(H264Context *h){
883 int i,j,q,x;
884 const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
885
886 for(i=0; i<6; i++ ){
887 h->dequant8_coeff[i] = h->dequant8_buffer[i];
888 for(j=0; j<i; j++){
889 if(!memcmp(h->pps.scaling_matrix8[j], h->pps.scaling_matrix8[i], 64*sizeof(uint8_t))){
890 h->dequant8_coeff[i] = h->dequant8_buffer[j];
891 break;
892 }
893 }
894 if(j<i)
895 continue;
896
897 for(q=0; q<max_qp+1; q++){
898 int shift = div6[q];
899 int idx = rem6[q];
900 for(x=0; x<64; x++)
901 h->dequant8_coeff[i][q][(x>>3)|((x&7)<<3)] =
902 ((uint32_t)dequant8_coeff_init[idx][ dequant8_coeff_init_scan[((x>>1)&12) | (x&3)] ] *
903 h->pps.scaling_matrix8[i][x]) << shift;
904 }
905 }
906 }
907
908 static void init_dequant4_coeff_table(H264Context *h){
909 int i,j,q,x;
910 const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
911 for(i=0; i<6; i++ ){
912 h->dequant4_coeff[i] = h->dequant4_buffer[i];
913 for(j=0; j<i; j++){
914 if(!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], 16*sizeof(uint8_t))){
915 h->dequant4_coeff[i] = h->dequant4_buffer[j];
916 break;
917 }
918 }
919 if(j<i)
920 continue;
921
922 for(q=0; q<max_qp+1; q++){
923 int shift = div6[q] + 2;
924 int idx = rem6[q];
925 for(x=0; x<16; x++)
926 h->dequant4_coeff[i][q][(x>>2)|((x<<2)&0xF)] =
927 ((uint32_t)dequant4_coeff_init[idx][(x&1) + ((x>>2)&1)] *
928 h->pps.scaling_matrix4[i][x]) << shift;
929 }
930 }
931 }
932
933 static void init_dequant_tables(H264Context *h){
934 int i,x;
935 init_dequant4_coeff_table(h);
936 if(h->pps.transform_8x8_mode)
937 init_dequant8_coeff_table(h);
938 if(h->sps.transform_bypass){
939 for(i=0; i<6; i++)
940 for(x=0; x<16; x++)
941 h->dequant4_coeff[i][0][x] = 1<<6;
942 if(h->pps.transform_8x8_mode)
943 for(i=0; i<6; i++)
944 for(x=0; x<64; x++)
945 h->dequant8_coeff[i][0][x] = 1<<6;
946 }
947 }
948
949
950 int ff_h264_alloc_tables(H264Context *h){
951 MpegEncContext * const s = &h->s;
952 const int big_mb_num= s->mb_stride * (s->mb_height+1);
953 const int row_mb_num= 2*s->mb_stride*s->avctx->thread_count;
954 int x,y;
955
956 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->intra4x4_pred_mode, row_mb_num * 8 * sizeof(uint8_t), fail)
957
958 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->non_zero_count , big_mb_num * 48 * sizeof(uint8_t), fail)
959 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->slice_table_base , (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base), fail)
960 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->cbp_table, big_mb_num * sizeof(uint16_t), fail)
961
962 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t), fail)
963 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[0], 16*row_mb_num * sizeof(uint8_t), fail);
964 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[1], 16*row_mb_num * sizeof(uint8_t), fail);
965 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->direct_table, 4*big_mb_num * sizeof(uint8_t) , fail);
966 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->list_counts, big_mb_num * sizeof(uint8_t), fail)
967
968 memset(h->slice_table_base, -1, (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base));
969 h->slice_table= h->slice_table_base + s->mb_stride*2 + 1;
970
971 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2b_xy , big_mb_num * sizeof(uint32_t), fail);
972 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2br_xy , big_mb_num * sizeof(uint32_t), fail);
973 for(y=0; y<s->mb_height; y++){
974 for(x=0; x<s->mb_width; x++){
975 const int mb_xy= x + y*s->mb_stride;
976 const int b_xy = 4*x + 4*y*h->b_stride;
977
978 h->mb2b_xy [mb_xy]= b_xy;
979 h->mb2br_xy[mb_xy]= 8*(FMO ? mb_xy : (mb_xy % (2*s->mb_stride)));
980 }
981 }
982
983 s->obmc_scratchpad = NULL;
984
985 if(!h->dequant4_coeff[0])
986 init_dequant_tables(h);
987
988 return 0;
989 fail:
990 free_tables(h, 1);
991 return -1;
992 }
993
994 /**
995 * Mimic alloc_tables(), but for every context thread.
996 */
997 static void clone_tables(H264Context *dst, H264Context *src, int i){
998 MpegEncContext * const s = &src->s;
999 dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i*8*2*s->mb_stride;
1000 dst->non_zero_count = src->non_zero_count;
1001 dst->slice_table = src->slice_table;
1002 dst->cbp_table = src->cbp_table;
1003 dst->mb2b_xy = src->mb2b_xy;
1004 dst->mb2br_xy = src->mb2br_xy;
1005 dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
1006 dst->mvd_table[0] = src->mvd_table[0] + i*8*2*s->mb_stride;
1007 dst->mvd_table[1] = src->mvd_table[1] + i*8*2*s->mb_stride;
1008 dst->direct_table = src->direct_table;
1009 dst->list_counts = src->list_counts;
1010
1011 dst->s.obmc_scratchpad = NULL;
1012 ff_h264_pred_init(&dst->hpc, src->s.codec_id, src->sps.bit_depth_luma, src->sps.chroma_format_idc);
1013 }
1014
1015 /**
1016 * Init context
1017 * Allocate buffers which are not shared amongst multiple threads.
1018 */
1019 static int context_init(H264Context *h){
1020 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[0], h->s.mb_width * 16*3 * sizeof(uint8_t)*2, fail)
1021 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[1], h->s.mb_width * 16*3 * sizeof(uint8_t)*2, fail)
1022
1023 h->ref_cache[0][scan8[5 ]+1] = h->ref_cache[0][scan8[7 ]+1] = h->ref_cache[0][scan8[13]+1] =
1024 h->ref_cache[1][scan8[5 ]+1] = h->ref_cache[1][scan8[7 ]+1] = h->ref_cache[1][scan8[13]+1] = PART_NOT_AVAILABLE;
1025
1026 return 0;
1027 fail:
1028 return -1; // free_tables will clean up for us
1029 }
1030
1031 static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size);
1032
1033 static av_cold void common_init(H264Context *h){
1034 MpegEncContext * const s = &h->s;
1035
1036 s->width = s->avctx->width;
1037 s->height = s->avctx->height;
1038 s->codec_id= s->avctx->codec->id;
1039
1040 ff_h264dsp_init(&h->h264dsp, 8, 1);
1041 ff_h264_pred_init(&h->hpc, s->codec_id, 8, 1);
1042
1043 h->dequant_coeff_pps= -1;
1044 s->unrestricted_mv=1;
1045
1046 dsputil_init(&s->dsp, s->avctx); // needed so that idct permutation is known early
1047
1048 memset(h->pps.scaling_matrix4, 16, 6*16*sizeof(uint8_t));
1049 memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t));
1050 }
1051
1052 int ff_h264_decode_extradata(H264Context *h)
1053 {
1054 AVCodecContext *avctx = h->s.avctx;
1055
1056 if(avctx->extradata[0] == 1){
1057 int i, cnt, nalsize;
1058 unsigned char *p = avctx->extradata;
1059
1060 h->is_avc = 1;
1061
1062 if(avctx->extradata_size < 7) {
1063 av_log(avctx, AV_LOG_ERROR, "avcC too short\n");
1064 return -1;
1065 }
1066 /* sps and pps in the avcC always have length coded with 2 bytes,
1067 so put a fake nal_length_size = 2 while parsing them */
1068 h->nal_length_size = 2;
1069 // Decode sps from avcC
1070 cnt = *(p+5) & 0x1f; // Number of sps
1071 p += 6;
1072 for (i = 0; i < cnt; i++) {
1073 nalsize = AV_RB16(p) + 2;
1074 if (p - avctx->extradata + nalsize > avctx->extradata_size)
1075 return -1;
1076 if(decode_nal_units(h, p, nalsize) < 0) {
1077 av_log(avctx, AV_LOG_ERROR, "Decoding sps %d from avcC failed\n", i);
1078 return -1;
1079 }
1080 p += nalsize;
1081 }
1082 // Decode pps from avcC
1083 cnt = *(p++); // Number of pps
1084 for (i = 0; i < cnt; i++) {
1085 nalsize = AV_RB16(p) + 2;
1086 if (p - avctx->extradata + nalsize > avctx->extradata_size)
1087 return -1;
1088 if (decode_nal_units(h, p, nalsize) < 0) {
1089 av_log(avctx, AV_LOG_ERROR, "Decoding pps %d from avcC failed\n", i);
1090 return -1;
1091 }
1092 p += nalsize;
1093 }
1094 // Now store right nal length size, that will be use to parse all other nals
1095 h->nal_length_size = (avctx->extradata[4] & 0x03) + 1;
1096 } else {
1097 h->is_avc = 0;
1098 if(decode_nal_units(h, avctx->extradata, avctx->extradata_size) < 0)
1099 return -1;
1100 }
1101 return 0;
1102 }
1103
1104 av_cold int ff_h264_decode_init(AVCodecContext *avctx){
1105 H264Context *h= avctx->priv_data;
1106 MpegEncContext * const s = &h->s;
1107 int i;
1108
1109 MPV_decode_defaults(s);
1110
1111 s->avctx = avctx;
1112 common_init(h);
1113
1114 s->out_format = FMT_H264;
1115 s->workaround_bugs= avctx->workaround_bugs;
1116
1117 // set defaults
1118 // s->decode_mb= ff_h263_decode_mb;
1119 s->quarter_sample = 1;
1120 if(!avctx->has_b_frames)
1121 s->low_delay= 1;
1122
1123 avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
1124
1125 ff_h264_decode_init_vlc();
1126
1127 h->pixel_shift = 0;
1128 h->sps.bit_depth_luma = avctx->bits_per_raw_sample = 8;
1129
1130 h->thread_context[0] = h;
1131 h->outputed_poc = h->next_outputed_poc = INT_MIN;
1132 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
1133 h->last_pocs[i] = INT_MIN;
1134 h->prev_poc_msb= 1<<16;
1135 h->x264_build = -1;
1136 ff_h264_reset_sei(h);
1137 if(avctx->codec_id == CODEC_ID_H264){
1138 if(avctx->ticks_per_frame == 1){
1139 s->avctx->time_base.den *=2;
1140 }
1141 avctx->ticks_per_frame = 2;
1142 }
1143
1144 if(avctx->extradata_size > 0 && avctx->extradata &&
1145 ff_h264_decode_extradata(h))
1146 return -1;
1147
1148 if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames < h->sps.num_reorder_frames){
1149 s->avctx->has_b_frames = h->sps.num_reorder_frames;
1150 s->low_delay = 0;
1151 }
1152
1153 return 0;
1154 }
1155
1156 #define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b)+(size))))
1157 static void copy_picture_range(Picture **to, Picture **from, int count, MpegEncContext *new_base, MpegEncContext *old_base)
1158 {
1159 int i;
1160
1161 for (i=0; i<count; i++){
1162 assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) ||
1163 IN_RANGE(from[i], old_base->picture, sizeof(Picture) * old_base->picture_count) ||
1164 !from[i]));
1165 to[i] = REBASE_PICTURE(from[i], new_base, old_base);
1166 }
1167 }
1168
1169 static void copy_parameter_set(void **to, void **from, int count, int size)
1170 {
1171 int i;
1172
1173 for (i=0; i<count; i++){
1174 if (to[i] && !from[i]) av_freep(&to[i]);
1175 else if (from[i] && !to[i]) to[i] = av_malloc(size);
1176
1177 if (from[i]) memcpy(to[i], from[i], size);
1178 }
1179 }
1180
1181 static int decode_init_thread_copy(AVCodecContext *avctx){
1182 H264Context *h= avctx->priv_data;
1183
1184 if (!avctx->internal->is_copy)
1185 return 0;
1186 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1187 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
1188
1189 return 0;
1190 }
1191
1192 #define copy_fields(to, from, start_field, end_field) memcpy(&to->start_field, &from->start_field, (char*)&to->end_field - (char*)&to->start_field)
1193 static int decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src){
1194 H264Context *h= dst->priv_data, *h1= src->priv_data;
1195 MpegEncContext * const s = &h->s, * const s1 = &h1->s;
1196 int inited = s->context_initialized, err;
1197 int i;
1198
1199 if(dst == src || !s1->context_initialized) return 0;
1200
1201 err = ff_mpeg_update_thread_context(dst, src);
1202 if(err) return err;
1203
1204 //FIXME handle width/height changing
1205 if(!inited){
1206 for(i = 0; i < MAX_SPS_COUNT; i++)
1207 av_freep(h->sps_buffers + i);
1208
1209 for(i = 0; i < MAX_PPS_COUNT; i++)
1210 av_freep(h->pps_buffers + i);
1211
1212 memcpy(&h->s + 1, &h1->s + 1, sizeof(H264Context) - sizeof(MpegEncContext)); //copy all fields after MpegEnc
1213 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1214 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
1215 if (ff_h264_alloc_tables(h) < 0) {
1216 av_log(dst, AV_LOG_ERROR, "Could not allocate memory for h264\n");
1217 return AVERROR(ENOMEM);
1218 }
1219 context_init(h);
1220
1221 for(i=0; i<2; i++){
1222 h->rbsp_buffer[i] = NULL;
1223 h->rbsp_buffer_size[i] = 0;
1224 }
1225
1226 h->thread_context[0] = h;
1227
1228 // frame_start may not be called for the next thread (if it's decoding a bottom field)
1229 // so this has to be allocated here
1230 h->s.obmc_scratchpad = av_malloc(16*6*s->linesize);
1231
1232 s->dsp.clear_blocks(h->mb);
1233 s->dsp.clear_blocks(h->mb+(24*16<<h->pixel_shift));
1234 }
1235
1236 //extradata/NAL handling
1237 h->is_avc = h1->is_avc;
1238
1239 //SPS/PPS
1240 copy_parameter_set((void**)h->sps_buffers, (void**)h1->sps_buffers, MAX_SPS_COUNT, sizeof(SPS));
1241 h->sps = h1->sps;
1242 copy_parameter_set((void**)h->pps_buffers, (void**)h1->pps_buffers, MAX_PPS_COUNT, sizeof(PPS));
1243 h->pps = h1->pps;
1244
1245 //Dequantization matrices
1246 //FIXME these are big - can they be only copied when PPS changes?
1247 copy_fields(h, h1, dequant4_buffer, dequant4_coeff);
1248
1249 for(i=0; i<6; i++)
1250 h->dequant4_coeff[i] = h->dequant4_buffer[0] + (h1->dequant4_coeff[i] - h1->dequant4_buffer[0]);
1251
1252 for(i=0; i<6; i++)
1253 h->dequant8_coeff[i] = h->dequant8_buffer[0] + (h1->dequant8_coeff[i] - h1->dequant8_buffer[0]);
1254
1255 h->dequant_coeff_pps = h1->dequant_coeff_pps;
1256
1257 //POC timing
1258 copy_fields(h, h1, poc_lsb, redundant_pic_count);
1259
1260 //reference lists
1261 copy_fields(h, h1, ref_count, list_count);
1262 copy_fields(h, h1, ref_list, intra_gb);
1263 copy_fields(h, h1, short_ref, cabac_init_idc);
1264
1265 copy_picture_range(h->short_ref, h1->short_ref, 32, s, s1);
1266 copy_picture_range(h->long_ref, h1->long_ref, 32, s, s1);
1267 copy_picture_range(h->delayed_pic, h1->delayed_pic, MAX_DELAYED_PIC_COUNT+2, s, s1);
1268
1269 h->last_slice_type = h1->last_slice_type;
1270
1271 if(!s->current_picture_ptr) return 0;
1272
1273 if(!s->dropable) {
1274 err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
1275 h->prev_poc_msb = h->poc_msb;
1276 h->prev_poc_lsb = h->poc_lsb;
1277 }
1278 h->prev_frame_num_offset= h->frame_num_offset;
1279 h->prev_frame_num = h->frame_num;
1280 h->outputed_poc = h->next_outputed_poc;
1281
1282 return err;
1283 }
1284
1285 int ff_h264_frame_start(H264Context *h){
1286 MpegEncContext * const s = &h->s;
1287 int i;
1288 const int pixel_shift = h->pixel_shift;
1289 int thread_count = (s->avctx->active_thread_type & FF_THREAD_SLICE) ? s->avctx->thread_count : 1;
1290
1291 if(MPV_frame_start(s, s->avctx) < 0)
1292 return -1;
1293 ff_er_frame_start(s);
1294 /*
1295 * MPV_frame_start uses pict_type to derive key_frame.
1296 * This is incorrect for H.264; IDR markings must be used.
1297 * Zero here; IDR markings per slice in frame or fields are ORed in later.
1298 * See decode_nal_units().
1299 */
1300 s->current_picture_ptr->f.key_frame = 0;
1301 s->current_picture_ptr->mmco_reset= 0;
1302
1303 assert(s->linesize && s->uvlinesize);
1304
1305 for(i=0; i<16; i++){
1306 h->block_offset[i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 4*s->linesize*((scan8[i] - scan8[0])>>3);
1307 h->block_offset[48+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 8*s->linesize*((scan8[i] - scan8[0])>>3);
1308 }
1309 for(i=0; i<16; i++){
1310 h->block_offset[16+i]=
1311 h->block_offset[32+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3);
1312 h->block_offset[48+16+i]=
1313 h->block_offset[48+32+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 8*s->uvlinesize*((scan8[i] - scan8[0])>>3);
1314 }
1315
1316 /* can't be in alloc_tables because linesize isn't known there.
1317 * FIXME: redo bipred weight to not require extra buffer? */
1318 for(i = 0; i < thread_count; i++)
1319 if(h->thread_context[i] && !h->thread_context[i]->s.obmc_scratchpad)
1320 h->thread_context[i]->s.obmc_scratchpad = av_malloc(16*6*s->linesize);
1321
1322 /* some macroblocks can be accessed before they're available in case of lost slices, mbaff or threading*/
1323 memset(h->slice_table, -1, (s->mb_height*s->mb_stride-1) * sizeof(*h->slice_table));
1324
1325 // s->decode = (s->flags & CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.f.reference /*|| h->contains_intra*/ || 1;
1326
1327 // We mark the current picture as non-reference after allocating it, so
1328 // that if we break out due to an error it can be released automatically
1329 // in the next MPV_frame_start().
1330 // SVQ3 as well as most other codecs have only last/next/current and thus
1331 // get released even with set reference, besides SVQ3 and others do not
1332 // mark frames as reference later "naturally".
1333 if(s->codec_id != CODEC_ID_SVQ3)
1334 s->current_picture_ptr->f.reference = 0;
1335
1336 s->current_picture_ptr->field_poc[0]=
1337 s->current_picture_ptr->field_poc[1]= INT_MAX;
1338
1339 h->next_output_pic = NULL;
1340
1341 assert(s->current_picture_ptr->long_ref==0);
1342
1343 return 0;
1344 }
1345
1346 /**
1347 * Run setup operations that must be run after slice header decoding.
1348 * This includes finding the next displayed frame.
1349 *
1350 * @param h h264 master context
1351 * @param setup_finished enough NALs have been read that we can call
1352 * ff_thread_finish_setup()
1353 */
1354 static void decode_postinit(H264Context *h, int setup_finished){
1355 MpegEncContext * const s = &h->s;
1356 Picture *out = s->current_picture_ptr;
1357 Picture *cur = s->current_picture_ptr;
1358 int i, pics, out_of_order, out_idx;
1359 int invalid = 0, cnt = 0;
1360
1361 s->current_picture_ptr->f.qscale_type = FF_QSCALE_TYPE_H264;
1362 s->current_picture_ptr->f.pict_type = s->pict_type;
1363
1364 if (h->next_output_pic) return;
1365
1366 if (cur->field_poc[0]==INT_MAX || cur->field_poc[1]==INT_MAX) {
1367 //FIXME: if we have two PAFF fields in one packet, we can't start the next thread here.
1368 //If we have one field per packet, we can. The check in decode_nal_units() is not good enough
1369 //to find this yet, so we assume the worst for now.
1370 //if (setup_finished)
1371 // ff_thread_finish_setup(s->avctx);
1372 return;
1373 }
1374
1375 cur->f.interlaced_frame = 0;
1376 cur->f.repeat_pict = 0;
1377
1378 /* Signal interlacing information externally. */
1379 /* Prioritize picture timing SEI information over used decoding process if it exists. */
1380
1381 if(h->sps.pic_struct_present_flag){
1382 switch (h->sei_pic_struct)
1383 {
1384 case SEI_PIC_STRUCT_FRAME:
1385 break;
1386 case SEI_PIC_STRUCT_TOP_FIELD:
1387 case SEI_PIC_STRUCT_BOTTOM_FIELD:
1388 cur->f.interlaced_frame = 1;
1389 break;
1390 case SEI_PIC_STRUCT_TOP_BOTTOM:
1391 case SEI_PIC_STRUCT_BOTTOM_TOP:
1392 if (FIELD_OR_MBAFF_PICTURE)
1393 cur->f.interlaced_frame = 1;
1394 else
1395 // try to flag soft telecine progressive
1396 cur->f.interlaced_frame = h->prev_interlaced_frame;
1397 break;
1398 case SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1399 case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1400 // Signal the possibility of telecined film externally (pic_struct 5,6)
1401 // From these hints, let the applications decide if they apply deinterlacing.
1402 cur->f.repeat_pict = 1;
1403 break;
1404 case SEI_PIC_STRUCT_FRAME_DOUBLING:
1405 // Force progressive here, as doubling interlaced frame is a bad idea.
1406 cur->f.repeat_pict = 2;
1407 break;
1408 case SEI_PIC_STRUCT_FRAME_TRIPLING:
1409 cur->f.repeat_pict = 4;
1410 break;
1411 }
1412
1413 if ((h->sei_ct_type & 3) && h->sei_pic_struct <= SEI_PIC_STRUCT_BOTTOM_TOP)
1414 cur->f.interlaced_frame = (h->sei_ct_type & (1 << 1)) != 0;
1415 }else{
1416 /* Derive interlacing flag from used decoding process. */
1417 cur->f.interlaced_frame = FIELD_OR_MBAFF_PICTURE;
1418 }
1419 h->prev_interlaced_frame = cur->f.interlaced_frame;
1420
1421 if (cur->field_poc[0] != cur->field_poc[1]){
1422 /* Derive top_field_first from field pocs. */
1423 cur->f.top_field_first = cur->field_poc[0] < cur->field_poc[1];
1424 }else{
1425 if (cur->f.interlaced_frame || h->sps.pic_struct_present_flag) {
1426 /* Use picture timing SEI information. Even if it is a information of a past frame, better than nothing. */
1427 if(h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM
1428 || h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1429 cur->f.top_field_first = 1;
1430 else
1431 cur->f.top_field_first = 0;
1432 }else{
1433 /* Most likely progressive */
1434 cur->f.top_field_first = 0;
1435 }
1436 }
1437
1438 //FIXME do something with unavailable reference frames
1439
1440 /* Sort B-frames into display order */
1441
1442 if(h->sps.bitstream_restriction_flag
1443 && s->avctx->has_b_frames < h->sps.num_reorder_frames){
1444 s->avctx->has_b_frames = h->sps.num_reorder_frames;
1445 s->low_delay = 0;
1446 }
1447
1448 if( s->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT
1449 && !h->sps.bitstream_restriction_flag){
1450 s->avctx->has_b_frames = MAX_DELAYED_PIC_COUNT - 1;
1451 s->low_delay= 0;
1452 }
1453
1454 pics = 0;
1455 while(h->delayed_pic[pics]) pics++;
1456
1457 assert(pics <= MAX_DELAYED_PIC_COUNT);
1458
1459 h->delayed_pic[pics++] = cur;
1460 if (cur->f.reference == 0)
1461 cur->f.reference = DELAYED_PIC_REF;
1462
1463 /* Frame reordering. This code takes pictures from coding order and sorts
1464 * them by their incremental POC value into display order. It supports POC
1465 * gaps, MMCO reset codes and random resets.
1466 * A "display group" can start either with a IDR frame (f.key_frame = 1),
1467 * and/or can be closed down with a MMCO reset code. In sequences where
1468 * there is no delay, we can't detect that (since the frame was already
1469 * output to the user), so we also set h->mmco_reset to detect the MMCO
1470 * reset code.
1471 * FIXME: if we detect insufficient delays (as per s->avctx->has_b_frames),
1472 * we increase the delay between input and output. All frames affected by
1473 * the lag (e.g. those that should have been output before another frame
1474 * that we already returned to the user) will be dropped. This is a bug
1475 * that we will fix later. */
1476 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) {
1477 cnt += out->poc < h->last_pocs[i];
1478 invalid += out->poc == INT_MIN;
1479 }
1480 if (!h->mmco_reset && !cur->f.key_frame && cnt + invalid == MAX_DELAYED_PIC_COUNT && cnt > 0) {
1481 h->mmco_reset = 2;
1482 if (pics > 1)
1483 h->delayed_pic[pics - 2]->mmco_reset = 2;
1484 }
1485 if (h->mmco_reset || cur->f.key_frame) {
1486 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
1487 h->last_pocs[i] = INT_MIN;
1488 cnt = 0;
1489 invalid = MAX_DELAYED_PIC_COUNT;
1490 }
1491 out = h->delayed_pic[0];
1492 out_idx = 0;
1493 for (i = 1; i < MAX_DELAYED_PIC_COUNT && h->delayed_pic[i] &&
1494 !h->delayed_pic[i-1]->mmco_reset && !h->delayed_pic[i]->f.key_frame; i++)
1495 {
1496 if(h->delayed_pic[i]->poc < out->poc){
1497 out = h->delayed_pic[i];
1498 out_idx = i;
1499 }
1500 }
1501 if (s->avctx->has_b_frames == 0 && (h->delayed_pic[0]->f.key_frame || h->mmco_reset))
1502 h->next_outputed_poc = INT_MIN;
1503 out_of_order = !out->f.key_frame && !h->mmco_reset && (out->poc < h->next_outputed_poc);
1504
1505 if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames >= h->sps.num_reorder_frames)
1506 { }
1507 else if (out_of_order && pics-1 == s->avctx->has_b_frames &&
1508 s->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT) {
1509 if (invalid + cnt < MAX_DELAYED_PIC_COUNT) {
1510 s->avctx->has_b_frames = FFMAX(s->avctx->has_b_frames, cnt);
1511 }
1512 s->low_delay = 0;
1513 } else if (s->low_delay &&
1514 ((h->next_outputed_poc != INT_MIN && out->poc > h->next_outputed_poc + 2) ||
1515 cur->f.pict_type == AV_PICTURE_TYPE_B)) {
1516 s->low_delay = 0;
1517 s->avctx->has_b_frames++;
1518 }
1519
1520 if(pics > s->avctx->has_b_frames){
1521 out->f.reference &= ~DELAYED_PIC_REF;
1522 out->owner2 = s; // for frame threading, the owner must be the second field's thread
1523 // or else the first thread can release the picture and reuse it unsafely
1524 for(i=out_idx; h->delayed_pic[i]; i++)
1525 h->delayed_pic[i] = h->delayed_pic[i+1];
1526 }
1527 memmove(h->last_pocs, &h->last_pocs[1], sizeof(*h->last_pocs) * (MAX_DELAYED_PIC_COUNT - 1));
1528 h->last_pocs[MAX_DELAYED_PIC_COUNT - 1] = cur->poc;
1529 if(!out_of_order && pics > s->avctx->has_b_frames){
1530 h->next_output_pic = out;
1531 if (out->mmco_reset) {
1532 if (out_idx > 0) {
1533 h->next_outputed_poc = out->poc;
1534 h->delayed_pic[out_idx - 1]->mmco_reset = out->mmco_reset;
1535 } else {
1536 h->next_outputed_poc = INT_MIN;
1537 }
1538 } else {
1539 if (out_idx == 0 && pics > 1 && h->delayed_pic[0]->f.key_frame) {
1540 h->next_outputed_poc = INT_MIN;
1541 } else {
1542 h->next_outputed_poc = out->poc;
1543 }
1544 }
1545 h->mmco_reset = 0;
1546 }else{
1547 av_log(s->avctx, AV_LOG_DEBUG, "no picture\n");
1548 }
1549
1550 if (setup_finished)
1551 ff_thread_finish_setup(s->avctx);
1552 }
1553
1554 static av_always_inline void backup_mb_border(H264Context *h, uint8_t *src_y,
1555 uint8_t *src_cb, uint8_t *src_cr,
1556 int linesize, int uvlinesize, int simple)
1557 {
1558 MpegEncContext * const s = &h->s;
1559 uint8_t *top_border;
1560 int top_idx = 1;
1561 const int pixel_shift = h->pixel_shift;
1562 int chroma444 = CHROMA444;
1563 int chroma422 = CHROMA422;
1564
1565 src_y -= linesize;
1566 src_cb -= uvlinesize;
1567 src_cr -= uvlinesize;
1568
1569 if(!simple && FRAME_MBAFF){
1570 if(s->mb_y&1){
1571 if(!MB_MBAFF){
1572 top_border = h->top_borders[0][s->mb_x];
1573 AV_COPY128(top_border, src_y + 15*linesize);
1574 if (pixel_shift)
1575 AV_COPY128(top_border+16, src_y+15*linesize+16);
1576 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1577 if(chroma444){
1578 if (pixel_shift){
1579 AV_COPY128(top_border+32, src_cb + 15*uvlinesize);
1580 AV_COPY128(top_border+48, src_cb + 15*uvlinesize+16);
1581 AV_COPY128(top_border+64, src_cr + 15*uvlinesize);
1582 AV_COPY128(top_border+80, src_cr + 15*uvlinesize+16);
1583 } else {
1584 AV_COPY128(top_border+16, src_cb + 15*uvlinesize);
1585 AV_COPY128(top_border+32, src_cr + 15*uvlinesize);
1586 }
1587 } else if(chroma422) {
1588 if (pixel_shift) {
1589 AV_COPY128(top_border+32, src_cb + 15*uvlinesize);
1590 AV_COPY128(top_border+48, src_cr + 15*uvlinesize);
1591 } else {
1592 AV_COPY64(top_border+16, src_cb + 15*uvlinesize);
1593 AV_COPY64(top_border+24, src_cr + 15*uvlinesize);
1594 }
1595 } else {
1596 if (pixel_shift) {
1597 AV_COPY128(top_border+32, src_cb+7*uvlinesize);
1598 AV_COPY128(top_border+48, src_cr+7*uvlinesize);
1599 } else {
1600 AV_COPY64(top_border+16, src_cb+7*uvlinesize);
1601 AV_COPY64(top_border+24, src_cr+7*uvlinesize);
1602 }
1603 }
1604 }
1605 }
1606 }else if(MB_MBAFF){
1607 top_idx = 0;
1608 }else
1609 return;
1610 }
1611
1612 top_border = h->top_borders[top_idx][s->mb_x];
1613 // There are two lines saved, the line above the the top macroblock of a pair,
1614 // and the line above the bottom macroblock
1615 AV_COPY128(top_border, src_y + 16*linesize);
1616 if (pixel_shift)
1617 AV_COPY128(top_border+16, src_y+16*linesize+16);
1618
1619 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1620 if(chroma444){
1621 if (pixel_shift){
1622 AV_COPY128(top_border+32, src_cb + 16*linesize);
1623 AV_COPY128(top_border+48, src_cb + 16*linesize+16);
1624 AV_COPY128(top_border+64, src_cr + 16*linesize);
1625 AV_COPY128(top_border+80, src_cr + 16*linesize+16);
1626 } else {
1627 AV_COPY128(top_border+16, src_cb + 16*linesize);
1628 AV_COPY128(top_border+32, src_cr + 16*linesize);
1629 }
1630 } else if(chroma422) {
1631 if (pixel_shift) {
1632 AV_COPY128(top_border+32, src_cb+16*uvlinesize);
1633 AV_COPY128(top_border+48, src_cr+16*uvlinesize);
1634 } else {
1635 AV_COPY64(top_border+16, src_cb+16*uvlinesize);
1636 AV_COPY64(top_border+24, src_cr+16*uvlinesize);
1637 }
1638 } else {
1639 if (pixel_shift) {
1640 AV_COPY128(top_border+32, src_cb+8*uvlinesize);
1641 AV_COPY128(top_border+48, src_cr+8*uvlinesize);
1642 } else {
1643 AV_COPY64(top_border+16, src_cb+8*uvlinesize);
1644 AV_COPY64(top_border+24, src_cr+8*uvlinesize);
1645 }
1646 }
1647 }
1648 }
1649
1650 static av_always_inline void xchg_mb_border(H264Context *h, uint8_t *src_y,
1651 uint8_t *src_cb, uint8_t *src_cr,
1652 int linesize, int uvlinesize,
1653 int xchg, int chroma444,
1654 int simple, int pixel_shift){
1655 MpegEncContext * const s = &h->s;
1656 int deblock_topleft;
1657 int deblock_top;
1658 int top_idx = 1;
1659 uint8_t *top_border_m1;
1660 uint8_t *top_border;
1661
1662 if(!simple && FRAME_MBAFF){
1663 if(s->mb_y&1){
1664 if(!MB_MBAFF)
1665 return;
1666 }else{
1667 top_idx = MB_MBAFF ? 0 : 1;
1668 }
1669 }
1670
1671 if(h->deblocking_filter == 2) {
1672 deblock_topleft = h->slice_table[h->mb_xy - 1 - s->mb_stride] == h->slice_num;
1673 deblock_top = h->top_type;
1674 } else {
1675 deblock_topleft = (s->mb_x > 0);
1676 deblock_top = (s->mb_y > !!MB_FIELD);
1677 }
1678
1679 src_y -= linesize + 1 + pixel_shift;
1680 src_cb -= uvlinesize + 1 + pixel_shift;
1681 src_cr -= uvlinesize + 1 + pixel_shift;
1682
1683 top_border_m1 = h->top_borders[top_idx][s->mb_x-1];
1684 top_border = h->top_borders[top_idx][s->mb_x];
1685
1686 #define XCHG(a,b,xchg)\
1687 if (pixel_shift) {\
1688 if (xchg) {\
1689 AV_SWAP64(b+0,a+0);\
1690 AV_SWAP64(b+8,a+8);\
1691 } else {\
1692 AV_COPY128(b,a); \
1693 }\
1694 } else \
1695 if (xchg) AV_SWAP64(b,a);\
1696 else AV_COPY64(b,a);
1697
1698 if(deblock_top){
1699 if(deblock_topleft){
1700 XCHG(top_border_m1 + (8 << pixel_shift), src_y - (7 << pixel_shift), 1);
1701 }
1702 XCHG(top_border + (0 << pixel_shift), src_y + (1 << pixel_shift), xchg);
1703 XCHG(top_border + (8 << pixel_shift), src_y + (9 << pixel_shift), 1);
1704 if(s->mb_x+1 < s->mb_width){
1705 XCHG(h->top_borders[top_idx][s->mb_x+1], src_y + (17 << pixel_shift), 1);
1706 }
1707 }
1708 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1709 if(chroma444){
1710 if(deblock_topleft){
1711 XCHG(top_border_m1 + (24 << pixel_shift), src_cb - (7 << pixel_shift), 1);
1712 XCHG(top_border_m1 + (40 << pixel_shift), src_cr - (7 << pixel_shift), 1);
1713 }
1714 XCHG(top_border + (16 << pixel_shift), src_cb + (1 << pixel_shift), xchg);
1715 XCHG(top_border + (24 << pixel_shift), src_cb + (9 << pixel_shift), 1);
1716 XCHG(top_border + (32 << pixel_shift), src_cr + (1 << pixel_shift), xchg);
1717 XCHG(top_border + (40 << pixel_shift), src_cr + (9 << pixel_shift), 1);
1718 if(s->mb_x+1 < s->mb_width){
1719 XCHG(h->top_borders[top_idx][s->mb_x+1] + (16 << pixel_shift), src_cb + (17 << pixel_shift), 1);
1720 XCHG(h->top_borders[top_idx][s->mb_x+1] + (32 << pixel_shift), src_cr + (17 << pixel_shift), 1);
1721 }
1722 } else {
1723 if(deblock_top){
1724 if(deblock_topleft){
1725 XCHG(top_border_m1 + (16 << pixel_shift), src_cb - (7 << pixel_shift), 1);
1726 XCHG(top_border_m1 + (24 << pixel_shift), src_cr - (7 << pixel_shift), 1);
1727 }
1728 XCHG(top_border + (16 << pixel_shift), src_cb+1+pixel_shift, 1);
1729 XCHG(top_border + (24 << pixel_shift), src_cr+1+pixel_shift, 1);
1730 }
1731 }
1732 }
1733 }
1734
1735 static av_always_inline int dctcoef_get(DCTELEM *mb, int high_bit_depth, int index) {
1736 if (high_bit_depth) {
1737 return AV_RN32A(((int32_t*)mb) + index);
1738 } else
1739 return AV_RN16A(mb + index);
1740 }
1741
1742 static av_always_inline void dctcoef_set(DCTELEM *mb, int high_bit_depth, int index, int value) {
1743 if (high_bit_depth) {
1744 AV_WN32A(((int32_t*)mb) + index, value);
1745 } else
1746 AV_WN16A(mb + index, value);
1747 }
1748
1749 static av_always_inline void hl_decode_mb_predict_luma(H264Context *h, int mb_type, int is_h264, int simple, int transform_bypass,
1750 int pixel_shift, int *block_offset, int linesize, uint8_t *dest_y, int p)
1751 {
1752 MpegEncContext * const s = &h->s;
1753 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1754 void (*idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
1755 int i;
1756 int qscale = p == 0 ? s->qscale : h->chroma_qp[p-1];
1757 block_offset += 16*p;
1758 if(IS_INTRA4x4(mb_type)){
1759 if(simple || !s->encoding){
1760 if(IS_8x8DCT(mb_type)){
1761 if(transform_bypass){
1762 idct_dc_add =
1763 idct_add = s->dsp.add_pixels8;
1764 }else{
1765 idct_dc_add = h->h264dsp.h264_idct8_dc_add;
1766 idct_add = h->h264dsp.h264_idct8_add;
1767 }
1768 for(i=0; i<16; i+=4){
1769 uint8_t * const ptr= dest_y + block_offset[i];
1770 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
1771 if(transform_bypass && h->sps.profile_idc==244 && dir<=1){
1772 h->hpc.pred8x8l_add[dir](ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1773 }else{
1774 const int nnz = h->non_zero_count_cache[ scan8[i+p*16] ];
1775 h->hpc.pred8x8l[ dir ](ptr, (h->topleft_samples_available<<i)&0x8000,
1776 (h->topright_samples_available<<i)&0x4000, linesize);
1777 if(nnz){
1778 if(nnz == 1 && dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1779 idct_dc_add(ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1780 else
1781 idct_add (ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1782 }
1783 }
1784 }
1785 }else{
1786 if(transform_bypass){
1787 idct_dc_add =
1788 idct_add = s->dsp.add_pixels4;
1789 }else{
1790 idct_dc_add = h->h264dsp.h264_idct_dc_add;
1791 idct_add = h->h264dsp.h264_idct_add;
1792 }
1793 for(i=0; i<16; i++){
1794 uint8_t * const ptr= dest_y + block_offset[i];
1795 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
1796
1797 if(transform_bypass && h->sps.profile_idc==244 && dir<=1){
1798 h->hpc.pred4x4_add[dir](ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1799 }else{
1800 uint8_t *topright;
1801 int nnz, tr;
1802 uint64_t tr_high;
1803 if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
1804 const int topright_avail= (h->topright_samples_available<<i)&0x8000;
1805 assert(s->mb_y || linesize <= block_offset[i]);
1806 if(!topright_avail){
1807 if (pixel_shift) {
1808 tr_high= ((uint16_t*)ptr)[3 - linesize/2]*0x0001000100010001ULL;
1809 topright= (uint8_t*) &tr_high;
1810 } else {
1811 tr= ptr[3 - linesize]*0x01010101u;
1812 topright= (uint8_t*) &tr;
1813 }
1814 }else
1815 topright= ptr + (4 << pixel_shift) - linesize;
1816 }else
1817 topright= NULL;
1818
1819 h->hpc.pred4x4[ dir ](ptr, topright, linesize);
1820 nnz = h->non_zero_count_cache[ scan8[i+p*16] ];
1821 if(nnz){
1822 if(is_h264){
1823 if(nnz == 1 && dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1824 idct_dc_add(ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1825 else
1826 idct_add (ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1827 }else
1828 ff_svq3_add_idct_c(ptr, h->mb + i*16+p*256, linesize, qscale, 0);
1829 }
1830 }
1831 }
1832 }
1833 }
1834 }else{
1835 h->hpc.pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);
1836 if(is_h264){
1837 if(h->non_zero_count_cache[ scan8[LUMA_DC_BLOCK_INDEX+p] ]){
1838 if(!transform_bypass)
1839 h->h264dsp.h264_luma_dc_dequant_idct(h->mb+(p*256 << pixel_shift), h->mb_luma_dc[p], h->dequant4_coeff[p][qscale][0]);
1840 else{
1841 static const uint8_t dc_mapping[16] = { 0*16, 1*16, 4*16, 5*16, 2*16, 3*16, 6*16, 7*16,
1842 8*16, 9*16,12*16,13*16,10*16,11*16,14*16,15*16};
1843 for(i = 0; i < 16; i++)
1844 dctcoef_set(h->mb+(p*256 << pixel_shift), pixel_shift, dc_mapping[i], dctcoef_get(h->mb_luma_dc[p], pixel_shift, i));
1845 }
1846 }
1847 }else
1848 ff_svq3_luma_dc_dequant_idct_c(h->mb+p*256, h->mb_luma_dc[p], qscale);
1849 }
1850 }
1851
1852 static av_always_inline void hl_decode_mb_idct_luma(H264Context *h, int mb_type, int is_h264, int simple, int transform_bypass,
1853 int pixel_shift, int *block_offset, int linesize, uint8_t *dest_y, int p)
1854 {
1855 MpegEncContext * const s = &h->s;
1856 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1857 int i;
1858 block_offset += 16*p;
1859 if(!IS_INTRA4x4(mb_type)){
1860 if(is_h264){
1861 if(IS_INTRA16x16(mb_type)){
1862 if(transform_bypass){
1863 if(h->sps.profile_idc==244 && (h->intra16x16_pred_mode==VERT_PRED8x8 || h->intra16x16_pred_mode==HOR_PRED8x8)){
1864 h->hpc.pred16x16_add[h->intra16x16_pred_mode](dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize);
1865 }else{
1866 for(i=0; i<16; i++){
1867 if(h->non_zero_count_cache[ scan8[i+p*16] ] || dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1868 s->dsp.add_pixels4(dest_y + block_offset[i], h->mb + (i*16+p*256 << pixel_shift), linesize);
1869 }
1870 }
1871 }else{
1872 h->h264dsp.h264_idct_add16intra(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1873 }
1874 }else if(h->cbp&15){
1875 if(transform_bypass){
1876 const int di = IS_8x8DCT(mb_type) ? 4 : 1;
1877 idct_add= IS_8x8DCT(mb_type) ? s->dsp.add_pixels8 : s->dsp.add_pixels4;
1878 for(i=0; i<16; i+=di){
1879 if(h->non_zero_count_cache[ scan8[i+p*16] ]){
1880 idct_add(dest_y + block_offset[i], h->mb + (i*16+p*256 << pixel_shift), linesize);
1881 }
1882 }
1883 }else{
1884 if(IS_8x8DCT(mb_type)){
1885 h->h264dsp.h264_idct8_add4(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1886 }else{
1887 h->h264dsp.h264_idct_add16(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1888 }
1889 }
1890 }
1891 }else{
1892 for(i=0; i<16; i++){
1893 if(h->non_zero_count_cache[ scan8[i+p*16] ] || h->mb[i*16+p*256]){ //FIXME benchmark weird rule, & below
1894 uint8_t * const ptr= dest_y + block_offset[i];
1895 ff_svq3_add_idct_c(ptr, h->mb + i*16 + p*256, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0);
1896 }
1897 }
1898 }
1899 }
1900 }
1901
1902 static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple, int pixel_shift)
1903 {
1904 MpegEncContext * const s = &h->s;
1905 const int mb_x= s->mb_x;
1906 const int mb_y= s->mb_y;
1907 const int mb_xy= h->mb_xy;
1908 const int mb_type = s->current_picture.f.mb_type[mb_xy];
1909 uint8_t *dest_y, *dest_cb, *dest_cr;
1910 int linesize, uvlinesize /*dct_offset*/;
1911 int i, j;
1912 int *block_offset = &h->block_offset[0];
1913 const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass);
1914 /* is_h264 should always be true if SVQ3 is disabled. */
1915 const int is_h264 = !CONFIG_SVQ3_DECODER || simple || s->codec_id == CODEC_ID_H264;
1916 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1917 const int block_h = 16 >> s->chroma_y_shift;
1918 const int chroma422 = CHROMA422;
1919
1920 dest_y = s->current_picture.f.data[0] + ((mb_x << pixel_shift) + mb_y * s->linesize ) * 16;
1921 dest_cb = s->current_picture.f.data[1] + (mb_x << pixel_shift)*8 + mb_y * s->uvlinesize * block_h;
1922 dest_cr = s->current_picture.f.data[2] + (mb_x << pixel_shift)*8 + mb_y * s->uvlinesize * block_h;
1923
1924 s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + (64 << pixel_shift), s->linesize, 4);
1925 s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + (64 << pixel_shift), dest_cr - dest_cb, 2);
1926
1927 h->list_counts[mb_xy]= h->list_count;
1928
1929 if (!simple && MB_FIELD) {
1930 linesize = h->mb_linesize = s->linesize * 2;
1931 uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
1932 block_offset = &h->block_offset[48];
1933 if(mb_y&1){ //FIXME move out of this function?
1934 dest_y -= s->linesize*15;
1935 dest_cb-= s->uvlinesize * (block_h - 1);
1936 dest_cr-= s->uvlinesize * (block_h - 1);
1937 }
1938 if(FRAME_MBAFF) {
1939 int list;
1940 for(list=0; list<h->list_count; list++){
1941 if(!USES_LIST(mb_type, list))
1942 continue;
1943 if(IS_16X16(mb_type)){
1944 int8_t *ref = &h->ref_cache[list][scan8[0]];
1945 fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);
1946 }else{
1947 for(i=0; i<16; i+=4){
1948 int ref = h->ref_cache[list][scan8[i]];
1949 if(ref >= 0)
1950 fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);
1951 }
1952 }
1953 }
1954 }
1955 } else {
1956 linesize = h->mb_linesize = s->linesize;
1957 uvlinesize = h->mb_uvlinesize = s->uvlinesize;
1958 // dct_offset = s->linesize * 16;
1959 }
1960
1961 if (!simple && IS_INTRA_PCM(mb_type)) {
1962 if (pixel_shift) {
1963 const int bit_depth = h->sps.bit_depth_luma;
1964 int j;
1965 GetBitContext gb;
1966 init_get_bits(&gb, (uint8_t*)h->mb, 384*bit_depth);
1967
1968 for (i = 0; i < 16; i++) {
1969 uint16_t *tmp_y = (uint16_t*)(dest_y + i*linesize);
1970 for (j = 0; j < 16; j++)
1971 tmp_y[j] = get_bits(&gb, bit_depth);
1972 }
1973 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1974 if (!h->sps.chroma_format_idc) {
1975 for (i = 0; i < block_h; i++) {
1976 uint16_t *tmp_cb = (uint16_t*)(dest_cb + i*uvlinesize);
1977 for (j = 0; j < 8; j++) {
1978 tmp_cb[j] = 1 << (bit_depth - 1);
1979 }
1980 }
1981 for (i = 0; i < block_h; i++) {
1982 uint16_t *tmp_cr = (uint16_t*)(dest_cr + i*uvlinesize);
1983 for (j = 0; j < 8; j++) {
1984 tmp_cr[j] = 1 << (bit_depth - 1);
1985 }
1986 }
1987 } else {
1988 for (i = 0; i < block_h; i++) {
1989 uint16_t *tmp_cb = (uint16_t*)(dest_cb + i*uvlinesize);
1990 for (j = 0; j < 8; j++)
1991 tmp_cb[j] = get_bits(&gb, bit_depth);
1992 }
1993 for (i = 0; i < block_h; i++) {
1994 uint16_t *tmp_cr = (uint16_t*)(dest_cr + i*uvlinesize);
1995 for (j = 0; j < 8; j++)
1996 tmp_cr[j] = get_bits(&gb, bit_depth);
1997 }
1998 }
1999 }
2000 } else {
2001 for (i=0; i<16; i++) {
2002 memcpy(dest_y + i* linesize, h->mb + i*8, 16);
2003 }
2004 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2005 if (!h->sps.chroma_format_idc) {
2006 for (i = 0; i < block_h; i++) {
2007 memset(dest_cb + i*uvlinesize, 128, 8);
2008 memset(dest_cr + i*uvlinesize, 128, 8);
2009 }
2010 } else {
2011 for (i = 0; i < block_h; i++) {
2012 memcpy(dest_cb + i*uvlinesize, h->mb + 128 + i*4, 8);
2013 memcpy(dest_cr + i*uvlinesize, h->mb + 160 + i*4, 8);
2014 }
2015 }
2016 }
2017 }
2018 } else {
2019 if(IS_INTRA(mb_type)){
2020 if(h->deblocking_filter)
2021 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, 0, simple, pixel_shift);
2022
2023 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2024 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
2025 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
2026 }
2027
2028 hl_decode_mb_predict_luma(h, mb_type, is_h264, simple, transform_bypass, pixel_shift, block_offset, linesize, dest_y, 0);
2029
2030 if(h->deblocking_filter)
2031 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, 0, simple, pixel_shift);
2032 }else if(is_h264){
2033 if (chroma422) {
2034 hl_motion_422(h, dest_y, dest_cb, dest_cr,
2035 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
2036 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
2037 h->h264dsp.weight_h264_pixels_tab,
2038 h->h264dsp.biweight_h264_pixels_tab,
2039 pixel_shift);
2040 } else {
2041 hl_motion_420(h, dest_y, dest_cb, dest_cr,
2042 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
2043 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
2044 h->h264dsp.weight_h264_pixels_tab,
2045 h->h264dsp.biweight_h264_pixels_tab,
2046 pixel_shift);
2047 }
2048 }
2049
2050 hl_decode_mb_idct_luma(h, mb_type, is_h264, simple, transform_bypass, pixel_shift, block_offset, linesize, dest_y, 0);
2051
2052 if((simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) && (h->cbp&0x30)){
2053 uint8_t *dest[2] = {dest_cb, dest_cr};
2054 if(transform_bypass){
2055 if(IS_INTRA(mb_type) && h->sps.profile_idc==244 && (h->chroma_pred_mode==VERT_PRED8x8 || h->chroma_pred_mode==HOR_PRED8x8)){
2056 h->hpc.pred8x8_add[h->chroma_pred_mode](dest[0], block_offset + 16, h->mb + (16*16*1 << pixel_shift), uvlinesize);
2057 h->hpc.pred8x8_add[h->chroma_pred_mode](dest[1], block_offset + 32, h->mb + (16*16*2 << pixel_shift), uvlinesize);
2058 }else{
2059 idct_add = s->dsp.add_pixels4;
2060 for(j=1; j<3; j++){
2061 for(i=j*16; i<j*16+4; i++){
2062 if(h->non_zero_count_cache[ scan8[i] ] || dctcoef_get(h->mb, pixel_shift, i*16))
2063 idct_add (dest[j-1] + block_offset[i], h->mb + (i*16 << pixel_shift), uvlinesize);
2064 }
2065 if (chroma422) {
2066 for(i=j*16+4; i<j*16+8; i++){
2067 if(h->non_zero_count_cache[ scan8[i+4] ] || dctcoef_get(h->mb, pixel_shift, i*16))
2068 idct_add (dest[j-1] + block_offset[i+4], h->mb + (i*16 << pixel_shift), uvlinesize);
2069 }
2070 }
2071 }
2072 }
2073 }else{
2074 if(is_h264){
2075 int qp[2];
2076 if (chroma422) {
2077 qp[0] = h->chroma_qp[0] + 3;
2078 qp[1] = h->chroma_qp[1] + 3;
2079 } else {
2080 qp[0] = h->chroma_qp[0];
2081 qp[1] = h->chroma_qp[1];
2082 }
2083 if(h->non_zero_count_cache[ scan8[CHROMA_DC_BLOCK_INDEX+0] ])
2084 h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16*16*1 << pixel_shift), h->dequant4_coeff[IS_INTRA(mb_type) ? 1:4][qp[0]][0]);
2085 if(h->non_zero_count_cache[ scan8[CHROMA_DC_BLOCK_INDEX+1] ])
2086 h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16*16*2 << pixel_shift), h->dequant4_coeff[IS_INTRA(mb_type) ? 2:5][qp[1]][0]);
2087 h->h264dsp.h264_idct_add8(dest, block_offset,
2088 h->mb, uvlinesize,
2089 h->non_zero_count_cache);
2090 }else{
2091 h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + 16*16*1, h->dequant4_coeff[IS_INTRA(mb_type) ? 1:4][h->chroma_qp[0]][0]);
2092 h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + 16*16*2, h->dequant4_coeff[IS_INTRA(mb_type) ? 2:5][h->chroma_qp[1]][0]);
2093 for(j=1; j<3; j++){
2094 for(i=j*16; i<j*16+4; i++){
2095 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2096 uint8_t * const ptr= dest[j-1] + block_offset[i];
2097 ff_svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, ff_h264_chroma_qp[0][s->qscale + 12] - 12, 2);
2098 }
2099 }
2100 }
2101 }
2102 }
2103 }
2104 }
2105 if(h->cbp || IS_INTRA(mb_type))
2106 {
2107 s->dsp.clear_blocks(h->mb);
2108 s->dsp.clear_blocks(h->mb+(24*16<<pixel_shift));
2109 }
2110 }
2111
2112 static av_always_inline void hl_decode_mb_444_internal(H264Context *h, int simple, int pixel_shift){
2113 MpegEncContext * const s = &h->s;
2114 const int mb_x= s->mb_x;
2115 const int mb_y= s->mb_y;
2116 const int mb_xy= h->mb_xy;
2117 const int mb_type = s->current_picture.f.mb_type[mb_xy];
2118 uint8_t *dest[3];
2119 int linesize;
2120 int i, j, p;
2121 int *block_offset = &h->block_offset[0];
2122 const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass);
2123 const int plane_count = (simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) ? 3 : 1;
2124
2125 for (p = 0; p < plane_count; p++)
2126 {
2127 dest[p] = s->current_picture.f.data[p] + ((mb_x << pixel_shift) + mb_y * s->linesize) * 16;
2128 s->dsp.prefetch(dest[p] + (s->mb_x&3)*4*s->linesize + (64 << pixel_shift), s->linesize, 4);
2129 }
2130
2131 h->list_counts[mb_xy]= h->list_count;
2132
2133 if (!simple && MB_FIELD) {
2134 linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize * 2;
2135 block_offset = &h->block_offset[48];
2136 if(mb_y&1) //FIXME move out of this function?
2137 for (p = 0; p < 3; p++)
2138 dest[p] -= s->linesize*15;
2139 if(FRAME_MBAFF) {
2140 int list;
2141 for(list=0; list<h->list_count; list++){
2142 if(!USES_LIST(mb_type, list))
2143 continue;
2144 if(IS_16X16(mb_type)){
2145 int8_t *ref = &h->ref_cache[list][scan8[0]];
2146 fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);
2147 }else{
2148 for(i=0; i<16; i+=4){
2149 int ref = h->ref_cache[list][scan8[i]];
2150 if(ref >= 0)
2151 fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);
2152 }
2153 }
2154 }
2155 }
2156 } else {
2157 linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize;
2158 }
2159
2160 if (!simple && IS_INTRA_PCM(mb_type)) {
2161 if (pixel_shift) {
2162 const int bit_depth = h->sps.bit_depth_luma;
2163 GetBitContext gb;
2164 init_get_bits(&gb, (uint8_t*)h->mb, 768*bit_depth);
2165
2166 for (p = 0; p < plane_count; p++) {
2167 for (i = 0; i < 16; i++) {
2168 uint16_t *tmp = (uint16_t*)(dest[p] + i*linesize);
2169 for (j = 0; j < 16; j++)
2170 tmp[j] = get_bits(&gb, bit_depth);
2171 }
2172 }
2173 } else {
2174 for (p = 0; p < plane_count; p++) {
2175 for (i = 0; i < 16; i++) {
2176 memcpy(dest[p] + i*linesize, h->mb + p*128 + i*8, 16);
2177 }
2178 }
2179 }
2180 } else {
2181 if(IS_INTRA(mb_type)){
2182 if(h->deblocking_filter)
2183 xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, linesize, 1, 1, simple, pixel_shift);
2184
2185 for (p = 0; p < plane_count; p++)
2186 hl_decode_mb_predict_luma(h, mb_type, 1, simple, transform_bypass, pixel_shift, block_offset, linesize, dest[p], p);
2187
2188 if(h->deblocking_filter)
2189 xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, linesize, 0, 1, simple, pixel_shift);
2190 }else{
2191 hl_motion(h, dest[0], dest[1], dest[2],
2192 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
2193 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
2194 h->h264dsp.weight_h264_pixels_tab,
2195 h->h264dsp.biweight_h264_pixels_tab, pixel_shift, 3);
2196 }
2197
2198 for (p = 0; p < plane_count; p++)
2199 hl_decode_mb_idct_luma(h, mb_type, 1, simple, transform_bypass, pixel_shift, block_offset, linesize, dest[p], p);
2200 }
2201 if(h->cbp || IS_INTRA(mb_type))
2202 {
2203 s->dsp.clear_blocks(h->mb);
2204 s->dsp.clear_blocks(h->mb+(24*16<<pixel_shift));
2205 }
2206 }
2207
2208 /**
2209 * Process a macroblock; this case avoids checks for expensive uncommon cases.
2210 */
2211 #define hl_decode_mb_simple(sh, bits) \
2212 static void hl_decode_mb_simple_ ## bits(H264Context *h){ \
2213 hl_decode_mb_internal(h, 1, sh); \
2214 }
2215 hl_decode_mb_simple(0, 8)
2216 hl_decode_mb_simple(1, 16)
2217
2218 /**
2219 * Process a macroblock; this handles edge cases, such as interlacing.
2220 */
2221 static void av_noinline hl_decode_mb_complex(H264Context *h){
2222 hl_decode_mb_internal(h, 0, h->pixel_shift);
2223 }
2224
2225 static void av_noinline hl_decode_mb_444_complex(H264Context *h){
2226 hl_decode_mb_444_internal(h, 0, h->pixel_shift);
2227 }
2228
2229 static void av_noinline hl_decode_mb_444_simple(H264Context *h){
2230 hl_decode_mb_444_internal(h, 1, 0);
2231 }
2232
2233 void ff_h264_hl_decode_mb(H264Context *h){
2234 MpegEncContext * const s = &h->s;
2235 const int mb_xy= h->mb_xy;
2236 const int mb_type = s->current_picture.f.mb_type[mb_xy];
2237 int is_complex = CONFIG_SMALL || h->is_complex || IS_INTRA_PCM(mb_type) || s->qscale == 0;
2238
2239 if (CHROMA444) {
2240 if(is_complex || h->pixel_shift)
2241 hl_decode_mb_444_complex(h);
2242 else
2243 hl_decode_mb_444_simple(h);
2244 } else if (is_complex) {
2245 hl_decode_mb_complex(h);
2246 } else if (h->pixel_shift) {
2247 hl_decode_mb_simple_16(h);
2248 } else
2249 hl_decode_mb_simple_8(h);
2250 }
2251
2252 static int pred_weight_table(H264Context *h){
2253 MpegEncContext * const s = &h->s;
2254 int list, i;
2255 int luma_def, chroma_def;
2256
2257 h->use_weight= 0;
2258 h->use_weight_chroma= 0;
2259 h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
2260 if(h->sps.chroma_format_idc)
2261 h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
2262 luma_def = 1<<h->luma_log2_weight_denom;
2263 chroma_def = 1<<h->chroma_log2_weight_denom;
2264
2265 for(list=0; list<2; list++){
2266 h->luma_weight_flag[list] = 0;
2267 h->chroma_weight_flag[list] = 0;
2268 for(i=0; i<h->ref_count[list]; i++){
2269 int luma_weight_flag, chroma_weight_flag;
2270
2271 luma_weight_flag= get_bits1(&s->gb);
2272 if(luma_weight_flag){
2273 h->luma_weight[i][list][0]= get_se_golomb(&s->gb);
2274 h->luma_weight[i][list][1]= get_se_golomb(&s->gb);
2275 if( h->luma_weight[i][list][0] != luma_def
2276 || h->luma_weight[i][list][1] != 0) {
2277 h->use_weight= 1;
2278 h->luma_weight_flag[list]= 1;
2279 }
2280 }else{
2281 h->luma_weight[i][list][0]= luma_def;
2282 h->luma_weight[i][list][1]= 0;
2283 }
2284
2285 if(h->sps.chroma_format_idc){
2286 chroma_weight_flag= get_bits1(&s->gb);
2287 if(chroma_weight_flag){
2288 int j;
2289 for(j=0; j<2; j++){
2290 h->chroma_weight[i][list][j][0]= get_se_golomb(&s->gb);
2291 h->chroma_weight[i][list][j][1]= get_se_golomb(&s->gb);
2292 if( h->chroma_weight[i][list][j][0] != chroma_def
2293 || h->chroma_weight[i][list][j][1] != 0) {
2294 h->use_weight_chroma= 1;
2295 h->chroma_weight_flag[list]= 1;
2296 }
2297 }
2298 }else{
2299 int j;
2300 for(j=0; j<2; j++){
2301 h->chroma_weight[i][list][j][0]= chroma_def;
2302 h->chroma_weight[i][list][j][1]= 0;
2303 }
2304 }
2305 }
2306 }
2307 if(h->slice_type_nos != AV_PICTURE_TYPE_B) break;
2308 }
2309 h->use_weight= h->use_weight || h->use_weight_chroma;
2310 return 0;
2311 }
2312
2313 /**
2314 * Initialize implicit_weight table.
2315 * @param field 0/1 initialize the weight for interlaced MBAFF
2316 * -1 initializes the rest
2317 */
2318 static void implicit_weight_table(H264Context *h, int field){
2319 MpegEncContext * const s = &h->s;
2320 int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
2321
2322 for (i = 0; i < 2; i++) {
2323 h->luma_weight_flag[i] = 0;
2324 h->chroma_weight_flag[i] = 0;
2325 }
2326
2327 if(field < 0){
2328 if (s->picture_structure == PICT_FRAME) {
2329 cur_poc = s->current_picture_ptr->poc;
2330 } else {
2331 cur_poc = s->current_picture_ptr->field_poc[s->picture_structure - 1];
2332 }
2333 if( h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF
2334 && h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){
2335 h->use_weight= 0;
2336 h->use_weight_chroma= 0;
2337 return;
2338 }
2339 ref_start= 0;
2340 ref_count0= h->ref_count[0];
2341 ref_count1= h->ref_count[1];
2342 }else{
2343 cur_poc = s->current_picture_ptr->field_poc[field];
2344 ref_start= 16;
2345 ref_count0= 16+2*h->ref_count[0];
2346 ref_count1= 16+2*h->ref_count[1];
2347 }
2348
2349 h->use_weight= 2;
2350 h->use_weight_chroma= 2;
2351 h->luma_log2_weight_denom= 5;
2352 h->chroma_log2_weight_denom= 5;
2353
2354 for(ref0=ref_start; ref0 < ref_count0; ref0++){
2355 int poc0 = h->ref_list[0][ref0].poc;
2356 for(ref1=ref_start; ref1 < ref_count1; ref1++){
2357 int w = 32;
2358 if (!h->ref_list[0][ref0].long_ref && !h->ref_list[1][ref1].long_ref) {
2359 int poc1 = h->ref_list[1][ref1].poc;
2360 int td = av_clip(poc1 - poc0, -128, 127);
2361 if(td){
2362 int tb = av_clip(cur_poc - poc0, -128, 127);
2363 int tx = (16384 + (FFABS(td) >> 1)) / td;
2364 int dist_scale_factor = (tb*tx + 32) >> 8;
2365 if(dist_scale_factor >= -64 && dist_scale_factor <= 128)
2366 w = 64 - dist_scale_factor;
2367 }
2368 }
2369 if(field<0){
2370 h->implicit_weight[ref0][ref1][0]=
2371 h->implicit_weight[ref0][ref1][1]= w;
2372 }else{
2373 h->implicit_weight[ref0][ref1][field]=w;
2374 }
2375 }
2376 }
2377 }
2378
2379 /**
2380 * instantaneous decoder refresh.
2381 */
2382 static void idr(H264Context *h){
2383 ff_h264_remove_all_refs(h);
2384 h->prev_frame_num= 0;
2385 h->prev_frame_num_offset= 0;
2386 h->prev_poc_msb=
2387 h->prev_poc_lsb= 0;
2388 }
2389
2390 /* forget old pics after a seek */
2391 static void flush_dpb(AVCodecContext *avctx){
2392 H264Context *h= avctx->priv_data;
2393 int i;
2394 for(i=0; i<MAX_DELAYED_PIC_COUNT; i++) {
2395 if(h->delayed_pic[i])
2396 h->delayed_pic[i]->f.reference = 0;
2397 h->delayed_pic[i]= NULL;
2398 }
2399 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
2400 h->last_pocs[i] = INT_MIN;
2401 h->outputed_poc=h->next_outputed_poc= INT_MIN;
2402 h->prev_interlaced_frame = 1;
2403 idr(h);
2404 if(h->s.current_picture_ptr)
2405 h->s.current_picture_ptr->f.reference = 0;
2406 h->s.first_field= 0;
2407 ff_h264_reset_sei(h);
2408 ff_mpeg_flush(avctx);
2409 }
2410
2411 static int init_poc(H264Context *h){
2412 MpegEncContext * const s = &h->s;
2413 const int max_frame_num= 1<<h->sps.log2_max_frame_num;
2414 int field_poc[2];
2415 Picture *cur = s->current_picture_ptr;
2416
2417 h->frame_num_offset= h->prev_frame_num_offset;
2418 if(h->frame_num < h->prev_frame_num)
2419 h->frame_num_offset += max_frame_num;
2420
2421 if(h->sps.poc_type==0){
2422 const int max_poc_lsb= 1<<h->sps.log2_max_poc_lsb;
2423
2424 if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2)
2425 h->poc_msb = h->prev_poc_msb + max_poc_lsb;
2426 else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2)
2427 h->poc_msb = h->prev_poc_msb - max_poc_lsb;
2428 else
2429 h->poc_msb = h->prev_poc_msb;
2430 //printf("poc: %d %d\n", h->poc_msb, h->poc_lsb);
2431 field_poc[0] =
2432 field_poc[1] = h->poc_msb + h->poc_lsb;
2433 if(s->picture_structure == PICT_FRAME)
2434 field_poc[1] += h->delta_poc_bottom;
2435 }else if(h->sps.poc_type==1){
2436 int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
2437 int i;
2438
2439 if(h->sps.poc_cycle_length != 0)
2440 abs_frame_num = h->frame_num_offset + h->frame_num;
2441 else
2442 abs_frame_num = 0;
2443
2444 if(h->nal_ref_idc==0 && abs_frame_num > 0)
2445 abs_frame_num--;
2446
2447 expected_delta_per_poc_cycle = 0;
2448 for(i=0; i < h->sps.poc_cycle_length; i++)
2449 expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse
2450
2451 if(abs_frame_num > 0){
2452 int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length;
2453 int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;
2454
2455 expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;
2456 for(i = 0; i <= frame_num_in_poc_cycle; i++)
2457 expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ];
2458 } else
2459 expectedpoc = 0;
2460
2461 if(h->nal_ref_idc == 0)
2462 expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;
2463
2464 field_poc[0] = expectedpoc + h->delta_poc[0];
2465 field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;
2466
2467 if(s->picture_structure == PICT_FRAME)
2468 field_poc[1] += h->delta_poc[1];
2469 }else{
2470 int poc= 2*(h->frame_num_offset + h->frame_num);
2471
2472 if(!h->nal_ref_idc)
2473 poc--;
2474
2475 field_poc[0]= poc;
2476 field_poc[1]= poc;
2477 }
2478
2479 if(s->picture_structure != PICT_BOTTOM_FIELD)
2480 s->current_picture_ptr->field_poc[0]= field_poc[0];
2481 if(s->picture_structure != PICT_TOP_FIELD)
2482 s->current_picture_ptr->field_poc[1]= field_poc[1];
2483 cur->poc= FFMIN(cur->field_poc[0], cur->field_poc[1]);
2484
2485 return 0;
2486 }
2487
2488
2489 /**
2490 * initialize scan tables
2491 */
2492 static void init_scan_tables(H264Context *h){
2493 int i;
2494 for(i=0; i<16; i++){
2495 #define T(x) (x>>2) | ((x<<2) & 0xF)
2496 h->zigzag_scan[i] = T(zigzag_scan[i]);
2497 h-> field_scan[i] = T( field_scan[i]);
2498 #undef T
2499 }
2500 for(i=0; i<64; i++){
2501 #define T(x) (x>>3) | ((x&7)<<3)
2502 h->zigzag_scan8x8[i] = T(ff_zigzag_direct[i]);
2503 h->zigzag_scan8x8_cavlc[i] = T(zigzag_scan8x8_cavlc[i]);
2504 h->field_scan8x8[i] = T(field_scan8x8[i]);
2505 h->field_scan8x8_cavlc[i] = T(field_scan8x8_cavlc[i]);
2506 #undef T
2507 }
2508 if(h->sps.transform_bypass){ //FIXME same ugly
2509 h->zigzag_scan_q0 = zigzag_scan;
2510 h->zigzag_scan8x8_q0 = ff_zigzag_direct;
2511 h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc;
2512 h->field_scan_q0 = field_scan;
2513 h->field_scan8x8_q0 = field_scan8x8;
2514 h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc;
2515 }else{
2516 h->zigzag_scan_q0 = h->zigzag_scan;
2517 h->zigzag_scan8x8_q0 = h->zigzag_scan8x8;
2518 h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc;
2519 h->field_scan_q0 = h->field_scan;
2520 h->field_scan8x8_q0 = h->field_scan8x8;
2521 h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc;
2522 }
2523 }
2524
2525 static int field_end(H264Context *h, int in_setup){
2526 MpegEncContext * const s = &h->s;
2527 AVCodecContext * const avctx= s->avctx;
2528 int err = 0;
2529 s->mb_y= 0;
2530
2531 if (!in_setup && !s->dropable)
2532 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, (16*s->mb_height >> FIELD_PICTURE) - 1,
2533 s->picture_structure==PICT_BOTTOM_FIELD);
2534
2535 if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
2536 ff_vdpau_h264_set_reference_frames(s);
2537
2538 if(in_setup || !(avctx->active_thread_type&FF_THREAD_FRAME)){
2539 if(!s->dropable) {
2540 err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
2541 h->prev_poc_msb= h->poc_msb;
2542 h->prev_poc_lsb= h->poc_lsb;
2543 }
2544 h->prev_frame_num_offset= h->frame_num_offset;
2545 h->prev_frame_num= h->frame_num;
2546 h->outputed_poc = h->next_outputed_poc;
2547 }
2548
2549 if (avctx->hwaccel) {
2550 if (avctx->hwaccel->end_frame(avctx) < 0)
2551 av_log(avctx, AV_LOG_ERROR, "hardware accelerator failed to decode picture\n");
2552 }
2553
2554 if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
2555 ff_vdpau_h264_picture_complete(s);
2556
2557 /*
2558 * FIXME: Error handling code does not seem to support interlaced
2559 * when slices span multiple rows
2560 * The ff_er_add_slice calls don't work right for bottom
2561 * fields; they cause massive erroneous error concealing
2562 * Error marking covers both fields (top and bottom).
2563 * This causes a mismatched s->error_count
2564 * and a bad error table. Further, the error count goes to
2565 * INT_MAX when called for bottom field, because mb_y is
2566 * past end by one (callers fault) and resync_mb_y != 0
2567 * causes problems for the first MB line, too.
2568 */
2569 if (!FIELD_PICTURE)
2570 ff_er_frame_end(s);
2571
2572 MPV_frame_end(s);
2573
2574 h->current_slice=0;
2575
2576 return err;
2577 }
2578
2579 /**
2580 * Replicate H264 "master" context to thread contexts.
2581 */
2582 static void clone_slice(H264Context *dst, H264Context *src)
2583 {
2584 memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
2585 dst->s.current_picture_ptr = src->s.current_picture_ptr;
2586 dst->s.current_picture = src->s.current_picture;
2587 dst->s.linesize = src->s.linesize;
2588 dst->s.uvlinesize = src->s.uvlinesize;
2589 dst->s.first_field = src->s.first_field;
2590
2591 dst->prev_poc_msb = src->prev_poc_msb;
2592 dst->prev_poc_lsb = src->prev_poc_lsb;
2593 dst->prev_frame_num_offset = src->prev_frame_num_offset;
2594 dst->prev_frame_num = src->prev_frame_num;
2595 dst->short_ref_count = src->short_ref_count;
2596
2597 memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
2598 memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
2599 memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
2600 memcpy(dst->ref_list, src->ref_list, sizeof(dst->ref_list));
2601
2602 memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
2603 memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
2604 }
2605
2606 /**
2607 * Compute profile from profile_idc and constraint_set?_flags.
2608 *
2609 * @param sps SPS
2610 *
2611 * @return profile as defined by FF_PROFILE_H264_*
2612 */
2613 int ff_h264_get_profile(SPS *sps)
2614 {
2615 int profile = sps->profile_idc;
2616
2617 switch(sps->profile_idc) {
2618 case FF_PROFILE_H264_BASELINE:
2619 // constraint_set1_flag set to 1
2620 profile |= (sps->constraint_set_flags & 1<<1) ? FF_PROFILE_H264_CONSTRAINED : 0;
2621 break;
2622 case FF_PROFILE_H264_HIGH_10:
2623 case FF_PROFILE_H264_HIGH_422:
2624 case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
2625 // constraint_set3_flag set to 1
2626 profile |= (sps->constraint_set_flags & 1<<3) ? FF_PROFILE_H264_INTRA : 0;
2627 break;
2628 }
2629
2630 return profile;
2631 }
2632
2633 /**
2634 * Decode a slice header.
2635 * This will also call MPV_common_init() and frame_start() as needed.
2636 *
2637 * @param h h264context
2638 * @param h0 h264 master context (differs from 'h' when doing sliced based parallel decoding)
2639 *
2640 * @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded
2641 */
2642 static int decode_slice_header(H264Context *h, H264Context *h0){
2643 MpegEncContext * const s = &h->s;
2644 MpegEncContext * const s0 = &h0->s;
2645 unsigned int first_mb_in_slice;
2646 unsigned int pps_id;
2647 int num_ref_idx_active_override_flag;
2648 unsigned int slice_type, tmp, i, j;
2649 int default_ref_list_done = 0;
2650 int last_pic_structure;
2651
2652 s->dropable= h->nal_ref_idc == 0;
2653
2654 /* FIXME: 2tap qpel isn't implemented for high bit depth. */
2655 if((s->avctx->flags2 & CODEC_FLAG2_FAST) && !h->nal_ref_idc && !h->pixel_shift){
2656 s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab;
2657 s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab;
2658 }else{
2659 s->me.qpel_put= s->dsp.put_h264_qpel_pixels_tab;
2660 s->me.qpel_avg= s->dsp.avg_h264_qpel_pixels_tab;
2661 }
2662
2663 first_mb_in_slice= get_ue_golomb(&s->gb);
2664
2665 if(first_mb_in_slice == 0){ //FIXME better field boundary detection
2666 if(h0->current_slice && FIELD_PICTURE){
2667 field_end(h, 1);
2668 }
2669
2670 h0->current_slice = 0;
2671 if (!s0->first_field)
2672 s->current_picture_ptr= NULL;
2673 }
2674
2675 slice_type= get_ue_golomb_31(&s->gb);
2676 if(slice_type > 9){
2677 av_log(h->s.avctx, AV_LOG_ERROR, "slice type too large (%d) at %d %d\n", h->slice_type, s->mb_x, s->mb_y);
2678 return -1;
2679 }
2680 if(slice_type > 4){
2681 slice_type -= 5;
2682 h->slice_type_fixed=1;
2683 }else
2684 h->slice_type_fixed=0;
2685
2686 slice_type= golomb_to_pict_type[ slice_type ];
2687 if (slice_type == AV_PICTURE_TYPE_I
2688 || (h0->current_slice != 0 && slice_type == h0->last_slice_type) ) {
2689 default_ref_list_done = 1;
2690 }
2691 h->slice_type= slice_type;
2692 h->slice_type_nos= slice_type & 3;
2693
2694 s->pict_type= h->slice_type; // to make a few old functions happy, it's wrong though
2695
2696 pps_id= get_ue_golomb(&s->gb);
2697 if(pps_id>=MAX_PPS_COUNT){
2698 av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
2699 return -1;
2700 }
2701 if(!h0->pps_buffers[pps_id]) {
2702 av_log(h->s.avctx, AV_LOG_ERROR, "non-existing PPS %u referenced\n", pps_id);
2703 return -1;
2704 }
2705 h->pps= *h0->pps_buffers[pps_id];
2706
2707 if(!h0->sps_buffers[h->pps.sps_id]) {
2708 av_log(h->s.avctx, AV_LOG_ERROR, "non-existing SPS %u referenced\n", h->pps.sps_id);
2709 return -1;
2710 }
2711 h->sps = *h0->sps_buffers[h->pps.sps_id];
2712
2713 s->avctx->profile = ff_h264_get_profile(&h->sps);
2714 s->avctx->level = h->sps.level_idc;
2715 s->avctx->refs = h->sps.ref_frame_count;
2716
2717 if(h == h0 && h->dequant_coeff_pps != pps_id){
2718 h->dequant_coeff_pps = pps_id;
2719 init_dequant_tables(h);
2720 }
2721
2722 s->mb_width= h->sps.mb_width;
2723 s->mb_height= h->sps.mb_height * (2