2 * H.26L/H.264/AVC/JVT/14496-10/... decoder
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
5 * This file is part of Libav.
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.
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.
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
24 * H.264 / AVC / MPEG4 part10 codec.
25 * @author Michael Niedermayer <michaelni@gmx.at>
28 #include "libavutil/imgutils.h"
32 #include "mpegvideo.h"
35 #include "h264_mvpred.h"
38 #include "rectangle.h"
40 #include "vdpau_internal.h"
41 #include "libavutil/avassert.h"
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,
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,
56 static const enum PixelFormat hwaccel_pixfmt_list_h264_jpeg_420[] = {
64 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
66 int ff_h264_check_intra4x4_pred_mode(H264Context *h){
67 MpegEncContext * const s = &h->s;
68 static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0};
69 static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED};
72 if(!(h->top_samples_available&0x8000)){
74 int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ];
76 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 h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
84 if((h->left_samples_available&0x8888)!=0x8888){
85 static const int mask[4]={0x8000,0x2000,0x80,0x20};
87 if(!(h->left_samples_available&mask[i])){
88 int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ];
90 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 h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status;
100 } //FIXME cleanup like ff_h264_check_intra_pred_mode
103 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
105 int ff_h264_check_intra_pred_mode(H264Context *h, int mode){
106 MpegEncContext * const s = &h->s;
107 static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
108 static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
111 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 if(!(h->top_samples_available&0x8000)){
118 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);
123 if((h->left_samples_available&0x8080) != 0x8080){
125 if(h->left_samples_available&0x8080){ //mad cow disease mode, aka MBAFF + constrained_intra_pred
126 mode= ALZHEIMER_DC_L0T_PRED8x8 + (!(h->left_samples_available&0x8000)) + 2*(mode == DC_128_PRED8x8);
129 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);
137 const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length){
142 // src[0]&0x80; //forbidden bit
143 h->nal_ref_idc= src[0]>>5;
144 h->nal_unit_type= src[0]&0x1F;
148 #if HAVE_FAST_UNALIGNED
151 for(i=0; i+1<length; i+=9){
152 if(!((~AV_RN64A(src+i) & (AV_RN64A(src+i) - 0x0100010001000101ULL)) & 0x8000800080008080ULL))
155 for(i=0; i+1<length; i+=5){
156 if(!((~AV_RN32A(src+i) & (AV_RN32A(src+i) - 0x01000101U)) & 0x80008080U))
159 if(i>0 && !src[i]) i--;
163 for(i=0; i+1<length; i+=2){
165 if(i>0 && src[i-1]==0) i--;
167 if(i+2<length && src[i+1]==0 && src[i+2]<=3){
169 /* startcode, so we must be past the end */
177 if(i>=length-1){ //no escaped 0
179 *consumed= length+1; //+1 for the header
183 bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data
184 av_fast_malloc(&h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length+FF_INPUT_BUFFER_PADDING_SIZE);
185 dst= h->rbsp_buffer[bufidx];
191 //printf("decoding esc\n");
195 //remove escapes (very rare 1:2^22)
197 dst[di++]= src[si++];
198 dst[di++]= src[si++];
199 }else if(src[si]==0 && src[si+1]==0){
200 if(src[si+2]==3){ //escape
205 }else //next start code
209 dst[di++]= src[si++];
212 dst[di++]= src[si++];
215 memset(dst+di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
218 *consumed= si + 1;//+1 for the header
219 //FIXME store exact number of bits in the getbitcontext (it is needed for decoding)
224 * Identify the exact end of the bitstream
225 * @return the length of the trailing, or 0 if damaged
227 static int ff_h264_decode_rbsp_trailing(H264Context *h, const uint8_t *src){
231 tprintf(h->s.avctx, "rbsp trailing %X\n", v);
240 static inline int get_lowest_part_list_y(H264Context *h, Picture *pic, int n, int height,
241 int y_offset, int list){
242 int raw_my= h->mv_cache[list][ scan8[n] ][1];
243 int filter_height= (raw_my&3) ? 2 : 0;
244 int full_my= (raw_my>>2) + y_offset;
245 int top = full_my - filter_height, bottom = full_my + height + filter_height;
247 return FFMAX(abs(top), bottom);
250 static inline void get_lowest_part_y(H264Context *h, int refs[2][48], int n, int height,
251 int y_offset, int list0, int list1, int *nrefs){
252 MpegEncContext * const s = &h->s;
255 y_offset += 16*(s->mb_y >> MB_FIELD);
258 int ref_n = h->ref_cache[0][ scan8[n] ];
259 Picture *ref= &h->ref_list[0][ref_n];
261 // Error resilience puts the current picture in the ref list.
262 // Don't try to wait on these as it will cause a deadlock.
263 // Fields can wait on each other, though.
264 if (ref->f.thread_opaque != s->current_picture.f.thread_opaque ||
265 (ref->f.reference & 3) != s->picture_structure) {
266 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 0);
267 if (refs[0][ref_n] < 0) nrefs[0] += 1;
268 refs[0][ref_n] = FFMAX(refs[0][ref_n], my);
273 int ref_n = h->ref_cache[1][ scan8[n] ];
274 Picture *ref= &h->ref_list[1][ref_n];
276 if (ref->f.thread_opaque != s->current_picture.f.thread_opaque ||
277 (ref->f.reference & 3) != s->picture_structure) {
278 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 1);
279 if (refs[1][ref_n] < 0) nrefs[1] += 1;
280 refs[1][ref_n] = FFMAX(refs[1][ref_n], my);
286 * Wait until all reference frames are available for MC operations.
288 * @param h the H264 context
290 static void await_references(H264Context *h){
291 MpegEncContext * const s = &h->s;
292 const int mb_xy= h->mb_xy;
293 const int mb_type = s->current_picture.f.mb_type[mb_xy];
298 memset(refs, -1, sizeof(refs));
300 if(IS_16X16(mb_type)){
301 get_lowest_part_y(h, refs, 0, 16, 0,
302 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
303 }else if(IS_16X8(mb_type)){
304 get_lowest_part_y(h, refs, 0, 8, 0,
305 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
306 get_lowest_part_y(h, refs, 8, 8, 8,
307 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
308 }else if(IS_8X16(mb_type)){
309 get_lowest_part_y(h, refs, 0, 16, 0,
310 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
311 get_lowest_part_y(h, refs, 4, 16, 0,
312 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
316 assert(IS_8X8(mb_type));
319 const int sub_mb_type= h->sub_mb_type[i];
321 int y_offset= (i&2)<<2;
323 if(IS_SUB_8X8(sub_mb_type)){
324 get_lowest_part_y(h, refs, n , 8, y_offset,
325 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
326 }else if(IS_SUB_8X4(sub_mb_type)){
327 get_lowest_part_y(h, refs, n , 4, y_offset,
328 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
329 get_lowest_part_y(h, refs, n+2, 4, y_offset+4,
330 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
331 }else if(IS_SUB_4X8(sub_mb_type)){
332 get_lowest_part_y(h, refs, n , 8, y_offset,
333 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
334 get_lowest_part_y(h, refs, n+1, 8, y_offset,
335 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
338 assert(IS_SUB_4X4(sub_mb_type));
340 int sub_y_offset= y_offset + 2*(j&2);
341 get_lowest_part_y(h, refs, n+j, 4, sub_y_offset,
342 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
348 for(list=h->list_count-1; list>=0; list--){
349 for(ref=0; ref<48 && nrefs[list]; ref++){
350 int row = refs[list][ref];
352 Picture *ref_pic = &h->ref_list[list][ref];
353 int ref_field = ref_pic->f.reference - 1;
354 int ref_field_picture = ref_pic->field_picture;
355 int pic_height = 16*s->mb_height >> ref_field_picture;
360 if(!FIELD_PICTURE && ref_field_picture){ // frame referencing two fields
361 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN((row >> 1) - !(row&1), pic_height-1), 1);
362 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN((row >> 1) , pic_height-1), 0);
363 }else if(FIELD_PICTURE && !ref_field_picture){ // field referencing one field of a frame
364 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row*2 + ref_field , pic_height-1), 0);
365 }else if(FIELD_PICTURE){
366 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row, pic_height-1), ref_field);
368 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row, pic_height-1), 0);
377 * DCT transforms the 16 dc values.
378 * @param qp quantization parameter ??? FIXME
380 static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
381 // const int qmul= dequant_coeff[qp][0];
383 int temp[16]; //FIXME check if this is a good idea
384 static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
385 static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
388 const int offset= y_offset[i];
389 const int z0= block[offset+stride*0] + block[offset+stride*4];
390 const int z1= block[offset+stride*0] - block[offset+stride*4];
391 const int z2= block[offset+stride*1] - block[offset+stride*5];
392 const int z3= block[offset+stride*1] + block[offset+stride*5];
401 const int offset= x_offset[i];
402 const int z0= temp[4*0+i] + temp[4*2+i];
403 const int z1= temp[4*0+i] - temp[4*2+i];
404 const int z2= temp[4*1+i] - temp[4*3+i];
405 const int z3= temp[4*1+i] + temp[4*3+i];
407 block[stride*0 +offset]= (z0 + z3)>>1;
408 block[stride*2 +offset]= (z1 + z2)>>1;
409 block[stride*8 +offset]= (z1 - z2)>>1;
410 block[stride*10+offset]= (z0 - z3)>>1;
419 static void chroma_dc_dct_c(DCTELEM *block){
420 const int stride= 16*2;
421 const int xStride= 16;
424 a= block[stride*0 + xStride*0];
425 b= block[stride*0 + xStride*1];
426 c= block[stride*1 + xStride*0];
427 d= block[stride*1 + xStride*1];
434 block[stride*0 + xStride*0]= (a+c);
435 block[stride*0 + xStride*1]= (e+b);
436 block[stride*1 + xStride*0]= (a-c);
437 block[stride*1 + xStride*1]= (e-b);
441 static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square,
442 int height, int delta, int list,
443 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
444 int src_x_offset, int src_y_offset,
445 qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op,
446 int pixel_shift, int chroma_idc)
448 MpegEncContext * const s = &h->s;
449 const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8;
450 int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8;
451 const int luma_xy= (mx&3) + ((my&3)<<2);
452 int offset = ((mx>>2) << pixel_shift) + (my>>2)*h->mb_linesize;
453 uint8_t * src_y = pic->f.data[0] + offset;
454 uint8_t * src_cb, * src_cr;
455 int extra_width= h->emu_edge_width;
456 int extra_height= h->emu_edge_height;
458 const int full_mx= mx>>2;
459 const int full_my= my>>2;
460 const int pic_width = 16*s->mb_width;
461 const int pic_height = 16*s->mb_height >> MB_FIELD;
464 if(mx&7) extra_width -= 3;
465 if(my&7) extra_height -= 3;
467 if( full_mx < 0-extra_width
468 || full_my < 0-extra_height
469 || full_mx + 16/*FIXME*/ > pic_width + extra_width
470 || full_my + 16/*FIXME*/ > pic_height + extra_height){
471 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_y - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
472 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
473 src_y= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
477 qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); //FIXME try variable height perhaps?
479 qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize);
482 if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return;
484 if(chroma_idc == 3 /* yuv444 */){
485 src_cb = pic->f.data[1] + offset;
487 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cb - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
488 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
489 src_cb= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
491 qpix_op[luma_xy](dest_cb, src_cb, h->mb_linesize); //FIXME try variable height perhaps?
493 qpix_op[luma_xy](dest_cb + delta, src_cb + delta, h->mb_linesize);
496 src_cr = pic->f.data[2] + offset;
498 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cr - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
499 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
500 src_cr= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
502 qpix_op[luma_xy](dest_cr, src_cr, h->mb_linesize); //FIXME try variable height perhaps?
504 qpix_op[luma_xy](dest_cr + delta, src_cr + delta, h->mb_linesize);
509 ysh = 3 - (chroma_idc == 2 /* yuv422 */);
510 if(chroma_idc == 1 /* yuv420 */ && MB_FIELD){
511 // chroma offset when predicting from a field of opposite parity
512 my += 2 * ((s->mb_y & 1) - (pic->f.reference - 1));
513 emu |= (my>>3) < 0 || (my>>3) + 8 >= (pic_height>>1);
516 src_cb = pic->f.data[1] + ((mx >> 3) << pixel_shift) + (my >> ysh) * h->mb_uvlinesize;
517 src_cr = pic->f.data[2] + ((mx >> 3) << pixel_shift) + (my >> ysh) * h->mb_uvlinesize;
520 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cb, h->mb_uvlinesize,
521 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
522 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
523 src_cb= s->edge_emu_buffer;
525 chroma_op(dest_cb, src_cb, h->mb_uvlinesize, height >> (chroma_idc == 1 /* yuv420 */),
526 mx&7, (my << (chroma_idc == 2 /* yuv422 */)) &7);
529 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cr, h->mb_uvlinesize,
530 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
531 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
532 src_cr= s->edge_emu_buffer;
534 chroma_op(dest_cr, src_cr, h->mb_uvlinesize, height >> (chroma_idc == 1 /* yuv420 */),
535 mx&7, (my << (chroma_idc == 2 /* yuv422 */)) &7);
538 static inline void mc_part_std(H264Context *h, int n, int square, int height, int delta,
539 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
540 int x_offset, int y_offset,
541 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
542 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
543 int list0, int list1, int pixel_shift, int chroma_idc)
545 MpegEncContext * const s = &h->s;
546 qpel_mc_func *qpix_op= qpix_put;
547 h264_chroma_mc_func chroma_op= chroma_put;
549 dest_y += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
550 if (chroma_idc == 3 /* yuv444 */) {
551 dest_cb += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
552 dest_cr += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
553 } else if (chroma_idc == 2 /* yuv422 */) {
554 dest_cb += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
555 dest_cr += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
556 } else /* yuv420 */ {
557 dest_cb += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
558 dest_cr += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
560 x_offset += 8*s->mb_x;
561 y_offset += 8*(s->mb_y >> MB_FIELD);
564 Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ];
565 mc_dir_part(h, ref, n, square, height, delta, 0,
566 dest_y, dest_cb, dest_cr, x_offset, y_offset,
567 qpix_op, chroma_op, pixel_shift, chroma_idc);
570 chroma_op= chroma_avg;
574 Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ];
575 mc_dir_part(h, ref, n, square, height, delta, 1,
576 dest_y, dest_cb, dest_cr, x_offset, y_offset,
577 qpix_op, chroma_op, pixel_shift, chroma_idc);
581 static inline void mc_part_weighted(H264Context *h, int n, int square, int height, int delta,
582 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
583 int x_offset, int y_offset,
584 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
585 h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op,
586 h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg,
587 int list0, int list1, int pixel_shift, int chroma_idc){
588 MpegEncContext * const s = &h->s;
591 dest_y += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
592 if (chroma_idc == 3 /* yuv444 */) {
593 chroma_height = height;
594 chroma_weight_avg = luma_weight_avg;
595 chroma_weight_op = luma_weight_op;
596 dest_cb += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
597 dest_cr += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
598 } else if (chroma_idc == 2 /* yuv422 */) {
599 chroma_height = height;
600 dest_cb += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
601 dest_cr += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
602 } else /* yuv420 */ {
603 chroma_height = height >> 1;
604 dest_cb += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
605 dest_cr += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
607 x_offset += 8*s->mb_x;
608 y_offset += 8*(s->mb_y >> MB_FIELD);
611 /* don't optimize for luma-only case, since B-frames usually
612 * use implicit weights => chroma too. */
613 uint8_t *tmp_cb = s->obmc_scratchpad;
614 uint8_t *tmp_cr = s->obmc_scratchpad + (16 << pixel_shift);
615 uint8_t *tmp_y = s->obmc_scratchpad + 16*h->mb_uvlinesize;
616 int refn0 = h->ref_cache[0][ scan8[n] ];
617 int refn1 = h->ref_cache[1][ scan8[n] ];
619 mc_dir_part(h, &h->ref_list[0][refn0], n, square, height, delta, 0,
620 dest_y, dest_cb, dest_cr,
621 x_offset, y_offset, qpix_put, chroma_put,
622 pixel_shift, chroma_idc);
623 mc_dir_part(h, &h->ref_list[1][refn1], n, square, height, delta, 1,
624 tmp_y, tmp_cb, tmp_cr,
625 x_offset, y_offset, qpix_put, chroma_put,
626 pixel_shift, chroma_idc);
628 if(h->use_weight == 2){
629 int weight0 = h->implicit_weight[refn0][refn1][s->mb_y&1];
630 int weight1 = 64 - weight0;
631 luma_weight_avg( dest_y, tmp_y, h-> mb_linesize,
632 height, 5, weight0, weight1, 0);
633 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize,
634 chroma_height, 5, weight0, weight1, 0);
635 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize,
636 chroma_height, 5, weight0, weight1, 0);
638 luma_weight_avg(dest_y, tmp_y, h->mb_linesize, height, h->luma_log2_weight_denom,
639 h->luma_weight[refn0][0][0] , h->luma_weight[refn1][1][0],
640 h->luma_weight[refn0][0][1] + h->luma_weight[refn1][1][1]);
641 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
642 h->chroma_weight[refn0][0][0][0] , h->chroma_weight[refn1][1][0][0],
643 h->chroma_weight[refn0][0][0][1] + h->chroma_weight[refn1][1][0][1]);
644 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
645 h->chroma_weight[refn0][0][1][0] , h->chroma_weight[refn1][1][1][0],
646 h->chroma_weight[refn0][0][1][1] + h->chroma_weight[refn1][1][1][1]);
649 int list = list1 ? 1 : 0;
650 int refn = h->ref_cache[list][ scan8[n] ];
651 Picture *ref= &h->ref_list[list][refn];
652 mc_dir_part(h, ref, n, square, height, delta, list,
653 dest_y, dest_cb, dest_cr, x_offset, y_offset,
654 qpix_put, chroma_put, pixel_shift, chroma_idc);
656 luma_weight_op(dest_y, h->mb_linesize, height, h->luma_log2_weight_denom,
657 h->luma_weight[refn][list][0], h->luma_weight[refn][list][1]);
658 if(h->use_weight_chroma){
659 chroma_weight_op(dest_cb, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
660 h->chroma_weight[refn][list][0][0], h->chroma_weight[refn][list][0][1]);
661 chroma_weight_op(dest_cr, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
662 h->chroma_weight[refn][list][1][0], h->chroma_weight[refn][list][1][1]);
667 static inline void mc_part(H264Context *h, int n, int square, int height, int delta,
668 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
669 int x_offset, int y_offset,
670 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
671 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
672 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
673 int list0, int list1, int pixel_shift, int chroma_idc)
675 if((h->use_weight==2 && list0 && list1
676 && (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ][h->s.mb_y&1] != 32))
678 mc_part_weighted(h, n, square, height, delta, dest_y, dest_cb, dest_cr,
679 x_offset, y_offset, qpix_put, chroma_put,
680 weight_op[0], weight_op[1], weight_avg[0],
681 weight_avg[1], list0, list1, pixel_shift, chroma_idc);
683 mc_part_std(h, n, square, height, delta, dest_y, dest_cb, dest_cr,
684 x_offset, y_offset, qpix_put, chroma_put, qpix_avg,
685 chroma_avg, list0, list1, pixel_shift, chroma_idc);
688 static inline void prefetch_motion(H264Context *h, int list, int pixel_shift, int chroma_idc){
689 /* fetch pixels for estimated mv 4 macroblocks ahead
690 * optimized for 64byte cache lines */
691 MpegEncContext * const s = &h->s;
692 const int refn = h->ref_cache[list][scan8[0]];
694 const int mx= (h->mv_cache[list][scan8[0]][0]>>2) + 16*s->mb_x + 8;
695 const int my= (h->mv_cache[list][scan8[0]][1]>>2) + 16*s->mb_y;
696 uint8_t **src = h->ref_list[list][refn].f.data;
697 int off= (mx << pixel_shift) + (my + (s->mb_x&3)*4)*h->mb_linesize + (64 << pixel_shift);
698 s->dsp.prefetch(src[0]+off, s->linesize, 4);
699 if (chroma_idc == 3 /* yuv444 */) {
700 s->dsp.prefetch(src[1]+off, s->linesize, 4);
701 s->dsp.prefetch(src[2]+off, s->linesize, 4);
703 off= ((mx>>1) << pixel_shift) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + (64 << pixel_shift);
704 s->dsp.prefetch(src[1]+off, src[2]-src[1], 2);
709 static av_always_inline void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
710 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
711 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
712 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
713 int pixel_shift, int chroma_idc)
715 MpegEncContext * const s = &h->s;
716 const int mb_xy= h->mb_xy;
717 const int mb_type = s->current_picture.f.mb_type[mb_xy];
719 assert(IS_INTER(mb_type));
721 if(HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME))
723 prefetch_motion(h, 0, pixel_shift, chroma_idc);
725 if(IS_16X16(mb_type)){
726 mc_part(h, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0,
727 qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
728 weight_op, weight_avg,
729 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
730 pixel_shift, chroma_idc);
731 }else if(IS_16X8(mb_type)){
732 mc_part(h, 0, 0, 8, 8 << pixel_shift, dest_y, dest_cb, dest_cr, 0, 0,
733 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
734 weight_op, weight_avg,
735 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
736 pixel_shift, chroma_idc);
737 mc_part(h, 8, 0, 8, 8 << pixel_shift, dest_y, dest_cb, dest_cr, 0, 4,
738 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
739 weight_op, weight_avg,
740 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1),
741 pixel_shift, chroma_idc);
742 }else if(IS_8X16(mb_type)){
743 mc_part(h, 0, 0, 16, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
744 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
745 &weight_op[1], &weight_avg[1],
746 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
747 pixel_shift, chroma_idc);
748 mc_part(h, 4, 0, 16, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
749 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
750 &weight_op[1], &weight_avg[1],
751 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1),
752 pixel_shift, chroma_idc);
756 assert(IS_8X8(mb_type));
759 const int sub_mb_type= h->sub_mb_type[i];
761 int x_offset= (i&1)<<2;
762 int y_offset= (i&2)<<1;
764 if(IS_SUB_8X8(sub_mb_type)){
765 mc_part(h, n, 1, 8, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset,
766 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
767 &weight_op[1], &weight_avg[1],
768 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
769 pixel_shift, chroma_idc);
770 }else if(IS_SUB_8X4(sub_mb_type)){
771 mc_part(h, n , 0, 4, 4 << pixel_shift, dest_y, dest_cb, dest_cr, x_offset, y_offset,
772 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
773 &weight_op[1], &weight_avg[1],
774 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
775 pixel_shift, chroma_idc);
776 mc_part(h, n+2, 0, 4, 4 << pixel_shift, dest_y, dest_cb, dest_cr, x_offset, y_offset+2,
777 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
778 &weight_op[1], &weight_avg[1],
779 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
780 pixel_shift, chroma_idc);
781 }else if(IS_SUB_4X8(sub_mb_type)){
782 mc_part(h, n , 0, 8, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset,
783 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
784 &weight_op[2], &weight_avg[2],
785 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
786 pixel_shift, chroma_idc);
787 mc_part(h, n+1, 0, 8, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset,
788 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
789 &weight_op[2], &weight_avg[2],
790 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
791 pixel_shift, chroma_idc);
794 assert(IS_SUB_4X4(sub_mb_type));
796 int sub_x_offset= x_offset + 2*(j&1);
797 int sub_y_offset= y_offset + (j&2);
798 mc_part(h, n+j, 1, 4, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
799 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
800 &weight_op[2], &weight_avg[2],
801 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
802 pixel_shift, chroma_idc);
808 prefetch_motion(h, 1, pixel_shift, chroma_idc);
811 static av_always_inline void
812 hl_motion_420(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
813 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
814 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
815 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
818 hl_motion(h, dest_y, dest_cb, dest_cr, qpix_put, chroma_put,
819 qpix_avg, chroma_avg, weight_op, weight_avg, pixel_shift, 1);
822 static av_always_inline void
823 hl_motion_422(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
824 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
825 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
826 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
829 hl_motion(h, dest_y, dest_cb, dest_cr, qpix_put, chroma_put,
830 qpix_avg, chroma_avg, weight_op, weight_avg, pixel_shift, 2);
833 static void free_tables(H264Context *h, int free_rbsp){
837 av_freep(&h->intra4x4_pred_mode);
838 av_freep(&h->chroma_pred_mode_table);
839 av_freep(&h->cbp_table);
840 av_freep(&h->mvd_table[0]);
841 av_freep(&h->mvd_table[1]);
842 av_freep(&h->direct_table);
843 av_freep(&h->non_zero_count);
844 av_freep(&h->slice_table_base);
845 h->slice_table= NULL;
846 av_freep(&h->list_counts);
848 av_freep(&h->mb2b_xy);
849 av_freep(&h->mb2br_xy);
851 for(i = 0; i < MAX_THREADS; i++) {
852 hx = h->thread_context[i];
854 av_freep(&hx->top_borders[1]);
855 av_freep(&hx->top_borders[0]);
856 av_freep(&hx->s.obmc_scratchpad);
858 av_freep(&hx->rbsp_buffer[1]);
859 av_freep(&hx->rbsp_buffer[0]);
860 hx->rbsp_buffer_size[0] = 0;
861 hx->rbsp_buffer_size[1] = 0;
863 if (i) av_freep(&h->thread_context[i]);
867 static void init_dequant8_coeff_table(H264Context *h){
869 const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
872 h->dequant8_coeff[i] = h->dequant8_buffer[i];
874 if(!memcmp(h->pps.scaling_matrix8[j], h->pps.scaling_matrix8[i], 64*sizeof(uint8_t))){
875 h->dequant8_coeff[i] = h->dequant8_buffer[j];
882 for(q=0; q<max_qp+1; q++){
886 h->dequant8_coeff[i][q][(x>>3)|((x&7)<<3)] =
887 ((uint32_t)dequant8_coeff_init[idx][ dequant8_coeff_init_scan[((x>>1)&12) | (x&3)] ] *
888 h->pps.scaling_matrix8[i][x]) << shift;
893 static void init_dequant4_coeff_table(H264Context *h){
895 const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
897 h->dequant4_coeff[i] = h->dequant4_buffer[i];
899 if(!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], 16*sizeof(uint8_t))){
900 h->dequant4_coeff[i] = h->dequant4_buffer[j];
907 for(q=0; q<max_qp+1; q++){
908 int shift = div6[q] + 2;
911 h->dequant4_coeff[i][q][(x>>2)|((x<<2)&0xF)] =
912 ((uint32_t)dequant4_coeff_init[idx][(x&1) + ((x>>2)&1)] *
913 h->pps.scaling_matrix4[i][x]) << shift;
918 static void init_dequant_tables(H264Context *h){
920 init_dequant4_coeff_table(h);
921 if(h->pps.transform_8x8_mode)
922 init_dequant8_coeff_table(h);
923 if(h->sps.transform_bypass){
926 h->dequant4_coeff[i][0][x] = 1<<6;
927 if(h->pps.transform_8x8_mode)
930 h->dequant8_coeff[i][0][x] = 1<<6;
935 int ff_h264_alloc_tables(H264Context *h){
936 MpegEncContext * const s = &h->s;
937 const int big_mb_num= s->mb_stride * (s->mb_height+1);
938 const int row_mb_num= 2*s->mb_stride*s->avctx->thread_count;
941 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->intra4x4_pred_mode, row_mb_num * 8 * sizeof(uint8_t), fail)
943 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->non_zero_count , big_mb_num * 48 * sizeof(uint8_t), fail)
944 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->slice_table_base , (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base), fail)
945 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->cbp_table, big_mb_num * sizeof(uint16_t), fail)
947 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t), fail)
948 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[0], 16*row_mb_num * sizeof(uint8_t), fail);
949 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[1], 16*row_mb_num * sizeof(uint8_t), fail);
950 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->direct_table, 4*big_mb_num * sizeof(uint8_t) , fail);
951 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->list_counts, big_mb_num * sizeof(uint8_t), fail)
953 memset(h->slice_table_base, -1, (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base));
954 h->slice_table= h->slice_table_base + s->mb_stride*2 + 1;
956 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2b_xy , big_mb_num * sizeof(uint32_t), fail);
957 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2br_xy , big_mb_num * sizeof(uint32_t), fail);
958 for(y=0; y<s->mb_height; y++){
959 for(x=0; x<s->mb_width; x++){
960 const int mb_xy= x + y*s->mb_stride;
961 const int b_xy = 4*x + 4*y*h->b_stride;
963 h->mb2b_xy [mb_xy]= b_xy;
964 h->mb2br_xy[mb_xy]= 8*(FMO ? mb_xy : (mb_xy % (2*s->mb_stride)));
968 s->obmc_scratchpad = NULL;
970 if(!h->dequant4_coeff[0])
971 init_dequant_tables(h);
980 * Mimic alloc_tables(), but for every context thread.
982 static void clone_tables(H264Context *dst, H264Context *src, int i){
983 MpegEncContext * const s = &src->s;
984 dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i*8*2*s->mb_stride;
985 dst->non_zero_count = src->non_zero_count;
986 dst->slice_table = src->slice_table;
987 dst->cbp_table = src->cbp_table;
988 dst->mb2b_xy = src->mb2b_xy;
989 dst->mb2br_xy = src->mb2br_xy;
990 dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
991 dst->mvd_table[0] = src->mvd_table[0] + i*8*2*s->mb_stride;
992 dst->mvd_table[1] = src->mvd_table[1] + i*8*2*s->mb_stride;
993 dst->direct_table = src->direct_table;
994 dst->list_counts = src->list_counts;
996 dst->s.obmc_scratchpad = NULL;
997 ff_h264_pred_init(&dst->hpc, src->s.codec_id, src->sps.bit_depth_luma, src->sps.chroma_format_idc);
1002 * Allocate buffers which are not shared amongst multiple threads.
1004 static int context_init(H264Context *h){
1005 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[0], h->s.mb_width * 16*3 * sizeof(uint8_t)*2, fail)
1006 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[1], h->s.mb_width * 16*3 * sizeof(uint8_t)*2, fail)
1008 h->ref_cache[0][scan8[5 ]+1] = h->ref_cache[0][scan8[7 ]+1] = h->ref_cache[0][scan8[13]+1] =
1009 h->ref_cache[1][scan8[5 ]+1] = h->ref_cache[1][scan8[7 ]+1] = h->ref_cache[1][scan8[13]+1] = PART_NOT_AVAILABLE;
1013 return -1; // free_tables will clean up for us
1016 static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size);
1018 static av_cold void common_init(H264Context *h){
1019 MpegEncContext * const s = &h->s;
1021 s->width = s->avctx->width;
1022 s->height = s->avctx->height;
1023 s->codec_id= s->avctx->codec->id;
1025 ff_h264dsp_init(&h->h264dsp, 8, 1);
1026 ff_h264_pred_init(&h->hpc, s->codec_id, 8, 1);
1028 h->dequant_coeff_pps= -1;
1029 s->unrestricted_mv=1;
1030 s->decode=1; //FIXME
1032 dsputil_init(&s->dsp, s->avctx); // needed so that idct permutation is known early
1034 memset(h->pps.scaling_matrix4, 16, 6*16*sizeof(uint8_t));
1035 memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t));
1038 int ff_h264_decode_extradata(H264Context *h)
1040 AVCodecContext *avctx = h->s.avctx;
1042 if(avctx->extradata[0] == 1){
1043 int i, cnt, nalsize;
1044 unsigned char *p = avctx->extradata;
1048 if(avctx->extradata_size < 7) {
1049 av_log(avctx, AV_LOG_ERROR, "avcC too short\n");
1052 /* sps and pps in the avcC always have length coded with 2 bytes,
1053 so put a fake nal_length_size = 2 while parsing them */
1054 h->nal_length_size = 2;
1055 // Decode sps from avcC
1056 cnt = *(p+5) & 0x1f; // Number of sps
1058 for (i = 0; i < cnt; i++) {
1059 nalsize = AV_RB16(p) + 2;
1060 if (p - avctx->extradata + nalsize > avctx->extradata_size)
1062 if(decode_nal_units(h, p, nalsize) < 0) {
1063 av_log(avctx, AV_LOG_ERROR, "Decoding sps %d from avcC failed\n", i);
1068 // Decode pps from avcC
1069 cnt = *(p++); // Number of pps
1070 for (i = 0; i < cnt; i++) {
1071 nalsize = AV_RB16(p) + 2;
1072 if (p - avctx->extradata + nalsize > avctx->extradata_size)
1074 if (decode_nal_units(h, p, nalsize) < 0) {
1075 av_log(avctx, AV_LOG_ERROR, "Decoding pps %d from avcC failed\n", i);
1080 // Now store right nal length size, that will be use to parse all other nals
1081 h->nal_length_size = (avctx->extradata[4] & 0x03) + 1;
1084 if(decode_nal_units(h, avctx->extradata, avctx->extradata_size) < 0)
1090 av_cold int ff_h264_decode_init(AVCodecContext *avctx){
1091 H264Context *h= avctx->priv_data;
1092 MpegEncContext * const s = &h->s;
1094 MPV_decode_defaults(s);
1099 s->out_format = FMT_H264;
1100 s->workaround_bugs= avctx->workaround_bugs;
1103 // s->decode_mb= ff_h263_decode_mb;
1104 s->quarter_sample = 1;
1105 if(!avctx->has_b_frames)
1108 avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
1110 ff_h264_decode_init_vlc();
1113 h->sps.bit_depth_luma = avctx->bits_per_raw_sample = 8;
1115 h->thread_context[0] = h;
1116 h->outputed_poc = h->next_outputed_poc = INT_MIN;
1117 h->prev_poc_msb= 1<<16;
1119 ff_h264_reset_sei(h);
1120 if(avctx->codec_id == CODEC_ID_H264){
1121 if(avctx->ticks_per_frame == 1){
1122 s->avctx->time_base.den *=2;
1124 avctx->ticks_per_frame = 2;
1127 if(avctx->extradata_size > 0 && avctx->extradata &&
1128 ff_h264_decode_extradata(h))
1131 if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames < h->sps.num_reorder_frames){
1132 s->avctx->has_b_frames = h->sps.num_reorder_frames;
1139 #define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b)+(size))))
1140 static void copy_picture_range(Picture **to, Picture **from, int count, MpegEncContext *new_base, MpegEncContext *old_base)
1144 for (i=0; i<count; i++){
1145 assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) ||
1146 IN_RANGE(from[i], old_base->picture, sizeof(Picture) * old_base->picture_count) ||
1148 to[i] = REBASE_PICTURE(from[i], new_base, old_base);
1152 static void copy_parameter_set(void **to, void **from, int count, int size)
1156 for (i=0; i<count; i++){
1157 if (to[i] && !from[i]) av_freep(&to[i]);
1158 else if (from[i] && !to[i]) to[i] = av_malloc(size);
1160 if (from[i]) memcpy(to[i], from[i], size);
1164 static int decode_init_thread_copy(AVCodecContext *avctx){
1165 H264Context *h= avctx->priv_data;
1167 if (!avctx->is_copy) return 0;
1168 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1169 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
1174 #define copy_fields(to, from, start_field, end_field) memcpy(&to->start_field, &from->start_field, (char*)&to->end_field - (char*)&to->start_field)
1175 static int decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src){
1176 H264Context *h= dst->priv_data, *h1= src->priv_data;
1177 MpegEncContext * const s = &h->s, * const s1 = &h1->s;
1178 int inited = s->context_initialized, err;
1181 if(dst == src || !s1->context_initialized) return 0;
1183 err = ff_mpeg_update_thread_context(dst, src);
1186 //FIXME handle width/height changing
1188 for(i = 0; i < MAX_SPS_COUNT; i++)
1189 av_freep(h->sps_buffers + i);
1191 for(i = 0; i < MAX_PPS_COUNT; i++)
1192 av_freep(h->pps_buffers + i);
1194 memcpy(&h->s + 1, &h1->s + 1, sizeof(H264Context) - sizeof(MpegEncContext)); //copy all fields after MpegEnc
1195 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1196 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
1197 if (ff_h264_alloc_tables(h) < 0) {
1198 av_log(dst, AV_LOG_ERROR, "Could not allocate memory for h264\n");
1199 return AVERROR(ENOMEM);
1204 h->rbsp_buffer[i] = NULL;
1205 h->rbsp_buffer_size[i] = 0;
1208 h->thread_context[0] = h;
1210 // frame_start may not be called for the next thread (if it's decoding a bottom field)
1211 // so this has to be allocated here
1212 h->s.obmc_scratchpad = av_malloc(16*6*s->linesize);
1214 s->dsp.clear_blocks(h->mb);
1215 s->dsp.clear_blocks(h->mb+(24*16<<h->pixel_shift));
1218 //extradata/NAL handling
1219 h->is_avc = h1->is_avc;
1222 copy_parameter_set((void**)h->sps_buffers, (void**)h1->sps_buffers, MAX_SPS_COUNT, sizeof(SPS));
1224 copy_parameter_set((void**)h->pps_buffers, (void**)h1->pps_buffers, MAX_PPS_COUNT, sizeof(PPS));
1227 //Dequantization matrices
1228 //FIXME these are big - can they be only copied when PPS changes?
1229 copy_fields(h, h1, dequant4_buffer, dequant4_coeff);
1232 h->dequant4_coeff[i] = h->dequant4_buffer[0] + (h1->dequant4_coeff[i] - h1->dequant4_buffer[0]);
1235 h->dequant8_coeff[i] = h->dequant8_buffer[0] + (h1->dequant8_coeff[i] - h1->dequant8_buffer[0]);
1237 h->dequant_coeff_pps = h1->dequant_coeff_pps;
1240 copy_fields(h, h1, poc_lsb, redundant_pic_count);
1243 copy_fields(h, h1, ref_count, list_count);
1244 copy_fields(h, h1, ref_list, intra_gb);
1245 copy_fields(h, h1, short_ref, cabac_init_idc);
1247 copy_picture_range(h->short_ref, h1->short_ref, 32, s, s1);
1248 copy_picture_range(h->long_ref, h1->long_ref, 32, s, s1);
1249 copy_picture_range(h->delayed_pic, h1->delayed_pic, MAX_DELAYED_PIC_COUNT+2, s, s1);
1251 h->last_slice_type = h1->last_slice_type;
1253 if(!s->current_picture_ptr) return 0;
1256 err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
1257 h->prev_poc_msb = h->poc_msb;
1258 h->prev_poc_lsb = h->poc_lsb;
1260 h->prev_frame_num_offset= h->frame_num_offset;
1261 h->prev_frame_num = h->frame_num;
1262 h->outputed_poc = h->next_outputed_poc;
1267 int ff_h264_frame_start(H264Context *h){
1268 MpegEncContext * const s = &h->s;
1270 const int pixel_shift = h->pixel_shift;
1271 int thread_count = (s->avctx->active_thread_type & FF_THREAD_SLICE) ? s->avctx->thread_count : 1;
1273 if(MPV_frame_start(s, s->avctx) < 0)
1275 ff_er_frame_start(s);
1277 * MPV_frame_start uses pict_type to derive key_frame.
1278 * This is incorrect for H.264; IDR markings must be used.
1279 * Zero here; IDR markings per slice in frame or fields are ORed in later.
1280 * See decode_nal_units().
1282 s->current_picture_ptr->f.key_frame = 0;
1283 s->current_picture_ptr->mmco_reset= 0;
1285 assert(s->linesize && s->uvlinesize);
1287 for(i=0; i<16; i++){
1288 h->block_offset[i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 4*s->linesize*((scan8[i] - scan8[0])>>3);
1289 h->block_offset[48+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 8*s->linesize*((scan8[i] - scan8[0])>>3);
1291 for(i=0; i<16; i++){
1292 h->block_offset[16+i]=
1293 h->block_offset[32+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3);
1294 h->block_offset[48+16+i]=
1295 h->block_offset[48+32+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 8*s->uvlinesize*((scan8[i] - scan8[0])>>3);
1298 /* can't be in alloc_tables because linesize isn't known there.
1299 * FIXME: redo bipred weight to not require extra buffer? */
1300 for(i = 0; i < thread_count; i++)
1301 if(h->thread_context[i] && !h->thread_context[i]->s.obmc_scratchpad)
1302 h->thread_context[i]->s.obmc_scratchpad = av_malloc(16*6*s->linesize);
1304 /* some macroblocks can be accessed before they're available in case of lost slices, mbaff or threading*/
1305 memset(h->slice_table, -1, (s->mb_height*s->mb_stride-1) * sizeof(*h->slice_table));
1307 // s->decode = (s->flags & CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.f.reference /*|| h->contains_intra*/ || 1;
1309 // We mark the current picture as non-reference after allocating it, so
1310 // that if we break out due to an error it can be released automatically
1311 // in the next MPV_frame_start().
1312 // SVQ3 as well as most other codecs have only last/next/current and thus
1313 // get released even with set reference, besides SVQ3 and others do not
1314 // mark frames as reference later "naturally".
1315 if(s->codec_id != CODEC_ID_SVQ3)
1316 s->current_picture_ptr->f.reference = 0;
1318 s->current_picture_ptr->field_poc[0]=
1319 s->current_picture_ptr->field_poc[1]= INT_MAX;
1321 h->next_output_pic = NULL;
1323 assert(s->current_picture_ptr->long_ref==0);
1329 * Run setup operations that must be run after slice header decoding.
1330 * This includes finding the next displayed frame.
1332 * @param h h264 master context
1333 * @param setup_finished enough NALs have been read that we can call
1334 * ff_thread_finish_setup()
1336 static void decode_postinit(H264Context *h, int setup_finished){
1337 MpegEncContext * const s = &h->s;
1338 Picture *out = s->current_picture_ptr;
1339 Picture *cur = s->current_picture_ptr;
1340 int i, pics, out_of_order, out_idx;
1342 s->current_picture_ptr->f.qscale_type = FF_QSCALE_TYPE_H264;
1343 s->current_picture_ptr->f.pict_type = s->pict_type;
1345 if (h->next_output_pic) return;
1347 if (cur->field_poc[0]==INT_MAX || cur->field_poc[1]==INT_MAX) {
1348 //FIXME: if we have two PAFF fields in one packet, we can't start the next thread here.
1349 //If we have one field per packet, we can. The check in decode_nal_units() is not good enough
1350 //to find this yet, so we assume the worst for now.
1351 //if (setup_finished)
1352 // ff_thread_finish_setup(s->avctx);
1356 cur->f.interlaced_frame = 0;
1357 cur->f.repeat_pict = 0;
1359 /* Signal interlacing information externally. */
1360 /* Prioritize picture timing SEI information over used decoding process if it exists. */
1362 if(h->sps.pic_struct_present_flag){
1363 switch (h->sei_pic_struct)
1365 case SEI_PIC_STRUCT_FRAME:
1367 case SEI_PIC_STRUCT_TOP_FIELD:
1368 case SEI_PIC_STRUCT_BOTTOM_FIELD:
1369 cur->f.interlaced_frame = 1;
1371 case SEI_PIC_STRUCT_TOP_BOTTOM:
1372 case SEI_PIC_STRUCT_BOTTOM_TOP:
1373 if (FIELD_OR_MBAFF_PICTURE)
1374 cur->f.interlaced_frame = 1;
1376 // try to flag soft telecine progressive
1377 cur->f.interlaced_frame = h->prev_interlaced_frame;
1379 case SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1380 case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1381 // Signal the possibility of telecined film externally (pic_struct 5,6)
1382 // From these hints, let the applications decide if they apply deinterlacing.
1383 cur->f.repeat_pict = 1;
1385 case SEI_PIC_STRUCT_FRAME_DOUBLING:
1386 // Force progressive here, as doubling interlaced frame is a bad idea.
1387 cur->f.repeat_pict = 2;
1389 case SEI_PIC_STRUCT_FRAME_TRIPLING:
1390 cur->f.repeat_pict = 4;
1394 if ((h->sei_ct_type & 3) && h->sei_pic_struct <= SEI_PIC_STRUCT_BOTTOM_TOP)
1395 cur->f.interlaced_frame = (h->sei_ct_type & (1 << 1)) != 0;
1397 /* Derive interlacing flag from used decoding process. */
1398 cur->f.interlaced_frame = FIELD_OR_MBAFF_PICTURE;
1400 h->prev_interlaced_frame = cur->f.interlaced_frame;
1402 if (cur->field_poc[0] != cur->field_poc[1]){
1403 /* Derive top_field_first from field pocs. */
1404 cur->f.top_field_first = cur->field_poc[0] < cur->field_poc[1];
1406 if (cur->f.interlaced_frame || h->sps.pic_struct_present_flag) {
1407 /* Use picture timing SEI information. Even if it is a information of a past frame, better than nothing. */
1408 if(h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM
1409 || h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1410 cur->f.top_field_first = 1;
1412 cur->f.top_field_first = 0;
1414 /* Most likely progressive */
1415 cur->f.top_field_first = 0;
1419 //FIXME do something with unavailable reference frames
1421 /* Sort B-frames into display order */
1423 if(h->sps.bitstream_restriction_flag
1424 && s->avctx->has_b_frames < h->sps.num_reorder_frames){
1425 s->avctx->has_b_frames = h->sps.num_reorder_frames;
1429 if( s->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT
1430 && !h->sps.bitstream_restriction_flag){
1431 s->avctx->has_b_frames= MAX_DELAYED_PIC_COUNT;
1436 while(h->delayed_pic[pics]) pics++;
1438 assert(pics <= MAX_DELAYED_PIC_COUNT);
1440 h->delayed_pic[pics++] = cur;
1441 if (cur->f.reference == 0)
1442 cur->f.reference = DELAYED_PIC_REF;
1444 out = h->delayed_pic[0];
1446 for (i = 1; h->delayed_pic[i] && !h->delayed_pic[i]->f.key_frame && !h->delayed_pic[i]->mmco_reset; i++)
1447 if(h->delayed_pic[i]->poc < out->poc){
1448 out = h->delayed_pic[i];
1451 if (s->avctx->has_b_frames == 0 && (h->delayed_pic[0]->f.key_frame || h->delayed_pic[0]->mmco_reset))
1452 h->next_outputed_poc= INT_MIN;
1453 out_of_order = out->poc < h->next_outputed_poc;
1455 if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames >= h->sps.num_reorder_frames)
1457 else if((out_of_order && pics-1 == s->avctx->has_b_frames && s->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT)
1459 ((h->next_outputed_poc != INT_MIN && out->poc > h->next_outputed_poc + 2)
1460 || cur->f.pict_type == AV_PICTURE_TYPE_B)))
1463 s->avctx->has_b_frames++;
1466 if(out_of_order || pics > s->avctx->has_b_frames){
1467 out->f.reference &= ~DELAYED_PIC_REF;
1468 out->owner2 = s; // for frame threading, the owner must be the second field's thread
1469 // or else the first thread can release the picture and reuse it unsafely
1470 for(i=out_idx; h->delayed_pic[i]; i++)
1471 h->delayed_pic[i] = h->delayed_pic[i+1];
1473 if(!out_of_order && pics > s->avctx->has_b_frames){
1474 h->next_output_pic = out;
1475 if (out_idx == 0 && h->delayed_pic[0] && (h->delayed_pic[0]->f.key_frame || h->delayed_pic[0]->mmco_reset)) {
1476 h->next_outputed_poc = INT_MIN;
1478 h->next_outputed_poc = out->poc;
1480 av_log(s->avctx, AV_LOG_DEBUG, "no picture\n");
1484 ff_thread_finish_setup(s->avctx);
1487 static av_always_inline void backup_mb_border(H264Context *h, uint8_t *src_y,
1488 uint8_t *src_cb, uint8_t *src_cr,
1489 int linesize, int uvlinesize, int simple)
1491 MpegEncContext * const s = &h->s;
1492 uint8_t *top_border;
1494 const int pixel_shift = h->pixel_shift;
1495 int chroma444 = CHROMA444;
1496 int chroma422 = CHROMA422;
1499 src_cb -= uvlinesize;
1500 src_cr -= uvlinesize;
1502 if(!simple && FRAME_MBAFF){
1505 top_border = h->top_borders[0][s->mb_x];
1506 AV_COPY128(top_border, src_y + 15*linesize);
1508 AV_COPY128(top_border+16, src_y+15*linesize+16);
1509 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1512 AV_COPY128(top_border+32, src_cb + 15*uvlinesize);
1513 AV_COPY128(top_border+48, src_cb + 15*uvlinesize+16);
1514 AV_COPY128(top_border+64, src_cr + 15*uvlinesize);
1515 AV_COPY128(top_border+80, src_cr + 15*uvlinesize+16);
1517 AV_COPY128(top_border+16, src_cb + 15*uvlinesize);
1518 AV_COPY128(top_border+32, src_cr + 15*uvlinesize);
1520 } else if(chroma422) {
1522 AV_COPY128(top_border+32, src_cb + 15*uvlinesize);
1523 AV_COPY128(top_border+48, src_cr + 15*uvlinesize);
1525 AV_COPY64(top_border+16, src_cb + 15*uvlinesize);
1526 AV_COPY64(top_border+24, src_cr + 15*uvlinesize);
1530 AV_COPY128(top_border+32, src_cb+7*uvlinesize);
1531 AV_COPY128(top_border+48, src_cr+7*uvlinesize);
1533 AV_COPY64(top_border+16, src_cb+7*uvlinesize);
1534 AV_COPY64(top_border+24, src_cr+7*uvlinesize);
1545 top_border = h->top_borders[top_idx][s->mb_x];
1546 // There are two lines saved, the line above the the top macroblock of a pair,
1547 // and the line above the bottom macroblock
1548 AV_COPY128(top_border, src_y + 16*linesize);
1550 AV_COPY128(top_border+16, src_y+16*linesize+16);
1552 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1555 AV_COPY128(top_border+32, src_cb + 16*linesize);
1556 AV_COPY128(top_border+48, src_cb + 16*linesize+16);
1557 AV_COPY128(top_border+64, src_cr + 16*linesize);
1558 AV_COPY128(top_border+80, src_cr + 16*linesize+16);
1560 AV_COPY128(top_border+16, src_cb + 16*linesize);
1561 AV_COPY128(top_border+32, src_cr + 16*linesize);
1563 } else if(chroma422) {
1565 AV_COPY128(top_border+32, src_cb+16*uvlinesize);
1566 AV_COPY128(top_border+48, src_cr+16*uvlinesize);
1568 AV_COPY64(top_border+16, src_cb+16*uvlinesize);
1569 AV_COPY64(top_border+24, src_cr+16*uvlinesize);
1573 AV_COPY128(top_border+32, src_cb+8*uvlinesize);
1574 AV_COPY128(top_border+48, src_cr+8*uvlinesize);
1576 AV_COPY64(top_border+16, src_cb+8*uvlinesize);
1577 AV_COPY64(top_border+24, src_cr+8*uvlinesize);
1583 static av_always_inline void xchg_mb_border(H264Context *h, uint8_t *src_y,
1584 uint8_t *src_cb, uint8_t *src_cr,
1585 int linesize, int uvlinesize,
1586 int xchg, int chroma444,
1587 int simple, int pixel_shift){
1588 MpegEncContext * const s = &h->s;
1589 int deblock_topleft;
1592 uint8_t *top_border_m1;
1593 uint8_t *top_border;
1595 if(!simple && FRAME_MBAFF){
1600 top_idx = MB_MBAFF ? 0 : 1;
1604 if(h->deblocking_filter == 2) {
1605 deblock_topleft = h->slice_table[h->mb_xy - 1 - s->mb_stride] == h->slice_num;
1606 deblock_top = h->top_type;
1608 deblock_topleft = (s->mb_x > 0);
1609 deblock_top = (s->mb_y > !!MB_FIELD);
1612 src_y -= linesize + 1 + pixel_shift;
1613 src_cb -= uvlinesize + 1 + pixel_shift;
1614 src_cr -= uvlinesize + 1 + pixel_shift;
1616 top_border_m1 = h->top_borders[top_idx][s->mb_x-1];
1617 top_border = h->top_borders[top_idx][s->mb_x];
1619 #define XCHG(a,b,xchg)\
1622 AV_SWAP64(b+0,a+0);\
1623 AV_SWAP64(b+8,a+8);\
1628 if (xchg) AV_SWAP64(b,a);\
1629 else AV_COPY64(b,a);
1632 if(deblock_topleft){
1633 XCHG(top_border_m1 + (8 << pixel_shift), src_y - (7 << pixel_shift), 1);
1635 XCHG(top_border + (0 << pixel_shift), src_y + (1 << pixel_shift), xchg);
1636 XCHG(top_border + (8 << pixel_shift), src_y + (9 << pixel_shift), 1);
1637 if(s->mb_x+1 < s->mb_width){
1638 XCHG(h->top_borders[top_idx][s->mb_x+1], src_y + (17 << pixel_shift), 1);
1641 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1643 if(deblock_topleft){
1644 XCHG(top_border_m1 + (24 << pixel_shift), src_cb - (7 << pixel_shift), 1);
1645 XCHG(top_border_m1 + (40 << pixel_shift), src_cr - (7 << pixel_shift), 1);
1647 XCHG(top_border + (16 << pixel_shift), src_cb + (1 << pixel_shift), xchg);
1648 XCHG(top_border + (24 << pixel_shift), src_cb + (9 << pixel_shift), 1);
1649 XCHG(top_border + (32 << pixel_shift), src_cr + (1 << pixel_shift), xchg);
1650 XCHG(top_border + (40 << pixel_shift), src_cr + (9 << pixel_shift), 1);
1651 if(s->mb_x+1 < s->mb_width){
1652 XCHG(h->top_borders[top_idx][s->mb_x+1] + (16 << pixel_shift), src_cb + (17 << pixel_shift), 1);
1653 XCHG(h->top_borders[top_idx][s->mb_x+1] + (32 << pixel_shift), src_cr + (17 << pixel_shift), 1);
1657 if(deblock_topleft){
1658 XCHG(top_border_m1 + (16 << pixel_shift), src_cb - (7 << pixel_shift), 1);
1659 XCHG(top_border_m1 + (24 << pixel_shift), src_cr - (7 << pixel_shift), 1);
1661 XCHG(top_border + (16 << pixel_shift), src_cb+1+pixel_shift, 1);
1662 XCHG(top_border + (24 << pixel_shift), src_cr+1+pixel_shift, 1);
1668 static av_always_inline int dctcoef_get(DCTELEM *mb, int high_bit_depth, int index) {
1669 if (high_bit_depth) {
1670 return AV_RN32A(((int32_t*)mb) + index);
1672 return AV_RN16A(mb + index);
1675 static av_always_inline void dctcoef_set(DCTELEM *mb, int high_bit_depth, int index, int value) {
1676 if (high_bit_depth) {
1677 AV_WN32A(((int32_t*)mb) + index, value);
1679 AV_WN16A(mb + index, value);
1682 static av_always_inline void hl_decode_mb_predict_luma(H264Context *h, int mb_type, int is_h264, int simple, int transform_bypass,
1683 int pixel_shift, int *block_offset, int linesize, uint8_t *dest_y, int p)
1685 MpegEncContext * const s = &h->s;
1686 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1687 void (*idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
1689 int qscale = p == 0 ? s->qscale : h->chroma_qp[p-1];
1690 block_offset += 16*p;
1691 if(IS_INTRA4x4(mb_type)){
1692 if(simple || !s->encoding){
1693 if(IS_8x8DCT(mb_type)){
1694 if(transform_bypass){
1696 idct_add = s->dsp.add_pixels8;
1698 idct_dc_add = h->h264dsp.h264_idct8_dc_add;
1699 idct_add = h->h264dsp.h264_idct8_add;
1701 for(i=0; i<16; i+=4){
1702 uint8_t * const ptr= dest_y + block_offset[i];
1703 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
1704 if(transform_bypass && h->sps.profile_idc==244 && dir<=1){
1705 h->hpc.pred8x8l_add[dir](ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1707 const int nnz = h->non_zero_count_cache[ scan8[i+p*16] ];
1708 h->hpc.pred8x8l[ dir ](ptr, (h->topleft_samples_available<<i)&0x8000,
1709 (h->topright_samples_available<<i)&0x4000, linesize);
1711 if(nnz == 1 && dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1712 idct_dc_add(ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1714 idct_add (ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1719 if(transform_bypass){
1721 idct_add = s->dsp.add_pixels4;
1723 idct_dc_add = h->h264dsp.h264_idct_dc_add;
1724 idct_add = h->h264dsp.h264_idct_add;
1726 for(i=0; i<16; i++){
1727 uint8_t * const ptr= dest_y + block_offset[i];
1728 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
1730 if(transform_bypass && h->sps.profile_idc==244 && dir<=1){
1731 h->hpc.pred4x4_add[dir](ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1736 if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
1737 const int topright_avail= (h->topright_samples_available<<i)&0x8000;
1738 assert(s->mb_y || linesize <= block_offset[i]);
1739 if(!topright_avail){
1741 tr_high= ((uint16_t*)ptr)[3 - linesize/2]*0x0001000100010001ULL;
1742 topright= (uint8_t*) &tr_high;
1744 tr= ptr[3 - linesize]*0x01010101u;
1745 topright= (uint8_t*) &tr;
1748 topright= ptr + (4 << pixel_shift) - linesize;
1752 h->hpc.pred4x4[ dir ](ptr, topright, linesize);
1753 nnz = h->non_zero_count_cache[ scan8[i+p*16] ];
1756 if(nnz == 1 && dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1757 idct_dc_add(ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1759 idct_add (ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1761 ff_svq3_add_idct_c(ptr, h->mb + i*16+p*256, linesize, qscale, 0);
1768 h->hpc.pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);
1770 if(h->non_zero_count_cache[ scan8[LUMA_DC_BLOCK_INDEX+p] ]){
1771 if(!transform_bypass)
1772 h->h264dsp.h264_luma_dc_dequant_idct(h->mb+(p*256 << pixel_shift), h->mb_luma_dc[p], h->dequant4_coeff[p][qscale][0]);
1774 static const uint8_t dc_mapping[16] = { 0*16, 1*16, 4*16, 5*16, 2*16, 3*16, 6*16, 7*16,
1775 8*16, 9*16,12*16,13*16,10*16,11*16,14*16,15*16};
1776 for(i = 0; i < 16; i++)
1777 dctcoef_set(h->mb+p*256, pixel_shift, dc_mapping[i], dctcoef_get(h->mb_luma_dc[p], pixel_shift, i));
1781 ff_svq3_luma_dc_dequant_idct_c(h->mb+p*256, h->mb_luma_dc[p], qscale);
1785 static av_always_inline void hl_decode_mb_idct_luma(H264Context *h, int mb_type, int is_h264, int simple, int transform_bypass,
1786 int pixel_shift, int *block_offset, int linesize, uint8_t *dest_y, int p)
1788 MpegEncContext * const s = &h->s;
1789 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1791 block_offset += 16*p;
1792 if(!IS_INTRA4x4(mb_type)){
1794 if(IS_INTRA16x16(mb_type)){
1795 if(transform_bypass){
1796 if(h->sps.profile_idc==244 && (h->intra16x16_pred_mode==VERT_PRED8x8 || h->intra16x16_pred_mode==HOR_PRED8x8)){
1797 h->hpc.pred16x16_add[h->intra16x16_pred_mode](dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize);
1799 for(i=0; i<16; i++){
1800 if(h->non_zero_count_cache[ scan8[i+p*16] ] || dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1801 s->dsp.add_pixels4(dest_y + block_offset[i], h->mb + (i*16+p*256 << pixel_shift), linesize);
1805 h->h264dsp.h264_idct_add16intra(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1807 }else if(h->cbp&15){
1808 if(transform_bypass){
1809 const int di = IS_8x8DCT(mb_type) ? 4 : 1;
1810 idct_add= IS_8x8DCT(mb_type) ? s->dsp.add_pixels8 : s->dsp.add_pixels4;
1811 for(i=0; i<16; i+=di){
1812 if(h->non_zero_count_cache[ scan8[i+p*16] ]){
1813 idct_add(dest_y + block_offset[i], h->mb + (i*16+p*256 << pixel_shift), linesize);
1817 if(IS_8x8DCT(mb_type)){
1818 h->h264dsp.h264_idct8_add4(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1820 h->h264dsp.h264_idct_add16(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1825 for(i=0; i<16; i++){
1826 if(h->non_zero_count_cache[ scan8[i+p*16] ] || h->mb[i*16+p*256]){ //FIXME benchmark weird rule, & below
1827 uint8_t * const ptr= dest_y + block_offset[i];
1828 ff_svq3_add_idct_c(ptr, h->mb + i*16 + p*256, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0);
1835 static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple, int pixel_shift)
1837 MpegEncContext * const s = &h->s;
1838 const int mb_x= s->mb_x;
1839 const int mb_y= s->mb_y;
1840 const int mb_xy= h->mb_xy;
1841 const int mb_type = s->current_picture.f.mb_type[mb_xy];
1842 uint8_t *dest_y, *dest_cb, *dest_cr;
1843 int linesize, uvlinesize /*dct_offset*/;
1845 int *block_offset = &h->block_offset[0];
1846 const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass);
1847 /* is_h264 should always be true if SVQ3 is disabled. */
1848 const int is_h264 = !CONFIG_SVQ3_DECODER || simple || s->codec_id == CODEC_ID_H264;
1849 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1850 const int block_h = 16 >> s->chroma_y_shift;
1851 const int chroma422 = CHROMA422;
1853 dest_y = s->current_picture.f.data[0] + ((mb_x << pixel_shift) + mb_y * s->linesize ) * 16;
1854 dest_cb = s->current_picture.f.data[1] + (mb_x << pixel_shift)*8 + mb_y * s->uvlinesize * block_h;
1855 dest_cr = s->current_picture.f.data[2] + (mb_x << pixel_shift)*8 + mb_y * s->uvlinesize * block_h;
1857 s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + (64 << pixel_shift), s->linesize, 4);
1858 s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + (64 << pixel_shift), dest_cr - dest_cb, 2);
1860 h->list_counts[mb_xy]= h->list_count;
1862 if (!simple && MB_FIELD) {
1863 linesize = h->mb_linesize = s->linesize * 2;
1864 uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
1865 block_offset = &h->block_offset[48];
1866 if(mb_y&1){ //FIXME move out of this function?
1867 dest_y -= s->linesize*15;
1868 dest_cb-= s->uvlinesize * (block_h - 1);
1869 dest_cr-= s->uvlinesize * (block_h - 1);
1873 for(list=0; list<h->list_count; list++){
1874 if(!USES_LIST(mb_type, list))
1876 if(IS_16X16(mb_type)){
1877 int8_t *ref = &h->ref_cache[list][scan8[0]];
1878 fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);
1880 for(i=0; i<16; i+=4){
1881 int ref = h->ref_cache[list][scan8[i]];
1883 fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);
1889 linesize = h->mb_linesize = s->linesize;
1890 uvlinesize = h->mb_uvlinesize = s->uvlinesize;
1891 // dct_offset = s->linesize * 16;
1894 if (!simple && IS_INTRA_PCM(mb_type)) {
1896 const int bit_depth = h->sps.bit_depth_luma;
1899 init_get_bits(&gb, (uint8_t*)h->mb, 384*bit_depth);
1901 for (i = 0; i < 16; i++) {
1902 uint16_t *tmp_y = (uint16_t*)(dest_y + i*linesize);
1903 for (j = 0; j < 16; j++)
1904 tmp_y[j] = get_bits(&gb, bit_depth);
1906 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1907 if (!h->sps.chroma_format_idc) {
1908 for (i = 0; i < block_h; i++) {
1909 uint16_t *tmp_cb = (uint16_t*)(dest_cb + i*uvlinesize);
1910 for (j = 0; j < 8; j++) {
1911 tmp_cb[j] = 1 << (bit_depth - 1);
1914 for (i = 0; i < block_h; i++) {
1915 uint16_t *tmp_cr = (uint16_t*)(dest_cr + i*uvlinesize);
1916 for (j = 0; j < 8; j++) {
1917 tmp_cr[j] = 1 << (bit_depth - 1);
1921 for (i = 0; i < block_h; i++) {
1922 uint16_t *tmp_cb = (uint16_t*)(dest_cb + i*uvlinesize);
1923 for (j = 0; j < 8; j++)
1924 tmp_cb[j] = get_bits(&gb, bit_depth);
1926 for (i = 0; i < block_h; i++) {
1927 uint16_t *tmp_cr = (uint16_t*)(dest_cr + i*uvlinesize);
1928 for (j = 0; j < 8; j++)
1929 tmp_cr[j] = get_bits(&gb, bit_depth);
1934 for (i=0; i<16; i++) {
1935 memcpy(dest_y + i* linesize, h->mb + i*8, 16);
1937 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1938 if (!h->sps.chroma_format_idc) {
1939 for (i = 0; i < block_h; i++) {
1940 memset(dest_cb + i*uvlinesize, 128, 8);
1941 memset(dest_cr + i*uvlinesize, 128, 8);
1944 for (i = 0; i < block_h; i++) {
1945 memcpy(dest_cb + i*uvlinesize, h->mb + 128 + i*4, 8);
1946 memcpy(dest_cr + i*uvlinesize, h->mb + 160 + i*4, 8);
1952 if(IS_INTRA(mb_type)){
1953 if(h->deblocking_filter)
1954 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, 0, simple, pixel_shift);
1956 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1957 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
1958 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
1961 hl_decode_mb_predict_luma(h, mb_type, is_h264, simple, transform_bypass, pixel_shift, block_offset, linesize, dest_y, 0);
1963 if(h->deblocking_filter)
1964 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, 0, simple, pixel_shift);
1967 hl_motion_422(h, dest_y, dest_cb, dest_cr,
1968 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
1969 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
1970 h->h264dsp.weight_h264_pixels_tab,
1971 h->h264dsp.biweight_h264_pixels_tab,
1974 hl_motion_420(h, dest_y, dest_cb, dest_cr,
1975 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
1976 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
1977 h->h264dsp.weight_h264_pixels_tab,
1978 h->h264dsp.biweight_h264_pixels_tab,
1983 hl_decode_mb_idct_luma(h, mb_type, is_h264, simple, transform_bypass, pixel_shift, block_offset, linesize, dest_y, 0);
1985 if((simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) && (h->cbp&0x30)){
1986 uint8_t *dest[2] = {dest_cb, dest_cr};
1987 if(transform_bypass){
1988 if(IS_INTRA(mb_type) && h->sps.profile_idc==244 && (h->chroma_pred_mode==VERT_PRED8x8 || h->chroma_pred_mode==HOR_PRED8x8)){
1989 h->hpc.pred8x8_add[h->chroma_pred_mode](dest[0], block_offset + 16, h->mb + (16*16*1 << pixel_shift), uvlinesize);
1990 h->hpc.pred8x8_add[h->chroma_pred_mode](dest[1], block_offset + 32, h->mb + (16*16*2 << pixel_shift), uvlinesize);
1992 idct_add = s->dsp.add_pixels4;
1994 for(i=j*16; i<j*16+4; i++){
1995 if(h->non_zero_count_cache[ scan8[i] ] || dctcoef_get(h->mb, pixel_shift, i*16))
1996 idct_add (dest[j-1] + block_offset[i], h->mb + (i*16 << pixel_shift), uvlinesize);
1999 for(i=j*16+4; i<j*16+8; i++){
2000 if(h->non_zero_count_cache[ scan8[i] ] || dctcoef_get(h->mb, pixel_shift, i*16))
2001 idct_add (dest[j-1] + block_offset[i+4], h->mb + (i*16 << pixel_shift), uvlinesize);
2010 qp[0] = h->chroma_qp[0] + 3;
2011 qp[1] = h->chroma_qp[1] + 3;
2013 qp[0] = h->chroma_qp[0];
2014 qp[1] = h->chroma_qp[1];
2016 if(h->non_zero_count_cache[ scan8[CHROMA_DC_BLOCK_INDEX+0] ])
2017 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]);
2018 if(h->non_zero_count_cache[ scan8[CHROMA_DC_BLOCK_INDEX+1] ])
2019 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]);
2020 h->h264dsp.h264_idct_add8(dest, block_offset,
2022 h->non_zero_count_cache);
2024 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]);
2025 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]);
2027 for(i=j*16; i<j*16+4; i++){
2028 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2029 uint8_t * const ptr= dest[j-1] + block_offset[i];
2030 ff_svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, ff_h264_chroma_qp[0][s->qscale + 12] - 12, 2);
2038 if(h->cbp || IS_INTRA(mb_type))
2040 s->dsp.clear_blocks(h->mb);
2041 s->dsp.clear_blocks(h->mb+(24*16<<pixel_shift));
2045 static av_always_inline void hl_decode_mb_444_internal(H264Context *h, int simple, int pixel_shift){
2046 MpegEncContext * const s = &h->s;
2047 const int mb_x= s->mb_x;
2048 const int mb_y= s->mb_y;
2049 const int mb_xy= h->mb_xy;
2050 const int mb_type = s->current_picture.f.mb_type[mb_xy];
2054 int *block_offset = &h->block_offset[0];
2055 const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass);
2056 const int plane_count = (simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) ? 3 : 1;
2058 for (p = 0; p < plane_count; p++)
2060 dest[p] = s->current_picture.f.data[p] + ((mb_x << pixel_shift) + mb_y * s->linesize) * 16;
2061 s->dsp.prefetch(dest[p] + (s->mb_x&3)*4*s->linesize + (64 << pixel_shift), s->linesize, 4);
2064 h->list_counts[mb_xy]= h->list_count;
2066 if (!simple && MB_FIELD) {
2067 linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize * 2;
2068 block_offset = &h->block_offset[48];
2069 if(mb_y&1) //FIXME move out of this function?
2070 for (p = 0; p < 3; p++)
2071 dest[p] -= s->linesize*15;
2074 for(list=0; list<h->list_count; list++){
2075 if(!USES_LIST(mb_type, list))
2077 if(IS_16X16(mb_type)){
2078 int8_t *ref = &h->ref_cache[list][scan8[0]];
2079 fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);
2081 for(i=0; i<16; i+=4){
2082 int ref = h->ref_cache[list][scan8[i]];
2084 fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);
2090 linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize;
2093 if (!simple && IS_INTRA_PCM(mb_type)) {
2095 const int bit_depth = h->sps.bit_depth_luma;
2097 init_get_bits(&gb, (uint8_t*)h->mb, 768*bit_depth);
2099 for (p = 0; p < plane_count; p++) {
2100 for (i = 0; i < 16; i++) {
2101 uint16_t *tmp = (uint16_t*)(dest[p] + i*linesize);
2102 for (j = 0; j < 16; j++)
2103 tmp[j] = get_bits(&gb, bit_depth);
2107 for (p = 0; p < plane_count; p++) {
2108 for (i = 0; i < 16; i++) {
2109 memcpy(dest[p] + i*linesize, h->mb + p*128 + i*8, 16);
2114 if(IS_INTRA(mb_type)){
2115 if(h->deblocking_filter)
2116 xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, linesize, 1, 1, simple, pixel_shift);
2118 for (p = 0; p < plane_count; p++)
2119 hl_decode_mb_predict_luma(h, mb_type, 1, simple, transform_bypass, pixel_shift, block_offset, linesize, dest[p], p);
2121 if(h->deblocking_filter)
2122 xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, linesize, 0, 1, simple, pixel_shift);
2124 hl_motion(h, dest[0], dest[1], dest[2],
2125 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
2126 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
2127 h->h264dsp.weight_h264_pixels_tab,
2128 h->h264dsp.biweight_h264_pixels_tab, pixel_shift, 3);
2131 for (p = 0; p < plane_count; p++)
2132 hl_decode_mb_idct_luma(h, mb_type, 1, simple, transform_bypass, pixel_shift, block_offset, linesize, dest[p], p);
2134 if(h->cbp || IS_INTRA(mb_type))
2136 s->dsp.clear_blocks(h->mb);
2137 s->dsp.clear_blocks(h->mb+(24*16<<pixel_shift));
2142 * Process a macroblock; this case avoids checks for expensive uncommon cases.
2144 #define hl_decode_mb_simple(sh, bits) \
2145 static void hl_decode_mb_simple_ ## bits(H264Context *h){ \
2146 hl_decode_mb_internal(h, 1, sh); \
2148 hl_decode_mb_simple(0, 8);
2149 hl_decode_mb_simple(1, 16);
2152 * Process a macroblock; this handles edge cases, such as interlacing.
2154 static void av_noinline hl_decode_mb_complex(H264Context *h){
2155 hl_decode_mb_internal(h, 0, h->pixel_shift);
2158 static void av_noinline hl_decode_mb_444_complex(H264Context *h){
2159 hl_decode_mb_444_internal(h, 0, h->pixel_shift);
2162 static void av_noinline hl_decode_mb_444_simple(H264Context *h){
2163 hl_decode_mb_444_internal(h, 1, 0);
2166 void ff_h264_hl_decode_mb(H264Context *h){
2167 MpegEncContext * const s = &h->s;
2168 const int mb_xy= h->mb_xy;
2169 const int mb_type = s->current_picture.f.mb_type[mb_xy];
2170 int is_complex = CONFIG_SMALL || h->is_complex || IS_INTRA_PCM(mb_type) || s->qscale == 0;
2173 if(is_complex || h->pixel_shift)
2174 hl_decode_mb_444_complex(h);
2176 hl_decode_mb_444_simple(h);
2177 } else if (is_complex) {
2178 hl_decode_mb_complex(h);
2179 } else if (h->pixel_shift) {
2180 hl_decode_mb_simple_16(h);
2182 hl_decode_mb_simple_8(h);
2185 static int pred_weight_table(H264Context *h){
2186 MpegEncContext * const s = &h->s;
2188 int luma_def, chroma_def;
2191 h->use_weight_chroma= 0;
2192 h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
2193 if(h->sps.chroma_format_idc)
2194 h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
2195 luma_def = 1<<h->luma_log2_weight_denom;
2196 chroma_def = 1<<h->chroma_log2_weight_denom;
2198 for(list=0; list<2; list++){
2199 h->luma_weight_flag[list] = 0;
2200 h->chroma_weight_flag[list] = 0;
2201 for(i=0; i<h->ref_count[list]; i++){
2202 int luma_weight_flag, chroma_weight_flag;
2204 luma_weight_flag= get_bits1(&s->gb);
2205 if(luma_weight_flag){
2206 h->luma_weight[i][list][0]= get_se_golomb(&s->gb);
2207 h->luma_weight[i][list][1]= get_se_golomb(&s->gb);
2208 if( h->luma_weight[i][list][0] != luma_def
2209 || h->luma_weight[i][list][1] != 0) {
2211 h->luma_weight_flag[list]= 1;
2214 h->luma_weight[i][list][0]= luma_def;
2215 h->luma_weight[i][list][1]= 0;
2218 if(h->sps.chroma_format_idc){
2219 chroma_weight_flag= get_bits1(&s->gb);
2220 if(chroma_weight_flag){
2223 h->chroma_weight[i][list][j][0]= get_se_golomb(&s->gb);
2224 h->chroma_weight[i][list][j][1]= get_se_golomb(&s->gb);
2225 if( h->chroma_weight[i][list][j][0] != chroma_def
2226 || h->chroma_weight[i][list][j][1] != 0) {
2227 h->use_weight_chroma= 1;
2228 h->chroma_weight_flag[list]= 1;
2234 h->chroma_weight[i][list][j][0]= chroma_def;
2235 h->chroma_weight[i][list][j][1]= 0;
2240 if(h->slice_type_nos != AV_PICTURE_TYPE_B) break;
2242 h->use_weight= h->use_weight || h->use_weight_chroma;
2247 * Initialize implicit_weight table.
2248 * @param field 0/1 initialize the weight for interlaced MBAFF
2249 * -1 initializes the rest
2251 static void implicit_weight_table(H264Context *h, int field){
2252 MpegEncContext * const s = &h->s;
2253 int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
2255 for (i = 0; i < 2; i++) {
2256 h->luma_weight_flag[i] = 0;
2257 h->chroma_weight_flag[i] = 0;
2261 if (s->picture_structure == PICT_FRAME) {
2262 cur_poc = s->current_picture_ptr->poc;
2264 cur_poc = s->current_picture_ptr->field_poc[s->picture_structure - 1];
2266 if( h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF
2267 && h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){
2269 h->use_weight_chroma= 0;
2273 ref_count0= h->ref_count[0];
2274 ref_count1= h->ref_count[1];
2276 cur_poc = s->current_picture_ptr->field_poc[field];
2278 ref_count0= 16+2*h->ref_count[0];
2279 ref_count1= 16+2*h->ref_count[1];
2283 h->use_weight_chroma= 2;
2284 h->luma_log2_weight_denom= 5;
2285 h->chroma_log2_weight_denom= 5;
2287 for(ref0=ref_start; ref0 < ref_count0; ref0++){
2288 int poc0 = h->ref_list[0][ref0].poc;
2289 for(ref1=ref_start; ref1 < ref_count1; ref1++){
2291 if (!h->ref_list[0][ref0].long_ref && !h->ref_list[1][ref1].long_ref) {
2292 int poc1 = h->ref_list[1][ref1].poc;
2293 int td = av_clip(poc1 - poc0, -128, 127);
2295 int tb = av_clip(cur_poc - poc0, -128, 127);
2296 int tx = (16384 + (FFABS(td) >> 1)) / td;
2297 int dist_scale_factor = (tb*tx + 32) >> 8;
2298 if(dist_scale_factor >= -64 && dist_scale_factor <= 128)
2299 w = 64 - dist_scale_factor;
2303 h->implicit_weight[ref0][ref1][0]=
2304 h->implicit_weight[ref0][ref1][1]= w;
2306 h->implicit_weight[ref0][ref1][field]=w;
2313 * instantaneous decoder refresh.
2315 static void idr(H264Context *h){
2316 ff_h264_remove_all_refs(h);
2317 h->prev_frame_num= 0;
2318 h->prev_frame_num_offset= 0;
2323 /* forget old pics after a seek */
2324 static void flush_dpb(AVCodecContext *avctx){
2325 H264Context *h= avctx->priv_data;
2327 for(i=0; i<MAX_DELAYED_PIC_COUNT; i++) {
2328 if(h->delayed_pic[i])
2329 h->delayed_pic[i]->f.reference = 0;
2330 h->delayed_pic[i]= NULL;
2332 h->outputed_poc=h->next_outputed_poc= INT_MIN;
2333 h->prev_interlaced_frame = 1;
2335 if(h->s.current_picture_ptr)
2336 h->s.current_picture_ptr->f.reference = 0;
2337 h->s.first_field= 0;
2338 ff_h264_reset_sei(h);
2339 ff_mpeg_flush(avctx);
2342 static int init_poc(H264Context *h){
2343 MpegEncContext * const s = &h->s;
2344 const int max_frame_num= 1<<h->sps.log2_max_frame_num;
2346 Picture *cur = s->current_picture_ptr;
2348 h->frame_num_offset= h->prev_frame_num_offset;
2349 if(h->frame_num < h->prev_frame_num)
2350 h->frame_num_offset += max_frame_num;
2352 if(h->sps.poc_type==0){
2353 const int max_poc_lsb= 1<<h->sps.log2_max_poc_lsb;
2355 if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2)
2356 h->poc_msb = h->prev_poc_msb + max_poc_lsb;
2357 else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2)
2358 h->poc_msb = h->prev_poc_msb - max_poc_lsb;
2360 h->poc_msb = h->prev_poc_msb;
2361 //printf("poc: %d %d\n", h->poc_msb, h->poc_lsb);
2363 field_poc[1] = h->poc_msb + h->poc_lsb;
2364 if(s->picture_structure == PICT_FRAME)
2365 field_poc[1] += h->delta_poc_bottom;
2366 }else if(h->sps.poc_type==1){
2367 int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
2370 if(h->sps.poc_cycle_length != 0)
2371 abs_frame_num = h->frame_num_offset + h->frame_num;
2375 if(h->nal_ref_idc==0 && abs_frame_num > 0)
2378 expected_delta_per_poc_cycle = 0;
2379 for(i=0; i < h->sps.poc_cycle_length; i++)
2380 expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse
2382 if(abs_frame_num > 0){
2383 int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length;
2384 int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;
2386 expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;
2387 for(i = 0; i <= frame_num_in_poc_cycle; i++)
2388 expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ];
2392 if(h->nal_ref_idc == 0)
2393 expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;
2395 field_poc[0] = expectedpoc + h->delta_poc[0];
2396 field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;
2398 if(s->picture_structure == PICT_FRAME)
2399 field_poc[1] += h->delta_poc[1];
2401 int poc= 2*(h->frame_num_offset + h->frame_num);
2410 if(s->picture_structure != PICT_BOTTOM_FIELD)
2411 s->current_picture_ptr->field_poc[0]= field_poc[0];
2412 if(s->picture_structure != PICT_TOP_FIELD)
2413 s->current_picture_ptr->field_poc[1]= field_poc[1];
2414 cur->poc= FFMIN(cur->field_poc[0], cur->field_poc[1]);
2421 * initialize scan tables
2423 static void init_scan_tables(H264Context *h){
2425 for(i=0; i<16; i++){
2426 #define T(x) (x>>2) | ((x<<2) & 0xF)
2427 h->zigzag_scan[i] = T(zigzag_scan[i]);
2428 h-> field_scan[i] = T( field_scan[i]);
2431 for(i=0; i<64; i++){
2432 #define T(x) (x>>3) | ((x&7)<<3)
2433 h->zigzag_scan8x8[i] = T(ff_zigzag_direct[i]);
2434 h->zigzag_scan8x8_cavlc[i] = T(zigzag_scan8x8_cavlc[i]);
2435 h->field_scan8x8[i] = T(field_scan8x8[i]);
2436 h->field_scan8x8_cavlc[i] = T(field_scan8x8_cavlc[i]);
2439 if(h->sps.transform_bypass){ //FIXME same ugly
2440 h->zigzag_scan_q0 = zigzag_scan;
2441 h->zigzag_scan8x8_q0 = ff_zigzag_direct;
2442 h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc;
2443 h->field_scan_q0 = field_scan;
2444 h->field_scan8x8_q0 = field_scan8x8;
2445 h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc;
2447 h->zigzag_scan_q0 = h->zigzag_scan;
2448 h->zigzag_scan8x8_q0 = h->zigzag_scan8x8;
2449 h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc;
2450 h->field_scan_q0 = h->field_scan;
2451 h->field_scan8x8_q0 = h->field_scan8x8;
2452 h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc;
2456 static int field_end(H264Context *h, int in_setup){
2457 MpegEncContext * const s = &h->s;
2458 AVCodecContext * const avctx= s->avctx;
2462 if (!in_setup && !s->dropable)
2463 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, (16*s->mb_height >> FIELD_PICTURE) - 1,
2464 s->picture_structure==PICT_BOTTOM_FIELD);
2466 if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
2467 ff_vdpau_h264_set_reference_frames(s);
2469 if(in_setup || !(avctx->active_thread_type&FF_THREAD_FRAME)){
2471 err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
2472 h->prev_poc_msb= h->poc_msb;
2473 h->prev_poc_lsb= h->poc_lsb;
2475 h->prev_frame_num_offset= h->frame_num_offset;
2476 h->prev_frame_num= h->frame_num;
2477 h->outputed_poc = h->next_outputed_poc;
2480 if (avctx->hwaccel) {
2481 if (avctx->hwaccel->end_frame(avctx) < 0)
2482 av_log(avctx, AV_LOG_ERROR, "hardware accelerator failed to decode picture\n");
2485 if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
2486 ff_vdpau_h264_picture_complete(s);
2489 * FIXME: Error handling code does not seem to support interlaced
2490 * when slices span multiple rows
2491 * The ff_er_add_slice calls don't work right for bottom
2492 * fields; they cause massive erroneous error concealing
2493 * Error marking covers both fields (top and bottom).
2494 * This causes a mismatched s->error_count
2495 * and a bad error table. Further, the error count goes to
2496 * INT_MAX when called for bottom field, because mb_y is
2497 * past end by one (callers fault) and resync_mb_y != 0
2498 * causes problems for the first MB line, too.
2511 * Replicate H264 "master" context to thread contexts.
2513 static void clone_slice(H264Context *dst, H264Context *src)
2515 memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
2516 dst->s.current_picture_ptr = src->s.current_picture_ptr;
2517 dst->s.current_picture = src->s.current_picture;
2518 dst->s.linesize = src->s.linesize;
2519 dst->s.uvlinesize = src->s.uvlinesize;
2520 dst->s.first_field = src->s.first_field;
2522 dst->prev_poc_msb = src->prev_poc_msb;
2523 dst->prev_poc_lsb = src->prev_poc_lsb;
2524 dst->prev_frame_num_offset = src->prev_frame_num_offset;
2525 dst->prev_frame_num = src->prev_frame_num;
2526 dst->short_ref_count = src->short_ref_count;
2528 memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
2529 memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
2530 memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
2531 memcpy(dst->ref_list, src->ref_list, sizeof(dst->ref_list));
2533 memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
2534 memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
2538 * computes profile from profile_idc and constraint_set?_flags
2542 * @return profile as defined by FF_PROFILE_H264_*
2544 int ff_h264_get_profile(SPS *sps)
2546 int profile = sps->profile_idc;
2548 switch(sps->profile_idc) {
2549 case FF_PROFILE_H264_BASELINE:
2550 // constraint_set1_flag set to 1
2551 profile |= (sps->constraint_set_flags & 1<<1) ? FF_PROFILE_H264_CONSTRAINED : 0;
2553 case FF_PROFILE_H264_HIGH_10:
2554 case FF_PROFILE_H264_HIGH_422:
2555 case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
2556 // constraint_set3_flag set to 1
2557 profile |= (sps->constraint_set_flags & 1<<3) ? FF_PROFILE_H264_INTRA : 0;
2565 * decodes a slice header.
2566 * This will also call MPV_common_init() and frame_start() as needed.
2568 * @param h h264context
2569 * @param h0 h264 master context (differs from 'h' when doing sliced based parallel decoding)
2571 * @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded
2573 static int decode_slice_header(H264Context *h, H264Context *h0){
2574 MpegEncContext * const s = &h->s;
2575 MpegEncContext * const s0 = &h0->s;
2576 unsigned int first_mb_in_slice;
2577 unsigned int pps_id;
2578 int num_ref_idx_active_override_flag;
2579 unsigned int slice_type, tmp, i, j;
2580 int default_ref_list_done = 0;
2581 int last_pic_structure;
2583 s->dropable= h->nal_ref_idc == 0;
2585 /* FIXME: 2tap qpel isn't implemented for high bit depth. */
2586 if((s->avctx->flags2 & CODEC_FLAG2_FAST) && !h->nal_ref_idc && !h->pixel_shift){
2587 s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab;
2588 s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab;
2590 s->me.qpel_put= s->dsp.put_h264_qpel_pixels_tab;
2591 s->me.qpel_avg= s->dsp.avg_h264_qpel_pixels_tab;
2594 first_mb_in_slice= get_ue_golomb(&s->gb);
2596 if(first_mb_in_slice == 0){ //FIXME better field boundary detection
2597 if(h0->current_slice && FIELD_PICTURE){
2601 h0->current_slice = 0;
2602 if (!s0->first_field)
2603 s->current_picture_ptr= NULL;
2606 slice_type= get_ue_golomb_31(&s->gb);
2608 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);
2613 h->slice_type_fixed=1;
2615 h->slice_type_fixed=0;
2617 slice_type= golomb_to_pict_type[ slice_type ];
2618 if (slice_type == AV_PICTURE_TYPE_I
2619 || (h0->current_slice != 0 && slice_type == h0->last_slice_type) ) {
2620 default_ref_list_done = 1;
2622 h->slice_type= slice_type;
2623 h->slice_type_nos= slice_type & 3;
2625 s->pict_type= h->slice_type; // to make a few old functions happy, it's wrong though
2627 pps_id= get_ue_golomb(&s->gb);
2628 if(pps_id>=MAX_PPS_COUNT){
2629 av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
2632 if(!h0->pps_buffers[pps_id]) {
2633 av_log(h->s.avctx, AV_LOG_ERROR, "non-existing PPS %u referenced\n", pps_id);
2636 h->pps= *h0->pps_buffers[pps_id];
2638 if(!h0->sps_buffers[h->pps.sps_id]) {
2639 av_log(h->s.avctx, AV_LOG_ERROR, "non-existing SPS %u referenced\n", h->pps.sps_id);
2642 h->sps = *h0->sps_buffers[h->pps.sps_id];
2644 s->avctx->profile = ff_h264_get_profile(&h->sps);
2645 s->avctx->level = h->sps.level_idc;
2646 s->avctx->refs = h->sps.ref_frame_count;
2648 if(h == h0 && h->dequant_coeff_pps != pps_id){
2649 h->dequant_coeff_pps = pps_id;
2650 init_dequant_tables(h);
2653 s->mb_width= h->sps.mb_width;
2654 s->mb_height= h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);
2656 h->b_stride= s->mb_width*4;
2658 s->chroma_y_shift = h->sps.chroma_format_idc <= 1; // 400 uses yuv420p
2660 s->width = 16*s->mb_width - (2>>CHROMA444)*FFMIN(h->sps.crop_right, (8<<CHROMA444)-1);
2661 if(h->sps.frame_mbs_only_flag)
2662 s->height= 16*s->mb_height - (1<<s->chroma_y_shift)*FFMIN(h->sps.crop_bottom, (16>>s->chroma_y_shift)-1);
2664 s->height= 16*s->mb_height - (2<<s->chroma_y_shift)*FFMIN(h->sps.crop_bottom, (16>>s->chroma_y_shift)-1);
2666 if (s->context_initialized
2667 && ( s->width != s->avctx->width || s->height != s->avctx->height
2668 || av_cmp_q(h->sps.sar, s->avctx->sample_aspect_ratio))) {
2670 av_log_missing_feature(s->avctx, "Width/height changing with threads is", 0);
2671 return -1; // width / height changed during parallelized decoding
2674 flush_dpb(s->avctx);
2677 if (!s->context_initialized) {
2679 av_log(h->s.avctx, AV_LOG_ERROR, "Cannot (re-)initialize context during parallel decoding.\n");
2683 avcodec_set_dimensions(s->avctx, s->width, s->height);
2684 s->avctx->sample_aspect_ratio= h->sps.sar;
2685 av_assert0(s->avctx->sample_aspect_ratio.den);
2687 if(h->sps.video_signal_type_present_flag){
2688 s->avctx->color_range = h->sps.full_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
2689 if(h->sps.colour_description_present_flag){
2690 s->avctx->color_primaries = h->sps.color_primaries;
2691 s->avctx->color_trc = h->sps.color_trc;
2692 s->avctx->colorspace = h->sps.colorspace;
2696 if(h->sps.timing_info_present_flag){
2697 int64_t den= h->sps.time_scale;
2698 if(h->x264_build < 44U)
2700 av_reduce(&s->avctx->time_base.num, &s->avctx->time_base.den,
2701 h->sps.num_units_in_tick, den, 1<<30);
2704 switch (h->sps.bit_depth_luma) {
2707 s->avctx->pix_fmt = PIX_FMT_YUV444P9;
2709 s->avctx->pix_fmt = PIX_FMT_YUV422P9;
2711 s->avctx->pix_fmt = PIX_FMT_YUV420P9;
2715 s->avctx->pix_fmt = PIX_FMT_YUV444P10;
2717 s->avctx->pix_fmt = PIX_FMT_YUV422P10;
2719 s->avctx->pix_fmt = PIX_FMT_YUV420P10;
2723 s->avctx->pix_fmt = s->avctx->color_range == AVCOL_RANGE_JPEG ? PIX_FMT_YUVJ444P : PIX_FMT_YUV444P;
2724 } else if (CHROMA422) {
2725 s->avctx->pix_fmt = s->avctx->color_range == AVCOL_RANGE_JPEG ? PIX_FMT_YUVJ422P : PIX_FMT_YUV422P;
2727 s->avctx->pix_fmt = s->avctx->get_format(s->avctx,
2728 s->avctx->codec->pix_fmts ?
2729 s->avctx->codec->pix_fmts :
2730 s->avctx->color_range == AVCOL_RANGE_JPEG ?
2731 hwaccel_pixfmt_list_h264_jpeg_420 :
2732 ff_hwaccel_pixfmt_list_420);
2736 s->avctx->hwaccel = ff_find_hwaccel(s->avctx->codec->id, s->avctx->pix_fmt);
2738 if (MPV_common_init(s) < 0) {
2739 av_log(h->s.avctx, AV_LOG_ERROR, "MPV_common_init() failed.\n");
2743 h->prev_interlaced_frame = 1;
2745 init_scan_tables(h);
2746 if (ff_h264_alloc_tables(h) < 0) {
2747 av_log(h->s.avctx, AV_LOG_ERROR, "Could not allocate memory for h264\n");
2748 return AVERROR(ENOMEM);
2751 if (!HAVE_THREADS || !(s->avctx->active_thread_type&FF_THREAD_SLICE)) {
2752 if (context_init(h) < 0) {
2753 av_log(h->s.avctx, AV_LOG_ERROR, "context_init() failed.\n");
2757 for(i = 1; i < s->avctx->thread_count; i++) {
2759 c = h->thread_context[i] = av_malloc(sizeof(H264Context));
2760 memcpy(c, h->s.thread_context[i], sizeof(MpegEncContext));
2761 memset(&c->s + 1, 0, sizeof(H264Context) - sizeof(MpegEncContext));
2762 c->h264dsp = h->h264dsp;
2765 c->pixel_shift = h->pixel_shift;
2766 init_scan_tables(c);
2767 clone_tables(c, h, i);
2770 for(i = 0; i < s->avctx->thread_count; i++)
2771 if (context_init(h->thread_context[i]) < 0) {
2772 av_log(h->s.avctx, AV_LOG_ERROR, "context_init() failed.\n");
2778 h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num);
2781 h->mb_aff_frame = 0;
2782 last_pic_structure = s0->picture_structure;
2783 if(h->sps.frame_mbs_only_flag){
2784 s->picture_structure= PICT_FRAME;
2786 if(get_bits1(&s->gb)) { //field_pic_flag
2787 s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag
2789 s->picture_structure= PICT_FRAME;
2790 h->mb_aff_frame = h->sps.mb_aff;
2793 h->mb_field_decoding_flag= s->picture_structure != PICT_FRAME;
2795 if(h0->current_slice == 0){
2796 // Shorten frame num gaps so we don't have to allocate reference frames just to throw them away
2797 if(h->frame_num != h->prev_frame_num) {
2798 int unwrap_prev_frame_num = h->prev_frame_num, max_frame_num = 1<<h->sps.log2_max_frame_num;
2800 if (unwrap_prev_frame_num > h->frame_num) unwrap_prev_frame_num -= max_frame_num;
2802 if ((h->frame_num - unwrap_prev_frame_num) > h->sps.ref_frame_count) {
2803 unwrap_prev_frame_num = (h->frame_num - h->sps.ref_frame_count) - 1;
2804 if (unwrap_prev_frame_num < 0)
2805 unwrap_prev_frame_num += max_frame_num;
2807 h->prev_frame_num = unwrap_prev_frame_num;
2811 while(h->frame_num != h->prev_frame_num &&
2812 h->frame_num != (h->prev_frame_num+1)%(1<<h->sps.log2_max_frame_num)){
2813 Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
2814 av_log(h->s.avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n", h->frame_num, h->prev_frame_num);
2815 if (ff_h264_frame_start(h) < 0)
2817 h->prev_frame_num++;
2818 h->prev_frame_num %= 1<<h->sps.log2_max_frame_num;
2819 s->current_picture_ptr->frame_num= h->prev_frame_num;
2820 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, INT_MAX, 0);
2821 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, INT_MAX, 1);
2822 ff_generate_sliding_window_mmcos(h);
2823 if (ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index) < 0 &&
2824 s->avctx->error_recognition >= FF_ER_EXPLODE)
2825 return AVERROR_INVALIDDATA;
2826 /* Error concealment: if a ref is missing, copy the previous ref in its place.
2827 * FIXME: avoiding a memcpy would be nice, but ref handling makes many assumptions
2828 * about there being no actual duplicates.
2829 * FIXME: this doesn't copy padding for out-of-frame motion vectors. Given we're
2830 * concealing a lost frame, this probably isn't noticable by comparison, but it should
2832 if (h->short_ref_count) {
2834 av_image_copy(h->short_ref[0]->f.data, h->short_ref[0]->f.linesize,
2835 (const uint8_t**)prev->f.data, prev->f.linesize,
2836 s->avctx->pix_fmt, s->mb_width*16, s->mb_height*16);
2837 h->short_ref[0]->poc = prev->poc+2;
2839 h->short_ref[0]->frame_num = h->prev_frame_num;
2843 /* See if we have a decoded first field looking for a pair... */
2844 if (s0->first_field) {
2845 assert(s0->current_picture_ptr);
2846 assert(s0->current_picture_ptr->f.data[0]);
2847 assert(s0->current_picture_ptr->f.reference != DELAYED_PIC_REF);
2849 /* figure out if we have a complementary field pair */
2850 if (!FIELD_PICTURE || s->picture_structure == last_pic_structure) {
2852 * Previous field is unmatched. Don't display it, but let it
2853 * remain for reference if marked as such.
2855 s0->current_picture_ptr = NULL;
2856 s0->first_field = FIELD_PICTURE;
2859 if (h->nal_ref_idc &&
2860 s0->current_picture_ptr->f.reference &&
2861 s0->current_picture_ptr->frame_num != h->frame_num) {
2863 * This and previous field were reference, but had
2864 * different frame_nums. Consider this field first in
2865 * pair. Throw away previous field except for reference
2868 s0->first_field = 1;
2869 s0->current_picture_ptr = NULL;
2872 /* Second field in complementary pair */
2873 s0->first_field = 0;
2878 /* Frame or first field in a potentially complementary pair */
2879 assert(!s0->current_picture_ptr);
2880 s0->first_field = FIELD_PICTURE;
2883 if(!FIELD_PICTURE || s0->first_field) {
2884 if (ff_h264_frame_start(h) < 0) {
2885 s0->first_field = 0;
2889 ff_release_unused_pictures(s, 0);
2895 s->current_picture_ptr->frame_num= h->frame_num; //FIXME frame_num cleanup
2897 assert(s->mb_num == s->mb_width * s->mb_height);
2898 if(first_mb_in_slice << FIELD_OR_MBAFF_PICTURE >= s->mb_num ||
2899 first_mb_in_slice >= s->mb_num){
2900 av_log(h->s.avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
2903 s->resync_mb_x = s->mb_x = first_mb_in_slice % s->mb_width;
2904 s->resync_mb_y = s->mb_y = (first_mb_in_slice / s->mb_width) << FIELD_OR_MBAFF_PICTURE;
2905 if (s->picture_structure == PICT_BOTTOM_FIELD)
2906 s->resync_mb_y = s->mb_y = s->mb_y + 1;
2907 assert(s->mb_y < s->mb_height);
2909 if(s->picture_structure==PICT_FRAME){
2910 h->curr_pic_num= h->frame_num;
2911 h->max_pic_num= 1<< h->sps.log2_max_frame_num;
2913 h->curr_pic_num= 2*h->frame_num + 1;
2914 h->max_pic_num= 1<<(h->sps.log2_max_frame_num + 1);
2917 if(h->nal_unit_type == NAL_IDR_SLICE){
2918 get_ue_golomb(&s->gb); /* idr_pic_id */
2921 if(h->sps.poc_type==0){
2922 h->poc_lsb= get_bits(&s->gb, h->sps.log2_max_poc_lsb);
2924 if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME){
2925 h->delta_poc_bottom= get_se_golomb(&s->gb);
2929 if(h->sps.poc_type==1 && !h->sps.delta_pic_order_always_zero_flag){
2930 h->delta_poc[0]= get_se_golomb(&s->gb);
2932 if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME)
2933 h->delta_poc[1]= get_se_golomb(&s->gb);
2938 if(h->pps.redundant_pic_cnt_present){
2939 h->redundant_pic_count= get_ue_golomb(&s->gb);
2942 //set defaults, might be overridden a few lines later
2943 h->ref_count[0]= h->pps.ref_count[0];
2944 h->ref_count[1]= h->pps.ref_count[1];
2946 if(h->slice_type_nos != AV_PICTURE_TYPE_I){
2947 if(h->slice_type_nos == AV_PICTURE_TYPE_B){
2948 h->direct_spatial_mv_pred= get_bits1(&s->gb);
2950 num_ref_idx_active_override_flag= get_bits1(&s->gb);
2952 if(num_ref_idx_active_override_flag){
2953 h->ref_count[0]= get_ue_golomb(&s->gb) + 1;
2954 if(h->slice_type_nos==AV_PICTURE_TYPE_B)
2955 h->ref_count[1]= get_ue_golomb(&s->gb) + 1;
2957 if(h->ref_count[0]-1 > 32-1 || h->ref_count[1]-1 > 32-1){
2958 av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
2959 h->ref_count[0]= h->ref_count[1]= 1;
2963 if(h->slice_type_nos == AV_PICTURE_TYPE_B)
2970 if(!default_ref_list_done){
2971 ff_h264_fill_default_ref_list(h);
2974 if(h->slice_type_nos!=AV_PICTURE_TYPE_I && ff_h264_decode_ref_pic_list_reordering(h) < 0) {
2975 h->ref_count[1]= h->ref_count[0]= 0;
2979 if(h->slice_type_nos!=AV_PICTURE_TYPE_I){
2980 s->last_picture_ptr= &h->ref_list[0][0];
2981 ff_copy_picture(&s->last_picture, s->last_picture_ptr);
2983 if(h->slice_type_nos==AV_PICTURE_TYPE_B){
2984 s->next_picture_ptr= &h->ref_list[1][0];
2985 ff_copy_picture(&s->next_picture, s->next_picture_ptr);
2988 if( (h->pps.weighted_pred && h->slice_type_nos == AV_PICTURE_TYPE_P )
2989 || (h->pps.weighted_bipred_idc==1 && h->slice_type_nos== AV_PICTURE_TYPE_B ) )
2990 pred_weight_table(h);
2991 else if(h->pps.weighted_bipred_idc==2 && h->slice_type_nos== AV_PICTURE_TYPE_B){
2992 implicit_weight_table(h, -1);
2995 for (i = 0; i < 2; i++) {
2996 h->luma_weight_flag[i] = 0;
2997 h->chroma_weight_flag[i] = 0;
3001 if(h->nal_ref_idc && ff_h264_decode_ref_pic_marking(h0, &s->gb) < 0 &&
3002 s->avctx->error_recognition >= FF_ER_EXPLODE)
3003 return AVERROR_INVALIDDATA;
3006 ff_h264_fill_mbaff_ref_list(h);
3008 if(h->pps.weighted_bipred_idc==2 && h->slice_type_nos== AV_PICTURE_TYPE_B){
3009 implicit_weight_table(h, 0);
3010 implicit_weight_table(h, 1);
3014 if(h->slice_type_nos==AV_PICTURE_TYPE_B && !h->direct_spatial_mv_pred)
3015 ff_h264_direct_dist_scale_factor(h);
3016 ff_h264_direct_ref_list_init(h);
3018 if( h->slice_type_nos != AV_PICTURE_TYPE_I && h->pps.cabac ){
3019 tmp = get_ue_golomb_31(&s->gb);
3021 av_log(s->avctx, AV_LOG_ERROR, "cabac_init_idc overflow\n");
3024 h->cabac_init_idc= tmp;
3027 h->last_qscale_diff = 0;
3028 tmp = h->pps.init_qp + get_se_golomb(&s->gb);
3029 if(tmp>51+6*(h->sps.bit_depth_luma-8)){
3030 av_log(s->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
3034 h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
3035 h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
3036 //FIXME qscale / qp ... stuff
3037 if(h->slice_type == AV_PICTURE_TYPE_SP){
3038 get_bits1(&s->gb); /* sp_for_switch_flag */
3040 if(h->slice_type==AV_PICTURE_TYPE_SP || h->slice_type == AV_PICTURE_TYPE_SI){
3041 get_se_golomb(&s->gb); /* slice_qs_delta */
3044 h->deblocking_filter = 1;
3045 h->slice_alpha_c0_offset = 52;
3046 h->slice_beta_offset = 52;
3047 if( h->pps.deblocking_filter_parameters_present ) {
3048 tmp= get_ue_golomb_31(&s->gb);
3050 av_log(s->avctx, AV_LOG_ERROR, "deblocking_filter_idc %u out of range\n", tmp);
3053 h->deblocking_filter= tmp;
3054 if(h->deblocking_filter < 2)
3055 h->deblocking_filter^= 1; // 1<->0
3057 if( h->deblocking_filter ) {
3058 h->slice_alpha_c0_offset += get_se_golomb(&s->gb) << 1;
3059 h->slice_beta_offset += get_se_golomb(&s->gb) << 1;
3060 if( h->slice_alpha_c0_offset > 104U
3061 || h->slice_beta_offset > 104U){
3062 av_log(s->avctx, AV_LOG_ERROR, "deblocking filter parameters %d %d out of range\n", h->slice_alpha_c0_offset, h->slice_beta_offset);
3068 if( s->avctx->skip_loop_filter >= AVDISCARD_ALL
3069 ||(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY && h->slice_type_nos != AV_PICTURE_TYPE_I)
3070 ||(s->avctx->skip_loop_filter >= AVDISCARD_BIDIR && h->slice_type_nos == AV_PICTURE_TYPE_B)
3071 ||(s->avctx->skip_loop_filter >= AVDISCARD_NONREF && h->nal_ref_idc == 0))
3072 h->deblocking_filter= 0;
3074 if(h->deblocking_filter == 1 && h0->max_contexts > 1) {
3075 if(s->avctx->flags2 & CODEC_FLAG2_FAST) {
3076 /* Cheat slightly for speed:
3077 Do not bother to deblock across slices. */
3078 h->deblocking_filter = 2;
3080 h0->max_contexts = 1;
3081 if(!h0->single_decode_warning) {
3082 av_log(s->avctx, AV_LOG_INFO, "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
3083 h0->single_decode_warning = 1;
3086 av_log(h->s.avctx, AV_LOG_ERROR, "Deblocking switched inside frame.\n");
3091 h->qp_thresh = 15 + 52 - FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset)
3092 - FFMAX3(0, h->pps.chroma_qp_index_offset[0], h->pps.chroma_qp_index_offset[1])
3093 + 6 * (h->sps.bit_depth_luma - 8);
3096 if( h->pps.num_slice_groups > 1 && h->pps.mb_slice_group_map_type >= 3 && h->pps.mb_slice_group_map_type <= 5)
3097 slice_group_change_cycle= get_bits(&s->gb, ?);
3100 h0->last_slice_type = slice_type;
3101 h->slice_num = ++h0->current_slice;
3102 if(h->slice_num >= MAX_SLICES){
3103 av_log(s->avctx, AV_LOG_ERROR, "Too many slices, increase MAX_SLICES and recompile\n");
3108 int *ref2frm= h->ref2frm[h->slice_num&(MAX_SLICES-1)][j];
3109 for(i=0; i<16; i++){
3111 if (h->ref_list[j][i].f.data[0]) {
3113 uint8_t *base = h->ref_list[j][i].f.base[0];
3114 for(k=0; k<h->short_ref_count; k++)
3115 if (h->short_ref[k]->f.base[0] == base) {
3119 for(k=0; k<h->long_ref_count; k++)
3120 if (h->long_ref[k] && h->long_ref[k]->f.base[0] == base) {
3121 id_list[i]= h->short_ref_count + k;
3130 ref2frm[i+2]= 4*id_list[i]
3131 + (h->ref_list[j][i].f.reference & 3);
3134 for(i=16; i<48; i++)
3135 ref2frm[i+4]= 4*id_list[(i-16)>>1]
3136 + (h->ref_list[j][i].f.reference & 3);
3139 //FIXME: fix draw_edges+PAFF+frame threads
3140 h->emu_edge_width= (s->flags&CODEC_FLAG_EMU_EDGE || (!h->sps.frame_mbs_only_flag && s->avctx->active_thread_type)) ? 0 : 16;
3141 h->emu_edge_height= (FRAME_MBAFF || FIELD_PICTURE) ? 0 : h->emu_edge_width;
3143 if(s->avctx->debug&FF_DEBUG_PICT_INFO){
3144 av_log(h->s.avctx, AV_LOG_DEBUG, "slice:%d %s mb:%d %c%s%s pps:%u frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n",
3146 (s->picture_structure==PICT_FRAME ? "F" : s->picture_structure==PICT_TOP_FIELD ? "T" : "B"),
3148 av_get_picture_type_char(h->slice_type), h->slice_type_fixed ? " fix" : "", h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "",
3149 pps_id, h->frame_num,
3150 s->current_picture_ptr->field_poc[0], s->current_picture_ptr->field_poc[1],
3151 h->ref_count[0], h->ref_count[1],
3153 h->deblocking_filter, h->slice_alpha_c0_offset/2-26, h->slice_beta_offset/2-26,
3155 h->use_weight==1 && h->use_weight_chroma ? "c" : "",
3156 h->slice_type == AV_PICTURE_TYPE_B ? (h->direct_spatial_mv_pred ? "SPAT" : "TEMP") : ""
3163 int ff_h264_get_slice_type(const H264Context *h)
3165 switch (h->slice_type) {
3166 case AV_PICTURE_TYPE_P: return 0;
3167 case AV_PICTURE_TYPE_B: return 1;
3168 case AV_PICTURE_TYPE_I: return 2;
3169 case AV_PICTURE_TYPE_SP: return 3;
3170 case AV_PICTURE_TYPE_SI: return 4;
3175 static av_always_inline void fill_filter_caches_inter(H264Context *h, MpegEncContext * const s, int mb_type, int top_xy,
3176 int left_xy[LEFT_MBS], int top_type, int left_type[LEFT_MBS], int mb_xy, int list)
3178 int b_stride = h->b_stride;
3179 int16_t (*mv_dst)[2] = &h->mv_cache[list][scan8[0]];
3180 int8_t *ref_cache = &h->ref_cache[list][scan8[0]];
3181 if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
3182 if(USES_LIST(top_type, list)){
3183 const int b_xy= h->mb2b_xy[top_xy] + 3*b_stride;
3184 const int b8_xy= 4*top_xy + 2;
3185 int (*ref2frm)[64] = h->ref2frm[ h->slice_table[top_xy]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
3186 AV_COPY128(mv_dst - 1*8, s->current_picture.f.motion_val[list][b_xy + 0]);
3188 ref_cache[1 - 1*8]= ref2frm[list][s->current_picture.f.ref_index[list][b8_xy + 0]];
3190 ref_cache[3 - 1*8]= ref2frm[list][s->current_picture.f.ref_index[list][b8_xy + 1]];
3192 AV_ZERO128(mv_dst - 1*8);
3193 AV_WN32A(&ref_cache[0 - 1*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3196 if(!IS_INTERLACED(mb_type^left_type[LTOP])){
3197 if(USES_LIST(left_type[LTOP], list)){
3198 const int b_xy= h->mb2b_xy[left_xy[LTOP]] + 3;
3199 const int b8_xy= 4*left_xy[LTOP] + 1;
3200 int (*ref2frm)[64] = h->ref2frm[ h->slice_table[left_xy[LTOP]]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
3201 AV_COPY32(mv_dst - 1 + 0, s->current_picture.f.motion_val[list][b_xy + b_stride*0]);
3202 AV_COPY32(mv_dst - 1 + 8, s->current_picture.f.motion_val[list][b_xy + b_stride*1]);
3203 AV_COPY32(mv_dst - 1 + 16, s->current_picture.f.motion_val[list][b_xy + b_stride*2]);
3204 AV_COPY32(mv_dst - 1 + 24, s->current_picture.f.motion_val[list][b_xy + b_stride*3]);
3206 ref_cache[-1 + 8]= ref2frm[list][s->current_picture.f.ref_index[list][b8_xy + 2*0]];
3208 ref_cache[-1 + 24]= ref2frm[list][s->current_picture.f.ref_index[list][b8_xy + 2*1]];
3210 AV_ZERO32(mv_dst - 1 + 0);
3211 AV_ZERO32(mv_dst - 1 + 8);
3212 AV_ZERO32(mv_dst - 1 +16);
3213 AV_ZERO32(mv_dst - 1 +24);
3217 ref_cache[-1 + 24]= LIST_NOT_USED;
3222 if(!USES_LIST(mb_type, list)){
3223 fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0,0), 4);
3224 AV_WN32A(&ref_cache[0*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3225 AV_WN32A(&ref_cache[1*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3226 AV_WN32A(&ref_cache[2*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3227 AV_WN32A(&ref_cache[3*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3232 int8_t *ref = &s->current_picture.f.ref_index[list][4*mb_xy];
3233 int (*ref2frm)[64] = h->ref2frm[ h->slice_num&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
3234 uint32_t ref01 = (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101;
3235 uint32_t ref23 = (pack16to32(ref2frm[list][ref[2]],ref2frm[list][ref[3]])&0x00FF00FF)*0x0101;
3236 AV_WN32A(&ref_cache[0*8], ref01);
3237 AV_WN32A(&ref_cache[1*8], ref01);
3238 AV_WN32A(&ref_cache[2*8], ref23);
3239 AV_WN32A(&ref_cache[3*8], ref23);
3243 int16_t (*mv_src)[2] = &s->current_picture.f.motion_val[list][4*s->mb_x + 4*s->mb_y*b_stride];
3244 AV_COPY128(mv_dst + 8*0, mv_src + 0*b_stride);
3245 AV_COPY128(mv_dst + 8*1, mv_src + 1*b_stride);
3246 AV_COPY128(mv_dst + 8*2, mv_src + 2*b_stride);
3247 AV_COPY128(mv_dst + 8*3, mv_src + 3*b_stride);
3253 * @return non zero if the loop filter can be skiped
3255 static int fill_filter_caches(H264Context *h, int mb_type){
3256 MpegEncContext * const s = &h->s;
3257 const int mb_xy= h->mb_xy;
3258 int top_xy, left_xy[LEFT_MBS];
3259 int top_type, left_type[LEFT_MBS];
3263 top_xy = mb_xy - (s->mb_stride << MB_FIELD);
3265 /* Wow, what a mess, why didn't they simplify the interlacing & intra
3266 * stuff, I can't imagine that these complex rules are worth it. */
3268 left_xy[LBOT] = left_xy[LTOP] = mb_xy-1;
3270 const int left_mb_field_flag = IS_INTERLACED(s->current_picture.f.mb_type[mb_xy - 1]);
3271 const int curr_mb_field_flag = IS_INTERLACED(mb_type);
3273 if (left_mb_field_flag != curr_mb_field_flag) {
3274 left_xy[LTOP] -= s->mb_stride;
3277 if(curr_mb_field_flag){
3278 top_xy += s->mb_stride & (((s->current_picture.f.mb_type[top_xy] >> 7) & 1) - 1);
3280 if (left_mb_field_flag != curr_mb_field_flag) {
3281 left_xy[LBOT] += s->mb_stride;
3286 h->top_mb_xy = top_xy;
3287 h->left_mb_xy[LTOP] = left_xy[LTOP];
3288 h->left_mb_xy[LBOT] = left_xy[LBOT];
3290 //for sufficiently low qp, filtering wouldn't do anything
3291 //this is a conservative estimate: could also check beta_offset and more accurate chroma_qp
3292 int qp_thresh = h->qp_thresh; //FIXME strictly we should store qp_thresh for each mb of a slice
3293 int qp = s->current_picture.f.qscale_table[mb_xy];
3295 && (left_xy[LTOP] < 0 || ((qp + s->current_picture.f.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh)
3296 && (top_xy < 0 || ((qp + s->current_picture.f.qscale_table[top_xy ] + 1) >> 1) <= qp_thresh)) {
3299 if ((left_xy[LTOP] < 0 || ((qp + s->current_picture.f.qscale_table[left_xy[LBOT] ] + 1) >> 1) <= qp_thresh) &&
3300 (top_xy < s->mb_stride || ((qp + s->current_picture.f.qscale_table[top_xy - s->mb_stride] + 1) >> 1) <= qp_thresh))
3305 top_type = s->current_picture.f.mb_type[top_xy];
3306 left_type[LTOP] = s->current_picture.f.mb_type[left_xy[LTOP]];
3307 left_type[LBOT] = s->current_picture.f.mb_type[left_xy[LBOT]];
3308 if(h->deblocking_filter == 2){
3309 if(h->slice_table[top_xy ] != h->slice_num) top_type= 0;
3310 if(h->slice_table[left_xy[LBOT]] != h->slice_num) left_type[LTOP]= left_type[LBOT]= 0;
3312 if(h->slice_table[top_xy ] == 0xFFFF) top_type= 0;
3313 if(h->slice_table[left_xy[LBOT]] == 0xFFFF) left_type[LTOP]= left_type[LBOT] =0;
3315 h->top_type = top_type;
3316 h->left_type[LTOP]= left_type[LTOP];
3317 h->left_type[LBOT]= left_type[LBOT];
3319 if(IS_INTRA(mb_type))
3322 fill_filter_caches_inter(h, s, mb_type, top_xy, left_xy, top_type, left_type, mb_xy, 0);
3323 if(h->list_count == 2)
3324 fill_filter_caches_inter(h, s, mb_type, top_xy, left_xy, top_type, left_type, mb_xy, 1);
3326 nnz = h->non_zero_count[mb_xy];
3327 nnz_cache = h->non_zero_count_cache;
3328 AV_COPY32(&nnz_cache[4+8*1], &nnz[ 0]);
3329 AV_COPY32(&nnz_cache[4+8*2], &nnz[ 4]);
3330 AV_COPY32(&nnz_cache[4+8*3], &nnz[ 8]);
3331 AV_COPY32(&nnz_cache[4+8*4], &nnz[12]);
3332 h->cbp= h->cbp_table[mb_xy];
3335 nnz = h->non_zero_count[top_xy];
3336 AV_COPY32(&nnz_cache[4+8*0], &nnz[3*4]);
3339 if(left_type[LTOP]){
3340 nnz = h->non_zero_count[left_xy[LTOP]];
3341 nnz_cache[3+8*1]= nnz[3+0*4];
3342 nnz_cache[3+8*2]= nnz[3+1*4];
3343 nnz_cache[3+8*3]= nnz[3+2*4];
3344 nnz_cache[3+8*4]= nnz[3+3*4];
3347 // CAVLC 8x8dct requires NNZ values for residual decoding that differ from what the loop filter needs
3348 if(!CABAC && h->pps.transform_8x8_mode){
3349 if(IS_8x8DCT(top_type)){
3351 nnz_cache[5+8*0]= (h->cbp_table[top_xy] & 0x4000) >> 12;
3353 nnz_cache[7+8*0]= (h->cbp_table[top_xy] & 0x8000) >> 12;
3355 if(IS_8x8DCT(left_type[LTOP])){
3357 nnz_cache[3+8*2]= (h->cbp_table[left_xy[LTOP]]&0x2000) >> 12; //FIXME check MBAFF
3359 if(IS_8x8DCT(left_type[LBOT])){
3361 nnz_cache[3+8*4]= (h->cbp_table[left_xy[LBOT]]&0x8000) >> 12; //FIXME check MBAFF
3364 if(IS_8x8DCT(mb_type)){
3365 nnz_cache[scan8[0 ]]= nnz_cache[scan8[1 ]]=
3366 nnz_cache[scan8[2 ]]= nnz_cache[scan8[3 ]]= (h->cbp & 0x1000) >> 12;
3368 nnz_cache[scan8[0+ 4]]= nnz_cache[scan8[1+ 4]]=
3369 nnz_cache[scan8[2+ 4]]= nnz_cache[scan8[3+ 4]]= (h->cbp & 0x2000) >> 12;
3371 nnz_cache[scan8[0+ 8]]= nnz_cache[scan8[1+ 8]]=
3372 nnz_cache[scan8[2+ 8]]= nnz_cache[scan8[3+ 8]]= (h->cbp & 0x4000) >> 12;
3374 nnz_cache[scan8[0+12]]= nnz_cache[scan8[1+12]]=
3375 nnz_cache[scan8[2+12]]= nnz_cache[scan8[3+12]]= (h->cbp & 0x8000) >> 12;
3382 static void loop_filter(H264Context *h, int start_x, int end_x){
3383 MpegEncContext * const s = &h->s;
3384 uint8_t *dest_y, *dest_cb, *dest_cr;
3385 int linesize, uvlinesize, mb_x, mb_y;
3386 const int end_mb_y= s->mb_y + FRAME_MBAFF;
3387 const int old_slice_type= h->slice_type;
3388 const int pixel_shift = h->pixel_shift;
3389 const int block_h = 16 >> s->chroma_y_shift;
3391 if(h->deblocking_filter) {
3392 for(mb_x= start_x; mb_x<end_x; mb_x++){
3393 for(mb_y=end_mb_y - FRAME_MBAFF; mb_y<= end_mb_y; mb_y++){
3395 mb_xy = h->mb_xy = mb_x + mb_y*s->mb_stride;
3396 h->slice_num= h->slice_table[mb_xy];
3397 mb_type = s->current_picture.f.mb_type[mb_xy];
3398 h->list_count= h->list_counts[mb_xy];
3401 h->mb_mbaff = h->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
3405 dest_y = s->current_picture.f.data[0] + ((mb_x << pixel_shift) + mb_y * s->linesize ) * 16;
3406 dest_cb = s->current_picture.f.data[1] + (mb_x << pixel_shift) * (8 << CHROMA444) + mb_y * s->uvlinesize * block_h;
3407 dest_cr = s->current_picture.f.data[2] + (mb_x << pixel_shift) * (8 << CHROMA444) + mb_y * s->uvlinesize * block_h;
3408 //FIXME simplify above
3411 linesize = h->mb_linesize = s->linesize * 2;
3412 uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
3413 if(mb_y&1){ //FIXME move out of this function?
3414 dest_y -= s->linesize*15;
3415 dest_cb-= s->uvlinesize * (block_h - 1);
3416 dest_cr-= s->uvlinesize * (block_h - 1);
3419 linesize = h->mb_linesize = s->linesize;
3420 uvlinesize = h->mb_uvlinesize = s->uvlinesize;
3422 backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0);
3423 if(fill_filter_caches(h, mb_type))
3425 h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.f.qscale_table[mb_xy]);
3426 h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.f.qscale_table[mb_xy]);
3429 ff_h264_filter_mb (h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
3431 ff_h264_filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
3436 h->slice_type= old_slice_type;
3438 s->mb_y= end_mb_y - FRAME_MBAFF;
3439 h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
3440 h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
3443 static void predict_field_decoding_flag(H264Context *h){
3444 MpegEncContext * const s = &h->s;
3445 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;