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[] = {
63 void ff_h264_write_back_intra_pred_mode(H264Context *h){
64 int8_t *mode= h->intra4x4_pred_mode + h->mb2br_xy[h->mb_xy];
66 AV_COPY32(mode, h->intra4x4_pred_mode_cache + 4 + 8*4);
67 mode[4]= h->intra4x4_pred_mode_cache[7+8*3];
68 mode[5]= h->intra4x4_pred_mode_cache[7+8*2];
69 mode[6]= h->intra4x4_pred_mode_cache[7+8*1];
73 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
75 int ff_h264_check_intra4x4_pred_mode(H264Context *h){
76 MpegEncContext * const s = &h->s;
77 static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0};
78 static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED};
81 if(!(h->top_samples_available&0x8000)){
83 int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ];
85 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);
88 h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
93 if((h->left_samples_available&0x8888)!=0x8888){
94 static const int mask[4]={0x8000,0x2000,0x80,0x20};
96 if(!(h->left_samples_available&mask[i])){
97 int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ];
99 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);
102 h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status;
109 } //FIXME cleanup like ff_h264_check_intra_pred_mode
112 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
114 int ff_h264_check_intra_pred_mode(H264Context *h, int mode){
115 MpegEncContext * const s = &h->s;
116 static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
117 static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
120 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);
124 if(!(h->top_samples_available&0x8000)){
127 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);
132 if((h->left_samples_available&0x8080) != 0x8080){
134 if(h->left_samples_available&0x8080){ //mad cow disease mode, aka MBAFF + constrained_intra_pred
135 mode= ALZHEIMER_DC_L0T_PRED8x8 + (!(h->left_samples_available&0x8000)) + 2*(mode == DC_128_PRED8x8);
138 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);
146 const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length){
151 // src[0]&0x80; //forbidden bit
152 h->nal_ref_idc= src[0]>>5;
153 h->nal_unit_type= src[0]&0x1F;
157 #if HAVE_FAST_UNALIGNED
160 for(i=0; i+1<length; i+=9){
161 if(!((~AV_RN64A(src+i) & (AV_RN64A(src+i) - 0x0100010001000101ULL)) & 0x8000800080008080ULL))
164 for(i=0; i+1<length; i+=5){
165 if(!((~AV_RN32A(src+i) & (AV_RN32A(src+i) - 0x01000101U)) & 0x80008080U))
168 if(i>0 && !src[i]) i--;
172 for(i=0; i+1<length; i+=2){
174 if(i>0 && src[i-1]==0) i--;
176 if(i+2<length && src[i+1]==0 && src[i+2]<=3){
178 /* startcode, so we must be past the end */
186 if(i>=length-1){ //no escaped 0
188 *consumed= length+1; //+1 for the header
192 bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data
193 av_fast_malloc(&h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length+FF_INPUT_BUFFER_PADDING_SIZE);
194 dst= h->rbsp_buffer[bufidx];
200 //printf("decoding esc\n");
204 //remove escapes (very rare 1:2^22)
206 dst[di++]= src[si++];
207 dst[di++]= src[si++];
208 }else if(src[si]==0 && src[si+1]==0){
209 if(src[si+2]==3){ //escape
214 }else //next start code
218 dst[di++]= src[si++];
221 dst[di++]= src[si++];
224 memset(dst+di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
227 *consumed= si + 1;//+1 for the header
228 //FIXME store exact number of bits in the getbitcontext (it is needed for decoding)
233 * Identify the exact end of the bitstream
234 * @return the length of the trailing, or 0 if damaged
236 static int ff_h264_decode_rbsp_trailing(H264Context *h, const uint8_t *src){
240 tprintf(h->s.avctx, "rbsp trailing %X\n", v);
249 static inline int get_lowest_part_list_y(H264Context *h, Picture *pic, int n, int height,
250 int y_offset, int list){
251 int raw_my= h->mv_cache[list][ scan8[n] ][1];
252 int filter_height= (raw_my&3) ? 2 : 0;
253 int full_my= (raw_my>>2) + y_offset;
254 int top = full_my - filter_height, bottom = full_my + height + filter_height;
256 return FFMAX(abs(top), bottom);
259 static inline void get_lowest_part_y(H264Context *h, int refs[2][48], int n, int height,
260 int y_offset, int list0, int list1, int *nrefs){
261 MpegEncContext * const s = &h->s;
264 y_offset += 16*(s->mb_y >> MB_FIELD);
267 int ref_n = h->ref_cache[0][ scan8[n] ];
268 Picture *ref= &h->ref_list[0][ref_n];
270 // Error resilience puts the current picture in the ref list.
271 // Don't try to wait on these as it will cause a deadlock.
272 // Fields can wait on each other, though.
273 if(ref->thread_opaque != s->current_picture.thread_opaque ||
274 (ref->reference&3) != s->picture_structure) {
275 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 0);
276 if (refs[0][ref_n] < 0) nrefs[0] += 1;
277 refs[0][ref_n] = FFMAX(refs[0][ref_n], my);
282 int ref_n = h->ref_cache[1][ scan8[n] ];
283 Picture *ref= &h->ref_list[1][ref_n];
285 if(ref->thread_opaque != s->current_picture.thread_opaque ||
286 (ref->reference&3) != s->picture_structure) {
287 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 1);
288 if (refs[1][ref_n] < 0) nrefs[1] += 1;
289 refs[1][ref_n] = FFMAX(refs[1][ref_n], my);
295 * Wait until all reference frames are available for MC operations.
297 * @param h the H264 context
299 static void await_references(H264Context *h){
300 MpegEncContext * const s = &h->s;
301 const int mb_xy= h->mb_xy;
302 const int mb_type= s->current_picture.mb_type[mb_xy];
307 memset(refs, -1, sizeof(refs));
309 if(IS_16X16(mb_type)){
310 get_lowest_part_y(h, refs, 0, 16, 0,
311 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
312 }else if(IS_16X8(mb_type)){
313 get_lowest_part_y(h, refs, 0, 8, 0,
314 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
315 get_lowest_part_y(h, refs, 8, 8, 8,
316 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
317 }else if(IS_8X16(mb_type)){
318 get_lowest_part_y(h, refs, 0, 16, 0,
319 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
320 get_lowest_part_y(h, refs, 4, 16, 0,
321 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
325 assert(IS_8X8(mb_type));
328 const int sub_mb_type= h->sub_mb_type[i];
330 int y_offset= (i&2)<<2;
332 if(IS_SUB_8X8(sub_mb_type)){
333 get_lowest_part_y(h, refs, n , 8, y_offset,
334 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
335 }else if(IS_SUB_8X4(sub_mb_type)){
336 get_lowest_part_y(h, refs, n , 4, y_offset,
337 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
338 get_lowest_part_y(h, refs, n+2, 4, y_offset+4,
339 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
340 }else if(IS_SUB_4X8(sub_mb_type)){
341 get_lowest_part_y(h, refs, n , 8, y_offset,
342 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
343 get_lowest_part_y(h, refs, n+1, 8, y_offset,
344 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
347 assert(IS_SUB_4X4(sub_mb_type));
349 int sub_y_offset= y_offset + 2*(j&2);
350 get_lowest_part_y(h, refs, n+j, 4, sub_y_offset,
351 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
357 for(list=h->list_count-1; list>=0; list--){
358 for(ref=0; ref<48 && nrefs[list]; ref++){
359 int row = refs[list][ref];
361 Picture *ref_pic = &h->ref_list[list][ref];
362 int ref_field = ref_pic->reference - 1;
363 int ref_field_picture = ref_pic->field_picture;
364 int pic_height = 16*s->mb_height >> ref_field_picture;
369 if(!FIELD_PICTURE && ref_field_picture){ // frame referencing two fields
370 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN((row >> 1) - !(row&1), pic_height-1), 1);
371 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN((row >> 1) , pic_height-1), 0);
372 }else if(FIELD_PICTURE && !ref_field_picture){ // field referencing one field of a frame
373 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row*2 + ref_field , pic_height-1), 0);
374 }else if(FIELD_PICTURE){
375 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row, pic_height-1), ref_field);
377 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row, pic_height-1), 0);
386 * DCT transforms the 16 dc values.
387 * @param qp quantization parameter ??? FIXME
389 static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
390 // const int qmul= dequant_coeff[qp][0];
392 int temp[16]; //FIXME check if this is a good idea
393 static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
394 static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
397 const int offset= y_offset[i];
398 const int z0= block[offset+stride*0] + block[offset+stride*4];
399 const int z1= block[offset+stride*0] - block[offset+stride*4];
400 const int z2= block[offset+stride*1] - block[offset+stride*5];
401 const int z3= block[offset+stride*1] + block[offset+stride*5];
410 const int offset= x_offset[i];
411 const int z0= temp[4*0+i] + temp[4*2+i];
412 const int z1= temp[4*0+i] - temp[4*2+i];
413 const int z2= temp[4*1+i] - temp[4*3+i];
414 const int z3= temp[4*1+i] + temp[4*3+i];
416 block[stride*0 +offset]= (z0 + z3)>>1;
417 block[stride*2 +offset]= (z1 + z2)>>1;
418 block[stride*8 +offset]= (z1 - z2)>>1;
419 block[stride*10+offset]= (z0 - z3)>>1;
428 static void chroma_dc_dct_c(DCTELEM *block){
429 const int stride= 16*2;
430 const int xStride= 16;
433 a= block[stride*0 + xStride*0];
434 b= block[stride*0 + xStride*1];
435 c= block[stride*1 + xStride*0];
436 d= block[stride*1 + xStride*1];
443 block[stride*0 + xStride*0]= (a+c);
444 block[stride*0 + xStride*1]= (e+b);
445 block[stride*1 + xStride*0]= (a-c);
446 block[stride*1 + xStride*1]= (e-b);
450 static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list,
451 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
452 int src_x_offset, int src_y_offset,
453 qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op,
454 int pixel_shift, int chroma444){
455 MpegEncContext * const s = &h->s;
456 const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8;
457 int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8;
458 const int luma_xy= (mx&3) + ((my&3)<<2);
459 int offset = ((mx>>2) << pixel_shift) + (my>>2)*h->mb_linesize;
460 uint8_t * src_y = pic->data[0] + offset;
461 uint8_t * src_cb, * src_cr;
462 int extra_width= h->emu_edge_width;
463 int extra_height= h->emu_edge_height;
465 const int full_mx= mx>>2;
466 const int full_my= my>>2;
467 const int pic_width = 16*s->mb_width;
468 const int pic_height = 16*s->mb_height >> MB_FIELD;
470 if(mx&7) extra_width -= 3;
471 if(my&7) extra_height -= 3;
473 if( full_mx < 0-extra_width
474 || full_my < 0-extra_height
475 || full_mx + 16/*FIXME*/ > pic_width + extra_width
476 || full_my + 16/*FIXME*/ > pic_height + extra_height){
477 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_y - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize, 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
478 src_y= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
482 qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); //FIXME try variable height perhaps?
484 qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize);
487 if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return;
490 src_cb = pic->data[1] + offset;
492 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cb - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
493 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
494 src_cb= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
496 qpix_op[luma_xy](dest_cb, src_cb, h->mb_linesize); //FIXME try variable height perhaps?
498 qpix_op[luma_xy](dest_cb + delta, src_cb + delta, h->mb_linesize);
501 src_cr = pic->data[2] + offset;
503 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cr - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
504 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
505 src_cr= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
507 qpix_op[luma_xy](dest_cr, src_cr, h->mb_linesize); //FIXME try variable height perhaps?
509 qpix_op[luma_xy](dest_cr + delta, src_cr + delta, h->mb_linesize);
515 // chroma offset when predicting from a field of opposite parity
516 my += 2 * ((s->mb_y & 1) - (pic->reference - 1));
517 emu |= (my>>3) < 0 || (my>>3) + 8 >= (pic_height>>1);
519 src_cb= pic->data[1] + ((mx>>3) << pixel_shift) + (my>>3)*h->mb_uvlinesize;
520 src_cr= pic->data[2] + ((mx>>3) << pixel_shift) + (my>>3)*h->mb_uvlinesize;
523 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cb, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
524 src_cb= s->edge_emu_buffer;
526 chroma_op(dest_cb, src_cb, h->mb_uvlinesize, chroma_height, mx&7, my&7);
529 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cr, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
530 src_cr= s->edge_emu_buffer;
532 chroma_op(dest_cr, src_cr, h->mb_uvlinesize, chroma_height, mx&7, my&7);
535 static inline void mc_part_std(H264Context *h, int n, int square, int chroma_height, int delta,
536 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
537 int x_offset, int y_offset,
538 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
539 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
540 int list0, int list1, int pixel_shift, int chroma444){
541 MpegEncContext * const s = &h->s;
542 qpel_mc_func *qpix_op= qpix_put;
543 h264_chroma_mc_func chroma_op= chroma_put;
545 dest_y += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
547 dest_cb += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
548 dest_cr += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
550 dest_cb += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
551 dest_cr += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
553 x_offset += 8*s->mb_x;
554 y_offset += 8*(s->mb_y >> MB_FIELD);
557 Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ];
558 mc_dir_part(h, ref, n, square, chroma_height, delta, 0,
559 dest_y, dest_cb, dest_cr, x_offset, y_offset,
560 qpix_op, chroma_op, pixel_shift, chroma444);
563 chroma_op= chroma_avg;
567 Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ];
568 mc_dir_part(h, ref, n, square, chroma_height, delta, 1,
569 dest_y, dest_cb, dest_cr, x_offset, y_offset,
570 qpix_op, chroma_op, pixel_shift, chroma444);
574 static inline void mc_part_weighted(H264Context *h, int n, int square, int chroma_height, int delta,
575 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
576 int x_offset, int y_offset,
577 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
578 h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op,
579 h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg,
580 int list0, int list1, int pixel_shift, int chroma444){
581 MpegEncContext * const s = &h->s;
583 dest_y += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
585 chroma_weight_avg = luma_weight_avg;
586 chroma_weight_op = luma_weight_op;
587 dest_cb += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
588 dest_cr += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
590 dest_cb += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
591 dest_cr += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
593 x_offset += 8*s->mb_x;
594 y_offset += 8*(s->mb_y >> MB_FIELD);
597 /* don't optimize for luma-only case, since B-frames usually
598 * use implicit weights => chroma too. */
599 uint8_t *tmp_cb = s->obmc_scratchpad;
600 uint8_t *tmp_cr = s->obmc_scratchpad + (16 << pixel_shift);
601 uint8_t *tmp_y = s->obmc_scratchpad + 16*h->mb_uvlinesize;
602 int refn0 = h->ref_cache[0][ scan8[n] ];
603 int refn1 = h->ref_cache[1][ scan8[n] ];
605 mc_dir_part(h, &h->ref_list[0][refn0], n, square, chroma_height, delta, 0,
606 dest_y, dest_cb, dest_cr,
607 x_offset, y_offset, qpix_put, chroma_put, pixel_shift, chroma444);
608 mc_dir_part(h, &h->ref_list[1][refn1], n, square, chroma_height, delta, 1,
609 tmp_y, tmp_cb, tmp_cr,
610 x_offset, y_offset, qpix_put, chroma_put, pixel_shift, chroma444);
612 if(h->use_weight == 2){
613 int weight0 = h->implicit_weight[refn0][refn1][s->mb_y&1];
614 int weight1 = 64 - weight0;
615 luma_weight_avg( dest_y, tmp_y, h-> mb_linesize, 5, weight0, weight1, 0);
616 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, 5, weight0, weight1, 0);
617 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, 5, weight0, weight1, 0);
619 luma_weight_avg(dest_y, tmp_y, h->mb_linesize, h->luma_log2_weight_denom,
620 h->luma_weight[refn0][0][0] , h->luma_weight[refn1][1][0],
621 h->luma_weight[refn0][0][1] + h->luma_weight[refn1][1][1]);
622 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom,
623 h->chroma_weight[refn0][0][0][0] , h->chroma_weight[refn1][1][0][0],
624 h->chroma_weight[refn0][0][0][1] + h->chroma_weight[refn1][1][0][1]);
625 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom,
626 h->chroma_weight[refn0][0][1][0] , h->chroma_weight[refn1][1][1][0],
627 h->chroma_weight[refn0][0][1][1] + h->chroma_weight[refn1][1][1][1]);
630 int list = list1 ? 1 : 0;
631 int refn = h->ref_cache[list][ scan8[n] ];
632 Picture *ref= &h->ref_list[list][refn];
633 mc_dir_part(h, ref, n, square, chroma_height, delta, list,
634 dest_y, dest_cb, dest_cr, x_offset, y_offset,
635 qpix_put, chroma_put, pixel_shift, chroma444);
637 luma_weight_op(dest_y, h->mb_linesize, h->luma_log2_weight_denom,
638 h->luma_weight[refn][list][0], h->luma_weight[refn][list][1]);
639 if(h->use_weight_chroma){
640 chroma_weight_op(dest_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom,
641 h->chroma_weight[refn][list][0][0], h->chroma_weight[refn][list][0][1]);
642 chroma_weight_op(dest_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom,
643 h->chroma_weight[refn][list][1][0], h->chroma_weight[refn][list][1][1]);
648 static inline void mc_part(H264Context *h, int n, int square, int chroma_height, int delta,
649 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
650 int x_offset, int y_offset,
651 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
652 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
653 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
654 int list0, int list1, int pixel_shift, int chroma444){
655 if((h->use_weight==2 && list0 && list1
656 && (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ][h->s.mb_y&1] != 32))
658 mc_part_weighted(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
659 x_offset, y_offset, qpix_put, chroma_put,
660 weight_op[0], weight_op[3], weight_avg[0],
661 weight_avg[3], list0, list1, pixel_shift, chroma444);
663 mc_part_std(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
664 x_offset, y_offset, qpix_put, chroma_put, qpix_avg,
665 chroma_avg, list0, list1, pixel_shift, chroma444);
668 static inline void prefetch_motion(H264Context *h, int list, int pixel_shift, int chroma444){
669 /* fetch pixels for estimated mv 4 macroblocks ahead
670 * optimized for 64byte cache lines */
671 MpegEncContext * const s = &h->s;
672 const int refn = h->ref_cache[list][scan8[0]];
674 const int mx= (h->mv_cache[list][scan8[0]][0]>>2) + 16*s->mb_x + 8;
675 const int my= (h->mv_cache[list][scan8[0]][1]>>2) + 16*s->mb_y;
676 uint8_t **src= h->ref_list[list][refn].data;
677 int off= (mx << pixel_shift) + (my + (s->mb_x&3)*4)*h->mb_linesize + (64 << pixel_shift);
678 s->dsp.prefetch(src[0]+off, s->linesize, 4);
680 s->dsp.prefetch(src[1]+off, s->linesize, 4);
681 s->dsp.prefetch(src[2]+off, s->linesize, 4);
683 off= ((mx>>1) << pixel_shift) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + (64 << pixel_shift);
684 s->dsp.prefetch(src[1]+off, src[2]-src[1], 2);
689 static av_always_inline void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
690 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
691 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
692 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
693 int pixel_shift, int chroma444){
694 MpegEncContext * const s = &h->s;
695 const int mb_xy= h->mb_xy;
696 const int mb_type= s->current_picture.mb_type[mb_xy];
698 assert(IS_INTER(mb_type));
700 if(HAVE_PTHREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME))
702 prefetch_motion(h, 0, pixel_shift, chroma444);
704 if(IS_16X16(mb_type)){
705 mc_part(h, 0, 1, 8, 0, dest_y, dest_cb, dest_cr, 0, 0,
706 qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
707 weight_op, weight_avg,
708 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
709 pixel_shift, chroma444);
710 }else if(IS_16X8(mb_type)){
711 mc_part(h, 0, 0, 4, 8 << pixel_shift, dest_y, dest_cb, dest_cr, 0, 0,
712 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
713 &weight_op[1], &weight_avg[1],
714 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
715 pixel_shift, chroma444);
716 mc_part(h, 8, 0, 4, 8 << pixel_shift, dest_y, dest_cb, dest_cr, 0, 4,
717 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
718 &weight_op[1], &weight_avg[1],
719 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1),
720 pixel_shift, chroma444);
721 }else if(IS_8X16(mb_type)){
722 mc_part(h, 0, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
723 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
724 &weight_op[2], &weight_avg[2],
725 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
726 pixel_shift, chroma444);
727 mc_part(h, 4, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
728 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
729 &weight_op[2], &weight_avg[2],
730 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1),
731 pixel_shift, chroma444);
735 assert(IS_8X8(mb_type));
738 const int sub_mb_type= h->sub_mb_type[i];
740 int x_offset= (i&1)<<2;
741 int y_offset= (i&2)<<1;
743 if(IS_SUB_8X8(sub_mb_type)){
744 mc_part(h, n, 1, 4, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset,
745 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
746 &weight_op[3], &weight_avg[3],
747 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
748 pixel_shift, chroma444);
749 }else if(IS_SUB_8X4(sub_mb_type)){
750 mc_part(h, n , 0, 2, 4 << pixel_shift, dest_y, dest_cb, dest_cr, x_offset, y_offset,
751 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
752 &weight_op[4], &weight_avg[4],
753 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
754 pixel_shift, chroma444);
755 mc_part(h, n+2, 0, 2, 4 << pixel_shift, dest_y, dest_cb, dest_cr, x_offset, y_offset+2,
756 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
757 &weight_op[4], &weight_avg[4],
758 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
759 pixel_shift, chroma444);
760 }else if(IS_SUB_4X8(sub_mb_type)){
761 mc_part(h, n , 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset,
762 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
763 &weight_op[5], &weight_avg[5],
764 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
765 pixel_shift, chroma444);
766 mc_part(h, n+1, 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset,
767 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
768 &weight_op[5], &weight_avg[5],
769 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
770 pixel_shift, chroma444);
773 assert(IS_SUB_4X4(sub_mb_type));
775 int sub_x_offset= x_offset + 2*(j&1);
776 int sub_y_offset= y_offset + (j&2);
777 mc_part(h, n+j, 1, 2, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
778 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
779 &weight_op[6], &weight_avg[6],
780 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
781 pixel_shift, chroma444);
787 prefetch_motion(h, 1, pixel_shift, chroma444);
790 #define hl_motion_fn(sh, bits) \
791 static av_always_inline void hl_motion_ ## bits(H264Context *h, \
793 uint8_t *dest_cb, uint8_t *dest_cr, \
794 qpel_mc_func (*qpix_put)[16], \
795 h264_chroma_mc_func (*chroma_put), \
796 qpel_mc_func (*qpix_avg)[16], \
797 h264_chroma_mc_func (*chroma_avg), \
798 h264_weight_func *weight_op, \
799 h264_biweight_func *weight_avg, \
802 hl_motion(h, dest_y, dest_cb, dest_cr, qpix_put, chroma_put, \
803 qpix_avg, chroma_avg, weight_op, weight_avg, sh, chroma444); \
808 static void free_tables(H264Context *h, int free_rbsp){
812 av_freep(&h->intra4x4_pred_mode);
813 av_freep(&h->chroma_pred_mode_table);
814 av_freep(&h->cbp_table);
815 av_freep(&h->mvd_table[0]);
816 av_freep(&h->mvd_table[1]);
817 av_freep(&h->direct_table);
818 av_freep(&h->non_zero_count);
819 av_freep(&h->slice_table_base);
820 h->slice_table= NULL;
821 av_freep(&h->list_counts);
823 av_freep(&h->mb2b_xy);
824 av_freep(&h->mb2br_xy);
826 for(i = 0; i < MAX_THREADS; i++) {
827 hx = h->thread_context[i];
829 av_freep(&hx->top_borders[1]);
830 av_freep(&hx->top_borders[0]);
831 av_freep(&hx->s.obmc_scratchpad);
833 av_freep(&hx->rbsp_buffer[1]);
834 av_freep(&hx->rbsp_buffer[0]);
835 hx->rbsp_buffer_size[0] = 0;
836 hx->rbsp_buffer_size[1] = 0;
838 if (i) av_freep(&h->thread_context[i]);
842 static void init_dequant8_coeff_table(H264Context *h){
844 const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
847 h->dequant8_coeff[i] = h->dequant8_buffer[i];
849 if(!memcmp(h->pps.scaling_matrix8[j], h->pps.scaling_matrix8[i], 64*sizeof(uint8_t))){
850 h->dequant8_coeff[i] = h->dequant8_buffer[j];
857 for(q=0; q<max_qp+1; q++){
861 h->dequant8_coeff[i][q][(x>>3)|((x&7)<<3)] =
862 ((uint32_t)dequant8_coeff_init[idx][ dequant8_coeff_init_scan[((x>>1)&12) | (x&3)] ] *
863 h->pps.scaling_matrix8[i][x]) << shift;
868 static void init_dequant4_coeff_table(H264Context *h){
870 const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
872 h->dequant4_coeff[i] = h->dequant4_buffer[i];
874 if(!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], 16*sizeof(uint8_t))){
875 h->dequant4_coeff[i] = h->dequant4_buffer[j];
882 for(q=0; q<max_qp+1; q++){
883 int shift = div6[q] + 2;
886 h->dequant4_coeff[i][q][(x>>2)|((x<<2)&0xF)] =
887 ((uint32_t)dequant4_coeff_init[idx][(x&1) + ((x>>2)&1)] *
888 h->pps.scaling_matrix4[i][x]) << shift;
893 static void init_dequant_tables(H264Context *h){
895 init_dequant4_coeff_table(h);
896 if(h->pps.transform_8x8_mode)
897 init_dequant8_coeff_table(h);
898 if(h->sps.transform_bypass){
901 h->dequant4_coeff[i][0][x] = 1<<6;
902 if(h->pps.transform_8x8_mode)
905 h->dequant8_coeff[i][0][x] = 1<<6;
910 int ff_h264_alloc_tables(H264Context *h){
911 MpegEncContext * const s = &h->s;
912 const int big_mb_num= s->mb_stride * (s->mb_height+1);
913 const int row_mb_num= 2*s->mb_stride*s->avctx->thread_count;
916 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->intra4x4_pred_mode, row_mb_num * 8 * sizeof(uint8_t), fail)
918 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->non_zero_count , big_mb_num * 48 * sizeof(uint8_t), fail)
919 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->slice_table_base , (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base), fail)
920 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->cbp_table, big_mb_num * sizeof(uint16_t), fail)
922 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t), fail)
923 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[0], 16*row_mb_num * sizeof(uint8_t), fail);
924 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[1], 16*row_mb_num * sizeof(uint8_t), fail);
925 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->direct_table, 4*big_mb_num * sizeof(uint8_t) , fail);
926 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->list_counts, big_mb_num * sizeof(uint8_t), fail)
928 memset(h->slice_table_base, -1, (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base));
929 h->slice_table= h->slice_table_base + s->mb_stride*2 + 1;
931 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2b_xy , big_mb_num * sizeof(uint32_t), fail);
932 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2br_xy , big_mb_num * sizeof(uint32_t), fail);
933 for(y=0; y<s->mb_height; y++){
934 for(x=0; x<s->mb_width; x++){
935 const int mb_xy= x + y*s->mb_stride;
936 const int b_xy = 4*x + 4*y*h->b_stride;
938 h->mb2b_xy [mb_xy]= b_xy;
939 h->mb2br_xy[mb_xy]= 8*(FMO ? mb_xy : (mb_xy % (2*s->mb_stride)));
943 s->obmc_scratchpad = NULL;
945 if(!h->dequant4_coeff[0])
946 init_dequant_tables(h);
955 * Mimic alloc_tables(), but for every context thread.
957 static void clone_tables(H264Context *dst, H264Context *src, int i){
958 MpegEncContext * const s = &src->s;
959 dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i*8*2*s->mb_stride;
960 dst->non_zero_count = src->non_zero_count;
961 dst->slice_table = src->slice_table;
962 dst->cbp_table = src->cbp_table;
963 dst->mb2b_xy = src->mb2b_xy;
964 dst->mb2br_xy = src->mb2br_xy;
965 dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
966 dst->mvd_table[0] = src->mvd_table[0] + i*8*2*s->mb_stride;
967 dst->mvd_table[1] = src->mvd_table[1] + i*8*2*s->mb_stride;
968 dst->direct_table = src->direct_table;
969 dst->list_counts = src->list_counts;
971 dst->s.obmc_scratchpad = NULL;
972 ff_h264_pred_init(&dst->hpc, src->s.codec_id, src->sps.bit_depth_luma);
977 * Allocate buffers which are not shared amongst multiple threads.
979 static int context_init(H264Context *h){
980 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[0], h->s.mb_width * 16*3 * sizeof(uint8_t)*2, fail)
981 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[1], h->s.mb_width * 16*3 * sizeof(uint8_t)*2, fail)
983 h->ref_cache[0][scan8[5 ]+1] = h->ref_cache[0][scan8[7 ]+1] = h->ref_cache[0][scan8[13]+1] =
984 h->ref_cache[1][scan8[5 ]+1] = h->ref_cache[1][scan8[7 ]+1] = h->ref_cache[1][scan8[13]+1] = PART_NOT_AVAILABLE;
988 return -1; // free_tables will clean up for us
991 static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size);
993 static av_cold void common_init(H264Context *h){
994 MpegEncContext * const s = &h->s;
996 s->width = s->avctx->width;
997 s->height = s->avctx->height;
998 s->codec_id= s->avctx->codec->id;
1000 ff_h264dsp_init(&h->h264dsp, 8);
1001 ff_h264_pred_init(&h->hpc, s->codec_id, 8);
1003 h->dequant_coeff_pps= -1;
1004 s->unrestricted_mv=1;
1005 s->decode=1; //FIXME
1007 dsputil_init(&s->dsp, s->avctx); // needed so that idct permutation is known early
1009 memset(h->pps.scaling_matrix4, 16, 6*16*sizeof(uint8_t));
1010 memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t));
1013 int ff_h264_decode_extradata(H264Context *h)
1015 AVCodecContext *avctx = h->s.avctx;
1017 if(*(char *)avctx->extradata == 1){
1018 int i, cnt, nalsize;
1019 unsigned char *p = avctx->extradata;
1023 if(avctx->extradata_size < 7) {
1024 av_log(avctx, AV_LOG_ERROR, "avcC too short\n");
1027 /* sps and pps in the avcC always have length coded with 2 bytes,
1028 so put a fake nal_length_size = 2 while parsing them */
1029 h->nal_length_size = 2;
1030 // Decode sps from avcC
1031 cnt = *(p+5) & 0x1f; // Number of sps
1033 for (i = 0; i < cnt; i++) {
1034 nalsize = AV_RB16(p) + 2;
1035 if(decode_nal_units(h, p, nalsize) < 0) {
1036 av_log(avctx, AV_LOG_ERROR, "Decoding sps %d from avcC failed\n", i);
1041 // Decode pps from avcC
1042 cnt = *(p++); // Number of pps
1043 for (i = 0; i < cnt; i++) {
1044 nalsize = AV_RB16(p) + 2;
1045 if (decode_nal_units(h, p, nalsize) < 0) {
1046 av_log(avctx, AV_LOG_ERROR, "Decoding pps %d from avcC failed\n", i);
1051 // Now store right nal length size, that will be use to parse all other nals
1052 h->nal_length_size = ((*(((char*)(avctx->extradata))+4))&0x03)+1;
1055 if(decode_nal_units(h, avctx->extradata, avctx->extradata_size) < 0)
1061 av_cold int ff_h264_decode_init(AVCodecContext *avctx){
1062 H264Context *h= avctx->priv_data;
1063 MpegEncContext * const s = &h->s;
1065 MPV_decode_defaults(s);
1070 s->out_format = FMT_H264;
1071 s->workaround_bugs= avctx->workaround_bugs;
1074 // s->decode_mb= ff_h263_decode_mb;
1075 s->quarter_sample = 1;
1076 if(!avctx->has_b_frames)
1079 avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
1081 ff_h264_decode_init_vlc();
1084 h->sps.bit_depth_luma = avctx->bits_per_raw_sample = 8;
1086 h->thread_context[0] = h;
1087 h->outputed_poc = h->next_outputed_poc = INT_MIN;
1088 h->prev_poc_msb= 1<<16;
1090 ff_h264_reset_sei(h);
1091 if(avctx->codec_id == CODEC_ID_H264){
1092 if(avctx->ticks_per_frame == 1){
1093 s->avctx->time_base.den *=2;
1095 avctx->ticks_per_frame = 2;
1098 if(avctx->extradata_size > 0 && avctx->extradata &&
1099 ff_h264_decode_extradata(h))
1102 if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames < h->sps.num_reorder_frames){
1103 s->avctx->has_b_frames = h->sps.num_reorder_frames;
1110 #define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b)+(size))))
1111 static void copy_picture_range(Picture **to, Picture **from, int count, MpegEncContext *new_base, MpegEncContext *old_base)
1115 for (i=0; i<count; i++){
1116 assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) ||
1117 IN_RANGE(from[i], old_base->picture, sizeof(Picture) * old_base->picture_count) ||
1119 to[i] = REBASE_PICTURE(from[i], new_base, old_base);
1123 static void copy_parameter_set(void **to, void **from, int count, int size)
1127 for (i=0; i<count; i++){
1128 if (to[i] && !from[i]) av_freep(&to[i]);
1129 else if (from[i] && !to[i]) to[i] = av_malloc(size);
1131 if (from[i]) memcpy(to[i], from[i], size);
1135 static int decode_init_thread_copy(AVCodecContext *avctx){
1136 H264Context *h= avctx->priv_data;
1138 if (!avctx->is_copy) return 0;
1139 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1140 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
1145 #define copy_fields(to, from, start_field, end_field) memcpy(&to->start_field, &from->start_field, (char*)&to->end_field - (char*)&to->start_field)
1146 static int decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src){
1147 H264Context *h= dst->priv_data, *h1= src->priv_data;
1148 MpegEncContext * const s = &h->s, * const s1 = &h1->s;
1149 int inited = s->context_initialized, err;
1152 if(dst == src || !s1->context_initialized) return 0;
1154 err = ff_mpeg_update_thread_context(dst, src);
1157 //FIXME handle width/height changing
1159 for(i = 0; i < MAX_SPS_COUNT; i++)
1160 av_freep(h->sps_buffers + i);
1162 for(i = 0; i < MAX_PPS_COUNT; i++)
1163 av_freep(h->pps_buffers + i);
1165 memcpy(&h->s + 1, &h1->s + 1, sizeof(H264Context) - sizeof(MpegEncContext)); //copy all fields after MpegEnc
1166 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1167 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
1168 ff_h264_alloc_tables(h);
1172 h->rbsp_buffer[i] = NULL;
1173 h->rbsp_buffer_size[i] = 0;
1176 h->thread_context[0] = h;
1178 // frame_start may not be called for the next thread (if it's decoding a bottom field)
1179 // so this has to be allocated here
1180 h->s.obmc_scratchpad = av_malloc(16*6*s->linesize);
1182 s->dsp.clear_blocks(h->mb);
1183 s->dsp.clear_blocks(h->mb+(24*16<<h->pixel_shift));
1186 //extradata/NAL handling
1187 h->is_avc = h1->is_avc;
1190 copy_parameter_set((void**)h->sps_buffers, (void**)h1->sps_buffers, MAX_SPS_COUNT, sizeof(SPS));
1192 copy_parameter_set((void**)h->pps_buffers, (void**)h1->pps_buffers, MAX_PPS_COUNT, sizeof(PPS));
1195 //Dequantization matrices
1196 //FIXME these are big - can they be only copied when PPS changes?
1197 copy_fields(h, h1, dequant4_buffer, dequant4_coeff);
1200 h->dequant4_coeff[i] = h->dequant4_buffer[0] + (h1->dequant4_coeff[i] - h1->dequant4_buffer[0]);
1203 h->dequant8_coeff[i] = h->dequant8_buffer[0] + (h1->dequant8_coeff[i] - h1->dequant8_buffer[0]);
1205 h->dequant_coeff_pps = h1->dequant_coeff_pps;
1208 copy_fields(h, h1, poc_lsb, redundant_pic_count);
1211 copy_fields(h, h1, ref_count, list_count);
1212 copy_fields(h, h1, ref_list, intra_gb);
1213 copy_fields(h, h1, short_ref, cabac_init_idc);
1215 copy_picture_range(h->short_ref, h1->short_ref, 32, s, s1);
1216 copy_picture_range(h->long_ref, h1->long_ref, 32, s, s1);
1217 copy_picture_range(h->delayed_pic, h1->delayed_pic, MAX_DELAYED_PIC_COUNT+2, s, s1);
1219 h->last_slice_type = h1->last_slice_type;
1221 if(!s->current_picture_ptr) return 0;
1224 ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
1225 h->prev_poc_msb = h->poc_msb;
1226 h->prev_poc_lsb = h->poc_lsb;
1228 h->prev_frame_num_offset= h->frame_num_offset;
1229 h->prev_frame_num = h->frame_num;
1230 h->outputed_poc = h->next_outputed_poc;
1235 int ff_h264_frame_start(H264Context *h){
1236 MpegEncContext * const s = &h->s;
1238 const int pixel_shift = h->pixel_shift;
1239 int thread_count = (s->avctx->active_thread_type & FF_THREAD_SLICE) ? s->avctx->thread_count : 1;
1241 if(MPV_frame_start(s, s->avctx) < 0)
1243 ff_er_frame_start(s);
1245 * MPV_frame_start uses pict_type to derive key_frame.
1246 * This is incorrect for H.264; IDR markings must be used.
1247 * Zero here; IDR markings per slice in frame or fields are ORed in later.
1248 * See decode_nal_units().
1250 s->current_picture_ptr->key_frame= 0;
1251 s->current_picture_ptr->mmco_reset= 0;
1253 assert(s->linesize && s->uvlinesize);
1255 for(i=0; i<16; i++){
1256 h->block_offset[i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 4*s->linesize*((scan8[i] - scan8[0])>>3);
1257 h->block_offset[48+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 8*s->linesize*((scan8[i] - scan8[0])>>3);
1259 for(i=0; i<16; i++){
1260 h->block_offset[16+i]=
1261 h->block_offset[32+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3);
1262 h->block_offset[48+16+i]=
1263 h->block_offset[48+32+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 8*s->uvlinesize*((scan8[i] - scan8[0])>>3);
1266 /* can't be in alloc_tables because linesize isn't known there.
1267 * FIXME: redo bipred weight to not require extra buffer? */
1268 for(i = 0; i < thread_count; i++)
1269 if(h->thread_context[i] && !h->thread_context[i]->s.obmc_scratchpad)
1270 h->thread_context[i]->s.obmc_scratchpad = av_malloc(16*6*s->linesize);
1272 /* some macroblocks can be accessed before they're available in case of lost slices, mbaff or threading*/
1273 memset(h->slice_table, -1, (s->mb_height*s->mb_stride-1) * sizeof(*h->slice_table));
1275 // s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1;
1277 // We mark the current picture as non-reference after allocating it, so
1278 // that if we break out due to an error it can be released automatically
1279 // in the next MPV_frame_start().
1280 // SVQ3 as well as most other codecs have only last/next/current and thus
1281 // get released even with set reference, besides SVQ3 and others do not
1282 // mark frames as reference later "naturally".
1283 if(s->codec_id != CODEC_ID_SVQ3)
1284 s->current_picture_ptr->reference= 0;
1286 s->current_picture_ptr->field_poc[0]=
1287 s->current_picture_ptr->field_poc[1]= INT_MAX;
1289 h->next_output_pic = NULL;
1291 assert(s->current_picture_ptr->long_ref==0);
1297 * Run setup operations that must be run after slice header decoding.
1298 * This includes finding the next displayed frame.
1300 * @param h h264 master context
1301 * @param setup_finished enough NALs have been read that we can call
1302 * ff_thread_finish_setup()
1304 static void decode_postinit(H264Context *h, int setup_finished){
1305 MpegEncContext * const s = &h->s;
1306 Picture *out = s->current_picture_ptr;
1307 Picture *cur = s->current_picture_ptr;
1308 int i, pics, out_of_order, out_idx;
1310 s->current_picture_ptr->qscale_type= FF_QSCALE_TYPE_H264;
1311 s->current_picture_ptr->pict_type= s->pict_type;
1313 if (h->next_output_pic) return;
1315 if (cur->field_poc[0]==INT_MAX || cur->field_poc[1]==INT_MAX) {
1316 //FIXME: if we have two PAFF fields in one packet, we can't start the next thread here.
1317 //If we have one field per packet, we can. The check in decode_nal_units() is not good enough
1318 //to find this yet, so we assume the worst for now.
1319 //if (setup_finished)
1320 // ff_thread_finish_setup(s->avctx);
1324 cur->interlaced_frame = 0;
1325 cur->repeat_pict = 0;
1327 /* Signal interlacing information externally. */
1328 /* Prioritize picture timing SEI information over used decoding process if it exists. */
1330 if(h->sps.pic_struct_present_flag){
1331 switch (h->sei_pic_struct)
1333 case SEI_PIC_STRUCT_FRAME:
1335 case SEI_PIC_STRUCT_TOP_FIELD:
1336 case SEI_PIC_STRUCT_BOTTOM_FIELD:
1337 cur->interlaced_frame = 1;
1339 case SEI_PIC_STRUCT_TOP_BOTTOM:
1340 case SEI_PIC_STRUCT_BOTTOM_TOP:
1341 if (FIELD_OR_MBAFF_PICTURE)
1342 cur->interlaced_frame = 1;
1344 // try to flag soft telecine progressive
1345 cur->interlaced_frame = h->prev_interlaced_frame;
1347 case SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1348 case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1349 // Signal the possibility of telecined film externally (pic_struct 5,6)
1350 // From these hints, let the applications decide if they apply deinterlacing.
1351 cur->repeat_pict = 1;
1353 case SEI_PIC_STRUCT_FRAME_DOUBLING:
1354 // Force progressive here, as doubling interlaced frame is a bad idea.
1355 cur->repeat_pict = 2;
1357 case SEI_PIC_STRUCT_FRAME_TRIPLING:
1358 cur->repeat_pict = 4;
1362 if ((h->sei_ct_type & 3) && h->sei_pic_struct <= SEI_PIC_STRUCT_BOTTOM_TOP)
1363 cur->interlaced_frame = (h->sei_ct_type & (1<<1)) != 0;
1365 /* Derive interlacing flag from used decoding process. */
1366 cur->interlaced_frame = FIELD_OR_MBAFF_PICTURE;
1368 h->prev_interlaced_frame = cur->interlaced_frame;
1370 if (cur->field_poc[0] != cur->field_poc[1]){
1371 /* Derive top_field_first from field pocs. */
1372 cur->top_field_first = cur->field_poc[0] < cur->field_poc[1];
1374 if(cur->interlaced_frame || h->sps.pic_struct_present_flag){
1375 /* Use picture timing SEI information. Even if it is a information of a past frame, better than nothing. */
1376 if(h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM
1377 || h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1378 cur->top_field_first = 1;
1380 cur->top_field_first = 0;
1382 /* Most likely progressive */
1383 cur->top_field_first = 0;
1387 //FIXME do something with unavailable reference frames
1389 /* Sort B-frames into display order */
1391 if(h->sps.bitstream_restriction_flag
1392 && s->avctx->has_b_frames < h->sps.num_reorder_frames){
1393 s->avctx->has_b_frames = h->sps.num_reorder_frames;
1397 if( s->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT
1398 && !h->sps.bitstream_restriction_flag){
1399 s->avctx->has_b_frames= MAX_DELAYED_PIC_COUNT;
1404 while(h->delayed_pic[pics]) pics++;
1406 assert(pics <= MAX_DELAYED_PIC_COUNT);
1408 h->delayed_pic[pics++] = cur;
1409 if(cur->reference == 0)
1410 cur->reference = DELAYED_PIC_REF;
1412 out = h->delayed_pic[0];
1414 for(i=1; h->delayed_pic[i] && !h->delayed_pic[i]->key_frame && !h->delayed_pic[i]->mmco_reset; i++)
1415 if(h->delayed_pic[i]->poc < out->poc){
1416 out = h->delayed_pic[i];
1419 if(s->avctx->has_b_frames == 0 && (h->delayed_pic[0]->key_frame || h->delayed_pic[0]->mmco_reset))
1420 h->next_outputed_poc= INT_MIN;
1421 out_of_order = out->poc < h->next_outputed_poc;
1423 if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames >= h->sps.num_reorder_frames)
1425 else if((out_of_order && pics-1 == s->avctx->has_b_frames && s->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT)
1427 ((h->next_outputed_poc != INT_MIN && out->poc > h->next_outputed_poc + 2)
1428 || cur->pict_type == AV_PICTURE_TYPE_B)))
1431 s->avctx->has_b_frames++;
1434 if(out_of_order || pics > s->avctx->has_b_frames){
1435 out->reference &= ~DELAYED_PIC_REF;
1436 out->owner2 = s; // for frame threading, the owner must be the second field's thread
1437 // or else the first thread can release the picture and reuse it unsafely
1438 for(i=out_idx; h->delayed_pic[i]; i++)
1439 h->delayed_pic[i] = h->delayed_pic[i+1];
1441 if(!out_of_order && pics > s->avctx->has_b_frames){
1442 h->next_output_pic = out;
1443 if(out_idx==0 && h->delayed_pic[0] && (h->delayed_pic[0]->key_frame || h->delayed_pic[0]->mmco_reset)) {
1444 h->next_outputed_poc = INT_MIN;
1446 h->next_outputed_poc = out->poc;
1448 av_log(s->avctx, AV_LOG_DEBUG, "no picture\n");
1452 ff_thread_finish_setup(s->avctx);
1455 static inline void backup_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int chroma444, int simple){
1456 MpegEncContext * const s = &h->s;
1457 uint8_t *top_border;
1459 const int pixel_shift = h->pixel_shift;
1462 src_cb -= uvlinesize;
1463 src_cr -= uvlinesize;
1465 if(!simple && FRAME_MBAFF){
1468 top_border = h->top_borders[0][s->mb_x];
1469 AV_COPY128(top_border, src_y + 15*linesize);
1471 AV_COPY128(top_border+16, src_y+15*linesize+16);
1472 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1475 AV_COPY128(top_border+32, src_cb + 15*uvlinesize);
1476 AV_COPY128(top_border+48, src_cb + 15*uvlinesize+16);
1477 AV_COPY128(top_border+64, src_cr + 15*uvlinesize);
1478 AV_COPY128(top_border+80, src_cr + 15*uvlinesize+16);
1480 AV_COPY128(top_border+16, src_cb + 15*uvlinesize);
1481 AV_COPY128(top_border+32, src_cr + 15*uvlinesize);
1485 AV_COPY128(top_border+32, src_cb+7*uvlinesize);
1486 AV_COPY128(top_border+48, src_cr+7*uvlinesize);
1488 AV_COPY64(top_border+16, src_cb+7*uvlinesize);
1489 AV_COPY64(top_border+24, src_cr+7*uvlinesize);
1500 top_border = h->top_borders[top_idx][s->mb_x];
1501 // There are two lines saved, the line above the the top macroblock of a pair,
1502 // and the line above the bottom macroblock
1503 AV_COPY128(top_border, src_y + 16*linesize);
1505 AV_COPY128(top_border+16, src_y+16*linesize+16);
1507 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1510 AV_COPY128(top_border+32, src_cb + 16*linesize);
1511 AV_COPY128(top_border+48, src_cb + 16*linesize+16);
1512 AV_COPY128(top_border+64, src_cr + 16*linesize);
1513 AV_COPY128(top_border+80, src_cr + 16*linesize+16);
1515 AV_COPY128(top_border+16, src_cb + 16*linesize);
1516 AV_COPY128(top_border+32, src_cr + 16*linesize);
1520 AV_COPY128(top_border+32, src_cb+8*uvlinesize);
1521 AV_COPY128(top_border+48, src_cr+8*uvlinesize);
1523 AV_COPY64(top_border+16, src_cb+8*uvlinesize);
1524 AV_COPY64(top_border+24, src_cr+8*uvlinesize);
1530 static inline void xchg_mb_border(H264Context *h, uint8_t *src_y,
1531 uint8_t *src_cb, uint8_t *src_cr,
1532 int linesize, int uvlinesize,
1533 int xchg, int chroma444,
1534 int simple, int pixel_shift){
1535 MpegEncContext * const s = &h->s;
1536 int deblock_topleft;
1539 uint8_t *top_border_m1;
1540 uint8_t *top_border;
1542 if(!simple && FRAME_MBAFF){
1547 top_idx = MB_MBAFF ? 0 : 1;
1551 if(h->deblocking_filter == 2) {
1552 deblock_topleft = h->slice_table[h->mb_xy - 1 - s->mb_stride] == h->slice_num;
1553 deblock_top = h->top_type;
1555 deblock_topleft = (s->mb_x > 0);
1556 deblock_top = (s->mb_y > !!MB_FIELD);
1559 src_y -= linesize + 1 + pixel_shift;
1560 src_cb -= uvlinesize + 1 + pixel_shift;
1561 src_cr -= uvlinesize + 1 + pixel_shift;
1563 top_border_m1 = h->top_borders[top_idx][s->mb_x-1];
1564 top_border = h->top_borders[top_idx][s->mb_x];
1566 #define XCHG(a,b,xchg)\
1569 AV_SWAP64(b+0,a+0);\
1570 AV_SWAP64(b+8,a+8);\
1575 if (xchg) AV_SWAP64(b,a);\
1576 else AV_COPY64(b,a);
1579 if(deblock_topleft){
1580 XCHG(top_border_m1 + (8 << pixel_shift), src_y - (7 << pixel_shift), 1);
1582 XCHG(top_border + (0 << pixel_shift), src_y + (1 << pixel_shift), xchg);
1583 XCHG(top_border + (8 << pixel_shift), src_y + (9 << pixel_shift), 1);
1584 if(s->mb_x+1 < s->mb_width){
1585 XCHG(h->top_borders[top_idx][s->mb_x+1], src_y + (17 << pixel_shift), 1);
1588 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1590 if(deblock_topleft){
1591 XCHG(top_border_m1 + (24 << pixel_shift), src_cb - (7 << pixel_shift), 1);
1592 XCHG(top_border_m1 + (40 << pixel_shift), src_cr - (7 << pixel_shift), 1);
1594 XCHG(top_border + (16 << pixel_shift), src_cb + (1 << pixel_shift), xchg);
1595 XCHG(top_border + (24 << pixel_shift), src_cb + (9 << pixel_shift), 1);
1596 XCHG(top_border + (32 << pixel_shift), src_cr + (1 << pixel_shift), xchg);
1597 XCHG(top_border + (40 << pixel_shift), src_cr + (9 << pixel_shift), 1);
1598 if(s->mb_x+1 < s->mb_width){
1599 XCHG(h->top_borders[top_idx][s->mb_x+1] + (16 << pixel_shift), src_cb + (17 << pixel_shift), 1);
1600 XCHG(h->top_borders[top_idx][s->mb_x+1] + (32 << pixel_shift), src_cr + (17 << pixel_shift), 1);
1604 if(deblock_topleft){
1605 XCHG(top_border_m1 + (16 << pixel_shift), src_cb - (7 << pixel_shift), 1);
1606 XCHG(top_border_m1 + (24 << pixel_shift), src_cr - (7 << pixel_shift), 1);
1608 XCHG(top_border + (16 << pixel_shift), src_cb+1+pixel_shift, 1);
1609 XCHG(top_border + (24 << pixel_shift), src_cr+1+pixel_shift, 1);
1615 static av_always_inline int dctcoef_get(DCTELEM *mb, int high_bit_depth, int index) {
1616 if (high_bit_depth) {
1617 return AV_RN32A(((int32_t*)mb) + index);
1619 return AV_RN16A(mb + index);
1622 static av_always_inline void dctcoef_set(DCTELEM *mb, int high_bit_depth, int index, int value) {
1623 if (high_bit_depth) {
1624 AV_WN32A(((int32_t*)mb) + index, value);
1626 AV_WN16A(mb + index, value);
1629 static av_always_inline void hl_decode_mb_predict_luma(H264Context *h, int mb_type, int is_h264, int simple, int transform_bypass,
1630 int pixel_shift, int *block_offset, int linesize, uint8_t *dest_y, int p)
1632 MpegEncContext * const s = &h->s;
1633 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1634 void (*idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
1636 int qscale = p == 0 ? s->qscale : h->chroma_qp[p-1];
1637 block_offset += 16*p;
1638 if(IS_INTRA4x4(mb_type)){
1639 if(simple || !s->encoding){
1640 if(IS_8x8DCT(mb_type)){
1641 if(transform_bypass){
1643 idct_add = s->dsp.add_pixels8;
1645 idct_dc_add = h->h264dsp.h264_idct8_dc_add;
1646 idct_add = h->h264dsp.h264_idct8_add;
1648 for(i=0; i<16; i+=4){
1649 uint8_t * const ptr= dest_y + block_offset[i];
1650 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
1651 if(transform_bypass && h->sps.profile_idc==244 && dir<=1){
1652 h->hpc.pred8x8l_add[dir](ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1654 const int nnz = h->non_zero_count_cache[ scan8[i+p*16] ];
1655 h->hpc.pred8x8l[ dir ](ptr, (h->topleft_samples_available<<i)&0x8000,
1656 (h->topright_samples_available<<i)&0x4000, linesize);
1658 if(nnz == 1 && dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1659 idct_dc_add(ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1661 idct_add (ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1666 if(transform_bypass){
1668 idct_add = s->dsp.add_pixels4;
1670 idct_dc_add = h->h264dsp.h264_idct_dc_add;
1671 idct_add = h->h264dsp.h264_idct_add;
1673 for(i=0; i<16; i++){
1674 uint8_t * const ptr= dest_y + block_offset[i];
1675 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
1677 if(transform_bypass && h->sps.profile_idc==244 && dir<=1){
1678 h->hpc.pred4x4_add[dir](ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1683 if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
1684 const int topright_avail= (h->topright_samples_available<<i)&0x8000;
1685 assert(mb_y || linesize <= block_offset[i]);
1686 if(!topright_avail){
1688 tr_high= ((uint16_t*)ptr)[3 - linesize/2]*0x0001000100010001ULL;
1689 topright= (uint8_t*) &tr_high;
1691 tr= ptr[3 - linesize]*0x01010101;
1692 topright= (uint8_t*) &tr;
1695 topright= ptr + (4 << pixel_shift) - linesize;
1699 h->hpc.pred4x4[ dir ](ptr, topright, linesize);
1700 nnz = h->non_zero_count_cache[ scan8[i+p*16] ];
1703 if(nnz == 1 && dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1704 idct_dc_add(ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1706 idct_add (ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1708 ff_svq3_add_idct_c(ptr, h->mb + i*16+p*256, linesize, qscale, 0);
1715 h->hpc.pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);
1717 if(h->non_zero_count_cache[ scan8[LUMA_DC_BLOCK_INDEX+p] ]){
1718 if(!transform_bypass)
1719 h->h264dsp.h264_luma_dc_dequant_idct(h->mb+(p*256 << pixel_shift), h->mb_luma_dc[p], h->dequant4_coeff[p][qscale][0]);
1721 static const uint8_t dc_mapping[16] = { 0*16, 1*16, 4*16, 5*16, 2*16, 3*16, 6*16, 7*16,
1722 8*16, 9*16,12*16,13*16,10*16,11*16,14*16,15*16};
1723 for(i = 0; i < 16; i++)
1724 dctcoef_set(h->mb+p*256, pixel_shift, dc_mapping[i], dctcoef_get(h->mb_luma_dc[p], pixel_shift, i));
1728 ff_svq3_luma_dc_dequant_idct_c(h->mb+p*256, h->mb_luma_dc[p], qscale);
1732 static av_always_inline void hl_decode_mb_idct_luma(H264Context *h, int mb_type, int is_h264, int simple, int transform_bypass,
1733 int pixel_shift, int *block_offset, int linesize, uint8_t *dest_y, int p)
1735 MpegEncContext * const s = &h->s;
1736 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1738 block_offset += 16*p;
1739 if(!IS_INTRA4x4(mb_type)){
1741 if(IS_INTRA16x16(mb_type)){
1742 if(transform_bypass){
1743 if(h->sps.profile_idc==244 && (h->intra16x16_pred_mode==VERT_PRED8x8 || h->intra16x16_pred_mode==HOR_PRED8x8)){
1744 h->hpc.pred16x16_add[h->intra16x16_pred_mode](dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize);
1746 for(i=0; i<16; i++){
1747 if(h->non_zero_count_cache[ scan8[i+p*16] ] || dctcoef_get(h->mb, pixel_shift, i*16))
1748 s->dsp.add_pixels4(dest_y + block_offset[i], h->mb + (i*16+p*256 << pixel_shift), linesize);
1752 h->h264dsp.h264_idct_add16intra(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1754 }else if(h->cbp&15){
1755 if(transform_bypass){
1756 const int di = IS_8x8DCT(mb_type) ? 4 : 1;
1757 idct_add= IS_8x8DCT(mb_type) ? s->dsp.add_pixels8 : s->dsp.add_pixels4;
1758 for(i=0; i<16; i+=di){
1759 if(h->non_zero_count_cache[ scan8[i+p*16] ]){
1760 idct_add(dest_y + block_offset[i], h->mb + (i*16+p*256 << pixel_shift), linesize);
1764 if(IS_8x8DCT(mb_type)){
1765 h->h264dsp.h264_idct8_add4(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1767 h->h264dsp.h264_idct_add16(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1772 for(i=0; i<16; i++){
1773 if(h->non_zero_count_cache[ scan8[i+p*16] ] || h->mb[i*16+p*256]){ //FIXME benchmark weird rule, & below
1774 uint8_t * const ptr= dest_y + block_offset[i];
1775 ff_svq3_add_idct_c(ptr, h->mb + i*16 + p*256, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0);
1782 static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple, int pixel_shift){
1783 MpegEncContext * const s = &h->s;
1784 const int mb_x= s->mb_x;
1785 const int mb_y= s->mb_y;
1786 const int mb_xy= h->mb_xy;
1787 const int mb_type= s->current_picture.mb_type[mb_xy];
1788 uint8_t *dest_y, *dest_cb, *dest_cr;
1789 int linesize, uvlinesize /*dct_offset*/;
1791 int *block_offset = &h->block_offset[0];
1792 const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass);
1793 /* is_h264 should always be true if SVQ3 is disabled. */
1794 const int is_h264 = !CONFIG_SVQ3_DECODER || simple || s->codec_id == CODEC_ID_H264;
1795 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1797 dest_y = s->current_picture.data[0] + ((mb_x << pixel_shift) + mb_y * s->linesize ) * 16;
1798 dest_cb = s->current_picture.data[1] + ((mb_x << pixel_shift) + mb_y * s->uvlinesize) * 8;
1799 dest_cr = s->current_picture.data[2] + ((mb_x << pixel_shift) + mb_y * s->uvlinesize) * 8;
1801 s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + (64 << pixel_shift), s->linesize, 4);
1802 s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + (64 << pixel_shift), dest_cr - dest_cb, 2);
1804 h->list_counts[mb_xy]= h->list_count;
1806 if (!simple && MB_FIELD) {
1807 linesize = h->mb_linesize = s->linesize * 2;
1808 uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
1809 block_offset = &h->block_offset[48];
1810 if(mb_y&1){ //FIXME move out of this function?
1811 dest_y -= s->linesize*15;
1812 dest_cb-= s->uvlinesize*7;
1813 dest_cr-= s->uvlinesize*7;
1817 for(list=0; list<h->list_count; list++){
1818 if(!USES_LIST(mb_type, list))
1820 if(IS_16X16(mb_type)){
1821 int8_t *ref = &h->ref_cache[list][scan8[0]];
1822 fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);
1824 for(i=0; i<16; i+=4){
1825 int ref = h->ref_cache[list][scan8[i]];
1827 fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);
1833 linesize = h->mb_linesize = s->linesize;
1834 uvlinesize = h->mb_uvlinesize = s->uvlinesize;
1835 // dct_offset = s->linesize * 16;
1838 if (!simple && IS_INTRA_PCM(mb_type)) {
1840 const int bit_depth = h->sps.bit_depth_luma;
1843 init_get_bits(&gb, (uint8_t*)h->mb, 384*bit_depth);
1845 for (i = 0; i < 16; i++) {
1846 uint16_t *tmp_y = (uint16_t*)(dest_y + i*linesize);
1847 for (j = 0; j < 16; j++)
1848 tmp_y[j] = get_bits(&gb, bit_depth);
1850 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1851 for (i = 0; i < 8; i++) {
1852 uint16_t *tmp_cb = (uint16_t*)(dest_cb + i*uvlinesize);
1853 for (j = 0; j < 8; j++)
1854 tmp_cb[j] = get_bits(&gb, bit_depth);
1856 for (i = 0; i < 8; i++) {
1857 uint16_t *tmp_cr = (uint16_t*)(dest_cr + i*uvlinesize);
1858 for (j = 0; j < 8; j++)
1859 tmp_cr[j] = get_bits(&gb, bit_depth);
1863 for (i=0; i<16; i++) {
1864 memcpy(dest_y + i* linesize, h->mb + i*8, 16);
1866 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1867 for (i=0; i<8; i++) {
1868 memcpy(dest_cb+ i*uvlinesize, h->mb + 128 + i*4, 8);
1869 memcpy(dest_cr+ i*uvlinesize, h->mb + 160 + i*4, 8);
1874 if(IS_INTRA(mb_type)){
1875 if(h->deblocking_filter)
1876 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, 0, simple, pixel_shift);
1878 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1879 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
1880 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
1883 hl_decode_mb_predict_luma(h, mb_type, is_h264, simple, transform_bypass, pixel_shift, block_offset, linesize, dest_y, 0);
1885 if(h->deblocking_filter)
1886 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, 0, simple, pixel_shift);
1889 hl_motion_16(h, dest_y, dest_cb, dest_cr,
1890 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
1891 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
1892 h->h264dsp.weight_h264_pixels_tab,
1893 h->h264dsp.biweight_h264_pixels_tab, 0);
1895 hl_motion_8(h, dest_y, dest_cb, dest_cr,
1896 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
1897 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
1898 h->h264dsp.weight_h264_pixels_tab,
1899 h->h264dsp.biweight_h264_pixels_tab, 0);
1902 hl_decode_mb_idct_luma(h, mb_type, is_h264, simple, transform_bypass, pixel_shift, block_offset, linesize, dest_y, 0);
1904 if((simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) && (h->cbp&0x30)){
1905 uint8_t *dest[2] = {dest_cb, dest_cr};
1906 if(transform_bypass){
1907 if(IS_INTRA(mb_type) && h->sps.profile_idc==244 && (h->chroma_pred_mode==VERT_PRED8x8 || h->chroma_pred_mode==HOR_PRED8x8)){
1908 h->hpc.pred8x8_add[h->chroma_pred_mode](dest[0], block_offset + 16, h->mb + (16*16*1 << pixel_shift), uvlinesize);
1909 h->hpc.pred8x8_add[h->chroma_pred_mode](dest[1], block_offset + 32, h->mb + (16*16*2 << pixel_shift), uvlinesize);
1911 idct_add = s->dsp.add_pixels4;
1913 for(i=j*16; i<j*16+4; i++){
1914 if(h->non_zero_count_cache[ scan8[i] ] || dctcoef_get(h->mb, pixel_shift, i*16))
1915 idct_add (dest[j-1] + block_offset[i], h->mb + (i*16 << pixel_shift), uvlinesize);
1921 if(h->non_zero_count_cache[ scan8[CHROMA_DC_BLOCK_INDEX+0] ])
1922 h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16*16*1 << pixel_shift), h->dequant4_coeff[IS_INTRA(mb_type) ? 1:4][h->chroma_qp[0]][0]);
1923 if(h->non_zero_count_cache[ scan8[CHROMA_DC_BLOCK_INDEX+1] ])
1924 h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16*16*2 << pixel_shift), h->dequant4_coeff[IS_INTRA(mb_type) ? 2:5][h->chroma_qp[1]][0]);
1925 h->h264dsp.h264_idct_add8(dest, block_offset,
1927 h->non_zero_count_cache);
1929 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]);
1930 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]);
1932 for(i=j*16; i<j*16+4; i++){
1933 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
1934 uint8_t * const ptr= dest[j-1] + block_offset[i];
1935 ff_svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, ff_h264_chroma_qp[0][s->qscale + 12] - 12, 2);
1943 if(h->cbp || IS_INTRA(mb_type))
1945 s->dsp.clear_blocks(h->mb);
1946 s->dsp.clear_blocks(h->mb+(24*16<<pixel_shift));
1950 static av_always_inline void hl_decode_mb_444_internal(H264Context *h, int simple, int pixel_shift){
1951 MpegEncContext * const s = &h->s;
1952 const int mb_x= s->mb_x;
1953 const int mb_y= s->mb_y;
1954 const int mb_xy= h->mb_xy;
1955 const int mb_type= s->current_picture.mb_type[mb_xy];
1959 int *block_offset = &h->block_offset[0];
1960 const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass);
1961 const int plane_count = (simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) ? 3 : 1;
1963 for (p = 0; p < plane_count; p++)
1965 dest[p] = s->current_picture.data[p] + ((mb_x << pixel_shift) + mb_y * s->linesize) * 16;
1966 s->dsp.prefetch(dest[p] + (s->mb_x&3)*4*s->linesize + (64 << pixel_shift), s->linesize, 4);
1969 h->list_counts[mb_xy]= h->list_count;
1971 if (!simple && MB_FIELD) {
1972 linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize * 2;
1973 block_offset = &h->block_offset[48];
1974 if(mb_y&1) //FIXME move out of this function?
1975 for (p = 0; p < 3; p++)
1976 dest[p] -= s->linesize*15;
1979 for(list=0; list<h->list_count; list++){
1980 if(!USES_LIST(mb_type, list))
1982 if(IS_16X16(mb_type)){
1983 int8_t *ref = &h->ref_cache[list][scan8[0]];
1984 fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);
1986 for(i=0; i<16; i+=4){
1987 int ref = h->ref_cache[list][scan8[i]];
1989 fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);
1995 linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize;
1998 if (!simple && IS_INTRA_PCM(mb_type)) {
2000 const int bit_depth = h->sps.bit_depth_luma;
2002 init_get_bits(&gb, (uint8_t*)h->mb, 768*bit_depth);
2004 for (p = 0; p < plane_count; p++) {
2005 for (i = 0; i < 16; i++) {
2006 uint16_t *tmp = (uint16_t*)(dest[p] + i*linesize);
2007 for (j = 0; j < 16; j++)
2008 tmp[j] = get_bits(&gb, bit_depth);
2012 for (p = 0; p < plane_count; p++) {
2013 for (i = 0; i < 16; i++) {
2014 memcpy(dest[p] + i*linesize, h->mb + p*128 + i*8, 16);
2019 if(IS_INTRA(mb_type)){
2020 if(h->deblocking_filter)
2021 xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, linesize, 1, 1, simple, pixel_shift);
2023 for (p = 0; p < plane_count; p++)
2024 hl_decode_mb_predict_luma(h, mb_type, 1, simple, transform_bypass, pixel_shift, block_offset, linesize, dest[p], p);
2026 if(h->deblocking_filter)
2027 xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, linesize, 0, 1, simple, pixel_shift);
2030 hl_motion_16(h, dest[0], dest[1], dest[2],
2031 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
2032 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
2033 h->h264dsp.weight_h264_pixels_tab,
2034 h->h264dsp.biweight_h264_pixels_tab, 1);
2036 hl_motion_8(h, dest[0], dest[1], dest[2],
2037 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
2038 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
2039 h->h264dsp.weight_h264_pixels_tab,
2040 h->h264dsp.biweight_h264_pixels_tab, 1);
2043 for (p = 0; p < plane_count; p++)
2044 hl_decode_mb_idct_luma(h, mb_type, 1, simple, transform_bypass, pixel_shift, block_offset, linesize, dest[p], p);
2046 if(h->cbp || IS_INTRA(mb_type))
2048 s->dsp.clear_blocks(h->mb);
2049 s->dsp.clear_blocks(h->mb+(24*16<<pixel_shift));
2054 * Process a macroblock; this case avoids checks for expensive uncommon cases.
2056 #define hl_decode_mb_simple(sh, bits) \
2057 static void hl_decode_mb_simple_ ## bits(H264Context *h){ \
2058 hl_decode_mb_internal(h, 1, sh); \
2060 hl_decode_mb_simple(0, 8);
2061 hl_decode_mb_simple(1, 16);
2064 * Process a macroblock; this handles edge cases, such as interlacing.
2066 static void av_noinline hl_decode_mb_complex(H264Context *h){
2067 hl_decode_mb_internal(h, 0, h->pixel_shift);
2070 static void av_noinline hl_decode_mb_444_complex(H264Context *h){
2071 hl_decode_mb_444_internal(h, 0, h->pixel_shift);
2074 static void av_noinline hl_decode_mb_444_simple(H264Context *h){
2075 hl_decode_mb_444_internal(h, 1, 0);
2078 void ff_h264_hl_decode_mb(H264Context *h){
2079 MpegEncContext * const s = &h->s;
2080 const int mb_xy= h->mb_xy;
2081 const int mb_type= s->current_picture.mb_type[mb_xy];
2082 int is_complex = CONFIG_SMALL || h->is_complex || IS_INTRA_PCM(mb_type) || s->qscale == 0;
2085 if(is_complex || h->pixel_shift)
2086 hl_decode_mb_444_complex(h);
2088 hl_decode_mb_444_simple(h);
2089 } else if (is_complex) {
2090 hl_decode_mb_complex(h);
2091 } else if (h->pixel_shift) {
2092 hl_decode_mb_simple_16(h);
2094 hl_decode_mb_simple_8(h);
2097 static int pred_weight_table(H264Context *h){
2098 MpegEncContext * const s = &h->s;
2100 int luma_def, chroma_def;
2103 h->use_weight_chroma= 0;
2104 h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
2105 if(h->sps.chroma_format_idc)
2106 h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
2107 luma_def = 1<<h->luma_log2_weight_denom;
2108 chroma_def = 1<<h->chroma_log2_weight_denom;
2110 for(list=0; list<2; list++){
2111 h->luma_weight_flag[list] = 0;
2112 h->chroma_weight_flag[list] = 0;
2113 for(i=0; i<h->ref_count[list]; i++){
2114 int luma_weight_flag, chroma_weight_flag;
2116 luma_weight_flag= get_bits1(&s->gb);
2117 if(luma_weight_flag){
2118 h->luma_weight[i][list][0]= get_se_golomb(&s->gb);
2119 h->luma_weight[i][list][1]= get_se_golomb(&s->gb);
2120 if( h->luma_weight[i][list][0] != luma_def
2121 || h->luma_weight[i][list][1] != 0) {
2123 h->luma_weight_flag[list]= 1;
2126 h->luma_weight[i][list][0]= luma_def;
2127 h->luma_weight[i][list][1]= 0;
2130 if(h->sps.chroma_format_idc){
2131 chroma_weight_flag= get_bits1(&s->gb);
2132 if(chroma_weight_flag){
2135 h->chroma_weight[i][list][j][0]= get_se_golomb(&s->gb);
2136 h->chroma_weight[i][list][j][1]= get_se_golomb(&s->gb);
2137 if( h->chroma_weight[i][list][j][0] != chroma_def
2138 || h->chroma_weight[i][list][j][1] != 0) {
2139 h->use_weight_chroma= 1;
2140 h->chroma_weight_flag[list]= 1;
2146 h->chroma_weight[i][list][j][0]= chroma_def;
2147 h->chroma_weight[i][list][j][1]= 0;
2152 if(h->slice_type_nos != AV_PICTURE_TYPE_B) break;
2154 h->use_weight= h->use_weight || h->use_weight_chroma;
2159 * Initialize implicit_weight table.
2160 * @param field 0/1 initialize the weight for interlaced MBAFF
2161 * -1 initializes the rest
2163 static void implicit_weight_table(H264Context *h, int field){
2164 MpegEncContext * const s = &h->s;
2165 int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
2167 for (i = 0; i < 2; i++) {
2168 h->luma_weight_flag[i] = 0;
2169 h->chroma_weight_flag[i] = 0;
2173 cur_poc = s->current_picture_ptr->poc;
2174 if( h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF
2175 && h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){
2177 h->use_weight_chroma= 0;
2181 ref_count0= h->ref_count[0];
2182 ref_count1= h->ref_count[1];
2184 cur_poc = s->current_picture_ptr->field_poc[field];
2186 ref_count0= 16+2*h->ref_count[0];
2187 ref_count1= 16+2*h->ref_count[1];
2191 h->use_weight_chroma= 2;
2192 h->luma_log2_weight_denom= 5;
2193 h->chroma_log2_weight_denom= 5;
2195 for(ref0=ref_start; ref0 < ref_count0; ref0++){
2196 int poc0 = h->ref_list[0][ref0].poc;
2197 for(ref1=ref_start; ref1 < ref_count1; ref1++){
2198 int poc1 = h->ref_list[1][ref1].poc;
2199 int td = av_clip(poc1 - poc0, -128, 127);
2202 int tb = av_clip(cur_poc - poc0, -128, 127);
2203 int tx = (16384 + (FFABS(td) >> 1)) / td;
2204 int dist_scale_factor = (tb*tx + 32) >> 8;
2205 if(dist_scale_factor >= -64 && dist_scale_factor <= 128)
2206 w = 64 - dist_scale_factor;
2209 h->implicit_weight[ref0][ref1][0]=
2210 h->implicit_weight[ref0][ref1][1]= w;
2212 h->implicit_weight[ref0][ref1][field]=w;
2219 * instantaneous decoder refresh.
2221 static void idr(H264Context *h){
2222 ff_h264_remove_all_refs(h);
2223 h->prev_frame_num= 0;
2224 h->prev_frame_num_offset= 0;
2229 /* forget old pics after a seek */
2230 static void flush_dpb(AVCodecContext *avctx){
2231 H264Context *h= avctx->priv_data;
2233 for(i=0; i<MAX_DELAYED_PIC_COUNT; i++) {
2234 if(h->delayed_pic[i])
2235 h->delayed_pic[i]->reference= 0;
2236 h->delayed_pic[i]= NULL;
2238 h->outputed_poc=h->next_outputed_poc= INT_MIN;
2239 h->prev_interlaced_frame = 1;
2241 if(h->s.current_picture_ptr)
2242 h->s.current_picture_ptr->reference= 0;
2243 h->s.first_field= 0;
2244 ff_h264_reset_sei(h);
2245 ff_mpeg_flush(avctx);
2248 static int init_poc(H264Context *h){
2249 MpegEncContext * const s = &h->s;
2250 const int max_frame_num= 1<<h->sps.log2_max_frame_num;
2252 Picture *cur = s->current_picture_ptr;
2254 h->frame_num_offset= h->prev_frame_num_offset;
2255 if(h->frame_num < h->prev_frame_num)
2256 h->frame_num_offset += max_frame_num;
2258 if(h->sps.poc_type==0){
2259 const int max_poc_lsb= 1<<h->sps.log2_max_poc_lsb;
2261 if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2)
2262 h->poc_msb = h->prev_poc_msb + max_poc_lsb;
2263 else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2)
2264 h->poc_msb = h->prev_poc_msb - max_poc_lsb;
2266 h->poc_msb = h->prev_poc_msb;
2267 //printf("poc: %d %d\n", h->poc_msb, h->poc_lsb);
2269 field_poc[1] = h->poc_msb + h->poc_lsb;
2270 if(s->picture_structure == PICT_FRAME)
2271 field_poc[1] += h->delta_poc_bottom;
2272 }else if(h->sps.poc_type==1){
2273 int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
2276 if(h->sps.poc_cycle_length != 0)
2277 abs_frame_num = h->frame_num_offset + h->frame_num;
2281 if(h->nal_ref_idc==0 && abs_frame_num > 0)
2284 expected_delta_per_poc_cycle = 0;
2285 for(i=0; i < h->sps.poc_cycle_length; i++)
2286 expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse
2288 if(abs_frame_num > 0){
2289 int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length;
2290 int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;
2292 expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;
2293 for(i = 0; i <= frame_num_in_poc_cycle; i++)
2294 expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ];
2298 if(h->nal_ref_idc == 0)
2299 expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;
2301 field_poc[0] = expectedpoc + h->delta_poc[0];
2302 field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;
2304 if(s->picture_structure == PICT_FRAME)
2305 field_poc[1] += h->delta_poc[1];
2307 int poc= 2*(h->frame_num_offset + h->frame_num);
2316 if(s->picture_structure != PICT_BOTTOM_FIELD)
2317 s->current_picture_ptr->field_poc[0]= field_poc[0];
2318 if(s->picture_structure != PICT_TOP_FIELD)
2319 s->current_picture_ptr->field_poc[1]= field_poc[1];
2320 cur->poc= FFMIN(cur->field_poc[0], cur->field_poc[1]);
2327 * initialize scan tables
2329 static void init_scan_tables(H264Context *h){
2331 for(i=0; i<16; i++){
2332 #define T(x) (x>>2) | ((x<<2) & 0xF)
2333 h->zigzag_scan[i] = T(zigzag_scan[i]);
2334 h-> field_scan[i] = T( field_scan[i]);
2337 for(i=0; i<64; i++){
2338 #define T(x) (x>>3) | ((x&7)<<3)
2339 h->zigzag_scan8x8[i] = T(ff_zigzag_direct[i]);
2340 h->zigzag_scan8x8_cavlc[i] = T(zigzag_scan8x8_cavlc[i]);
2341 h->field_scan8x8[i] = T(field_scan8x8[i]);
2342 h->field_scan8x8_cavlc[i] = T(field_scan8x8_cavlc[i]);
2345 if(h->sps.transform_bypass){ //FIXME same ugly
2346 h->zigzag_scan_q0 = zigzag_scan;
2347 h->zigzag_scan8x8_q0 = ff_zigzag_direct;
2348 h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc;
2349 h->field_scan_q0 = field_scan;
2350 h->field_scan8x8_q0 = field_scan8x8;
2351 h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc;
2353 h->zigzag_scan_q0 = h->zigzag_scan;
2354 h->zigzag_scan8x8_q0 = h->zigzag_scan8x8;
2355 h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc;
2356 h->field_scan_q0 = h->field_scan;
2357 h->field_scan8x8_q0 = h->field_scan8x8;
2358 h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc;
2362 static void field_end(H264Context *h, int in_setup){
2363 MpegEncContext * const s = &h->s;
2364 AVCodecContext * const avctx= s->avctx;
2367 if (!in_setup && !s->dropable)
2368 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, (16*s->mb_height >> FIELD_PICTURE) - 1,
2369 s->picture_structure==PICT_BOTTOM_FIELD);
2371 if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
2372 ff_vdpau_h264_set_reference_frames(s);
2374 if(in_setup || !(avctx->active_thread_type&FF_THREAD_FRAME)){
2376 ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
2377 h->prev_poc_msb= h->poc_msb;
2378 h->prev_poc_lsb= h->poc_lsb;
2380 h->prev_frame_num_offset= h->frame_num_offset;
2381 h->prev_frame_num= h->frame_num;
2382 h->outputed_poc = h->next_outputed_poc;
2385 if (avctx->hwaccel) {
2386 if (avctx->hwaccel->end_frame(avctx) < 0)
2387 av_log(avctx, AV_LOG_ERROR, "hardware accelerator failed to decode picture\n");
2390 if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
2391 ff_vdpau_h264_picture_complete(s);
2394 * FIXME: Error handling code does not seem to support interlaced
2395 * when slices span multiple rows
2396 * The ff_er_add_slice calls don't work right for bottom
2397 * fields; they cause massive erroneous error concealing
2398 * Error marking covers both fields (top and bottom).
2399 * This causes a mismatched s->error_count
2400 * and a bad error table. Further, the error count goes to
2401 * INT_MAX when called for bottom field, because mb_y is
2402 * past end by one (callers fault) and resync_mb_y != 0
2403 * causes problems for the first MB line, too.
2414 * Replicate H264 "master" context to thread contexts.
2416 static void clone_slice(H264Context *dst, H264Context *src)
2418 memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
2419 dst->s.current_picture_ptr = src->s.current_picture_ptr;
2420 dst->s.current_picture = src->s.current_picture;
2421 dst->s.linesize = src->s.linesize;
2422 dst->s.uvlinesize = src->s.uvlinesize;
2423 dst->s.first_field = src->s.first_field;
2425 dst->prev_poc_msb = src->prev_poc_msb;
2426 dst->prev_poc_lsb = src->prev_poc_lsb;
2427 dst->prev_frame_num_offset = src->prev_frame_num_offset;
2428 dst->prev_frame_num = src->prev_frame_num;
2429 dst->short_ref_count = src->short_ref_count;
2431 memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
2432 memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
2433 memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
2434 memcpy(dst->ref_list, src->ref_list, sizeof(dst->ref_list));
2436 memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
2437 memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
2441 * computes profile from profile_idc and constraint_set?_flags
2445 * @return profile as defined by FF_PROFILE_H264_*
2447 int ff_h264_get_profile(SPS *sps)
2449 int profile = sps->profile_idc;
2451 switch(sps->profile_idc) {
2452 case FF_PROFILE_H264_BASELINE:
2453 // constraint_set1_flag set to 1
2454 profile |= (sps->constraint_set_flags & 1<<1) ? FF_PROFILE_H264_CONSTRAINED : 0;
2456 case FF_PROFILE_H264_HIGH_10:
2457 case FF_PROFILE_H264_HIGH_422:
2458 case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
2459 // constraint_set3_flag set to 1
2460 profile |= (sps->constraint_set_flags & 1<<3) ? FF_PROFILE_H264_INTRA : 0;
2468 * decodes a slice header.
2469 * This will also call MPV_common_init() and frame_start() as needed.
2471 * @param h h264context
2472 * @param h0 h264 master context (differs from 'h' when doing sliced based parallel decoding)
2474 * @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded
2476 static int decode_slice_header(H264Context *h, H264Context *h0){
2477 MpegEncContext * const s = &h->s;
2478 MpegEncContext * const s0 = &h0->s;
2479 unsigned int first_mb_in_slice;
2480 unsigned int pps_id;
2481 int num_ref_idx_active_override_flag;
2482 unsigned int slice_type, tmp, i, j;
2483 int default_ref_list_done = 0;
2484 int last_pic_structure;
2486 s->dropable= h->nal_ref_idc == 0;
2488 if((s->avctx->flags2 & CODEC_FLAG2_FAST) && !h->nal_ref_idc){
2489 s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab;
2490 s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab;
2492 s->me.qpel_put= s->dsp.put_h264_qpel_pixels_tab;
2493 s->me.qpel_avg= s->dsp.avg_h264_qpel_pixels_tab;
2496 first_mb_in_slice= get_ue_golomb(&s->gb);
2498 if(first_mb_in_slice == 0){ //FIXME better field boundary detection
2499 if(h0->current_slice && FIELD_PICTURE){
2503 h0->current_slice = 0;
2504 if (!s0->first_field)
2505 s->current_picture_ptr= NULL;
2508 slice_type= get_ue_golomb_31(&s->gb);
2510 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);
2515 h->slice_type_fixed=1;
2517 h->slice_type_fixed=0;
2519 slice_type= golomb_to_pict_type[ slice_type ];
2520 if (slice_type == AV_PICTURE_TYPE_I
2521 || (h0->current_slice != 0 && slice_type == h0->last_slice_type) ) {
2522 default_ref_list_done = 1;
2524 h->slice_type= slice_type;
2525 h->slice_type_nos= slice_type & 3;
2527 s->pict_type= h->slice_type; // to make a few old functions happy, it's wrong though
2529 pps_id= get_ue_golomb(&s->gb);
2530 if(pps_id>=MAX_PPS_COUNT){
2531 av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
2534 if(!h0->pps_buffers[pps_id]) {
2535 av_log(h->s.avctx, AV_LOG_ERROR, "non-existing PPS %u referenced\n", pps_id);
2538 h->pps= *h0->pps_buffers[pps_id];
2540 if(!h0->sps_buffers[h->pps.sps_id]) {
2541 av_log(h->s.avctx, AV_LOG_ERROR, "non-existing SPS %u referenced\n", h->pps.sps_id);
2544 h->sps = *h0->sps_buffers[h->pps.sps_id];
2546 s->avctx->profile = ff_h264_get_profile(&h->sps);
2547 s->avctx->level = h->sps.level_idc;
2548 s->avctx->refs = h->sps.ref_frame_count;
2550 if(h == h0 && h->dequant_coeff_pps != pps_id){
2551 h->dequant_coeff_pps = pps_id;
2552 init_dequant_tables(h);
2555 s->mb_width= h->sps.mb_width;
2556 s->mb_height= h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);
2558 h->b_stride= s->mb_width*4;
2560 s->width = 16*s->mb_width - (2>>CHROMA444)*FFMIN(h->sps.crop_right, (8<<CHROMA444)-1);
2561 if(h->sps.frame_mbs_only_flag)
2562 s->height= 16*s->mb_height - (2>>CHROMA444)*FFMIN(h->sps.crop_bottom, (8<<CHROMA444)-1);
2564 s->height= 16*s->mb_height - (4>>CHROMA444)*FFMIN(h->sps.crop_bottom, (8<<CHROMA444)-1);
2566 if (s->context_initialized
2567 && ( s->width != s->avctx->width || s->height != s->avctx->height
2568 || av_cmp_q(h->sps.sar, s->avctx->sample_aspect_ratio))) {
2570 av_log_missing_feature(s->avctx, "Width/height changing with threads is", 0);
2571 return -1; // width / height changed during parallelized decoding
2574 flush_dpb(s->avctx);
2577 if (!s->context_initialized) {
2579 av_log(h->s.avctx, AV_LOG_ERROR, "Cannot (re-)initialize context during parallel decoding.\n");
2583 avcodec_set_dimensions(s->avctx, s->width, s->height);
2584 s->avctx->sample_aspect_ratio= h->sps.sar;
2585 av_assert0(s->avctx->sample_aspect_ratio.den);
2587 h->s.avctx->coded_width = 16*s->mb_width;
2588 h->s.avctx->coded_height = 16*s->mb_height;
2590 if(h->sps.video_signal_type_present_flag){
2591 s->avctx->color_range = h->sps.full_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
2592 if(h->sps.colour_description_present_flag){
2593 s->avctx->color_primaries = h->sps.color_primaries;
2594 s->avctx->color_trc = h->sps.color_trc;
2595 s->avctx->colorspace = h->sps.colorspace;
2599 if(h->sps.timing_info_present_flag){
2600 int64_t den= h->sps.time_scale;
2601 if(h->x264_build < 44U)
2603 av_reduce(&s->avctx->time_base.num, &s->avctx->time_base.den,
2604 h->sps.num_units_in_tick, den, 1<<30);
2607 switch (h->sps.bit_depth_luma) {
2609 s->avctx->pix_fmt = CHROMA444 ? PIX_FMT_YUV444P9 : PIX_FMT_YUV420P9;
2612 s->avctx->pix_fmt = CHROMA444 ? PIX_FMT_YUV444P10 : PIX_FMT_YUV420P10;
2616 s->avctx->pix_fmt = s->avctx->color_range == AVCOL_RANGE_JPEG ? PIX_FMT_YUVJ444P : PIX_FMT_YUV444P;
2618 s->avctx->pix_fmt = s->avctx->get_format(s->avctx,
2619 s->avctx->codec->pix_fmts ?
2620 s->avctx->codec->pix_fmts :
2621 s->avctx->color_range == AVCOL_RANGE_JPEG ?
2622 hwaccel_pixfmt_list_h264_jpeg_420 :
2623 ff_hwaccel_pixfmt_list_420);
2627 s->avctx->hwaccel = ff_find_hwaccel(s->avctx->codec->id, s->avctx->pix_fmt);
2629 if (MPV_common_init(s) < 0) {
2630 av_log(h->s.avctx, AV_LOG_ERROR, "MPV_common_init() failed.\n");
2634 h->prev_interlaced_frame = 1;
2636 init_scan_tables(h);
2637 ff_h264_alloc_tables(h);
2639 if (!HAVE_THREADS || !(s->avctx->active_thread_type&FF_THREAD_SLICE)) {
2640 if (context_init(h) < 0) {
2641 av_log(h->s.avctx, AV_LOG_ERROR, "context_init() failed.\n");
2645 for(i = 1; i < s->avctx->thread_count; i++) {
2647 c = h->thread_context[i] = av_malloc(sizeof(H264Context));
2648 memcpy(c, h->s.thread_context[i], sizeof(MpegEncContext));
2649 memset(&c->s + 1, 0, sizeof(H264Context) - sizeof(MpegEncContext));
2650 c->h264dsp = h->h264dsp;
2653 c->pixel_shift = h->pixel_shift;
2654 init_scan_tables(c);
2655 clone_tables(c, h, i);
2658 for(i = 0; i < s->avctx->thread_count; i++)
2659 if (context_init(h->thread_context[i]) < 0) {
2660 av_log(h->s.avctx, AV_LOG_ERROR, "context_init() failed.\n");
2666 h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num);
2669 h->mb_aff_frame = 0;
2670 last_pic_structure = s0->picture_structure;
2671 if(h->sps.frame_mbs_only_flag){
2672 s->picture_structure= PICT_FRAME;
2674 if(get_bits1(&s->gb)) { //field_pic_flag
2675 s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag
2677 s->picture_structure= PICT_FRAME;
2678 h->mb_aff_frame = h->sps.mb_aff;
2681 h->mb_field_decoding_flag= s->picture_structure != PICT_FRAME;
2683 if(h0->current_slice == 0){
2684 if(h->frame_num != h->prev_frame_num &&
2685 (h->prev_frame_num+1)%(1<<h->sps.log2_max_frame_num) < (h->frame_num - h->sps.ref_frame_count))
2686 h->prev_frame_num = h->frame_num - h->sps.ref_frame_count - 1;
2688 while(h->frame_num != h->prev_frame_num &&
2689 h->frame_num != (h->prev_frame_num+1)%(1<<h->sps.log2_max_frame_num)){
2690 Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
2691 av_log(h->s.avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n", h->frame_num, h->prev_frame_num);
2692 if (ff_h264_frame_start(h) < 0)
2694 h->prev_frame_num++;
2695 h->prev_frame_num %= 1<<h->sps.log2_max_frame_num;
2696 s->current_picture_ptr->frame_num= h->prev_frame_num;
2697 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, INT_MAX, 0);
2698 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, INT_MAX, 1);
2699 ff_generate_sliding_window_mmcos(h);
2700 ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
2701 /* Error concealment: if a ref is missing, copy the previous ref in its place.
2702 * FIXME: avoiding a memcpy would be nice, but ref handling makes many assumptions
2703 * about there being no actual duplicates.
2704 * FIXME: this doesn't copy padding for out-of-frame motion vectors. Given we're
2705 * concealing a lost frame, this probably isn't noticable by comparison, but it should
2707 if (h->short_ref_count) {
2709 av_image_copy(h->short_ref[0]->data, h->short_ref[0]->linesize,
2710 (const uint8_t**)prev->data, prev->linesize,
2711 s->avctx->pix_fmt, s->mb_width*16, s->mb_height*16);
2712 h->short_ref[0]->poc = prev->poc+2;
2714 h->short_ref[0]->frame_num = h->prev_frame_num;
2718 /* See if we have a decoded first field looking for a pair... */
2719 if (s0->first_field) {
2720 assert(s0->current_picture_ptr);
2721 assert(s0->current_picture_ptr->data[0]);
2722 assert(s0->current_picture_ptr->reference != DELAYED_PIC_REF);
2724 /* figure out if we have a complementary field pair */
2725 if (!FIELD_PICTURE || s->picture_structure == last_pic_structure) {
2727 * Previous field is unmatched. Don't display it, but let it
2728 * remain for reference if marked as such.
2730 s0->current_picture_ptr = NULL;
2731 s0->first_field = FIELD_PICTURE;
2734 if (h->nal_ref_idc &&
2735 s0->current_picture_ptr->reference &&
2736 s0->current_picture_ptr->frame_num != h->frame_num) {
2738 * This and previous field were reference, but had
2739 * different frame_nums. Consider this field first in
2740 * pair. Throw away previous field except for reference
2743 s0->first_field = 1;
2744 s0->current_picture_ptr = NULL;
2747 /* Second field in complementary pair */
2748 s0->first_field = 0;
2753 /* Frame or first field in a potentially complementary pair */
2754 assert(!s0->current_picture_ptr);
2755 s0->first_field = FIELD_PICTURE;
2758 if(!FIELD_PICTURE || s0->first_field) {
2759 if (ff_h264_frame_start(h) < 0) {
2760 s0->first_field = 0;
2764 ff_release_unused_pictures(s, 0);
2770 s->current_picture_ptr->frame_num= h->frame_num; //FIXME frame_num cleanup
2772 assert(s->mb_num == s->mb_width * s->mb_height);
2773 if(first_mb_in_slice << FIELD_OR_MBAFF_PICTURE >= s->mb_num ||
2774 first_mb_in_slice >= s->mb_num){
2775 av_log(h->s.avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
2778 s->resync_mb_x = s->mb_x = first_mb_in_slice % s->mb_width;
2779 s->resync_mb_y = s->mb_y = (first_mb_in_slice / s->mb_width) << FIELD_OR_MBAFF_PICTURE;
2780 if (s->picture_structure == PICT_BOTTOM_FIELD)
2781 s->resync_mb_y = s->mb_y = s->mb_y + 1;
2782 assert(s->mb_y < s->mb_height);
2784 if(s->picture_structure==PICT_FRAME){
2785 h->curr_pic_num= h->frame_num;
2786 h->max_pic_num= 1<< h->sps.log2_max_frame_num;
2788 h->curr_pic_num= 2*h->frame_num + 1;
2789 h->max_pic_num= 1<<(h->sps.log2_max_frame_num + 1);
2792 if(h->nal_unit_type == NAL_IDR_SLICE){
2793 get_ue_golomb(&s->gb); /* idr_pic_id */
2796 if(h->sps.poc_type==0){
2797 h->poc_lsb= get_bits(&s->gb, h->sps.log2_max_poc_lsb);
2799 if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME){
2800 h->delta_poc_bottom= get_se_golomb(&s->gb);
2804 if(h->sps.poc_type==1 && !h->sps.delta_pic_order_always_zero_flag){
2805 h->delta_poc[0]= get_se_golomb(&s->gb);
2807 if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME)
2808 h->delta_poc[1]= get_se_golomb(&s->gb);
2813 if(h->pps.redundant_pic_cnt_present){
2814 h->redundant_pic_count= get_ue_golomb(&s->gb);
2817 //set defaults, might be overridden a few lines later
2818 h->ref_count[0]= h->pps.ref_count[0];
2819 h->ref_count[1]= h->pps.ref_count[1];
2821 if(h->slice_type_nos != AV_PICTURE_TYPE_I){
2822 if(h->slice_type_nos == AV_PICTURE_TYPE_B){
2823 h->direct_spatial_mv_pred= get_bits1(&s->gb);
2825 num_ref_idx_active_override_flag= get_bits1(&s->gb);
2827 if(num_ref_idx_active_override_flag){
2828 h->ref_count[0]= get_ue_golomb(&s->gb) + 1;
2829 if(h->slice_type_nos==AV_PICTURE_TYPE_B)
2830 h->ref_count[1]= get_ue_golomb(&s->gb) + 1;
2832 if(h->ref_count[0]-1 > 32-1 || h->ref_count[1]-1 > 32-1){
2833 av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
2834 h->ref_count[0]= h->ref_count[1]= 1;
2838 if(h->slice_type_nos == AV_PICTURE_TYPE_B)
2845 if(!default_ref_list_done){
2846 ff_h264_fill_default_ref_list(h);
2849 if(h->slice_type_nos!=AV_PICTURE_TYPE_I && ff_h264_decode_ref_pic_list_reordering(h) < 0)
2852 if(h->slice_type_nos!=AV_PICTURE_TYPE_I){
2853 s->last_picture_ptr= &h->ref_list[0][0];
2854 ff_copy_picture(&s->last_picture, s->last_picture_ptr);
2856 if(h->slice_type_nos==AV_PICTURE_TYPE_B){
2857 s->next_picture_ptr= &h->ref_list[1][0];
2858 ff_copy_picture(&s->next_picture, s->next_picture_ptr);
2861 if( (h->pps.weighted_pred && h->slice_type_nos == AV_PICTURE_TYPE_P )
2862 || (h->pps.weighted_bipred_idc==1 && h->slice_type_nos== AV_PICTURE_TYPE_B ) )
2863 pred_weight_table(h);
2864 else if(h->pps.weighted_bipred_idc==2 && h->slice_type_nos== AV_PICTURE_TYPE_B){
2865 implicit_weight_table(h, -1);
2868 for (i = 0; i < 2; i++) {
2869 h->luma_weight_flag[i] = 0;
2870 h->chroma_weight_flag[i] = 0;
2875 ff_h264_decode_ref_pic_marking(h0, &s->gb);
2878 ff_h264_fill_mbaff_ref_list(h);
2880 if(h->pps.weighted_bipred_idc==2 && h->slice_type_nos== AV_PICTURE_TYPE_B){
2881 implicit_weight_table(h, 0);
2882 implicit_weight_table(h, 1);
2886 if(h->slice_type_nos==AV_PICTURE_TYPE_B && !h->direct_spatial_mv_pred)
2887 ff_h264_direct_dist_scale_factor(h);
2888 ff_h264_direct_ref_list_init(h);
2890 if( h->slice_type_nos != AV_PICTURE_TYPE_I && h->pps.cabac ){
2891 tmp = get_ue_golomb_31(&s->gb);
2893 av_log(s->avctx, AV_LOG_ERROR, "cabac_init_idc overflow\n");
2896 h->cabac_init_idc= tmp;
2899 h->last_qscale_diff = 0;
2900 tmp = h->pps.init_qp + get_se_golomb(&s->gb);
2901 if(tmp>51+6*(h->sps.bit_depth_luma-8)){
2902 av_log(s->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
2906 h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
2907 h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
2908 //FIXME qscale / qp ... stuff
2909 if(h->slice_type == AV_PICTURE_TYPE_SP){
2910 get_bits1(&s->gb); /* sp_for_switch_flag */
2912 if(h->slice_type==AV_PICTURE_TYPE_SP || h->slice_type == AV_PICTURE_TYPE_SI){
2913 get_se_golomb(&s->gb); /* slice_qs_delta */
2916 h->deblocking_filter = 1;
2917 h->slice_alpha_c0_offset = 52;
2918 h->slice_beta_offset = 52;
2919 if( h->pps.deblocking_filter_parameters_present ) {
2920 tmp= get_ue_golomb_31(&s->gb);
2922 av_log(s->avctx, AV_LOG_ERROR, "deblocking_filter_idc %u out of range\n", tmp);
2925 h->deblocking_filter= tmp;
2926 if(h->deblocking_filter < 2)
2927 h->deblocking_filter^= 1; // 1<->0
2929 if( h->deblocking_filter ) {
2930 h->slice_alpha_c0_offset += get_se_golomb(&s->gb) << 1;
2931 h->slice_beta_offset += get_se_golomb(&s->gb) << 1;
2932 if( h->slice_alpha_c0_offset > 104U
2933 || h->slice_beta_offset > 104U){
2934 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);
2940 if( s->avctx->skip_loop_filter >= AVDISCARD_ALL
2941 ||(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY && h->slice_type_nos != AV_PICTURE_TYPE_I)
2942 ||(s->avctx->skip_loop_filter >= AVDISCARD_BIDIR && h->slice_type_nos == AV_PICTURE_TYPE_B)
2943 ||(s->avctx->skip_loop_filter >= AVDISCARD_NONREF && h->nal_ref_idc == 0))
2944 h->deblocking_filter= 0;
2946 if(h->deblocking_filter == 1 && h0->max_contexts > 1) {
2947 if(s->avctx->flags2 & CODEC_FLAG2_FAST) {
2948 /* Cheat slightly for speed:
2949 Do not bother to deblock across slices. */
2950 h->deblocking_filter = 2;
2952 h0->max_contexts = 1;
2953 if(!h0->single_decode_warning) {
2954 av_log(s->avctx, AV_LOG_INFO, "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
2955 h0->single_decode_warning = 1;
2958 av_log(h->s.avctx, AV_LOG_ERROR, "Deblocking switched inside frame.\n");
2963 h->qp_thresh= 15 + 52 - FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset) - FFMAX3(0, h->pps.chroma_qp_index_offset[0], h->pps.chroma_qp_index_offset[1]);
2966 if( h->pps.num_slice_groups > 1 && h->pps.mb_slice_group_map_type >= 3 && h->pps.mb_slice_group_map_type <= 5)
2967 slice_group_change_cycle= get_bits(&s->gb, ?);
2970 h0->last_slice_type = slice_type;
2971 h->slice_num = ++h0->current_slice;
2972 if(h->slice_num >= MAX_SLICES){
2973 av_log(s->avctx, AV_LOG_ERROR, "Too many slices, increase MAX_SLICES and recompile\n");
2978 int *ref2frm= h->ref2frm[h->slice_num&(MAX_SLICES-1)][j];
2979 for(i=0; i<16; i++){
2981 if(h->ref_list[j][i].data[0]){
2983 uint8_t *base= h->ref_list[j][i].base[0];
2984 for(k=0; k<h->short_ref_count; k++)
2985 if(h->short_ref[k]->base[0] == base){
2989 for(k=0; k<h->long_ref_count; k++)
2990 if(h->long_ref[k] && h->long_ref[k]->base[0] == base){
2991 id_list[i]= h->short_ref_count + k;
3000 ref2frm[i+2]= 4*id_list[i]
3001 +(h->ref_list[j][i].reference&3);
3004 for(i=16; i<48; i++)
3005 ref2frm[i+4]= 4*id_list[(i-16)>>1]
3006 +(h->ref_list[j][i].reference&3);
3009 //FIXME: fix draw_edges+PAFF+frame threads
3010 h->emu_edge_width= (s->flags&CODEC_FLAG_EMU_EDGE || (!h->sps.frame_mbs_only_flag && s->avctx->active_thread_type)) ? 0 : 16;
3011 h->emu_edge_height= (FRAME_MBAFF || FIELD_PICTURE) ? 0 : h->emu_edge_width;
3013 if(s->avctx->debug&FF_DEBUG_PICT_INFO){
3014 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",
3016 (s->picture_structure==PICT_FRAME ? "F" : s->picture_structure==PICT_TOP_FIELD ? "T" : "B"),
3018 av_get_picture_type_char(h->slice_type), h->slice_type_fixed ? " fix" : "", h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "",
3019 pps_id, h->frame_num,
3020 s->current_picture_ptr->field_poc[0], s->current_picture_ptr->field_poc[1],
3021 h->ref_count[0], h->ref_count[1],
3023 h->deblocking_filter, h->slice_alpha_c0_offset/2-26, h->slice_beta_offset/2-26,
3025 h->use_weight==1 && h->use_weight_chroma ? "c" : "",
3026 h->slice_type == AV_PICTURE_TYPE_B ? (h->direct_spatial_mv_pred ? "SPAT" : "TEMP") : ""
3033 int ff_h264_get_slice_type(const H264Context *h)
3035 switch (h->slice_type) {
3036 case AV_PICTURE_TYPE_P: return 0;
3037 case AV_PICTURE_TYPE_B: return 1;
3038 case AV_PICTURE_TYPE_I: return 2;
3039 case AV_PICTURE_TYPE_SP: return 3;
3040 case AV_PICTURE_TYPE_SI: return 4;
3047 * @return non zero if the loop filter can be skiped
3049 static int fill_filter_caches(H264Context *h, int mb_type){
3050 MpegEncContext * const s = &h->s;
3051 const int mb_xy= h->mb_xy;
3052 int top_xy, left_xy[2];
3053 int top_type, left_type[2];
3055 top_xy = mb_xy - (s->mb_stride << MB_FIELD);
3057 //FIXME deblocking could skip the intra and nnz parts.
3059 /* Wow, what a mess, why didn't they simplify the interlacing & intra
3060 * stuff, I can't imagine that these complex rules are worth it. */
3062 left_xy[1] = left_xy[0] = mb_xy-1;
3064 const int left_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[mb_xy-1]);
3065 const int curr_mb_field_flag = IS_INTERLACED(mb_type);
3067 if (left_mb_field_flag != curr_mb_field_flag) {
3068 left_xy[0] -= s->mb_stride;
3071 if(curr_mb_field_flag){
3072 top_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy ]>>7)&1)-1);
3074 if (left_mb_field_flag != curr_mb_field_flag) {
3075 left_xy[1] += s->mb_stride;
3080 h->top_mb_xy = top_xy;
3081 h->left_mb_xy[0] = left_xy[0];
3082 h->left_mb_xy[1] = left_xy[1];
3084 //for sufficiently low qp, filtering wouldn't do anything
3085 //this is a conservative estimate: could also check beta_offset and more accurate chroma_qp
3086 int qp_thresh = h->qp_thresh; //FIXME strictly we should store qp_thresh for each mb of a slice
3087 int qp = s->current_picture.qscale_table[mb_xy];
3089 && (left_xy[0]<0 || ((qp + s->current_picture.qscale_table[left_xy[0]] + 1)>>1) <= qp_thresh)
3090 && (top_xy < 0 || ((qp + s->current_picture.qscale_table[top_xy ] + 1)>>1) <= qp_thresh)){
3093 if( (left_xy[0]< 0 || ((qp + s->current_picture.qscale_table[left_xy[1] ] + 1)>>1) <= qp_thresh)
3094 && (top_xy < s->mb_stride || ((qp + s->current_picture.qscale_table[top_xy -s->mb_stride] + 1)>>1) <= qp_thresh))
3099 top_type = s->current_picture.mb_type[top_xy] ;
3100 left_type[0] = s->current_picture.mb_type[left_xy[0]];
3101 left_type[1] = s->current_picture.mb_type[left_xy[1]];
3102 if(h->deblocking_filter == 2){
3103 if(h->slice_table[top_xy ] != h->slice_num) top_type= 0;
3104 if(h->slice_table[left_xy[0] ] != h->slice_num) left_type[0]= left_type[1]= 0;
3106 if(h->slice_table[top_xy ] == 0xFFFF) top_type= 0;
3107 if(h->slice_table[left_xy[0] ] == 0xFFFF) left_type[0]= left_type[1] =0;
3109 h->top_type = top_type ;
3110 h->left_type[0]= left_type[0];
3111 h->left_type[1]= left_type[1];
3113 if(IS_INTRA(mb_type))
3116 AV_COPY32(&h->non_zero_count_cache[4+8* 1], &h->non_zero_count[mb_xy][ 0]);
3117 AV_COPY32(&h->non_zero_count_cache[4+8* 2], &h->non_zero_count[mb_xy][ 4]);
3118 AV_COPY32(&h->non_zero_count_cache[4+8* 3], &h->non_zero_count[mb_xy][ 8]);
3119 AV_COPY32(&h->non_zero_count_cache[4+8* 4], &h->non_zero_count[mb_xy][12]);
3121 h->cbp= h->cbp_table[mb_xy];
3125 for(list=0; list<h->list_count; list++){
3128 int16_t (*mv_dst)[2];
3129 int16_t (*mv_src)[2];
3131 if(!USES_LIST(mb_type, list)){
3132 fill_rectangle( h->mv_cache[list][scan8[0]], 4, 4, 8, pack16to32(0,0), 4);
3133 AV_WN32A(&h->ref_cache[list][scan8[ 0]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3134 AV_WN32A(&h->ref_cache[list][scan8[ 2]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3135 AV_WN32A(&h->ref_cache[list][scan8[ 8]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3136 AV_WN32A(&h->ref_cache[list][scan8[10]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3140 ref = &s->current_picture.ref_index[list][4*mb_xy];
3142 int (*ref2frm)[64] = h->ref2frm[ h->slice_num&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
3143 AV_WN32A(&h->ref_cache[list][scan8[ 0]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
3144 AV_WN32A(&h->ref_cache[list][scan8[ 2]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
3146 AV_WN32A(&h->ref_cache[list][scan8[ 8]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
3147 AV_WN32A(&h->ref_cache[list][scan8[10]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
3150 b_stride = h->b_stride;
3151 mv_dst = &h->mv_cache[list][scan8[0]];
3152 mv_src = &s->current_picture.motion_val[list][4*s->mb_x + 4*s->mb_y*b_stride];
3154 AV_COPY128(mv_dst + 8*y, mv_src + y*b_stride);
3169 //FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)
3171 AV_COPY32(&h->non_zero_count_cache[4+8*0], &h->non_zero_count[top_xy][3*4]);
3175 h->non_zero_count_cache[3+8*1]= h->non_zero_count[left_xy[0]][3+0*4];
3176 h->non_zero_count_cache[3+8*2]= h->non_zero_count[left_xy[0]][3+1*4];
3177 h->non_zero_count_cache[3+8*3]= h->non_zero_count[left_xy[0]][3+2*4];
3178 h->non_zero_count_cache[3+8*4]= h->non_zero_count[left_xy[0]][3+3*4];
3181 // CAVLC 8x8dct requires NNZ values for residual decoding that differ from what the loop filter needs
3182 if(!CABAC && h->pps.transform_8x8_mode){
3183 if(IS_8x8DCT(top_type)){
3184 h->non_zero_count_cache[4+8*0]=
3185 h->non_zero_count_cache[5+8*0]= (h->cbp_table[top_xy] & 0x4000) >> 12;
3186 h->non_zero_count_cache[6+8*0]=
3187 h->non_zero_count_cache[7+8*0]= (h->cbp_table[top_xy] & 0x8000) >> 12;
3189 if(IS_8x8DCT(left_type[0])){
3190 h->non_zero_count_cache[3+8*1]=
3191 h->non_zero_count_cache[3+8*2]= (h->cbp_table[left_xy[0]]&0x2000) >> 12; //FIXME check MBAFF
3193 if(IS_8x8DCT(left_type[1])){
3194 h->non_zero_count_cache[3+8*3]=
3195 h->non_zero_count_cache[3+8*4]= (h->cbp_table[left_xy[1]]&0x8000) >> 12; //FIXME check MBAFF
3198 if(IS_8x8DCT(mb_type)){
3199 h->non_zero_count_cache[scan8[0 ]]= h->non_zero_count_cache[scan8[1 ]]=
3200 h->non_zero_count_cache[scan8[2 ]]= h->non_zero_count_cache[scan8[3 ]]= (h->cbp & 0x1000) >> 12;
3202 h->non_zero_count_cache[scan8[0+ 4]]= h->non_zero_count_cache[scan8[1+ 4]]=
3203 h->non_zero_count_cache[scan8[2+ 4]]= h->non_zero_count_cache[scan8[3+ 4]]= (h->cbp & 0x2000) >> 12;
3205 h->non_zero_count_cache[scan8[0+ 8]]= h->non_zero_count_cache[scan8[1+ 8]]=
3206 h->non_zero_count_cache[scan8[2+ 8]]= h->non_zero_count_cache[scan8[3+ 8]]= (h->cbp & 0x4000) >> 12;
3208 h->non_zero_count_cache[scan8[0+12]]= h->non_zero_count_cache[scan8[1+12]]=
3209 h->non_zero_count_cache[scan8[2+12]]= h->non_zero_count_cache[scan8[3+12]]= (h->cbp & 0x8000) >> 12;
3213 if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
3215 for(list=0; list<h->list_count; list++){
3216 if(USES_LIST(top_type, list)){
3217 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
3218 const int b8_xy= 4*top_xy + 2;
3219 int (*ref2frm)[64] = h->ref2frm[ h->slice_table[top_xy]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
3220 AV_COPY128(h->mv_cache[list][scan8[0] + 0 - 1*8], s->current_picture.motion_val[list][b_xy + 0]);
3221 h->ref_cache[list][scan8[0] + 0 - 1*8]=
3222 h->ref_cache[list][scan8[0] + 1 - 1*8]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 0]];
3223 h->ref_cache[list][scan8[0] + 2 - 1*8]=
3224 h->ref_cache[list][scan8[0] + 3 - 1*8]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 1]];
3226 AV_ZERO128(h->mv_cache[list][scan8[0] + 0 - 1*8]);
3227 AV_WN32A(&h->ref_cache[list][scan8[0] + 0 - 1*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3230 if(!IS_INTERLACED(mb_type^left_type[0])){
3231 if(USES_LIST(left_type[0], list)){
3232 const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
3233 const int b8_xy= 4*left_xy[0] + 1;
3234 int (*ref2frm)[64] = h->ref2frm[ h->slice_table[left_xy[0]]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
3235 AV_COPY32(h->mv_cache[list][scan8[0] - 1 + 0 ], s->current_picture.motion_val[list][b_xy + h->b_stride*0]);
3236 AV_COPY32(h->mv_cache[list][scan8[0] - 1 + 8 ], s->current_picture.motion_val[list][b_xy + h->b_stride*1]);
3237 AV_COPY32(h->mv_cache[list][scan8[0] - 1 +16 ], s->current_picture.motion_val[list][b_xy + h->b_stride*2]);
3238 AV_COPY32(h->mv_cache[list][scan8[0] - 1 +24 ], s->current_picture.motion_val[list][b_xy + h->b_stride*3]);
3239 h->ref_cache[list][scan8[0] - 1 + 0 ]=
3240 h->ref_cache[list][scan8[0] - 1 + 8 ]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 2*0]];
3241 h->ref_cache[list][scan8[0] - 1 +16 ]=
3242 h->ref_cache[list][scan8[0] - 1 +24 ]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 2*1]];
3244 AV_ZERO32(h->mv_cache [list][scan8[0] - 1 + 0 ]);
3245 AV_ZERO32(h->mv_cache [list][scan8[0] - 1 + 8 ]);
3246 AV_ZERO32(h->mv_cache [list][scan8[0] - 1 +16 ]);
3247 AV_ZERO32(h->mv_cache [list][scan8[0] - 1 +24 ]);
3248 h->ref_cache[list][scan8[0] - 1 + 0 ]=
3249 h->ref_cache[list][scan8[0] - 1 + 8 ]=
3250 h->ref_cache[list][scan8[0] - 1 + 16 ]=
3251 h->ref_cache[list][scan8[0] - 1 + 24 ]= LIST_NOT_USED;
3260 static void loop_filter(H264Context *h, int start_x, int end_x){
3261 MpegEncContext * const s = &h->s;
3262 uint8_t *dest_y, *dest_cb, *dest_cr;
3263 int linesize, uvlinesize, mb_x, mb_y;
3264 const int end_mb_y= s->mb_y + FRAME_MBAFF;
3265 const int old_slice_type= h->slice_type;
3266 const int pixel_shift = h->pixel_shift;
3268 if(h->deblocking_filter) {
3269 for(mb_x= start_x; mb_x<end_x; mb_x++){
3270 for(mb_y=end_mb_y - FRAME_MBAFF; mb_y<= end_mb_y; mb_y++){
3272 mb_xy = h->mb_xy = mb_x + mb_y*s->mb_stride;
3273 h->slice_num= h->slice_table[mb_xy];
3274 mb_type= s->current_picture.mb_type[mb_xy];
3275 h->list_count= h->list_counts[mb_xy];
3278 h->mb_mbaff = h->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
3282 dest_y = s->current_picture.data[0] + ((mb_x << pixel_shift) + mb_y * s->linesize ) * 16;
3283 dest_cb = s->current_picture.data[1] + ((mb_x << pixel_shift) + mb_y * s->uvlinesize) * (8 << CHROMA444);
3284 dest_cr = s->current_picture.data[2] + ((mb_x << pixel_shift) + mb_y * s->uvlinesize) * (8 << CHROMA444);
3285 //FIXME simplify above
3288 linesize = h->mb_linesize = s->linesize * 2;
3289 uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
3290 if(mb_y&1){ //FIXME move out of this function?
3291 dest_y -= s->linesize*15;
3292 dest_cb-= s->uvlinesize*7;
3293 dest_cr-= s->uvlinesize*7;
3296 linesize = h->mb_linesize = s->linesize;
3297 uvlinesize = h->mb_uvlinesize = s->uvlinesize;
3299 backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, CHROMA444, 0);
3300 if(fill_filter_caches(h, mb_type))
3302 h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.qscale_table[mb_xy]);
3303 h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.qscale_table[mb_xy]);
3306 ff_h264_filter_mb (h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
3308 ff_h264_filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
3313 h->slice_type= old_slice_type;
3315 s->mb_y= end_mb_y - FRAME_MBAFF;
3316 h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
3317 h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
3320 static void predict_field_decoding_flag(H264Context *h){
3321 MpegEncContext * const s = &h->s;
3322 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
3323 int mb_type = (h->slice_table[mb_xy-1] == h->slice_num)
3324 ? s->current_picture.mb_type[mb_xy-1]
3325 : (h->slice_table[mb_xy-s->mb_stride] == h->slice_num)
3326 ? s->current_picture.mb_type[mb_xy-s->mb_stride]
3328 h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
3332 * Draw edges and report progress for the last MB row.
3334 static void decode_finish_row(H264Context *h){
3335 MpegEncContext * const s = &h->s;
3336 int top = 16*(s->mb_y >> FIELD_PICTURE);
3337 int height = 16 << FRAME_MBAFF;
3338 int deblock_border = (16 + 4) << FRAME_MBAFF;
3339 int pic_height = 16*s->mb_height >> FIELD_PICTURE;
3341 if (h->deblocking_filter) {
3342 if((top + height) >= pic_height)
3343 height += deblock_border;
3345 top -= deblock_border;
3348 if (top >= pic_height || (top + height) < h->emu_edge_height)
3351 height = FFMIN(height, pic_height - top);
3352 if (top < h->emu_edge_height) {
3353 height = top+height;
3357 ff_draw_horiz_band(s, top, height);
3359 if (s->dropable) return;
3361 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, top + height - 1,
3362 s->picture_structure==PICT_BOTTOM_FIELD);
3365 static int decode_slice(struct AVCodecContext *avctx, void *arg){
3366 H264Context *h = *(void**)arg;
3367 MpegEncContext * const s = &h->s;
3368 const int part_mask= s->partitioned_frame ? (AC_END|AC_ERROR) : 0x7F;
3369 int lf_x_start = s->mb_x;
3373 h->is_complex = FRAME_MBAFF || s->picture_structure != PICT_FRAME || s->codec_id != CODEC_ID_H264 ||
3374 (CONFIG_GRAY && (s->flags&CODEC_FLAG_GRAY));
3376 if( h->pps.cabac ) {
3378 align_get_bits( &s->gb );
3381 ff_init_cabac_states( &h->cabac);
3382 ff_init_cabac_decoder( &h->cabac,
3383 s->gb.buffer + get_bits_count(&s->gb)/8,
3384 (get_bits_left(&s->gb) + 7)/8);
3386 ff_h264_init_cabac_states(h);
3390 int ret = ff_h264_decode_mb_cabac(h);
3392 //STOP_TIMER("decode_mb_cabac")
3394 if(ret>=0) ff_h264_hl_decode_mb(h);
3396 if( ret >= 0 && FRAME_MBAFF ) { //FIXME optimal? or let mb_decode decode 16x32 ?
3399 ret = ff_h264_decode_mb_cabac(h);
3401 if(ret>=0) ff_h264_hl_decode_mb(h);
3404 eos = get_cabac_terminate( &h->cabac );
3406 if((s->workaround_bugs & FF_BUG_TRUNCATED) && h->cabac.bytestream > h->cabac.bytestream_end + 2){
3407 ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
3408 if (s->mb_x >= lf_x_start) loop_filter(h, lf_x_start, s->mb_x + 1);
3411 if( ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 2) {
3412 av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d, bytestream (%td)\n", s->mb_x, s->mb_y, h->cabac.bytestream_end - h->cabac.bytestream);
3413 ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
3417 if( ++s->mb_x >= s->mb_width ) {
3418 loop_filter(h, lf_x_start, s->mb_x);
3419 s->mb_x = lf_x_start = 0;
3420 decode_finish_row(h);
3422 if(FIELD_OR_MBAFF_PICTURE) {
3424 if(FRAME_MBAFF && s->mb_y < s->mb_height)
3425 predict_field_decoding_flag(h);
3429 if( eos || s->mb_y >= s->mb_height ) {
3430 tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
3431 ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
3432 if (s->mb_x > lf_x_start) loop_filter(h, lf_x_start, s->mb_x);
3439 int ret = ff_h264_decode_mb_cavlc(h);
3441 if(ret>=0) ff_h264_hl_decode_mb(h);
3443 if(ret>=0 && FRAME_MBAFF){ //FIXME optimal? or let mb_decode decode 16x32 ?
3445 ret = ff_h264_decode_mb_cavlc(h);
3447 if(ret>=0) ff_h264_hl_decode_mb(h);
3452 av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
3453 ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
3457 if(++s->mb_x >= s->mb_width){
3458 loop_filter(h, lf_x_start, s->mb_x);
3459 s->mb_x = lf_x_start = 0;
3460 decode_finish_row(h);
3462 if(FIELD_OR_MBAFF_PICTURE) {
3464 if(FRAME_MBAFF && s->mb_y < s->mb_height)
3465 predict_field_decoding_flag(h);
3467 if(s->mb_y >= s->mb_height){
3468 tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
3470 if(get_bits_count(&s->gb) == s->gb.size_in_bits ) {
3471 ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
3475 ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
3482 if(get_bits_count(&s->gb) >= s->gb.size_in_bits && s->mb_skip_run<=0){
3483 tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
3484 if(get_bits_count(&s->gb) == s->gb.size_in_bits ){
3485 ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
3486 if (s->mb_x > lf_x_start) loop_filter(h, lf_x_start, s->mb_x);
3490 ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
3499 for(;s->mb_y < s->mb_height; s->mb_y++){
3500 for(;s->mb_x < s->mb_width; s->mb_x++){
3501 int ret= decode_mb(h);
3503 ff_h264_hl_decode_mb(h);
3506 av_log(s->avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
3507 ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
3512 if(++s->mb_x >= s->mb_width){
3514 if(++s->mb_y >= s->mb_height){
3515 if(get_bits_count(s->gb) == s->gb.size_in_bits){
3516 ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
3520 ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
3527 if(get_bits_count(s->?gb) >= s->gb?.size_in_bits){
3528 if(get_bits_count(s->gb) == s->gb.size_in_bits){
3529 ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
3533 ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
3540 ff_draw_horiz_band(s, 16*s->mb_y, 16);
3543 return -1; //not reached
3547 * Call decode_slice() for each context.
3549 * @param h h264 master context
3550 * @param context_count number of contexts to execute
3552 static void execute_decode_slices(H264Context *h, int context_count){
3553 MpegEncContext * const s = &h->s;
3554 AVCodecContext * const avctx= s->avctx;
3558 if (s->avctx->hwaccel)
3560 if(s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
3562 if(context_count == 1) {
3563 decode_slice(avctx, &h);
3565 for(i = 1; i < context_count; i++) {
3566 hx = h->thread_context[i];
3567 hx->s.error_recognition = avctx->error_recognition;
3568 hx->s.error_count = 0;
3571 avctx->execute(avctx, (void *)decode_slice,
3572 h->thread_context, NULL, context_count, sizeof(void*));
3574 /* pull back stuff from slices to master context */
3575 hx = h->thread_context[context_count - 1];
3576 s->mb_x = hx->s.mb_x;
3577 s->mb_y = hx->s.mb_y;
3578 s->dropable = hx->s.dropable;
3579 s->picture_structure = hx->s.picture_structure;
3580 for(i = 1; i < context_count; i++)
3581 h->s.error_count += h->thread_context[i]->s.error_count;
3586 static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){
3587 MpegEncContext * const s = &h->s;
3588 AVCodecContext * const avctx= s->avctx;
3589 H264Context *hx; ///< thread context
3593 int pass = !(avctx->active_thread_type & FF_THREAD_FRAME);
3594 int nals_needed=0; ///< number of NALs that need decoding before the next frame thread starts
3597 h->max_contexts = (HAVE_THREADS && (s->avctx->active_thread_type&FF_THREAD_SLICE)) ? avctx->thread_count : 1;
3598 if(!(s->flags2 & CODEC_FLAG2_CHUNKS)){
3599 h->current_slice = 0;
3600 if (!s->first_field)
3601 s->current_picture_ptr= NULL;
3602 ff_h264_reset_sei(h);
3605 for(;pass <= 1;pass++){
3608 next_avc = h->is_avc ? 0 : buf_size;
3618 if(buf_index >= next_avc) {
3619 if(buf_index >= buf_size) break;
3621 for(i = 0; i < h->nal_length_size; i++)
3622 nalsize = (nalsize << 8) | buf[buf_index++];
3623 if(nalsize <= 0 || nalsize > buf_size - buf_index){
3624 av_log(h->s.avctx, AV_LOG_ERROR, "AVC: nal size %d\n", nalsize);
3627 next_avc= buf_index + nalsize;
3629 // start code prefix search
3630 for(; buf_index + 3 < next_avc; buf_index++){
3631 // This should always succeed in the first iteration.
3632 if(buf[buf_index] == 0 && buf[buf_index+1] == 0 && buf[buf_index+2] == 1)
3636 if(buf_index+3 >= buf_size) break;
3639 if(buf_index >= next_avc) continue;
3642 hx = h->thread_context[context_count];
3644 ptr= ff_h264_decode_nal(hx, buf + buf_index, &dst_length, &consumed, next_avc - buf_index);
3645 if (ptr==NULL || dst_length < 0){
3648 i= buf_index + consumed;
3649 if((s->workaround_bugs & FF_BUG_AUTODETECT) && i+3<next_avc &&
3650 buf[i]==0x00 && buf[i+1]==0x00 && buf[i+2]==0x01 && buf[i+3]==0xE0)
3651 s->workaround_bugs |= FF_BUG_TRUNCATED;
3653 if(!(s->workaround_bugs & FF_BUG_TRUNCATED)){
3654 while(ptr[dst_length - 1] == 0 && dst_length > 0)
3657 bit_length= !dst_length ? 0 : (8*dst_length - ff_h264_decode_rbsp_trailing(h, ptr + dst_length - 1));
3659 if(s->avctx->debug&FF_DEBUG_STARTCODE){
3660 av_log(h->s.avctx, AV_LOG_DEBUG, "NAL %d at %d/%d length %d\n", hx->nal_unit_type, buf_index, buf_size, dst_length);
3663 if (h->is_avc && (nalsize != consumed) && nalsize){
3664 av_log(h->s.avctx, AV_LOG_DEBUG, "AVC: Consumed only %d bytes instead of %d\n", consumed, nalsize);
3667 buf_index += consumed;
3671 // packets can sometimes contain multiple PPS/SPS
3672 // e.g. two PAFF field pictures in one packet, or a demuxer which splits NALs strangely
3673 // if so, when frame threading we can't start the next thread until we've read all of them
3674 switch (hx->nal_unit_type) {
3677 nals_needed = nal_index;
3682 //FIXME do not discard SEI id
3683 if(avctx->skip_frame >= AVDISCARD_NONREF && h->nal_ref_idc == 0)
3688 switch(hx->nal_unit_type){
3690 if (h->nal_unit_type != NAL_IDR_SLICE) {
3691 av_log(h->s.avctx, AV_LOG_ERROR, "Invalid mix of idr and non-idr slices");
3694 idr(h); //FIXME ensure we don't loose some frames if there is reordering
3696 init_get_bits(&hx->s.gb, ptr, bit_length);
3698 hx->inter_gb_ptr= &hx->s.gb;
3699 hx->s.data_partitioning = 0;
3701 if((err = decode_slice_header(hx, h)))
3704 s->current_picture_ptr->key_frame |=
3705 (hx->nal_unit_type == NAL_IDR_SLICE) ||
3706 (h->sei_recovery_frame_cnt >= 0);
3708 if (h->current_slice == 1) {
3709 if(!(s->flags2 & CODEC_FLAG2_CHUNKS)) {
3710 decode_postinit(h, nal_index >= nals_needed);
3713 if (s->avctx->hwaccel && s->avctx->hwaccel->start_frame(s->avctx, NULL, 0) < 0)
3715 if(CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
3716 ff_vdpau_h264_picture_start(s);
3719 if(hx->redundant_pic_count==0
3720 && (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
3721 && (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type_nos!=AV_PICTURE_TYPE_B)
3722 && (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==AV_PICTURE_TYPE_I)
3723 && avctx->skip_frame < AVDISCARD_ALL){
3724 if(avctx->hwaccel) {
3725 if (avctx->hwaccel->decode_slice(avctx, &buf[buf_index - consumed], consumed) < 0)
3728 if(CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU){
3729 static const uint8_t start_code[] = {0x00, 0x00, 0x01};
3730 ff_vdpau_add_data_chunk(s, start_code, sizeof(start_code));
3731 ff_vdpau_add_data_chunk(s, &buf[buf_index - consumed], consumed );
3737 init_get_bits(&hx->s.gb, ptr, bit_length);
3739 hx->inter_gb_ptr= NULL;
3741 if ((err = decode_slice_header(hx, h)) < 0)
3744 hx->s.data_partitioning = 1;
3748 init_get_bits(&hx->intra_gb, ptr, bit_length);
3749 hx->intra_gb_ptr= &hx->intra_gb;
3752 init_get_bits(&hx->inter_gb, ptr, bit_length);
3753 hx->inter_gb_ptr= &hx->inter_gb;
3755 if(hx->redundant_pic_count==0 && hx->intra_gb_ptr && hx->s.data_partitioning
3756 && s->context_initialized
3757 && (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
3758 && (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type_nos!=AV_PICTURE_TYPE_B)
3759 && (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==AV_PICTURE_TYPE_I)
3760 && avctx->skip_frame < AVDISCARD_ALL)
3764 init_get_bits(&s->gb, ptr, bit_length);
3765 ff_h264_decode_sei(h);
3768 init_get_bits(&s->gb, ptr, bit_length);
3769 ff_h264_decode_seq_parameter_set(h);
3771 if(s->flags& CODEC_FLAG_LOW_DELAY)
3774 if(avctx->has_b_frames < 2)
3775 avctx->has_b_frames= !s->low_delay;
3777 if (avctx->bits_per_raw_sample != h->sps.bit_depth_luma) {
3778 if (h->sps.bit_depth_luma >= 8 && h->sps.bit_depth_luma <= 10) {
3779 avctx->bits_per_raw_sample = h->sps.bit_depth_luma;
3780 h->pixel_shift = h->sps.bit_depth_luma > 8;
3782 ff_h264dsp_init(&h->h264dsp, h->sps.bit_depth_luma);
3783 ff_h264_pred_init(&h->hpc, s->codec_id, h->sps.bit_depth_luma);
3784 dsputil_init(&s->dsp, s->avctx);
3786 av_log(avctx, AV_LOG_DEBUG, "Unsupported bit depth: %d\n", h->sps.bit_depth_luma);
3792 init_get_bits(&s->gb, ptr, bit_length);
3794 ff_h264_decode_picture_parameter_set(h, bit_length);
3798 case NAL_END_SEQUENCE:
3799 case NAL_END_STREAM:
3800 case NAL_FILLER_DATA:
3802 case NAL_AUXILIARY_SLICE:
3805 av_log(avctx, AV_LOG_DEBUG, "Unknown NAL code: %d (%d bits)\n", hx->nal_unit_type, bit_length);
3808 if(context_count == h->max_contexts) {
3809 execute_decode_slices(h, context_count);
3814 av_log(h->s.avctx, AV_LOG_ERROR, "decode_slice_header error\n");
3816 /* Slice could not be decoded in parallel mode, copy down
3817 * NAL unit stuff to context 0 and restart. Note that
3818 * rbsp_buffer is not transferred, but since we no longer
3819 * run in parallel mode this should not be an issue. */
3820 h->nal_unit_type = hx->nal_unit_type;
3821 h->nal_ref_idc = hx->nal_ref_idc;
3828 execute_decode_slices(h, context_count);
3833 * returns the number of bytes consumed for building the current frame
3835 static int get_consumed_bytes(MpegEncContext *s, int pos, int buf_size){
3836 if(pos==0) pos=1; //avoid infinite loops (i doubt that is needed but ...)
3837 if(pos+10>buf_size) pos=buf_size; // oops ;)
3842 static int decode_frame(AVCodecContext *avctx,
3843 void *data, int *data_size,
3846 const uint8_t *buf = avpkt->data;
3847 int buf_size = avpkt->size;
3848 H264Context *h = avctx->priv_data;
3849 MpegEncContext *s = &h->s;
3850 AVFrame *pict = data;
3853 s->flags= avctx->flags;
3854 s->flags2= avctx->flags2;
3856 /* end of stream, output what is still in the buffers */
3858 if (buf_size == 0) {
3862 s->current_picture_ptr = NULL;
3864 //FIXME factorize this with the output code below
3865 out = h->delayed_pic[0];
3867 for(i=1; h->delayed_pic[i] && !h->delayed_pic[i]->key_frame && !h->delayed_pic[i]->mmco_reset; i++)
3868 if(h->delayed_pic[i]->poc < out->poc){
3869 out = h->delayed_pic[i];
3873 for(i=out_idx; h->delayed_pic[i]; i++)
3874 h->delayed_pic[i] = h->delayed_pic[i+1];
3877 *data_size = sizeof(AVFrame);
3878 *pict= *(AVFrame*)out;
3884 buf_index=decode_nal_units(h, buf, buf_size);
3888 if (!s->current_picture_ptr && h->nal_unit_type == NAL_END_SEQUENCE) {
3893 if(!(s->flags2 & CODEC_FLAG2_CHUNKS) && !s->current_picture_ptr){
3894 if (avctx->skip_frame >= AVDISCARD_NONREF)
3896 av_log(avctx, AV_LOG_ERROR, "no frame!\n");
3900 if(!(s->flags2 & CODEC_FLAG2_CHUNKS) || (s->mb_y >= s->mb_height && s->mb_height)){
3902 if(s->flags2 & CODEC_FLAG2_CHUNKS) decode_postinit(h, 1);
3906 if (!h->next_output_pic) {
3907 /* Wait for second field. */
3911 *data_size = sizeof(AVFrame);
3912 *pict = *(AVFrame*)h->next_output_pic;
3916 assert(pict->data[0] || !*data_size);
3917 ff_print_debug_info(s, pict);
3918 //printf("out %d\n", (int)pict->data[0]);
3920 return get_consumed_bytes(s, buf_index, buf_size);
3923 static inline void fill_mb_avail(H264Context *h){
3924 MpegEncContext * const s = &h->s;
3925 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
3928 h->mb_avail[0]= s->mb_x && h->slice_table[mb_xy - s->mb_stride - 1] == h->slice_num;
3929 h->mb_avail[1]= h->slice_table[mb_xy - s->mb_stride ] == h->slice_num;
3930 h->mb_avail[2]= s->mb_x+1 < s->mb_width && h->slice_table[mb_xy - s->mb_stride + 1] == h->slice_num;
3936 h->mb_avail[3]= s->mb_x && h->slice_table[mb_xy - 1] == h->slice_num;
3937 h->mb_avail[4]= 1; //FIXME move out
3938 h->mb_avail[5]= 0; //FIXME move out
3946 #define SIZE (COUNT*40)
3952 // int int_temp[10000];
3954 AVCodecContext avctx;
3956 dsputil_init(&dsp, &avctx);
3958 init_put_bits(&pb, temp, SIZE);
3959 printf("testing unsigned exp golomb\n");
3960 for(i=0; i<COUNT; i++){
3962 set_ue_golomb(&pb, i);
3963 STOP_TIMER("set_ue_golomb");
3965 flush_put_bits(&pb);
3967 init_get_bits(&gb, temp, 8*SIZE);
3968 for(i=0; i<COUNT; i++){
3971 s= show_bits(&gb, 24);
3974 j= get_ue_golomb(&gb);
3976 printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
3979 STOP_TIMER("get_ue_golomb");
3983 init_put_bits(&pb, temp, SIZE);
3984 printf("testing signed exp golomb\n");
3985 for(i=0; i<COUNT; i++){
3987 set_se_golomb(&pb, i - COUNT/2);
3988 STOP_TIMER("set_se_golomb");
3990 flush_put_bits(&pb);
3992 init_get_bits(&gb, temp, 8*SIZE);
3993 for(i=0; i<COUNT; i++){
3996 s= show_bits(&gb, 24);
3999 j= get_se_golomb(&gb);
4000 if(j != i - COUNT/2){
4001 printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
4004 STOP_TIMER("get_se_golomb");
4008 printf("testing 4x4 (I)DCT\n");
4011 uint8_t src[16], ref[16];
4012 uint64_t error= 0, max_error=0;
4014 for(i=0; i<COUNT; i++){
4016 // printf("%d %d %d\n", r1, r2, (r2-r1)*16);
4017 for(j=0; j<16; j++){
4018 ref[j]= random()%255;
4019 src[j]= random()%255;
4022 h264_diff_dct_c(block, src, ref, 4);
4025 for(j=0; j<16; j++){
4026 // printf("%d ", block[j]);
4027 block[j]= block[j]*4;
4028 if(j&1) block[j]= (block[j]*4 + 2)/5;
4029 if(j&4) block[j]= (block[j]*4 + 2)/5;
4033 h->h264dsp.h264_idct_add(ref, block, 4);
4034 /* for(j=0; j<16; j++){
4035 printf("%d ", ref[j]);
4039 for(j=0; j<16; j++){
4040 int diff= FFABS(src[j] - ref[j]);
4043 max_error= FFMAX(max_error, diff);
4046 printf("error=%f max_error=%d\n", ((float)error)/COUNT/16, (int)max_error );
4047 printf("testing quantizer\n");
4048 for(qp=0; qp<52; qp++){
4050 src1_block[i]= src2_block[i]= random()%255;
4053 printf("Testing NAL layer\n");
4055 uint8_t bitstream[COUNT];
4056 uint8_t nal[COUNT*2];
4058 memset(&h, 0, sizeof(H264Context));
4060 for(i=0; i<COUNT; i++){
4068 for(j=0; j<COUNT; j++){
4069 bitstream[j]= (random() % 255) + 1;
4072 for(j=0; j<zeros; j++){
4073 int pos= random() % COUNT;
4074 while(bitstream[pos] == 0){
4083 nal_length= encode_nal(&h, nal, bitstream, COUNT, COUNT*2);
4085 printf("encoding failed\n");
4089 out= ff_h264_decode_nal(&h, nal, &out_length, &consumed, nal_length);
4093 if(out_length != COUNT){
4094 printf("incorrect length %d %d\n", out_length, COUNT);
4098 if(consumed != nal_length){
4099 printf("incorrect consumed length %d %d\n", nal_length, consumed);
4103 if(memcmp(bitstream, out, COUNT)){
4104 printf("mismatch\n");
4110 printf("Testing RBSP\n");
4118 av_cold void ff_h264_free_context(H264Context *h)
4122 free_tables(h, 1); //FIXME cleanup init stuff perhaps
4124 for(i = 0; i < MAX_SPS_COUNT; i++)
4125 av_freep(h->sps_buffers + i);
4127 for(i = 0; i < MAX_PPS_COUNT; i++)
4128 av_freep(h->pps_buffers + i);
4131 av_cold int ff_h264_decode_end(AVCodecContext *avctx)
4133 H264Context *h = avctx->priv_data;
4134 MpegEncContext *s = &h->s;
4136 ff_h264_free_context(h);
4140 // memset(h, 0, sizeof(H264Context));
4145 static const AVProfile profiles[] = {
4146 { FF_PROFILE_H264_BASELINE, "Baseline" },
4147 { FF_PROFILE_H264_CONSTRAINED_BASELINE, "Constrained Baseline" },
4148 { FF_PROFILE_H264_MAIN, "Main" },
4149 { FF_PROFILE_H264_EXTENDED, "Extended" },
4150 { FF_PROFILE_H264_HIGH, "High" },
4151 { FF_PROFILE_H264_HIGH_10, "High 10" },
4152 { FF_PROFILE_H264_HIGH_10_INTRA, "High 10 Intra" },
4153 { FF_PROFILE_H264_HIGH_422, "High 4:2:2" },
4154 { FF_PROFILE_H264_HIGH_422_INTRA, "High 4:2:2 Intra" },
4155 { FF_PROFILE_H264_HIGH_444, "High 4:4:4" },
4156 { FF_PROFILE_H264_HIGH_444_PREDICTIVE, "High 4:4:4 Predictive" },
4157 { FF_PROFILE_H264_HIGH_444_INTRA, "High 4:4:4 Intra" },
4158 { FF_PROFILE_H264_CAVLC_444, "CAVLC 4:4:4" },
4159 { FF_PROFILE_UNKNOWN },
4162 AVCodec ff_h264_decoder = {
4166 sizeof(H264Context),
4167 ff_h264_decode_init,
4171 /*CODEC_CAP_DRAW_HORIZ_BAND |*/ CODEC_CAP_DR1 | CODEC_CAP_DELAY |
4172 CODEC_CAP_SLICE_THREADS | CODEC_CAP_FRAME_THREADS,
4174 .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
4175 .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy),
4176 .update_thread_context = ONLY_IF_THREADS_ENABLED(decode_update_thread_context),
4177 .profiles = NULL_IF_CONFIG_SMALL(profiles),
4180 #if CONFIG_H264_VDPAU_DECODER
4181 AVCodec ff_h264_vdpau_decoder = {
4185 sizeof(H264Context),
4186 ff_h264_decode_init,
4190 CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU,
4192 .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)"),
4193 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_VDPAU_H264, PIX_FMT_NONE},
4194 .profiles = NULL_IF_CONFIG_SMALL(profiles),