2 * H.26L/H.264/AVC/JVT/14496-10/... decoder
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 * H.264 / AVC / MPEG4 part10 codec.
25 * @author Michael Niedermayer <michaelni@gmx.at>
28 #include "libavutil/imgutils.h"
32 #include "mpegvideo.h"
35 #include "h264_mvpred.h"
38 #include "rectangle.h"
40 #include "vdpau_internal.h"
41 #include "libavutil/avassert.h"
48 static const uint8_t rem6[QP_MAX_NUM+1]={
49 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3,
52 static const uint8_t div6[QP_MAX_NUM+1]={
53 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9,10,10,10,10,
56 static const enum PixelFormat hwaccel_pixfmt_list_h264_jpeg_420[] = {
64 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
66 int ff_h264_check_intra4x4_pred_mode(H264Context *h){
67 MpegEncContext * const s = &h->s;
68 static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0};
69 static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED};
72 if(!(h->top_samples_available&0x8000)){
74 int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ];
76 av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
79 h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
84 if((h->left_samples_available&0x8888)!=0x8888){
85 static const int mask[4]={0x8000,0x2000,0x80,0x20};
87 if(!(h->left_samples_available&mask[i])){
88 int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ];
90 av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
93 h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status;
100 } //FIXME cleanup like ff_h264_check_intra_pred_mode
103 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
105 int ff_h264_check_intra_pred_mode(H264Context *h, int mode){
106 MpegEncContext * const s = &h->s;
107 static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
108 static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
111 av_log(h->s.avctx, AV_LOG_ERROR, "out of range intra chroma pred mode at %d %d\n", s->mb_x, s->mb_y);
115 if(!(h->top_samples_available&0x8000)){
118 av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
123 if((h->left_samples_available&0x8080) != 0x8080){
125 if(h->left_samples_available&0x8080){ //mad cow disease mode, aka MBAFF + constrained_intra_pred
126 mode= ALZHEIMER_DC_L0T_PRED8x8 + (!(h->left_samples_available&0x8000)) + 2*(mode == DC_128_PRED8x8);
129 av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
137 const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length){
142 // src[0]&0x80; //forbidden bit
143 h->nal_ref_idc= src[0]>>5;
144 h->nal_unit_type= src[0]&0x1F;
148 #if HAVE_FAST_UNALIGNED
151 for(i=0; i+1<length; i+=9){
152 if(!((~AV_RN64A(src+i) & (AV_RN64A(src+i) - 0x0100010001000101ULL)) & 0x8000800080008080ULL))
155 for(i=0; i+1<length; i+=5){
156 if(!((~AV_RN32A(src+i) & (AV_RN32A(src+i) - 0x01000101U)) & 0x80008080U))
159 if(i>0 && !src[i]) i--;
163 for(i=0; i+1<length; i+=2){
165 if(i>0 && src[i-1]==0) i--;
167 if(i+2<length && src[i+1]==0 && src[i+2]<=3){
169 /* startcode, so we must be past the end */
177 if(i>=length-1){ //no escaped 0
179 *consumed= length+1; //+1 for the header
183 bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data
184 av_fast_malloc(&h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length+FF_INPUT_BUFFER_PADDING_SIZE);
185 dst= h->rbsp_buffer[bufidx];
191 //printf("decoding esc\n");
195 //remove escapes (very rare 1:2^22)
197 dst[di++]= src[si++];
198 dst[di++]= src[si++];
199 }else if(src[si]==0 && src[si+1]==0){
200 if(src[si+2]==3){ //escape
205 }else //next start code
209 dst[di++]= src[si++];
212 dst[di++]= src[si++];
215 memset(dst+di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
218 *consumed= si + 1;//+1 for the header
219 //FIXME store exact number of bits in the getbitcontext (it is needed for decoding)
224 * Identify the exact end of the bitstream
225 * @return the length of the trailing, or 0 if damaged
227 static int ff_h264_decode_rbsp_trailing(H264Context *h, const uint8_t *src){
231 tprintf(h->s.avctx, "rbsp trailing %X\n", v);
240 static inline int get_lowest_part_list_y(H264Context *h, Picture *pic, int n, int height,
241 int y_offset, int list){
242 int raw_my= h->mv_cache[list][ scan8[n] ][1];
243 int filter_height= (raw_my&3) ? 2 : 0;
244 int full_my= (raw_my>>2) + y_offset;
245 int top = full_my - filter_height, bottom = full_my + height + filter_height;
247 return FFMAX(abs(top), bottom);
250 static inline void get_lowest_part_y(H264Context *h, int refs[2][48], int n, int height,
251 int y_offset, int list0, int list1, int *nrefs){
252 MpegEncContext * const s = &h->s;
255 y_offset += 16*(s->mb_y >> MB_FIELD);
258 int ref_n = h->ref_cache[0][ scan8[n] ];
259 Picture *ref= &h->ref_list[0][ref_n];
261 // Error resilience puts the current picture in the ref list.
262 // Don't try to wait on these as it will cause a deadlock.
263 // Fields can wait on each other, though.
264 if (ref->f.thread_opaque != s->current_picture.f.thread_opaque ||
265 (ref->f.reference & 3) != s->picture_structure) {
266 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 0);
267 if (refs[0][ref_n] < 0) nrefs[0] += 1;
268 refs[0][ref_n] = FFMAX(refs[0][ref_n], my);
273 int ref_n = h->ref_cache[1][ scan8[n] ];
274 Picture *ref= &h->ref_list[1][ref_n];
276 if (ref->f.thread_opaque != s->current_picture.f.thread_opaque ||
277 (ref->f.reference & 3) != s->picture_structure) {
278 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 1);
279 if (refs[1][ref_n] < 0) nrefs[1] += 1;
280 refs[1][ref_n] = FFMAX(refs[1][ref_n], my);
286 * Wait until all reference frames are available for MC operations.
288 * @param h the H264 context
290 static void await_references(H264Context *h){
291 MpegEncContext * const s = &h->s;
292 const int mb_xy= h->mb_xy;
293 const int mb_type = s->current_picture.f.mb_type[mb_xy];
298 memset(refs, -1, sizeof(refs));
300 if(IS_16X16(mb_type)){
301 get_lowest_part_y(h, refs, 0, 16, 0,
302 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
303 }else if(IS_16X8(mb_type)){
304 get_lowest_part_y(h, refs, 0, 8, 0,
305 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
306 get_lowest_part_y(h, refs, 8, 8, 8,
307 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
308 }else if(IS_8X16(mb_type)){
309 get_lowest_part_y(h, refs, 0, 16, 0,
310 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
311 get_lowest_part_y(h, refs, 4, 16, 0,
312 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
316 assert(IS_8X8(mb_type));
319 const int sub_mb_type= h->sub_mb_type[i];
321 int y_offset= (i&2)<<2;
323 if(IS_SUB_8X8(sub_mb_type)){
324 get_lowest_part_y(h, refs, n , 8, y_offset,
325 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
326 }else if(IS_SUB_8X4(sub_mb_type)){
327 get_lowest_part_y(h, refs, n , 4, y_offset,
328 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
329 get_lowest_part_y(h, refs, n+2, 4, y_offset+4,
330 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
331 }else if(IS_SUB_4X8(sub_mb_type)){
332 get_lowest_part_y(h, refs, n , 8, y_offset,
333 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
334 get_lowest_part_y(h, refs, n+1, 8, y_offset,
335 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
338 assert(IS_SUB_4X4(sub_mb_type));
340 int sub_y_offset= y_offset + 2*(j&2);
341 get_lowest_part_y(h, refs, n+j, 4, sub_y_offset,
342 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
348 for(list=h->list_count-1; list>=0; list--){
349 for(ref=0; ref<48 && nrefs[list]; ref++){
350 int row = refs[list][ref];
352 Picture *ref_pic = &h->ref_list[list][ref];
353 int ref_field = ref_pic->f.reference - 1;
354 int ref_field_picture = ref_pic->field_picture;
355 int pic_height = 16*s->mb_height >> ref_field_picture;
360 if(!FIELD_PICTURE && ref_field_picture){ // frame referencing two fields
361 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN((row >> 1) - !(row&1), pic_height-1), 1);
362 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN((row >> 1) , pic_height-1), 0);
363 }else if(FIELD_PICTURE && !ref_field_picture){ // field referencing one field of a frame
364 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row*2 + ref_field , pic_height-1), 0);
365 }else if(FIELD_PICTURE){
366 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row, pic_height-1), ref_field);
368 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row, pic_height-1), 0);
377 * DCT transforms the 16 dc values.
378 * @param qp quantization parameter ??? FIXME
380 static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
381 // const int qmul= dequant_coeff[qp][0];
383 int temp[16]; //FIXME check if this is a good idea
384 static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
385 static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
388 const int offset= y_offset[i];
389 const int z0= block[offset+stride*0] + block[offset+stride*4];
390 const int z1= block[offset+stride*0] - block[offset+stride*4];
391 const int z2= block[offset+stride*1] - block[offset+stride*5];
392 const int z3= block[offset+stride*1] + block[offset+stride*5];
401 const int offset= x_offset[i];
402 const int z0= temp[4*0+i] + temp[4*2+i];
403 const int z1= temp[4*0+i] - temp[4*2+i];
404 const int z2= temp[4*1+i] - temp[4*3+i];
405 const int z3= temp[4*1+i] + temp[4*3+i];
407 block[stride*0 +offset]= (z0 + z3)>>1;
408 block[stride*2 +offset]= (z1 + z2)>>1;
409 block[stride*8 +offset]= (z1 - z2)>>1;
410 block[stride*10+offset]= (z0 - z3)>>1;
419 static void chroma_dc_dct_c(DCTELEM *block){
420 const int stride= 16*2;
421 const int xStride= 16;
424 a= block[stride*0 + xStride*0];
425 b= block[stride*0 + xStride*1];
426 c= block[stride*1 + xStride*0];
427 d= block[stride*1 + xStride*1];
434 block[stride*0 + xStride*0]= (a+c);
435 block[stride*0 + xStride*1]= (e+b);
436 block[stride*1 + xStride*0]= (a-c);
437 block[stride*1 + xStride*1]= (e-b);
441 static av_always_inline void
442 mc_dir_part(H264Context *h, Picture *pic, int n, int square,
443 int height, int delta, int list,
444 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
445 int src_x_offset, int src_y_offset,
446 qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op,
447 int pixel_shift, int chroma_idc)
449 MpegEncContext * const s = &h->s;
450 const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8;
451 int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8;
452 const int luma_xy= (mx&3) + ((my&3)<<2);
453 int offset = ((mx>>2) << pixel_shift) + (my>>2)*h->mb_linesize;
454 uint8_t * src_y = pic->f.data[0] + offset;
455 uint8_t * src_cb, * src_cr;
456 int extra_width= h->emu_edge_width;
457 int extra_height= h->emu_edge_height;
459 const int full_mx= mx>>2;
460 const int full_my= my>>2;
461 const int pic_width = 16*s->mb_width;
462 const int pic_height = 16*s->mb_height >> MB_FIELD;
465 if(mx&7) extra_width -= 3;
466 if(my&7) extra_height -= 3;
468 if( full_mx < 0-extra_width
469 || full_my < 0-extra_height
470 || full_mx + 16/*FIXME*/ > pic_width + extra_width
471 || full_my + 16/*FIXME*/ > pic_height + extra_height){
472 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_y - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
473 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
474 src_y= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
478 qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); //FIXME try variable height perhaps?
480 qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize);
483 if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return;
485 if(chroma_idc == 3 /* yuv444 */){
486 src_cb = pic->f.data[1] + offset;
488 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cb - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
489 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
490 src_cb= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
492 qpix_op[luma_xy](dest_cb, src_cb, h->mb_linesize); //FIXME try variable height perhaps?
494 qpix_op[luma_xy](dest_cb + delta, src_cb + delta, h->mb_linesize);
497 src_cr = pic->f.data[2] + offset;
499 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cr - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
500 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
501 src_cr= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
503 qpix_op[luma_xy](dest_cr, src_cr, h->mb_linesize); //FIXME try variable height perhaps?
505 qpix_op[luma_xy](dest_cr + delta, src_cr + delta, h->mb_linesize);
510 ysh = 3 - (chroma_idc == 2 /* yuv422 */);
511 if(chroma_idc == 1 /* yuv420 */ && MB_FIELD){
512 // chroma offset when predicting from a field of opposite parity
513 my += 2 * ((s->mb_y & 1) - (pic->f.reference - 1));
514 emu |= (my>>3) < 0 || (my>>3) + 8 >= (pic_height>>1);
517 src_cb = pic->f.data[1] + ((mx >> 3) << pixel_shift) + (my >> ysh) * h->mb_uvlinesize;
518 src_cr = pic->f.data[2] + ((mx >> 3) << pixel_shift) + (my >> ysh) * h->mb_uvlinesize;
521 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cb, h->mb_uvlinesize,
522 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
523 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
524 src_cb= s->edge_emu_buffer;
526 chroma_op(dest_cb, src_cb, h->mb_uvlinesize, height >> (chroma_idc == 1 /* yuv420 */),
527 mx&7, (my << (chroma_idc == 2 /* yuv422 */)) &7);
530 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cr, h->mb_uvlinesize,
531 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
532 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
533 src_cr= s->edge_emu_buffer;
535 chroma_op(dest_cr, src_cr, h->mb_uvlinesize, height >> (chroma_idc == 1 /* yuv420 */),
536 mx&7, (my << (chroma_idc == 2 /* yuv422 */)) &7);
539 static av_always_inline void
540 mc_part_std(H264Context *h, int n, int square, int height, int delta,
541 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
542 int x_offset, int y_offset,
543 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
544 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
545 int list0, int list1, int pixel_shift, int chroma_idc)
547 MpegEncContext * const s = &h->s;
548 qpel_mc_func *qpix_op= qpix_put;
549 h264_chroma_mc_func chroma_op= chroma_put;
551 dest_y += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
552 if (chroma_idc == 3 /* yuv444 */) {
553 dest_cb += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
554 dest_cr += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
555 } else if (chroma_idc == 2 /* yuv422 */) {
556 dest_cb += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
557 dest_cr += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
558 } else /* yuv420 */ {
559 dest_cb += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
560 dest_cr += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
562 x_offset += 8*s->mb_x;
563 y_offset += 8*(s->mb_y >> MB_FIELD);
566 Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ];
567 mc_dir_part(h, ref, n, square, height, delta, 0,
568 dest_y, dest_cb, dest_cr, x_offset, y_offset,
569 qpix_op, chroma_op, pixel_shift, chroma_idc);
572 chroma_op= chroma_avg;
576 Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ];
577 mc_dir_part(h, ref, n, square, height, delta, 1,
578 dest_y, dest_cb, dest_cr, x_offset, y_offset,
579 qpix_op, chroma_op, pixel_shift, chroma_idc);
583 static av_always_inline void
584 mc_part_weighted(H264Context *h, int n, int square, int height, int delta,
585 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
586 int x_offset, int y_offset,
587 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
588 h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op,
589 h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg,
590 int list0, int list1, int pixel_shift, int chroma_idc){
591 MpegEncContext * const s = &h->s;
594 dest_y += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
595 if (chroma_idc == 3 /* yuv444 */) {
596 chroma_height = height;
597 chroma_weight_avg = luma_weight_avg;
598 chroma_weight_op = luma_weight_op;
599 dest_cb += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
600 dest_cr += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
601 } else if (chroma_idc == 2 /* yuv422 */) {
602 chroma_height = height;
603 dest_cb += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
604 dest_cr += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
605 } else /* yuv420 */ {
606 chroma_height = height >> 1;
607 dest_cb += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
608 dest_cr += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
610 x_offset += 8*s->mb_x;
611 y_offset += 8*(s->mb_y >> MB_FIELD);
614 /* don't optimize for luma-only case, since B-frames usually
615 * use implicit weights => chroma too. */
616 uint8_t *tmp_cb = s->obmc_scratchpad;
617 uint8_t *tmp_cr = s->obmc_scratchpad + (16 << pixel_shift);
618 uint8_t *tmp_y = s->obmc_scratchpad + 16*h->mb_uvlinesize;
619 int refn0 = h->ref_cache[0][ scan8[n] ];
620 int refn1 = h->ref_cache[1][ scan8[n] ];
622 mc_dir_part(h, &h->ref_list[0][refn0], n, square, height, delta, 0,
623 dest_y, dest_cb, dest_cr,
624 x_offset, y_offset, qpix_put, chroma_put,
625 pixel_shift, chroma_idc);
626 mc_dir_part(h, &h->ref_list[1][refn1], n, square, height, delta, 1,
627 tmp_y, tmp_cb, tmp_cr,
628 x_offset, y_offset, qpix_put, chroma_put,
629 pixel_shift, chroma_idc);
631 if(h->use_weight == 2){
632 int weight0 = h->implicit_weight[refn0][refn1][s->mb_y&1];
633 int weight1 = 64 - weight0;
634 luma_weight_avg( dest_y, tmp_y, h-> mb_linesize,
635 height, 5, weight0, weight1, 0);
636 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize,
637 chroma_height, 5, weight0, weight1, 0);
638 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize,
639 chroma_height, 5, weight0, weight1, 0);
641 luma_weight_avg(dest_y, tmp_y, h->mb_linesize, height, h->luma_log2_weight_denom,
642 h->luma_weight[refn0][0][0] , h->luma_weight[refn1][1][0],
643 h->luma_weight[refn0][0][1] + h->luma_weight[refn1][1][1]);
644 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
645 h->chroma_weight[refn0][0][0][0] , h->chroma_weight[refn1][1][0][0],
646 h->chroma_weight[refn0][0][0][1] + h->chroma_weight[refn1][1][0][1]);
647 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
648 h->chroma_weight[refn0][0][1][0] , h->chroma_weight[refn1][1][1][0],
649 h->chroma_weight[refn0][0][1][1] + h->chroma_weight[refn1][1][1][1]);
652 int list = list1 ? 1 : 0;
653 int refn = h->ref_cache[list][ scan8[n] ];
654 Picture *ref= &h->ref_list[list][refn];
655 mc_dir_part(h, ref, n, square, height, delta, list,
656 dest_y, dest_cb, dest_cr, x_offset, y_offset,
657 qpix_put, chroma_put, pixel_shift, chroma_idc);
659 luma_weight_op(dest_y, h->mb_linesize, height, h->luma_log2_weight_denom,
660 h->luma_weight[refn][list][0], h->luma_weight[refn][list][1]);
661 if(h->use_weight_chroma){
662 chroma_weight_op(dest_cb, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
663 h->chroma_weight[refn][list][0][0], h->chroma_weight[refn][list][0][1]);
664 chroma_weight_op(dest_cr, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
665 h->chroma_weight[refn][list][1][0], h->chroma_weight[refn][list][1][1]);
670 static av_always_inline void
671 mc_part(H264Context *h, int n, int square, int height, int delta,
672 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
673 int x_offset, int y_offset,
674 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
675 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
676 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
677 int list0, int list1, int pixel_shift, int chroma_idc)
679 if((h->use_weight==2 && list0 && list1
680 && (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ][h->s.mb_y&1] != 32))
682 mc_part_weighted(h, n, square, height, delta, dest_y, dest_cb, dest_cr,
683 x_offset, y_offset, qpix_put, chroma_put,
684 weight_op[0], weight_op[1], weight_avg[0],
685 weight_avg[1], list0, list1, pixel_shift, chroma_idc);
687 mc_part_std(h, n, square, height, delta, dest_y, dest_cb, dest_cr,
688 x_offset, y_offset, qpix_put, chroma_put, qpix_avg,
689 chroma_avg, list0, list1, pixel_shift, chroma_idc);
692 static av_always_inline void
693 prefetch_motion(H264Context *h, int list, int pixel_shift, int chroma_idc)
695 /* fetch pixels for estimated mv 4 macroblocks ahead
696 * optimized for 64byte cache lines */
697 MpegEncContext * const s = &h->s;
698 const int refn = h->ref_cache[list][scan8[0]];
700 const int mx= (h->mv_cache[list][scan8[0]][0]>>2) + 16*s->mb_x + 8;
701 const int my= (h->mv_cache[list][scan8[0]][1]>>2) + 16*s->mb_y;
702 uint8_t **src = h->ref_list[list][refn].f.data;
703 int off= (mx << pixel_shift) + (my + (s->mb_x&3)*4)*h->mb_linesize + (64 << pixel_shift);
704 s->dsp.prefetch(src[0]+off, s->linesize, 4);
705 if (chroma_idc == 3 /* yuv444 */) {
706 s->dsp.prefetch(src[1]+off, s->linesize, 4);
707 s->dsp.prefetch(src[2]+off, s->linesize, 4);
709 off= ((mx>>1) << pixel_shift) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + (64 << pixel_shift);
710 s->dsp.prefetch(src[1]+off, src[2]-src[1], 2);
715 static av_always_inline void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
716 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
717 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
718 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
719 int pixel_shift, int chroma_idc)
721 MpegEncContext * const s = &h->s;
722 const int mb_xy= h->mb_xy;
723 const int mb_type = s->current_picture.f.mb_type[mb_xy];
725 assert(IS_INTER(mb_type));
727 if(HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME))
729 prefetch_motion(h, 0, pixel_shift, chroma_idc);
731 if(IS_16X16(mb_type)){
732 mc_part(h, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0,
733 qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
734 weight_op, weight_avg,
735 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
736 pixel_shift, chroma_idc);
737 }else if(IS_16X8(mb_type)){
738 mc_part(h, 0, 0, 8, 8 << pixel_shift, dest_y, dest_cb, dest_cr, 0, 0,
739 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
740 weight_op, weight_avg,
741 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
742 pixel_shift, chroma_idc);
743 mc_part(h, 8, 0, 8, 8 << pixel_shift, dest_y, dest_cb, dest_cr, 0, 4,
744 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
745 weight_op, weight_avg,
746 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1),
747 pixel_shift, chroma_idc);
748 }else if(IS_8X16(mb_type)){
749 mc_part(h, 0, 0, 16, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
750 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
751 &weight_op[1], &weight_avg[1],
752 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
753 pixel_shift, chroma_idc);
754 mc_part(h, 4, 0, 16, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
755 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
756 &weight_op[1], &weight_avg[1],
757 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1),
758 pixel_shift, chroma_idc);
762 assert(IS_8X8(mb_type));
765 const int sub_mb_type= h->sub_mb_type[i];
767 int x_offset= (i&1)<<2;
768 int y_offset= (i&2)<<1;
770 if(IS_SUB_8X8(sub_mb_type)){
771 mc_part(h, n, 1, 8, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset,
772 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
773 &weight_op[1], &weight_avg[1],
774 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
775 pixel_shift, chroma_idc);
776 }else if(IS_SUB_8X4(sub_mb_type)){
777 mc_part(h, n , 0, 4, 4 << pixel_shift, dest_y, dest_cb, dest_cr, x_offset, y_offset,
778 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
779 &weight_op[1], &weight_avg[1],
780 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
781 pixel_shift, chroma_idc);
782 mc_part(h, n+2, 0, 4, 4 << pixel_shift, dest_y, dest_cb, dest_cr, x_offset, y_offset+2,
783 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
784 &weight_op[1], &weight_avg[1],
785 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
786 pixel_shift, chroma_idc);
787 }else if(IS_SUB_4X8(sub_mb_type)){
788 mc_part(h, n , 0, 8, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset,
789 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
790 &weight_op[2], &weight_avg[2],
791 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
792 pixel_shift, chroma_idc);
793 mc_part(h, n+1, 0, 8, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset,
794 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
795 &weight_op[2], &weight_avg[2],
796 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
797 pixel_shift, chroma_idc);
800 assert(IS_SUB_4X4(sub_mb_type));
802 int sub_x_offset= x_offset + 2*(j&1);
803 int sub_y_offset= y_offset + (j&2);
804 mc_part(h, n+j, 1, 4, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
805 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
806 &weight_op[2], &weight_avg[2],
807 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
808 pixel_shift, chroma_idc);
814 prefetch_motion(h, 1, pixel_shift, chroma_idc);
817 static av_always_inline void
818 hl_motion_420(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
819 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
820 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
821 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
824 hl_motion(h, dest_y, dest_cb, dest_cr, qpix_put, chroma_put,
825 qpix_avg, chroma_avg, weight_op, weight_avg, pixel_shift, 1);
828 static av_always_inline void
829 hl_motion_422(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
830 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
831 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
832 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
835 hl_motion(h, dest_y, dest_cb, dest_cr, qpix_put, chroma_put,
836 qpix_avg, chroma_avg, weight_op, weight_avg, pixel_shift, 2);
839 static void free_tables(H264Context *h, int free_rbsp){
843 av_freep(&h->intra4x4_pred_mode);
844 av_freep(&h->chroma_pred_mode_table);
845 av_freep(&h->cbp_table);
846 av_freep(&h->mvd_table[0]);
847 av_freep(&h->mvd_table[1]);
848 av_freep(&h->direct_table);
849 av_freep(&h->non_zero_count);
850 av_freep(&h->slice_table_base);
851 h->slice_table= NULL;
852 av_freep(&h->list_counts);
854 av_freep(&h->mb2b_xy);
855 av_freep(&h->mb2br_xy);
857 for(i = 0; i < MAX_THREADS; i++) {
858 hx = h->thread_context[i];
860 av_freep(&hx->top_borders[1]);
861 av_freep(&hx->top_borders[0]);
862 av_freep(&hx->s.obmc_scratchpad);
864 av_freep(&hx->rbsp_buffer[1]);
865 av_freep(&hx->rbsp_buffer[0]);
866 hx->rbsp_buffer_size[0] = 0;
867 hx->rbsp_buffer_size[1] = 0;
869 if (i) av_freep(&h->thread_context[i]);
873 static void init_dequant8_coeff_table(H264Context *h){
875 const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
878 h->dequant8_coeff[i] = h->dequant8_buffer[i];
880 if(!memcmp(h->pps.scaling_matrix8[j], h->pps.scaling_matrix8[i], 64*sizeof(uint8_t))){
881 h->dequant8_coeff[i] = h->dequant8_buffer[j];
888 for(q=0; q<max_qp+1; q++){
892 h->dequant8_coeff[i][q][(x>>3)|((x&7)<<3)] =
893 ((uint32_t)dequant8_coeff_init[idx][ dequant8_coeff_init_scan[((x>>1)&12) | (x&3)] ] *
894 h->pps.scaling_matrix8[i][x]) << shift;
899 static void init_dequant4_coeff_table(H264Context *h){
901 const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
903 h->dequant4_coeff[i] = h->dequant4_buffer[i];
905 if(!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], 16*sizeof(uint8_t))){
906 h->dequant4_coeff[i] = h->dequant4_buffer[j];
913 for(q=0; q<max_qp+1; q++){
914 int shift = div6[q] + 2;
917 h->dequant4_coeff[i][q][(x>>2)|((x<<2)&0xF)] =
918 ((uint32_t)dequant4_coeff_init[idx][(x&1) + ((x>>2)&1)] *
919 h->pps.scaling_matrix4[i][x]) << shift;
924 static void init_dequant_tables(H264Context *h){
926 init_dequant4_coeff_table(h);
927 if(h->pps.transform_8x8_mode)
928 init_dequant8_coeff_table(h);
929 if(h->sps.transform_bypass){
932 h->dequant4_coeff[i][0][x] = 1<<6;
933 if(h->pps.transform_8x8_mode)
936 h->dequant8_coeff[i][0][x] = 1<<6;
941 int ff_h264_alloc_tables(H264Context *h){
942 MpegEncContext * const s = &h->s;
943 const int big_mb_num= s->mb_stride * (s->mb_height+1);
944 const int row_mb_num= 2*s->mb_stride*s->avctx->thread_count;
947 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->intra4x4_pred_mode, row_mb_num * 8 * sizeof(uint8_t), fail)
949 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->non_zero_count , big_mb_num * 48 * sizeof(uint8_t), fail)
950 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->slice_table_base , (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base), fail)
951 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->cbp_table, big_mb_num * sizeof(uint16_t), fail)
953 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t), fail)
954 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[0], 16*row_mb_num * sizeof(uint8_t), fail);
955 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[1], 16*row_mb_num * sizeof(uint8_t), fail);
956 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->direct_table, 4*big_mb_num * sizeof(uint8_t) , fail);
957 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->list_counts, big_mb_num * sizeof(uint8_t), fail)
959 memset(h->slice_table_base, -1, (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base));
960 h->slice_table= h->slice_table_base + s->mb_stride*2 + 1;
962 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2b_xy , big_mb_num * sizeof(uint32_t), fail);
963 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2br_xy , big_mb_num * sizeof(uint32_t), fail);
964 for(y=0; y<s->mb_height; y++){
965 for(x=0; x<s->mb_width; x++){
966 const int mb_xy= x + y*s->mb_stride;
967 const int b_xy = 4*x + 4*y*h->b_stride;
969 h->mb2b_xy [mb_xy]= b_xy;
970 h->mb2br_xy[mb_xy]= 8*(FMO ? mb_xy : (mb_xy % (2*s->mb_stride)));
974 s->obmc_scratchpad = NULL;
976 if(!h->dequant4_coeff[0])
977 init_dequant_tables(h);
986 * Mimic alloc_tables(), but for every context thread.
988 static void clone_tables(H264Context *dst, H264Context *src, int i){
989 MpegEncContext * const s = &src->s;
990 dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i*8*2*s->mb_stride;
991 dst->non_zero_count = src->non_zero_count;
992 dst->slice_table = src->slice_table;
993 dst->cbp_table = src->cbp_table;
994 dst->mb2b_xy = src->mb2b_xy;
995 dst->mb2br_xy = src->mb2br_xy;
996 dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
997 dst->mvd_table[0] = src->mvd_table[0] + i*8*2*s->mb_stride;
998 dst->mvd_table[1] = src->mvd_table[1] + i*8*2*s->mb_stride;
999 dst->direct_table = src->direct_table;
1000 dst->list_counts = src->list_counts;
1002 dst->s.obmc_scratchpad = NULL;
1003 ff_h264_pred_init(&dst->hpc, src->s.codec_id, src->sps.bit_depth_luma, src->sps.chroma_format_idc);
1008 * Allocate buffers which are not shared amongst multiple threads.
1010 static int context_init(H264Context *h){
1011 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[0], h->s.mb_width * 16*3 * sizeof(uint8_t)*2, fail)
1012 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[1], h->s.mb_width * 16*3 * sizeof(uint8_t)*2, fail)
1014 h->ref_cache[0][scan8[5 ]+1] = h->ref_cache[0][scan8[7 ]+1] = h->ref_cache[0][scan8[13]+1] =
1015 h->ref_cache[1][scan8[5 ]+1] = h->ref_cache[1][scan8[7 ]+1] = h->ref_cache[1][scan8[13]+1] = PART_NOT_AVAILABLE;
1019 return -1; // free_tables will clean up for us
1022 static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size);
1024 static av_cold void common_init(H264Context *h){
1025 MpegEncContext * const s = &h->s;
1027 s->width = s->avctx->width;
1028 s->height = s->avctx->height;
1029 s->codec_id= s->avctx->codec->id;
1031 ff_h264dsp_init(&h->h264dsp, 8, 1);
1032 ff_h264_pred_init(&h->hpc, s->codec_id, 8, 1);
1034 h->dequant_coeff_pps= -1;
1035 s->unrestricted_mv=1;
1037 dsputil_init(&s->dsp, s->avctx); // needed so that idct permutation is known early
1039 memset(h->pps.scaling_matrix4, 16, 6*16*sizeof(uint8_t));
1040 memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t));
1043 int ff_h264_decode_extradata(H264Context *h)
1045 AVCodecContext *avctx = h->s.avctx;
1047 if(avctx->extradata[0] == 1){
1048 int i, cnt, nalsize;
1049 unsigned char *p = avctx->extradata;
1053 if(avctx->extradata_size < 7) {
1054 av_log(avctx, AV_LOG_ERROR, "avcC too short\n");
1057 /* sps and pps in the avcC always have length coded with 2 bytes,
1058 so put a fake nal_length_size = 2 while parsing them */
1059 h->nal_length_size = 2;
1060 // Decode sps from avcC
1061 cnt = *(p+5) & 0x1f; // Number of sps
1063 for (i = 0; i < cnt; i++) {
1064 nalsize = AV_RB16(p) + 2;
1065 if (p - avctx->extradata + nalsize > avctx->extradata_size)
1067 if(decode_nal_units(h, p, nalsize) < 0) {
1068 av_log(avctx, AV_LOG_ERROR, "Decoding sps %d from avcC failed\n", i);
1073 // Decode pps from avcC
1074 cnt = *(p++); // Number of pps
1075 for (i = 0; i < cnt; i++) {
1076 nalsize = AV_RB16(p) + 2;
1077 if (p - avctx->extradata + nalsize > avctx->extradata_size)
1079 if (decode_nal_units(h, p, nalsize) < 0) {
1080 av_log(avctx, AV_LOG_ERROR, "Decoding pps %d from avcC failed\n", i);
1085 // Now store right nal length size, that will be use to parse all other nals
1086 h->nal_length_size = (avctx->extradata[4] & 0x03) + 1;
1089 if(decode_nal_units(h, avctx->extradata, avctx->extradata_size) < 0)
1095 av_cold int ff_h264_decode_init(AVCodecContext *avctx){
1096 H264Context *h= avctx->priv_data;
1097 MpegEncContext * const s = &h->s;
1099 MPV_decode_defaults(s);
1104 s->out_format = FMT_H264;
1105 s->workaround_bugs= avctx->workaround_bugs;
1108 // s->decode_mb= ff_h263_decode_mb;
1109 s->quarter_sample = 1;
1110 if(!avctx->has_b_frames)
1113 avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
1115 ff_h264_decode_init_vlc();
1118 h->sps.bit_depth_luma = avctx->bits_per_raw_sample = 8;
1120 h->thread_context[0] = h;
1121 h->outputed_poc = h->next_outputed_poc = INT_MIN;
1122 h->prev_poc_msb= 1<<16;
1124 ff_h264_reset_sei(h);
1125 if(avctx->codec_id == CODEC_ID_H264){
1126 if(avctx->ticks_per_frame == 1){
1127 s->avctx->time_base.den *=2;
1129 avctx->ticks_per_frame = 2;
1132 if(avctx->extradata_size > 0 && avctx->extradata &&
1133 ff_h264_decode_extradata(h))
1136 if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames < h->sps.num_reorder_frames){
1137 s->avctx->has_b_frames = h->sps.num_reorder_frames;
1144 #define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b)+(size))))
1145 static void copy_picture_range(Picture **to, Picture **from, int count, MpegEncContext *new_base, MpegEncContext *old_base)
1149 for (i=0; i<count; i++){
1150 assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) ||
1151 IN_RANGE(from[i], old_base->picture, sizeof(Picture) * old_base->picture_count) ||
1153 to[i] = REBASE_PICTURE(from[i], new_base, old_base);
1157 static void copy_parameter_set(void **to, void **from, int count, int size)
1161 for (i=0; i<count; i++){
1162 if (to[i] && !from[i]) av_freep(&to[i]);
1163 else if (from[i] && !to[i]) to[i] = av_malloc(size);
1165 if (from[i]) memcpy(to[i], from[i], size);
1169 static int decode_init_thread_copy(AVCodecContext *avctx){
1170 H264Context *h= avctx->priv_data;
1172 if (!avctx->is_copy) return 0;
1173 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1174 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
1179 #define copy_fields(to, from, start_field, end_field) memcpy(&to->start_field, &from->start_field, (char*)&to->end_field - (char*)&to->start_field)
1180 static int decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src){
1181 H264Context *h= dst->priv_data, *h1= src->priv_data;
1182 MpegEncContext * const s = &h->s, * const s1 = &h1->s;
1183 int inited = s->context_initialized, err;
1186 if(dst == src || !s1->context_initialized) return 0;
1188 err = ff_mpeg_update_thread_context(dst, src);
1191 //FIXME handle width/height changing
1193 for(i = 0; i < MAX_SPS_COUNT; i++)
1194 av_freep(h->sps_buffers + i);
1196 for(i = 0; i < MAX_PPS_COUNT; i++)
1197 av_freep(h->pps_buffers + i);
1199 memcpy(&h->s + 1, &h1->s + 1, sizeof(H264Context) - sizeof(MpegEncContext)); //copy all fields after MpegEnc
1200 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1201 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
1202 if (ff_h264_alloc_tables(h) < 0) {
1203 av_log(dst, AV_LOG_ERROR, "Could not allocate memory for h264\n");
1204 return AVERROR(ENOMEM);
1209 h->rbsp_buffer[i] = NULL;
1210 h->rbsp_buffer_size[i] = 0;
1213 h->thread_context[0] = h;
1215 // frame_start may not be called for the next thread (if it's decoding a bottom field)
1216 // so this has to be allocated here
1217 h->s.obmc_scratchpad = av_malloc(16*6*s->linesize);
1219 s->dsp.clear_blocks(h->mb);
1220 s->dsp.clear_blocks(h->mb+(24*16<<h->pixel_shift));
1223 //extradata/NAL handling
1224 h->is_avc = h1->is_avc;
1227 copy_parameter_set((void**)h->sps_buffers, (void**)h1->sps_buffers, MAX_SPS_COUNT, sizeof(SPS));
1229 copy_parameter_set((void**)h->pps_buffers, (void**)h1->pps_buffers, MAX_PPS_COUNT, sizeof(PPS));
1232 //Dequantization matrices
1233 //FIXME these are big - can they be only copied when PPS changes?
1234 copy_fields(h, h1, dequant4_buffer, dequant4_coeff);
1237 h->dequant4_coeff[i] = h->dequant4_buffer[0] + (h1->dequant4_coeff[i] - h1->dequant4_buffer[0]);
1240 h->dequant8_coeff[i] = h->dequant8_buffer[0] + (h1->dequant8_coeff[i] - h1->dequant8_buffer[0]);
1242 h->dequant_coeff_pps = h1->dequant_coeff_pps;
1245 copy_fields(h, h1, poc_lsb, redundant_pic_count);
1248 copy_fields(h, h1, ref_count, list_count);
1249 copy_fields(h, h1, ref_list, intra_gb);
1250 copy_fields(h, h1, short_ref, cabac_init_idc);
1252 copy_picture_range(h->short_ref, h1->short_ref, 32, s, s1);
1253 copy_picture_range(h->long_ref, h1->long_ref, 32, s, s1);
1254 copy_picture_range(h->delayed_pic, h1->delayed_pic, MAX_DELAYED_PIC_COUNT+2, s, s1);
1256 h->last_slice_type = h1->last_slice_type;
1258 if(!s->current_picture_ptr) return 0;
1261 err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
1262 h->prev_poc_msb = h->poc_msb;
1263 h->prev_poc_lsb = h->poc_lsb;
1265 h->prev_frame_num_offset= h->frame_num_offset;
1266 h->prev_frame_num = h->frame_num;
1267 h->outputed_poc = h->next_outputed_poc;
1272 int ff_h264_frame_start(H264Context *h){
1273 MpegEncContext * const s = &h->s;
1275 const int pixel_shift = h->pixel_shift;
1276 int thread_count = (s->avctx->active_thread_type & FF_THREAD_SLICE) ? s->avctx->thread_count : 1;
1278 if(MPV_frame_start(s, s->avctx) < 0)
1280 ff_er_frame_start(s);
1282 * MPV_frame_start uses pict_type to derive key_frame.
1283 * This is incorrect for H.264; IDR markings must be used.
1284 * Zero here; IDR markings per slice in frame or fields are ORed in later.
1285 * See decode_nal_units().
1287 s->current_picture_ptr->f.key_frame = 0;
1288 s->current_picture_ptr->mmco_reset= 0;
1290 assert(s->linesize && s->uvlinesize);
1292 for(i=0; i<16; i++){
1293 h->block_offset[i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 4*s->linesize*((scan8[i] - scan8[0])>>3);
1294 h->block_offset[48+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 8*s->linesize*((scan8[i] - scan8[0])>>3);
1296 for(i=0; i<16; i++){
1297 h->block_offset[16+i]=
1298 h->block_offset[32+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3);
1299 h->block_offset[48+16+i]=
1300 h->block_offset[48+32+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 8*s->uvlinesize*((scan8[i] - scan8[0])>>3);
1303 /* can't be in alloc_tables because linesize isn't known there.
1304 * FIXME: redo bipred weight to not require extra buffer? */
1305 for(i = 0; i < thread_count; i++)
1306 if(h->thread_context[i] && !h->thread_context[i]->s.obmc_scratchpad)
1307 h->thread_context[i]->s.obmc_scratchpad = av_malloc(16*6*s->linesize);
1309 /* some macroblocks can be accessed before they're available in case of lost slices, mbaff or threading*/
1310 memset(h->slice_table, -1, (s->mb_height*s->mb_stride-1) * sizeof(*h->slice_table));
1312 // s->decode = (s->flags & CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.f.reference /*|| h->contains_intra*/ || 1;
1314 // We mark the current picture as non-reference after allocating it, so
1315 // that if we break out due to an error it can be released automatically
1316 // in the next MPV_frame_start().
1317 // SVQ3 as well as most other codecs have only last/next/current and thus
1318 // get released even with set reference, besides SVQ3 and others do not
1319 // mark frames as reference later "naturally".
1320 if(s->codec_id != CODEC_ID_SVQ3)
1321 s->current_picture_ptr->f.reference = 0;
1323 s->current_picture_ptr->field_poc[0]=
1324 s->current_picture_ptr->field_poc[1]= INT_MAX;
1326 h->next_output_pic = NULL;
1328 assert(s->current_picture_ptr->long_ref==0);
1334 * Run setup operations that must be run after slice header decoding.
1335 * This includes finding the next displayed frame.
1337 * @param h h264 master context
1338 * @param setup_finished enough NALs have been read that we can call
1339 * ff_thread_finish_setup()
1341 static void decode_postinit(H264Context *h, int setup_finished){
1342 MpegEncContext * const s = &h->s;
1343 Picture *out = s->current_picture_ptr;
1344 Picture *cur = s->current_picture_ptr;
1345 int i, pics, out_of_order, out_idx;
1347 s->current_picture_ptr->f.qscale_type = FF_QSCALE_TYPE_H264;
1348 s->current_picture_ptr->f.pict_type = s->pict_type;
1350 if (h->next_output_pic) return;
1352 if (cur->field_poc[0]==INT_MAX || cur->field_poc[1]==INT_MAX) {
1353 //FIXME: if we have two PAFF fields in one packet, we can't start the next thread here.
1354 //If we have one field per packet, we can. The check in decode_nal_units() is not good enough
1355 //to find this yet, so we assume the worst for now.
1356 //if (setup_finished)
1357 // ff_thread_finish_setup(s->avctx);
1361 cur->f.interlaced_frame = 0;
1362 cur->f.repeat_pict = 0;
1364 /* Signal interlacing information externally. */
1365 /* Prioritize picture timing SEI information over used decoding process if it exists. */
1367 if(h->sps.pic_struct_present_flag){
1368 switch (h->sei_pic_struct)
1370 case SEI_PIC_STRUCT_FRAME:
1372 case SEI_PIC_STRUCT_TOP_FIELD:
1373 case SEI_PIC_STRUCT_BOTTOM_FIELD:
1374 cur->f.interlaced_frame = 1;
1376 case SEI_PIC_STRUCT_TOP_BOTTOM:
1377 case SEI_PIC_STRUCT_BOTTOM_TOP:
1378 if (FIELD_OR_MBAFF_PICTURE)
1379 cur->f.interlaced_frame = 1;
1381 // try to flag soft telecine progressive
1382 cur->f.interlaced_frame = h->prev_interlaced_frame;
1384 case SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1385 case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1386 // Signal the possibility of telecined film externally (pic_struct 5,6)
1387 // From these hints, let the applications decide if they apply deinterlacing.
1388 cur->f.repeat_pict = 1;
1390 case SEI_PIC_STRUCT_FRAME_DOUBLING:
1391 // Force progressive here, as doubling interlaced frame is a bad idea.
1392 cur->f.repeat_pict = 2;
1394 case SEI_PIC_STRUCT_FRAME_TRIPLING:
1395 cur->f.repeat_pict = 4;
1399 if ((h->sei_ct_type & 3) && h->sei_pic_struct <= SEI_PIC_STRUCT_BOTTOM_TOP)
1400 cur->f.interlaced_frame = (h->sei_ct_type & (1 << 1)) != 0;
1402 /* Derive interlacing flag from used decoding process. */
1403 cur->f.interlaced_frame = FIELD_OR_MBAFF_PICTURE;
1405 h->prev_interlaced_frame = cur->f.interlaced_frame;
1407 if (cur->field_poc[0] != cur->field_poc[1]){
1408 /* Derive top_field_first from field pocs. */
1409 cur->f.top_field_first = cur->field_poc[0] < cur->field_poc[1];
1411 if (cur->f.interlaced_frame || h->sps.pic_struct_present_flag) {
1412 /* Use picture timing SEI information. Even if it is a information of a past frame, better than nothing. */
1413 if(h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM
1414 || h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1415 cur->f.top_field_first = 1;
1417 cur->f.top_field_first = 0;
1419 /* Most likely progressive */
1420 cur->f.top_field_first = 0;
1424 //FIXME do something with unavailable reference frames
1426 /* Sort B-frames into display order */
1428 if(h->sps.bitstream_restriction_flag
1429 && s->avctx->has_b_frames < h->sps.num_reorder_frames){
1430 s->avctx->has_b_frames = h->sps.num_reorder_frames;
1434 if( s->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT
1435 && !h->sps.bitstream_restriction_flag){
1436 s->avctx->has_b_frames= MAX_DELAYED_PIC_COUNT;
1441 while(h->delayed_pic[pics]) pics++;
1443 assert(pics <= MAX_DELAYED_PIC_COUNT);
1445 h->delayed_pic[pics++] = cur;
1446 if (cur->f.reference == 0)
1447 cur->f.reference = DELAYED_PIC_REF;
1449 out = h->delayed_pic[0];
1451 for (i = 1; h->delayed_pic[i] && !h->delayed_pic[i]->f.key_frame && !h->delayed_pic[i]->mmco_reset; i++)
1452 if(h->delayed_pic[i]->poc < out->poc){
1453 out = h->delayed_pic[i];
1456 if (s->avctx->has_b_frames == 0 && (h->delayed_pic[0]->f.key_frame || h->delayed_pic[0]->mmco_reset))
1457 h->next_outputed_poc= INT_MIN;
1458 out_of_order = out->poc < h->next_outputed_poc;
1460 if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames >= h->sps.num_reorder_frames)
1462 else if((out_of_order && pics-1 == s->avctx->has_b_frames && s->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT)
1464 ((h->next_outputed_poc != INT_MIN && out->poc > h->next_outputed_poc + 2)
1465 || cur->f.pict_type == AV_PICTURE_TYPE_B)))
1468 s->avctx->has_b_frames++;
1471 if(out_of_order || pics > s->avctx->has_b_frames){
1472 out->f.reference &= ~DELAYED_PIC_REF;
1473 out->owner2 = s; // for frame threading, the owner must be the second field's thread
1474 // or else the first thread can release the picture and reuse it unsafely
1475 for(i=out_idx; h->delayed_pic[i]; i++)
1476 h->delayed_pic[i] = h->delayed_pic[i+1];
1478 if(!out_of_order && pics > s->avctx->has_b_frames){
1479 h->next_output_pic = out;
1480 if (out_idx == 0 && h->delayed_pic[0] && (h->delayed_pic[0]->f.key_frame || h->delayed_pic[0]->mmco_reset)) {
1481 h->next_outputed_poc = INT_MIN;
1483 h->next_outputed_poc = out->poc;
1485 av_log(s->avctx, AV_LOG_DEBUG, "no picture\n");
1489 ff_thread_finish_setup(s->avctx);
1492 static av_always_inline void backup_mb_border(H264Context *h, uint8_t *src_y,
1493 uint8_t *src_cb, uint8_t *src_cr,
1494 int linesize, int uvlinesize, int simple)
1496 MpegEncContext * const s = &h->s;
1497 uint8_t *top_border;
1499 const int pixel_shift = h->pixel_shift;
1500 int chroma444 = CHROMA444;
1501 int chroma422 = CHROMA422;
1504 src_cb -= uvlinesize;
1505 src_cr -= uvlinesize;
1507 if(!simple && FRAME_MBAFF){
1510 top_border = h->top_borders[0][s->mb_x];
1511 AV_COPY128(top_border, src_y + 15*linesize);
1513 AV_COPY128(top_border+16, src_y+15*linesize+16);
1514 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1517 AV_COPY128(top_border+32, src_cb + 15*uvlinesize);
1518 AV_COPY128(top_border+48, src_cb + 15*uvlinesize+16);
1519 AV_COPY128(top_border+64, src_cr + 15*uvlinesize);
1520 AV_COPY128(top_border+80, src_cr + 15*uvlinesize+16);
1522 AV_COPY128(top_border+16, src_cb + 15*uvlinesize);
1523 AV_COPY128(top_border+32, src_cr + 15*uvlinesize);
1525 } else if(chroma422) {
1527 AV_COPY128(top_border+32, src_cb + 15*uvlinesize);
1528 AV_COPY128(top_border+48, src_cr + 15*uvlinesize);
1530 AV_COPY64(top_border+16, src_cb + 15*uvlinesize);
1531 AV_COPY64(top_border+24, src_cr + 15*uvlinesize);
1535 AV_COPY128(top_border+32, src_cb+7*uvlinesize);
1536 AV_COPY128(top_border+48, src_cr+7*uvlinesize);
1538 AV_COPY64(top_border+16, src_cb+7*uvlinesize);
1539 AV_COPY64(top_border+24, src_cr+7*uvlinesize);
1550 top_border = h->top_borders[top_idx][s->mb_x];
1551 // There are two lines saved, the line above the the top macroblock of a pair,
1552 // and the line above the bottom macroblock
1553 AV_COPY128(top_border, src_y + 16*linesize);
1555 AV_COPY128(top_border+16, src_y+16*linesize+16);
1557 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1560 AV_COPY128(top_border+32, src_cb + 16*linesize);
1561 AV_COPY128(top_border+48, src_cb + 16*linesize+16);
1562 AV_COPY128(top_border+64, src_cr + 16*linesize);
1563 AV_COPY128(top_border+80, src_cr + 16*linesize+16);
1565 AV_COPY128(top_border+16, src_cb + 16*linesize);
1566 AV_COPY128(top_border+32, src_cr + 16*linesize);
1568 } else if(chroma422) {
1570 AV_COPY128(top_border+32, src_cb+16*uvlinesize);
1571 AV_COPY128(top_border+48, src_cr+16*uvlinesize);
1573 AV_COPY64(top_border+16, src_cb+16*uvlinesize);
1574 AV_COPY64(top_border+24, src_cr+16*uvlinesize);
1578 AV_COPY128(top_border+32, src_cb+8*uvlinesize);
1579 AV_COPY128(top_border+48, src_cr+8*uvlinesize);
1581 AV_COPY64(top_border+16, src_cb+8*uvlinesize);
1582 AV_COPY64(top_border+24, src_cr+8*uvlinesize);
1588 static av_always_inline void xchg_mb_border(H264Context *h, uint8_t *src_y,
1589 uint8_t *src_cb, uint8_t *src_cr,
1590 int linesize, int uvlinesize,
1591 int xchg, int chroma444,
1592 int simple, int pixel_shift){
1593 MpegEncContext * const s = &h->s;
1594 int deblock_topleft;
1597 uint8_t *top_border_m1;
1598 uint8_t *top_border;
1600 if(!simple && FRAME_MBAFF){
1605 top_idx = MB_MBAFF ? 0 : 1;
1609 if(h->deblocking_filter == 2) {
1610 deblock_topleft = h->slice_table[h->mb_xy - 1 - s->mb_stride] == h->slice_num;
1611 deblock_top = h->top_type;
1613 deblock_topleft = (s->mb_x > 0);
1614 deblock_top = (s->mb_y > !!MB_FIELD);
1617 src_y -= linesize + 1 + pixel_shift;
1618 src_cb -= uvlinesize + 1 + pixel_shift;
1619 src_cr -= uvlinesize + 1 + pixel_shift;
1621 top_border_m1 = h->top_borders[top_idx][s->mb_x-1];
1622 top_border = h->top_borders[top_idx][s->mb_x];
1624 #define XCHG(a,b,xchg)\
1627 AV_SWAP64(b+0,a+0);\
1628 AV_SWAP64(b+8,a+8);\
1633 if (xchg) AV_SWAP64(b,a);\
1634 else AV_COPY64(b,a);
1637 if(deblock_topleft){
1638 XCHG(top_border_m1 + (8 << pixel_shift), src_y - (7 << pixel_shift), 1);
1640 XCHG(top_border + (0 << pixel_shift), src_y + (1 << pixel_shift), xchg);
1641 XCHG(top_border + (8 << pixel_shift), src_y + (9 << pixel_shift), 1);
1642 if(s->mb_x+1 < s->mb_width){
1643 XCHG(h->top_borders[top_idx][s->mb_x+1], src_y + (17 << pixel_shift), 1);
1646 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1648 if(deblock_topleft){
1649 XCHG(top_border_m1 + (24 << pixel_shift), src_cb - (7 << pixel_shift), 1);
1650 XCHG(top_border_m1 + (40 << pixel_shift), src_cr - (7 << pixel_shift), 1);
1652 XCHG(top_border + (16 << pixel_shift), src_cb + (1 << pixel_shift), xchg);
1653 XCHG(top_border + (24 << pixel_shift), src_cb + (9 << pixel_shift), 1);
1654 XCHG(top_border + (32 << pixel_shift), src_cr + (1 << pixel_shift), xchg);
1655 XCHG(top_border + (40 << pixel_shift), src_cr + (9 << pixel_shift), 1);
1656 if(s->mb_x+1 < s->mb_width){
1657 XCHG(h->top_borders[top_idx][s->mb_x+1] + (16 << pixel_shift), src_cb + (17 << pixel_shift), 1);
1658 XCHG(h->top_borders[top_idx][s->mb_x+1] + (32 << pixel_shift), src_cr + (17 << pixel_shift), 1);
1662 if(deblock_topleft){
1663 XCHG(top_border_m1 + (16 << pixel_shift), src_cb - (7 << pixel_shift), 1);
1664 XCHG(top_border_m1 + (24 << pixel_shift), src_cr - (7 << pixel_shift), 1);
1666 XCHG(top_border + (16 << pixel_shift), src_cb+1+pixel_shift, 1);
1667 XCHG(top_border + (24 << pixel_shift), src_cr+1+pixel_shift, 1);
1673 static av_always_inline int dctcoef_get(DCTELEM *mb, int high_bit_depth, int index) {
1674 if (high_bit_depth) {
1675 return AV_RN32A(((int32_t*)mb) + index);
1677 return AV_RN16A(mb + index);
1680 static av_always_inline void dctcoef_set(DCTELEM *mb, int high_bit_depth, int index, int value) {
1681 if (high_bit_depth) {
1682 AV_WN32A(((int32_t*)mb) + index, value);
1684 AV_WN16A(mb + index, value);
1687 static av_always_inline void hl_decode_mb_predict_luma(H264Context *h, int mb_type, int is_h264, int simple, int transform_bypass,
1688 int pixel_shift, int *block_offset, int linesize, uint8_t *dest_y, int p)
1690 MpegEncContext * const s = &h->s;
1691 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1692 void (*idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
1694 int qscale = p == 0 ? s->qscale : h->chroma_qp[p-1];
1695 block_offset += 16*p;
1696 if(IS_INTRA4x4(mb_type)){
1697 if(simple || !s->encoding){
1698 if(IS_8x8DCT(mb_type)){
1699 if(transform_bypass){
1701 idct_add = s->dsp.add_pixels8;
1703 idct_dc_add = h->h264dsp.h264_idct8_dc_add;
1704 idct_add = h->h264dsp.h264_idct8_add;
1706 for(i=0; i<16; i+=4){
1707 uint8_t * const ptr= dest_y + block_offset[i];
1708 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
1709 if(transform_bypass && h->sps.profile_idc==244 && dir<=1){
1710 h->hpc.pred8x8l_add[dir](ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1712 const int nnz = h->non_zero_count_cache[ scan8[i+p*16] ];
1713 h->hpc.pred8x8l[ dir ](ptr, (h->topleft_samples_available<<i)&0x8000,
1714 (h->topright_samples_available<<i)&0x4000, linesize);
1716 if(nnz == 1 && dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1717 idct_dc_add(ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1719 idct_add (ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1724 if(transform_bypass){
1726 idct_add = s->dsp.add_pixels4;
1728 idct_dc_add = h->h264dsp.h264_idct_dc_add;
1729 idct_add = h->h264dsp.h264_idct_add;
1731 for(i=0; i<16; i++){
1732 uint8_t * const ptr= dest_y + block_offset[i];
1733 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
1735 if(transform_bypass && h->sps.profile_idc==244 && dir<=1){
1736 h->hpc.pred4x4_add[dir](ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1741 if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
1742 const int topright_avail= (h->topright_samples_available<<i)&0x8000;
1743 assert(s->mb_y || linesize <= block_offset[i]);
1744 if(!topright_avail){
1746 tr_high= ((uint16_t*)ptr)[3 - linesize/2]*0x0001000100010001ULL;
1747 topright= (uint8_t*) &tr_high;
1749 tr= ptr[3 - linesize]*0x01010101u;
1750 topright= (uint8_t*) &tr;
1753 topright= ptr + (4 << pixel_shift) - linesize;
1757 h->hpc.pred4x4[ dir ](ptr, topright, linesize);
1758 nnz = h->non_zero_count_cache[ scan8[i+p*16] ];
1761 if(nnz == 1 && dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1762 idct_dc_add(ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1764 idct_add (ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1766 ff_svq3_add_idct_c(ptr, h->mb + i*16+p*256, linesize, qscale, 0);
1773 h->hpc.pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);
1775 if(h->non_zero_count_cache[ scan8[LUMA_DC_BLOCK_INDEX+p] ]){
1776 if(!transform_bypass)
1777 h->h264dsp.h264_luma_dc_dequant_idct(h->mb+(p*256 << pixel_shift), h->mb_luma_dc[p], h->dequant4_coeff[p][qscale][0]);
1779 static const uint8_t dc_mapping[16] = { 0*16, 1*16, 4*16, 5*16, 2*16, 3*16, 6*16, 7*16,
1780 8*16, 9*16,12*16,13*16,10*16,11*16,14*16,15*16};
1781 for(i = 0; i < 16; i++)
1782 dctcoef_set(h->mb+p*256, pixel_shift, dc_mapping[i], dctcoef_get(h->mb_luma_dc[p], pixel_shift, i));
1786 ff_svq3_luma_dc_dequant_idct_c(h->mb+p*256, h->mb_luma_dc[p], qscale);
1790 static av_always_inline void hl_decode_mb_idct_luma(H264Context *h, int mb_type, int is_h264, int simple, int transform_bypass,
1791 int pixel_shift, int *block_offset, int linesize, uint8_t *dest_y, int p)
1793 MpegEncContext * const s = &h->s;
1794 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1796 block_offset += 16*p;
1797 if(!IS_INTRA4x4(mb_type)){
1799 if(IS_INTRA16x16(mb_type)){
1800 if(transform_bypass){
1801 if(h->sps.profile_idc==244 && (h->intra16x16_pred_mode==VERT_PRED8x8 || h->intra16x16_pred_mode==HOR_PRED8x8)){
1802 h->hpc.pred16x16_add[h->intra16x16_pred_mode](dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize);
1804 for(i=0; i<16; i++){
1805 if(h->non_zero_count_cache[ scan8[i+p*16] ] || dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1806 s->dsp.add_pixels4(dest_y + block_offset[i], h->mb + (i*16+p*256 << pixel_shift), linesize);
1810 h->h264dsp.h264_idct_add16intra(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1812 }else if(h->cbp&15){
1813 if(transform_bypass){
1814 const int di = IS_8x8DCT(mb_type) ? 4 : 1;
1815 idct_add= IS_8x8DCT(mb_type) ? s->dsp.add_pixels8 : s->dsp.add_pixels4;
1816 for(i=0; i<16; i+=di){
1817 if(h->non_zero_count_cache[ scan8[i+p*16] ]){
1818 idct_add(dest_y + block_offset[i], h->mb + (i*16+p*256 << pixel_shift), linesize);
1822 if(IS_8x8DCT(mb_type)){
1823 h->h264dsp.h264_idct8_add4(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1825 h->h264dsp.h264_idct_add16(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1830 for(i=0; i<16; i++){
1831 if(h->non_zero_count_cache[ scan8[i+p*16] ] || h->mb[i*16+p*256]){ //FIXME benchmark weird rule, & below
1832 uint8_t * const ptr= dest_y + block_offset[i];
1833 ff_svq3_add_idct_c(ptr, h->mb + i*16 + p*256, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0);
1840 static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple, int pixel_shift)
1842 MpegEncContext * const s = &h->s;
1843 const int mb_x= s->mb_x;
1844 const int mb_y= s->mb_y;
1845 const int mb_xy= h->mb_xy;
1846 const int mb_type = s->current_picture.f.mb_type[mb_xy];
1847 uint8_t *dest_y, *dest_cb, *dest_cr;
1848 int linesize, uvlinesize /*dct_offset*/;
1850 int *block_offset = &h->block_offset[0];
1851 const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass);
1852 /* is_h264 should always be true if SVQ3 is disabled. */
1853 const int is_h264 = !CONFIG_SVQ3_DECODER || simple || s->codec_id == CODEC_ID_H264;
1854 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1855 const int block_h = 16 >> s->chroma_y_shift;
1856 const int chroma422 = CHROMA422;
1858 dest_y = s->current_picture.f.data[0] + ((mb_x << pixel_shift) + mb_y * s->linesize ) * 16;
1859 dest_cb = s->current_picture.f.data[1] + (mb_x << pixel_shift)*8 + mb_y * s->uvlinesize * block_h;
1860 dest_cr = s->current_picture.f.data[2] + (mb_x << pixel_shift)*8 + mb_y * s->uvlinesize * block_h;
1862 s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + (64 << pixel_shift), s->linesize, 4);
1863 s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + (64 << pixel_shift), dest_cr - dest_cb, 2);
1865 h->list_counts[mb_xy]= h->list_count;
1867 if (!simple && MB_FIELD) {
1868 linesize = h->mb_linesize = s->linesize * 2;
1869 uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
1870 block_offset = &h->block_offset[48];
1871 if(mb_y&1){ //FIXME move out of this function?
1872 dest_y -= s->linesize*15;
1873 dest_cb-= s->uvlinesize * (block_h - 1);
1874 dest_cr-= s->uvlinesize * (block_h - 1);
1878 for(list=0; list<h->list_count; list++){
1879 if(!USES_LIST(mb_type, list))
1881 if(IS_16X16(mb_type)){
1882 int8_t *ref = &h->ref_cache[list][scan8[0]];
1883 fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);
1885 for(i=0; i<16; i+=4){
1886 int ref = h->ref_cache[list][scan8[i]];
1888 fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);
1894 linesize = h->mb_linesize = s->linesize;
1895 uvlinesize = h->mb_uvlinesize = s->uvlinesize;
1896 // dct_offset = s->linesize * 16;
1899 if (!simple && IS_INTRA_PCM(mb_type)) {
1901 const int bit_depth = h->sps.bit_depth_luma;
1904 init_get_bits(&gb, (uint8_t*)h->mb, 384*bit_depth);
1906 for (i = 0; i < 16; i++) {
1907 uint16_t *tmp_y = (uint16_t*)(dest_y + i*linesize);
1908 for (j = 0; j < 16; j++)
1909 tmp_y[j] = get_bits(&gb, bit_depth);
1911 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1912 if (!h->sps.chroma_format_idc) {
1913 for (i = 0; i < block_h; i++) {
1914 uint16_t *tmp_cb = (uint16_t*)(dest_cb + i*uvlinesize);
1915 for (j = 0; j < 8; j++) {
1916 tmp_cb[j] = 1 << (bit_depth - 1);
1919 for (i = 0; i < block_h; i++) {
1920 uint16_t *tmp_cr = (uint16_t*)(dest_cr + i*uvlinesize);
1921 for (j = 0; j < 8; j++) {
1922 tmp_cr[j] = 1 << (bit_depth - 1);
1926 for (i = 0; i < block_h; i++) {
1927 uint16_t *tmp_cb = (uint16_t*)(dest_cb + i*uvlinesize);
1928 for (j = 0; j < 8; j++)
1929 tmp_cb[j] = get_bits(&gb, bit_depth);
1931 for (i = 0; i < block_h; i++) {
1932 uint16_t *tmp_cr = (uint16_t*)(dest_cr + i*uvlinesize);
1933 for (j = 0; j < 8; j++)
1934 tmp_cr[j] = get_bits(&gb, bit_depth);
1939 for (i=0; i<16; i++) {
1940 memcpy(dest_y + i* linesize, h->mb + i*8, 16);
1942 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1943 if (!h->sps.chroma_format_idc) {
1944 for (i = 0; i < block_h; i++) {
1945 memset(dest_cb + i*uvlinesize, 128, 8);
1946 memset(dest_cr + i*uvlinesize, 128, 8);
1949 for (i = 0; i < block_h; i++) {
1950 memcpy(dest_cb + i*uvlinesize, h->mb + 128 + i*4, 8);
1951 memcpy(dest_cr + i*uvlinesize, h->mb + 160 + i*4, 8);
1957 if(IS_INTRA(mb_type)){
1958 if(h->deblocking_filter)
1959 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, 0, simple, pixel_shift);
1961 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1962 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
1963 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
1966 hl_decode_mb_predict_luma(h, mb_type, is_h264, simple, transform_bypass, pixel_shift, block_offset, linesize, dest_y, 0);
1968 if(h->deblocking_filter)
1969 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, 0, simple, pixel_shift);
1972 hl_motion_422(h, dest_y, dest_cb, dest_cr,
1973 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
1974 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
1975 h->h264dsp.weight_h264_pixels_tab,
1976 h->h264dsp.biweight_h264_pixels_tab,
1979 hl_motion_420(h, dest_y, dest_cb, dest_cr,
1980 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
1981 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
1982 h->h264dsp.weight_h264_pixels_tab,
1983 h->h264dsp.biweight_h264_pixels_tab,
1988 hl_decode_mb_idct_luma(h, mb_type, is_h264, simple, transform_bypass, pixel_shift, block_offset, linesize, dest_y, 0);
1990 if((simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) && (h->cbp&0x30)){
1991 uint8_t *dest[2] = {dest_cb, dest_cr};
1992 if(transform_bypass){
1993 if(IS_INTRA(mb_type) && h->sps.profile_idc==244 && (h->chroma_pred_mode==VERT_PRED8x8 || h->chroma_pred_mode==HOR_PRED8x8)){
1994 h->hpc.pred8x8_add[h->chroma_pred_mode](dest[0], block_offset + 16, h->mb + (16*16*1 << pixel_shift), uvlinesize);
1995 h->hpc.pred8x8_add[h->chroma_pred_mode](dest[1], block_offset + 32, h->mb + (16*16*2 << pixel_shift), uvlinesize);
1997 idct_add = s->dsp.add_pixels4;
1999 for(i=j*16; i<j*16+4; i++){
2000 if(h->non_zero_count_cache[ scan8[i] ] || dctcoef_get(h->mb, pixel_shift, i*16))
2001 idct_add (dest[j-1] + block_offset[i], h->mb + (i*16 << pixel_shift), uvlinesize);
2004 for(i=j*16+4; i<j*16+8; i++){
2005 if(h->non_zero_count_cache[ scan8[i] ] || dctcoef_get(h->mb, pixel_shift, i*16))
2006 idct_add (dest[j-1] + block_offset[i+4], h->mb + (i*16 << pixel_shift), uvlinesize);
2015 qp[0] = h->chroma_qp[0] + 3;
2016 qp[1] = h->chroma_qp[1] + 3;
2018 qp[0] = h->chroma_qp[0];
2019 qp[1] = h->chroma_qp[1];
2021 if(h->non_zero_count_cache[ scan8[CHROMA_DC_BLOCK_INDEX+0] ])
2022 h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16*16*1 << pixel_shift), h->dequant4_coeff[IS_INTRA(mb_type) ? 1:4][qp[0]][0]);
2023 if(h->non_zero_count_cache[ scan8[CHROMA_DC_BLOCK_INDEX+1] ])
2024 h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16*16*2 << pixel_shift), h->dequant4_coeff[IS_INTRA(mb_type) ? 2:5][qp[1]][0]);
2025 h->h264dsp.h264_idct_add8(dest, block_offset,
2027 h->non_zero_count_cache);
2029 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]);
2030 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]);
2032 for(i=j*16; i<j*16+4; i++){
2033 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2034 uint8_t * const ptr= dest[j-1] + block_offset[i];
2035 ff_svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, ff_h264_chroma_qp[0][s->qscale + 12] - 12, 2);
2043 if(h->cbp || IS_INTRA(mb_type))
2045 s->dsp.clear_blocks(h->mb);
2046 s->dsp.clear_blocks(h->mb+(24*16<<pixel_shift));
2050 static av_always_inline void hl_decode_mb_444_internal(H264Context *h, int simple, int pixel_shift){
2051 MpegEncContext * const s = &h->s;
2052 const int mb_x= s->mb_x;
2053 const int mb_y= s->mb_y;
2054 const int mb_xy= h->mb_xy;
2055 const int mb_type = s->current_picture.f.mb_type[mb_xy];
2059 int *block_offset = &h->block_offset[0];
2060 const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass);
2061 const int plane_count = (simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) ? 3 : 1;
2063 for (p = 0; p < plane_count; p++)
2065 dest[p] = s->current_picture.f.data[p] + ((mb_x << pixel_shift) + mb_y * s->linesize) * 16;
2066 s->dsp.prefetch(dest[p] + (s->mb_x&3)*4*s->linesize + (64 << pixel_shift), s->linesize, 4);
2069 h->list_counts[mb_xy]= h->list_count;
2071 if (!simple && MB_FIELD) {
2072 linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize * 2;
2073 block_offset = &h->block_offset[48];
2074 if(mb_y&1) //FIXME move out of this function?
2075 for (p = 0; p < 3; p++)
2076 dest[p] -= s->linesize*15;
2079 for(list=0; list<h->list_count; list++){
2080 if(!USES_LIST(mb_type, list))
2082 if(IS_16X16(mb_type)){
2083 int8_t *ref = &h->ref_cache[list][scan8[0]];
2084 fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);
2086 for(i=0; i<16; i+=4){
2087 int ref = h->ref_cache[list][scan8[i]];
2089 fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);
2095 linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize;
2098 if (!simple && IS_INTRA_PCM(mb_type)) {
2100 const int bit_depth = h->sps.bit_depth_luma;
2102 init_get_bits(&gb, (uint8_t*)h->mb, 768*bit_depth);
2104 for (p = 0; p < plane_count; p++) {
2105 for (i = 0; i < 16; i++) {
2106 uint16_t *tmp = (uint16_t*)(dest[p] + i*linesize);
2107 for (j = 0; j < 16; j++)
2108 tmp[j] = get_bits(&gb, bit_depth);
2112 for (p = 0; p < plane_count; p++) {
2113 for (i = 0; i < 16; i++) {
2114 memcpy(dest[p] + i*linesize, h->mb + p*128 + i*8, 16);
2119 if(IS_INTRA(mb_type)){
2120 if(h->deblocking_filter)
2121 xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, linesize, 1, 1, simple, pixel_shift);
2123 for (p = 0; p < plane_count; p++)
2124 hl_decode_mb_predict_luma(h, mb_type, 1, simple, transform_bypass, pixel_shift, block_offset, linesize, dest[p], p);
2126 if(h->deblocking_filter)
2127 xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, linesize, 0, 1, simple, pixel_shift);
2129 hl_motion(h, dest[0], dest[1], dest[2],
2130 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
2131 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
2132 h->h264dsp.weight_h264_pixels_tab,
2133 h->h264dsp.biweight_h264_pixels_tab, pixel_shift, 3);
2136 for (p = 0; p < plane_count; p++)
2137 hl_decode_mb_idct_luma(h, mb_type, 1, simple, transform_bypass, pixel_shift, block_offset, linesize, dest[p], p);
2139 if(h->cbp || IS_INTRA(mb_type))
2141 s->dsp.clear_blocks(h->mb);
2142 s->dsp.clear_blocks(h->mb+(24*16<<pixel_shift));
2147 * Process a macroblock; this case avoids checks for expensive uncommon cases.
2149 #define hl_decode_mb_simple(sh, bits) \
2150 static void hl_decode_mb_simple_ ## bits(H264Context *h){ \
2151 hl_decode_mb_internal(h, 1, sh); \
2153 hl_decode_mb_simple(0, 8);
2154 hl_decode_mb_simple(1, 16);
2157 * Process a macroblock; this handles edge cases, such as interlacing.
2159 static void av_noinline hl_decode_mb_complex(H264Context *h){
2160 hl_decode_mb_internal(h, 0, h->pixel_shift);
2163 static void av_noinline hl_decode_mb_444_complex(H264Context *h){
2164 hl_decode_mb_444_internal(h, 0, h->pixel_shift);
2167 static void av_noinline hl_decode_mb_444_simple(H264Context *h){
2168 hl_decode_mb_444_internal(h, 1, 0);
2171 void ff_h264_hl_decode_mb(H264Context *h){
2172 MpegEncContext * const s = &h->s;
2173 const int mb_xy= h->mb_xy;
2174 const int mb_type = s->current_picture.f.mb_type[mb_xy];
2175 int is_complex = CONFIG_SMALL || h->is_complex || IS_INTRA_PCM(mb_type) || s->qscale == 0;
2178 if(is_complex || h->pixel_shift)
2179 hl_decode_mb_444_complex(h);
2181 hl_decode_mb_444_simple(h);
2182 } else if (is_complex) {
2183 hl_decode_mb_complex(h);
2184 } else if (h->pixel_shift) {
2185 hl_decode_mb_simple_16(h);
2187 hl_decode_mb_simple_8(h);
2190 static int pred_weight_table(H264Context *h){
2191 MpegEncContext * const s = &h->s;
2193 int luma_def, chroma_def;
2196 h->use_weight_chroma= 0;
2197 h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
2198 if(h->sps.chroma_format_idc)
2199 h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
2200 luma_def = 1<<h->luma_log2_weight_denom;
2201 chroma_def = 1<<h->chroma_log2_weight_denom;
2203 for(list=0; list<2; list++){
2204 h->luma_weight_flag[list] = 0;
2205 h->chroma_weight_flag[list] = 0;
2206 for(i=0; i<h->ref_count[list]; i++){
2207 int luma_weight_flag, chroma_weight_flag;
2209 luma_weight_flag= get_bits1(&s->gb);
2210 if(luma_weight_flag){
2211 h->luma_weight[i][list][0]= get_se_golomb(&s->gb);
2212 h->luma_weight[i][list][1]= get_se_golomb(&s->gb);
2213 if( h->luma_weight[i][list][0] != luma_def
2214 || h->luma_weight[i][list][1] != 0) {
2216 h->luma_weight_flag[list]= 1;
2219 h->luma_weight[i][list][0]= luma_def;
2220 h->luma_weight[i][list][1]= 0;
2223 if(h->sps.chroma_format_idc){
2224 chroma_weight_flag= get_bits1(&s->gb);
2225 if(chroma_weight_flag){
2228 h->chroma_weight[i][list][j][0]= get_se_golomb(&s->gb);
2229 h->chroma_weight[i][list][j][1]= get_se_golomb(&s->gb);
2230 if( h->chroma_weight[i][list][j][0] != chroma_def
2231 || h->chroma_weight[i][list][j][1] != 0) {
2232 h->use_weight_chroma= 1;
2233 h->chroma_weight_flag[list]= 1;
2239 h->chroma_weight[i][list][j][0]= chroma_def;
2240 h->chroma_weight[i][list][j][1]= 0;
2245 if(h->slice_type_nos != AV_PICTURE_TYPE_B) break;
2247 h->use_weight= h->use_weight || h->use_weight_chroma;
2252 * Initialize implicit_weight table.
2253 * @param field 0/1 initialize the weight for interlaced MBAFF
2254 * -1 initializes the rest
2256 static void implicit_weight_table(H264Context *h, int field){
2257 MpegEncContext * const s = &h->s;
2258 int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
2260 for (i = 0; i < 2; i++) {
2261 h->luma_weight_flag[i] = 0;
2262 h->chroma_weight_flag[i] = 0;
2266 if (s->picture_structure == PICT_FRAME) {
2267 cur_poc = s->current_picture_ptr->poc;
2269 cur_poc = s->current_picture_ptr->field_poc[s->picture_structure - 1];
2271 if( h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF
2272 && h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){
2274 h->use_weight_chroma= 0;
2278 ref_count0= h->ref_count[0];
2279 ref_count1= h->ref_count[1];
2281 cur_poc = s->current_picture_ptr->field_poc[field];
2283 ref_count0= 16+2*h->ref_count[0];
2284 ref_count1= 16+2*h->ref_count[1];
2288 h->use_weight_chroma= 2;
2289 h->luma_log2_weight_denom= 5;
2290 h->chroma_log2_weight_denom= 5;
2292 for(ref0=ref_start; ref0 < ref_count0; ref0++){
2293 int poc0 = h->ref_list[0][ref0].poc;
2294 for(ref1=ref_start; ref1 < ref_count1; ref1++){
2296 if (!h->ref_list[0][ref0].long_ref && !h->ref_list[1][ref1].long_ref) {
2297 int poc1 = h->ref_list[1][ref1].poc;
2298 int td = av_clip(poc1 - poc0, -128, 127);
2300 int tb = av_clip(cur_poc - poc0, -128, 127);
2301 int tx = (16384 + (FFABS(td) >> 1)) / td;
2302 int dist_scale_factor = (tb*tx + 32) >> 8;
2303 if(dist_scale_factor >= -64 && dist_scale_factor <= 128)
2304 w = 64 - dist_scale_factor;
2308 h->implicit_weight[ref0][ref1][0]=
2309 h->implicit_weight[ref0][ref1][1]= w;
2311 h->implicit_weight[ref0][ref1][field]=w;
2318 * instantaneous decoder refresh.
2320 static void idr(H264Context *h){
2321 ff_h264_remove_all_refs(h);
2322 h->prev_frame_num= 0;
2323 h->prev_frame_num_offset= 0;
2328 /* forget old pics after a seek */
2329 static void flush_dpb(AVCodecContext *avctx){
2330 H264Context *h= avctx->priv_data;
2332 for(i=0; i<MAX_DELAYED_PIC_COUNT; i++) {
2333 if(h->delayed_pic[i])
2334 h->delayed_pic[i]->f.reference = 0;
2335 h->delayed_pic[i]= NULL;
2337 h->outputed_poc=h->next_outputed_poc= INT_MIN;
2338 h->prev_interlaced_frame = 1;
2340 if(h->s.current_picture_ptr)
2341 h->s.current_picture_ptr->f.reference = 0;
2342 h->s.first_field= 0;
2343 ff_h264_reset_sei(h);
2344 ff_mpeg_flush(avctx);
2347 static int init_poc(H264Context *h){
2348 MpegEncContext * const s = &h->s;
2349 const int max_frame_num= 1<<h->sps.log2_max_frame_num;
2351 Picture *cur = s->current_picture_ptr;
2353 h->frame_num_offset= h->prev_frame_num_offset;
2354 if(h->frame_num < h->prev_frame_num)
2355 h->frame_num_offset += max_frame_num;
2357 if(h->sps.poc_type==0){
2358 const int max_poc_lsb= 1<<h->sps.log2_max_poc_lsb;
2360 if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2)
2361 h->poc_msb = h->prev_poc_msb + max_poc_lsb;
2362 else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2)
2363 h->poc_msb = h->prev_poc_msb - max_poc_lsb;
2365 h->poc_msb = h->prev_poc_msb;
2366 //printf("poc: %d %d\n", h->poc_msb, h->poc_lsb);
2368 field_poc[1] = h->poc_msb + h->poc_lsb;
2369 if(s->picture_structure == PICT_FRAME)
2370 field_poc[1] += h->delta_poc_bottom;
2371 }else if(h->sps.poc_type==1){
2372 int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
2375 if(h->sps.poc_cycle_length != 0)
2376 abs_frame_num = h->frame_num_offset + h->frame_num;
2380 if(h->nal_ref_idc==0 && abs_frame_num > 0)
2383 expected_delta_per_poc_cycle = 0;
2384 for(i=0; i < h->sps.poc_cycle_length; i++)
2385 expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse
2387 if(abs_frame_num > 0){
2388 int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length;
2389 int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;
2391 expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;
2392 for(i = 0; i <= frame_num_in_poc_cycle; i++)
2393 expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ];
2397 if(h->nal_ref_idc == 0)
2398 expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;
2400 field_poc[0] = expectedpoc + h->delta_poc[0];
2401 field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;
2403 if(s->picture_structure == PICT_FRAME)
2404 field_poc[1] += h->delta_poc[1];
2406 int poc= 2*(h->frame_num_offset + h->frame_num);
2415 if(s->picture_structure != PICT_BOTTOM_FIELD)
2416 s->current_picture_ptr->field_poc[0]= field_poc[0];
2417 if(s->picture_structure != PICT_TOP_FIELD)
2418 s->current_picture_ptr->field_poc[1]= field_poc[1];
2419 cur->poc= FFMIN(cur->field_poc[0], cur->field_poc[1]);
2426 * initialize scan tables
2428 static void init_scan_tables(H264Context *h){
2430 for(i=0; i<16; i++){
2431 #define T(x) (x>>2) | ((x<<2) & 0xF)
2432 h->zigzag_scan[i] = T(zigzag_scan[i]);
2433 h-> field_scan[i] = T( field_scan[i]);
2436 for(i=0; i<64; i++){
2437 #define T(x) (x>>3) | ((x&7)<<3)
2438 h->zigzag_scan8x8[i] = T(ff_zigzag_direct[i]);
2439 h->zigzag_scan8x8_cavlc[i] = T(zigzag_scan8x8_cavlc[i]);
2440 h->field_scan8x8[i] = T(field_scan8x8[i]);
2441 h->field_scan8x8_cavlc[i] = T(field_scan8x8_cavlc[i]);
2444 if(h->sps.transform_bypass){ //FIXME same ugly
2445 h->zigzag_scan_q0 = zigzag_scan;
2446 h->zigzag_scan8x8_q0 = ff_zigzag_direct;
2447 h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc;
2448 h->field_scan_q0 = field_scan;
2449 h->field_scan8x8_q0 = field_scan8x8;
2450 h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc;
2452 h->zigzag_scan_q0 = h->zigzag_scan;
2453 h->zigzag_scan8x8_q0 = h->zigzag_scan8x8;
2454 h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc;
2455 h->field_scan_q0 = h->field_scan;
2456 h->field_scan8x8_q0 = h->field_scan8x8;
2457 h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc;
2461 static int field_end(H264Context *h, int in_setup){
2462 MpegEncContext * const s = &h->s;
2463 AVCodecContext * const avctx= s->avctx;
2467 if (!in_setup && !s->dropable)
2468 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, (16*s->mb_height >> FIELD_PICTURE) - 1,
2469 s->picture_structure==PICT_BOTTOM_FIELD);
2471 if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
2472 ff_vdpau_h264_set_reference_frames(s);
2474 if(in_setup || !(avctx->active_thread_type&FF_THREAD_FRAME)){
2476 err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
2477 h->prev_poc_msb= h->poc_msb;
2478 h->prev_poc_lsb= h->poc_lsb;
2480 h->prev_frame_num_offset= h->frame_num_offset;
2481 h->prev_frame_num= h->frame_num;
2482 h->outputed_poc = h->next_outputed_poc;
2485 if (avctx->hwaccel) {
2486 if (avctx->hwaccel->end_frame(avctx) < 0)
2487 av_log(avctx, AV_LOG_ERROR, "hardware accelerator failed to decode picture\n");
2490 if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
2491 ff_vdpau_h264_picture_complete(s);
2494 * FIXME: Error handling code does not seem to support interlaced
2495 * when slices span multiple rows
2496 * The ff_er_add_slice calls don't work right for bottom
2497 * fields; they cause massive erroneous error concealing
2498 * Error marking covers both fields (top and bottom).
2499 * This causes a mismatched s->error_count
2500 * and a bad error table. Further, the error count goes to
2501 * INT_MAX when called for bottom field, because mb_y is
2502 * past end by one (callers fault) and resync_mb_y != 0
2503 * causes problems for the first MB line, too.
2516 * Replicate H264 "master" context to thread contexts.
2518 static void clone_slice(H264Context *dst, H264Context *src)
2520 memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
2521 dst->s.current_picture_ptr = src->s.current_picture_ptr;
2522 dst->s.current_picture = src->s.current_picture;
2523 dst->s.linesize = src->s.linesize;
2524 dst->s.uvlinesize = src->s.uvlinesize;
2525 dst->s.first_field = src->s.first_field;
2527 dst->prev_poc_msb = src->prev_poc_msb;
2528 dst->prev_poc_lsb = src->prev_poc_lsb;
2529 dst->prev_frame_num_offset = src->prev_frame_num_offset;
2530 dst->prev_frame_num = src->prev_frame_num;
2531 dst->short_ref_count = src->short_ref_count;
2533 memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
2534 memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
2535 memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
2536 memcpy(dst->ref_list, src->ref_list, sizeof(dst->ref_list));
2538 memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
2539 memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
2543 * computes profile from profile_idc and constraint_set?_flags
2547 * @return profile as defined by FF_PROFILE_H264_*
2549 int ff_h264_get_profile(SPS *sps)
2551 int profile = sps->profile_idc;
2553 switch(sps->profile_idc) {
2554 case FF_PROFILE_H264_BASELINE:
2555 // constraint_set1_flag set to 1
2556 profile |= (sps->constraint_set_flags & 1<<1) ? FF_PROFILE_H264_CONSTRAINED : 0;
2558 case FF_PROFILE_H264_HIGH_10:
2559 case FF_PROFILE_H264_HIGH_422:
2560 case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
2561 // constraint_set3_flag set to 1
2562 profile |= (sps->constraint_set_flags & 1<<3) ? FF_PROFILE_H264_INTRA : 0;
2570 * decodes a slice header.
2571 * This will also call MPV_common_init() and frame_start() as needed.
2573 * @param h h264context
2574 * @param h0 h264 master context (differs from 'h' when doing sliced based parallel decoding)
2576 * @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded
2578 static int decode_slice_header(H264Context *h, H264Context *h0){
2579 MpegEncContext * const s = &h->s;
2580 MpegEncContext * const s0 = &h0->s;
2581 unsigned int first_mb_in_slice;
2582 unsigned int pps_id;
2583 int num_ref_idx_active_override_flag;
2584 unsigned int slice_type, tmp, i, j;
2585 int default_ref_list_done = 0;
2586 int last_pic_structure;
2588 s->dropable= h->nal_ref_idc == 0;
2590 /* FIXME: 2tap qpel isn't implemented for high bit depth. */
2591 if((s->avctx->flags2 & CODEC_FLAG2_FAST) && !h->nal_ref_idc && !h->pixel_shift){
2592 s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab;
2593 s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab;
2595 s->me.qpel_put= s->dsp.put_h264_qpel_pixels_tab;
2596 s->me.qpel_avg= s->dsp.avg_h264_qpel_pixels_tab;
2599 first_mb_in_slice= get_ue_golomb(&s->gb);
2601 if(first_mb_in_slice == 0){ //FIXME better field boundary detection
2602 if(h0->current_slice && FIELD_PICTURE){
2606 h0->current_slice = 0;
2607 if (!s0->first_field)
2608 s->current_picture_ptr= NULL;
2611 slice_type= get_ue_golomb_31(&s->gb);
2613 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);
2618 h->slice_type_fixed=1;
2620 h->slice_type_fixed=0;
2622 slice_type= golomb_to_pict_type[ slice_type ];
2623 if (slice_type == AV_PICTURE_TYPE_I
2624 || (h0->current_slice != 0 && slice_type == h0->last_slice_type) ) {
2625 default_ref_list_done = 1;
2627 h->slice_type= slice_type;
2628 h->slice_type_nos= slice_type & 3;
2630 s->pict_type= h->slice_type; // to make a few old functions happy, it's wrong though
2632 pps_id= get_ue_golomb(&s->gb);
2633 if(pps_id>=MAX_PPS_COUNT){
2634 av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
2637 if(!h0->pps_buffers[pps_id]) {
2638 av_log(h->s.avctx, AV_LOG_ERROR, "non-existing PPS %u referenced\n", pps_id);
2641 h->pps= *h0->pps_buffers[pps_id];
2643 if(!h0->sps_buffers[h->pps.sps_id]) {
2644 av_log(h->s.avctx, AV_LOG_ERROR, "non-existing SPS %u referenced\n", h->pps.sps_id);
2647 h->sps = *h0->sps_buffers[h->pps.sps_id];
2649 s->avctx->profile = ff_h264_get_profile(&h->sps);
2650 s->avctx->level = h->sps.level_idc;
2651 s->avctx->refs = h->sps.ref_frame_count;
2653 if(h == h0 && h->dequant_coeff_pps != pps_id){
2654 h->dequant_coeff_pps = pps_id;
2655 init_dequant_tables(h);
2658 s->mb_width= h->sps.mb_width;
2659 s->mb_height= h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);
2661 h->b_stride= s->mb_width*4;
2663 s->chroma_y_shift = h->sps.chroma_format_idc <= 1; // 400 uses yuv420p
2665 s->width = 16*s->mb_width - (2>>CHROMA444)*FFMIN(h->sps.crop_right, (8<<CHROMA444)-1);
2666 if(h->sps.frame_mbs_only_flag)
2667 s->height= 16*s->mb_height - (1<<s->chroma_y_shift)*FFMIN(h->sps.crop_bottom, (16>>s->chroma_y_shift)-1);
2669 s->height= 16*s->mb_height - (2<<s->chroma_y_shift)*FFMIN(h->sps.crop_bottom, (16>>s->chroma_y_shift)-1);
2671 if (s->context_initialized
2672 && ( s->width != s->avctx->width || s->height != s->avctx->height
2673 || av_cmp_q(h->sps.sar, s->avctx->sample_aspect_ratio))) {
2675 av_log_missing_feature(s->avctx, "Width/height changing with threads is", 0);
2676 return -1; // width / height changed during parallelized decoding
2679 flush_dpb(s->avctx);
2682 if (!s->context_initialized) {
2684 av_log(h->s.avctx, AV_LOG_ERROR, "Cannot (re-)initialize context during parallel decoding.\n");
2688 avcodec_set_dimensions(s->avctx, s->width, s->height);
2689 s->avctx->sample_aspect_ratio= h->sps.sar;
2690 av_assert0(s->avctx->sample_aspect_ratio.den);
2692 if(h->sps.video_signal_type_present_flag){
2693 s->avctx->color_range = h->sps.full_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
2694 if(h->sps.colour_description_present_flag){
2695 s->avctx->color_primaries = h->sps.color_primaries;
2696 s->avctx->color_trc = h->sps.color_trc;
2697 s->avctx->colorspace = h->sps.colorspace;
2701 if(h->sps.timing_info_present_flag){
2702 int64_t den= h->sps.time_scale;
2703 if(h->x264_build < 44U)
2705 av_reduce(&s->avctx->time_base.num, &s->avctx->time_base.den,
2706 h->sps.num_units_in_tick, den, 1<<30);
2709 switch (h->sps.bit_depth_luma) {
2712 s->avctx->pix_fmt = PIX_FMT_YUV444P9;
2714 s->avctx->pix_fmt = PIX_FMT_YUV422P9;
2716 s->avctx->pix_fmt = PIX_FMT_YUV420P9;
2720 s->avctx->pix_fmt = PIX_FMT_YUV444P10;
2722 s->avctx->pix_fmt = PIX_FMT_YUV422P10;
2724 s->avctx->pix_fmt = PIX_FMT_YUV420P10;
2728 s->avctx->pix_fmt = s->avctx->color_range == AVCOL_RANGE_JPEG ? PIX_FMT_YUVJ444P : PIX_FMT_YUV444P;
2729 } else if (CHROMA422) {
2730 s->avctx->pix_fmt = s->avctx->color_range == AVCOL_RANGE_JPEG ? PIX_FMT_YUVJ422P : PIX_FMT_YUV422P;
2732 s->avctx->pix_fmt = s->avctx->get_format(s->avctx,
2733 s->avctx->codec->pix_fmts ?
2734 s->avctx->codec->pix_fmts :
2735 s->avctx->color_range == AVCOL_RANGE_JPEG ?
2736 hwaccel_pixfmt_list_h264_jpeg_420 :
2737 ff_hwaccel_pixfmt_list_420);
2741 s->avctx->hwaccel = ff_find_hwaccel(s->avctx->codec->id, s->avctx->pix_fmt);
2743 if (MPV_common_init(s) < 0) {
2744 av_log(h->s.avctx, AV_LOG_ERROR, "MPV_common_init() failed.\n");
2748 h->prev_interlaced_frame = 1;
2750 init_scan_tables(h);
2751 if (ff_h264_alloc_tables(h) < 0) {
2752 av_log(h->s.avctx, AV_LOG_ERROR, "Could not allocate memory for h264\n");
2753 return AVERROR(ENOMEM);
2756 if (!HAVE_THREADS || !(s->avctx->active_thread_type&FF_THREAD_SLICE)) {
2757 if (context_init(h) < 0) {
2758 av_log(h->s.avctx, AV_LOG_ERROR, "context_init() failed.\n");
2762 for(i = 1; i < s->avctx->thread_count; i++) {
2764 c = h->thread_context[i] = av_malloc(sizeof(H264Context));
2765 memcpy(c, h->s.thread_context[i], sizeof(MpegEncContext));
2766 memset(&c->s + 1, 0, sizeof(H264Context) - sizeof(MpegEncContext));
2767 c->h264dsp = h->h264dsp;
2770 c->pixel_shift = h->pixel_shift;
2771 init_scan_tables(c);
2772 clone_tables(c, h, i);
2775 for(i = 0; i < s->avctx->thread_count; i++)
2776 if (context_init(h->thread_context[i]) < 0) {
2777 av_log(h->s.avctx, AV_LOG_ERROR, "context_init() failed.\n");
2783 h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num);
2786 h->mb_aff_frame = 0;
2787 last_pic_structure = s0->picture_structure;
2788 if(h->sps.frame_mbs_only_flag){
2789 s->picture_structure= PICT_FRAME;
2791 if(get_bits1(&s->gb)) { //field_pic_flag
2792 s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag
2794 s->picture_structure= PICT_FRAME;
2795 h->mb_aff_frame = h->sps.mb_aff;
2798 h->mb_field_decoding_flag= s->picture_structure != PICT_FRAME;
2800 if(h0->current_slice == 0){
2801 // Shorten frame num gaps so we don't have to allocate reference frames just to throw them away
2802 if(h->frame_num != h->prev_frame_num) {
2803 int unwrap_prev_frame_num = h->prev_frame_num, max_frame_num = 1<<h->sps.log2_max_frame_num;
2805 if (unwrap_prev_frame_num > h->frame_num) unwrap_prev_frame_num -= max_frame_num;
2807 if ((h->frame_num - unwrap_prev_frame_num) > h->sps.ref_frame_count) {
2808 unwrap_prev_frame_num = (h->frame_num - h->sps.ref_frame_count) - 1;
2809 if (unwrap_prev_frame_num < 0)
2810 unwrap_prev_frame_num += max_frame_num;
2812 h->prev_frame_num = unwrap_prev_frame_num;
2816 while(h->frame_num != h->prev_frame_num &&
2817 h->frame_num != (h->prev_frame_num+1)%(1<<h->sps.log2_max_frame_num)){
2818 Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
2819 av_log(h->s.avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n", h->frame_num, h->prev_frame_num);
2820 if (ff_h264_frame_start(h) < 0)
2822 h->prev_frame_num++;
2823 h->prev_frame_num %= 1<<h->sps.log2_max_frame_num;
2824 s->current_picture_ptr->frame_num= h->prev_frame_num;
2825 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, INT_MAX, 0);
2826 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, INT_MAX, 1);
2827 ff_generate_sliding_window_mmcos(h);
2828 if (ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index) < 0 &&
2829 (s->avctx->err_recognition & AV_EF_EXPLODE))
2830 return AVERROR_INVALIDDATA;
2831 /* Error concealment: if a ref is missing, copy the previous ref in its place.
2832 * FIXME: avoiding a memcpy would be nice, but ref handling makes many assumptions
2833 * about there being no actual duplicates.
2834 * FIXME: this doesn't copy padding for out-of-frame motion vectors. Given we're
2835 * concealing a lost frame, this probably isn't noticable by comparison, but it should
2837 if (h->short_ref_count) {
2839 av_image_copy(h->short_ref[0]->f.data, h->short_ref[0]->f.linesize,
2840 (const uint8_t**)prev->f.data, prev->f.linesize,
2841 s->avctx->pix_fmt, s->mb_width*16, s->mb_height*16);
2842 h->short_ref[0]->poc = prev->poc+2;
2844 h->short_ref[0]->frame_num = h->prev_frame_num;
2848 /* See if we have a decoded first field looking for a pair... */
2849 if (s0->first_field) {
2850 assert(s0->current_picture_ptr);
2851 assert(s0->current_picture_ptr->f.data[0]);
2852 assert(s0->current_picture_ptr->f.reference != DELAYED_PIC_REF);
2854 /* figure out if we have a complementary field pair */
2855 if (!FIELD_PICTURE || s->picture_structure == last_pic_structure) {
2857 * Previous field is unmatched. Don't display it, but let it
2858 * remain for reference if marked as such.
2860 s0->current_picture_ptr = NULL;
2861 s0->first_field = FIELD_PICTURE;
2864 if (h->nal_ref_idc &&
2865 s0->current_picture_ptr->f.reference &&
2866 s0->current_picture_ptr->frame_num != h->frame_num) {
2868 * This and previous field were reference, but had
2869 * different frame_nums. Consider this field first in
2870 * pair. Throw away previous field except for reference
2873 s0->first_field = 1;
2874 s0->current_picture_ptr = NULL;
2877 /* Second field in complementary pair */
2878 s0->first_field = 0;
2883 /* Frame or first field in a potentially complementary pair */
2884 assert(!s0->current_picture_ptr);
2885 s0->first_field = FIELD_PICTURE;
2888 if(!FIELD_PICTURE || s0->first_field) {
2889 if (ff_h264_frame_start(h) < 0) {
2890 s0->first_field = 0;
2894 ff_release_unused_pictures(s, 0);
2900 s->current_picture_ptr->frame_num= h->frame_num; //FIXME frame_num cleanup
2902 assert(s->mb_num == s->mb_width * s->mb_height);
2903 if(first_mb_in_slice << FIELD_OR_MBAFF_PICTURE >= s->mb_num ||
2904 first_mb_in_slice >= s->mb_num){
2905 av_log(h->s.avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
2908 s->resync_mb_x = s->mb_x = first_mb_in_slice % s->mb_width;
2909 s->resync_mb_y = s->mb_y = (first_mb_in_slice / s->mb_width) << FIELD_OR_MBAFF_PICTURE;
2910 if (s->picture_structure == PICT_BOTTOM_FIELD)
2911 s->resync_mb_y = s->mb_y = s->mb_y + 1;
2912 assert(s->mb_y < s->mb_height);
2914 if(s->picture_structure==PICT_FRAME){
2915 h->curr_pic_num= h->frame_num;
2916 h->max_pic_num= 1<< h->sps.log2_max_frame_num;
2918 h->curr_pic_num= 2*h->frame_num + 1;
2919 h->max_pic_num= 1<<(h->sps.log2_max_frame_num + 1);
2922 if(h->nal_unit_type == NAL_IDR_SLICE){
2923 get_ue_golomb(&s->gb); /* idr_pic_id */
2926 if(h->sps.poc_type==0){
2927 h->poc_lsb= get_bits(&s->gb, h->sps.log2_max_poc_lsb);
2929 if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME){
2930 h->delta_poc_bottom= get_se_golomb(&s->gb);
2934 if(h->sps.poc_type==1 && !h->sps.delta_pic_order_always_zero_flag){
2935 h->delta_poc[0]= get_se_golomb(&s->gb);
2937 if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME)
2938 h->delta_poc[1]= get_se_golomb(&s->gb);
2943 if(h->pps.redundant_pic_cnt_present){
2944 h->redundant_pic_count= get_ue_golomb(&s->gb);
2947 //set defaults, might be overridden a few lines later
2948 h->ref_count[0]= h->pps.ref_count[0];
2949 h->ref_count[1]= h->pps.ref_count[1];
2951 if(h->slice_type_nos != AV_PICTURE_TYPE_I){
2952 if(h->slice_type_nos == AV_PICTURE_TYPE_B){
2953 h->direct_spatial_mv_pred= get_bits1(&s->gb);
2955 num_ref_idx_active_override_flag= get_bits1(&s->gb);
2957 if(num_ref_idx_active_override_flag){
2958 h->ref_count[0]= get_ue_golomb(&s->gb) + 1;
2959 if(h->slice_type_nos==AV_PICTURE_TYPE_B)
2960 h->ref_count[1]= get_ue_golomb(&s->gb) + 1;
2962 if(h->ref_count[0]-1 > 32-1 || h->ref_count[1]-1 > 32-1){
2963 av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
2964 h->ref_count[0]= h->ref_count[1]= 1;
2968 if(h->slice_type_nos == AV_PICTURE_TYPE_B)
2975 if(!default_ref_list_done){
2976 ff_h264_fill_default_ref_list(h);
2979 if(h->slice_type_nos!=AV_PICTURE_TYPE_I && ff_h264_decode_ref_pic_list_reordering(h) < 0) {
2980 h->ref_count[1]= h->ref_count[0]= 0;
2984 if(h->slice_type_nos!=AV_PICTURE_TYPE_I){
2985 s->last_picture_ptr= &h->ref_list[0][0];
2986 ff_copy_picture(&s->last_picture, s->last_picture_ptr);
2988 if(h->slice_type_nos==AV_PICTURE_TYPE_B){
2989 s->next_picture_ptr= &h->ref_list[1][0];
2990 ff_copy_picture(&s->next_picture, s->next_picture_ptr);
2993 if( (h->pps.weighted_pred && h->slice_type_nos == AV_PICTURE_TYPE_P )
2994 || (h->pps.weighted_bipred_idc==1 && h->slice_type_nos== AV_PICTURE_TYPE_B ) )
2995 pred_weight_table(h);
2996 else if(h->pps.weighted_bipred_idc==2 && h->slice_type_nos== AV_PICTURE_TYPE_B){
2997 implicit_weight_table(h, -1);
3000 for (i = 0; i < 2; i++) {
3001 h->luma_weight_flag[i] = 0;
3002 h->chroma_weight_flag[i] = 0;
3006 if(h->nal_ref_idc && ff_h264_decode_ref_pic_marking(h0, &s->gb) < 0 &&
3007 (s->avctx->err_recognition & AV_EF_EXPLODE))
3008 return AVERROR_INVALIDDATA;
3011 ff_h264_fill_mbaff_ref_list(h);
3013 if(h->pps.weighted_bipred_idc==2 && h->slice_type_nos== AV_PICTURE_TYPE_B){
3014 implicit_weight_table(h, 0);
3015 implicit_weight_table(h, 1);
3019 if(h->slice_type_nos==AV_PICTURE_TYPE_B && !h->direct_spatial_mv_pred)
3020 ff_h264_direct_dist_scale_factor(h);
3021 ff_h264_direct_ref_list_init(h);
3023 if( h->slice_type_nos != AV_PICTURE_TYPE_I && h->pps.cabac ){
3024 tmp = get_ue_golomb_31(&s->gb);
3026 av_log(s->avctx, AV_LOG_ERROR, "cabac_init_idc overflow\n");
3029 h->cabac_init_idc= tmp;
3032 h->last_qscale_diff = 0;
3033 tmp = h->pps.init_qp + get_se_golomb(&s->gb);
3034 if(tmp>51+6*(h->sps.bit_depth_luma-8)){
3035 av_log(s->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
3039 h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
3040 h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
3041 //FIXME qscale / qp ... stuff
3042 if(h->slice_type == AV_PICTURE_TYPE_SP){
3043 get_bits1(&s->gb); /* sp_for_switch_flag */
3045 if(h->slice_type==AV_PICTURE_TYPE_SP || h->slice_type == AV_PICTURE_TYPE_SI){
3046 get_se_golomb(&s->gb); /* slice_qs_delta */
3049 h->deblocking_filter = 1;
3050 h->slice_alpha_c0_offset = 52;
3051 h->slice_beta_offset = 52;
3052 if( h->pps.deblocking_filter_parameters_present ) {
3053 tmp= get_ue_golomb_31(&s->gb);
3055 av_log(s->avctx, AV_LOG_ERROR, "deblocking_filter_idc %u out of range\n", tmp);
3058 h->deblocking_filter= tmp;
3059 if(h->deblocking_filter < 2)
3060 h->deblocking_filter^= 1; // 1<->0
3062 if( h->deblocking_filter ) {
3063 h->slice_alpha_c0_offset += get_se_golomb(&s->gb) << 1;
3064 h->slice_beta_offset += get_se_golomb(&s->gb) << 1;
3065 if( h->slice_alpha_c0_offset > 104U
3066 || h->slice_beta_offset > 104U){
3067 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);
3073 if( s->avctx->skip_loop_filter >= AVDISCARD_ALL
3074 ||(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY && h->slice_type_nos != AV_PICTURE_TYPE_I)
3075 ||(s->avctx->skip_loop_filter >= AVDISCARD_BIDIR && h->slice_type_nos == AV_PICTURE_TYPE_B)
3076 ||(s->avctx->skip_loop_filter >= AVDISCARD_NONREF && h->nal_ref_idc == 0))
3077 h->deblocking_filter= 0;
3079 if(h->deblocking_filter == 1 && h0->max_contexts > 1) {
3080 if(s->avctx->flags2 & CODEC_FLAG2_FAST) {
3081 /* Cheat slightly for speed:
3082 Do not bother to deblock across slices. */
3083 h->deblocking_filter = 2;
3085 h0->max_contexts = 1;
3086 if(!h0->single_decode_warning) {
3087 av_log(s->avctx, AV_LOG_INFO, "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
3088 h0->single_decode_warning = 1;
3091 av_log(h->s.avctx, AV_LOG_ERROR, "Deblocking switched inside frame.\n");
3096 h->qp_thresh = 15 + 52 - FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset)
3097 - FFMAX3(0, h->pps.chroma_qp_index_offset[0], h->pps.chroma_qp_index_offset[1])
3098 + 6 * (h->sps.bit_depth_luma - 8);
3101 if( h->pps.num_slice_groups > 1 && h->pps.mb_slice_group_map_type >= 3 && h->pps.mb_slice_group_map_type <= 5)
3102 slice_group_change_cycle= get_bits(&s->gb, ?);
3105 h0->last_slice_type = slice_type;
3106 h->slice_num = ++h0->current_slice;
3107 if(h->slice_num >= MAX_SLICES){
3108 av_log(s->avctx, AV_LOG_ERROR, "Too many slices, increase MAX_SLICES and recompile\n");
3113 int *ref2frm= h->ref2frm[h->slice_num&(MAX_SLICES-1)][j];
3114 for(i=0; i<16; i++){
3116 if (h->ref_list[j][i].f.data[0]) {
3118 uint8_t *base = h->ref_list[j][i].f.base[0];
3119 for(k=0; k<h->short_ref_count; k++)
3120 if (h->short_ref[k]->f.base[0] == base) {
3124 for(k=0; k<h->long_ref_count; k++)
3125 if (h->long_ref[k] && h->long_ref[k]->f.base[0] == base) {
3126 id_list[i]= h->short_ref_count + k;
3135 ref2frm[i+2]= 4*id_list[i]
3136 + (h->ref_list[j][i].f.reference & 3);
3139 for(i=16; i<48; i++)
3140 ref2frm[i+4]= 4*id_list[(i-16)>>1]
3141 + (h->ref_list[j][i].f.reference & 3);
3144 //FIXME: fix draw_edges+PAFF+frame threads
3145 h->emu_edge_width= (s->flags&CODEC_FLAG_EMU_EDGE || (!h->sps.frame_mbs_only_flag && s->avctx->active_thread_type)) ? 0 : 16;
3146 h->emu_edge_height= (FRAME_MBAFF || FIELD_PICTURE) ? 0 : h->emu_edge_width;
3148 if(s->avctx->debug&FF_DEBUG_PICT_INFO){
3149 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",
3151 (s->picture_structure==PICT_FRAME ? "F" : s->picture_structure==PICT_TOP_FIELD ? "T" : "B"),
3153 av_get_picture_type_char(h->slice_type), h->slice_type_fixed ? " fix" : "", h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "",
3154 pps_id, h->frame_num,
3155 s->current_picture_ptr->field_poc[0], s->current_picture_ptr->field_poc[1],
3156 h->ref_count[0], h->ref_count[1],
3158 h->deblocking_filter, h->slice_alpha_c0_offset/2-26, h->slice_beta_offset/2-26,
3160 h->use_weight==1 && h->use_weight_chroma ? "c" : "",
3161 h->slice_type == AV_PICTURE_TYPE_B ? (h->direct_spatial_mv_pred ? "SPAT" : "TEMP") : ""
3168 int ff_h264_get_slice_type(const H264Context *h)
3170 switch (h->slice_type) {
3171 case AV_PICTURE_TYPE_P: return 0;
3172 case AV_PICTURE_TYPE_B: return 1;
3173 case AV_PICTURE_TYPE_I: return 2;
3174 case AV_PICTURE_TYPE_SP: return 3;
3175 case AV_PICTURE_TYPE_SI: return 4;
3180 static av_always_inline void fill_filter_caches_inter(H264Context *h, MpegEncContext * const s, int mb_type, int top_xy,
3181 int left_xy[LEFT_MBS], int top_type, int left_type[LEFT_MBS], int mb_xy, int list)
3183 int b_stride = h->b_stride;
3184 int16_t (*mv_dst)[2] = &h->mv_cache[list][scan8[0]];
3185 int8_t *ref_cache = &h->ref_cache[list][scan8[0]];
3186 if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
3187 if(USES_LIST(top_type, list)){
3188 const int b_xy= h->mb2b_xy[top_xy] + 3*b_stride;
3189 const int b8_xy= 4*top_xy + 2;
3190 int (*ref2frm)[64] = h->ref2frm[ h->slice_table[top_xy]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
3191 AV_COPY128(mv_dst - 1*8, s->current_picture.f.motion_val[list][b_xy + 0]);
3193 ref_cache[1 - 1*8]= ref2frm[list][s->current_picture.f.ref_index[list][b8_xy + 0]];
3195 ref_cache[3 - 1*8]= ref2frm[list][s->current_picture.f.ref_index[list][b8_xy + 1]];
3197 AV_ZERO128(mv_dst - 1*8);
3198 AV_WN32A(&ref_cache[0 - 1*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3201 if(!IS_INTERLACED(mb_type^left_type[LTOP])){
3202 if(USES_LIST(left_type[LTOP], list)){
3203 const int b_xy= h->mb2b_xy[left_xy[LTOP]] + 3;
3204 const int b8_xy= 4*left_xy[LTOP] + 1;
3205 int (*ref2frm)[64] = h->ref2frm[ h->slice_table[left_xy[LTOP]]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
3206 AV_COPY32(mv_dst - 1 + 0, s->current_picture.f.motion_val[list][b_xy + b_stride*0]);
3207 AV_COPY32(mv_dst - 1 + 8, s->current_picture.f.motion_val[list][b_xy + b_stride*1]);
3208 AV_COPY32(mv_dst - 1 + 16, s->current_picture.f.motion_val[list][b_xy + b_stride*2]);
3209 AV_COPY32(mv_dst - 1 + 24, s->current_picture.f.motion_val[list][b_xy + b_stride*3]);
3211 ref_cache[-1 + 8]= ref2frm[list][s->current_picture.f.ref_index[list][b8_xy + 2*0]];
3213 ref_cache[-1 + 24]= ref2frm[list][s->current_picture.f.ref_index[list][b8_xy + 2*1]];
3215 AV_ZERO32(mv_dst - 1 + 0);
3216 AV_ZERO32(mv_dst - 1 + 8);
3217 AV_ZERO32(mv_dst - 1 +16);
3218 AV_ZERO32(mv_dst - 1 +24);
3222 ref_cache[-1 + 24]= LIST_NOT_USED;
3227 if(!USES_LIST(mb_type, list)){
3228 fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0,0), 4);
3229 AV_WN32A(&ref_cache[0*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3230 AV_WN32A(&ref_cache[1*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3231 AV_WN32A(&ref_cache[2*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3232 AV_WN32A(&ref_cache[3*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3237 int8_t *ref = &s->current_picture.f.ref_index[list][4*mb_xy];
3238 int (*ref2frm)[64] = h->ref2frm[ h->slice_num&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
3239 uint32_t ref01 = (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101;
3240 uint32_t ref23 = (pack16to32(ref2frm[list][ref[2]],ref2frm[list][ref[3]])&0x00FF00FF)*0x0101;
3241 AV_WN32A(&ref_cache[0*8], ref01);
3242 AV_WN32A(&ref_cache[1*8], ref01);
3243 AV_WN32A(&ref_cache[2*8], ref23);
3244 AV_WN32A(&ref_cache[3*8], ref23);
3248 int16_t (*mv_src)[2] = &s->current_picture.f.motion_val[list][4*s->mb_x + 4*s->mb_y*b_stride];
3249 AV_COPY128(mv_dst + 8*0, mv_src + 0*b_stride);
3250 AV_COPY128(mv_dst + 8*1, mv_src + 1*b_stride);
3251 AV_COPY128(mv_dst + 8*2, mv_src + 2*b_stride);
3252 AV_COPY128(mv_dst + 8*3, mv_src + 3*b_stride);
3258 * @return non zero if the loop filter can be skiped
3260 static int fill_filter_caches(H264Context *h, int mb_type){
3261 MpegEncContext * const s = &h->s;
3262 const int mb_xy= h->mb_xy;
3263 int top_xy, left_xy[LEFT_MBS];
3264 int top_type, left_type[LEFT_MBS];
3268 top_xy = mb_xy - (s->mb_stride << MB_FIELD);
3270 /* Wow, what a mess, why didn't they simplify the interlacing & intra
3271 * stuff, I can't imagine that these complex rules are worth it. */
3273 left_xy[LBOT] = left_xy[LTOP] = mb_xy-1;
3275 const int left_mb_field_flag = IS_INTERLACED(s->current_picture.f.mb_type[mb_xy - 1]);
3276 const int curr_mb_field_flag = IS_INTERLACED(mb_type);
3278 if (left_mb_field_flag != curr_mb_field_flag) {
3279 left_xy[LTOP] -= s->mb_stride;
3282 if(curr_mb_field_flag){
3283 top_xy += s->mb_stride & (((s->current_picture.f.mb_type[top_xy] >> 7) & 1) - 1);
3285 if (left_mb_field_flag != curr_mb_field_flag) {
3286 left_xy[LBOT] += s->mb_stride;
3291 h->top_mb_xy = top_xy;
3292 h->left_mb_xy[LTOP] = left_xy[LTOP];
3293 h->left_mb_xy[LBOT] = left_xy[LBOT];
3295 //for sufficiently low qp, filtering wouldn't do anything
3296 //this is a conservative estimate: could also check beta_offset and more accurate chroma_qp
3297 int qp_thresh = h->qp_thresh; //FIXME strictly we should store qp_thresh for each mb of a slice
3298 int qp = s->current_picture.f.qscale_table[mb_xy];
3300 && (left_xy[LTOP] < 0 || ((qp + s->current_picture.f.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh)
3301 && (top_xy < 0 || ((qp + s->current_picture.f.qscale_table[top_xy ] + 1) >> 1) <= qp_thresh)) {
3304 if ((left_xy[LTOP] < 0 || ((qp + s->current_picture.f.qscale_table[left_xy[LBOT] ] + 1) >> 1) <= qp_thresh) &&
3305 (top_xy < s->mb_stride || ((qp + s->current_picture.f.qscale_table[top_xy - s->mb_stride] + 1) >> 1) <= qp_thresh))
3310 top_type = s->current_picture.f.mb_type[top_xy];
3311 left_type[LTOP] = s->current_picture.f.mb_type[left_xy[LTOP]];
3312 left_type[LBOT] = s->current_picture.f.mb_type[left_xy[LBOT]];
3313 if(h->deblocking_filter == 2){
3314 if(h->slice_table[top_xy ] != h->slice_num) top_type= 0;
3315 if(h->slice_table[left_xy[LBOT]] != h->slice_num) left_type[LTOP]= left_type[LBOT]= 0;
3317 if(h->slice_table[top_xy ] == 0xFFFF) top_type= 0;
3318 if(h->slice_table[left_xy[LBOT]] == 0xFFFF) left_type[LTOP]= left_type[LBOT] =0;
3320 h->top_type = top_type;
3321 h->left_type[LTOP]= left_type[LTOP];
3322 h->left_type[LBOT]= left_type[LBOT];
3324 if(IS_INTRA(mb_type))
3327 fill_filter_caches_inter(h, s, mb_type, top_xy, left_xy, top_type, left_type, mb_xy, 0);
3328 if(h->list_count == 2)
3329 fill_filter_caches_inter(h, s, mb_type, top_xy, left_xy, top_type, left_type, mb_xy, 1);
3331 nnz = h->non_zero_count[mb_xy];
3332 nnz_cache = h->non_zero_count_cache;
3333 AV_COPY32(&nnz_cache[4+8*1], &nnz[ 0]);
3334 AV_COPY32(&nnz_cache[4+8*2], &nnz[ 4]);
3335 AV_COPY32(&nnz_cache[4+8*3], &nnz[ 8]);
3336 AV_COPY32(&nnz_cache[4+8*4], &nnz[12]);
3337 h->cbp= h->cbp_table[mb_xy];
3340 nnz = h->non_zero_count[top_xy];
3341 AV_COPY32(&nnz_cache[4+8*0], &nnz[3*4]);
3344 if(left_type[LTOP]){
3345 nnz = h->non_zero_count[left_xy[LTOP]];
3346 nnz_cache[3+8*1]= nnz[3+0*4];
3347 nnz_cache[3+8*2]= nnz[3+1*4];
3348 nnz_cache[3+8*3]= nnz[3+2*4];
3349 nnz_cache[3+8*4]= nnz[3+3*4];
3352 // CAVLC 8x8dct requires NNZ values for residual decoding that differ from what the loop filter needs
3353 if(!CABAC && h->pps.transform_8x8_mode){
3354 if(IS_8x8DCT(top_type)){
3356 nnz_cache[5+8*0]= (h->cbp_table[top_xy] & 0x4000) >> 12;
3358 nnz_cache[7+8*0]= (h->cbp_table[top_xy] & 0x8000) >> 12;
3360 if(IS_8x8DCT(left_type[LTOP])){
3362 nnz_cache[3+8*2]= (h->cbp_table[left_xy[LTOP]]&0x2000) >> 12; //FIXME check MBAFF
3364 if(IS_8x8DCT(left_type[LBOT])){
3366 nnz_cache[3+8*4]= (h->cbp_table[left_xy[LBOT]]&0x8000) >> 12; //FIXME check MBAFF
3369 if(IS_8x8DCT(mb_type)){
3370 nnz_cache[scan8[0 ]]= nnz_cache[scan8[1 ]]=
3371 nnz_cache[scan8[2 ]]= nnz_cache[scan8[3 ]]= (h->cbp & 0x1000) >> 12;
3373 nnz_cache[scan8[0+ 4]]= nnz_cache[scan8[1+ 4]]=
3374 nnz_cache[scan8[2+ 4]]= nnz_cache[scan8[3+ 4]]= (h->cbp & 0x2000) >> 12;
3376 nnz_cache[scan8[0+ 8]]= nnz_cache[scan8[1+ 8]]=
3377 nnz_cache[scan8[2+ 8]]= nnz_cache[scan8[3+ 8]]= (h->cbp & 0x4000) >> 12;
3379 nnz_cache[scan8[0+12]]= nnz_cache[scan8[1+12]]=
3380 nnz_cache[scan8[2+12]]= nnz_cache[scan8[3+12]]= (h->cbp & 0x8000) >> 12;
3387 static void loop_filter(H264Context *h, int start_x, int end_x){
3388 MpegEncContext * const s = &h->s;
3389 uint8_t *dest_y, *dest_cb, *dest_cr;
3390 int linesize, uvlinesize, mb_x, mb_y;
3391 const int end_mb_y= s->mb_y + FRAME_MBAFF;
3392 const int old_slice_type= h->slice_type;
3393 const int pixel_shift = h->pixel_shift;
3394 const int block_h = 16 >> s->chroma_y_shift;
3396 if(h->deblocking_filter) {
3397 for(mb_x= start_x; mb_x<end_x; mb_x++){
3398 for(mb_y=end_mb_y - FRAME_MBAFF; mb_y<= end_mb_y; mb_y++){
3400 mb_xy = h->mb_xy = mb_x + mb_y*s->mb_stride;
3401 h->slice_num= h->slice_table[mb_xy];
3402 mb_type = s->current_picture.f.mb_type[mb_xy];
3403 h->list_count= h->list_counts[mb_xy];
3406 h->mb_mbaff = h->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
3410 dest_y = s->current_picture.f.data[0] + ((mb_x << pixel_shift) + mb_y * s->linesize ) * 16;
3411 dest_cb = s->current_picture.f.data[1] + (mb_x << pixel_shift) * (8 << CHROMA444) + mb_y * s->uvlinesize * block_h;
3412 dest_cr = s->current_picture.f.data[2] + (mb_x << pixel_shift) * (8 << CHROMA444) + mb_y * s->uvlinesize * block_h;
3413 //FIXME simplify above
3416 linesize = h->mb_linesize = s->linesize * 2;
3417 uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
3418 if(mb_y&1){ //FIXME move out of this function?
3419 dest_y -= s->linesize*15;
3420 dest_cb-= s->uvlinesize * (block_h - 1);
3421 dest_cr-= s->uvlinesize * (block_h - 1);
3424 linesize = h->mb_linesize = s->linesize;
3425 uvlinesize = h->mb_uvlinesize = s->uvlinesize;
3427 backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0);
3428 if(fill_filter_caches(h, mb_type))
3430 h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.f.qscale_table[mb_xy]);
3431 h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.f.qscale_table[mb_xy]);
3434 ff_h264_filter_mb (h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
3436 ff_h264_filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
3441 h->slice_type= old_slice_type;
3443 s->mb_y= end_mb_y - FRAME_MBAFF;
3444 h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
3445 h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
3448 static void predict_field_decoding_flag(H264Context *h){
3449 MpegEncContext * const s = &h->s;
3450 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
3451 int mb_type = (h->slice_table[mb_xy-1] == h->slice_num)
3452 ? s->current_picture.f.mb_type[mb_xy - 1]
3453 : (h->slice_table[mb_xy-s->mb_stride] == h->slice_num)
3454 ? s->current_picture.f.mb_type[mb_xy - s->mb_stride]
3456 h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
3460 * Draw edges and report progress for the last MB row.
3462 static void decode_finish_row(H264Context *h){
3463 MpegEncContext * const s = &h->s;
3464 int top = 16*(s->mb_y >> FIELD_PICTURE);
3465 int height = 16 << FRAME_MBAFF;
3466 int deblock_border = (16 + 4) << FRAME_MBAFF;
3467 int pic_height = 16*s->mb_height >> FIELD_PICTURE;
3469 if (h->deblocking_filter) {
3470 if((top + height) >= pic_height)
3471 height += deblock_border;
3473 top -= deblock_border;
3476 if (top >= pic_height || (top + height) < h->emu_edge_height)
3479 height = FFMIN(height, pic_height - top);
3480 if (top < h->emu_edge_height) {
3481 height = top+height;
3485 ff_draw_horiz_band(s, top, height);
3487 if (s->dropable) return;
3489 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, top + height - 1,
3490 s->picture_structure==PICT_BOTTOM_FIELD);
3493 static int decode_slice(struct AVCodecContext *avctx, void *arg){
3494 H264Context *h = *(void**)arg;
3495 MpegEncContext * const s = &h->s;
3496 const int part_mask= s->partitioned_frame ? (AC_END|AC_ERROR) : 0x7F;
3497 int lf_x_start = s->mb_x;
3501 h->is_complex = FRAME_MBAFF || s->picture_structure != PICT_FRAME || s->codec_id != CODEC_ID_H264 ||
3502 (CONFIG_GRAY && (s->flags&CODEC_FLAG_GRAY));
3504 if( h->pps.cabac ) {
3506 align_get_bits( &s->gb );
3509 ff_init_cabac_states( &h->cabac);
3510 ff_init_cabac_decoder( &h->cabac,
3511 s->gb.buffer + get_bits_count(&s->gb)/8,
3512 (get_bits_left(&s->gb) + 7)/8);
3514 ff_h264_init_cabac_states(h);
3518 int ret = ff_h264_decode_mb_cabac(h);
3520 //STOP_TIMER("decode_mb_cabac")
3522 if(ret>=0) ff_h264_hl_decode_mb(h);
3524 if( ret >= 0 && FRAME_MBAFF ) { //FIXME optimal? or let mb_decode decode 16x32 ?
3527 ret = ff_h264_decode_mb_cabac(h);
3529 if(ret>=0) ff_h264_hl_decode_mb(h);
3532 eos = get_cabac_terminate( &h->cabac );
3534 if((s->workaround_bugs & FF_BUG_TRUNCATED) && h->cabac.bytestream > h->cabac.bytestream_end + 2){
3535 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);
3536 if (s->mb_x >= lf_x_start) loop_filter(h, lf_x_start, s->mb_x + 1);
3539 if( ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 2) {
3540 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);
3541 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);
3545 if( ++s->mb_x >= s->mb_width ) {
3546 loop_filter(h, lf_x_start, s->mb_x);
3547 s->mb_x = lf_x_start = 0;
3548 decode_finish_row(h);
3550 if(FIELD_OR_MBAFF_PICTURE) {
3552 if(FRAME_MBAFF && s->mb_y < s->mb_height)
3553 predict_field_decoding_flag(h);
3557 if( eos || s->mb_y >= s->mb_height ) {
3558 tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
3559 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);
3560 if (s->mb_x > lf_x_start) loop_filter(h, lf_x_start, s->mb_x);
3567 int ret = ff_h264_decode_mb_cavlc(h);
3569 if(ret>=0) ff_h264_hl_decode_mb(h);
3571 if(ret>=0 && FRAME_MBAFF){ //FIXME optimal? or let mb_decode decode 16x32 ?
3573 ret = ff_h264_decode_mb_cavlc(h);
3575 if(ret>=0) ff_h264_hl_decode_mb(h);
3580 av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
3581 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);
3585 if(++s->mb_x >= s->mb_width){
3586 loop_filter(h, lf_x_start, s->mb_x);
3587 s->mb_x = lf_x_start = 0;
3588 decode_finish_row(h);
3590 if(FIELD_OR_MBAFF_PICTURE) {
3592 if(FRAME_MBAFF && s->mb_y < s->mb_height)
3593 predict_field_decoding_flag(h);
3595 if(s->mb_y >= s->mb_height){
3596 tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
3598 if(get_bits_count(&s->gb) == s->gb.size_in_bits ) {
3599 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);
3603 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);
3610 if(get_bits_count(&s->gb) >= s->gb.size_in_bits && s->mb_skip_run<=0){
3611 tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
3612 if(get_bits_count(&s->gb) == s->gb.size_in_bits ){
3613 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);
3614 if (s->mb_x > lf_x_start) loop_filter(h, lf_x_start, s->mb_x);
3618 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);
3628 * Call decode_slice() for each context.
3630 * @param h h264 master context
3631 * @param context_count number of contexts to execute
3633 static int execute_decode_slices(H264Context *h, int context_count){
3634 MpegEncContext * const s = &h->s;
3635 AVCodecContext * const avctx= s->avctx;
3639 if (s->avctx->hwaccel || s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
3641 if(context_count == 1) {
3642 return decode_slice(avctx, &h);
3644 for(i = 1; i < context_count; i++) {
3645 hx = h->thread_context[i];
3646 hx->s.error_recognition = avctx->error_recognition;
3647 hx->s.error_count = 0;
3650 avctx->execute(avctx, (void *)decode_slice,
3651 h->thread_context, NULL, context_count, sizeof(void*));
3653 /* pull back stuff from slices to master context */
3654 hx = h->thread_context[context_count - 1];
3655 s->mb_x = hx->s.mb_x;
3656 s->mb_y = hx->s.mb_y;
3657 s->dropable = hx->s.dropable;
3658 s->picture_structure = hx->s.picture_structure;
3659 for(i = 1; i < context_count; i++)
3660 h->s.error_count += h->thread_context[i]->s.error_count;
3667 static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){
3668 MpegEncContext * const s = &h->s;
3669 AVCodecContext * const avctx= s->avctx;
3670 H264Context *hx; ///< thread context
3674 int pass = !(avctx->active_thread_type & FF_THREAD_FRAME);
3675 int nals_needed=0; ///< number of NALs that need decoding before the next frame thread starts
3678 h->max_contexts = (HAVE_THREADS && (s->avctx->active_thread_type&FF_THREAD_SLICE)) ? avctx->thread_count : 1;
3679 if(!(s->flags2 & CODEC_FLAG2_CHUNKS)){
3680 h->current_slice = 0;
3681 if (!s->first_field)
3682 s->current_picture_ptr= NULL;
3683 ff_h264_reset_sei(h);
3686 for(;pass <= 1;pass++){
3689 next_avc = h->is_avc ? 0 : buf_size;
3699 if(buf_index >= next_avc) {
3700 if(buf_index >= buf_size) break;
3702 for(i = 0; i < h->nal_length_size; i++)
3703 nalsize = (nalsize << 8) | buf[buf_index++];
3704 if(nalsize <= 0 || nalsize > buf_size - buf_index){
3705 av_log(h->s.avctx, AV_LOG_ERROR, "AVC: nal size %d\n", nalsize);
3708 next_avc= buf_index + nalsize;
3710 // start code prefix search
3711 for(; buf_index + 3 < next_avc; buf_index++){
3712 // This should always succeed in the first iteration.
3713 if(buf[buf_index] == 0 && buf[buf_index+1] == 0 && buf[buf_index+2] == 1)
3717 if(buf_index+3 >= buf_size) break;
3720 if(buf_index >= next_avc) continue;
3723 hx = h->thread_context[context_count];
3725 ptr= ff_h264_decode_nal(hx, buf + buf_index, &dst_length, &consumed, next_avc - buf_index);
3726 if (ptr==NULL || dst_length < 0){
3729 i= buf_index + consumed;
3730 if((s->workaround_bugs & FF_BUG_AUTODETECT) && i+3<next_avc &&
3731 buf[i]==0x00 && buf[i+1]==0x00 && buf[i+2]==0x01 && buf[i+3]==0xE0)
3732 s->workaround_bugs |= FF_BUG_TRUNCATED;
3734 if(!(s->workaround_bugs & FF_BUG_TRUNCATED)){
3735 while(ptr[dst_length - 1] == 0 && dst_length > 0)
3738 bit_length= !dst_length ? 0 : (8*dst_length - ff_h264_decode_rbsp_trailing(h, ptr + dst_length - 1));
3740 if(s->avctx->debug&FF_DEBUG_STARTCODE){
3741 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);
3744 if (h->is_avc && (nalsize != consumed) && nalsize){
3745 av_log(h->s.avctx, AV_LOG_DEBUG, "AVC: Consumed only %d bytes instead of %d\n", consumed, nalsize);
3748 buf_index += consumed;
3752 // packets can sometimes contain multiple PPS/SPS
3753 // e.g. two PAFF field pictures in one packet, or a demuxer which splits NALs strangely
3754 // if so, when frame threading we can't start the next thread until we've read all of them
3755 switch (hx->nal_unit_type) {
3758 nals_needed = nal_index;
3762 init_get_bits(&hx->s.gb, ptr, bit_length);
3763 if (!get_ue_golomb(&hx->s.gb))
3764 nals_needed = nal_index;
3769 //FIXME do not discard SEI id
3770 if(avctx->skip_frame >= AVDISCARD_NONREF && h->nal_ref_idc == 0)
3775 switch(hx->nal_unit_type){
3777 if (h->nal_unit_type != NAL_IDR_SLICE) {
3778 av_log(h->s.avctx, AV_LOG_ERROR, "Invalid mix of idr and non-idr slices");
3781 idr(h); //FIXME ensure we don't loose some frames if there is reordering
3783 init_get_bits(&hx->s.gb, ptr, bit_length);
3785 hx->inter_gb_ptr= &hx->s.gb;
3786 hx->s.data_partitioning = 0;
3788 if((err = decode_slice_header(hx, h)))
3791 s->current_picture_ptr->f.key_frame |=
3792 (hx->nal_unit_type == NAL_IDR_SLICE) ||
3793 (h->sei_recovery_frame_cnt >= 0);
3795 if (h->current_slice == 1) {
3796 if(!(s->flags2 & CODEC_FLAG2_CHUNKS)) {
3797 decode_postinit(h, nal_index >= nals_needed);
3800 if (s->avctx->hwaccel && s->avctx->hwaccel->start_frame(s->avctx, NULL, 0) < 0)
3802 if(CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
3803 ff_vdpau_h264_picture_start(s);
3806 if(hx->redundant_pic_count==0
3807 && (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
3808 && (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type_nos!=AV_PICTURE_TYPE_B)
3809 && (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==AV_PICTURE_TYPE_I)
3810 && avctx->skip_frame < AVDISCARD_ALL){
3811 if(avctx->hwaccel) {
3812 if (avctx->hwaccel->decode_slice(avctx, &buf[buf_index - consumed], consumed) < 0)
3815 if(CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU){
3816 static const uint8_t start_code[] = {0x00, 0x00, 0x01};
3817 ff_vdpau_add_data_chunk(s, start_code, sizeof(start_code));
3818 ff_vdpau_add_data_chunk(s, &buf[buf_index - consumed], consumed );
3824 init_get_bits(&hx->s.gb, ptr, bit_length);
3826 hx->inter_gb_ptr= NULL;
3828 if ((err = decode_slice_header(hx, h)) < 0)
3831 hx->s.data_partitioning = 1;
3835 init_get_bits(&hx->intra_gb, ptr, bit_length);
3836 hx->intra_gb_ptr= &hx->intra_gb;
3839 init_get_bits(&hx->inter_gb, ptr, bit_length);
3840 hx->inter_gb_ptr= &hx->inter_gb;
3842 if(hx->redundant_pic_count==0 && hx->intra_gb_ptr && hx->s.data_partitioning
3843 && s->context_initialized
3844 && (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
3845 && (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type_nos!=AV_PICTURE_TYPE_B)
3846 && (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==AV_PICTURE_TYPE_I)
3847 && avctx->skip_frame < AVDISCARD_ALL)
3851 init_get_bits(&s->gb, ptr, bit_length);
3852 ff_h264_decode_sei(h);
3855 init_get_bits(&s->gb, ptr, bit_length);
3856 ff_h264_decode_seq_parameter_set(h);
3858 if (s->flags& CODEC_FLAG_LOW_DELAY ||
3859 (h->sps.bitstream_restriction_flag && !h->sps.num_reorder_frames))
3862 if(avctx->has_b_frames < 2)
3863 avctx->has_b_frames= !s->low_delay;
3865 if (avctx->bits_per_raw_sample != h->sps.bit_depth_luma ||
3866 h->cur_chroma_format_idc != h->sps.chroma_format_idc) {
3867 if (h->sps.bit_depth_luma >= 8 && h->sps.bit_depth_luma <= 10) {
3868 avctx->bits_per_raw_sample = h->sps.bit_depth_luma;
3869 h->cur_chroma_format_idc = h->sps.chroma_format_idc;
3870 h->pixel_shift = h->sps.bit_depth_luma > 8;
3872 ff_h264dsp_init(&h->h264dsp, h->sps.bit_depth_luma, h->sps.chroma_format_idc);
3873 ff_h264_pred_init(&h->hpc, s->codec_id, h->sps.bit_depth_luma, h->sps.chroma_format_idc);
3874 s->dsp.dct_bits = h->sps.bit_depth_luma > 8 ? 32 : 16;
3875 dsputil_init(&s->dsp, s->avctx);
3877 av_log(avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n", h->sps.bit_depth_luma);
3883 init_get_bits(&s->gb, ptr, bit_length);
3885 ff_h264_decode_picture_parameter_set(h, bit_length);
3889 case NAL_END_SEQUENCE:
3890 case NAL_END_STREAM:
3891 case NAL_FILLER_DATA:
3893 case NAL_AUXILIARY_SLICE:
3896 av_log(avctx, AV_LOG_DEBUG, "Unknown NAL code: %d (%d bits)\n", hx->nal_unit_type, bit_length);
3899 if(context_count == h->max_contexts) {
3900 execute_decode_slices(h, context_count);
3905 av_log(h->s.avctx, AV_LOG_ERROR, "decode_slice_header error\n");
3907 /* Slice could not be decoded in parallel mode, copy down
3908 * NAL unit stuff to context 0 and restart. Note that
3909 * rbsp_buffer is not transferred, but since we no longer
3910 * run in parallel mode this should not be an issue. */
3911 h->nal_unit_type = hx->nal_unit_type;
3912 h->nal_ref_idc = hx->nal_ref_idc;
3919 execute_decode_slices(h, context_count);
3924 * returns the number of bytes consumed for building the current frame
3926 static int get_consumed_bytes(MpegEncContext *s, int pos, int buf_size){
3927 if(pos==0) pos=1; //avoid infinite loops (i doubt that is needed but ...)
3928 if(pos+10>buf_size) pos=buf_size; // oops ;)
3933 static int decode_frame(AVCodecContext *avctx,
3934 void *data, int *data_size,
3937 const uint8_t *buf = avpkt->data;
3938 int buf_size = avpkt->size;
3939 H264Context *h = avctx->priv_data;
3940 MpegEncContext *s = &h->s;
3941 AVFrame *pict = data;
3944 s->flags= avctx->flags;
3945 s->flags2= avctx->flags2;
3947 /* end of stream, output what is still in the buffers */
3949 if (buf_size == 0) {
3953 s->current_picture_ptr = NULL;
3955 //FIXME factorize this with the output code below
3956 out = h->delayed_pic[0];
3958 for (i = 1; h->delayed_pic[i] && !h->delayed_pic[i]->f.key_frame && !h->delayed_pic[i]->mmco_reset; i++)
3959 if(h->delayed_pic[i]->poc < out->poc){
3960 out = h->delayed_pic[i];
3964 for(i=out_idx; h->delayed_pic[i]; i++)
3965 h->delayed_pic[i] = h->delayed_pic[i+1];
3968 *data_size = sizeof(AVFrame);
3969 *pict= *(AVFrame*)out;
3975 buf_index=decode_nal_units(h, buf, buf_size);
3979 if (!s->current_picture_ptr && h->nal_unit_type == NAL_END_SEQUENCE) {
3984 if(!(s->flags2 & CODEC_FLAG2_CHUNKS) && !s->current_picture_ptr){
3985 if (avctx->skip_frame >= AVDISCARD_NONREF)
3987 av_log(avctx, AV_LOG_ERROR, "no frame!\n");
3991 if(!(s->flags2 & CODEC_FLAG2_CHUNKS) || (s->mb_y >= s->mb_height && s->mb_height)){
3993 if(s->flags2 & CODEC_FLAG2_CHUNKS) decode_postinit(h, 1);
3997 if (!h->next_output_pic) {
3998 /* Wait for second field. */
4002 *data_size = sizeof(AVFrame);
4003 *pict = *(AVFrame*)h->next_output_pic;
4007 assert(pict->data[0] || !*data_size);
4008 ff_print_debug_info(s, pict);
4009 //printf("out %d\n", (int)pict->data[0]);
4011 return get_consumed_bytes(s, buf_index, buf_size);
4014 static inline void fill_mb_avail(H264Context *h){
4015 MpegEncContext * const s = &h->s;
4016 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
4019 h->mb_avail[0]= s->mb_x && h->slice_table[mb_xy - s->mb_stride - 1] == h->slice_num;
4020 h->mb_avail[1]= h->slice_table[mb_xy - s->mb_stride ] == h->slice_num;
4021 h->mb_avail[2]= s->mb_x+1 < s->mb_width && h->slice_table[mb_xy - s->mb_stride + 1] == h->slice_num;
4027 h->mb_avail[3]= s->mb_x && h->slice_table[mb_xy - 1] == h->slice_num;
4028 h->mb_avail[4]= 1; //FIXME move out
4029 h->mb_avail[5]= 0; //FIXME move out
4037 #define SIZE (COUNT*40)
4043 // int int_temp[10000];
4045 AVCodecContext avctx;
4047 dsputil_init(&dsp, &avctx);
4049 init_put_bits(&pb, temp, SIZE);
4050 printf("testing unsigned exp golomb\n");
4051 for(i=0; i<COUNT; i++){
4053 set_ue_golomb(&pb, i);
4054 STOP_TIMER("set_ue_golomb");
4056 flush_put_bits(&pb);
4058 init_get_bits(&gb, temp, 8*SIZE);
4059 for(i=0; i<COUNT; i++){
4062 s= show_bits(&gb, 24);
4065 j= get_ue_golomb(&gb);
4067 printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
4070 STOP_TIMER("get_ue_golomb");
4074 init_put_bits(&pb, temp, SIZE);
4075 printf("testing signed exp golomb\n");
4076 for(i=0; i<COUNT; i++){
4078 set_se_golomb(&pb, i - COUNT/2);
4079 STOP_TIMER("set_se_golomb");
4081 flush_put_bits(&pb);
4083 init_get_bits(&gb, temp, 8*SIZE);
4084 for(i=0; i<COUNT; i++){
4087 s= show_bits(&gb, 24);
4090 j= get_se_golomb(&gb);
4091 if(j != i - COUNT/2){
4092 printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
4095 STOP_TIMER("get_se_golomb");
4098 printf("Testing RBSP\n");
4106 av_cold void ff_h264_free_context(H264Context *h)
4110 free_tables(h, 1); //FIXME cleanup init stuff perhaps
4112 for(i = 0; i < MAX_SPS_COUNT; i++)
4113 av_freep(h->sps_buffers + i);
4115 for(i = 0; i < MAX_PPS_COUNT; i++)
4116 av_freep(h->pps_buffers + i);
4119 av_cold int ff_h264_decode_end(AVCodecContext *avctx)
4121 H264Context *h = avctx->priv_data;
4122 MpegEncContext *s = &h->s;
4124 ff_h264_free_context(h);
4128 // memset(h, 0, sizeof(H264Context));
4133 static const AVProfile profiles[] = {
4134 { FF_PROFILE_H264_BASELINE, "Baseline" },
4135 { FF_PROFILE_H264_CONSTRAINED_BASELINE, "Constrained Baseline" },
4136 { FF_PROFILE_H264_MAIN, "Main" },
4137 { FF_PROFILE_H264_EXTENDED, "Extended" },
4138 { FF_PROFILE_H264_HIGH, "High" },
4139 { FF_PROFILE_H264_HIGH_10, "High 10" },
4140 { FF_PROFILE_H264_HIGH_10_INTRA, "High 10 Intra" },
4141 { FF_PROFILE_H264_HIGH_422, "High 4:2:2" },
4142 { FF_PROFILE_H264_HIGH_422_INTRA, "High 4:2:2 Intra" },
4143 { FF_PROFILE_H264_HIGH_444, "High 4:4:4" },
4144 { FF_PROFILE_H264_HIGH_444_PREDICTIVE, "High 4:4:4 Predictive" },
4145 { FF_PROFILE_H264_HIGH_444_INTRA, "High 4:4:4 Intra" },
4146 { FF_PROFILE_H264_CAVLC_444, "CAVLC 4:4:4" },
4147 { FF_PROFILE_UNKNOWN },
4150 AVCodec ff_h264_decoder = {
4152 .type = AVMEDIA_TYPE_VIDEO,
4153 .id = CODEC_ID_H264,
4154 .priv_data_size = sizeof(H264Context),
4155 .init = ff_h264_decode_init,
4156 .close = ff_h264_decode_end,
4157 .decode = decode_frame,
4158 .capabilities = /*CODEC_CAP_DRAW_HORIZ_BAND |*/ CODEC_CAP_DR1 | CODEC_CAP_DELAY |
4159 CODEC_CAP_SLICE_THREADS | CODEC_CAP_FRAME_THREADS,
4161 .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
4162 .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy),
4163 .update_thread_context = ONLY_IF_THREADS_ENABLED(decode_update_thread_context),
4164 .profiles = NULL_IF_CONFIG_SMALL(profiles),
4167 #if CONFIG_H264_VDPAU_DECODER
4168 AVCodec ff_h264_vdpau_decoder = {
4169 .name = "h264_vdpau",
4170 .type = AVMEDIA_TYPE_VIDEO,
4171 .id = CODEC_ID_H264,
4172 .priv_data_size = sizeof(H264Context),
4173 .init = ff_h264_decode_init,
4174 .close = ff_h264_decode_end,
4175 .decode = decode_frame,
4176 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU,
4178 .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)"),
4179 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_VDPAU_H264, PIX_FMT_NONE},
4180 .profiles = NULL_IF_CONFIG_SMALL(profiles),