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[] = {
65 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
67 int ff_h264_check_intra4x4_pred_mode(H264Context *h){
68 MpegEncContext * const s = &h->s;
69 static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0};
70 static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED};
73 if(!(h->top_samples_available&0x8000)){
75 int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ];
77 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);
80 h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
85 if((h->left_samples_available&0x8888)!=0x8888){
86 static const int mask[4]={0x8000,0x2000,0x80,0x20};
88 if(!(h->left_samples_available&mask[i])){
89 int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ];
91 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);
94 h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status;
101 } //FIXME cleanup like ff_h264_check_intra_pred_mode
104 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
106 int ff_h264_check_intra_pred_mode(H264Context *h, int mode){
107 MpegEncContext * const s = &h->s;
108 static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
109 static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
112 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);
116 if(!(h->top_samples_available&0x8000)){
119 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);
124 if((h->left_samples_available&0x8080) != 0x8080){
126 if(h->left_samples_available&0x8080){ //mad cow disease mode, aka MBAFF + constrained_intra_pred
127 mode= ALZHEIMER_DC_L0T_PRED8x8 + (!(h->left_samples_available&0x8000)) + 2*(mode == DC_128_PRED8x8);
130 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);
138 const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length){
143 // src[0]&0x80; //forbidden bit
144 h->nal_ref_idc= src[0]>>5;
145 h->nal_unit_type= src[0]&0x1F;
149 #if HAVE_FAST_UNALIGNED
152 for(i=0; i+1<length; i+=9){
153 if(!((~AV_RN64A(src+i) & (AV_RN64A(src+i) - 0x0100010001000101ULL)) & 0x8000800080008080ULL))
156 for(i=0; i+1<length; i+=5){
157 if(!((~AV_RN32A(src+i) & (AV_RN32A(src+i) - 0x01000101U)) & 0x80008080U))
160 if(i>0 && !src[i]) i--;
164 for(i=0; i+1<length; i+=2){
166 if(i>0 && src[i-1]==0) i--;
168 if(i+2<length && src[i+1]==0 && src[i+2]<=3){
170 /* startcode, so we must be past the end */
178 if(i>=length-1){ //no escaped 0
180 *consumed= length+1; //+1 for the header
184 bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data
185 av_fast_malloc(&h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length+FF_INPUT_BUFFER_PADDING_SIZE);
186 dst= h->rbsp_buffer[bufidx];
192 //printf("decoding esc\n");
196 //remove escapes (very rare 1:2^22)
198 dst[di++]= src[si++];
199 dst[di++]= src[si++];
200 }else if(src[si]==0 && src[si+1]==0){
201 if(src[si+2]==3){ //escape
206 }else //next start code
210 dst[di++]= src[si++];
213 dst[di++]= src[si++];
216 memset(dst+di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
219 *consumed= si + 1;//+1 for the header
220 //FIXME store exact number of bits in the getbitcontext (it is needed for decoding)
225 * Identify the exact end of the bitstream
226 * @return the length of the trailing, or 0 if damaged
228 static int ff_h264_decode_rbsp_trailing(H264Context *h, const uint8_t *src){
232 tprintf(h->s.avctx, "rbsp trailing %X\n", v);
241 static inline int get_lowest_part_list_y(H264Context *h, Picture *pic, int n, int height,
242 int y_offset, int list){
243 int raw_my= h->mv_cache[list][ scan8[n] ][1];
244 int filter_height= (raw_my&3) ? 2 : 0;
245 int full_my= (raw_my>>2) + y_offset;
246 int top = full_my - filter_height, bottom = full_my + height + filter_height;
248 return FFMAX(abs(top), bottom);
251 static inline void get_lowest_part_y(H264Context *h, int refs[2][48], int n, int height,
252 int y_offset, int list0, int list1, int *nrefs){
253 MpegEncContext * const s = &h->s;
256 y_offset += 16*(s->mb_y >> MB_FIELD);
259 int ref_n = h->ref_cache[0][ scan8[n] ];
260 Picture *ref= &h->ref_list[0][ref_n];
262 // Error resilience puts the current picture in the ref list.
263 // Don't try to wait on these as it will cause a deadlock.
264 // Fields can wait on each other, though.
265 if (ref->f.thread_opaque != s->current_picture.f.thread_opaque ||
266 (ref->f.reference & 3) != s->picture_structure) {
267 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 0);
268 if (refs[0][ref_n] < 0) nrefs[0] += 1;
269 refs[0][ref_n] = FFMAX(refs[0][ref_n], my);
274 int ref_n = h->ref_cache[1][ scan8[n] ];
275 Picture *ref= &h->ref_list[1][ref_n];
277 if (ref->f.thread_opaque != s->current_picture.f.thread_opaque ||
278 (ref->f.reference & 3) != s->picture_structure) {
279 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 1);
280 if (refs[1][ref_n] < 0) nrefs[1] += 1;
281 refs[1][ref_n] = FFMAX(refs[1][ref_n], my);
287 * Wait until all reference frames are available for MC operations.
289 * @param h the H264 context
291 static void await_references(H264Context *h){
292 MpegEncContext * const s = &h->s;
293 const int mb_xy= h->mb_xy;
294 const int mb_type = s->current_picture.f.mb_type[mb_xy];
299 memset(refs, -1, sizeof(refs));
301 if(IS_16X16(mb_type)){
302 get_lowest_part_y(h, refs, 0, 16, 0,
303 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
304 }else if(IS_16X8(mb_type)){
305 get_lowest_part_y(h, refs, 0, 8, 0,
306 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
307 get_lowest_part_y(h, refs, 8, 8, 8,
308 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
309 }else if(IS_8X16(mb_type)){
310 get_lowest_part_y(h, refs, 0, 16, 0,
311 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
312 get_lowest_part_y(h, refs, 4, 16, 0,
313 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
317 assert(IS_8X8(mb_type));
320 const int sub_mb_type= h->sub_mb_type[i];
322 int y_offset= (i&2)<<2;
324 if(IS_SUB_8X8(sub_mb_type)){
325 get_lowest_part_y(h, refs, n , 8, y_offset,
326 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
327 }else if(IS_SUB_8X4(sub_mb_type)){
328 get_lowest_part_y(h, refs, n , 4, y_offset,
329 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
330 get_lowest_part_y(h, refs, n+2, 4, y_offset+4,
331 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
332 }else if(IS_SUB_4X8(sub_mb_type)){
333 get_lowest_part_y(h, refs, n , 8, y_offset,
334 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
335 get_lowest_part_y(h, refs, n+1, 8, y_offset,
336 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
339 assert(IS_SUB_4X4(sub_mb_type));
341 int sub_y_offset= y_offset + 2*(j&2);
342 get_lowest_part_y(h, refs, n+j, 4, sub_y_offset,
343 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1), nrefs);
349 for(list=h->list_count-1; list>=0; list--){
350 for(ref=0; ref<48 && nrefs[list]; ref++){
351 int row = refs[list][ref];
353 Picture *ref_pic = &h->ref_list[list][ref];
354 int ref_field = ref_pic->f.reference - 1;
355 int ref_field_picture = ref_pic->field_picture;
356 int pic_height = 16*s->mb_height >> ref_field_picture;
361 if(!FIELD_PICTURE && ref_field_picture){ // frame referencing two fields
362 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN((row >> 1) - !(row&1), pic_height-1), 1);
363 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN((row >> 1) , pic_height-1), 0);
364 }else if(FIELD_PICTURE && !ref_field_picture){ // field referencing one field of a frame
365 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row*2 + ref_field , pic_height-1), 0);
366 }else if(FIELD_PICTURE){
367 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row, pic_height-1), ref_field);
369 ff_thread_await_progress((AVFrame*)ref_pic, FFMIN(row, pic_height-1), 0);
378 * DCT transforms the 16 dc values.
379 * @param qp quantization parameter ??? FIXME
381 static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
382 // const int qmul= dequant_coeff[qp][0];
384 int temp[16]; //FIXME check if this is a good idea
385 static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
386 static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
389 const int offset= y_offset[i];
390 const int z0= block[offset+stride*0] + block[offset+stride*4];
391 const int z1= block[offset+stride*0] - block[offset+stride*4];
392 const int z2= block[offset+stride*1] - block[offset+stride*5];
393 const int z3= block[offset+stride*1] + block[offset+stride*5];
402 const int offset= x_offset[i];
403 const int z0= temp[4*0+i] + temp[4*2+i];
404 const int z1= temp[4*0+i] - temp[4*2+i];
405 const int z2= temp[4*1+i] - temp[4*3+i];
406 const int z3= temp[4*1+i] + temp[4*3+i];
408 block[stride*0 +offset]= (z0 + z3)>>1;
409 block[stride*2 +offset]= (z1 + z2)>>1;
410 block[stride*8 +offset]= (z1 - z2)>>1;
411 block[stride*10+offset]= (z0 - z3)>>1;
420 static void chroma_dc_dct_c(DCTELEM *block){
421 const int stride= 16*2;
422 const int xStride= 16;
425 a= block[stride*0 + xStride*0];
426 b= block[stride*0 + xStride*1];
427 c= block[stride*1 + xStride*0];
428 d= block[stride*1 + xStride*1];
435 block[stride*0 + xStride*0]= (a+c);
436 block[stride*0 + xStride*1]= (e+b);
437 block[stride*1 + xStride*0]= (a-c);
438 block[stride*1 + xStride*1]= (e-b);
442 static av_always_inline void
443 mc_dir_part(H264Context *h, Picture *pic, int n, int square,
444 int height, int delta, int list,
445 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
446 int src_x_offset, int src_y_offset,
447 qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op,
448 int pixel_shift, int chroma_idc)
450 MpegEncContext * const s = &h->s;
451 const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8;
452 int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8;
453 const int luma_xy= (mx&3) + ((my&3)<<2);
454 int offset = ((mx>>2) << pixel_shift) + (my>>2)*h->mb_linesize;
455 uint8_t * src_y = pic->f.data[0] + offset;
456 uint8_t * src_cb, * src_cr;
457 int extra_width= h->emu_edge_width;
458 int extra_height= h->emu_edge_height;
460 const int full_mx= mx>>2;
461 const int full_my= my>>2;
462 const int pic_width = 16*s->mb_width;
463 const int pic_height = 16*s->mb_height >> MB_FIELD;
466 if(mx&7) extra_width -= 3;
467 if(my&7) extra_height -= 3;
469 if( full_mx < 0-extra_width
470 || full_my < 0-extra_height
471 || full_mx + 16/*FIXME*/ > pic_width + extra_width
472 || full_my + 16/*FIXME*/ > pic_height + extra_height){
473 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_y - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
474 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
475 src_y= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
479 qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); //FIXME try variable height perhaps?
481 qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize);
484 if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return;
486 if(chroma_idc == 3 /* yuv444 */){
487 src_cb = pic->f.data[1] + offset;
489 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cb - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
490 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
491 src_cb= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
493 qpix_op[luma_xy](dest_cb, src_cb, h->mb_linesize); //FIXME try variable height perhaps?
495 qpix_op[luma_xy](dest_cb + delta, src_cb + delta, h->mb_linesize);
498 src_cr = pic->f.data[2] + offset;
500 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cr - (2 << pixel_shift) - 2*h->mb_linesize, h->mb_linesize,
501 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
502 src_cr= s->edge_emu_buffer + (2 << pixel_shift) + 2*h->mb_linesize;
504 qpix_op[luma_xy](dest_cr, src_cr, h->mb_linesize); //FIXME try variable height perhaps?
506 qpix_op[luma_xy](dest_cr + delta, src_cr + delta, h->mb_linesize);
511 ysh = 3 - (chroma_idc == 2 /* yuv422 */);
512 if(chroma_idc == 1 /* yuv420 */ && MB_FIELD){
513 // chroma offset when predicting from a field of opposite parity
514 my += 2 * ((s->mb_y & 1) - (pic->f.reference - 1));
515 emu |= (my>>3) < 0 || (my>>3) + 8 >= (pic_height>>1);
518 src_cb = pic->f.data[1] + ((mx >> 3) << pixel_shift) + (my >> ysh) * h->mb_uvlinesize;
519 src_cr = pic->f.data[2] + ((mx >> 3) << pixel_shift) + (my >> ysh) * h->mb_uvlinesize;
522 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cb, h->mb_uvlinesize,
523 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
524 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
525 src_cb= s->edge_emu_buffer;
527 chroma_op(dest_cb, src_cb, h->mb_uvlinesize, height >> (chroma_idc == 1 /* yuv420 */),
528 mx&7, (my << (chroma_idc == 2 /* yuv422 */)) &7);
531 s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cr, h->mb_uvlinesize,
532 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
533 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
534 src_cr= s->edge_emu_buffer;
536 chroma_op(dest_cr, src_cr, h->mb_uvlinesize, height >> (chroma_idc == 1 /* yuv420 */),
537 mx&7, (my << (chroma_idc == 2 /* yuv422 */)) &7);
540 static av_always_inline void
541 mc_part_std(H264Context *h, int n, int square, int height, int delta,
542 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
543 int x_offset, int y_offset,
544 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
545 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
546 int list0, int list1, int pixel_shift, int chroma_idc)
548 MpegEncContext * const s = &h->s;
549 qpel_mc_func *qpix_op= qpix_put;
550 h264_chroma_mc_func chroma_op= chroma_put;
552 dest_y += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
553 if (chroma_idc == 3 /* yuv444 */) {
554 dest_cb += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
555 dest_cr += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
556 } else if (chroma_idc == 2 /* yuv422 */) {
557 dest_cb += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
558 dest_cr += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
559 } else /* yuv420 */ {
560 dest_cb += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
561 dest_cr += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
563 x_offset += 8*s->mb_x;
564 y_offset += 8*(s->mb_y >> MB_FIELD);
567 Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ];
568 mc_dir_part(h, ref, n, square, height, delta, 0,
569 dest_y, dest_cb, dest_cr, x_offset, y_offset,
570 qpix_op, chroma_op, pixel_shift, chroma_idc);
573 chroma_op= chroma_avg;
577 Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ];
578 mc_dir_part(h, ref, n, square, height, delta, 1,
579 dest_y, dest_cb, dest_cr, x_offset, y_offset,
580 qpix_op, chroma_op, pixel_shift, chroma_idc);
584 static av_always_inline void
585 mc_part_weighted(H264Context *h, int n, int square, int height, int delta,
586 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
587 int x_offset, int y_offset,
588 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
589 h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op,
590 h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg,
591 int list0, int list1, int pixel_shift, int chroma_idc){
592 MpegEncContext * const s = &h->s;
595 dest_y += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
596 if (chroma_idc == 3 /* yuv444 */) {
597 chroma_height = height;
598 chroma_weight_avg = luma_weight_avg;
599 chroma_weight_op = luma_weight_op;
600 dest_cb += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
601 dest_cr += (2*x_offset << pixel_shift) + 2*y_offset*h->mb_linesize;
602 } else if (chroma_idc == 2 /* yuv422 */) {
603 chroma_height = height;
604 dest_cb += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
605 dest_cr += ( x_offset << pixel_shift) + 2*y_offset*h->mb_uvlinesize;
606 } else /* yuv420 */ {
607 chroma_height = height >> 1;
608 dest_cb += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
609 dest_cr += ( x_offset << pixel_shift) + y_offset*h->mb_uvlinesize;
611 x_offset += 8*s->mb_x;
612 y_offset += 8*(s->mb_y >> MB_FIELD);
615 /* don't optimize for luma-only case, since B-frames usually
616 * use implicit weights => chroma too. */
617 uint8_t *tmp_cb = s->obmc_scratchpad;
618 uint8_t *tmp_cr = s->obmc_scratchpad + (16 << pixel_shift);
619 uint8_t *tmp_y = s->obmc_scratchpad + 16*h->mb_uvlinesize;
620 int refn0 = h->ref_cache[0][ scan8[n] ];
621 int refn1 = h->ref_cache[1][ scan8[n] ];
623 mc_dir_part(h, &h->ref_list[0][refn0], n, square, height, delta, 0,
624 dest_y, dest_cb, dest_cr,
625 x_offset, y_offset, qpix_put, chroma_put,
626 pixel_shift, chroma_idc);
627 mc_dir_part(h, &h->ref_list[1][refn1], n, square, height, delta, 1,
628 tmp_y, tmp_cb, tmp_cr,
629 x_offset, y_offset, qpix_put, chroma_put,
630 pixel_shift, chroma_idc);
632 if(h->use_weight == 2){
633 int weight0 = h->implicit_weight[refn0][refn1][s->mb_y&1];
634 int weight1 = 64 - weight0;
635 luma_weight_avg( dest_y, tmp_y, h-> mb_linesize,
636 height, 5, weight0, weight1, 0);
637 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize,
638 chroma_height, 5, weight0, weight1, 0);
639 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize,
640 chroma_height, 5, weight0, weight1, 0);
642 luma_weight_avg(dest_y, tmp_y, h->mb_linesize, height, h->luma_log2_weight_denom,
643 h->luma_weight[refn0][0][0] , h->luma_weight[refn1][1][0],
644 h->luma_weight[refn0][0][1] + h->luma_weight[refn1][1][1]);
645 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
646 h->chroma_weight[refn0][0][0][0] , h->chroma_weight[refn1][1][0][0],
647 h->chroma_weight[refn0][0][0][1] + h->chroma_weight[refn1][1][0][1]);
648 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
649 h->chroma_weight[refn0][0][1][0] , h->chroma_weight[refn1][1][1][0],
650 h->chroma_weight[refn0][0][1][1] + h->chroma_weight[refn1][1][1][1]);
653 int list = list1 ? 1 : 0;
654 int refn = h->ref_cache[list][ scan8[n] ];
655 Picture *ref= &h->ref_list[list][refn];
656 mc_dir_part(h, ref, n, square, height, delta, list,
657 dest_y, dest_cb, dest_cr, x_offset, y_offset,
658 qpix_put, chroma_put, pixel_shift, chroma_idc);
660 luma_weight_op(dest_y, h->mb_linesize, height, h->luma_log2_weight_denom,
661 h->luma_weight[refn][list][0], h->luma_weight[refn][list][1]);
662 if(h->use_weight_chroma){
663 chroma_weight_op(dest_cb, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
664 h->chroma_weight[refn][list][0][0], h->chroma_weight[refn][list][0][1]);
665 chroma_weight_op(dest_cr, h->mb_uvlinesize, chroma_height, h->chroma_log2_weight_denom,
666 h->chroma_weight[refn][list][1][0], h->chroma_weight[refn][list][1][1]);
671 static av_always_inline void
672 mc_part(H264Context *h, int n, int square, int height, int delta,
673 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
674 int x_offset, int y_offset,
675 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
676 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
677 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
678 int list0, int list1, int pixel_shift, int chroma_idc)
680 if((h->use_weight==2 && list0 && list1
681 && (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ][h->s.mb_y&1] != 32))
683 mc_part_weighted(h, n, square, height, delta, dest_y, dest_cb, dest_cr,
684 x_offset, y_offset, qpix_put, chroma_put,
685 weight_op[0], weight_op[1], weight_avg[0],
686 weight_avg[1], list0, list1, pixel_shift, chroma_idc);
688 mc_part_std(h, n, square, height, delta, dest_y, dest_cb, dest_cr,
689 x_offset, y_offset, qpix_put, chroma_put, qpix_avg,
690 chroma_avg, list0, list1, pixel_shift, chroma_idc);
693 static av_always_inline void
694 prefetch_motion(H264Context *h, int list, int pixel_shift, int chroma_idc)
696 /* fetch pixels for estimated mv 4 macroblocks ahead
697 * optimized for 64byte cache lines */
698 MpegEncContext * const s = &h->s;
699 const int refn = h->ref_cache[list][scan8[0]];
701 const int mx= (h->mv_cache[list][scan8[0]][0]>>2) + 16*s->mb_x + 8;
702 const int my= (h->mv_cache[list][scan8[0]][1]>>2) + 16*s->mb_y;
703 uint8_t **src = h->ref_list[list][refn].f.data;
704 int off= (mx << pixel_shift) + (my + (s->mb_x&3)*4)*h->mb_linesize + (64 << pixel_shift);
705 s->dsp.prefetch(src[0]+off, s->linesize, 4);
706 if (chroma_idc == 3 /* yuv444 */) {
707 s->dsp.prefetch(src[1]+off, s->linesize, 4);
708 s->dsp.prefetch(src[2]+off, s->linesize, 4);
710 off= ((mx>>1) << pixel_shift) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + (64 << pixel_shift);
711 s->dsp.prefetch(src[1]+off, src[2]-src[1], 2);
716 static av_always_inline void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
717 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
718 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
719 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
720 int pixel_shift, int chroma_idc)
722 MpegEncContext * const s = &h->s;
723 const int mb_xy= h->mb_xy;
724 const int mb_type = s->current_picture.f.mb_type[mb_xy];
726 assert(IS_INTER(mb_type));
728 if(HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME))
730 prefetch_motion(h, 0, pixel_shift, chroma_idc);
732 if(IS_16X16(mb_type)){
733 mc_part(h, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0,
734 qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
735 weight_op, weight_avg,
736 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
737 pixel_shift, chroma_idc);
738 }else if(IS_16X8(mb_type)){
739 mc_part(h, 0, 0, 8, 8 << pixel_shift, dest_y, dest_cb, dest_cr, 0, 0,
740 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
741 weight_op, weight_avg,
742 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
743 pixel_shift, chroma_idc);
744 mc_part(h, 8, 0, 8, 8 << pixel_shift, dest_y, dest_cb, dest_cr, 0, 4,
745 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
746 weight_op, weight_avg,
747 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1),
748 pixel_shift, chroma_idc);
749 }else if(IS_8X16(mb_type)){
750 mc_part(h, 0, 0, 16, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
751 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
752 &weight_op[1], &weight_avg[1],
753 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1),
754 pixel_shift, chroma_idc);
755 mc_part(h, 4, 0, 16, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
756 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
757 &weight_op[1], &weight_avg[1],
758 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1),
759 pixel_shift, chroma_idc);
763 assert(IS_8X8(mb_type));
766 const int sub_mb_type= h->sub_mb_type[i];
768 int x_offset= (i&1)<<2;
769 int y_offset= (i&2)<<1;
771 if(IS_SUB_8X8(sub_mb_type)){
772 mc_part(h, n, 1, 8, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset,
773 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
774 &weight_op[1], &weight_avg[1],
775 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
776 pixel_shift, chroma_idc);
777 }else if(IS_SUB_8X4(sub_mb_type)){
778 mc_part(h, n , 0, 4, 4 << pixel_shift, dest_y, dest_cb, dest_cr, x_offset, y_offset,
779 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
780 &weight_op[1], &weight_avg[1],
781 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
782 pixel_shift, chroma_idc);
783 mc_part(h, n+2, 0, 4, 4 << pixel_shift, dest_y, dest_cb, dest_cr, x_offset, y_offset+2,
784 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
785 &weight_op[1], &weight_avg[1],
786 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
787 pixel_shift, chroma_idc);
788 }else if(IS_SUB_4X8(sub_mb_type)){
789 mc_part(h, n , 0, 8, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset,
790 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
791 &weight_op[2], &weight_avg[2],
792 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
793 pixel_shift, chroma_idc);
794 mc_part(h, n+1, 0, 8, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset,
795 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
796 &weight_op[2], &weight_avg[2],
797 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
798 pixel_shift, chroma_idc);
801 assert(IS_SUB_4X4(sub_mb_type));
803 int sub_x_offset= x_offset + 2*(j&1);
804 int sub_y_offset= y_offset + (j&2);
805 mc_part(h, n+j, 1, 4, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
806 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
807 &weight_op[2], &weight_avg[2],
808 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1),
809 pixel_shift, chroma_idc);
815 prefetch_motion(h, 1, pixel_shift, chroma_idc);
818 static av_always_inline void
819 hl_motion_420(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
820 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
821 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
822 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
825 hl_motion(h, dest_y, dest_cb, dest_cr, qpix_put, chroma_put,
826 qpix_avg, chroma_avg, weight_op, weight_avg, pixel_shift, 1);
829 static av_always_inline void
830 hl_motion_422(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
831 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
832 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
833 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
836 hl_motion(h, dest_y, dest_cb, dest_cr, qpix_put, chroma_put,
837 qpix_avg, chroma_avg, weight_op, weight_avg, pixel_shift, 2);
840 static void free_tables(H264Context *h, int free_rbsp){
844 av_freep(&h->intra4x4_pred_mode);
845 av_freep(&h->chroma_pred_mode_table);
846 av_freep(&h->cbp_table);
847 av_freep(&h->mvd_table[0]);
848 av_freep(&h->mvd_table[1]);
849 av_freep(&h->direct_table);
850 av_freep(&h->non_zero_count);
851 av_freep(&h->slice_table_base);
852 h->slice_table= NULL;
853 av_freep(&h->list_counts);
855 av_freep(&h->mb2b_xy);
856 av_freep(&h->mb2br_xy);
858 for(i = 0; i < MAX_THREADS; i++) {
859 hx = h->thread_context[i];
861 av_freep(&hx->top_borders[1]);
862 av_freep(&hx->top_borders[0]);
863 av_freep(&hx->s.obmc_scratchpad);
865 av_freep(&hx->rbsp_buffer[1]);
866 av_freep(&hx->rbsp_buffer[0]);
867 hx->rbsp_buffer_size[0] = 0;
868 hx->rbsp_buffer_size[1] = 0;
870 if (i) av_freep(&h->thread_context[i]);
874 static void init_dequant8_coeff_table(H264Context *h){
876 const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
879 h->dequant8_coeff[i] = h->dequant8_buffer[i];
881 if(!memcmp(h->pps.scaling_matrix8[j], h->pps.scaling_matrix8[i], 64*sizeof(uint8_t))){
882 h->dequant8_coeff[i] = h->dequant8_buffer[j];
889 for(q=0; q<max_qp+1; q++){
893 h->dequant8_coeff[i][q][(x>>3)|((x&7)<<3)] =
894 ((uint32_t)dequant8_coeff_init[idx][ dequant8_coeff_init_scan[((x>>1)&12) | (x&3)] ] *
895 h->pps.scaling_matrix8[i][x]) << shift;
900 static void init_dequant4_coeff_table(H264Context *h){
902 const int max_qp = 51 + 6*(h->sps.bit_depth_luma-8);
904 h->dequant4_coeff[i] = h->dequant4_buffer[i];
906 if(!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], 16*sizeof(uint8_t))){
907 h->dequant4_coeff[i] = h->dequant4_buffer[j];
914 for(q=0; q<max_qp+1; q++){
915 int shift = div6[q] + 2;
918 h->dequant4_coeff[i][q][(x>>2)|((x<<2)&0xF)] =
919 ((uint32_t)dequant4_coeff_init[idx][(x&1) + ((x>>2)&1)] *
920 h->pps.scaling_matrix4[i][x]) << shift;
925 static void init_dequant_tables(H264Context *h){
927 init_dequant4_coeff_table(h);
928 if(h->pps.transform_8x8_mode)
929 init_dequant8_coeff_table(h);
930 if(h->sps.transform_bypass){
933 h->dequant4_coeff[i][0][x] = 1<<6;
934 if(h->pps.transform_8x8_mode)
937 h->dequant8_coeff[i][0][x] = 1<<6;
942 int ff_h264_alloc_tables(H264Context *h){
943 MpegEncContext * const s = &h->s;
944 const int big_mb_num= s->mb_stride * (s->mb_height+1);
945 const int row_mb_num= 2*s->mb_stride*s->avctx->thread_count;
948 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->intra4x4_pred_mode, row_mb_num * 8 * sizeof(uint8_t), fail)
950 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->non_zero_count , big_mb_num * 48 * sizeof(uint8_t), fail)
951 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->slice_table_base , (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base), fail)
952 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->cbp_table, big_mb_num * sizeof(uint16_t), fail)
954 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t), fail)
955 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[0], 16*row_mb_num * sizeof(uint8_t), fail);
956 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[1], 16*row_mb_num * sizeof(uint8_t), fail);
957 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->direct_table, 4*big_mb_num * sizeof(uint8_t) , fail);
958 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->list_counts, big_mb_num * sizeof(uint8_t), fail)
960 memset(h->slice_table_base, -1, (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base));
961 h->slice_table= h->slice_table_base + s->mb_stride*2 + 1;
963 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2b_xy , big_mb_num * sizeof(uint32_t), fail);
964 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2br_xy , big_mb_num * sizeof(uint32_t), fail);
965 for(y=0; y<s->mb_height; y++){
966 for(x=0; x<s->mb_width; x++){
967 const int mb_xy= x + y*s->mb_stride;
968 const int b_xy = 4*x + 4*y*h->b_stride;
970 h->mb2b_xy [mb_xy]= b_xy;
971 h->mb2br_xy[mb_xy]= 8*(FMO ? mb_xy : (mb_xy % (2*s->mb_stride)));
975 s->obmc_scratchpad = NULL;
977 if(!h->dequant4_coeff[0])
978 init_dequant_tables(h);
987 * Mimic alloc_tables(), but for every context thread.
989 static void clone_tables(H264Context *dst, H264Context *src, int i){
990 MpegEncContext * const s = &src->s;
991 dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i*8*2*s->mb_stride;
992 dst->non_zero_count = src->non_zero_count;
993 dst->slice_table = src->slice_table;
994 dst->cbp_table = src->cbp_table;
995 dst->mb2b_xy = src->mb2b_xy;
996 dst->mb2br_xy = src->mb2br_xy;
997 dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
998 dst->mvd_table[0] = src->mvd_table[0] + i*8*2*s->mb_stride;
999 dst->mvd_table[1] = src->mvd_table[1] + i*8*2*s->mb_stride;
1000 dst->direct_table = src->direct_table;
1001 dst->list_counts = src->list_counts;
1003 dst->s.obmc_scratchpad = NULL;
1004 ff_h264_pred_init(&dst->hpc, src->s.codec_id, src->sps.bit_depth_luma, src->sps.chroma_format_idc);
1009 * Allocate buffers which are not shared amongst multiple threads.
1011 static int context_init(H264Context *h){
1012 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[0], h->s.mb_width * 16*3 * sizeof(uint8_t)*2, fail)
1013 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[1], h->s.mb_width * 16*3 * sizeof(uint8_t)*2, fail)
1015 h->ref_cache[0][scan8[5 ]+1] = h->ref_cache[0][scan8[7 ]+1] = h->ref_cache[0][scan8[13]+1] =
1016 h->ref_cache[1][scan8[5 ]+1] = h->ref_cache[1][scan8[7 ]+1] = h->ref_cache[1][scan8[13]+1] = PART_NOT_AVAILABLE;
1020 return -1; // free_tables will clean up for us
1023 static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size);
1025 static av_cold void common_init(H264Context *h){
1026 MpegEncContext * const s = &h->s;
1028 s->width = s->avctx->width;
1029 s->height = s->avctx->height;
1030 s->codec_id= s->avctx->codec->id;
1032 ff_h264dsp_init(&h->h264dsp, 8, 1);
1033 ff_h264_pred_init(&h->hpc, s->codec_id, 8, 1);
1035 h->dequant_coeff_pps= -1;
1036 s->unrestricted_mv=1;
1038 dsputil_init(&s->dsp, s->avctx); // needed so that idct permutation is known early
1040 memset(h->pps.scaling_matrix4, 16, 6*16*sizeof(uint8_t));
1041 memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t));
1044 int ff_h264_decode_extradata(H264Context *h)
1046 AVCodecContext *avctx = h->s.avctx;
1048 if(avctx->extradata[0] == 1){
1049 int i, cnt, nalsize;
1050 unsigned char *p = avctx->extradata;
1054 if(avctx->extradata_size < 7) {
1055 av_log(avctx, AV_LOG_ERROR, "avcC too short\n");
1058 /* sps and pps in the avcC always have length coded with 2 bytes,
1059 so put a fake nal_length_size = 2 while parsing them */
1060 h->nal_length_size = 2;
1061 // Decode sps from avcC
1062 cnt = *(p+5) & 0x1f; // Number of sps
1064 for (i = 0; i < cnt; i++) {
1065 nalsize = AV_RB16(p) + 2;
1066 if (p - avctx->extradata + nalsize > avctx->extradata_size)
1068 if(decode_nal_units(h, p, nalsize) < 0) {
1069 av_log(avctx, AV_LOG_ERROR, "Decoding sps %d from avcC failed\n", i);
1074 // Decode pps from avcC
1075 cnt = *(p++); // Number of pps
1076 for (i = 0; i < cnt; i++) {
1077 nalsize = AV_RB16(p) + 2;
1078 if (p - avctx->extradata + nalsize > avctx->extradata_size)
1080 if (decode_nal_units(h, p, nalsize) < 0) {
1081 av_log(avctx, AV_LOG_ERROR, "Decoding pps %d from avcC failed\n", i);
1086 // Now store right nal length size, that will be use to parse all other nals
1087 h->nal_length_size = (avctx->extradata[4] & 0x03) + 1;
1090 if(decode_nal_units(h, avctx->extradata, avctx->extradata_size) < 0)
1096 av_cold int ff_h264_decode_init(AVCodecContext *avctx){
1097 H264Context *h= avctx->priv_data;
1098 MpegEncContext * const s = &h->s;
1101 MPV_decode_defaults(s);
1106 s->out_format = FMT_H264;
1107 s->workaround_bugs= avctx->workaround_bugs;
1110 // s->decode_mb= ff_h263_decode_mb;
1111 s->quarter_sample = 1;
1112 if(!avctx->has_b_frames)
1115 avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
1117 ff_h264_decode_init_vlc();
1120 h->sps.bit_depth_luma = avctx->bits_per_raw_sample = 8;
1122 h->thread_context[0] = h;
1123 h->outputed_poc = h->next_outputed_poc = INT_MIN;
1124 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
1125 h->last_pocs[i] = INT_MIN;
1126 h->prev_poc_msb= 1<<16;
1128 ff_h264_reset_sei(h);
1129 if(avctx->codec_id == CODEC_ID_H264){
1130 if(avctx->ticks_per_frame == 1){
1131 s->avctx->time_base.den *=2;
1133 avctx->ticks_per_frame = 2;
1136 if(avctx->extradata_size > 0 && avctx->extradata &&
1137 ff_h264_decode_extradata(h))
1140 if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames < h->sps.num_reorder_frames){
1141 s->avctx->has_b_frames = h->sps.num_reorder_frames;
1148 #define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b)+(size))))
1149 static void copy_picture_range(Picture **to, Picture **from, int count, MpegEncContext *new_base, MpegEncContext *old_base)
1153 for (i=0; i<count; i++){
1154 assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) ||
1155 IN_RANGE(from[i], old_base->picture, sizeof(Picture) * old_base->picture_count) ||
1157 to[i] = REBASE_PICTURE(from[i], new_base, old_base);
1161 static void copy_parameter_set(void **to, void **from, int count, int size)
1165 for (i=0; i<count; i++){
1166 if (to[i] && !from[i]) av_freep(&to[i]);
1167 else if (from[i] && !to[i]) to[i] = av_malloc(size);
1169 if (from[i]) memcpy(to[i], from[i], size);
1173 static int decode_init_thread_copy(AVCodecContext *avctx){
1174 H264Context *h= avctx->priv_data;
1176 if (!avctx->internal->is_copy)
1178 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1179 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
1184 #define copy_fields(to, from, start_field, end_field) memcpy(&to->start_field, &from->start_field, (char*)&to->end_field - (char*)&to->start_field)
1185 static int decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src){
1186 H264Context *h= dst->priv_data, *h1= src->priv_data;
1187 MpegEncContext * const s = &h->s, * const s1 = &h1->s;
1188 int inited = s->context_initialized, err;
1191 if(dst == src || !s1->context_initialized) return 0;
1193 err = ff_mpeg_update_thread_context(dst, src);
1196 //FIXME handle width/height changing
1198 for(i = 0; i < MAX_SPS_COUNT; i++)
1199 av_freep(h->sps_buffers + i);
1201 for(i = 0; i < MAX_PPS_COUNT; i++)
1202 av_freep(h->pps_buffers + i);
1204 memcpy(&h->s + 1, &h1->s + 1, sizeof(H264Context) - sizeof(MpegEncContext)); //copy all fields after MpegEnc
1205 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1206 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
1207 if (ff_h264_alloc_tables(h) < 0) {
1208 av_log(dst, AV_LOG_ERROR, "Could not allocate memory for h264\n");
1209 return AVERROR(ENOMEM);
1214 h->rbsp_buffer[i] = NULL;
1215 h->rbsp_buffer_size[i] = 0;
1218 h->thread_context[0] = h;
1220 // frame_start may not be called for the next thread (if it's decoding a bottom field)
1221 // so this has to be allocated here
1222 h->s.obmc_scratchpad = av_malloc(16*6*s->linesize);
1224 s->dsp.clear_blocks(h->mb);
1225 s->dsp.clear_blocks(h->mb+(24*16<<h->pixel_shift));
1228 //extradata/NAL handling
1229 h->is_avc = h1->is_avc;
1232 copy_parameter_set((void**)h->sps_buffers, (void**)h1->sps_buffers, MAX_SPS_COUNT, sizeof(SPS));
1234 copy_parameter_set((void**)h->pps_buffers, (void**)h1->pps_buffers, MAX_PPS_COUNT, sizeof(PPS));
1237 //Dequantization matrices
1238 //FIXME these are big - can they be only copied when PPS changes?
1239 copy_fields(h, h1, dequant4_buffer, dequant4_coeff);
1242 h->dequant4_coeff[i] = h->dequant4_buffer[0] + (h1->dequant4_coeff[i] - h1->dequant4_buffer[0]);
1245 h->dequant8_coeff[i] = h->dequant8_buffer[0] + (h1->dequant8_coeff[i] - h1->dequant8_buffer[0]);
1247 h->dequant_coeff_pps = h1->dequant_coeff_pps;
1250 copy_fields(h, h1, poc_lsb, redundant_pic_count);
1253 copy_fields(h, h1, ref_count, list_count);
1254 copy_fields(h, h1, ref_list, intra_gb);
1255 copy_fields(h, h1, short_ref, cabac_init_idc);
1257 copy_picture_range(h->short_ref, h1->short_ref, 32, s, s1);
1258 copy_picture_range(h->long_ref, h1->long_ref, 32, s, s1);
1259 copy_picture_range(h->delayed_pic, h1->delayed_pic, MAX_DELAYED_PIC_COUNT+2, s, s1);
1261 h->last_slice_type = h1->last_slice_type;
1263 if(!s->current_picture_ptr) return 0;
1266 err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
1267 h->prev_poc_msb = h->poc_msb;
1268 h->prev_poc_lsb = h->poc_lsb;
1270 h->prev_frame_num_offset= h->frame_num_offset;
1271 h->prev_frame_num = h->frame_num;
1272 h->outputed_poc = h->next_outputed_poc;
1277 int ff_h264_frame_start(H264Context *h){
1278 MpegEncContext * const s = &h->s;
1280 const int pixel_shift = h->pixel_shift;
1281 int thread_count = (s->avctx->active_thread_type & FF_THREAD_SLICE) ? s->avctx->thread_count : 1;
1283 if(MPV_frame_start(s, s->avctx) < 0)
1285 ff_er_frame_start(s);
1287 * MPV_frame_start uses pict_type to derive key_frame.
1288 * This is incorrect for H.264; IDR markings must be used.
1289 * Zero here; IDR markings per slice in frame or fields are ORed in later.
1290 * See decode_nal_units().
1292 s->current_picture_ptr->f.key_frame = 0;
1293 s->current_picture_ptr->mmco_reset= 0;
1295 assert(s->linesize && s->uvlinesize);
1297 for(i=0; i<16; i++){
1298 h->block_offset[i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 4*s->linesize*((scan8[i] - scan8[0])>>3);
1299 h->block_offset[48+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 8*s->linesize*((scan8[i] - scan8[0])>>3);
1301 for(i=0; i<16; i++){
1302 h->block_offset[16+i]=
1303 h->block_offset[32+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3);
1304 h->block_offset[48+16+i]=
1305 h->block_offset[48+32+i]= (4*((scan8[i] - scan8[0])&7) << pixel_shift) + 8*s->uvlinesize*((scan8[i] - scan8[0])>>3);
1308 /* can't be in alloc_tables because linesize isn't known there.
1309 * FIXME: redo bipred weight to not require extra buffer? */
1310 for(i = 0; i < thread_count; i++)
1311 if(h->thread_context[i] && !h->thread_context[i]->s.obmc_scratchpad)
1312 h->thread_context[i]->s.obmc_scratchpad = av_malloc(16*6*s->linesize);
1314 /* some macroblocks can be accessed before they're available in case of lost slices, mbaff or threading*/
1315 memset(h->slice_table, -1, (s->mb_height*s->mb_stride-1) * sizeof(*h->slice_table));
1317 // s->decode = (s->flags & CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.f.reference /*|| h->contains_intra*/ || 1;
1319 // We mark the current picture as non-reference after allocating it, so
1320 // that if we break out due to an error it can be released automatically
1321 // in the next MPV_frame_start().
1322 // SVQ3 as well as most other codecs have only last/next/current and thus
1323 // get released even with set reference, besides SVQ3 and others do not
1324 // mark frames as reference later "naturally".
1325 if(s->codec_id != CODEC_ID_SVQ3)
1326 s->current_picture_ptr->f.reference = 0;
1328 s->current_picture_ptr->field_poc[0]=
1329 s->current_picture_ptr->field_poc[1]= INT_MAX;
1331 h->next_output_pic = NULL;
1333 assert(s->current_picture_ptr->long_ref==0);
1339 * Run setup operations that must be run after slice header decoding.
1340 * This includes finding the next displayed frame.
1342 * @param h h264 master context
1343 * @param setup_finished enough NALs have been read that we can call
1344 * ff_thread_finish_setup()
1346 static void decode_postinit(H264Context *h, int setup_finished){
1347 MpegEncContext * const s = &h->s;
1348 Picture *out = s->current_picture_ptr;
1349 Picture *cur = s->current_picture_ptr;
1350 int i, pics, out_of_order, out_idx;
1351 int invalid = 0, cnt = 0;
1353 s->current_picture_ptr->f.qscale_type = FF_QSCALE_TYPE_H264;
1354 s->current_picture_ptr->f.pict_type = s->pict_type;
1356 if (h->next_output_pic) return;
1358 if (cur->field_poc[0]==INT_MAX || cur->field_poc[1]==INT_MAX) {
1359 //FIXME: if we have two PAFF fields in one packet, we can't start the next thread here.
1360 //If we have one field per packet, we can. The check in decode_nal_units() is not good enough
1361 //to find this yet, so we assume the worst for now.
1362 //if (setup_finished)
1363 // ff_thread_finish_setup(s->avctx);
1367 cur->f.interlaced_frame = 0;
1368 cur->f.repeat_pict = 0;
1370 /* Signal interlacing information externally. */
1371 /* Prioritize picture timing SEI information over used decoding process if it exists. */
1373 if(h->sps.pic_struct_present_flag){
1374 switch (h->sei_pic_struct)
1376 case SEI_PIC_STRUCT_FRAME:
1378 case SEI_PIC_STRUCT_TOP_FIELD:
1379 case SEI_PIC_STRUCT_BOTTOM_FIELD:
1380 cur->f.interlaced_frame = 1;
1382 case SEI_PIC_STRUCT_TOP_BOTTOM:
1383 case SEI_PIC_STRUCT_BOTTOM_TOP:
1384 if (FIELD_OR_MBAFF_PICTURE)
1385 cur->f.interlaced_frame = 1;
1387 // try to flag soft telecine progressive
1388 cur->f.interlaced_frame = h->prev_interlaced_frame;
1390 case SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1391 case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1392 // Signal the possibility of telecined film externally (pic_struct 5,6)
1393 // From these hints, let the applications decide if they apply deinterlacing.
1394 cur->f.repeat_pict = 1;
1396 case SEI_PIC_STRUCT_FRAME_DOUBLING:
1397 // Force progressive here, as doubling interlaced frame is a bad idea.
1398 cur->f.repeat_pict = 2;
1400 case SEI_PIC_STRUCT_FRAME_TRIPLING:
1401 cur->f.repeat_pict = 4;
1405 if ((h->sei_ct_type & 3) && h->sei_pic_struct <= SEI_PIC_STRUCT_BOTTOM_TOP)
1406 cur->f.interlaced_frame = (h->sei_ct_type & (1 << 1)) != 0;
1408 /* Derive interlacing flag from used decoding process. */
1409 cur->f.interlaced_frame = FIELD_OR_MBAFF_PICTURE;
1411 h->prev_interlaced_frame = cur->f.interlaced_frame;
1413 if (cur->field_poc[0] != cur->field_poc[1]){
1414 /* Derive top_field_first from field pocs. */
1415 cur->f.top_field_first = cur->field_poc[0] < cur->field_poc[1];
1417 if (cur->f.interlaced_frame || h->sps.pic_struct_present_flag) {
1418 /* Use picture timing SEI information. Even if it is a information of a past frame, better than nothing. */
1419 if(h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM
1420 || h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1421 cur->f.top_field_first = 1;
1423 cur->f.top_field_first = 0;
1425 /* Most likely progressive */
1426 cur->f.top_field_first = 0;
1430 //FIXME do something with unavailable reference frames
1432 /* Sort B-frames into display order */
1434 if(h->sps.bitstream_restriction_flag
1435 && s->avctx->has_b_frames < h->sps.num_reorder_frames){
1436 s->avctx->has_b_frames = h->sps.num_reorder_frames;
1440 if( s->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT
1441 && !h->sps.bitstream_restriction_flag){
1442 s->avctx->has_b_frames = MAX_DELAYED_PIC_COUNT - 1;
1447 while(h->delayed_pic[pics]) pics++;
1449 assert(pics <= MAX_DELAYED_PIC_COUNT);
1451 h->delayed_pic[pics++] = cur;
1452 if (cur->f.reference == 0)
1453 cur->f.reference = DELAYED_PIC_REF;
1455 /* Frame reordering. This code takes pictures from coding order and sorts
1456 * them by their incremental POC value into display order. It supports POC
1457 * gaps, MMCO reset codes and random resets.
1458 * A "display group" can start either with a IDR frame (f.key_frame = 1),
1459 * and/or can be closed down with a MMCO reset code. In sequences where
1460 * there is no delay, we can't detect that (since the frame was already
1461 * output to the user), so we also set h->mmco_reset to detect the MMCO
1463 * FIXME: if we detect insufficient delays (as per s->avctx->has_b_frames),
1464 * we increase the delay between input and output. All frames affected by
1465 * the lag (e.g. those that should have been output before another frame
1466 * that we already returned to the user) will be dropped. This is a bug
1467 * that we will fix later. */
1468 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) {
1469 cnt += out->poc < h->last_pocs[i];
1470 invalid += out->poc == INT_MIN;
1472 if (!h->mmco_reset && !cur->f.key_frame && cnt + invalid == MAX_DELAYED_PIC_COUNT && cnt > 0) {
1475 h->delayed_pic[pics - 2]->mmco_reset = 2;
1477 if (h->mmco_reset || cur->f.key_frame) {
1478 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
1479 h->last_pocs[i] = INT_MIN;
1481 invalid = MAX_DELAYED_PIC_COUNT;
1483 out = h->delayed_pic[0];
1485 for (i = 1; i < MAX_DELAYED_PIC_COUNT && h->delayed_pic[i] &&
1486 !h->delayed_pic[i-1]->mmco_reset && !h->delayed_pic[i]->f.key_frame; i++)
1488 if(h->delayed_pic[i]->poc < out->poc){
1489 out = h->delayed_pic[i];
1493 if (s->avctx->has_b_frames == 0 && (h->delayed_pic[0]->f.key_frame || h->mmco_reset))
1494 h->next_outputed_poc = INT_MIN;
1495 out_of_order = !out->f.key_frame && !h->mmco_reset && (out->poc < h->next_outputed_poc);
1497 if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames >= h->sps.num_reorder_frames)
1499 else if (out_of_order && pics-1 == s->avctx->has_b_frames &&
1500 s->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT) {
1501 if (invalid + cnt < MAX_DELAYED_PIC_COUNT) {
1502 s->avctx->has_b_frames = FFMAX(s->avctx->has_b_frames, cnt);
1505 } else if (s->low_delay &&
1506 ((h->next_outputed_poc != INT_MIN && out->poc > h->next_outputed_poc + 2) ||
1507 cur->f.pict_type == AV_PICTURE_TYPE_B)) {
1509 s->avctx->has_b_frames++;
1512 if(pics > s->avctx->has_b_frames){
1513 out->f.reference &= ~DELAYED_PIC_REF;
1514 out->owner2 = s; // for frame threading, the owner must be the second field's thread
1515 // or else the first thread can release the picture and reuse it unsafely
1516 for(i=out_idx; h->delayed_pic[i]; i++)
1517 h->delayed_pic[i] = h->delayed_pic[i+1];
1519 memmove(h->last_pocs, &h->last_pocs[1], sizeof(*h->last_pocs) * (MAX_DELAYED_PIC_COUNT - 1));
1520 h->last_pocs[MAX_DELAYED_PIC_COUNT - 1] = cur->poc;
1521 if(!out_of_order && pics > s->avctx->has_b_frames){
1522 h->next_output_pic = out;
1523 if (out->mmco_reset) {
1525 h->next_outputed_poc = out->poc;
1526 h->delayed_pic[out_idx - 1]->mmco_reset = out->mmco_reset;
1528 h->next_outputed_poc = INT_MIN;
1531 h->next_outputed_poc = out->poc;
1535 av_log(s->avctx, AV_LOG_DEBUG, "no picture\n");
1539 ff_thread_finish_setup(s->avctx);
1542 static av_always_inline void backup_mb_border(H264Context *h, uint8_t *src_y,
1543 uint8_t *src_cb, uint8_t *src_cr,
1544 int linesize, int uvlinesize, int simple)
1546 MpegEncContext * const s = &h->s;
1547 uint8_t *top_border;
1549 const int pixel_shift = h->pixel_shift;
1550 int chroma444 = CHROMA444;
1551 int chroma422 = CHROMA422;
1554 src_cb -= uvlinesize;
1555 src_cr -= uvlinesize;
1557 if(!simple && FRAME_MBAFF){
1560 top_border = h->top_borders[0][s->mb_x];
1561 AV_COPY128(top_border, src_y + 15*linesize);
1563 AV_COPY128(top_border+16, src_y+15*linesize+16);
1564 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1567 AV_COPY128(top_border+32, src_cb + 15*uvlinesize);
1568 AV_COPY128(top_border+48, src_cb + 15*uvlinesize+16);
1569 AV_COPY128(top_border+64, src_cr + 15*uvlinesize);
1570 AV_COPY128(top_border+80, src_cr + 15*uvlinesize+16);
1572 AV_COPY128(top_border+16, src_cb + 15*uvlinesize);
1573 AV_COPY128(top_border+32, src_cr + 15*uvlinesize);
1575 } else if(chroma422) {
1577 AV_COPY128(top_border+32, src_cb + 15*uvlinesize);
1578 AV_COPY128(top_border+48, src_cr + 15*uvlinesize);
1580 AV_COPY64(top_border+16, src_cb + 15*uvlinesize);
1581 AV_COPY64(top_border+24, src_cr + 15*uvlinesize);
1585 AV_COPY128(top_border+32, src_cb+7*uvlinesize);
1586 AV_COPY128(top_border+48, src_cr+7*uvlinesize);
1588 AV_COPY64(top_border+16, src_cb+7*uvlinesize);
1589 AV_COPY64(top_border+24, src_cr+7*uvlinesize);
1600 top_border = h->top_borders[top_idx][s->mb_x];
1601 // There are two lines saved, the line above the the top macroblock of a pair,
1602 // and the line above the bottom macroblock
1603 AV_COPY128(top_border, src_y + 16*linesize);
1605 AV_COPY128(top_border+16, src_y+16*linesize+16);
1607 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1610 AV_COPY128(top_border+32, src_cb + 16*linesize);
1611 AV_COPY128(top_border+48, src_cb + 16*linesize+16);
1612 AV_COPY128(top_border+64, src_cr + 16*linesize);
1613 AV_COPY128(top_border+80, src_cr + 16*linesize+16);
1615 AV_COPY128(top_border+16, src_cb + 16*linesize);
1616 AV_COPY128(top_border+32, src_cr + 16*linesize);
1618 } else if(chroma422) {
1620 AV_COPY128(top_border+32, src_cb+16*uvlinesize);
1621 AV_COPY128(top_border+48, src_cr+16*uvlinesize);
1623 AV_COPY64(top_border+16, src_cb+16*uvlinesize);
1624 AV_COPY64(top_border+24, src_cr+16*uvlinesize);
1628 AV_COPY128(top_border+32, src_cb+8*uvlinesize);
1629 AV_COPY128(top_border+48, src_cr+8*uvlinesize);
1631 AV_COPY64(top_border+16, src_cb+8*uvlinesize);
1632 AV_COPY64(top_border+24, src_cr+8*uvlinesize);
1638 static av_always_inline void xchg_mb_border(H264Context *h, uint8_t *src_y,
1639 uint8_t *src_cb, uint8_t *src_cr,
1640 int linesize, int uvlinesize,
1641 int xchg, int chroma444,
1642 int simple, int pixel_shift){
1643 MpegEncContext * const s = &h->s;
1644 int deblock_topleft;
1647 uint8_t *top_border_m1;
1648 uint8_t *top_border;
1650 if(!simple && FRAME_MBAFF){
1655 top_idx = MB_MBAFF ? 0 : 1;
1659 if(h->deblocking_filter == 2) {
1660 deblock_topleft = h->slice_table[h->mb_xy - 1 - s->mb_stride] == h->slice_num;
1661 deblock_top = h->top_type;
1663 deblock_topleft = (s->mb_x > 0);
1664 deblock_top = (s->mb_y > !!MB_FIELD);
1667 src_y -= linesize + 1 + pixel_shift;
1668 src_cb -= uvlinesize + 1 + pixel_shift;
1669 src_cr -= uvlinesize + 1 + pixel_shift;
1671 top_border_m1 = h->top_borders[top_idx][s->mb_x-1];
1672 top_border = h->top_borders[top_idx][s->mb_x];
1674 #define XCHG(a,b,xchg)\
1677 AV_SWAP64(b+0,a+0);\
1678 AV_SWAP64(b+8,a+8);\
1683 if (xchg) AV_SWAP64(b,a);\
1684 else AV_COPY64(b,a);
1687 if(deblock_topleft){
1688 XCHG(top_border_m1 + (8 << pixel_shift), src_y - (7 << pixel_shift), 1);
1690 XCHG(top_border + (0 << pixel_shift), src_y + (1 << pixel_shift), xchg);
1691 XCHG(top_border + (8 << pixel_shift), src_y + (9 << pixel_shift), 1);
1692 if(s->mb_x+1 < s->mb_width){
1693 XCHG(h->top_borders[top_idx][s->mb_x+1], src_y + (17 << pixel_shift), 1);
1696 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1698 if(deblock_topleft){
1699 XCHG(top_border_m1 + (24 << pixel_shift), src_cb - (7 << pixel_shift), 1);
1700 XCHG(top_border_m1 + (40 << pixel_shift), src_cr - (7 << pixel_shift), 1);
1702 XCHG(top_border + (16 << pixel_shift), src_cb + (1 << pixel_shift), xchg);
1703 XCHG(top_border + (24 << pixel_shift), src_cb + (9 << pixel_shift), 1);
1704 XCHG(top_border + (32 << pixel_shift), src_cr + (1 << pixel_shift), xchg);
1705 XCHG(top_border + (40 << pixel_shift), src_cr + (9 << pixel_shift), 1);
1706 if(s->mb_x+1 < s->mb_width){
1707 XCHG(h->top_borders[top_idx][s->mb_x+1] + (16 << pixel_shift), src_cb + (17 << pixel_shift), 1);
1708 XCHG(h->top_borders[top_idx][s->mb_x+1] + (32 << pixel_shift), src_cr + (17 << pixel_shift), 1);
1712 if(deblock_topleft){
1713 XCHG(top_border_m1 + (16 << pixel_shift), src_cb - (7 << pixel_shift), 1);
1714 XCHG(top_border_m1 + (24 << pixel_shift), src_cr - (7 << pixel_shift), 1);
1716 XCHG(top_border + (16 << pixel_shift), src_cb+1+pixel_shift, 1);
1717 XCHG(top_border + (24 << pixel_shift), src_cr+1+pixel_shift, 1);
1723 static av_always_inline int dctcoef_get(DCTELEM *mb, int high_bit_depth, int index) {
1724 if (high_bit_depth) {
1725 return AV_RN32A(((int32_t*)mb) + index);
1727 return AV_RN16A(mb + index);
1730 static av_always_inline void dctcoef_set(DCTELEM *mb, int high_bit_depth, int index, int value) {
1731 if (high_bit_depth) {
1732 AV_WN32A(((int32_t*)mb) + index, value);
1734 AV_WN16A(mb + index, value);
1737 static av_always_inline void hl_decode_mb_predict_luma(H264Context *h, int mb_type, int is_h264, int simple, int transform_bypass,
1738 int pixel_shift, int *block_offset, int linesize, uint8_t *dest_y, int p)
1740 MpegEncContext * const s = &h->s;
1741 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1742 void (*idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
1744 int qscale = p == 0 ? s->qscale : h->chroma_qp[p-1];
1745 block_offset += 16*p;
1746 if(IS_INTRA4x4(mb_type)){
1747 if(simple || !s->encoding){
1748 if(IS_8x8DCT(mb_type)){
1749 if(transform_bypass){
1751 idct_add = s->dsp.add_pixels8;
1753 idct_dc_add = h->h264dsp.h264_idct8_dc_add;
1754 idct_add = h->h264dsp.h264_idct8_add;
1756 for(i=0; i<16; i+=4){
1757 uint8_t * const ptr= dest_y + block_offset[i];
1758 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
1759 if(transform_bypass && h->sps.profile_idc==244 && dir<=1){
1760 h->hpc.pred8x8l_add[dir](ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1762 const int nnz = h->non_zero_count_cache[ scan8[i+p*16] ];
1763 h->hpc.pred8x8l[ dir ](ptr, (h->topleft_samples_available<<i)&0x8000,
1764 (h->topright_samples_available<<i)&0x4000, linesize);
1766 if(nnz == 1 && dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1767 idct_dc_add(ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1769 idct_add (ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1774 if(transform_bypass){
1776 idct_add = s->dsp.add_pixels4;
1778 idct_dc_add = h->h264dsp.h264_idct_dc_add;
1779 idct_add = h->h264dsp.h264_idct_add;
1781 for(i=0; i<16; i++){
1782 uint8_t * const ptr= dest_y + block_offset[i];
1783 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
1785 if(transform_bypass && h->sps.profile_idc==244 && dir<=1){
1786 h->hpc.pred4x4_add[dir](ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1791 if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
1792 const int topright_avail= (h->topright_samples_available<<i)&0x8000;
1793 assert(s->mb_y || linesize <= block_offset[i]);
1794 if(!topright_avail){
1796 tr_high= ((uint16_t*)ptr)[3 - linesize/2]*0x0001000100010001ULL;
1797 topright= (uint8_t*) &tr_high;
1799 tr= ptr[3 - linesize]*0x01010101u;
1800 topright= (uint8_t*) &tr;
1803 topright= ptr + (4 << pixel_shift) - linesize;
1807 h->hpc.pred4x4[ dir ](ptr, topright, linesize);
1808 nnz = h->non_zero_count_cache[ scan8[i+p*16] ];
1811 if(nnz == 1 && dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1812 idct_dc_add(ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1814 idct_add (ptr, h->mb + (i*16+p*256 << pixel_shift), linesize);
1816 ff_svq3_add_idct_c(ptr, h->mb + i*16+p*256, linesize, qscale, 0);
1823 h->hpc.pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);
1825 if(h->non_zero_count_cache[ scan8[LUMA_DC_BLOCK_INDEX+p] ]){
1826 if(!transform_bypass)
1827 h->h264dsp.h264_luma_dc_dequant_idct(h->mb+(p*256 << pixel_shift), h->mb_luma_dc[p], h->dequant4_coeff[p][qscale][0]);
1829 static const uint8_t dc_mapping[16] = { 0*16, 1*16, 4*16, 5*16, 2*16, 3*16, 6*16, 7*16,
1830 8*16, 9*16,12*16,13*16,10*16,11*16,14*16,15*16};
1831 for(i = 0; i < 16; i++)
1832 dctcoef_set(h->mb+(p*256 << pixel_shift), pixel_shift, dc_mapping[i], dctcoef_get(h->mb_luma_dc[p], pixel_shift, i));
1836 ff_svq3_luma_dc_dequant_idct_c(h->mb+p*256, h->mb_luma_dc[p], qscale);
1840 static av_always_inline void hl_decode_mb_idct_luma(H264Context *h, int mb_type, int is_h264, int simple, int transform_bypass,
1841 int pixel_shift, int *block_offset, int linesize, uint8_t *dest_y, int p)
1843 MpegEncContext * const s = &h->s;
1844 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1846 block_offset += 16*p;
1847 if(!IS_INTRA4x4(mb_type)){
1849 if(IS_INTRA16x16(mb_type)){
1850 if(transform_bypass){
1851 if(h->sps.profile_idc==244 && (h->intra16x16_pred_mode==VERT_PRED8x8 || h->intra16x16_pred_mode==HOR_PRED8x8)){
1852 h->hpc.pred16x16_add[h->intra16x16_pred_mode](dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize);
1854 for(i=0; i<16; i++){
1855 if(h->non_zero_count_cache[ scan8[i+p*16] ] || dctcoef_get(h->mb, pixel_shift, i*16+p*256))
1856 s->dsp.add_pixels4(dest_y + block_offset[i], h->mb + (i*16+p*256 << pixel_shift), linesize);
1860 h->h264dsp.h264_idct_add16intra(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1862 }else if(h->cbp&15){
1863 if(transform_bypass){
1864 const int di = IS_8x8DCT(mb_type) ? 4 : 1;
1865 idct_add= IS_8x8DCT(mb_type) ? s->dsp.add_pixels8 : s->dsp.add_pixels4;
1866 for(i=0; i<16; i+=di){
1867 if(h->non_zero_count_cache[ scan8[i+p*16] ]){
1868 idct_add(dest_y + block_offset[i], h->mb + (i*16+p*256 << pixel_shift), linesize);
1872 if(IS_8x8DCT(mb_type)){
1873 h->h264dsp.h264_idct8_add4(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1875 h->h264dsp.h264_idct_add16(dest_y, block_offset, h->mb + (p*256 << pixel_shift), linesize, h->non_zero_count_cache+p*5*8);
1880 for(i=0; i<16; i++){
1881 if(h->non_zero_count_cache[ scan8[i+p*16] ] || h->mb[i*16+p*256]){ //FIXME benchmark weird rule, & below
1882 uint8_t * const ptr= dest_y + block_offset[i];
1883 ff_svq3_add_idct_c(ptr, h->mb + i*16 + p*256, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0);
1890 static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple, int pixel_shift)
1892 MpegEncContext * const s = &h->s;
1893 const int mb_x= s->mb_x;
1894 const int mb_y= s->mb_y;
1895 const int mb_xy= h->mb_xy;
1896 const int mb_type = s->current_picture.f.mb_type[mb_xy];
1897 uint8_t *dest_y, *dest_cb, *dest_cr;
1898 int linesize, uvlinesize /*dct_offset*/;
1900 int *block_offset = &h->block_offset[0];
1901 const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass);
1902 /* is_h264 should always be true if SVQ3 is disabled. */
1903 const int is_h264 = !CONFIG_SVQ3_DECODER || simple || s->codec_id == CODEC_ID_H264;
1904 void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
1905 const int block_h = 16 >> s->chroma_y_shift;
1906 const int chroma422 = CHROMA422;
1908 dest_y = s->current_picture.f.data[0] + ((mb_x << pixel_shift) + mb_y * s->linesize ) * 16;
1909 dest_cb = s->current_picture.f.data[1] + (mb_x << pixel_shift)*8 + mb_y * s->uvlinesize * block_h;
1910 dest_cr = s->current_picture.f.data[2] + (mb_x << pixel_shift)*8 + mb_y * s->uvlinesize * block_h;
1912 s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + (64 << pixel_shift), s->linesize, 4);
1913 s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + (64 << pixel_shift), dest_cr - dest_cb, 2);
1915 h->list_counts[mb_xy]= h->list_count;
1917 if (!simple && MB_FIELD) {
1918 linesize = h->mb_linesize = s->linesize * 2;
1919 uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
1920 block_offset = &h->block_offset[48];
1921 if(mb_y&1){ //FIXME move out of this function?
1922 dest_y -= s->linesize*15;
1923 dest_cb-= s->uvlinesize * (block_h - 1);
1924 dest_cr-= s->uvlinesize * (block_h - 1);
1928 for(list=0; list<h->list_count; list++){
1929 if(!USES_LIST(mb_type, list))
1931 if(IS_16X16(mb_type)){
1932 int8_t *ref = &h->ref_cache[list][scan8[0]];
1933 fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);
1935 for(i=0; i<16; i+=4){
1936 int ref = h->ref_cache[list][scan8[i]];
1938 fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);
1944 linesize = h->mb_linesize = s->linesize;
1945 uvlinesize = h->mb_uvlinesize = s->uvlinesize;
1946 // dct_offset = s->linesize * 16;
1949 if (!simple && IS_INTRA_PCM(mb_type)) {
1951 const int bit_depth = h->sps.bit_depth_luma;
1954 init_get_bits(&gb, (uint8_t*)h->mb, 384*bit_depth);
1956 for (i = 0; i < 16; i++) {
1957 uint16_t *tmp_y = (uint16_t*)(dest_y + i*linesize);
1958 for (j = 0; j < 16; j++)
1959 tmp_y[j] = get_bits(&gb, bit_depth);
1961 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1962 if (!h->sps.chroma_format_idc) {
1963 for (i = 0; i < block_h; i++) {
1964 uint16_t *tmp_cb = (uint16_t*)(dest_cb + i*uvlinesize);
1965 for (j = 0; j < 8; j++) {
1966 tmp_cb[j] = 1 << (bit_depth - 1);
1969 for (i = 0; i < block_h; i++) {
1970 uint16_t *tmp_cr = (uint16_t*)(dest_cr + i*uvlinesize);
1971 for (j = 0; j < 8; j++) {
1972 tmp_cr[j] = 1 << (bit_depth - 1);
1976 for (i = 0; i < block_h; i++) {
1977 uint16_t *tmp_cb = (uint16_t*)(dest_cb + i*uvlinesize);
1978 for (j = 0; j < 8; j++)
1979 tmp_cb[j] = get_bits(&gb, bit_depth);
1981 for (i = 0; i < block_h; i++) {
1982 uint16_t *tmp_cr = (uint16_t*)(dest_cr + i*uvlinesize);
1983 for (j = 0; j < 8; j++)
1984 tmp_cr[j] = get_bits(&gb, bit_depth);
1989 for (i=0; i<16; i++) {
1990 memcpy(dest_y + i* linesize, h->mb + i*8, 16);
1992 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
1993 if (!h->sps.chroma_format_idc) {
1994 for (i = 0; i < block_h; i++) {
1995 memset(dest_cb + i*uvlinesize, 128, 8);
1996 memset(dest_cr + i*uvlinesize, 128, 8);
1999 for (i = 0; i < block_h; i++) {
2000 memcpy(dest_cb + i*uvlinesize, h->mb + 128 + i*4, 8);
2001 memcpy(dest_cr + i*uvlinesize, h->mb + 160 + i*4, 8);
2007 if(IS_INTRA(mb_type)){
2008 if(h->deblocking_filter)
2009 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, 0, simple, pixel_shift);
2011 if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2012 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
2013 h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
2016 hl_decode_mb_predict_luma(h, mb_type, is_h264, simple, transform_bypass, pixel_shift, block_offset, linesize, dest_y, 0);
2018 if(h->deblocking_filter)
2019 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, 0, simple, pixel_shift);
2022 hl_motion_422(h, dest_y, dest_cb, dest_cr,
2023 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
2024 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
2025 h->h264dsp.weight_h264_pixels_tab,
2026 h->h264dsp.biweight_h264_pixels_tab,
2029 hl_motion_420(h, dest_y, dest_cb, dest_cr,
2030 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
2031 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
2032 h->h264dsp.weight_h264_pixels_tab,
2033 h->h264dsp.biweight_h264_pixels_tab,
2038 hl_decode_mb_idct_luma(h, mb_type, is_h264, simple, transform_bypass, pixel_shift, block_offset, linesize, dest_y, 0);
2040 if((simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) && (h->cbp&0x30)){
2041 uint8_t *dest[2] = {dest_cb, dest_cr};
2042 if(transform_bypass){
2043 if(IS_INTRA(mb_type) && h->sps.profile_idc==244 && (h->chroma_pred_mode==VERT_PRED8x8 || h->chroma_pred_mode==HOR_PRED8x8)){
2044 h->hpc.pred8x8_add[h->chroma_pred_mode](dest[0], block_offset + 16, h->mb + (16*16*1 << pixel_shift), uvlinesize);
2045 h->hpc.pred8x8_add[h->chroma_pred_mode](dest[1], block_offset + 32, h->mb + (16*16*2 << pixel_shift), uvlinesize);
2047 idct_add = s->dsp.add_pixels4;
2049 for(i=j*16; i<j*16+4; i++){
2050 if(h->non_zero_count_cache[ scan8[i] ] || dctcoef_get(h->mb, pixel_shift, i*16))
2051 idct_add (dest[j-1] + block_offset[i], h->mb + (i*16 << pixel_shift), uvlinesize);
2054 for(i=j*16+4; i<j*16+8; i++){
2055 if(h->non_zero_count_cache[ scan8[i+4] ] || dctcoef_get(h->mb, pixel_shift, i*16))
2056 idct_add (dest[j-1] + block_offset[i+4], h->mb + (i*16 << pixel_shift), uvlinesize);
2065 qp[0] = h->chroma_qp[0] + 3;
2066 qp[1] = h->chroma_qp[1] + 3;
2068 qp[0] = h->chroma_qp[0];
2069 qp[1] = h->chroma_qp[1];
2071 if(h->non_zero_count_cache[ scan8[CHROMA_DC_BLOCK_INDEX+0] ])
2072 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]);
2073 if(h->non_zero_count_cache[ scan8[CHROMA_DC_BLOCK_INDEX+1] ])
2074 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]);
2075 h->h264dsp.h264_idct_add8(dest, block_offset,
2077 h->non_zero_count_cache);
2079 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]);
2080 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]);
2082 for(i=j*16; i<j*16+4; i++){
2083 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2084 uint8_t * const ptr= dest[j-1] + block_offset[i];
2085 ff_svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, ff_h264_chroma_qp[0][s->qscale + 12] - 12, 2);
2093 if(h->cbp || IS_INTRA(mb_type))
2095 s->dsp.clear_blocks(h->mb);
2096 s->dsp.clear_blocks(h->mb+(24*16<<pixel_shift));
2100 static av_always_inline void hl_decode_mb_444_internal(H264Context *h, int simple, int pixel_shift){
2101 MpegEncContext * const s = &h->s;
2102 const int mb_x= s->mb_x;
2103 const int mb_y= s->mb_y;
2104 const int mb_xy= h->mb_xy;
2105 const int mb_type = s->current_picture.f.mb_type[mb_xy];
2109 int *block_offset = &h->block_offset[0];
2110 const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass);
2111 const int plane_count = (simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) ? 3 : 1;
2113 for (p = 0; p < plane_count; p++)
2115 dest[p] = s->current_picture.f.data[p] + ((mb_x << pixel_shift) + mb_y * s->linesize) * 16;
2116 s->dsp.prefetch(dest[p] + (s->mb_x&3)*4*s->linesize + (64 << pixel_shift), s->linesize, 4);
2119 h->list_counts[mb_xy]= h->list_count;
2121 if (!simple && MB_FIELD) {
2122 linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize * 2;
2123 block_offset = &h->block_offset[48];
2124 if(mb_y&1) //FIXME move out of this function?
2125 for (p = 0; p < 3; p++)
2126 dest[p] -= s->linesize*15;
2129 for(list=0; list<h->list_count; list++){
2130 if(!USES_LIST(mb_type, list))
2132 if(IS_16X16(mb_type)){
2133 int8_t *ref = &h->ref_cache[list][scan8[0]];
2134 fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1);
2136 for(i=0; i<16; i+=4){
2137 int ref = h->ref_cache[list][scan8[i]];
2139 fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1);
2145 linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize;
2148 if (!simple && IS_INTRA_PCM(mb_type)) {
2150 const int bit_depth = h->sps.bit_depth_luma;
2152 init_get_bits(&gb, (uint8_t*)h->mb, 768*bit_depth);
2154 for (p = 0; p < plane_count; p++) {
2155 for (i = 0; i < 16; i++) {
2156 uint16_t *tmp = (uint16_t*)(dest[p] + i*linesize);
2157 for (j = 0; j < 16; j++)
2158 tmp[j] = get_bits(&gb, bit_depth);
2162 for (p = 0; p < plane_count; p++) {
2163 for (i = 0; i < 16; i++) {
2164 memcpy(dest[p] + i*linesize, h->mb + p*128 + i*8, 16);
2169 if(IS_INTRA(mb_type)){
2170 if(h->deblocking_filter)
2171 xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, linesize, 1, 1, simple, pixel_shift);
2173 for (p = 0; p < plane_count; p++)
2174 hl_decode_mb_predict_luma(h, mb_type, 1, simple, transform_bypass, pixel_shift, block_offset, linesize, dest[p], p);
2176 if(h->deblocking_filter)
2177 xchg_mb_border(h, dest[0], dest[1], dest[2], linesize, linesize, 0, 1, simple, pixel_shift);
2179 hl_motion(h, dest[0], dest[1], dest[2],
2180 s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
2181 s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
2182 h->h264dsp.weight_h264_pixels_tab,
2183 h->h264dsp.biweight_h264_pixels_tab, pixel_shift, 3);
2186 for (p = 0; p < plane_count; p++)
2187 hl_decode_mb_idct_luma(h, mb_type, 1, simple, transform_bypass, pixel_shift, block_offset, linesize, dest[p], p);
2189 if(h->cbp || IS_INTRA(mb_type))
2191 s->dsp.clear_blocks(h->mb);
2192 s->dsp.clear_blocks(h->mb+(24*16<<pixel_shift));
2197 * Process a macroblock; this case avoids checks for expensive uncommon cases.
2199 #define hl_decode_mb_simple(sh, bits) \
2200 static void hl_decode_mb_simple_ ## bits(H264Context *h){ \
2201 hl_decode_mb_internal(h, 1, sh); \
2203 hl_decode_mb_simple(0, 8)
2204 hl_decode_mb_simple(1, 16)
2207 * Process a macroblock; this handles edge cases, such as interlacing.
2209 static void av_noinline hl_decode_mb_complex(H264Context *h){
2210 hl_decode_mb_internal(h, 0, h->pixel_shift);
2213 static void av_noinline hl_decode_mb_444_complex(H264Context *h){
2214 hl_decode_mb_444_internal(h, 0, h->pixel_shift);
2217 static void av_noinline hl_decode_mb_444_simple(H264Context *h){
2218 hl_decode_mb_444_internal(h, 1, 0);
2221 void ff_h264_hl_decode_mb(H264Context *h){
2222 MpegEncContext * const s = &h->s;
2223 const int mb_xy= h->mb_xy;
2224 const int mb_type = s->current_picture.f.mb_type[mb_xy];
2225 int is_complex = CONFIG_SMALL || h->is_complex || IS_INTRA_PCM(mb_type) || s->qscale == 0;
2228 if(is_complex || h->pixel_shift)
2229 hl_decode_mb_444_complex(h);
2231 hl_decode_mb_444_simple(h);
2232 } else if (is_complex) {
2233 hl_decode_mb_complex(h);
2234 } else if (h->pixel_shift) {
2235 hl_decode_mb_simple_16(h);
2237 hl_decode_mb_simple_8(h);
2240 static int pred_weight_table(H264Context *h){
2241 MpegEncContext * const s = &h->s;
2243 int luma_def, chroma_def;
2246 h->use_weight_chroma= 0;
2247 h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
2248 if(h->sps.chroma_format_idc)
2249 h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
2250 luma_def = 1<<h->luma_log2_weight_denom;
2251 chroma_def = 1<<h->chroma_log2_weight_denom;
2253 for(list=0; list<2; list++){
2254 h->luma_weight_flag[list] = 0;
2255 h->chroma_weight_flag[list] = 0;
2256 for(i=0; i<h->ref_count[list]; i++){
2257 int luma_weight_flag, chroma_weight_flag;
2259 luma_weight_flag= get_bits1(&s->gb);
2260 if(luma_weight_flag){
2261 h->luma_weight[i][list][0]= get_se_golomb(&s->gb);
2262 h->luma_weight[i][list][1]= get_se_golomb(&s->gb);
2263 if( h->luma_weight[i][list][0] != luma_def
2264 || h->luma_weight[i][list][1] != 0) {
2266 h->luma_weight_flag[list]= 1;
2269 h->luma_weight[i][list][0]= luma_def;
2270 h->luma_weight[i][list][1]= 0;
2273 if(h->sps.chroma_format_idc){
2274 chroma_weight_flag= get_bits1(&s->gb);
2275 if(chroma_weight_flag){
2278 h->chroma_weight[i][list][j][0]= get_se_golomb(&s->gb);
2279 h->chroma_weight[i][list][j][1]= get_se_golomb(&s->gb);
2280 if( h->chroma_weight[i][list][j][0] != chroma_def
2281 || h->chroma_weight[i][list][j][1] != 0) {
2282 h->use_weight_chroma= 1;
2283 h->chroma_weight_flag[list]= 1;
2289 h->chroma_weight[i][list][j][0]= chroma_def;
2290 h->chroma_weight[i][list][j][1]= 0;
2295 if(h->slice_type_nos != AV_PICTURE_TYPE_B) break;
2297 h->use_weight= h->use_weight || h->use_weight_chroma;
2302 * Initialize implicit_weight table.
2303 * @param field 0/1 initialize the weight for interlaced MBAFF
2304 * -1 initializes the rest
2306 static void implicit_weight_table(H264Context *h, int field){
2307 MpegEncContext * const s = &h->s;
2308 int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
2310 for (i = 0; i < 2; i++) {
2311 h->luma_weight_flag[i] = 0;
2312 h->chroma_weight_flag[i] = 0;
2316 if (s->picture_structure == PICT_FRAME) {
2317 cur_poc = s->current_picture_ptr->poc;
2319 cur_poc = s->current_picture_ptr->field_poc[s->picture_structure - 1];
2321 if( h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF
2322 && h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){
2324 h->use_weight_chroma= 0;
2328 ref_count0= h->ref_count[0];
2329 ref_count1= h->ref_count[1];
2331 cur_poc = s->current_picture_ptr->field_poc[field];
2333 ref_count0= 16+2*h->ref_count[0];
2334 ref_count1= 16+2*h->ref_count[1];
2338 h->use_weight_chroma= 2;
2339 h->luma_log2_weight_denom= 5;
2340 h->chroma_log2_weight_denom= 5;
2342 for(ref0=ref_start; ref0 < ref_count0; ref0++){
2343 int poc0 = h->ref_list[0][ref0].poc;
2344 for(ref1=ref_start; ref1 < ref_count1; ref1++){
2346 if (!h->ref_list[0][ref0].long_ref && !h->ref_list[1][ref1].long_ref) {
2347 int poc1 = h->ref_list[1][ref1].poc;
2348 int td = av_clip(poc1 - poc0, -128, 127);
2350 int tb = av_clip(cur_poc - poc0, -128, 127);
2351 int tx = (16384 + (FFABS(td) >> 1)) / td;
2352 int dist_scale_factor = (tb*tx + 32) >> 8;
2353 if(dist_scale_factor >= -64 && dist_scale_factor <= 128)
2354 w = 64 - dist_scale_factor;
2358 h->implicit_weight[ref0][ref1][0]=
2359 h->implicit_weight[ref0][ref1][1]= w;
2361 h->implicit_weight[ref0][ref1][field]=w;
2368 * instantaneous decoder refresh.
2370 static void idr(H264Context *h){
2371 ff_h264_remove_all_refs(h);
2372 h->prev_frame_num= 0;
2373 h->prev_frame_num_offset= 0;
2378 /* forget old pics after a seek */
2379 static void flush_dpb(AVCodecContext *avctx){
2380 H264Context *h= avctx->priv_data;
2382 for(i=0; i<MAX_DELAYED_PIC_COUNT; i++) {
2383 if(h->delayed_pic[i])
2384 h->delayed_pic[i]->f.reference = 0;
2385 h->delayed_pic[i]= NULL;
2387 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
2388 h->last_pocs[i] = INT_MIN;
2389 h->outputed_poc=h->next_outputed_poc= INT_MIN;
2390 h->prev_interlaced_frame = 1;
2392 if(h->s.current_picture_ptr)
2393 h->s.current_picture_ptr->f.reference = 0;
2394 h->s.first_field= 0;
2395 ff_h264_reset_sei(h);
2396 ff_mpeg_flush(avctx);
2399 static int init_poc(H264Context *h){
2400 MpegEncContext * const s = &h->s;
2401 const int max_frame_num= 1<<h->sps.log2_max_frame_num;
2403 Picture *cur = s->current_picture_ptr;
2405 h->frame_num_offset= h->prev_frame_num_offset;
2406 if(h->frame_num < h->prev_frame_num)
2407 h->frame_num_offset += max_frame_num;
2409 if(h->sps.poc_type==0){
2410 const int max_poc_lsb= 1<<h->sps.log2_max_poc_lsb;
2412 if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2)
2413 h->poc_msb = h->prev_poc_msb + max_poc_lsb;
2414 else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2)
2415 h->poc_msb = h->prev_poc_msb - max_poc_lsb;
2417 h->poc_msb = h->prev_poc_msb;
2418 //printf("poc: %d %d\n", h->poc_msb, h->poc_lsb);
2420 field_poc[1] = h->poc_msb + h->poc_lsb;
2421 if(s->picture_structure == PICT_FRAME)
2422 field_poc[1] += h->delta_poc_bottom;
2423 }else if(h->sps.poc_type==1){
2424 int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
2427 if(h->sps.poc_cycle_length != 0)
2428 abs_frame_num = h->frame_num_offset + h->frame_num;
2432 if(h->nal_ref_idc==0 && abs_frame_num > 0)
2435 expected_delta_per_poc_cycle = 0;
2436 for(i=0; i < h->sps.poc_cycle_length; i++)
2437 expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse
2439 if(abs_frame_num > 0){
2440 int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length;
2441 int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;
2443 expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;
2444 for(i = 0; i <= frame_num_in_poc_cycle; i++)
2445 expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ];
2449 if(h->nal_ref_idc == 0)
2450 expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;
2452 field_poc[0] = expectedpoc + h->delta_poc[0];
2453 field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;
2455 if(s->picture_structure == PICT_FRAME)
2456 field_poc[1] += h->delta_poc[1];
2458 int poc= 2*(h->frame_num_offset + h->frame_num);
2467 if(s->picture_structure != PICT_BOTTOM_FIELD)
2468 s->current_picture_ptr->field_poc[0]= field_poc[0];
2469 if(s->picture_structure != PICT_TOP_FIELD)
2470 s->current_picture_ptr->field_poc[1]= field_poc[1];
2471 cur->poc= FFMIN(cur->field_poc[0], cur->field_poc[1]);
2478 * initialize scan tables
2480 static void init_scan_tables(H264Context *h){
2482 for(i=0; i<16; i++){
2483 #define T(x) (x>>2) | ((x<<2) & 0xF)
2484 h->zigzag_scan[i] = T(zigzag_scan[i]);
2485 h-> field_scan[i] = T( field_scan[i]);
2488 for(i=0; i<64; i++){
2489 #define T(x) (x>>3) | ((x&7)<<3)
2490 h->zigzag_scan8x8[i] = T(ff_zigzag_direct[i]);
2491 h->zigzag_scan8x8_cavlc[i] = T(zigzag_scan8x8_cavlc[i]);
2492 h->field_scan8x8[i] = T(field_scan8x8[i]);
2493 h->field_scan8x8_cavlc[i] = T(field_scan8x8_cavlc[i]);
2496 if(h->sps.transform_bypass){ //FIXME same ugly
2497 h->zigzag_scan_q0 = zigzag_scan;
2498 h->zigzag_scan8x8_q0 = ff_zigzag_direct;
2499 h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc;
2500 h->field_scan_q0 = field_scan;
2501 h->field_scan8x8_q0 = field_scan8x8;
2502 h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc;
2504 h->zigzag_scan_q0 = h->zigzag_scan;
2505 h->zigzag_scan8x8_q0 = h->zigzag_scan8x8;
2506 h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc;
2507 h->field_scan_q0 = h->field_scan;
2508 h->field_scan8x8_q0 = h->field_scan8x8;
2509 h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc;
2513 static int field_end(H264Context *h, int in_setup){
2514 MpegEncContext * const s = &h->s;
2515 AVCodecContext * const avctx= s->avctx;
2519 if (!in_setup && !s->dropable)
2520 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, (16*s->mb_height >> FIELD_PICTURE) - 1,
2521 s->picture_structure==PICT_BOTTOM_FIELD);
2523 if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
2524 ff_vdpau_h264_set_reference_frames(s);
2526 if(in_setup || !(avctx->active_thread_type&FF_THREAD_FRAME)){
2528 err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
2529 h->prev_poc_msb= h->poc_msb;
2530 h->prev_poc_lsb= h->poc_lsb;
2532 h->prev_frame_num_offset= h->frame_num_offset;
2533 h->prev_frame_num= h->frame_num;
2534 h->outputed_poc = h->next_outputed_poc;
2537 if (avctx->hwaccel) {
2538 if (avctx->hwaccel->end_frame(avctx) < 0)
2539 av_log(avctx, AV_LOG_ERROR, "hardware accelerator failed to decode picture\n");
2542 if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
2543 ff_vdpau_h264_picture_complete(s);
2546 * FIXME: Error handling code does not seem to support interlaced
2547 * when slices span multiple rows
2548 * The ff_er_add_slice calls don't work right for bottom
2549 * fields; they cause massive erroneous error concealing
2550 * Error marking covers both fields (top and bottom).
2551 * This causes a mismatched s->error_count
2552 * and a bad error table. Further, the error count goes to
2553 * INT_MAX when called for bottom field, because mb_y is
2554 * past end by one (callers fault) and resync_mb_y != 0
2555 * causes problems for the first MB line, too.
2568 * Replicate H264 "master" context to thread contexts.
2570 static void clone_slice(H264Context *dst, H264Context *src)
2572 memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
2573 dst->s.current_picture_ptr = src->s.current_picture_ptr;
2574 dst->s.current_picture = src->s.current_picture;
2575 dst->s.linesize = src->s.linesize;
2576 dst->s.uvlinesize = src->s.uvlinesize;
2577 dst->s.first_field = src->s.first_field;
2579 dst->prev_poc_msb = src->prev_poc_msb;
2580 dst->prev_poc_lsb = src->prev_poc_lsb;
2581 dst->prev_frame_num_offset = src->prev_frame_num_offset;
2582 dst->prev_frame_num = src->prev_frame_num;
2583 dst->short_ref_count = src->short_ref_count;
2585 memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
2586 memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
2587 memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
2588 memcpy(dst->ref_list, src->ref_list, sizeof(dst->ref_list));
2590 memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
2591 memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
2595 * computes profile from profile_idc and constraint_set?_flags
2599 * @return profile as defined by FF_PROFILE_H264_*
2601 int ff_h264_get_profile(SPS *sps)
2603 int profile = sps->profile_idc;
2605 switch(sps->profile_idc) {
2606 case FF_PROFILE_H264_BASELINE:
2607 // constraint_set1_flag set to 1
2608 profile |= (sps->constraint_set_flags & 1<<1) ? FF_PROFILE_H264_CONSTRAINED : 0;
2610 case FF_PROFILE_H264_HIGH_10:
2611 case FF_PROFILE_H264_HIGH_422:
2612 case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
2613 // constraint_set3_flag set to 1
2614 profile |= (sps->constraint_set_flags & 1<<3) ? FF_PROFILE_H264_INTRA : 0;
2622 * decodes a slice header.
2623 * This will also call MPV_common_init() and frame_start() as needed.
2625 * @param h h264context
2626 * @param h0 h264 master context (differs from 'h' when doing sliced based parallel decoding)
2628 * @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded
2630 static int decode_slice_header(H264Context *h, H264Context *h0){
2631 MpegEncContext * const s = &h->s;
2632 MpegEncContext * const s0 = &h0->s;
2633 unsigned int first_mb_in_slice;
2634 unsigned int pps_id;
2635 int num_ref_idx_active_override_flag;
2636 unsigned int slice_type, tmp, i, j;
2637 int default_ref_list_done = 0;
2638 int last_pic_structure;
2640 s->dropable= h->nal_ref_idc == 0;
2642 /* FIXME: 2tap qpel isn't implemented for high bit depth. */
2643 if((s->avctx->flags2 & CODEC_FLAG2_FAST) && !h->nal_ref_idc && !h->pixel_shift){
2644 s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab;
2645 s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab;
2647 s->me.qpel_put= s->dsp.put_h264_qpel_pixels_tab;
2648 s->me.qpel_avg= s->dsp.avg_h264_qpel_pixels_tab;
2651 first_mb_in_slice= get_ue_golomb(&s->gb);
2653 if(first_mb_in_slice == 0){ //FIXME better field boundary detection
2654 if(h0->current_slice && FIELD_PICTURE){
2658 h0->current_slice = 0;
2659 if (!s0->first_field)
2660 s->current_picture_ptr= NULL;
2663 slice_type= get_ue_golomb_31(&s->gb);
2665 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);
2670 h->slice_type_fixed=1;
2672 h->slice_type_fixed=0;
2674 slice_type= golomb_to_pict_type[ slice_type ];
2675 if (slice_type == AV_PICTURE_TYPE_I
2676 || (h0->current_slice != 0 && slice_type == h0->last_slice_type) ) {
2677 default_ref_list_done = 1;
2679 h->slice_type= slice_type;
2680 h->slice_type_nos= slice_type & 3;
2682 s->pict_type= h->slice_type; // to make a few old functions happy, it's wrong though
2684 pps_id= get_ue_golomb(&s->gb);
2685 if(pps_id>=MAX_PPS_COUNT){
2686 av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
2689 if(!h0->pps_buffers[pps_id]) {
2690 av_log(h->s.avctx, AV_LOG_ERROR, "non-existing PPS %u referenced\n", pps_id);
2693 h->pps= *h0->pps_buffers[pps_id];
2695 if(!h0->sps_buffers[h->pps.sps_id]) {
2696 av_log(h->s.avctx, AV_LOG_ERROR, "non-existing SPS %u referenced\n", h->pps.sps_id);
2699 h->sps = *h0->sps_buffers[h->pps.sps_id];
2701 s->avctx->profile = ff_h264_get_profile(&h->sps);
2702 s->avctx->level = h->sps.level_idc;
2703 s->avctx->refs = h->sps.ref_frame_count;
2705 if(h == h0 && h->dequant_coeff_pps != pps_id){
2706 h->dequant_coeff_pps = pps_id;
2707 init_dequant_tables(h);
2710 s->mb_width= h->sps.mb_width;
2711 s->mb_height= h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);
2713 h->b_stride= s->mb_width*4;
2715 s->chroma_y_shift = h->sps.chroma_format_idc <= 1; // 400 uses yuv420p
2717 s->width = 16*s->mb_width - (2>>CHROMA444)*FFMIN(h->sps.crop_right, (8<<CHROMA444)-1);
2718 if(h->sps.frame_mbs_only_flag)
2719 s->height= 16*s->mb_height - (1<<s->chroma_y_shift)*FFMIN(h->sps.crop_bottom, (16>>s->chroma_y_shift)-1);
2721 s->height= 16*s->mb_height - (2<<s->chroma_y_shift)*FFMIN(h->sps.crop_bottom, (16>>s->chroma_y_shift)-1);
2723 if (s->context_initialized
2724 && ( s->width != s->avctx->width || s->height != s->avctx->height
2725 || av_cmp_q(h->sps.sar, s->avctx->sample_aspect_ratio))) {
2727 av_log_missing_feature(s->avctx, "Width/height changing with threads is", 0);
2728 return -1; // width / height changed during parallelized decoding
2731 flush_dpb(s->avctx);
2734 if (!s->context_initialized) {
2736 av_log(h->s.avctx, AV_LOG_ERROR, "Cannot (re-)initialize context during parallel decoding.\n");
2740 avcodec_set_dimensions(s->avctx, s->width, s->height);
2741 s->avctx->sample_aspect_ratio= h->sps.sar;
2742 av_assert0(s->avctx->sample_aspect_ratio.den);
2744 if(h->sps.video_signal_type_present_flag){
2745 s->avctx->color_range = h->sps.full_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
2746 if(h->sps.colour_description_present_flag){
2747 s->avctx->color_primaries = h->sps.color_primaries;
2748 s->avctx->color_trc = h->sps.color_trc;
2749 s->avctx->colorspace = h->sps.colorspace;
2753 if(h->sps.timing_info_present_flag){
2754 int64_t den= h->sps.time_scale;
2755 if(h->x264_build < 44U)
2757 av_reduce(&s->avctx->time_base.num, &s->avctx->time_base.den,
2758 h->sps.num_units_in_tick, den, 1<<30);
2761 switch (h->sps.bit_depth_luma) {
2764 if (s->avctx->colorspace == AVCOL_SPC_RGB) {
2765 s->avctx->pix_fmt = PIX_FMT_GBRP9;
2767 s->avctx->pix_fmt = PIX_FMT_YUV444P9;
2768 } else if (CHROMA422)
2769 s->avctx->pix_fmt = PIX_FMT_YUV422P9;
2771 s->avctx->pix_fmt = PIX_FMT_YUV420P9;
2775 if (s->avctx->colorspace == AVCOL_SPC_RGB) {
2776 s->avctx->pix_fmt = PIX_FMT_GBRP10;
2778 s->avctx->pix_fmt = PIX_FMT_YUV444P10;
2779 } else if (CHROMA422)
2780 s->avctx->pix_fmt = PIX_FMT_YUV422P10;
2782 s->avctx->pix_fmt = PIX_FMT_YUV420P10;
2786 if (s->avctx->colorspace == AVCOL_SPC_RGB) {
2787 s->avctx->pix_fmt = PIX_FMT_GBRP;
2789 s->avctx->pix_fmt = s->avctx->color_range == AVCOL_RANGE_JPEG ? PIX_FMT_YUVJ444P : PIX_FMT_YUV444P;
2790 } else if (CHROMA422) {
2791 s->avctx->pix_fmt = s->avctx->color_range == AVCOL_RANGE_JPEG ? PIX_FMT_YUVJ422P : PIX_FMT_YUV422P;
2793 s->avctx->pix_fmt = s->avctx->get_format(s->avctx,
2794 s->avctx->codec->pix_fmts ?
2795 s->avctx->codec->pix_fmts :
2796 s->avctx->color_range == AVCOL_RANGE_JPEG ?
2797 hwaccel_pixfmt_list_h264_jpeg_420 :
2798 ff_hwaccel_pixfmt_list_420);
2802 s->avctx->hwaccel = ff_find_hwaccel(s->avctx->codec->id, s->avctx->pix_fmt);
2804 if (MPV_common_init(s) < 0) {
2805 av_log(h->s.avctx, AV_LOG_ERROR, "MPV_common_init() failed.\n");
2809 h->prev_interlaced_frame = 1;
2811 init_scan_tables(h);
2812 if (ff_h264_alloc_tables(h) < 0) {
2813 av_log(h->s.avctx, AV_LOG_ERROR, "Could not allocate memory for h264\n");
2814 return AVERROR(ENOMEM);
2817 if (!HAVE_THREADS || !(s->avctx->active_thread_type&FF_THREAD_SLICE)) {
2818 if (context_init(h) < 0) {
2819 av_log(h->s.avctx, AV_LOG_ERROR, "context_init() failed.\n");
2823 for(i = 1; i < s->avctx->thread_count; i++) {
2825 c = h->thread_context[i] = av_malloc(sizeof(H264Context));
2826 memcpy(c, h->s.thread_context[i], sizeof(MpegEncContext));
2827 memset(&c->s + 1, 0, sizeof(H264Context) - sizeof(MpegEncContext));
2828 c->h264dsp = h->h264dsp;
2831 c->pixel_shift = h->pixel_shift;
2832 init_scan_tables(c);
2833 clone_tables(c, h, i);
2836 for(i = 0; i < s->avctx->thread_count; i++)
2837 if (context_init(h->thread_context[i]) < 0) {
2838 av_log(h->s.avctx, AV_LOG_ERROR, "context_init() failed.\n");
2844 h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num);
2847 h->mb_aff_frame = 0;
2848 last_pic_structure = s0->picture_structure;
2849 if(h->sps.frame_mbs_only_flag){
2850 s->picture_structure= PICT_FRAME;
2852 if(get_bits1(&s->gb)) { //field_pic_flag
2853 s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag
2855 s->picture_structure= PICT_FRAME;
2856 h->mb_aff_frame = h->sps.mb_aff;
2859 h->mb_field_decoding_flag= s->picture_structure != PICT_FRAME;
2861 if(h0->current_slice == 0){
2862 // Shorten frame num gaps so we don't have to allocate reference frames just to throw them away
2863 if(h->frame_num != h->prev_frame_num) {
2864 int unwrap_prev_frame_num = h->prev_frame_num, max_frame_num = 1<<h->sps.log2_max_frame_num;
2866 if (unwrap_prev_frame_num > h->frame_num) unwrap_prev_frame_num -= max_frame_num;
2868 if ((h->frame_num - unwrap_prev_frame_num) > h->sps.ref_frame_count) {
2869 unwrap_prev_frame_num = (h->frame_num - h->sps.ref_frame_count) - 1;
2870 if (unwrap_prev_frame_num < 0)
2871 unwrap_prev_frame_num += max_frame_num;
2873 h->prev_frame_num = unwrap_prev_frame_num;
2877 while(h->frame_num != h->prev_frame_num &&
2878 h->frame_num != (h->prev_frame_num+1)%(1<<h->sps.log2_max_frame_num)){
2879 Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
2880 av_log(h->s.avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n", h->frame_num, h->prev_frame_num);
2881 if (ff_h264_frame_start(h) < 0)
2883 h->prev_frame_num++;
2884 h->prev_frame_num %= 1<<h->sps.log2_max_frame_num;
2885 s->current_picture_ptr->frame_num= h->prev_frame_num;
2886 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, INT_MAX, 0);
2887 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, INT_MAX, 1);
2888 ff_generate_sliding_window_mmcos(h);
2889 if (ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index) < 0 &&
2890 (s->avctx->err_recognition & AV_EF_EXPLODE))
2891 return AVERROR_INVALIDDATA;
2892 /* Error concealment: if a ref is missing, copy the previous ref in its place.
2893 * FIXME: avoiding a memcpy would be nice, but ref handling makes many assumptions
2894 * about there being no actual duplicates.
2895 * FIXME: this doesn't copy padding for out-of-frame motion vectors. Given we're
2896 * concealing a lost frame, this probably isn't noticeable by comparison, but it should
2898 if (h->short_ref_count) {
2900 av_image_copy(h->short_ref[0]->f.data, h->short_ref[0]->f.linesize,
2901 (const uint8_t**)prev->f.data, prev->f.linesize,
2902 s->avctx->pix_fmt, s->mb_width*16, s->mb_height*16);
2903 h->short_ref[0]->poc = prev->poc+2;
2905 h->short_ref[0]->frame_num = h->prev_frame_num;
2909 /* See if we have a decoded first field looking for a pair... */
2910 if (s0->first_field) {
2911 assert(s0->current_picture_ptr);
2912 assert(s0->current_picture_ptr->f.data[0]);
2913 assert(s0->current_picture_ptr->f.reference != DELAYED_PIC_REF);
2915 /* figure out if we have a complementary field pair */
2916 if (!FIELD_PICTURE || s->picture_structure == last_pic_structure) {
2918 * Previous field is unmatched. Don't display it, but let it
2919 * remain for reference if marked as such.
2921 s0->current_picture_ptr = NULL;
2922 s0->first_field = FIELD_PICTURE;
2925 if (h->nal_ref_idc &&
2926 s0->current_picture_ptr->f.reference &&
2927 s0->current_picture_ptr->frame_num != h->frame_num) {
2929 * This and previous field were reference, but had
2930 * different frame_nums. Consider this field first in
2931 * pair. Throw away previous field except for reference
2934 s0->first_field = 1;
2935 s0->current_picture_ptr = NULL;
2938 /* Second field in complementary pair */
2939 s0->first_field = 0;
2944 /* Frame or first field in a potentially complementary pair */
2945 assert(!s0->current_picture_ptr);
2946 s0->first_field = FIELD_PICTURE;
2949 if(!FIELD_PICTURE || s0->first_field) {
2950 if (ff_h264_frame_start(h) < 0) {
2951 s0->first_field = 0;
2955 ff_release_unused_pictures(s, 0);
2961 s->current_picture_ptr->frame_num= h->frame_num; //FIXME frame_num cleanup
2963 assert(s->mb_num == s->mb_width * s->mb_height);
2964 if(first_mb_in_slice << FIELD_OR_MBAFF_PICTURE >= s->mb_num ||
2965 first_mb_in_slice >= s->mb_num){
2966 av_log(h->s.avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
2969 s->resync_mb_x = s->mb_x = first_mb_in_slice % s->mb_width;
2970 s->resync_mb_y = s->mb_y = (first_mb_in_slice / s->mb_width) << FIELD_OR_MBAFF_PICTURE;
2971 if (s->picture_structure == PICT_BOTTOM_FIELD)
2972 s->resync_mb_y = s->mb_y = s->mb_y + 1;
2973 assert(s->mb_y < s->mb_height);
2975 if(s->picture_structure==PICT_FRAME){
2976 h->curr_pic_num= h->frame_num;
2977 h->max_pic_num= 1<< h->sps.log2_max_frame_num;
2979 h->curr_pic_num= 2*h->frame_num + 1;
2980 h->max_pic_num= 1<<(h->sps.log2_max_frame_num + 1);
2983 if(h->nal_unit_type == NAL_IDR_SLICE){
2984 get_ue_golomb(&s->gb); /* idr_pic_id */
2987 if(h->sps.poc_type==0){
2988 h->poc_lsb= get_bits(&s->gb, h->sps.log2_max_poc_lsb);
2990 if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME){
2991 h->delta_poc_bottom= get_se_golomb(&s->gb);
2995 if(h->sps.poc_type==1 && !h->sps.delta_pic_order_always_zero_flag){
2996 h->delta_poc[0]= get_se_golomb(&s->gb);
2998 if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME)
2999 h->delta_poc[1]= get_se_golomb(&s->gb);
3004 if(h->pps.redundant_pic_cnt_present){
3005 h->redundant_pic_count= get_ue_golomb(&s->gb);
3008 //set defaults, might be overridden a few lines later
3009 h->ref_count[0]= h->pps.ref_count[0];
3010 h->ref_count[1]= h->pps.ref_count[1];
3012 if(h->slice_type_nos != AV_PICTURE_TYPE_I){
3013 if(h->slice_type_nos == AV_PICTURE_TYPE_B){
3014 h->direct_spatial_mv_pred= get_bits1(&s->gb);
3016 num_ref_idx_active_override_flag= get_bits1(&s->gb);
3018 if(num_ref_idx_active_override_flag){
3019 h->ref_count[0]= get_ue_golomb(&s->gb) + 1;
3020 if(h->slice_type_nos==AV_PICTURE_TYPE_B)
3021 h->ref_count[1]= get_ue_golomb(&s->gb) + 1;
3023 if(h->ref_count[0]-1 > 32-1 || h->ref_count[1]-1 > 32-1){
3024 av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
3025 h->ref_count[0]= h->ref_count[1]= 1;
3029 if(h->slice_type_nos == AV_PICTURE_TYPE_B)
3036 if(!default_ref_list_done){
3037 ff_h264_fill_default_ref_list(h);
3040 if(h->slice_type_nos!=AV_PICTURE_TYPE_I && ff_h264_decode_ref_pic_list_reordering(h) < 0) {
3041 h->ref_count[1]= h->ref_count[0]= 0;
3045 if(h->slice_type_nos!=AV_PICTURE_TYPE_I){
3046 s->last_picture_ptr= &h->ref_list[0][0];
3047 ff_copy_picture(&s->last_picture, s->last_picture_ptr);
3049 if(h->slice_type_nos==AV_PICTURE_TYPE_B){
3050 s->next_picture_ptr= &h->ref_list[1][0];
3051 ff_copy_picture(&s->next_picture, s->next_picture_ptr);
3054 if( (h->pps.weighted_pred && h->slice_type_nos == AV_PICTURE_TYPE_P )
3055 || (h->pps.weighted_bipred_idc==1 && h->slice_type_nos== AV_PICTURE_TYPE_B ) )
3056 pred_weight_table(h);
3057 else if(h->pps.weighted_bipred_idc==2 && h->slice_type_nos== AV_PICTURE_TYPE_B){
3058 implicit_weight_table(h, -1);
3061 for (i = 0; i < 2; i++) {
3062 h->luma_weight_flag[i] = 0;
3063 h->chroma_weight_flag[i] = 0;
3067 if(h->nal_ref_idc && ff_h264_decode_ref_pic_marking(h0, &s->gb) < 0 &&
3068 (s->avctx->err_recognition & AV_EF_EXPLODE))
3069 return AVERROR_INVALIDDATA;
3072 ff_h264_fill_mbaff_ref_list(h);
3074 if(h->pps.weighted_bipred_idc==2 && h->slice_type_nos== AV_PICTURE_TYPE_B){
3075 implicit_weight_table(h, 0);
3076 implicit_weight_table(h, 1);
3080 if(h->slice_type_nos==AV_PICTURE_TYPE_B && !h->direct_spatial_mv_pred)
3081 ff_h264_direct_dist_scale_factor(h);
3082 ff_h264_direct_ref_list_init(h);
3084 if( h->slice_type_nos != AV_PICTURE_TYPE_I && h->pps.cabac ){
3085 tmp = get_ue_golomb_31(&s->gb);
3087 av_log(s->avctx, AV_LOG_ERROR, "cabac_init_idc overflow\n");
3090 h->cabac_init_idc= tmp;
3093 h->last_qscale_diff = 0;
3094 tmp = h->pps.init_qp + get_se_golomb(&s->gb);
3095 if(tmp>51+6*(h->sps.bit_depth_luma-8)){
3096 av_log(s->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
3100 h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
3101 h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
3102 //FIXME qscale / qp ... stuff
3103 if(h->slice_type == AV_PICTURE_TYPE_SP){
3104 get_bits1(&s->gb); /* sp_for_switch_flag */
3106 if(h->slice_type==AV_PICTURE_TYPE_SP || h->slice_type == AV_PICTURE_TYPE_SI){
3107 get_se_golomb(&s->gb); /* slice_qs_delta */
3110 h->deblocking_filter = 1;
3111 h->slice_alpha_c0_offset = 52;
3112 h->slice_beta_offset = 52;
3113 if( h->pps.deblocking_filter_parameters_present ) {
3114 tmp= get_ue_golomb_31(&s->gb);
3116 av_log(s->avctx, AV_LOG_ERROR, "deblocking_filter_idc %u out of range\n", tmp);
3119 h->deblocking_filter= tmp;
3120 if(h->deblocking_filter < 2)
3121 h->deblocking_filter^= 1; // 1<->0
3123 if( h->deblocking_filter ) {
3124 h->slice_alpha_c0_offset += get_se_golomb(&s->gb) << 1;
3125 h->slice_beta_offset += get_se_golomb(&s->gb) << 1;
3126 if( h->slice_alpha_c0_offset > 104U
3127 || h->slice_beta_offset > 104U){
3128 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);
3134 if( s->avctx->skip_loop_filter >= AVDISCARD_ALL
3135 ||(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY && h->slice_type_nos != AV_PICTURE_TYPE_I)
3136 ||(s->avctx->skip_loop_filter >= AVDISCARD_BIDIR && h->slice_type_nos == AV_PICTURE_TYPE_B)
3137 ||(s->avctx->skip_loop_filter >= AVDISCARD_NONREF && h->nal_ref_idc == 0))
3138 h->deblocking_filter= 0;
3140 if(h->deblocking_filter == 1 && h0->max_contexts > 1) {
3141 if(s->avctx->flags2 & CODEC_FLAG2_FAST) {
3142 /* Cheat slightly for speed:
3143 Do not bother to deblock across slices. */
3144 h->deblocking_filter = 2;
3146 h0->max_contexts = 1;
3147 if(!h0->single_decode_warning) {
3148 av_log(s->avctx, AV_LOG_INFO, "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
3149 h0->single_decode_warning = 1;
3152 av_log(h->s.avctx, AV_LOG_ERROR, "Deblocking switched inside frame.\n");
3157 h->qp_thresh = 15 + 52 - FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset)
3158 - FFMAX3(0, h->pps.chroma_qp_index_offset[0], h->pps.chroma_qp_index_offset[1])
3159 + 6 * (h->sps.bit_depth_luma - 8);
3162 if( h->pps.num_slice_groups > 1 && h->pps.mb_slice_group_map_type >= 3 && h->pps.mb_slice_group_map_type <= 5)
3163 slice_group_change_cycle= get_bits(&s->gb, ?);
3166 h0->last_slice_type = slice_type;
3167 h->slice_num = ++h0->current_slice;
3168 if(h->slice_num >= MAX_SLICES){
3169 av_log(s->avctx, AV_LOG_ERROR, "Too many slices, increase MAX_SLICES and recompile\n");
3174 int *ref2frm= h->ref2frm[h->slice_num&(MAX_SLICES-1)][j];
3175 for(i=0; i<16; i++){
3177 if (h->ref_list[j][i].f.data[0]) {
3179 uint8_t *base = h->ref_list[j][i].f.base[0];
3180 for(k=0; k<h->short_ref_count; k++)
3181 if (h->short_ref[k]->f.base[0] == base) {
3185 for(k=0; k<h->long_ref_count; k++)
3186 if (h->long_ref[k] && h->long_ref[k]->f.base[0] == base) {
3187 id_list[i]= h->short_ref_count + k;
3196 ref2frm[i+2]= 4*id_list[i]
3197 + (h->ref_list[j][i].f.reference & 3);
3200 for(i=16; i<48; i++)
3201 ref2frm[i+4]= 4*id_list[(i-16)>>1]
3202 + (h->ref_list[j][i].f.reference & 3);
3205 //FIXME: fix draw_edges+PAFF+frame threads
3206 h->emu_edge_width= (s->flags&CODEC_FLAG_EMU_EDGE || (!h->sps.frame_mbs_only_flag && s->avctx->active_thread_type)) ? 0 : 16;
3207 h->emu_edge_height= (FRAME_MBAFF || FIELD_PICTURE) ? 0 : h->emu_edge_width;
3209 if(s->avctx->debug&FF_DEBUG_PICT_INFO){
3210 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",
3212 (s->picture_structure==PICT_FRAME ? "F" : s->picture_structure==PICT_TOP_FIELD ? "T" : "B"),
3214 av_get_picture_type_char(h->slice_type), h->slice_type_fixed ? " fix" : "", h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "",
3215 pps_id, h->frame_num,
3216 s->current_picture_ptr->field_poc[0], s->current_picture_ptr->field_poc[1],
3217 h->ref_count[0], h->ref_count[1],
3219 h->deblocking_filter, h->slice_alpha_c0_offset/2-26, h->slice_beta_offset/2-26,
3221 h->use_weight==1 && h->use_weight_chroma ? "c" : "",
3222 h->slice_type == AV_PICTURE_TYPE_B ? (h->direct_spatial_mv_pred ? "SPAT" : "TEMP") : ""
3229 int ff_h264_get_slice_type(const H264Context *h)
3231 switch (h->slice_type) {
3232 case AV_PICTURE_TYPE_P: return 0;
3233 case AV_PICTURE_TYPE_B: return 1;
3234 case AV_PICTURE_TYPE_I: return 2;
3235 case AV_PICTURE_TYPE_SP: return 3;
3236 case AV_PICTURE_TYPE_SI: return 4;
3241 static av_always_inline void fill_filter_caches_inter(H264Context *h, MpegEncContext * const s, int mb_type, int top_xy,
3242 int left_xy[LEFT_MBS], int top_type, int left_type[LEFT_MBS], int mb_xy, int list)
3244 int b_stride = h->b_stride;
3245 int16_t (*mv_dst)[2] = &h->mv_cache[list][scan8[0]];
3246 int8_t *ref_cache = &h->ref_cache[list][scan8[0]];
3247 if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
3248 if(USES_LIST(top_type, list)){
3249 const int b_xy= h->mb2b_xy[top_xy] + 3*b_stride;
3250 const int b8_xy= 4*top_xy + 2;
3251 int (*ref2frm)[64] = h->ref2frm[ h->slice_table[top_xy]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
3252 AV_COPY128(mv_dst - 1*8, s->current_picture.f.motion_val[list][b_xy + 0]);
3254 ref_cache[1 - 1*8]= ref2frm[list][s->current_picture.f.ref_index[list][b8_xy + 0]];
3256 ref_cache[3 - 1*8]= ref2frm[list][s->current_picture.f.ref_index[list][b8_xy + 1]];
3258 AV_ZERO128(mv_dst - 1*8);
3259 AV_WN32A(&ref_cache[0 - 1*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3262 if(!IS_INTERLACED(mb_type^left_type[LTOP])){
3263 if(USES_LIST(left_type[LTOP], list)){
3264 const int b_xy= h->mb2b_xy[left_xy[LTOP]] + 3;
3265 const int b8_xy= 4*left_xy[LTOP] + 1;
3266 int (*ref2frm)[64] = h->ref2frm[ h->slice_table[left_xy[LTOP]]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
3267 AV_COPY32(mv_dst - 1 + 0, s->current_picture.f.motion_val[list][b_xy + b_stride*0]);
3268 AV_COPY32(mv_dst - 1 + 8, s->current_picture.f.motion_val[list][b_xy + b_stride*1]);
3269 AV_COPY32(mv_dst - 1 + 16, s->current_picture.f.motion_val[list][b_xy + b_stride*2]);
3270 AV_COPY32(mv_dst - 1 + 24, s->current_picture.f.motion_val[list][b_xy + b_stride*3]);
3272 ref_cache[-1 + 8]= ref2frm[list][s->current_picture.f.ref_index[list][b8_xy + 2*0]];
3274 ref_cache[-1 + 24]= ref2frm[list][s->current_picture.f.ref_index[list][b8_xy + 2*1]];
3276 AV_ZERO32(mv_dst - 1 + 0);
3277 AV_ZERO32(mv_dst - 1 + 8);
3278 AV_ZERO32(mv_dst - 1 +16);
3279 AV_ZERO32(mv_dst - 1 +24);
3283 ref_cache[-1 + 24]= LIST_NOT_USED;
3288 if(!USES_LIST(mb_type, list)){
3289 fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0,0), 4);
3290 AV_WN32A(&ref_cache[0*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3291 AV_WN32A(&ref_cache[1*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3292 AV_WN32A(&ref_cache[2*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3293 AV_WN32A(&ref_cache[3*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
3298 int8_t *ref = &s->current_picture.f.ref_index[list][4*mb_xy];
3299 int (*ref2frm)[64] = h->ref2frm[ h->slice_num&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
3300 uint32_t ref01 = (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101;
3301 uint32_t ref23 = (pack16to32(ref2frm[list][ref[2]],ref2frm[list][ref[3]])&0x00FF00FF)*0x0101;
3302 AV_WN32A(&ref_cache[0*8], ref01);
3303 AV_WN32A(&ref_cache[1*8], ref01);
3304 AV_WN32A(&ref_cache[2*8], ref23);
3305 AV_WN32A(&ref_cache[3*8], ref23);
3309 int16_t (*mv_src)[2] = &s->current_picture.f.motion_val[list][4*s->mb_x + 4*s->mb_y*b_stride];
3310 AV_COPY128(mv_dst + 8*0, mv_src + 0*b_stride);
3311 AV_COPY128(mv_dst + 8*1, mv_src + 1*b_stride);
3312 AV_COPY128(mv_dst + 8*2, mv_src + 2*b_stride);
3313 AV_COPY128(mv_dst + 8*3, mv_src + 3*b_stride);
3319 * @return non zero if the loop filter can be skipped
3321 static int fill_filter_caches(H264Context *h, int mb_type){
3322 MpegEncContext * const s = &h->s;
3323 const int mb_xy= h->mb_xy;
3324 int top_xy, left_xy[LEFT_MBS];
3325 int top_type, left_type[LEFT_MBS];
3329 top_xy = mb_xy - (s->mb_stride << MB_FIELD);
3331 /* Wow, what a mess, why didn't they simplify the interlacing & intra
3332 * stuff, I can't imagine that these complex rules are worth it. */
3334 left_xy[LBOT] = left_xy[LTOP] = mb_xy-1;
3336 const int left_mb_field_flag = IS_INTERLACED(s->current_picture.f.mb_type[mb_xy - 1]);
3337 const int curr_mb_field_flag = IS_INTERLACED(mb_type);
3339 if (left_mb_field_flag != curr_mb_field_flag) {
3340 left_xy[LTOP] -= s->mb_stride;
3343 if(curr_mb_field_flag){
3344 top_xy += s->mb_stride & (((s->current_picture.f.mb_type[top_xy] >> 7) & 1) - 1);
3346 if (left_mb_field_flag != curr_mb_field_flag) {
3347 left_xy[LBOT] += s->mb_stride;
3352 h->top_mb_xy = top_xy;
3353 h->left_mb_xy[LTOP] = left_xy[LTOP];
3354 h->left_mb_xy[LBOT] = left_xy[LBOT];
3356 //for sufficiently low qp, filtering wouldn't do anything
3357 //this is a conservative estimate: could also check beta_offset and more accurate chroma_qp
3358 int qp_thresh = h->qp_thresh; //FIXME strictly we should store qp_thresh for each mb of a slice
3359 int qp = s->current_picture.f.qscale_table[mb_xy];
3361 && (left_xy[LTOP] < 0 || ((qp + s->current_picture.f.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh)
3362 && (top_xy < 0 || ((qp + s->current_picture.f.qscale_table[top_xy ] + 1) >> 1) <= qp_thresh)) {
3365 if ((left_xy[LTOP] < 0 || ((qp + s->current_picture.f.qscale_table[left_xy[LBOT] ] + 1) >> 1) <= qp_thresh) &&
3366 (top_xy < s->mb_stride || ((qp + s->current_picture.f.qscale_table[top_xy - s->mb_stride] + 1) >> 1) <= qp_thresh))
3371 top_type = s->current_picture.f.mb_type[top_xy];
3372 left_type[LTOP] = s->current_picture.f.mb_type[left_xy[LTOP]];
3373 left_type[LBOT] = s->current_picture.f.mb_type[left_xy[LBOT]];
3374 if(h->deblocking_filter == 2){
3375 if(h->slice_table[top_xy ] != h->slice_num) top_type= 0;
3376 if(h->slice_table[left_xy[LBOT]] != h->slice_num) left_type[LTOP]= left_type[LBOT]= 0;
3378 if(h->slice_table[top_xy ] == 0xFFFF) top_type= 0;
3379 if(h->slice_table[left_xy[LBOT]] == 0xFFFF) left_type[LTOP]= left_type[LBOT] =0;
3381 h->top_type = top_type;
3382 h->left_type[LTOP]= left_type[LTOP];
3383 h->left_type[LBOT]= left_type[LBOT];
3385 if(IS_INTRA(mb_type))
3388 fill_filter_caches_inter(h, s, mb_type, top_xy, left_xy, top_type, left_type, mb_xy, 0);
3389 if(h->list_count == 2)
3390 fill_filter_caches_inter(h, s, mb_type, top_xy, left_xy, top_type, left_type, mb_xy, 1);
3392 nnz = h->non_zero_count[mb_xy];
3393 nnz_cache = h->non_zero_count_cache;
3394 AV_COPY32(&nnz_cache[4+8*1], &nnz[ 0]);
3395 AV_COPY32(&nnz_cache[4+8*2], &nnz[ 4]);
3396 AV_COPY32(&nnz_cache[4+8*3], &nnz[ 8]);
3397 AV_COPY32(&nnz_cache[4+8*4], &nnz[12]);
3398 h->cbp= h->cbp_table[mb_xy];
3401 nnz = h->non_zero_count[top_xy];
3402 AV_COPY32(&nnz_cache[4+8*0], &nnz[3*4]);
3405 if(left_type[LTOP]){
3406 nnz = h->non_zero_count[left_xy[LTOP]];
3407 nnz_cache[3+8*1]= nnz[3+0*4];
3408 nnz_cache[3+8*2]= nnz[3+1*4];
3409 nnz_cache[3+8*3]= nnz[3+2*4];
3410 nnz_cache[3+8*4]= nnz[3+3*4];
3413 // CAVLC 8x8dct requires NNZ values for residual decoding that differ from what the loop filter needs
3414 if(!CABAC && h->pps.transform_8x8_mode){
3415 if(IS_8x8DCT(top_type)){
3417 nnz_cache[5+8*0]= (h->cbp_table[top_xy] & 0x4000) >> 12;
3419 nnz_cache[7+8*0]= (h->cbp_table[top_xy] & 0x8000) >> 12;
3421 if(IS_8x8DCT(left_type[LTOP])){
3423 nnz_cache[3+8*2]= (h->cbp_table[left_xy[LTOP]]&0x2000) >> 12; //FIXME check MBAFF
3425 if(IS_8x8DCT(left_type[LBOT])){
3427 nnz_cache[3+8*4]= (h->cbp_table[left_xy[LBOT]]&0x8000) >> 12; //FIXME check MBAFF
3430 if(IS_8x8DCT(mb_type)){
3431 nnz_cache[scan8[0 ]]= nnz_cache[scan8[1 ]]=
3432 nnz_cache[scan8[2 ]]= nnz_cache[scan8[3 ]]= (h->cbp & 0x1000) >> 12;
3434 nnz_cache[scan8[0+ 4]]= nnz_cache[scan8[1+ 4]]=
3435 nnz_cache[scan8[2+ 4]]= nnz_cache[scan8[3+ 4]]= (h->cbp & 0x2000) >> 12;
3437 nnz_cache[scan8[0+ 8]]= nnz_cache[scan8[1+ 8]]=
3438 nnz_cache[scan8[2+ 8]]= nnz_cache[scan8[3+ 8]]= (h->cbp & 0x4000) >> 12;
3440 nnz_cache[scan8[0+12]]= nnz_cache[scan8[1+12]]=
3441 nnz_cache[scan8[2+12]]= nnz_cache[scan8[3+12]]= (h->cbp & 0x8000) >> 12;
3448 static void loop_filter(H264Context *h, int start_x, int end_x){
3449 MpegEncContext * const s = &h->s;
3450 uint8_t *dest_y, *dest_cb, *dest_cr;
3451 int linesize, uvlinesize, mb_x, mb_y;
3452 const int end_mb_y= s->mb_y + FRAME_MBAFF;
3453 const int old_slice_type= h->slice_type;
3454 const int pixel_shift = h->pixel_shift;
3455 const int block_h = 16 >> s->chroma_y_shift;
3457 if(h->deblocking_filter) {
3458 for(mb_x= start_x; mb_x<end_x; mb_x++){
3459 for(mb_y=end_mb_y - FRAME_MBAFF; mb_y<= end_mb_y; mb_y++){
3461 mb_xy = h->mb_xy = mb_x + mb_y*s->mb_stride;
3462 h->slice_num= h->slice_table[mb_xy];
3463 mb_type = s->current_picture.f.mb_type[mb_xy];
3464 h->list_count= h->list_counts[mb_xy];
3467 h->mb_mbaff = h->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
3471 dest_y = s->current_picture.f.data[0] + ((mb_x << pixel_shift) + mb_y * s->linesize ) * 16;
3472 dest_cb = s->current_picture.f.data[1] + (mb_x << pixel_shift) * (8 << CHROMA444) + mb_y * s->uvlinesize * block_h;
3473 dest_cr = s->current_picture.f.data[2] + (mb_x << pixel_shift) * (8 << CHROMA444) + mb_y * s->uvlinesize * block_h;
3474 //FIXME simplify above
3477 linesize = h->mb_linesize = s->linesize * 2;
3478 uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
3479 if(mb_y&1){ //FIXME move out of this function?
3480 dest_y -= s->linesize*15;
3481 dest_cb-= s->uvlinesize * (block_h - 1);
3482 dest_cr-= s->uvlinesize * (block_h - 1);
3485 linesize = h->mb_linesize = s->linesize;
3486 uvlinesize = h->mb_uvlinesize = s->uvlinesize;
3488 backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0);
3489 if(fill_filter_caches(h, mb_type))
3491 h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.f.qscale_table[mb_xy]);
3492 h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.f.qscale_table[mb_xy]);
3495 ff_h264_filter_mb (h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
3497 ff_h264_filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
3502 h->slice_type= old_slice_type;
3504 s->mb_y= end_mb_y - FRAME_MBAFF;
3505 h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
3506 h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
3509 static void predict_field_decoding_flag(H264Context *h){
3510 MpegEncContext * const s = &h->s;
3511 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
3512 int mb_type = (h->slice_table[mb_xy-1] == h->slice_num)
3513 ? s->current_picture.f.mb_type[mb_xy - 1]
3514 : (h->slice_table[mb_xy-s->mb_stride] == h->slice_num)
3515 ? s->current_picture.f.mb_type[mb_xy - s->mb_stride]
3517 h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
3521 * Draw edges and report progress for the last MB row.
3523 static void decode_finish_row(H264Context *h){
3524 MpegEncContext * const s = &h->s;
3525 int top = 16*(s->mb_y >> FIELD_PICTURE);
3526 int height = 16 << FRAME_MBAFF;
3527 int deblock_border = (16 + 4) << FRAME_MBAFF;
3528 int pic_height = 16*s->mb_height >> FIELD_PICTURE;
3530 if (h->deblocking_filter) {
3531 if((top + height) >= pic_height)
3532 height += deblock_border;
3534 top -= deblock_border;
3537 if (top >= pic_height || (top + height) < h->emu_edge_height)
3540 height = FFMIN(height, pic_height - top);
3541 if (top < h->emu_edge_height) {
3542 height = top+height;
3546 ff_draw_horiz_band(s, top, height);
3548 if (s->dropable) return;
3550 ff_thread_report_progress((AVFrame*)s->current_picture_ptr, top + height - 1,
3551 s->picture_structure==PICT_BOTTOM_FIELD);
3554 static int decode_slice(struct AVCodecContext *avctx, void *arg){
3555 H264Context *h = *(void**)arg;
3556 MpegEncContext * const s = &h->s;
3557 const int part_mask= s->partitioned_frame ? (AC_END|AC_ERROR) : 0x7F;
3558 int lf_x_start = s->mb_x;
3562 h->is_complex = FRAME_MBAFF || s->picture_structure != PICT_FRAME || s->codec_id != CODEC_ID_H264 ||
3563 (CONFIG_GRAY && (s->flags&CODEC_FLAG_GRAY));
3565 if( h->pps.cabac ) {
3567 align_get_bits( &s->gb );
3570 ff_init_cabac_states( &h->cabac);
3571 ff_init_cabac_decoder( &h->cabac,
3572 s->gb.buffer + get_bits_count(&s->gb)/8,
3573 (get_bits_left(&s->gb) + 7)/8);
3575 ff_h264_init_cabac_states(h);
3579 int ret = ff_h264_decode_mb_cabac(h);
3581 //STOP_TIMER("decode_mb_cabac")
3583 if(ret>=0) ff_h264_hl_decode_mb(h);
3585 if( ret >= 0 && FRAME_MBAFF ) { //FIXME optimal? or let mb_decode decode 16x32 ?
3588 ret = ff_h264_decode_mb_cabac(h);
3590 if(ret>=0) ff_h264_hl_decode_mb(h);
3593 eos = get_cabac_terminate( &h->cabac );
3595 if((s->workaround_bugs & FF_BUG_TRUNCATED) && h->cabac.bytestream > h->cabac.bytestream_end + 2){
3596 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);
3597 if (s->mb_x >= lf_x_start) loop_filter(h, lf_x_start, s->mb_x + 1);
3600 if( ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 2) {
3601 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);
3602 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);
3606 if( ++s->mb_x >= s->mb_width ) {
3607 loop_filter(h, lf_x_start, s->mb_x);
3608 s->mb_x = lf_x_start = 0;
3609 decode_finish_row(h);
3611 if(FIELD_OR_MBAFF_PICTURE) {
3613 if(FRAME_MBAFF && s->mb_y < s->mb_height)
3614 predict_field_decoding_flag(h);
3618 if( eos || s->mb_y >= s->mb_height ) {
3619 tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
3620 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);
3621 if (s->mb_x > lf_x_start) loop_filter(h, lf_x_start, s->mb_x);
3628 int ret = ff_h264_decode_mb_cavlc(h);
3630 if(ret>=0) ff_h264_hl_decode_mb(h);
3632 if(ret>=0 && FRAME_MBAFF){ //FIXME optimal? or let mb_decode decode 16x32 ?
3634 ret = ff_h264_decode_mb_cavlc(h);
3636 if(ret>=0) ff_h264_hl_decode_mb(h);
3641 av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
3642 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);
3646 if(++s->mb_x >= s->mb_width){
3647 loop_filter(h, lf_x_start, s->mb_x);
3648 s->mb_x = lf_x_start = 0;
3649 decode_finish_row(h);
3651 if(FIELD_OR_MBAFF_PICTURE) {
3653 if(FRAME_MBAFF && s->mb_y < s->mb_height)
3654 predict_field_decoding_flag(h);
3656 if(s->mb_y >= s->mb_height){
3657 tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
3659 if(get_bits_count(&s->gb) == s->gb.size_in_bits ) {
3660 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);
3664 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);
3671 if(get_bits_count(&s->gb) >= s->gb.size_in_bits && s->mb_skip_run<=0){
3672 tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
3673 if(get_bits_count(&s->gb) == s->gb.size_in_bits ){
3674 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);
3675 if (s->mb_x > lf_x_start) loop_filter(h, lf_x_start, s->mb_x);
3679 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);
3689 * Call decode_slice() for each context.
3691 * @param h h264 master context
3692 * @param context_count number of contexts to execute
3694 static int execute_decode_slices(H264Context *h, int context_count){
3695 MpegEncContext * const s = &h->s;
3696 AVCodecContext * const avctx= s->avctx;
3700 if (s->avctx->hwaccel || s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
3702 if(context_count == 1) {
3703 return decode_slice(avctx, &h);
3705 for(i = 1; i < context_count; i++) {
3706 hx = h->thread_context[i];
3707 hx->s.error_recognition = avctx->error_recognition;
3708 hx->s.error_count = 0;
3711 avctx->execute(avctx, (void *)decode_slice,
3712 h->thread_context, NULL, context_count, sizeof(void*));
3714 /* pull back stuff from slices to master context */
3715 hx = h->thread_context[context_count - 1];
3716 s->mb_x = hx->s.mb_x;
3717 s->mb_y = hx->s.mb_y;
3718 s->dropable = hx->s.dropable;
3719 s->picture_structure = hx->s.picture_structure;
3720 for(i = 1; i < context_count; i++)
3721 h->s.error_count += h->thread_context[i]->s.error_count;
3728 static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){
3729 MpegEncContext * const s = &h->s;
3730 AVCodecContext * const avctx= s->avctx;
3731 H264Context *hx; ///< thread context
3735 int pass = !(avctx->active_thread_type & FF_THREAD_FRAME);
3736 int nals_needed=0; ///< number of NALs that need decoding before the next frame thread starts
3739 h->max_contexts = (HAVE_THREADS && (s->avctx->active_thread_type&FF_THREAD_SLICE)) ? avctx->thread_count : 1;
3740 if(!(s->flags2 & CODEC_FLAG2_CHUNKS)){
3741 h->current_slice = 0;
3742 if (!s->first_field)
3743 s->current_picture_ptr= NULL;
3744 ff_h264_reset_sei(h);
3747 for(;pass <= 1;pass++){
3750 next_avc = h->is_avc ? 0 : buf_size;
3760 if(buf_index >= next_avc) {
3761 if(buf_index >= buf_size) break;
3763 for(i = 0; i < h->nal_length_size; i++)
3764 nalsize = (nalsize << 8) | buf[buf_index++];
3765 if(nalsize <= 0 || nalsize > buf_size - buf_index){
3766 av_log(h->s.avctx, AV_LOG_ERROR, "AVC: nal size %d\n", nalsize);
3769 next_avc= buf_index + nalsize;
3771 // start code prefix search
3772 for(; buf_index + 3 < next_avc; buf_index++){
3773 // This should always succeed in the first iteration.
3774 if(buf[buf_index] == 0 && buf[buf_index+1] == 0 && buf[buf_index+2] == 1)
3778 if(buf_index+3 >= buf_size) break;
3781 if(buf_index >= next_avc) continue;
3784 hx = h->thread_context[context_count];
3786 ptr= ff_h264_decode_nal(hx, buf + buf_index, &dst_length, &consumed, next_avc - buf_index);
3787 if (ptr==NULL || dst_length < 0){
3790 i= buf_index + consumed;
3791 if((s->workaround_bugs & FF_BUG_AUTODETECT) && i+3<next_avc &&
3792 buf[i]==0x00 && buf[i+1]==0x00 && buf[i+2]==0x01 && buf[i+3]==0xE0)
3793 s->workaround_bugs |= FF_BUG_TRUNCATED;
3795 if(!(s->workaround_bugs & FF_BUG_TRUNCATED)){
3796 while(ptr[dst_length - 1] == 0 && dst_length > 0)
3799 bit_length= !dst_length ? 0 : (8*dst_length - ff_h264_decode_rbsp_trailing(h, ptr + dst_length - 1));
3801 if(s->avctx->debug&FF_DEBUG_STARTCODE){
3802 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);
3805 if (h->is_avc && (nalsize != consumed) && nalsize){
3806 av_log(h->s.avctx, AV_LOG_DEBUG, "AVC: Consumed only %d bytes instead of %d\n", consumed, nalsize);
3809 buf_index += consumed;
3813 // packets can sometimes contain multiple PPS/SPS
3814 // e.g. two PAFF field pictures in one packet, or a demuxer which splits NALs strangely
3815 // if so, when frame threading we can't start the next thread until we've read all of them
3816 switch (hx->nal_unit_type) {
3819 nals_needed = nal_index;
3823 init_get_bits(&hx->s.gb, ptr, bit_length);
3824 if (!get_ue_golomb(&hx->s.gb))
3825 nals_needed = nal_index;
3830 //FIXME do not discard SEI id
3831 if(avctx->skip_frame >= AVDISCARD_NONREF && h->nal_ref_idc == 0)
3836 switch(hx->nal_unit_type){
3838 if (h->nal_unit_type != NAL_IDR_SLICE) {
3839 av_log(h->s.avctx, AV_LOG_ERROR, "Invalid mix of idr and non-idr slices");
3842 idr(h); // FIXME ensure we don't lose some frames if there is reordering
3844 init_get_bits(&hx->s.gb, ptr, bit_length);
3846 hx->inter_gb_ptr= &hx->s.gb;
3847 hx->s.data_partitioning = 0;
3849 if((err = decode_slice_header(hx, h)))
3852 s->current_picture_ptr->f.key_frame |=
3853 (hx->nal_unit_type == NAL_IDR_SLICE) ||
3854 (h->sei_recovery_frame_cnt >= 0);
3856 if (h->current_slice == 1) {
3857 if(!(s->flags2 & CODEC_FLAG2_CHUNKS)) {
3858 decode_postinit(h, nal_index >= nals_needed);
3861 if (s->avctx->hwaccel && s->avctx->hwaccel->start_frame(s->avctx, NULL, 0) < 0)
3863 if(CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
3864 ff_vdpau_h264_picture_start(s);
3867 if(hx->redundant_pic_count==0
3868 && (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
3869 && (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type_nos!=AV_PICTURE_TYPE_B)
3870 && (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==AV_PICTURE_TYPE_I)
3871 && avctx->skip_frame < AVDISCARD_ALL){
3872 if(avctx->hwaccel) {
3873 if (avctx->hwaccel->decode_slice(avctx, &buf[buf_index - consumed], consumed) < 0)
3876 if(CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU){
3877 static const uint8_t start_code[] = {0x00, 0x00, 0x01};
3878 ff_vdpau_add_data_chunk(s, start_code, sizeof(start_code));
3879 ff_vdpau_add_data_chunk(s, &buf[buf_index - consumed], consumed );
3885 init_get_bits(&hx->s.gb, ptr, bit_length);
3887 hx->inter_gb_ptr= NULL;
3889 if ((err = decode_slice_header(hx, h)) < 0)
3892 hx->s.data_partitioning = 1;
3896 init_get_bits(&hx->intra_gb, ptr, bit_length);
3897 hx->intra_gb_ptr= &hx->intra_gb;
3900 init_get_bits(&hx->inter_gb, ptr, bit_length);
3901 hx->inter_gb_ptr= &hx->inter_gb;
3903 if(hx->redundant_pic_count==0 && hx->intra_gb_ptr && hx->s.data_partitioning
3904 && s->context_initialized
3905 && (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
3906 && (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type_nos!=AV_PICTURE_TYPE_B)
3907 && (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==AV_PICTURE_TYPE_I)
3908 && avctx->skip_frame < AVDISCARD_ALL)
3912 init_get_bits(&s->gb, ptr, bit_length);
3913 ff_h264_decode_sei(h);
3916 init_get_bits(&s->gb, ptr, bit_length);
3917 ff_h264_decode_seq_parameter_set(h);
3919 if (s->flags& CODEC_FLAG_LOW_DELAY ||
3920 (h->sps.bitstream_restriction_flag && !h->sps.num_reorder_frames))
3923 if(avctx->has_b_frames < 2)
3924 avctx->has_b_frames= !s->low_delay;
3926 if (avctx->bits_per_raw_sample != h->sps.bit_depth_luma ||
3927 h->cur_chroma_format_idc != h->sps.chroma_format_idc) {
3928 if (h->sps.bit_depth_luma >= 8 && h->sps.bit_depth_luma <= 10) {
3929 avctx->bits_per_raw_sample = h->sps.bit_depth_luma;
3930 h->cur_chroma_format_idc = h->sps.chroma_format_idc;
3931 h->pixel_shift = h->sps.bit_depth_luma > 8;
3933 ff_h264dsp_init(&h->h264dsp, h->sps.bit_depth_luma, h->sps.chroma_format_idc);
3934 ff_h264_pred_init(&h->hpc, s->codec_id, h->sps.bit_depth_luma, h->sps.chroma_format_idc);
3935 s->dsp.dct_bits = h->sps.bit_depth_luma > 8 ? 32 : 16;
3936 dsputil_init(&s->dsp, s->avctx);
3938 av_log(avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n", h->sps.bit_depth_luma);
3944 init_get_bits(&s->gb, ptr, bit_length);
3946 ff_h264_decode_picture_parameter_set(h, bit_length);
3950 case NAL_END_SEQUENCE:
3951 case NAL_END_STREAM:
3952 case NAL_FILLER_DATA:
3954 case NAL_AUXILIARY_SLICE:
3957 av_log(avctx, AV_LOG_DEBUG, "Unknown NAL code: %d (%d bits)\n", hx->nal_unit_type, bit_length);
3960 if(context_count == h->max_contexts) {
3961 execute_decode_slices(h, context_count);
3966 av_log(h->s.avctx, AV_LOG_ERROR, "decode_slice_header error\n");
3968 /* Slice could not be decoded in parallel mode, copy down
3969 * NAL unit stuff to context 0 and restart. Note that
3970 * rbsp_buffer is not transferred, but since we no longer
3971 * run in parallel mode this should not be an issue. */
3972 h->nal_unit_type = hx->nal_unit_type;
3973 h->nal_ref_idc = hx->nal_ref_idc;
3980 execute_decode_slices(h, context_count);
3985 * returns the number of bytes consumed for building the current frame
3987 static int get_consumed_bytes(MpegEncContext *s, int pos, int buf_size){
3988 if(pos==0) pos=1; //avoid infinite loops (i doubt that is needed but ...)
3989 if(pos+10>buf_size) pos=buf_size; // oops ;)
3994 static int decode_frame(AVCodecContext *avctx,
3995 void *data, int *data_size,
3998 const uint8_t *buf = avpkt->data;
3999 int buf_size = avpkt->size;
4000 H264Context *h = avctx->priv_data;
4001 MpegEncContext *s = &h->s;
4002 AVFrame *pict = data;
4005 s->flags= avctx->flags;
4006 s->flags2= avctx->flags2;
4008 /* end of stream, output what is still in the buffers */
4010 if (buf_size == 0) {
4014 s->current_picture_ptr = NULL;
4016 //FIXME factorize this with the output code below
4017 out = h->delayed_pic[0];
4019 for (i = 1; h->delayed_pic[i] && !h->delayed_pic[i]->f.key_frame && !h->delayed_pic[i]->mmco_reset; i++)
4020 if(h->delayed_pic[i]->poc < out->poc){
4021 out = h->delayed_pic[i];
4025 for(i=out_idx; h->delayed_pic[i]; i++)
4026 h->delayed_pic[i] = h->delayed_pic[i+1];
4029 *data_size = sizeof(AVFrame);
4030 *pict= *(AVFrame*)out;
4036 buf_index=decode_nal_units(h, buf, buf_size);
4040 if (!s->current_picture_ptr && h->nal_unit_type == NAL_END_SEQUENCE) {
4045 if(!(s->flags2 & CODEC_FLAG2_CHUNKS) && !s->current_picture_ptr){
4046 if (avctx->skip_frame >= AVDISCARD_NONREF)
4048 av_log(avctx, AV_LOG_ERROR, "no frame!\n");
4052 if(!(s->flags2 & CODEC_FLAG2_CHUNKS) || (s->mb_y >= s->mb_height && s->mb_height)){
4054 if(s->flags2 & CODEC_FLAG2_CHUNKS) decode_postinit(h, 1);
4058 if (!h->next_output_pic) {
4059 /* Wait for second field. */
4063 *data_size = sizeof(AVFrame);
4064 *pict = *(AVFrame*)h->next_output_pic;
4068 assert(pict->data[0] || !*data_size);
4069 ff_print_debug_info(s, pict);
4070 //printf("out %d\n", (int)pict->data[0]);
4072 return get_consumed_bytes(s, buf_index, buf_size);
4075 static inline void fill_mb_avail(H264Context *h){
4076 MpegEncContext * const s = &h->s;
4077 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
4080 h->mb_avail[0]= s->mb_x && h->slice_table[mb_xy - s->mb_stride - 1] == h->slice_num;
4081 h->mb_avail[1]= h->slice_table[mb_xy - s->mb_stride ] == h->slice_num;
4082 h->mb_avail[2]= s->mb_x+1 < s->mb_width && h->slice_table[mb_xy - s->mb_stride + 1] == h->slice_num;
4088 h->mb_avail[3]= s->mb_x && h->slice_table[mb_xy - 1] == h->slice_num;
4089 h->mb_avail[4]= 1; //FIXME move out
4090 h->mb_avail[5]= 0; //FIXME move out
4098 #define SIZE (COUNT*40)
4104 // int int_temp[10000];
4106 AVCodecContext avctx;
4108 dsputil_init(&dsp, &avctx);
4110 init_put_bits(&pb, temp, SIZE);
4111 printf("testing unsigned exp golomb\n");
4112 for(i=0; i<COUNT; i++){
4114 set_ue_golomb(&pb, i);
4115 STOP_TIMER("set_ue_golomb");
4117 flush_put_bits(&pb);
4119 init_get_bits(&gb, temp, 8*SIZE);
4120 for(i=0; i<COUNT; i++){
4123 s= show_bits(&gb, 24);
4126 j= get_ue_golomb(&gb);
4128 printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
4131 STOP_TIMER("get_ue_golomb");
4135 init_put_bits(&pb, temp, SIZE);
4136 printf("testing signed exp golomb\n");
4137 for(i=0; i<COUNT; i++){
4139 set_se_golomb(&pb, i - COUNT/2);
4140 STOP_TIMER("set_se_golomb");
4142 flush_put_bits(&pb);
4144 init_get_bits(&gb, temp, 8*SIZE);
4145 for(i=0; i<COUNT; i++){
4148 s= show_bits(&gb, 24);
4151 j= get_se_golomb(&gb);
4152 if(j != i - COUNT/2){
4153 printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
4156 STOP_TIMER("get_se_golomb");
4159 printf("Testing RBSP\n");
4167 av_cold void ff_h264_free_context(H264Context *h)
4171 free_tables(h, 1); //FIXME cleanup init stuff perhaps
4173 for(i = 0; i < MAX_SPS_COUNT; i++)
4174 av_freep(h->sps_buffers + i);
4176 for(i = 0; i < MAX_PPS_COUNT; i++)
4177 av_freep(h->pps_buffers + i);
4180 av_cold int ff_h264_decode_end(AVCodecContext *avctx)
4182 H264Context *h = avctx->priv_data;
4183 MpegEncContext *s = &h->s;
4185 ff_h264_free_context(h);
4189 // memset(h, 0, sizeof(H264Context));
4194 static const AVProfile profiles[] = {
4195 { FF_PROFILE_H264_BASELINE, "Baseline" },
4196 { FF_PROFILE_H264_CONSTRAINED_BASELINE, "Constrained Baseline" },
4197 { FF_PROFILE_H264_MAIN, "Main" },
4198 { FF_PROFILE_H264_EXTENDED, "Extended" },
4199 { FF_PROFILE_H264_HIGH, "High" },
4200 { FF_PROFILE_H264_HIGH_10, "High 10" },
4201 { FF_PROFILE_H264_HIGH_10_INTRA, "High 10 Intra" },
4202 { FF_PROFILE_H264_HIGH_422, "High 4:2:2" },
4203 { FF_PROFILE_H264_HIGH_422_INTRA, "High 4:2:2 Intra" },
4204 { FF_PROFILE_H264_HIGH_444, "High 4:4:4" },
4205 { FF_PROFILE_H264_HIGH_444_PREDICTIVE, "High 4:4:4 Predictive" },
4206 { FF_PROFILE_H264_HIGH_444_INTRA, "High 4:4:4 Intra" },
4207 { FF_PROFILE_H264_CAVLC_444, "CAVLC 4:4:4" },
4208 { FF_PROFILE_UNKNOWN },
4211 AVCodec ff_h264_decoder = {
4213 .type = AVMEDIA_TYPE_VIDEO,
4214 .id = CODEC_ID_H264,
4215 .priv_data_size = sizeof(H264Context),
4216 .init = ff_h264_decode_init,
4217 .close = ff_h264_decode_end,
4218 .decode = decode_frame,
4219 .capabilities = /*CODEC_CAP_DRAW_HORIZ_BAND |*/ CODEC_CAP_DR1 | CODEC_CAP_DELAY |
4220 CODEC_CAP_SLICE_THREADS | CODEC_CAP_FRAME_THREADS,
4222 .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
4223 .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy),
4224 .update_thread_context = ONLY_IF_THREADS_ENABLED(decode_update_thread_context),
4225 .profiles = NULL_IF_CONFIG_SMALL(profiles),
4228 #if CONFIG_H264_VDPAU_DECODER
4229 AVCodec ff_h264_vdpau_decoder = {
4230 .name = "h264_vdpau",
4231 .type = AVMEDIA_TYPE_VIDEO,
4232 .id = CODEC_ID_H264,
4233 .priv_data_size = sizeof(H264Context),
4234 .init = ff_h264_decode_init,
4235 .close = ff_h264_decode_end,
4236 .decode = decode_frame,
4237 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU,
4239 .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)"),
4240 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_VDPAU_H264, PIX_FMT_NONE},
4241 .profiles = NULL_IF_CONFIG_SMALL(profiles),