2 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * H.264 / AVC / MPEG4 part10 codec.
24 * @author Michael Niedermayer <michaelni@gmx.at>
30 #include "mpegvideo.h"
39 #define interlaced_dct interlaced_dct_is_a_bad_name
40 #define mb_intra mb_intra_isnt_initalized_see_mb_type
42 #define LUMA_DC_BLOCK_INDEX 25
43 #define CHROMA_DC_BLOCK_INDEX 26
45 #define CHROMA_DC_COEFF_TOKEN_VLC_BITS 8
46 #define COEFF_TOKEN_VLC_BITS 8
47 #define TOTAL_ZEROS_VLC_BITS 9
48 #define CHROMA_DC_TOTAL_ZEROS_VLC_BITS 3
49 #define RUN_VLC_BITS 3
50 #define RUN7_VLC_BITS 6
52 #define MAX_SPS_COUNT 32
53 #define MAX_PPS_COUNT 256
55 #define MAX_MMCO_COUNT 66
58 * Sequence parameter set
64 int log2_max_frame_num; ///< log2_max_frame_num_minus4 + 4
65 int poc_type; ///< pic_order_cnt_type
66 int log2_max_poc_lsb; ///< log2_max_pic_order_cnt_lsb_minus4
67 int delta_pic_order_always_zero_flag;
68 int offset_for_non_ref_pic;
69 int offset_for_top_to_bottom_field;
70 int poc_cycle_length; ///< num_ref_frames_in_pic_order_cnt_cycle
71 int ref_frame_count; ///< num_ref_frames
72 int gaps_in_frame_num_allowed_flag;
73 int mb_width; ///< frame_width_in_mbs_minus1 + 1
74 int mb_height; ///< frame_height_in_mbs_minus1 + 1
75 int frame_mbs_only_flag;
76 int mb_aff; ///<mb_adaptive_frame_field_flag
77 int direct_8x8_inference_flag;
78 int crop; ///< frame_cropping_flag
79 int crop_left; ///< frame_cropping_rect_left_offset
80 int crop_right; ///< frame_cropping_rect_right_offset
81 int crop_top; ///< frame_cropping_rect_top_offset
82 int crop_bottom; ///< frame_cropping_rect_bottom_offset
83 int vui_parameters_present_flag;
85 int timing_info_present_flag;
86 uint32_t num_units_in_tick;
88 int fixed_frame_rate_flag;
89 short offset_for_ref_frame[256]; //FIXME dyn aloc?
93 * Picture parameter set
97 int cabac; ///< entropy_coding_mode_flag
98 int pic_order_present; ///< pic_order_present_flag
99 int slice_group_count; ///< num_slice_groups_minus1 + 1
100 int mb_slice_group_map_type;
101 int ref_count[2]; ///< num_ref_idx_l0/1_active_minus1 + 1
102 int weighted_pred; ///< weighted_pred_flag
103 int weighted_bipred_idc;
104 int init_qp; ///< pic_init_qp_minus26 + 26
105 int init_qs; ///< pic_init_qs_minus26 + 26
106 int chroma_qp_index_offset;
107 int deblocking_filter_parameters_present; ///< deblocking_filter_parameters_present_flag
108 int constrained_intra_pred; ///< constrained_intra_pred_flag
109 int redundant_pic_cnt_present; ///< redundant_pic_cnt_present_flag
113 * Memory management control operation opcode.
115 typedef enum MMCOOpcode{
126 * Memory management control operation.
137 typedef struct H264Context{
145 #define NAL_IDR_SLICE 5
149 #define NAL_PICTURE_DELIMITER 9
150 #define NAL_FILTER_DATA 10
151 uint8_t *rbsp_buffer;
152 int rbsp_buffer_size;
155 * Used to parse AVC variant of h264
157 int is_avc; ///< this flag is != 0 if codec is avc1
158 int got_avcC; ///< flag used to parse avcC data only once
159 int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
163 int prev_mb_skiped; //FIXME remove (IMHO not used)
166 int chroma_pred_mode;
167 int intra16x16_pred_mode;
169 int8_t intra4x4_pred_mode_cache[5*8];
170 int8_t (*intra4x4_pred_mode)[8];
171 void (*pred4x4 [9+3])(uint8_t *src, uint8_t *topright, int stride);//FIXME move to dsp?
172 void (*pred8x8 [4+3])(uint8_t *src, int stride);
173 void (*pred16x16[4+3])(uint8_t *src, int stride);
174 unsigned int topleft_samples_available;
175 unsigned int top_samples_available;
176 unsigned int topright_samples_available;
177 unsigned int left_samples_available;
178 uint8_t (*top_border)[16+2*8];
179 uint8_t left_border[17+2*9];
182 * non zero coeff count cache.
183 * is 64 if not available.
185 uint8_t non_zero_count_cache[6*8];
186 uint8_t (*non_zero_count)[16];
189 * Motion vector cache.
191 int16_t mv_cache[2][5*8][2];
192 int8_t ref_cache[2][5*8];
193 #define LIST_NOT_USED -1 //FIXME rename?
194 #define PART_NOT_AVAILABLE -2
197 * is 1 if the specific list MV&references are set to 0,0,-2.
199 int mv_cache_clean[2];
201 int block_offset[16+8];
202 int chroma_subblock_offset[16]; //FIXME remove
204 uint16_t *mb2b_xy; //FIXME are these 4 a good idea?
206 int b_stride; //FIXME use s->b4_stride
212 int unknown_svq3_flag;
213 int next_slice_index;
215 SPS sps_buffer[MAX_SPS_COUNT];
216 SPS sps; ///< current sps
218 PPS pps_buffer[MAX_PPS_COUNT];
222 PPS pps; //FIXME move tp Picture perhaps? (->no) do we need that?
225 uint8_t *slice_table_base;
226 uint8_t *slice_table; ///< slice_table_base + mb_stride + 1
228 int slice_type_fixed;
230 //interlacing specific flags
231 int mb_field_decoding_flag;
238 int delta_poc_bottom;
241 int prev_poc_msb; ///< poc_msb of the last reference pic for POC type 0
242 int prev_poc_lsb; ///< poc_lsb of the last reference pic for POC type 0
243 int frame_num_offset; ///< for POC type 2
244 int prev_frame_num_offset; ///< for POC type 2
245 int prev_frame_num; ///< frame_num of the last pic for POC type 1/2
248 * frame_num for frames or 2*frame_num for field pics.
253 * max_frame_num or 2*max_frame_num for field pics.
257 //Weighted pred stuff
259 int use_weight_chroma;
260 int luma_log2_weight_denom;
261 int chroma_log2_weight_denom;
262 int luma_weight[2][16];
263 int luma_offset[2][16];
264 int chroma_weight[2][16][2];
265 int chroma_offset[2][16][2];
266 int implicit_weight[16][16];
269 int deblocking_filter; ///< disable_deblocking_filter_idc with 1<->0
270 int slice_alpha_c0_offset;
271 int slice_beta_offset;
273 int redundant_pic_count;
275 int direct_spatial_mv_pred;
276 int dist_scale_factor[16];
279 * num_ref_idx_l0/1_active_minus1 + 1
281 int ref_count[2];// FIXME split for AFF
282 Picture *short_ref[16];
283 Picture *long_ref[16];
284 Picture default_ref_list[2][32];
285 Picture ref_list[2][32]; //FIXME size?
286 Picture field_ref_list[2][32]; //FIXME size?
287 Picture *delayed_pic[16]; //FIXME size?
290 * memory management control operations buffer.
292 MMCO mmco[MAX_MMCO_COUNT];
295 int long_ref_count; ///< number of actual long term references
296 int short_ref_count; ///< number of actual short term references
299 GetBitContext intra_gb;
300 GetBitContext inter_gb;
301 GetBitContext *intra_gb_ptr;
302 GetBitContext *inter_gb_ptr;
304 DCTELEM mb[16*24] __align8;
310 uint8_t cabac_state[399];
313 /* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0,1,2), 0x0? luma_cbp */
317 /* chroma_pred_mode for i4x4 or i16x16, else 0 */
318 uint8_t *chroma_pred_mode_table;
319 int last_qscale_diff;
320 int16_t (*mvd_table[2])[2];
321 int16_t mvd_cache[2][5*8][2];
322 uint8_t *direct_table;
323 uint8_t direct_cache[5*8];
327 static VLC coeff_token_vlc[4];
328 static VLC chroma_dc_coeff_token_vlc;
330 static VLC total_zeros_vlc[15];
331 static VLC chroma_dc_total_zeros_vlc[3];
333 static VLC run_vlc[6];
336 static void svq3_luma_dc_dequant_idct_c(DCTELEM *block, int qp);
337 static void svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int dc);
338 static void filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr);
340 static inline uint32_t pack16to32(int a, int b){
341 #ifdef WORDS_BIGENDIAN
342 return (b&0xFFFF) + (a<<16);
344 return (a&0xFFFF) + (b<<16);
350 * @param h height of the rectangle, should be a constant
351 * @param w width of the rectangle, should be a constant
352 * @param size the size of val (1 or 4), should be a constant
354 static inline void fill_rectangle(void *vp, int w, int h, int stride, uint32_t val, int size){ //FIXME ensure this IS inlined
355 uint8_t *p= (uint8_t*)vp;
356 assert(size==1 || size==4);
361 //FIXME check what gcc generates for 64 bit on x86 and possible write a 32 bit ver of it
364 *(uint16_t*)(p + stride)= size==4 ? val : val*0x0101;
365 }else if(w==2 && h==4){
366 *(uint16_t*)(p + 0*stride)=
367 *(uint16_t*)(p + 1*stride)=
368 *(uint16_t*)(p + 2*stride)=
369 *(uint16_t*)(p + 3*stride)= size==4 ? val : val*0x0101;
370 }else if(w==4 && h==1){
371 *(uint32_t*)(p + 0*stride)= size==4 ? val : val*0x01010101;
372 }else if(w==4 && h==2){
373 *(uint32_t*)(p + 0*stride)=
374 *(uint32_t*)(p + 1*stride)= size==4 ? val : val*0x01010101;
375 }else if(w==4 && h==4){
376 *(uint32_t*)(p + 0*stride)=
377 *(uint32_t*)(p + 1*stride)=
378 *(uint32_t*)(p + 2*stride)=
379 *(uint32_t*)(p + 3*stride)= size==4 ? val : val*0x01010101;
380 }else if(w==8 && h==1){
382 *(uint32_t*)(p + 4)= size==4 ? val : val*0x01010101;
383 }else if(w==8 && h==2){
384 *(uint32_t*)(p + 0 + 0*stride)=
385 *(uint32_t*)(p + 4 + 0*stride)=
386 *(uint32_t*)(p + 0 + 1*stride)=
387 *(uint32_t*)(p + 4 + 1*stride)= size==4 ? val : val*0x01010101;
388 }else if(w==8 && h==4){
389 *(uint64_t*)(p + 0*stride)=
390 *(uint64_t*)(p + 1*stride)=
391 *(uint64_t*)(p + 2*stride)=
392 *(uint64_t*)(p + 3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
393 }else if(w==16 && h==2){
394 *(uint64_t*)(p + 0+0*stride)=
395 *(uint64_t*)(p + 8+0*stride)=
396 *(uint64_t*)(p + 0+1*stride)=
397 *(uint64_t*)(p + 8+1*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
398 }else if(w==16 && h==4){
399 *(uint64_t*)(p + 0+0*stride)=
400 *(uint64_t*)(p + 8+0*stride)=
401 *(uint64_t*)(p + 0+1*stride)=
402 *(uint64_t*)(p + 8+1*stride)=
403 *(uint64_t*)(p + 0+2*stride)=
404 *(uint64_t*)(p + 8+2*stride)=
405 *(uint64_t*)(p + 0+3*stride)=
406 *(uint64_t*)(p + 8+3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
411 static inline void fill_caches(H264Context *h, int mb_type, int for_deblock){
412 MpegEncContext * const s = &h->s;
413 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
414 int topleft_xy, top_xy, topright_xy, left_xy[2];
415 int topleft_type, top_type, topright_type, left_type[2];
419 //wow what a mess, why didnt they simplify the interlacing&intra stuff, i cant imagine that these complex rules are worth it
423 topleft_xy = 0; /* avoid warning */
424 top_xy = 0; /* avoid warning */
425 topright_xy = 0; /* avoid warning */
427 topleft_xy = mb_xy-1 - s->mb_stride;
428 top_xy = mb_xy - s->mb_stride;
429 topright_xy= mb_xy+1 - s->mb_stride;
430 left_xy[0] = mb_xy-1;
431 left_xy[1] = mb_xy-1;
439 topleft_type = h->slice_table[topleft_xy ] < 255 ? s->current_picture.mb_type[topleft_xy] : 0;
440 top_type = h->slice_table[top_xy ] < 255 ? s->current_picture.mb_type[top_xy] : 0;
441 topright_type= h->slice_table[topright_xy] < 255 ? s->current_picture.mb_type[topright_xy]: 0;
442 left_type[0] = h->slice_table[left_xy[0] ] < 255 ? s->current_picture.mb_type[left_xy[0]] : 0;
443 left_type[1] = h->slice_table[left_xy[1] ] < 255 ? s->current_picture.mb_type[left_xy[1]] : 0;
445 topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
446 top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
447 topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
448 left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
449 left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
452 if(IS_INTRA(mb_type)){
453 h->topleft_samples_available=
454 h->top_samples_available=
455 h->left_samples_available= 0xFFFF;
456 h->topright_samples_available= 0xEEEA;
458 if(!IS_INTRA(top_type) && (top_type==0 || h->pps.constrained_intra_pred)){
459 h->topleft_samples_available= 0xB3FF;
460 h->top_samples_available= 0x33FF;
461 h->topright_samples_available= 0x26EA;
464 if(!IS_INTRA(left_type[i]) && (left_type[i]==0 || h->pps.constrained_intra_pred)){
465 h->topleft_samples_available&= 0xDF5F;
466 h->left_samples_available&= 0x5F5F;
470 if(!IS_INTRA(topleft_type) && (topleft_type==0 || h->pps.constrained_intra_pred))
471 h->topleft_samples_available&= 0x7FFF;
473 if(!IS_INTRA(topright_type) && (topright_type==0 || h->pps.constrained_intra_pred))
474 h->topright_samples_available&= 0xFBFF;
476 if(IS_INTRA4x4(mb_type)){
477 if(IS_INTRA4x4(top_type)){
478 h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4];
479 h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5];
480 h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6];
481 h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];
484 if(IS_INTRA16x16(top_type) || (IS_INTER(top_type) && !h->pps.constrained_intra_pred))
489 h->intra4x4_pred_mode_cache[4+8*0]=
490 h->intra4x4_pred_mode_cache[5+8*0]=
491 h->intra4x4_pred_mode_cache[6+8*0]=
492 h->intra4x4_pred_mode_cache[7+8*0]= pred;
495 if(IS_INTRA4x4(left_type[i])){
496 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]];
497 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];
500 if(IS_INTRA16x16(left_type[i]) || (IS_INTER(left_type[i]) && !h->pps.constrained_intra_pred))
505 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
506 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;
521 //FIXME constraint_intra_pred & partitioning & nnz (lets hope this is just a typo in the spec)
523 h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][0];
524 h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][1];
525 h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][2];
526 h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3];
528 h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][7];
529 h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8];
531 h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][10];
532 h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11];
534 h->top_cbp= h->cbp_table[top_xy];
536 h->non_zero_count_cache[4+8*0]=
537 h->non_zero_count_cache[5+8*0]=
538 h->non_zero_count_cache[6+8*0]=
539 h->non_zero_count_cache[7+8*0]=
541 h->non_zero_count_cache[1+8*0]=
542 h->non_zero_count_cache[2+8*0]=
544 h->non_zero_count_cache[1+8*3]=
545 h->non_zero_count_cache[2+8*3]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
547 if(IS_INTRA(mb_type)) h->top_cbp= 0x1C0;
552 h->non_zero_count_cache[3+8*1]= h->non_zero_count[left_xy[0]][6];
553 h->non_zero_count_cache[3+8*2]= h->non_zero_count[left_xy[0]][5];
554 h->non_zero_count_cache[0+8*1]= h->non_zero_count[left_xy[0]][9]; //FIXME left_block
555 h->non_zero_count_cache[0+8*4]= h->non_zero_count[left_xy[0]][12];
556 h->left_cbp= h->cbp_table[left_xy[0]]; //FIXME interlacing
558 h->non_zero_count_cache[3+8*1]=
559 h->non_zero_count_cache[3+8*2]=
560 h->non_zero_count_cache[0+8*1]=
561 h->non_zero_count_cache[0+8*4]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
563 if(IS_INTRA(mb_type)) h->left_cbp= 0x1C0;//FIXME interlacing
568 h->non_zero_count_cache[3+8*3]= h->non_zero_count[left_xy[1]][4];
569 h->non_zero_count_cache[3+8*4]= h->non_zero_count[left_xy[1]][3];
570 h->non_zero_count_cache[0+8*2]= h->non_zero_count[left_xy[1]][8];
571 h->non_zero_count_cache[0+8*5]= h->non_zero_count[left_xy[1]][11];
573 h->non_zero_count_cache[3+8*3]=
574 h->non_zero_count_cache[3+8*4]=
575 h->non_zero_count_cache[0+8*2]=
576 h->non_zero_count_cache[0+8*5]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
580 //FIXME direct mb can skip much of this
581 if(IS_INTER(mb_type) || (IS_DIRECT(mb_type) && h->direct_spatial_mv_pred)){
583 for(list=0; list<2; list++){
584 if((!IS_8X8(mb_type)) && !USES_LIST(mb_type, list) && !IS_DIRECT(mb_type)){
585 /*if(!h->mv_cache_clean[list]){
586 memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?
587 memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));
588 h->mv_cache_clean[list]= 1;
592 h->mv_cache_clean[list]= 0;
594 if(IS_INTER(topleft_type)){
595 const int b_xy = h->mb2b_xy[topleft_xy] + 3 + 3*h->b_stride;
596 const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + h->b8_stride;
597 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
598 h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];
600 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0;
601 h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
604 if(IS_INTER(top_type)){
605 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
606 const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;
607 *(uint32_t*)h->mv_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 0];
608 *(uint32_t*)h->mv_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 1];
609 *(uint32_t*)h->mv_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 2];
610 *(uint32_t*)h->mv_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 3];
611 h->ref_cache[list][scan8[0] + 0 - 1*8]=
612 h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0];
613 h->ref_cache[list][scan8[0] + 2 - 1*8]=
614 h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1];
616 *(uint32_t*)h->mv_cache [list][scan8[0] + 0 - 1*8]=
617 *(uint32_t*)h->mv_cache [list][scan8[0] + 1 - 1*8]=
618 *(uint32_t*)h->mv_cache [list][scan8[0] + 2 - 1*8]=
619 *(uint32_t*)h->mv_cache [list][scan8[0] + 3 - 1*8]= 0;
620 *(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101;
623 if(IS_INTER(topright_type)){
624 const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;
625 const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride;
626 *(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
627 h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy];
629 *(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0;
630 h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
633 //FIXME unify cleanup or sth
634 if(IS_INTER(left_type[0])){
635 const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
636 const int b8_xy= h->mb2b8_xy[left_xy[0]] + 1;
637 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0]];
638 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1]];
639 h->ref_cache[list][scan8[0] - 1 + 0*8]=
640 h->ref_cache[list][scan8[0] - 1 + 1*8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0]>>1)];
642 *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 0*8]=
643 *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 1*8]= 0;
644 h->ref_cache[list][scan8[0] - 1 + 0*8]=
645 h->ref_cache[list][scan8[0] - 1 + 1*8]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
648 if(IS_INTER(left_type[1])){
649 const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
650 const int b8_xy= h->mb2b8_xy[left_xy[1]] + 1;
651 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[2]];
652 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[3]];
653 h->ref_cache[list][scan8[0] - 1 + 2*8]=
654 h->ref_cache[list][scan8[0] - 1 + 3*8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[2]>>1)];
656 *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 2*8]=
657 *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 3*8]= 0;
658 h->ref_cache[list][scan8[0] - 1 + 2*8]=
659 h->ref_cache[list][scan8[0] - 1 + 3*8]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
665 h->ref_cache[list][scan8[5 ]+1] =
666 h->ref_cache[list][scan8[7 ]+1] =
667 h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewher else)
668 h->ref_cache[list][scan8[4 ]] =
669 h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
670 *(uint32_t*)h->mv_cache [list][scan8[5 ]+1]=
671 *(uint32_t*)h->mv_cache [list][scan8[7 ]+1]=
672 *(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewher else)
673 *(uint32_t*)h->mv_cache [list][scan8[4 ]]=
674 *(uint32_t*)h->mv_cache [list][scan8[12]]= 0;
677 /* XXX beurk, Load mvd */
678 if(IS_INTER(topleft_type)){
679 const int b_xy = h->mb2b_xy[topleft_xy] + 3 + 3*h->b_stride;
680 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy];
682 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 - 1*8]= 0;
685 if(IS_INTER(top_type)){
686 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
687 *(uint32_t*)h->mvd_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 0];
688 *(uint32_t*)h->mvd_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 1];
689 *(uint32_t*)h->mvd_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 2];
690 *(uint32_t*)h->mvd_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 3];
692 *(uint32_t*)h->mvd_cache [list][scan8[0] + 0 - 1*8]=
693 *(uint32_t*)h->mvd_cache [list][scan8[0] + 1 - 1*8]=
694 *(uint32_t*)h->mvd_cache [list][scan8[0] + 2 - 1*8]=
695 *(uint32_t*)h->mvd_cache [list][scan8[0] + 3 - 1*8]= 0;
697 if(IS_INTER(left_type[0])){
698 const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
699 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[0]];
700 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[1]];
702 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 0*8]=
703 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 1*8]= 0;
705 if(IS_INTER(left_type[1])){
706 const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
707 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[2]];
708 *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[3]];
710 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 2*8]=
711 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 3*8]= 0;
713 *(uint32_t*)h->mvd_cache [list][scan8[5 ]+1]=
714 *(uint32_t*)h->mvd_cache [list][scan8[7 ]+1]=
715 *(uint32_t*)h->mvd_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewher else)
716 *(uint32_t*)h->mvd_cache [list][scan8[4 ]]=
717 *(uint32_t*)h->mvd_cache [list][scan8[12]]= 0;
719 if(h->slice_type == B_TYPE){
720 fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, 0, 1);
722 if(IS_DIRECT(top_type)){
723 *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0x01010101;
724 }else if(IS_8X8(top_type)){
725 int b8_xy = h->mb2b8_xy[top_xy] + h->b8_stride;
726 h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy];
727 h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 1];
729 *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0;
733 if(IS_DIRECT(left_type[0])){
734 h->direct_cache[scan8[0] - 1 + 0*8]=
735 h->direct_cache[scan8[0] - 1 + 2*8]= 1;
736 }else if(IS_8X8(left_type[0])){
737 int b8_xy = h->mb2b8_xy[left_xy[0]] + 1;
738 h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[b8_xy];
739 h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[b8_xy + h->b8_stride];
741 h->direct_cache[scan8[0] - 1 + 0*8]=
742 h->direct_cache[scan8[0] - 1 + 2*8]= 0;
751 static inline void write_back_intra_pred_mode(H264Context *h){
752 MpegEncContext * const s = &h->s;
753 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
755 h->intra4x4_pred_mode[mb_xy][0]= h->intra4x4_pred_mode_cache[7+8*1];
756 h->intra4x4_pred_mode[mb_xy][1]= h->intra4x4_pred_mode_cache[7+8*2];
757 h->intra4x4_pred_mode[mb_xy][2]= h->intra4x4_pred_mode_cache[7+8*3];
758 h->intra4x4_pred_mode[mb_xy][3]= h->intra4x4_pred_mode_cache[7+8*4];
759 h->intra4x4_pred_mode[mb_xy][4]= h->intra4x4_pred_mode_cache[4+8*4];
760 h->intra4x4_pred_mode[mb_xy][5]= h->intra4x4_pred_mode_cache[5+8*4];
761 h->intra4x4_pred_mode[mb_xy][6]= h->intra4x4_pred_mode_cache[6+8*4];
765 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
767 static inline int check_intra4x4_pred_mode(H264Context *h){
768 MpegEncContext * const s = &h->s;
769 static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0};
770 static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED};
773 if(!(h->top_samples_available&0x8000)){
775 int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ];
777 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);
780 h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
785 if(!(h->left_samples_available&0x8000)){
787 int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ];
789 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);
792 h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status;
798 } //FIXME cleanup like next
801 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
803 static inline int check_intra_pred_mode(H264Context *h, int mode){
804 MpegEncContext * const s = &h->s;
805 static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
806 static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
808 if(mode < 0 || mode > 6) {
809 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);
813 if(!(h->top_samples_available&0x8000)){
816 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);
821 if(!(h->left_samples_available&0x8000)){
824 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);
833 * gets the predicted intra4x4 prediction mode.
835 static inline int pred_intra_mode(H264Context *h, int n){
836 const int index8= scan8[n];
837 const int left= h->intra4x4_pred_mode_cache[index8 - 1];
838 const int top = h->intra4x4_pred_mode_cache[index8 - 8];
839 const int min= FFMIN(left, top);
841 tprintf("mode:%d %d min:%d\n", left ,top, min);
843 if(min<0) return DC_PRED;
847 static inline void write_back_non_zero_count(H264Context *h){
848 MpegEncContext * const s = &h->s;
849 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
851 h->non_zero_count[mb_xy][0]= h->non_zero_count_cache[4+8*4];
852 h->non_zero_count[mb_xy][1]= h->non_zero_count_cache[5+8*4];
853 h->non_zero_count[mb_xy][2]= h->non_zero_count_cache[6+8*4];
854 h->non_zero_count[mb_xy][3]= h->non_zero_count_cache[7+8*4];
855 h->non_zero_count[mb_xy][4]= h->non_zero_count_cache[7+8*3];
856 h->non_zero_count[mb_xy][5]= h->non_zero_count_cache[7+8*2];
857 h->non_zero_count[mb_xy][6]= h->non_zero_count_cache[7+8*1];
859 h->non_zero_count[mb_xy][7]= h->non_zero_count_cache[1+8*2];
860 h->non_zero_count[mb_xy][8]= h->non_zero_count_cache[2+8*2];
861 h->non_zero_count[mb_xy][9]= h->non_zero_count_cache[2+8*1];
863 h->non_zero_count[mb_xy][10]=h->non_zero_count_cache[1+8*5];
864 h->non_zero_count[mb_xy][11]=h->non_zero_count_cache[2+8*5];
865 h->non_zero_count[mb_xy][12]=h->non_zero_count_cache[2+8*4];
869 * gets the predicted number of non zero coefficients.
870 * @param n block index
872 static inline int pred_non_zero_count(H264Context *h, int n){
873 const int index8= scan8[n];
874 const int left= h->non_zero_count_cache[index8 - 1];
875 const int top = h->non_zero_count_cache[index8 - 8];
878 if(i<64) i= (i+1)>>1;
880 tprintf("pred_nnz L%X T%X n%d s%d P%X\n", left, top, n, scan8[n], i&31);
885 static inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, int list, int part_width){
886 const int topright_ref= h->ref_cache[list][ i - 8 + part_width ];
888 if(topright_ref != PART_NOT_AVAILABLE){
889 *C= h->mv_cache[list][ i - 8 + part_width ];
892 tprintf("topright MV not available\n");
894 *C= h->mv_cache[list][ i - 8 - 1 ];
895 return h->ref_cache[list][ i - 8 - 1 ];
900 * gets the predicted MV.
901 * @param n the block index
902 * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4)
903 * @param mx the x component of the predicted motion vector
904 * @param my the y component of the predicted motion vector
906 static inline void pred_motion(H264Context * const h, int n, int part_width, int list, int ref, int * const mx, int * const my){
907 const int index8= scan8[n];
908 const int top_ref= h->ref_cache[list][ index8 - 8 ];
909 const int left_ref= h->ref_cache[list][ index8 - 1 ];
910 const int16_t * const A= h->mv_cache[list][ index8 - 1 ];
911 const int16_t * const B= h->mv_cache[list][ index8 - 8 ];
913 int diagonal_ref, match_count;
915 assert(part_width==1 || part_width==2 || part_width==4);
925 diagonal_ref= fetch_diagonal_mv(h, &C, index8, list, part_width);
926 match_count= (diagonal_ref==ref) + (top_ref==ref) + (left_ref==ref);
927 tprintf("pred_motion match_count=%d\n", match_count);
928 if(match_count > 1){ //most common
929 *mx= mid_pred(A[0], B[0], C[0]);
930 *my= mid_pred(A[1], B[1], C[1]);
931 }else if(match_count==1){
935 }else if(top_ref==ref){
943 if(top_ref == PART_NOT_AVAILABLE && diagonal_ref == PART_NOT_AVAILABLE && left_ref != PART_NOT_AVAILABLE){
947 *mx= mid_pred(A[0], B[0], C[0]);
948 *my= mid_pred(A[1], B[1], C[1]);
952 tprintf("pred_motion (%2d %2d %2d) (%2d %2d %2d) (%2d %2d %2d) -> (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1], diagonal_ref, C[0], C[1], left_ref, A[0], A[1], ref, *mx, *my, h->s.mb_x, h->s.mb_y, n, list);
956 * gets the directionally predicted 16x8 MV.
957 * @param n the block index
958 * @param mx the x component of the predicted motion vector
959 * @param my the y component of the predicted motion vector
961 static inline void pred_16x8_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
963 const int top_ref= h->ref_cache[list][ scan8[0] - 8 ];
964 const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ];
966 tprintf("pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1], h->s.mb_x, h->s.mb_y, n, list);
974 const int left_ref= h->ref_cache[list][ scan8[8] - 1 ];
975 const int16_t * const A= h->mv_cache[list][ scan8[8] - 1 ];
977 tprintf("pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list);
987 pred_motion(h, n, 4, list, ref, mx, my);
991 * gets the directionally predicted 8x16 MV.
992 * @param n the block index
993 * @param mx the x component of the predicted motion vector
994 * @param my the y component of the predicted motion vector
996 static inline void pred_8x16_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
998 const int left_ref= h->ref_cache[list][ scan8[0] - 1 ];
999 const int16_t * const A= h->mv_cache[list][ scan8[0] - 1 ];
1001 tprintf("pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list);
1003 if(left_ref == ref){
1012 diagonal_ref= fetch_diagonal_mv(h, &C, scan8[4], list, 2);
1014 tprintf("pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", diagonal_ref, C[0], C[1], h->s.mb_x, h->s.mb_y, n, list);
1016 if(diagonal_ref == ref){
1024 pred_motion(h, n, 2, list, ref, mx, my);
1027 static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my){
1028 const int top_ref = h->ref_cache[0][ scan8[0] - 8 ];
1029 const int left_ref= h->ref_cache[0][ scan8[0] - 1 ];
1031 tprintf("pred_pskip: (%d) (%d) at %2d %2d\n", top_ref, left_ref, h->s.mb_x, h->s.mb_y);
1033 if(top_ref == PART_NOT_AVAILABLE || left_ref == PART_NOT_AVAILABLE
1034 || (top_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 8 ] == 0)
1035 || (left_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 1 ] == 0)){
1041 pred_motion(h, 0, 4, 0, 0, mx, my);
1046 static inline void direct_dist_scale_factor(H264Context * const h){
1047 const int poc = h->s.current_picture_ptr->poc;
1048 const int poc1 = h->ref_list[1][0].poc;
1050 for(i=0; i<h->ref_count[0]; i++){
1051 int poc0 = h->ref_list[0][i].poc;
1052 int td = clip(poc1 - poc0, -128, 127);
1053 if(td == 0 /* FIXME || pic0 is a long-term ref */){
1054 h->dist_scale_factor[i] = 256;
1056 int tb = clip(poc - poc0, -128, 127);
1057 int tx = (16384 + (ABS(td) >> 1)) / td;
1058 h->dist_scale_factor[i] = clip((tb*tx + 32) >> 6, -1024, 1023);
1063 static inline void pred_direct_motion(H264Context * const h, int *mb_type){
1064 MpegEncContext * const s = &h->s;
1065 const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
1066 const int b8_xy = 2*s->mb_x + 2*s->mb_y*h->b8_stride;
1067 const int b4_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
1068 const int mb_type_col = h->ref_list[1][0].mb_type[mb_xy];
1069 const int16_t (*l1mv0)[2] = (const int16_t (*)[2]) &h->ref_list[1][0].motion_val[0][b4_xy];
1070 const int8_t *l1ref0 = &h->ref_list[1][0].ref_index[0][b8_xy];
1071 const int is_b8x8 = IS_8X8(*mb_type);
1075 if(IS_8X8(mb_type_col) && !h->sps.direct_8x8_inference_flag){
1076 /* FIXME save sub mb types from previous frames (or derive from MVs)
1077 * so we know exactly what block size to use */
1078 sub_mb_type = MB_TYPE_8x8|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_4x4 */
1079 *mb_type = MB_TYPE_8x8;
1080 }else if(!is_b8x8 && (IS_16X16(mb_type_col) || IS_INTRA(mb_type_col))){
1081 sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
1082 *mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_16x16 */
1084 sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
1085 *mb_type = MB_TYPE_8x8;
1088 *mb_type |= MB_TYPE_DIRECT2;
1090 tprintf("mb_type = %08x, sub_mb_type = %08x, is_b8x8 = %d, mb_type_col = %08x\n", *mb_type, sub_mb_type, is_b8x8, mb_type_col);
1092 if(h->direct_spatial_mv_pred){
1097 /* ref = min(neighbors) */
1098 for(list=0; list<2; list++){
1099 int refa = h->ref_cache[list][scan8[0] - 1];
1100 int refb = h->ref_cache[list][scan8[0] - 8];
1101 int refc = h->ref_cache[list][scan8[0] - 8 + 4];
1103 refc = h->ref_cache[list][scan8[0] - 8 - 1];
1105 if(ref[list] < 0 || (refb < ref[list] && refb >= 0))
1107 if(ref[list] < 0 || (refc < ref[list] && refc >= 0))
1113 if(ref[0] < 0 && ref[1] < 0){
1114 ref[0] = ref[1] = 0;
1115 mv[0][0] = mv[0][1] =
1116 mv[1][0] = mv[1][1] = 0;
1118 for(list=0; list<2; list++){
1120 pred_motion(h, 0, 4, list, ref[list], &mv[list][0], &mv[list][1]);
1122 mv[list][0] = mv[list][1] = 0;
1127 *mb_type &= ~MB_TYPE_P0L1;
1128 sub_mb_type &= ~MB_TYPE_P0L1;
1129 }else if(ref[0] < 0){
1130 *mb_type &= ~MB_TYPE_P0L0;
1131 sub_mb_type &= ~MB_TYPE_P0L0;
1134 if(IS_16X16(*mb_type)){
1135 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref[0], 1);
1136 fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, ref[1], 1);
1137 if(!IS_INTRA(mb_type_col) && l1ref0[0] == 0 &&
1138 ABS(l1mv0[0][0]) <= 1 && ABS(l1mv0[0][1]) <= 1){
1140 fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mv[0][0],mv[0][1]), 4);
1142 fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, 0, 4);
1144 fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, pack16to32(mv[1][0],mv[1][1]), 4);
1146 fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, 0, 4);
1148 fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mv[0][0],mv[0][1]), 4);
1149 fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, pack16to32(mv[1][0],mv[1][1]), 4);
1152 for(i8=0; i8<4; i8++){
1153 const int x8 = i8&1;
1154 const int y8 = i8>>1;
1156 if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
1158 h->sub_mb_type[i8] = sub_mb_type;
1160 fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mv[0][0],mv[0][1]), 4);
1161 fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mv[1][0],mv[1][1]), 4);
1162 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref[0], 1);
1163 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, ref[1], 1);
1166 if(!IS_INTRA(mb_type_col) && l1ref0[x8 + y8*h->b8_stride] == 0){
1167 for(i4=0; i4<4; i4++){
1168 const int16_t *mv_col = l1mv0[x8*2 + (i4&1) + (y8*2 + (i4>>1))*h->b_stride];
1169 if(ABS(mv_col[0]) <= 1 && ABS(mv_col[1]) <= 1){
1171 *(uint32_t*)h->mv_cache[0][scan8[i8*4+i4]] = 0;
1173 *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] = 0;
1179 }else{ /* direct temporal mv pred */
1180 /* FIXME assumes that L1ref0 used the same ref lists as current frame */
1181 if(IS_16X16(*mb_type)){
1182 fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, 0, 1);
1183 if(IS_INTRA(mb_type_col)){
1184 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
1185 fill_rectangle(&h-> mv_cache[0][scan8[0]], 4, 4, 8, 0, 4);
1186 fill_rectangle(&h-> mv_cache[1][scan8[0]], 4, 4, 8, 0, 4);
1188 const int ref0 = l1ref0[0];
1189 const int dist_scale_factor = h->dist_scale_factor[ref0];
1190 const int16_t *mv_col = l1mv0[0];
1192 mv_l0[0] = (dist_scale_factor * mv_col[0] + 128) >> 8;
1193 mv_l0[1] = (dist_scale_factor * mv_col[1] + 128) >> 8;
1194 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref0, 1);
1195 fill_rectangle(&h-> mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mv_l0[0],mv_l0[1]), 4);
1196 fill_rectangle(&h-> mv_cache[1][scan8[0]], 4, 4, 8, pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]), 4);
1199 for(i8=0; i8<4; i8++){
1200 const int x8 = i8&1;
1201 const int y8 = i8>>1;
1202 int ref0, dist_scale_factor;
1204 if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
1206 h->sub_mb_type[i8] = sub_mb_type;
1207 if(IS_INTRA(mb_type_col)){
1208 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
1209 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
1210 fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
1211 fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
1215 ref0 = l1ref0[x8 + y8*h->b8_stride];
1216 dist_scale_factor = h->dist_scale_factor[ref0];
1218 fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
1219 fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
1220 for(i4=0; i4<4; i4++){
1221 const int16_t *mv_col = l1mv0[x8*2 + (i4&1) + (y8*2 + (i4>>1))*h->b_stride];
1222 int16_t *mv_l0 = h->mv_cache[0][scan8[i8*4+i4]];
1223 mv_l0[0] = (dist_scale_factor * mv_col[0] + 128) >> 8;
1224 mv_l0[1] = (dist_scale_factor * mv_col[1] + 128) >> 8;
1225 *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] =
1226 pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);
1233 static inline void write_back_motion(H264Context *h, int mb_type){
1234 MpegEncContext * const s = &h->s;
1235 const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
1236 const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride;
1239 for(list=0; list<2; list++){
1241 if((!IS_8X8(mb_type)) && !USES_LIST(mb_type, list)){
1242 if(1){ //FIXME skip or never read if mb_type doesnt use it
1244 *(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]=
1245 *(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= 0;
1247 if( h->pps.cabac ) {
1248 /* FIXME needed ? */
1250 *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]=
1251 *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= 0;
1255 *(uint16_t*)&s->current_picture.ref_index[list][b8_xy + y*h->b8_stride]= (LIST_NOT_USED&0xFF)*0x0101;
1262 *(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+0 + 8*y];
1263 *(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+2 + 8*y];
1265 if( h->pps.cabac ) {
1267 *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+0 + 8*y];
1268 *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+2 + 8*y];
1272 s->current_picture.ref_index[list][b8_xy + 0 + y*h->b8_stride]= h->ref_cache[list][scan8[0]+0 + 16*y];
1273 s->current_picture.ref_index[list][b8_xy + 1 + y*h->b8_stride]= h->ref_cache[list][scan8[0]+2 + 16*y];
1277 if(h->slice_type == B_TYPE && h->pps.cabac){
1278 if(IS_8X8(mb_type)){
1279 h->direct_table[b8_xy+1+0*h->b8_stride] = IS_DIRECT(h->sub_mb_type[1]) ? 1 : 0;
1280 h->direct_table[b8_xy+0+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[2]) ? 1 : 0;
1281 h->direct_table[b8_xy+1+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[3]) ? 1 : 0;
1287 * Decodes a network abstraction layer unit.
1288 * @param consumed is the number of bytes used as input
1289 * @param length is the length of the array
1290 * @param dst_length is the number of decoded bytes FIXME here or a decode rbsp ttailing?
1291 * @returns decoded bytes, might be src+1 if no escapes
1293 static uint8_t *decode_nal(H264Context *h, uint8_t *src, int *dst_length, int *consumed, int length){
1297 // src[0]&0x80; //forbidden bit
1298 h->nal_ref_idc= src[0]>>5;
1299 h->nal_unit_type= src[0]&0x1F;
1303 for(i=0; i<length; i++)
1304 printf("%2X ", src[i]);
1306 for(i=0; i+1<length; i+=2){
1307 if(src[i]) continue;
1308 if(i>0 && src[i-1]==0) i--;
1309 if(i+2<length && src[i+1]==0 && src[i+2]<=3){
1311 /* startcode, so we must be past the end */
1318 if(i>=length-1){ //no escaped 0
1319 *dst_length= length;
1320 *consumed= length+1; //+1 for the header
1324 h->rbsp_buffer= av_fast_realloc(h->rbsp_buffer, &h->rbsp_buffer_size, length);
1325 dst= h->rbsp_buffer;
1327 //printf("deoding esc\n");
1330 //remove escapes (very rare 1:2^22)
1331 if(si+2<length && src[si]==0 && src[si+1]==0 && src[si+2]<=3){
1332 if(src[si+2]==3){ //escape
1337 }else //next start code
1341 dst[di++]= src[si++];
1345 *consumed= si + 1;//+1 for the header
1346 //FIXME store exact number of bits in the getbitcontext (its needed for decoding)
1352 * @param src the data which should be escaped
1353 * @param dst the target buffer, dst+1 == src is allowed as a special case
1354 * @param length the length of the src data
1355 * @param dst_length the length of the dst array
1356 * @returns length of escaped data in bytes or -1 if an error occured
1358 static int encode_nal(H264Context *h, uint8_t *dst, uint8_t *src, int length, int dst_length){
1359 int i, escape_count, si, di;
1363 assert(dst_length>0);
1365 dst[0]= (h->nal_ref_idc<<5) + h->nal_unit_type;
1367 if(length==0) return 1;
1370 for(i=0; i<length; i+=2){
1371 if(src[i]) continue;
1372 if(i>0 && src[i-1]==0)
1374 if(i+2<length && src[i+1]==0 && src[i+2]<=3){
1380 if(escape_count==0){
1382 memcpy(dst+1, src, length);
1386 if(length + escape_count + 1> dst_length)
1389 //this should be damn rare (hopefully)
1391 h->rbsp_buffer= av_fast_realloc(h->rbsp_buffer, &h->rbsp_buffer_size, length + escape_count);
1392 temp= h->rbsp_buffer;
1393 //printf("encoding esc\n");
1398 if(si+2<length && src[si]==0 && src[si+1]==0 && src[si+2]<=3){
1399 temp[di++]= 0; si++;
1400 temp[di++]= 0; si++;
1402 temp[di++]= src[si++];
1405 temp[di++]= src[si++];
1407 memcpy(dst+1, temp, length+escape_count);
1409 assert(di == length+escape_count);
1415 * write 1,10,100,1000,... for alignment, yes its exactly inverse to mpeg4
1417 static void encode_rbsp_trailing(PutBitContext *pb){
1420 length= (-put_bits_count(pb))&7;
1421 if(length) put_bits(pb, length, 0);
1426 * identifies the exact end of the bitstream
1427 * @return the length of the trailing, or 0 if damaged
1429 static int decode_rbsp_trailing(uint8_t *src){
1433 tprintf("rbsp trailing %X\n", v);
1443 * idct tranforms the 16 dc values and dequantize them.
1444 * @param qp quantization parameter
1446 static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp){
1447 const int qmul= dequant_coeff[qp][0];
1450 int temp[16]; //FIXME check if this is a good idea
1451 static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
1452 static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
1454 //memset(block, 64, 2*256);
1457 const int offset= y_offset[i];
1458 const int z0= block[offset+stride*0] + block[offset+stride*4];
1459 const int z1= block[offset+stride*0] - block[offset+stride*4];
1460 const int z2= block[offset+stride*1] - block[offset+stride*5];
1461 const int z3= block[offset+stride*1] + block[offset+stride*5];
1470 const int offset= x_offset[i];
1471 const int z0= temp[4*0+i] + temp[4*2+i];
1472 const int z1= temp[4*0+i] - temp[4*2+i];
1473 const int z2= temp[4*1+i] - temp[4*3+i];
1474 const int z3= temp[4*1+i] + temp[4*3+i];
1476 block[stride*0 +offset]= ((z0 + z3)*qmul + 2)>>2; //FIXME think about merging this into decode_resdual
1477 block[stride*2 +offset]= ((z1 + z2)*qmul + 2)>>2;
1478 block[stride*8 +offset]= ((z1 - z2)*qmul + 2)>>2;
1479 block[stride*10+offset]= ((z0 - z3)*qmul + 2)>>2;
1485 * dct tranforms the 16 dc values.
1486 * @param qp quantization parameter ??? FIXME
1488 static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
1489 // const int qmul= dequant_coeff[qp][0];
1491 int temp[16]; //FIXME check if this is a good idea
1492 static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
1493 static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
1496 const int offset= y_offset[i];
1497 const int z0= block[offset+stride*0] + block[offset+stride*4];
1498 const int z1= block[offset+stride*0] - block[offset+stride*4];
1499 const int z2= block[offset+stride*1] - block[offset+stride*5];
1500 const int z3= block[offset+stride*1] + block[offset+stride*5];
1509 const int offset= x_offset[i];
1510 const int z0= temp[4*0+i] + temp[4*2+i];
1511 const int z1= temp[4*0+i] - temp[4*2+i];
1512 const int z2= temp[4*1+i] - temp[4*3+i];
1513 const int z3= temp[4*1+i] + temp[4*3+i];
1515 block[stride*0 +offset]= (z0 + z3)>>1;
1516 block[stride*2 +offset]= (z1 + z2)>>1;
1517 block[stride*8 +offset]= (z1 - z2)>>1;
1518 block[stride*10+offset]= (z0 - z3)>>1;
1526 static void chroma_dc_dequant_idct_c(DCTELEM *block, int qp){
1527 const int qmul= dequant_coeff[qp][0];
1528 const int stride= 16*2;
1529 const int xStride= 16;
1532 a= block[stride*0 + xStride*0];
1533 b= block[stride*0 + xStride*1];
1534 c= block[stride*1 + xStride*0];
1535 d= block[stride*1 + xStride*1];
1542 block[stride*0 + xStride*0]= ((a+c)*qmul + 0)>>1;
1543 block[stride*0 + xStride*1]= ((e+b)*qmul + 0)>>1;
1544 block[stride*1 + xStride*0]= ((a-c)*qmul + 0)>>1;
1545 block[stride*1 + xStride*1]= ((e-b)*qmul + 0)>>1;
1549 static void chroma_dc_dct_c(DCTELEM *block){
1550 const int stride= 16*2;
1551 const int xStride= 16;
1554 a= block[stride*0 + xStride*0];
1555 b= block[stride*0 + xStride*1];
1556 c= block[stride*1 + xStride*0];
1557 d= block[stride*1 + xStride*1];
1564 block[stride*0 + xStride*0]= (a+c);
1565 block[stride*0 + xStride*1]= (e+b);
1566 block[stride*1 + xStride*0]= (a-c);
1567 block[stride*1 + xStride*1]= (e-b);
1572 * gets the chroma qp.
1574 static inline int get_chroma_qp(H264Context *h, int qscale){
1576 return chroma_qp[clip(qscale + h->pps.chroma_qp_index_offset, 0, 51)];
1581 static void h264_diff_dct_c(DCTELEM *block, uint8_t *src1, uint8_t *src2, int stride){
1583 //FIXME try int temp instead of block
1586 const int d0= src1[0 + i*stride] - src2[0 + i*stride];
1587 const int d1= src1[1 + i*stride] - src2[1 + i*stride];
1588 const int d2= src1[2 + i*stride] - src2[2 + i*stride];
1589 const int d3= src1[3 + i*stride] - src2[3 + i*stride];
1590 const int z0= d0 + d3;
1591 const int z3= d0 - d3;
1592 const int z1= d1 + d2;
1593 const int z2= d1 - d2;
1595 block[0 + 4*i]= z0 + z1;
1596 block[1 + 4*i]= 2*z3 + z2;
1597 block[2 + 4*i]= z0 - z1;
1598 block[3 + 4*i]= z3 - 2*z2;
1602 const int z0= block[0*4 + i] + block[3*4 + i];
1603 const int z3= block[0*4 + i] - block[3*4 + i];
1604 const int z1= block[1*4 + i] + block[2*4 + i];
1605 const int z2= block[1*4 + i] - block[2*4 + i];
1607 block[0*4 + i]= z0 + z1;
1608 block[1*4 + i]= 2*z3 + z2;
1609 block[2*4 + i]= z0 - z1;
1610 block[3*4 + i]= z3 - 2*z2;
1615 //FIXME need to check that this doesnt overflow signed 32 bit for low qp, iam not sure, its very close
1616 //FIXME check that gcc inlines this (and optimizes intra & seperate_dc stuff away)
1617 static inline int quantize_c(DCTELEM *block, uint8_t *scantable, int qscale, int intra, int seperate_dc){
1619 const int * const quant_table= quant_coeff[qscale];
1620 const int bias= intra ? (1<<QUANT_SHIFT)/3 : (1<<QUANT_SHIFT)/6;
1621 const unsigned int threshold1= (1<<QUANT_SHIFT) - bias - 1;
1622 const unsigned int threshold2= (threshold1<<1);
1628 const int dc_bias= intra ? (1<<(QUANT_SHIFT-2))/3 : (1<<(QUANT_SHIFT-2))/6;
1629 const unsigned int dc_threshold1= (1<<(QUANT_SHIFT-2)) - dc_bias - 1;
1630 const unsigned int dc_threshold2= (dc_threshold1<<1);
1632 int level= block[0]*quant_coeff[qscale+18][0];
1633 if(((unsigned)(level+dc_threshold1))>dc_threshold2){
1635 level= (dc_bias + level)>>(QUANT_SHIFT-2);
1638 level= (dc_bias - level)>>(QUANT_SHIFT-2);
1641 // last_non_zero = i;
1646 const int dc_bias= intra ? (1<<(QUANT_SHIFT+1))/3 : (1<<(QUANT_SHIFT+1))/6;
1647 const unsigned int dc_threshold1= (1<<(QUANT_SHIFT+1)) - dc_bias - 1;
1648 const unsigned int dc_threshold2= (dc_threshold1<<1);
1650 int level= block[0]*quant_table[0];
1651 if(((unsigned)(level+dc_threshold1))>dc_threshold2){
1653 level= (dc_bias + level)>>(QUANT_SHIFT+1);
1656 level= (dc_bias - level)>>(QUANT_SHIFT+1);
1659 // last_non_zero = i;
1672 const int j= scantable[i];
1673 int level= block[j]*quant_table[j];
1675 // if( bias+level >= (1<<(QMAT_SHIFT - 3))
1676 // || bias-level >= (1<<(QMAT_SHIFT - 3))){
1677 if(((unsigned)(level+threshold1))>threshold2){
1679 level= (bias + level)>>QUANT_SHIFT;
1682 level= (bias - level)>>QUANT_SHIFT;
1691 return last_non_zero;
1694 static void pred4x4_vertical_c(uint8_t *src, uint8_t *topright, int stride){
1695 const uint32_t a= ((uint32_t*)(src-stride))[0];
1696 ((uint32_t*)(src+0*stride))[0]= a;
1697 ((uint32_t*)(src+1*stride))[0]= a;
1698 ((uint32_t*)(src+2*stride))[0]= a;
1699 ((uint32_t*)(src+3*stride))[0]= a;
1702 static void pred4x4_horizontal_c(uint8_t *src, uint8_t *topright, int stride){
1703 ((uint32_t*)(src+0*stride))[0]= src[-1+0*stride]*0x01010101;
1704 ((uint32_t*)(src+1*stride))[0]= src[-1+1*stride]*0x01010101;
1705 ((uint32_t*)(src+2*stride))[0]= src[-1+2*stride]*0x01010101;
1706 ((uint32_t*)(src+3*stride))[0]= src[-1+3*stride]*0x01010101;
1709 static void pred4x4_dc_c(uint8_t *src, uint8_t *topright, int stride){
1710 const int dc= ( src[-stride] + src[1-stride] + src[2-stride] + src[3-stride]
1711 + src[-1+0*stride] + src[-1+1*stride] + src[-1+2*stride] + src[-1+3*stride] + 4) >>3;
1713 ((uint32_t*)(src+0*stride))[0]=
1714 ((uint32_t*)(src+1*stride))[0]=
1715 ((uint32_t*)(src+2*stride))[0]=
1716 ((uint32_t*)(src+3*stride))[0]= dc* 0x01010101;
1719 static void pred4x4_left_dc_c(uint8_t *src, uint8_t *topright, int stride){
1720 const int dc= ( src[-1+0*stride] + src[-1+1*stride] + src[-1+2*stride] + src[-1+3*stride] + 2) >>2;
1722 ((uint32_t*)(src+0*stride))[0]=
1723 ((uint32_t*)(src+1*stride))[0]=
1724 ((uint32_t*)(src+2*stride))[0]=
1725 ((uint32_t*)(src+3*stride))[0]= dc* 0x01010101;
1728 static void pred4x4_top_dc_c(uint8_t *src, uint8_t *topright, int stride){
1729 const int dc= ( src[-stride] + src[1-stride] + src[2-stride] + src[3-stride] + 2) >>2;
1731 ((uint32_t*)(src+0*stride))[0]=
1732 ((uint32_t*)(src+1*stride))[0]=
1733 ((uint32_t*)(src+2*stride))[0]=
1734 ((uint32_t*)(src+3*stride))[0]= dc* 0x01010101;
1737 static void pred4x4_128_dc_c(uint8_t *src, uint8_t *topright, int stride){
1738 ((uint32_t*)(src+0*stride))[0]=
1739 ((uint32_t*)(src+1*stride))[0]=
1740 ((uint32_t*)(src+2*stride))[0]=
1741 ((uint32_t*)(src+3*stride))[0]= 128U*0x01010101U;
1745 #define LOAD_TOP_RIGHT_EDGE\
1746 const int t4= topright[0];\
1747 const int t5= topright[1];\
1748 const int t6= topright[2];\
1749 const int t7= topright[3];\
1751 #define LOAD_LEFT_EDGE\
1752 const int l0= src[-1+0*stride];\
1753 const int l1= src[-1+1*stride];\
1754 const int l2= src[-1+2*stride];\
1755 const int l3= src[-1+3*stride];\
1757 #define LOAD_TOP_EDGE\
1758 const int t0= src[ 0-1*stride];\
1759 const int t1= src[ 1-1*stride];\
1760 const int t2= src[ 2-1*stride];\
1761 const int t3= src[ 3-1*stride];\
1763 static void pred4x4_down_right_c(uint8_t *src, uint8_t *topright, int stride){
1764 const int lt= src[-1-1*stride];
1768 src[0+3*stride]=(l3 + 2*l2 + l1 + 2)>>2;
1770 src[1+3*stride]=(l2 + 2*l1 + l0 + 2)>>2;
1773 src[2+3*stride]=(l1 + 2*l0 + lt + 2)>>2;
1777 src[3+3*stride]=(l0 + 2*lt + t0 + 2)>>2;
1780 src[3+2*stride]=(lt + 2*t0 + t1 + 2)>>2;
1782 src[3+1*stride]=(t0 + 2*t1 + t2 + 2)>>2;
1783 src[3+0*stride]=(t1 + 2*t2 + t3 + 2)>>2;
1786 static void pred4x4_down_left_c(uint8_t *src, uint8_t *topright, int stride){
1791 src[0+0*stride]=(t0 + t2 + 2*t1 + 2)>>2;
1793 src[0+1*stride]=(t1 + t3 + 2*t2 + 2)>>2;
1796 src[0+2*stride]=(t2 + t4 + 2*t3 + 2)>>2;
1800 src[0+3*stride]=(t3 + t5 + 2*t4 + 2)>>2;
1803 src[1+3*stride]=(t4 + t6 + 2*t5 + 2)>>2;
1805 src[2+3*stride]=(t5 + t7 + 2*t6 + 2)>>2;
1806 src[3+3*stride]=(t6 + 3*t7 + 2)>>2;
1809 static void pred4x4_vertical_right_c(uint8_t *src, uint8_t *topright, int stride){
1810 const int lt= src[-1-1*stride];
1813 const __attribute__((unused)) int unu= l3;
1816 src[1+2*stride]=(lt + t0 + 1)>>1;
1818 src[2+2*stride]=(t0 + t1 + 1)>>1;
1820 src[3+2*stride]=(t1 + t2 + 1)>>1;
1821 src[3+0*stride]=(t2 + t3 + 1)>>1;
1823 src[1+3*stride]=(l0 + 2*lt + t0 + 2)>>2;
1825 src[2+3*stride]=(lt + 2*t0 + t1 + 2)>>2;
1827 src[3+3*stride]=(t0 + 2*t1 + t2 + 2)>>2;
1828 src[3+1*stride]=(t1 + 2*t2 + t3 + 2)>>2;
1829 src[0+2*stride]=(lt + 2*l0 + l1 + 2)>>2;
1830 src[0+3*stride]=(l0 + 2*l1 + l2 + 2)>>2;
1833 static void pred4x4_vertical_left_c(uint8_t *src, uint8_t *topright, int stride){
1836 const __attribute__((unused)) int unu= t7;
1838 src[0+0*stride]=(t0 + t1 + 1)>>1;
1840 src[0+2*stride]=(t1 + t2 + 1)>>1;
1842 src[1+2*stride]=(t2 + t3 + 1)>>1;
1844 src[2+2*stride]=(t3 + t4+ 1)>>1;
1845 src[3+2*stride]=(t4 + t5+ 1)>>1;
1846 src[0+1*stride]=(t0 + 2*t1 + t2 + 2)>>2;
1848 src[0+3*stride]=(t1 + 2*t2 + t3 + 2)>>2;
1850 src[1+3*stride]=(t2 + 2*t3 + t4 + 2)>>2;
1852 src[2+3*stride]=(t3 + 2*t4 + t5 + 2)>>2;
1853 src[3+3*stride]=(t4 + 2*t5 + t6 + 2)>>2;
1856 static void pred4x4_horizontal_up_c(uint8_t *src, uint8_t *topright, int stride){
1859 src[0+0*stride]=(l0 + l1 + 1)>>1;
1860 src[1+0*stride]=(l0 + 2*l1 + l2 + 2)>>2;
1862 src[0+1*stride]=(l1 + l2 + 1)>>1;
1864 src[1+1*stride]=(l1 + 2*l2 + l3 + 2)>>2;
1866 src[0+2*stride]=(l2 + l3 + 1)>>1;
1868 src[1+2*stride]=(l2 + 2*l3 + l3 + 2)>>2;
1877 static void pred4x4_horizontal_down_c(uint8_t *src, uint8_t *topright, int stride){
1878 const int lt= src[-1-1*stride];
1881 const __attribute__((unused)) int unu= t3;
1884 src[2+1*stride]=(lt + l0 + 1)>>1;
1886 src[3+1*stride]=(l0 + 2*lt + t0 + 2)>>2;
1887 src[2+0*stride]=(lt + 2*t0 + t1 + 2)>>2;
1888 src[3+0*stride]=(t0 + 2*t1 + t2 + 2)>>2;
1890 src[2+2*stride]=(l0 + l1 + 1)>>1;
1892 src[3+2*stride]=(lt + 2*l0 + l1 + 2)>>2;
1894 src[2+3*stride]=(l1 + l2+ 1)>>1;
1896 src[3+3*stride]=(l0 + 2*l1 + l2 + 2)>>2;
1897 src[0+3*stride]=(l2 + l3 + 1)>>1;
1898 src[1+3*stride]=(l1 + 2*l2 + l3 + 2)>>2;
1901 static void pred16x16_vertical_c(uint8_t *src, int stride){
1903 const uint32_t a= ((uint32_t*)(src-stride))[0];
1904 const uint32_t b= ((uint32_t*)(src-stride))[1];
1905 const uint32_t c= ((uint32_t*)(src-stride))[2];
1906 const uint32_t d= ((uint32_t*)(src-stride))[3];
1908 for(i=0; i<16; i++){
1909 ((uint32_t*)(src+i*stride))[0]= a;
1910 ((uint32_t*)(src+i*stride))[1]= b;
1911 ((uint32_t*)(src+i*stride))[2]= c;
1912 ((uint32_t*)(src+i*stride))[3]= d;
1916 static void pred16x16_horizontal_c(uint8_t *src, int stride){
1919 for(i=0; i<16; i++){
1920 ((uint32_t*)(src+i*stride))[0]=
1921 ((uint32_t*)(src+i*stride))[1]=
1922 ((uint32_t*)(src+i*stride))[2]=
1923 ((uint32_t*)(src+i*stride))[3]= src[-1+i*stride]*0x01010101;
1927 static void pred16x16_dc_c(uint8_t *src, int stride){
1931 dc+= src[-1+i*stride];
1938 dc= 0x01010101*((dc + 16)>>5);
1940 for(i=0; i<16; i++){
1941 ((uint32_t*)(src+i*stride))[0]=
1942 ((uint32_t*)(src+i*stride))[1]=
1943 ((uint32_t*)(src+i*stride))[2]=
1944 ((uint32_t*)(src+i*stride))[3]= dc;
1948 static void pred16x16_left_dc_c(uint8_t *src, int stride){
1952 dc+= src[-1+i*stride];
1955 dc= 0x01010101*((dc + 8)>>4);
1957 for(i=0; i<16; i++){
1958 ((uint32_t*)(src+i*stride))[0]=
1959 ((uint32_t*)(src+i*stride))[1]=
1960 ((uint32_t*)(src+i*stride))[2]=
1961 ((uint32_t*)(src+i*stride))[3]= dc;
1965 static void pred16x16_top_dc_c(uint8_t *src, int stride){
1971 dc= 0x01010101*((dc + 8)>>4);
1973 for(i=0; i<16; i++){
1974 ((uint32_t*)(src+i*stride))[0]=
1975 ((uint32_t*)(src+i*stride))[1]=
1976 ((uint32_t*)(src+i*stride))[2]=
1977 ((uint32_t*)(src+i*stride))[3]= dc;
1981 static void pred16x16_128_dc_c(uint8_t *src, int stride){
1984 for(i=0; i<16; i++){
1985 ((uint32_t*)(src+i*stride))[0]=
1986 ((uint32_t*)(src+i*stride))[1]=
1987 ((uint32_t*)(src+i*stride))[2]=
1988 ((uint32_t*)(src+i*stride))[3]= 0x01010101U*128U;
1992 static inline void pred16x16_plane_compat_c(uint8_t *src, int stride, const int svq3){
1995 uint8_t *cm = cropTbl + MAX_NEG_CROP;
1996 const uint8_t * const src0 = src+7-stride;
1997 const uint8_t *src1 = src+8*stride-1;
1998 const uint8_t *src2 = src1-2*stride; // == src+6*stride-1;
1999 int H = src0[1] - src0[-1];
2000 int V = src1[0] - src2[ 0];
2001 for(k=2; k<=8; ++k) {
2002 src1 += stride; src2 -= stride;
2003 H += k*(src0[k] - src0[-k]);
2004 V += k*(src1[0] - src2[ 0]);
2007 H = ( 5*(H/4) ) / 16;
2008 V = ( 5*(V/4) ) / 16;
2010 /* required for 100% accuracy */
2011 i = H; H = V; V = i;
2013 H = ( 5*H+32 ) >> 6;
2014 V = ( 5*V+32 ) >> 6;
2017 a = 16*(src1[0] + src2[16] + 1) - 7*(V+H);
2018 for(j=16; j>0; --j) {
2021 for(i=-16; i<0; i+=4) {
2022 src[16+i] = cm[ (b ) >> 5 ];
2023 src[17+i] = cm[ (b+ H) >> 5 ];
2024 src[18+i] = cm[ (b+2*H) >> 5 ];
2025 src[19+i] = cm[ (b+3*H) >> 5 ];
2032 static void pred16x16_plane_c(uint8_t *src, int stride){
2033 pred16x16_plane_compat_c(src, stride, 0);
2036 static void pred8x8_vertical_c(uint8_t *src, int stride){
2038 const uint32_t a= ((uint32_t*)(src-stride))[0];
2039 const uint32_t b= ((uint32_t*)(src-stride))[1];
2042 ((uint32_t*)(src+i*stride))[0]= a;
2043 ((uint32_t*)(src+i*stride))[1]= b;
2047 static void pred8x8_horizontal_c(uint8_t *src, int stride){
2051 ((uint32_t*)(src+i*stride))[0]=
2052 ((uint32_t*)(src+i*stride))[1]= src[-1+i*stride]*0x01010101;
2056 static void pred8x8_128_dc_c(uint8_t *src, int stride){
2060 ((uint32_t*)(src+i*stride))[0]=
2061 ((uint32_t*)(src+i*stride))[1]= 0x01010101U*128U;
2064 ((uint32_t*)(src+i*stride))[0]=
2065 ((uint32_t*)(src+i*stride))[1]= 0x01010101U*128U;
2069 static void pred8x8_left_dc_c(uint8_t *src, int stride){
2075 dc0+= src[-1+i*stride];
2076 dc2+= src[-1+(i+4)*stride];
2078 dc0= 0x01010101*((dc0 + 2)>>2);
2079 dc2= 0x01010101*((dc2 + 2)>>2);
2082 ((uint32_t*)(src+i*stride))[0]=
2083 ((uint32_t*)(src+i*stride))[1]= dc0;
2086 ((uint32_t*)(src+i*stride))[0]=
2087 ((uint32_t*)(src+i*stride))[1]= dc2;
2091 static void pred8x8_top_dc_c(uint8_t *src, int stride){
2097 dc0+= src[i-stride];
2098 dc1+= src[4+i-stride];
2100 dc0= 0x01010101*((dc0 + 2)>>2);
2101 dc1= 0x01010101*((dc1 + 2)>>2);
2104 ((uint32_t*)(src+i*stride))[0]= dc0;
2105 ((uint32_t*)(src+i*stride))[1]= dc1;
2108 ((uint32_t*)(src+i*stride))[0]= dc0;
2109 ((uint32_t*)(src+i*stride))[1]= dc1;
2114 static void pred8x8_dc_c(uint8_t *src, int stride){
2116 int dc0, dc1, dc2, dc3;
2120 dc0+= src[-1+i*stride] + src[i-stride];
2121 dc1+= src[4+i-stride];
2122 dc2+= src[-1+(i+4)*stride];
2124 dc3= 0x01010101*((dc1 + dc2 + 4)>>3);
2125 dc0= 0x01010101*((dc0 + 4)>>3);
2126 dc1= 0x01010101*((dc1 + 2)>>2);
2127 dc2= 0x01010101*((dc2 + 2)>>2);
2130 ((uint32_t*)(src+i*stride))[0]= dc0;
2131 ((uint32_t*)(src+i*stride))[1]= dc1;
2134 ((uint32_t*)(src+i*stride))[0]= dc2;
2135 ((uint32_t*)(src+i*stride))[1]= dc3;
2139 static void pred8x8_plane_c(uint8_t *src, int stride){
2142 uint8_t *cm = cropTbl + MAX_NEG_CROP;
2143 const uint8_t * const src0 = src+3-stride;
2144 const uint8_t *src1 = src+4*stride-1;
2145 const uint8_t *src2 = src1-2*stride; // == src+2*stride-1;
2146 int H = src0[1] - src0[-1];
2147 int V = src1[0] - src2[ 0];
2148 for(k=2; k<=4; ++k) {
2149 src1 += stride; src2 -= stride;
2150 H += k*(src0[k] - src0[-k]);
2151 V += k*(src1[0] - src2[ 0]);
2153 H = ( 17*H+16 ) >> 5;
2154 V = ( 17*V+16 ) >> 5;
2156 a = 16*(src1[0] + src2[8]+1) - 3*(V+H);
2157 for(j=8; j>0; --j) {
2160 src[0] = cm[ (b ) >> 5 ];
2161 src[1] = cm[ (b+ H) >> 5 ];
2162 src[2] = cm[ (b+2*H) >> 5 ];
2163 src[3] = cm[ (b+3*H) >> 5 ];
2164 src[4] = cm[ (b+4*H) >> 5 ];
2165 src[5] = cm[ (b+5*H) >> 5 ];
2166 src[6] = cm[ (b+6*H) >> 5 ];
2167 src[7] = cm[ (b+7*H) >> 5 ];
2172 static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list,
2173 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
2174 int src_x_offset, int src_y_offset,
2175 qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op){
2176 MpegEncContext * const s = &h->s;
2177 const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8;
2178 const int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8;
2179 const int luma_xy= (mx&3) + ((my&3)<<2);
2180 uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*s->linesize;
2181 uint8_t * src_cb= pic->data[1] + (mx>>3) + (my>>3)*s->uvlinesize;
2182 uint8_t * src_cr= pic->data[2] + (mx>>3) + (my>>3)*s->uvlinesize;
2183 int extra_width= (s->flags&CODEC_FLAG_EMU_EDGE) ? 0 : 16; //FIXME increase edge?, IMHO not worth it
2184 int extra_height= extra_width;
2186 const int full_mx= mx>>2;
2187 const int full_my= my>>2;
2189 assert(pic->data[0]);
2191 if(mx&7) extra_width -= 3;
2192 if(my&7) extra_height -= 3;
2194 if( full_mx < 0-extra_width
2195 || full_my < 0-extra_height
2196 || full_mx + 16/*FIXME*/ > s->width + extra_width
2197 || full_my + 16/*FIXME*/ > s->height + extra_height){
2198 ff_emulated_edge_mc(s->edge_emu_buffer, src_y - 2 - 2*s->linesize, s->linesize, 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, s->width, s->height);
2199 src_y= s->edge_emu_buffer + 2 + 2*s->linesize;
2203 qpix_op[luma_xy](dest_y, src_y, s->linesize); //FIXME try variable height perhaps?
2205 qpix_op[luma_xy](dest_y + delta, src_y + delta, s->linesize);
2208 if(s->flags&CODEC_FLAG_GRAY) return;
2211 ff_emulated_edge_mc(s->edge_emu_buffer, src_cb, s->uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), s->width>>1, s->height>>1);
2212 src_cb= s->edge_emu_buffer;
2214 chroma_op(dest_cb, src_cb, s->uvlinesize, chroma_height, mx&7, my&7);
2217 ff_emulated_edge_mc(s->edge_emu_buffer, src_cr, s->uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), s->width>>1, s->height>>1);
2218 src_cr= s->edge_emu_buffer;
2220 chroma_op(dest_cr, src_cr, s->uvlinesize, chroma_height, mx&7, my&7);
2223 static inline void mc_part_std(H264Context *h, int n, int square, int chroma_height, int delta,
2224 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
2225 int x_offset, int y_offset,
2226 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
2227 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
2228 int list0, int list1){
2229 MpegEncContext * const s = &h->s;
2230 qpel_mc_func *qpix_op= qpix_put;
2231 h264_chroma_mc_func chroma_op= chroma_put;
2233 dest_y += 2*x_offset + 2*y_offset*s-> linesize;
2234 dest_cb += x_offset + y_offset*s->uvlinesize;
2235 dest_cr += x_offset + y_offset*s->uvlinesize;
2236 x_offset += 8*s->mb_x;
2237 y_offset += 8*s->mb_y;
2240 Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ];
2241 mc_dir_part(h, ref, n, square, chroma_height, delta, 0,
2242 dest_y, dest_cb, dest_cr, x_offset, y_offset,
2243 qpix_op, chroma_op);
2246 chroma_op= chroma_avg;
2250 Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ];
2251 mc_dir_part(h, ref, n, square, chroma_height, delta, 1,
2252 dest_y, dest_cb, dest_cr, x_offset, y_offset,
2253 qpix_op, chroma_op);
2257 static inline void mc_part_weighted(H264Context *h, int n, int square, int chroma_height, int delta,
2258 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
2259 int x_offset, int y_offset,
2260 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
2261 h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op,
2262 h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg,
2263 int list0, int list1){
2264 MpegEncContext * const s = &h->s;
2266 dest_y += 2*x_offset + 2*y_offset*s-> linesize;
2267 dest_cb += x_offset + y_offset*s->uvlinesize;
2268 dest_cr += x_offset + y_offset*s->uvlinesize;
2269 x_offset += 8*s->mb_x;
2270 y_offset += 8*s->mb_y;
2273 /* don't optimize for luma-only case, since B-frames usually
2274 * use implicit weights => chroma too. */
2275 uint8_t *tmp_cb = s->obmc_scratchpad;
2276 uint8_t *tmp_cr = tmp_cb + 8*s->uvlinesize;
2277 uint8_t *tmp_y = tmp_cr + 8*s->uvlinesize;
2278 int refn0 = h->ref_cache[0][ scan8[n] ];
2279 int refn1 = h->ref_cache[1][ scan8[n] ];
2281 mc_dir_part(h, &h->ref_list[0][refn0], n, square, chroma_height, delta, 0,
2282 dest_y, dest_cb, dest_cr,
2283 x_offset, y_offset, qpix_put, chroma_put);
2284 mc_dir_part(h, &h->ref_list[1][refn1], n, square, chroma_height, delta, 1,
2285 tmp_y, tmp_cb, tmp_cr,
2286 x_offset, y_offset, qpix_put, chroma_put);
2288 if(h->use_weight == 2){
2289 int weight0 = h->implicit_weight[refn0][refn1];
2290 int weight1 = 64 - weight0;
2291 luma_weight_avg( dest_y, tmp_y, s-> linesize, 5, weight0, weight1, 0, 0);
2292 chroma_weight_avg(dest_cb, tmp_cb, s->uvlinesize, 5, weight0, weight1, 0, 0);
2293 chroma_weight_avg(dest_cr, tmp_cr, s->uvlinesize, 5, weight0, weight1, 0, 0);
2295 luma_weight_avg(dest_y, tmp_y, s->linesize, h->luma_log2_weight_denom,
2296 h->luma_weight[0][refn0], h->luma_weight[1][refn1],
2297 h->luma_offset[0][refn0], h->luma_offset[1][refn1]);
2298 chroma_weight_avg(dest_cb, tmp_cb, s->uvlinesize, h->chroma_log2_weight_denom,
2299 h->chroma_weight[0][refn0][0], h->chroma_weight[1][refn1][0],
2300 h->chroma_offset[0][refn0][0], h->chroma_offset[1][refn1][0]);
2301 chroma_weight_avg(dest_cr, tmp_cr, s->uvlinesize, h->chroma_log2_weight_denom,
2302 h->chroma_weight[0][refn0][1], h->chroma_weight[1][refn1][1],
2303 h->chroma_offset[0][refn0][1], h->chroma_offset[1][refn1][1]);
2306 int list = list1 ? 1 : 0;
2307 int refn = h->ref_cache[list][ scan8[n] ];
2308 Picture *ref= &h->ref_list[list][refn];
2309 mc_dir_part(h, ref, n, square, chroma_height, delta, list,
2310 dest_y, dest_cb, dest_cr, x_offset, y_offset,
2311 qpix_put, chroma_put);
2313 luma_weight_op(dest_y, s->linesize, h->luma_log2_weight_denom,
2314 h->luma_weight[list][refn], h->luma_offset[list][refn]);
2315 if(h->use_weight_chroma){
2316 chroma_weight_op(dest_cb, s->uvlinesize, h->chroma_log2_weight_denom,
2317 h->chroma_weight[list][refn][0], h->chroma_offset[list][refn][0]);
2318 chroma_weight_op(dest_cr, s->uvlinesize, h->chroma_log2_weight_denom,
2319 h->chroma_weight[list][refn][1], h->chroma_offset[list][refn][1]);
2324 static inline void mc_part(H264Context *h, int n, int square, int chroma_height, int delta,
2325 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
2326 int x_offset, int y_offset,
2327 qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
2328 qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
2329 h264_weight_func *weight_op, h264_biweight_func *weight_avg,
2330 int list0, int list1){
2331 if((h->use_weight==2 && list0 && list1
2332 && (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ] != 32))
2333 || h->use_weight==1)
2334 mc_part_weighted(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
2335 x_offset, y_offset, qpix_put, chroma_put,
2336 weight_op[0], weight_op[3], weight_avg[0], weight_avg[3], list0, list1);
2338 mc_part_std(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
2339 x_offset, y_offset, qpix_put, chroma_put, qpix_avg, chroma_avg, list0, list1);
2342 static void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
2343 qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
2344 qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
2345 h264_weight_func *weight_op, h264_biweight_func *weight_avg){
2346 MpegEncContext * const s = &h->s;
2347 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
2348 const int mb_type= s->current_picture.mb_type[mb_xy];
2350 assert(IS_INTER(mb_type));
2352 if(IS_16X16(mb_type)){
2353 mc_part(h, 0, 1, 8, 0, dest_y, dest_cb, dest_cr, 0, 0,
2354 qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
2355 &weight_op[0], &weight_avg[0],
2356 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
2357 }else if(IS_16X8(mb_type)){
2358 mc_part(h, 0, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 0,
2359 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
2360 &weight_op[1], &weight_avg[1],
2361 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
2362 mc_part(h, 8, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 4,
2363 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
2364 &weight_op[1], &weight_avg[1],
2365 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
2366 }else if(IS_8X16(mb_type)){
2367 mc_part(h, 0, 0, 8, 8*s->linesize, dest_y, dest_cb, dest_cr, 0, 0,
2368 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
2369 &weight_op[2], &weight_avg[2],
2370 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
2371 mc_part(h, 4, 0, 8, 8*s->linesize, dest_y, dest_cb, dest_cr, 4, 0,
2372 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
2373 &weight_op[2], &weight_avg[2],
2374 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
2378 assert(IS_8X8(mb_type));
2381 const int sub_mb_type= h->sub_mb_type[i];
2383 int x_offset= (i&1)<<2;
2384 int y_offset= (i&2)<<1;
2386 if(IS_SUB_8X8(sub_mb_type)){
2387 mc_part(h, n, 1, 4, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset,
2388 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
2389 &weight_op[3], &weight_avg[3],
2390 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2391 }else if(IS_SUB_8X4(sub_mb_type)){
2392 mc_part(h, n , 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset,
2393 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
2394 &weight_op[4], &weight_avg[4],
2395 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2396 mc_part(h, n+2, 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset+2,
2397 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
2398 &weight_op[4], &weight_avg[4],
2399 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2400 }else if(IS_SUB_4X8(sub_mb_type)){
2401 mc_part(h, n , 0, 4, 4*s->linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset,
2402 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
2403 &weight_op[5], &weight_avg[5],
2404 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2405 mc_part(h, n+1, 0, 4, 4*s->linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset,
2406 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
2407 &weight_op[5], &weight_avg[5],
2408 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2411 assert(IS_SUB_4X4(sub_mb_type));
2413 int sub_x_offset= x_offset + 2*(j&1);
2414 int sub_y_offset= y_offset + (j&2);
2415 mc_part(h, n+j, 1, 2, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
2416 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
2417 &weight_op[6], &weight_avg[6],
2418 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2425 static void decode_init_vlc(H264Context *h){
2426 static int done = 0;
2432 init_vlc(&chroma_dc_coeff_token_vlc, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 4*5,
2433 &chroma_dc_coeff_token_len [0], 1, 1,
2434 &chroma_dc_coeff_token_bits[0], 1, 1, 1);
2437 init_vlc(&coeff_token_vlc[i], COEFF_TOKEN_VLC_BITS, 4*17,
2438 &coeff_token_len [i][0], 1, 1,
2439 &coeff_token_bits[i][0], 1, 1, 1);
2443 init_vlc(&chroma_dc_total_zeros_vlc[i], CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 4,
2444 &chroma_dc_total_zeros_len [i][0], 1, 1,
2445 &chroma_dc_total_zeros_bits[i][0], 1, 1, 1);
2447 for(i=0; i<15; i++){
2448 init_vlc(&total_zeros_vlc[i], TOTAL_ZEROS_VLC_BITS, 16,
2449 &total_zeros_len [i][0], 1, 1,
2450 &total_zeros_bits[i][0], 1, 1, 1);
2454 init_vlc(&run_vlc[i], RUN_VLC_BITS, 7,
2455 &run_len [i][0], 1, 1,
2456 &run_bits[i][0], 1, 1, 1);
2458 init_vlc(&run7_vlc, RUN7_VLC_BITS, 16,
2459 &run_len [6][0], 1, 1,
2460 &run_bits[6][0], 1, 1, 1);
2465 * Sets the intra prediction function pointers.
2467 static void init_pred_ptrs(H264Context *h){
2468 // MpegEncContext * const s = &h->s;
2470 h->pred4x4[VERT_PRED ]= pred4x4_vertical_c;
2471 h->pred4x4[HOR_PRED ]= pred4x4_horizontal_c;
2472 h->pred4x4[DC_PRED ]= pred4x4_dc_c;
2473 h->pred4x4[DIAG_DOWN_LEFT_PRED ]= pred4x4_down_left_c;
2474 h->pred4x4[DIAG_DOWN_RIGHT_PRED]= pred4x4_down_right_c;
2475 h->pred4x4[VERT_RIGHT_PRED ]= pred4x4_vertical_right_c;
2476 h->pred4x4[HOR_DOWN_PRED ]= pred4x4_horizontal_down_c;
2477 h->pred4x4[VERT_LEFT_PRED ]= pred4x4_vertical_left_c;
2478 h->pred4x4[HOR_UP_PRED ]= pred4x4_horizontal_up_c;
2479 h->pred4x4[LEFT_DC_PRED ]= pred4x4_left_dc_c;
2480 h->pred4x4[TOP_DC_PRED ]= pred4x4_top_dc_c;
2481 h->pred4x4[DC_128_PRED ]= pred4x4_128_dc_c;
2483 h->pred8x8[DC_PRED8x8 ]= pred8x8_dc_c;
2484 h->pred8x8[VERT_PRED8x8 ]= pred8x8_vertical_c;
2485 h->pred8x8[HOR_PRED8x8 ]= pred8x8_horizontal_c;
2486 h->pred8x8[PLANE_PRED8x8 ]= pred8x8_plane_c;
2487 h->pred8x8[LEFT_DC_PRED8x8]= pred8x8_left_dc_c;
2488 h->pred8x8[TOP_DC_PRED8x8 ]= pred8x8_top_dc_c;
2489 h->pred8x8[DC_128_PRED8x8 ]= pred8x8_128_dc_c;
2491 h->pred16x16[DC_PRED8x8 ]= pred16x16_dc_c;
2492 h->pred16x16[VERT_PRED8x8 ]= pred16x16_vertical_c;
2493 h->pred16x16[HOR_PRED8x8 ]= pred16x16_horizontal_c;
2494 h->pred16x16[PLANE_PRED8x8 ]= pred16x16_plane_c;
2495 h->pred16x16[LEFT_DC_PRED8x8]= pred16x16_left_dc_c;
2496 h->pred16x16[TOP_DC_PRED8x8 ]= pred16x16_top_dc_c;
2497 h->pred16x16[DC_128_PRED8x8 ]= pred16x16_128_dc_c;
2500 static void free_tables(H264Context *h){
2501 av_freep(&h->intra4x4_pred_mode);
2502 av_freep(&h->chroma_pred_mode_table);
2503 av_freep(&h->cbp_table);
2504 av_freep(&h->mvd_table[0]);
2505 av_freep(&h->mvd_table[1]);
2506 av_freep(&h->direct_table);
2507 av_freep(&h->non_zero_count);
2508 av_freep(&h->slice_table_base);
2509 av_freep(&h->top_border);
2510 h->slice_table= NULL;
2512 av_freep(&h->mb2b_xy);
2513 av_freep(&h->mb2b8_xy);
2515 av_freep(&h->s.obmc_scratchpad);
2520 * needs widzh/height
2522 static int alloc_tables(H264Context *h){
2523 MpegEncContext * const s = &h->s;
2524 const int big_mb_num= s->mb_stride * (s->mb_height+1);
2527 CHECKED_ALLOCZ(h->intra4x4_pred_mode, big_mb_num * 8 * sizeof(uint8_t))
2529 CHECKED_ALLOCZ(h->non_zero_count , big_mb_num * 16 * sizeof(uint8_t))
2530 CHECKED_ALLOCZ(h->slice_table_base , big_mb_num * sizeof(uint8_t))
2531 CHECKED_ALLOCZ(h->top_border , s->mb_width * (16+8+8) * sizeof(uint8_t))
2532 CHECKED_ALLOCZ(h->cbp_table, big_mb_num * sizeof(uint16_t))
2534 if( h->pps.cabac ) {
2535 CHECKED_ALLOCZ(h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t))
2536 CHECKED_ALLOCZ(h->mvd_table[0], 32*big_mb_num * sizeof(uint16_t));
2537 CHECKED_ALLOCZ(h->mvd_table[1], 32*big_mb_num * sizeof(uint16_t));
2538 CHECKED_ALLOCZ(h->direct_table, 32*big_mb_num * sizeof(uint8_t));
2541 memset(h->slice_table_base, -1, big_mb_num * sizeof(uint8_t));
2542 h->slice_table= h->slice_table_base + s->mb_stride + 1;
2544 CHECKED_ALLOCZ(h->mb2b_xy , big_mb_num * sizeof(uint16_t));
2545 CHECKED_ALLOCZ(h->mb2b8_xy , big_mb_num * sizeof(uint16_t));
2546 for(y=0; y<s->mb_height; y++){
2547 for(x=0; x<s->mb_width; x++){
2548 const int mb_xy= x + y*s->mb_stride;
2549 const int b_xy = 4*x + 4*y*h->b_stride;
2550 const int b8_xy= 2*x + 2*y*h->b8_stride;
2552 h->mb2b_xy [mb_xy]= b_xy;
2553 h->mb2b8_xy[mb_xy]= b8_xy;
2557 s->obmc_scratchpad = NULL;
2565 static void common_init(H264Context *h){
2566 MpegEncContext * const s = &h->s;
2568 s->width = s->avctx->width;
2569 s->height = s->avctx->height;
2570 s->codec_id= s->avctx->codec->id;
2574 s->unrestricted_mv=1;
2575 s->decode=1; //FIXME
2578 static int decode_init(AVCodecContext *avctx){
2579 H264Context *h= avctx->priv_data;
2580 MpegEncContext * const s = &h->s;
2582 MPV_decode_defaults(s);
2587 s->out_format = FMT_H264;
2588 s->workaround_bugs= avctx->workaround_bugs;
2591 // s->decode_mb= ff_h263_decode_mb;
2593 avctx->pix_fmt= PIX_FMT_YUV420P;
2597 if(avctx->codec_tag != 0x31637661 && avctx->codec_tag != 0x31435641) // avc1
2600 if((avctx->extradata_size == 0) || (avctx->extradata == NULL)) {
2601 av_log(avctx, AV_LOG_ERROR, "AVC codec requires avcC data\n");
2611 static void frame_start(H264Context *h){
2612 MpegEncContext * const s = &h->s;
2615 MPV_frame_start(s, s->avctx);
2616 ff_er_frame_start(s);
2618 assert(s->linesize && s->uvlinesize);
2620 for(i=0; i<16; i++){
2621 h->block_offset[i]= 4*((scan8[i] - scan8[0])&7) + 4*s->linesize*((scan8[i] - scan8[0])>>3);
2622 h->chroma_subblock_offset[i]= 2*((scan8[i] - scan8[0])&7) + 2*s->uvlinesize*((scan8[i] - scan8[0])>>3);
2625 h->block_offset[16+i]=
2626 h->block_offset[20+i]= 4*((scan8[i] - scan8[0])&7) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3);
2629 /* can't be in alloc_tables because linesize isn't known there.
2630 * FIXME: redo bipred weight to not require extra buffer? */
2631 if(!s->obmc_scratchpad)
2632 s->obmc_scratchpad = av_malloc(16*s->linesize + 2*8*s->uvlinesize);
2634 // s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1;
2637 static inline void backup_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize){
2638 MpegEncContext * const s = &h->s;
2642 src_cb -= uvlinesize;
2643 src_cr -= uvlinesize;
2645 h->left_border[0]= h->top_border[s->mb_x][15];
2646 for(i=1; i<17; i++){
2647 h->left_border[i]= src_y[15+i* linesize];
2650 *(uint64_t*)(h->top_border[s->mb_x]+0)= *(uint64_t*)(src_y + 16*linesize);
2651 *(uint64_t*)(h->top_border[s->mb_x]+8)= *(uint64_t*)(src_y +8+16*linesize);
2653 if(!(s->flags&CODEC_FLAG_GRAY)){
2654 h->left_border[17 ]= h->top_border[s->mb_x][16+7];
2655 h->left_border[17+9]= h->top_border[s->mb_x][24+7];
2657 h->left_border[i+17 ]= src_cb[7+i*uvlinesize];
2658 h->left_border[i+17+9]= src_cr[7+i*uvlinesize];
2660 *(uint64_t*)(h->top_border[s->mb_x]+16)= *(uint64_t*)(src_cb+8*uvlinesize);
2661 *(uint64_t*)(h->top_border[s->mb_x]+24)= *(uint64_t*)(src_cr+8*uvlinesize);
2665 static inline void xchg_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int xchg){
2666 MpegEncContext * const s = &h->s;
2669 int deblock_left = (s->mb_x > 0);
2670 int deblock_top = (s->mb_y > 0);
2672 src_y -= linesize + 1;
2673 src_cb -= uvlinesize + 1;
2674 src_cr -= uvlinesize + 1;
2676 #define XCHG(a,b,t,xchg)\
2683 for(i = !deblock_top; i<17; i++){
2684 XCHG(h->left_border[i ], src_y [i* linesize], temp8, xchg);
2689 XCHG(*(uint64_t*)(h->top_border[s->mb_x]+0), *(uint64_t*)(src_y +1), temp64, xchg);
2690 XCHG(*(uint64_t*)(h->top_border[s->mb_x]+8), *(uint64_t*)(src_y +9), temp64, 1);
2693 if(!(s->flags&CODEC_FLAG_GRAY)){
2695 for(i = !deblock_top; i<9; i++){
2696 XCHG(h->left_border[i+17 ], src_cb[i*uvlinesize], temp8, xchg);
2697 XCHG(h->left_border[i+17+9], src_cr[i*uvlinesize], temp8, xchg);
2701 XCHG(*(uint64_t*)(h->top_border[s->mb_x]+16), *(uint64_t*)(src_cb+1), temp64, 1);
2702 XCHG(*(uint64_t*)(h->top_border[s->mb_x]+24), *(uint64_t*)(src_cr+1), temp64, 1);
2707 static void hl_decode_mb(H264Context *h){
2708 MpegEncContext * const s = &h->s;
2709 const int mb_x= s->mb_x;
2710 const int mb_y= s->mb_y;
2711 const int mb_xy= mb_x + mb_y*s->mb_stride;
2712 const int mb_type= s->current_picture.mb_type[mb_xy];
2713 uint8_t *dest_y, *dest_cb, *dest_cr;
2714 int linesize, uvlinesize /*dct_offset*/;
2723 dest_y = s->current_picture.data[0] + (mb_y * 16* s->linesize ) + mb_x * 16;
2724 dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
2725 dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
2727 if (h->mb_field_decoding_flag) {
2728 linesize = s->linesize * 2;
2729 uvlinesize = s->uvlinesize * 2;
2730 if(mb_y&1){ //FIXME move out of this func?
2731 dest_y -= s->linesize*15;
2732 dest_cb-= s->linesize*7;
2733 dest_cr-= s->linesize*7;
2736 linesize = s->linesize;
2737 uvlinesize = s->uvlinesize;
2738 // dct_offset = s->linesize * 16;
2741 if(IS_INTRA(mb_type)){
2742 if(h->deblocking_filter)
2743 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1);
2745 if(!(s->flags&CODEC_FLAG_GRAY)){
2746 h->pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
2747 h->pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
2750 if(IS_INTRA4x4(mb_type)){
2752 for(i=0; i<16; i++){
2753 uint8_t * const ptr= dest_y + h->block_offset[i];
2755 const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
2758 if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
2759 const int topright_avail= (h->topright_samples_available<<i)&0x8000;
2760 assert(mb_y || linesize <= h->block_offset[i]);
2761 if(!topright_avail){
2762 tr= ptr[3 - linesize]*0x01010101;
2763 topright= (uint8_t*) &tr;
2764 }else if(i==5 && h->deblocking_filter){
2765 tr= *(uint32_t*)h->top_border[mb_x+1];
2766 topright= (uint8_t*) &tr;
2768 topright= ptr + 4 - linesize;
2772 h->pred4x4[ dir ](ptr, topright, linesize);
2773 if(h->non_zero_count_cache[ scan8[i] ]){
2774 if(s->codec_id == CODEC_ID_H264)
2775 s->dsp.h264_idct_add(ptr, h->mb + i*16, linesize);
2777 svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, 0);
2782 h->pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);
2783 if(s->codec_id == CODEC_ID_H264)
2784 h264_luma_dc_dequant_idct_c(h->mb, s->qscale);
2786 svq3_luma_dc_dequant_idct_c(h->mb, s->qscale);
2788 if(h->deblocking_filter)
2789 xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0);
2790 }else if(s->codec_id == CODEC_ID_H264){
2791 hl_motion(h, dest_y, dest_cb, dest_cr,
2792 s->dsp.put_h264_qpel_pixels_tab, s->dsp.put_h264_chroma_pixels_tab,
2793 s->dsp.avg_h264_qpel_pixels_tab, s->dsp.avg_h264_chroma_pixels_tab,
2794 s->dsp.weight_h264_pixels_tab, s->dsp.biweight_h264_pixels_tab);
2798 if(!IS_INTRA4x4(mb_type)){
2799 if(s->codec_id == CODEC_ID_H264){
2800 for(i=0; i<16; i++){
2801 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below
2802 uint8_t * const ptr= dest_y + h->block_offset[i];
2803 s->dsp.h264_idct_add(ptr, h->mb + i*16, linesize);
2807 for(i=0; i<16; i++){
2808 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below
2809 uint8_t * const ptr= dest_y + h->block_offset[i];
2810 svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0);
2816 if(!(s->flags&CODEC_FLAG_GRAY)){
2817 chroma_dc_dequant_idct_c(h->mb + 16*16, h->chroma_qp);
2818 chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->chroma_qp);
2819 if(s->codec_id == CODEC_ID_H264){
2820 for(i=16; i<16+4; i++){
2821 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2822 uint8_t * const ptr= dest_cb + h->block_offset[i];
2823 s->dsp.h264_idct_add(ptr, h->mb + i*16, uvlinesize);
2826 for(i=20; i<20+4; i++){
2827 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2828 uint8_t * const ptr= dest_cr + h->block_offset[i];
2829 s->dsp.h264_idct_add(ptr, h->mb + i*16, uvlinesize);
2833 for(i=16; i<16+4; i++){
2834 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2835 uint8_t * const ptr= dest_cb + h->block_offset[i];
2836 svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2);
2839 for(i=20; i<20+4; i++){
2840 if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2841 uint8_t * const ptr= dest_cr + h->block_offset[i];
2842 svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2);
2847 if(h->deblocking_filter) {
2848 backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
2849 fill_caches(h, mb_type, 1); //FIXME dont fill stuff which isnt used by filter_mb
2850 filter_mb(h, mb_x, mb_y, dest_y, dest_cb, dest_cr);
2855 * fills the default_ref_list.
2857 static int fill_default_ref_list(H264Context *h){
2858 MpegEncContext * const s = &h->s;
2860 int smallest_poc_greater_than_current = -1;
2861 Picture sorted_short_ref[16];
2863 if(h->slice_type==B_TYPE){
2867 /* sort frame according to poc in B slice */
2868 for(out_i=0; out_i<h->short_ref_count; out_i++){
2870 int best_poc=INT_MAX;
2872 for(i=0; i<h->short_ref_count; i++){
2873 const int poc= h->short_ref[i]->poc;
2874 if(poc > limit && poc < best_poc){
2880 assert(best_i != -1);
2883 sorted_short_ref[out_i]= *h->short_ref[best_i];
2884 tprintf("sorted poc: %d->%d poc:%d fn:%d\n", best_i, out_i, sorted_short_ref[out_i].poc, sorted_short_ref[out_i].frame_num);
2885 if (-1 == smallest_poc_greater_than_current) {
2886 if (h->short_ref[best_i]->poc >= s->current_picture_ptr->poc) {
2887 smallest_poc_greater_than_current = out_i;
2893 if(s->picture_structure == PICT_FRAME){
2894 if(h->slice_type==B_TYPE){
2896 tprintf("current poc: %d, smallest_poc_greater_than_current: %d\n", s->current_picture_ptr->poc, smallest_poc_greater_than_current);
2898 // find the largest poc
2899 for(list=0; list<2; list++){
2902 int step= list ? -1 : 1;
2904 for(i=0; i<h->short_ref_count && index < h->ref_count[list]; i++, j+=step) {
2905 while(j<0 || j>= h->short_ref_count){
2907 j= smallest_poc_greater_than_current + (step>>1);
2909 if(sorted_short_ref[j].reference != 3) continue;
2910 h->default_ref_list[list][index ]= sorted_short_ref[j];
2911 h->default_ref_list[list][index++].pic_id= sorted_short_ref[j].frame_num;
2914 for(i = 0; i < 16 && index < h->ref_count[ list ]; i++){
2915 if(h->long_ref[i] == NULL) continue;
2916 if(h->long_ref[i]->reference != 3) continue;
2918 h->default_ref_list[ list ][index ]= *h->long_ref[i];
2919 h->default_ref_list[ list ][index++].pic_id= i;;
2922 if(list && (smallest_poc_greater_than_current<=0 || smallest_poc_greater_than_current>=h->short_ref_count) && (1 < index)){
2923 // swap the two first elements of L1 when
2924 // L0 and L1 are identical
2925 Picture temp= h->default_ref_list[1][0];
2926 h->default_ref_list[1][0] = h->default_ref_list[1][1];
2927 h->default_ref_list[1][0] = temp;
2930 if(index < h->ref_count[ list ])
2931 memset(&h->default_ref_list[list][index], 0, sizeof(Picture)*(h->ref_count[ list ] - index));
2935 for(i=0; i<h->short_ref_count && index < h->ref_count[0]; i++){
2936 if(h->short_ref[i]->reference != 3) continue; //FIXME refernce field shit
2937 h->default_ref_list[0][index ]= *h->short_ref[i];
2938 h->default_ref_list[0][index++].pic_id= h->short_ref[i]->frame_num;
2940 for(i = 0; i < 16 && index < h->ref_count[0]; i++){
2941 if(h->long_ref[i] == NULL) continue;
2942 if(h->long_ref[i]->reference != 3) continue;
2943 h->default_ref_list[0][index ]= *h->long_ref[i];
2944 h->default_ref_list[0][index++].pic_id= i;;
2946 if(index < h->ref_count[0])
2947 memset(&h->default_ref_list[0][index], 0, sizeof(Picture)*(h->ref_count[0] - index));
2950 if(h->slice_type==B_TYPE){
2952 //FIXME second field balh
2956 for (i=0; i<h->ref_count[0]; i++) {
2957 tprintf("List0: %s fn:%d 0x%p\n", (h->default_ref_list[0][i].long_ref ? "LT" : "ST"), h->default_ref_list[0][i].pic_id, h->default_ref_list[0][i].data[0]);
2959 if(h->slice_type==B_TYPE){
2960 for (i=0; i<h->ref_count[1]; i++) {
2961 tprintf("List1: %s fn:%d 0x%p\n", (h->default_ref_list[1][i].long_ref ? "LT" : "ST"), h->default_ref_list[1][i].pic_id, h->default_ref_list[0][i].data[0]);
2968 static void print_short_term(H264Context *h);
2969 static void print_long_term(H264Context *h);
2971 static int decode_ref_pic_list_reordering(H264Context *h){
2972 MpegEncContext * const s = &h->s;
2975 print_short_term(h);
2977 if(h->slice_type==I_TYPE || h->slice_type==SI_TYPE) return 0; //FIXME move beofre func
2979 for(list=0; list<2; list++){
2980 memcpy(h->ref_list[list], h->default_ref_list[list], sizeof(Picture)*h->ref_count[list]);
2982 if(get_bits1(&s->gb)){
2983 int pred= h->curr_pic_num;
2986 for(index=0; ; index++){
2987 int reordering_of_pic_nums_idc= get_ue_golomb(&s->gb);
2991 if(reordering_of_pic_nums_idc==3)
2994 if(index >= h->ref_count[list]){
2995 av_log(h->s.avctx, AV_LOG_ERROR, "reference count overflow\n");
2999 if(reordering_of_pic_nums_idc<3){
3000 if(reordering_of_pic_nums_idc<2){
3001 const int abs_diff_pic_num= get_ue_golomb(&s->gb) + 1;
3003 if(abs_diff_pic_num >= h->max_pic_num){
3004 av_log(h->s.avctx, AV_LOG_ERROR, "abs_diff_pic_num overflow\n");
3008 if(reordering_of_pic_nums_idc == 0) pred-= abs_diff_pic_num;
3009 else pred+= abs_diff_pic_num;
3010 pred &= h->max_pic_num - 1;
3012 for(i= h->ref_count[list]-1; i>=index; i--){
3013 if(h->ref_list[list][i].pic_id == pred && h->ref_list[list][i].long_ref==0)
3017 pic_id= get_ue_golomb(&s->gb); //long_term_pic_idx
3019 for(i= h->ref_count[list]-1; i>=index; i--){
3020 if(h->ref_list[list][i].pic_id == pic_id && h->ref_list[list][i].long_ref==1)
3026 av_log(h->s.avctx, AV_LOG_ERROR, "reference picture missing during reorder\n");
3027 memset(&h->ref_list[list][index], 0, sizeof(Picture)); //FIXME
3028 }else if(i > index){
3029 Picture tmp= h->ref_list[list][i];
3030 for(; i>index; i--){
3031 h->ref_list[list][i]= h->ref_list[list][i-1];
3033 h->ref_list[list][index]= tmp;
3036 av_log(h->s.avctx, AV_LOG_ERROR, "illegal reordering_of_pic_nums_idc\n");
3042 if(h->slice_type!=B_TYPE) break;
3045 if(h->slice_type==B_TYPE && !h->direct_spatial_mv_pred)
3046 direct_dist_scale_factor(h);
3050 static int pred_weight_table(H264Context *h){
3051 MpegEncContext * const s = &h->s;
3053 int luma_def, chroma_def;
3056 h->use_weight_chroma= 0;
3057 h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
3058 h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
3059 luma_def = 1<<h->luma_log2_weight_denom;
3060 chroma_def = 1<<h->chroma_log2_weight_denom;
3062 for(list=0; list<2; list++){
3063 for(i=0; i<h->ref_count[list]; i++){
3064 int luma_weight_flag, chroma_weight_flag;
3066 luma_weight_flag= get_bits1(&s->gb);
3067 if(luma_weight_flag){
3068 h->luma_weight[list][i]= get_se_golomb(&s->gb);
3069 h->luma_offset[list][i]= get_se_golomb(&s->gb);
3070 if( h->luma_weight[list][i] != luma_def
3071 || h->luma_offset[list][i] != 0)
3074 h->luma_weight[list][i]= luma_def;
3075 h->luma_offset[list][i]= 0;
3078 chroma_weight_flag= get_bits1(&s->gb);
3079 if(chroma_weight_flag){
3082 h->chroma_weight[list][i][j]= get_se_golomb(&s->gb);
3083 h->chroma_offset[list][i][j]= get_se_golomb(&s->gb);
3084 if( h->chroma_weight[list][i][j] != chroma_def
3085 || h->chroma_offset[list][i][j] != 0)
3086 h->use_weight_chroma= 1;
3091 h->chroma_weight[list][i][j]= chroma_def;
3092 h->chroma_offset[list][i][j]= 0;
3096 if(h->slice_type != B_TYPE) break;
3098 h->use_weight= h->use_weight || h->use_weight_chroma;
3102 static void implicit_weight_table(H264Context *h){
3103 MpegEncContext * const s = &h->s;
3105 int cur_poc = s->current_picture_ptr->poc;
3107 if( h->ref_count[0] == 1 && h->ref_count[1] == 1
3108 && h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){
3110 h->use_weight_chroma= 0;
3115 h->use_weight_chroma= 2;
3116 h->luma_log2_weight_denom= 5;
3117 h->chroma_log2_weight_denom= 5;
3120 for(ref0=0; ref0 < h->ref_count[0]; ref0++){
3121 int poc0 = h->ref_list[0][ref0].poc;
3122 for(ref1=0; ref1 < h->ref_count[1]; ref1++){
3123 int poc1 = h->ref_list[0][ref1].poc;
3124 int td = clip(poc1 - poc0, -128, 127);
3126 int tb = clip(cur_poc - poc0, -128, 127);
3127 int tx = (16384 + (ABS(td) >> 1)) / td;
3128 int dist_scale_factor = clip((tb*tx + 32) >> 6, -1024, 1023) >> 2;
3129 if(dist_scale_factor < -64 || dist_scale_factor > 128)
3130 h->implicit_weight[ref0][ref1] = 32;
3132 h->implicit_weight[ref0][ref1] = 64 - dist_scale_factor;
3134 h->implicit_weight[ref0][ref1] = 32;
3140 * instantaneous decoder refresh.
3142 static void idr(H264Context *h){
3145 #define CHECK_DELAY(pic) \
3146 for(j = 0; h->delayed_pic[j]; j++) \
3147 if(pic == h->delayed_pic[j]){ \
3152 for(i=0; i<h->long_ref_count; i++){
3153 h->long_ref[i]->reference=0;
3154 CHECK_DELAY(h->long_ref[i]);
3155 h->long_ref[i]= NULL;
3157 h->long_ref_count=0;
3159 for(i=0; i<h->short_ref_count; i++){
3160 h->short_ref[i]->reference=0;
3161 CHECK_DELAY(h->short_ref[i]);
3162 h->short_ref[i]= NULL;
3164 h->short_ref_count=0;
3170 * @return the removed picture or NULL if an error occures
3172 static Picture * remove_short(H264Context *h, int frame_num){
3173 MpegEncContext * const s = &h->s;
3176 if(s->avctx->debug&FF_DEBUG_MMCO)
3177 av_log(h->s.avctx, AV_LOG_DEBUG, "remove short %d count %d\n", frame_num, h->short_ref_count);
3179 for(i=0; i<h->short_ref_count; i++){
3180 Picture *pic= h->short_ref[i];
3181 if(s->avctx->debug&FF_DEBUG_MMCO)
3182 av_log(h->s.avctx, AV_LOG_DEBUG, "%d %d %p\n", i, pic->frame_num, pic);
3183 if(pic->frame_num == frame_num){
3184 h->short_ref[i]= NULL;
3185 memmove(&h->short_ref[i], &h->short_ref[i+1], (h->short_ref_count - i - 1)*sizeof(Picture*));
3186 h->short_ref_count--;
3195 * @return the removed picture or NULL if an error occures
3197 static Picture * remove_long(H264Context *h, int i){
3200 pic= h->long_ref[i];
3201 h->long_ref[i]= NULL;
3202 if(pic) h->long_ref_count--;
3208 * print short term list
3210 static void print_short_term(H264Context *h) {
3212 if(h->s.avctx->debug&FF_DEBUG_MMCO) {
3213 av_log(h->s.avctx, AV_LOG_DEBUG, "short term list:\n");
3214 for(i=0; i<h->short_ref_count; i++){
3215 Picture *pic= h->short_ref[i];
3216 av_log(h->s.avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n", i, pic->frame_num, pic->poc, pic->data[0]);
3222 * print long term list
3224 static void print_long_term(H264Context *h) {
3226 if(h->s.avctx->debug&FF_DEBUG_MMCO) {
3227 av_log(h->s.avctx, AV_LOG_DEBUG, "long term list:\n");
3228 for(i = 0; i < 16; i++){
3229 Picture *pic= h->long_ref[i];
3231 av_log(h->s.avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n", i, pic->frame_num, pic->poc, pic->data[0]);
3238 * Executes the reference picture marking (memory management control operations).
3240 static int execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
3241 MpegEncContext * const s = &h->s;
3243 int current_is_long=0;
3246 if((s->avctx->debug&FF_DEBUG_MMCO) && mmco_count==0)
3247 av_log(h->s.avctx, AV_LOG_DEBUG, "no mmco here\n");
3249 for(i=0; i<mmco_count; i++){
3250 if(s->avctx->debug&FF_DEBUG_MMCO)
3251 av_log(h->s.avctx, AV_LOG_DEBUG, "mmco:%d %d %d\n", h->mmco[i].opcode, h->mmco[i].short_frame_num, h->mmco[i].long_index);
3253 switch(mmco[i].opcode){
3254 case MMCO_SHORT2UNUSED:
3255 pic= remove_short(h, mmco[i].short_frame_num);
3256 if(pic==NULL) return -1;
3259 case MMCO_SHORT2LONG:
3260 pic= remove_long(h, mmco[i].long_index);
3261 if(pic) pic->reference=0;
3263 h->long_ref[ mmco[i].long_index ]= remove_short(h, mmco[i].short_frame_num);
3264 h->long_ref[ mmco[i].long_index ]->long_ref=1;
3266 case MMCO_LONG2UNUSED:
3267 pic= remove_long(h, mmco[i].long_index);
3268 if(pic==NULL) return -1;
3272 pic= remove_long(h, mmco[i].long_index);
3273 if(pic) pic->reference=0;
3275 h->long_ref[ mmco[i].long_index ]= s->current_picture_ptr;
3276 h->long_ref[ mmco[i].long_index ]->long_ref=1;
3277 h->long_ref_count++;
3281 case MMCO_SET_MAX_LONG:
3282 assert(mmco[i].long_index <= 16);
3283 // just remove the long term which index is greater than new max
3284 for(j = mmco[i].long_index; j<16; j++){
3285 pic = remove_long(h, j);
3286 if (pic) pic->reference=0;
3290 while(h->short_ref_count){
3291 pic= remove_short(h, h->short_ref[0]->frame_num);
3294 for(j = 0; j < 16; j++) {
3295 pic= remove_long(h, j);
3296 if(pic) pic->reference=0;
3303 if(!current_is_long){
3304 pic= remove_short(h, s->current_picture_ptr->frame_num);
3307 av_log(h->s.avctx, AV_LOG_ERROR, "illegal short term buffer state detected\n");
3310 if(h->short_ref_count)
3311 memmove(&h->short_ref[1], &h->short_ref[0], h->short_ref_count*sizeof(Picture*));
3313 h->short_ref[0]= s->current_picture_ptr;
3314 h->short_ref[0]->long_ref=0;
3315 h->short_ref_count++;
3318 print_short_term(h);
3323 static int decode_ref_pic_marking(H264Context *h){
3324 MpegEncContext * const s = &h->s;
3327 if(h->nal_unit_type == NAL_IDR_SLICE){ //FIXME fields
3328 s->broken_link= get_bits1(&s->gb) -1;
3329 h->mmco[0].long_index= get_bits1(&s->gb) - 1; // current_long_term_idx
3330 if(h->mmco[0].long_index == -1)
3333 h->mmco[0].opcode= MMCO_LONG;
3337 if(get_bits1(&s->gb)){ // adaptive_ref_pic_marking_mode_flag
3338 for(i= 0; i<MAX_MMCO_COUNT; i++) {
3339 MMCOOpcode opcode= get_ue_golomb(&s->gb);;
3341 h->mmco[i].opcode= opcode;
3342 if(opcode==MMCO_SHORT2UNUSED || opcode==MMCO_SHORT2LONG){
3343 h->mmco[i].short_frame_num= (h->frame_num - get_ue_golomb(&s->gb) - 1) & ((1<<h->sps.log2_max_frame_num)-1); //FIXME fields
3344 /* if(h->mmco[i].short_frame_num >= h->short_ref_count || h->short_ref[ h->mmco[i].short_frame_num ] == NULL){
3345 fprintf(stderr, "illegal short ref in memory management control operation %d\n", mmco);
3349 if(opcode==MMCO_SHORT2LONG || opcode==MMCO_LONG2UNUSED || opcode==MMCO_LONG || opcode==MMCO_SET_MAX_LONG){
3350 h->mmco[i].long_index= get_ue_golomb(&s->gb);
3351 if(/*h->mmco[i].long_index >= h->long_ref_count || h->long_ref[ h->mmco[i].long_index ] == NULL*/ h->mmco[i].long_index >= 16){
3352 av_log(h->s.avctx, AV_LOG_ERROR, "illegal long ref in memory management control operation %d\n", opcode);
3357 if(opcode > MMCO_LONG){
3358 av_log(h->s.avctx, AV_LOG_ERROR, "illegal memory management control operation %d\n", opcode);
3361 if(opcode == MMCO_END)
3366 assert(h->long_ref_count + h->short_ref_count <= h->sps.ref_frame_count);
3368 if(h->long_ref_count + h->short_ref_count == h->sps.ref_frame_count){ //FIXME fields
3369 h->mmco[0].opcode= MMCO_SHORT2UNUSED;
3370 h->mmco[0].short_frame_num= h->short_ref[ h->short_ref_count - 1 ]->frame_num;
3380 static int init_poc(H264Context *h){
3381 MpegEncContext * const s = &h->s;
3382 const int max_frame_num= 1<<h->sps.log2_max_frame_num;
3385 if(h->nal_unit_type == NAL_IDR_SLICE){
3386 h->frame_num_offset= 0;
3388 if(h->frame_num < h->prev_frame_num)
3389 h->frame_num_offset= h->prev_frame_num_offset + max_frame_num;
3391 h->frame_num_offset= h->prev_frame_num_offset;
3394 if(h->sps.poc_type==0){
3395 const int max_poc_lsb= 1<<h->sps.log2_max_poc_lsb;
3397 if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2)
3398 h->poc_msb = h->prev_poc_msb + max_poc_lsb;
3399 else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2)
3400 h->poc_msb = h->prev_poc_msb - max_poc_lsb;
3402 h->poc_msb = h->prev_poc_msb;
3403 //printf("poc: %d %d\n", h->poc_msb, h->poc_lsb);
3405 field_poc[1] = h->poc_msb + h->poc_lsb;
3406 if(s->picture_structure == PICT_FRAME)
3407 field_poc[1] += h->delta_poc_bottom;
3408 }else if(h->sps.poc_type==1){
3409 int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
3412 if(h->sps.poc_cycle_length != 0)
3413 abs_frame_num = h->frame_num_offset + h->frame_num;
3417 if(h->nal_ref_idc==0 && abs_frame_num > 0)
3420 expected_delta_per_poc_cycle = 0;
3421 for(i=0; i < h->sps.poc_cycle_length; i++)
3422 expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse
3424 if(abs_frame_num > 0){
3425 int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length;
3426 int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;
3428 expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;
3429 for(i = 0; i <= frame_num_in_poc_cycle; i++)
3430 expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ];
3434 if(h->nal_ref_idc == 0)
3435 expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;
3437 field_poc[0] = expectedpoc + h->delta_poc[0];
3438 field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;
3440 if(s->picture_structure == PICT_FRAME)
3441 field_poc[1] += h->delta_poc[1];
3444 if(h->nal_unit_type == NAL_IDR_SLICE){
3447 if(h->nal_ref_idc) poc= 2*(h->frame_num_offset + h->frame_num);
3448 else poc= 2*(h->frame_num_offset + h->frame_num) - 1;
3454 if(s->picture_structure != PICT_BOTTOM_FIELD)
3455 s->current_picture_ptr->field_poc[0]= field_poc[0];
3456 if(s->picture_structure != PICT_TOP_FIELD)
3457 s->current_picture_ptr->field_poc[1]= field_poc[1];
3458 if(s->picture_structure == PICT_FRAME) // FIXME field pix?
3459 s->current_picture_ptr->poc= FFMIN(field_poc[0], field_poc[1]);
3465 * decodes a slice header.
3466 * this will allso call MPV_common_init() and frame_start() as needed
3468 static int decode_slice_header(H264Context *h){
3469 MpegEncContext * const s = &h->s;
3470 int first_mb_in_slice, pps_id;
3471 int num_ref_idx_active_override_flag;
3472 static const uint8_t slice_type_map[5]= {P_TYPE, B_TYPE, I_TYPE, SP_TYPE, SI_TYPE};
3474 s->current_picture.reference= h->nal_ref_idc != 0;
3476 first_mb_in_slice= get_ue_golomb(&s->gb);
3478 h->slice_type= get_ue_golomb(&s->gb);
3479 if(h->slice_type > 9){
3480 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);
3483 if(h->slice_type > 4){
3485 h->slice_type_fixed=1;
3487 h->slice_type_fixed=0;
3489 h->slice_type= slice_type_map[ h->slice_type ];
3491 s->pict_type= h->slice_type; // to make a few old func happy, its wrong though
3493 pps_id= get_ue_golomb(&s->gb);
3495 av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
3498 h->pps= h->pps_buffer[pps_id];
3499 if(h->pps.slice_group_count == 0){
3500 av_log(h->s.avctx, AV_LOG_ERROR, "non existing PPS referenced\n");
3504 h->sps= h->sps_buffer[ h->pps.sps_id ];
3505 if(h->sps.log2_max_frame_num == 0){
3506 av_log(h->s.avctx, AV_LOG_ERROR, "non existing SPS referenced\n");
3510 s->mb_width= h->sps.mb_width;
3511 s->mb_height= h->sps.mb_height;
3513 h->b_stride= s->mb_width*4 + 1;
3514 h->b8_stride= s->mb_width*2 + 1;
3516 s->resync_mb_x = s->mb_x = first_mb_in_slice % s->mb_width;
3517 s->resync_mb_y = s->mb_y = first_mb_in_slice / s->mb_width; //FIXME AFFW
3519 s->width = 16*s->mb_width - 2*(h->sps.crop_left + h->sps.crop_right );
3520 if(h->sps.frame_mbs_only_flag)
3521 s->height= 16*s->mb_height - 2*(h->sps.crop_top + h->sps.crop_bottom);
3523 s->height= 16*s->mb_height - 4*(h->sps.crop_top + h->sps.crop_bottom); //FIXME recheck
3525 if (s->context_initialized
3526 && ( s->width != s->avctx->width || s->height != s->avctx->height)) {
3530 if (!s->context_initialized) {
3531 if (MPV_common_init(s) < 0)
3536 s->avctx->width = s->width;
3537 s->avctx->height = s->height;
3538 s->avctx->sample_aspect_ratio= h->sps.sar;
3539 if(!s->avctx->sample_aspect_ratio.den)
3540 s->avctx->sample_aspect_ratio.den = 1;
3542 if(h->sps.timing_info_present_flag && h->sps.fixed_frame_rate_flag){
3543 s->avctx->frame_rate = h->sps.time_scale;
3544 s->avctx->frame_rate_base = h->sps.num_units_in_tick;
3548 if(h->slice_num == 0){
3552 s->current_picture_ptr->frame_num= //FIXME frame_num cleanup
3553 h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num);
3555 if(h->sps.frame_mbs_only_flag){
3556 s->picture_structure= PICT_FRAME;
3558 if(get_bits1(&s->gb)) //field_pic_flag
3559 s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag
3561 s->picture_structure= PICT_FRAME;
3564 if(s->picture_structure==PICT_FRAME){
3565 h->curr_pic_num= h->frame_num;
3566 h->max_pic_num= 1<< h->sps.log2_max_frame_num;
3568 h->curr_pic_num= 2*h->frame_num;
3569 h->max_pic_num= 1<<(h->sps.log2_max_frame_num + 1);
3572 if(h->nal_unit_type == NAL_IDR_SLICE){
3573 get_ue_golomb(&s->gb); /* idr_pic_id */
3576 if(h->sps.poc_type==0){
3577 h->poc_lsb= get_bits(&s->gb, h->sps.log2_max_poc_lsb);
3579 if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME){
3580 h->delta_poc_bottom= get_se_golomb(&s->gb);
3584 if(h->sps.poc_type==1 && !h->sps.delta_pic_order_always_zero_flag){
3585 h->delta_poc[0]= get_se_golomb(&s->gb);
3587 if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME)
3588 h->delta_poc[1]= get_se_golomb(&s->gb);
3593 if(h->pps.redundant_pic_cnt_present){
3594 h->redundant_pic_count= get_ue_golomb(&s->gb);
3597 //set defaults, might be overriden a few line later
3598 h->ref_count[0]= h->pps.ref_count[0];
3599 h->ref_count[1]= h->pps.ref_count[1];
3601 if(h->slice_type == P_TYPE || h->slice_type == SP_TYPE || h->slice_type == B_TYPE){
3602 if(h->slice_type == B_TYPE){
3603 h->direct_spatial_mv_pred= get_bits1(&s->gb);
3605 num_ref_idx_active_override_flag= get_bits1(&s->gb);
3607 if(num_ref_idx_active_override_flag){
3608 h->ref_count[0]= get_ue_golomb(&s->gb) + 1;
3609 if(h->slice_type==B_TYPE)
3610 h->ref_count[1]= get_ue_golomb(&s->gb) + 1;
3612 if(h->ref_count[0] > 32 || h->ref_count[1] > 32){
3613 av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
3619 if(h->slice_num == 0){
3620 fill_default_ref_list(h);
3623 decode_ref_pic_list_reordering(h);
3625 if( (h->pps.weighted_pred && (h->slice_type == P_TYPE || h->slice_type == SP_TYPE ))
3626 || (h->pps.weighted_bipred_idc==1 && h->slice_type==B_TYPE ) )
3627 pred_weight_table(h);
3628 else if(h->pps.weighted_bipred_idc==2 && h->slice_type==B_TYPE)
3629 implicit_weight_table(h);
3633 if(s->current_picture.reference)
3634 decode_ref_pic_marking(h);
3636 if( h->slice_type != I_TYPE && h->slice_type != SI_TYPE && h->pps.cabac )
3637 h->cabac_init_idc = get_ue_golomb(&s->gb);
3639 h->last_qscale_diff = 0;
3640 s->qscale = h->pps.init_qp + get_se_golomb(&s->gb);
3641 if(s->qscale<0 || s->qscale>51){
3642 av_log(s->avctx, AV_LOG_ERROR, "QP %d out of range\n", s->qscale);
3645 h->chroma_qp = get_chroma_qp(h, s->qscale);
3646 //FIXME qscale / qp ... stuff
3647 if(h->slice_type == SP_TYPE){
3648 get_bits1(&s->gb); /* sp_for_switch_flag */
3650 if(h->slice_type==SP_TYPE || h->slice_type == SI_TYPE){
3651 get_se_golomb(&s->gb); /* slice_qs_delta */
3654 h->deblocking_filter = 1;
3655 h->slice_alpha_c0_offset = 0;
3656 h->slice_beta_offset = 0;
3657 if( h->pps.deblocking_filter_parameters_present ) {
3658 h->deblocking_filter= get_ue_golomb(&s->gb);
3659 if(h->deblocking_filter < 2)
3660 h->deblocking_filter^= 1; // 1<->0
3662 if( h->deblocking_filter ) {
3663 h->slice_alpha_c0_offset = get_se_golomb(&s->gb) << 1;
3664 h->slice_beta_offset = get_se_golomb(&s->gb) << 1;
3669 if( h->pps.num_slice_groups > 1 && h->pps.mb_slice_group_map_type >= 3 && h->pps.mb_slice_group_map_type <= 5)
3670 slice_group_change_cycle= get_bits(&s->gb, ?);
3675 if(s->avctx->debug&FF_DEBUG_PICT_INFO){
3676 av_log(h->s.avctx, AV_LOG_DEBUG, "slice:%d mb:%d %c pps:%d frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d weight:%d%s\n",
3677 h->slice_num, first_mb_in_slice,
3678 av_get_pict_type_char(h->slice_type),
3679 pps_id, h->frame_num,
3680 s->current_picture_ptr->field_poc[0], s->current_picture_ptr->field_poc[1],
3681 h->ref_count[0], h->ref_count[1],
3683 h->deblocking_filter,
3685 h->use_weight==1 && h->use_weight_chroma ? "c" : ""
3695 static inline int get_level_prefix(GetBitContext *gb){
3699 OPEN_READER(re, gb);
3700 UPDATE_CACHE(re, gb);
3701 buf=GET_CACHE(re, gb);
3703 log= 32 - av_log2(buf);
3705 print_bin(buf>>(32-log), log);
3706 av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d lpr @%5d in %s get_level_prefix\n", buf>>(32-log), log, log-1, get_bits_count(gb), __FILE__);
3709 LAST_SKIP_BITS(re, gb, log);
3710 CLOSE_READER(re, gb);
3716 * decodes a residual block.
3717 * @param n block index
3718 * @param scantable scantable
3719 * @param max_coeff number of coefficients in the block
3720 * @return <0 if an error occured
3722 static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, int n, const uint8_t *scantable, int qp, int max_coeff){
3723 MpegEncContext * const s = &h->s;
3724 const uint16_t *qmul= dequant_coeff[qp];
3725 static const int coeff_token_table_index[17]= {0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3};
3726 int level[16], run[16];
3727 int suffix_length, zeros_left, coeff_num, coeff_token, total_coeff, i, trailing_ones;
3729 //FIXME put trailing_onex into the context
3731 if(n == CHROMA_DC_BLOCK_INDEX){
3732 coeff_token= get_vlc2(gb, chroma_dc_coeff_token_vlc.table, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 1);
3733 total_coeff= coeff_token>>2;
3735 if(n == LUMA_DC_BLOCK_INDEX){
3736 total_coeff= pred_non_zero_count(h, 0);
3737 coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2);
3738 total_coeff= coeff_token>>2;
3740 total_coeff= pred_non_zero_count(h, n);
3741 coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2);
3742 total_coeff= coeff_token>>2;
3743 h->non_zero_count_cache[ scan8[n] ]= total_coeff;
3747 //FIXME set last_non_zero?
3752 trailing_ones= coeff_token&3;
3753 tprintf("trailing:%d, total:%d\n", trailing_ones, total_coeff);
3754 assert(total_coeff<=16);
3756 for(i=0; i<trailing_ones; i++){
3757 level[i]= 1 - 2*get_bits1(gb);
3760 suffix_length= total_coeff > 10 && trailing_ones < 3;
3762 for(; i<total_coeff; i++){
3763 const int prefix= get_level_prefix(gb);
3764 int level_code, mask;
3766 if(prefix<14){ //FIXME try to build a large unified VLC table for all this
3768 level_code= (prefix<<suffix_length) + get_bits(gb, suffix_length); //part
3770 level_code= (prefix<<suffix_length); //part
3771 }else if(prefix==14){
3773 level_code= (prefix<<suffix_length) + get_bits(gb, suffix_length); //part
3775 level_code= prefix + get_bits(gb, 4); //part
3776 }else if(prefix==15){
3777 level_code= (prefix<<suffix_length) + get_bits(gb, 12); //part
3778 if(suffix_length==0) level_code+=15; //FIXME doesnt make (much)sense
3780 av_log(h->s.avctx, AV_LOG_ERROR, "prefix too large at %d %d\n", s->mb_x, s->mb_y);
3784 if(i==trailing_ones && i<3) level_code+= 2; //FIXME split first iteration
3786 mask= -(level_code&1);
3787 level[i]= (((2+level_code)>>1) ^ mask) - mask;
3789 if(suffix_length==0) suffix_length=1; //FIXME split first iteration
3792 if(ABS(level[i]) > (3<<(suffix_length-1)) && suffix_length<6) suffix_length++;
3794 if((2+level_code)>>1) > (3<<(suffix_length-1)) && suffix_length<6) suffix_length++;
3795 /* ? == prefix > 2 or sth */
3797 tprintf("level: %d suffix_length:%d\n", level[i], suffix_length);
3800 if(total_coeff == max_coeff)
3803 if(n == CHROMA_DC_BLOCK_INDEX)
3804 zeros_left= get_vlc2(gb, chroma_dc_total_zeros_vlc[ total_coeff-1 ].table, CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 1);
3806 zeros_left= get_vlc2(gb, total_zeros_vlc[ total_coeff-1 ].table, TOTAL_ZEROS_VLC_BITS, 1);
3809 for(i=0; i<total_coeff-1; i++){
3812 else if(zeros_left < 7){
3813 run[i]= get_vlc2(gb, run_vlc[zeros_left-1].table, RUN_VLC_BITS, 1);
3815 run[i]= get_vlc2(gb, run7_vlc.table, RUN7_VLC_BITS, 2);
3817 zeros_left -= run[i];
3821 av_log(h->s.avctx, AV_LOG_ERROR, "negative number of zero coeffs at %d %d\n", s->mb_x, s->mb_y);
3825 for(; i<total_coeff-1; i++){
3833 for(i=total_coeff-1; i>=0; i--){ //FIXME merge into rundecode?
3836 coeff_num += run[i] + 1; //FIXME add 1 earlier ?
3837 j= scantable[ coeff_num ];
3842 for(i=total_coeff-1; i>=0; i--){ //FIXME merge into rundecode?
3845 coeff_num += run[i] + 1; //FIXME add 1 earlier ?
3846 j= scantable[ coeff_num ];
3848 block[j]= level[i] * qmul[j];
3849 // printf("%d %d ", block[j], qmul[j]);
3856 * decodes a P_SKIP or B_SKIP macroblock
3858 static void decode_mb_skip(H264Context *h){
3859 MpegEncContext * const s = &h->s;
3860 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
3863 memset(h->non_zero_count[mb_xy], 0, 16);
3864 memset(h->non_zero_count_cache + 8, 0, 8*5); //FIXME ugly, remove pfui
3866 if( h->slice_type == B_TYPE )
3868 // just for fill_caches. pred_direct_motion will set the real mb_type
3869 mb_type= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2|MB_TYPE_SKIP;
3872 fill_caches(h, mb_type, 0); //FIXME check what is needed and what not ...
3873 pred_direct_motion(h, &mb_type);
3875 fill_rectangle(h->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 4);
3876 fill_rectangle(h->mvd_cache[1][scan8[0]], 4, 4, 8, 0, 4);
3882 mb_type= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_SKIP;
3884 if(h->sps.mb_aff && s->mb_skip_run==0 && (s->mb_y&1)==0){
3885 h->mb_field_decoding_flag= get_bits1(&s->gb);
3887 if(h->mb_field_decoding_flag)
3888 mb_type|= MB_TYPE_INTERLACED;
3890 fill_caches(h, mb_type, 0); //FIXME check what is needed and what not ...
3891 pred_pskip_motion(h, &mx, &my);
3892 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
3893 fill_rectangle( h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx,my), 4);
3895 fill_rectangle(h->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 4);
3898 write_back_motion(h, mb_type);
3899 s->current_picture.mb_type[mb_xy]= mb_type|MB_TYPE_SKIP;
3900 s->current_picture.qscale_table[mb_xy]= s->qscale;
3901 h->slice_table[ mb_xy ]= h->slice_num;
3902 h->prev_mb_skiped= 1;
3906 * decodes a macroblock
3907 * @returns 0 if ok, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
3909 static int decode_mb_cavlc(H264Context *h){
3910 MpegEncContext * const s = &h->s;
3911 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
3912 int mb_type, partition_count, cbp;
3914 s->dsp.clear_blocks(h->mb); //FIXME avoid if allready clear (move after skip handlong?
3916 tprintf("pic:%d mb:%d/%d\n", h->frame_num, s->mb_x, s->mb_y);
3917 cbp = 0; /* avoid warning. FIXME: find a solution without slowing
3919 if(h->slice_type != I_TYPE && h->slice_type != SI_TYPE){
3920 if(s->mb_skip_run==-1)
3921 s->mb_skip_run= get_ue_golomb(&s->gb);
3923 if (s->mb_skip_run--) {
3928 if(h->sps.mb_aff /* && !field pic FIXME needed? */){
3930 h->mb_field_decoding_flag = get_bits1(&s->gb);
3932 h->mb_field_decoding_flag=0; //FIXME som ed note ?!
3934 h->prev_mb_skiped= 0;
3936 mb_type= get_ue_golomb(&s->gb);
3937 if(h->slice_type == B_TYPE){
3939 partition_count= b_mb_type_info[mb_type].partition_count;
3940 mb_type= b_mb_type_info[mb_type].type;
3943 goto decode_intra_mb;
3945 }else if(h->slice_type == P_TYPE /*|| h->slice_type == SP_TYPE */){
3947 partition_count= p_mb_type_info[mb_type].partition_count;
3948 mb_type= p_mb_type_info[mb_type].type;
3951 goto decode_intra_mb;
3954 assert(h->slice_type == I_TYPE);
3957 av_log(h->s.avctx, AV_LOG_ERROR, "mb_type %d in %c slice to large at %d %d\n", mb_type, av_get_pict_type_char(h->slice_type), s->mb_x, s->mb_y);
3961 cbp= i_mb_type_info[mb_type].cbp;
3962 h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;
3963 mb_type= i_mb_type_info[mb_type].type;
3966 if(h->mb_field_decoding_flag)
3967 mb_type |= MB_TYPE_INTERLACED;
3969 s->current_picture.mb_type[mb_xy]= mb_type;
3970 h->slice_table[ mb_xy ]= h->slice_num;
3972 if(IS_INTRA_PCM(mb_type)){
3976 // we assume these blocks are very rare so we dont optimize it
3977 align_get_bits(&s->gb);
3979 ptr= s->gb.buffer + get_bits_count(&s->gb);
3981 for(y=0; y<16; y++){
3982 const int index= 4*(y&3) + 64*(y>>2);
3983 for(x=0; x<16; x++){
3984 h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++);
3988 const int index= 256 + 4*(y&3) + 32*(y>>2);
3990 h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++);
3994 const int index= 256 + 64 + 4*(y&3) + 32*(y>>2);
3996 h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++);
4000 skip_bits(&s->gb, 384); //FIXME check /fix the bitstream readers
4002 //FIXME deblock filter, non_zero_count_cache init ...
4003 memset(h->non_zero_count[mb_xy], 16, 16);
4004 s->current_picture.qscale_table[mb_xy]= s->qscale;
4009 fill_caches(h, mb_type, 0);
4012 if(IS_INTRA(mb_type)){
4013 // init_top_left_availability(h);
4014 if(IS_INTRA4x4(mb_type)){
4017 // fill_intra4x4_pred_table(h);
4018 for(i=0; i<16; i++){
4019 const int mode_coded= !get_bits1(&s->gb);
4020 const int predicted_mode= pred_intra_mode(h, i);
4024 const int rem_mode= get_bits(&s->gb, 3);
4025 if(rem_mode<predicted_mode)
4030 mode= predicted_mode;
4033 h->intra4x4_pred_mode_cache[ scan8[i] ] = mode;
4035 write_back_intra_pred_mode(h);
4036 if( check_intra4x4_pred_mode(h) < 0)
4039 h->intra16x16_pred_mode= check_intra_pred_mode(h, h->intra16x16_pred_mode);
4040 if(h->intra16x16_pred_mode < 0)
4043 h->chroma_pred_mode= get_ue_golomb(&s->gb);
4045 h->chroma_pred_mode= check_intra_pred_mode(h, h->chroma_pred_mode);
4046 if(h->chroma_pred_mode < 0)
4048 }else if(partition_count==4){
4049 int i, j, sub_partition_count[4], list, ref[2][4];
4051 if(h->slice_type == B_TYPE){
4053 h->sub_mb_type[i]= get_ue_golomb(&s->gb);
4054 if(h->sub_mb_type[i] >=13){
4055 av_log(h->s.avctx, AV_LOG_ERROR, "B sub_mb_type %d out of range at %d %d\n", h->sub_mb_type[i], s->mb_x, s->mb_y);
4058 sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
4059 h->sub_mb_type[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].type;
4061 if( IS_DIRECT(h->sub_mb_type[0]) || IS_DIRECT(h->sub_mb_type[1])
4062 || IS_DIRECT(h->sub_mb_type[2]) || IS_DIRECT(h->sub_mb_type[3]))
4063 pred_direct_motion(h, &mb_type);
4065 assert(h->slice_type == P_TYPE || h->slice_type == SP_TYPE); //FIXME SP correct ?
4067 h->sub_mb_type[i]= get_ue_golomb(&s->gb);
4068 if(h->sub_mb_type[i] >=4){
4069 av_log(h->s.avctx, AV_LOG_ERROR, "P sub_mb_type %d out of range at %d %d\n", h->sub_mb_type[i], s->mb_x, s->mb_y);
4072 sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
4073 h->sub_mb_type[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].type;
4077 for(list=0; list<2; list++){
4078 const int ref_count= IS_REF0(mb_type) ? 1 : h->ref_count[list];
4079 if(ref_count == 0) continue;
4081 if(IS_DIRECT(h->sub_mb_type[i])) continue;
4082 if(IS_DIR(h->sub_mb_type[i], 0, list)){
4083 ref[list][i] = get_te0_golomb(&s->gb, ref_count); //FIXME init to 0 before and skip?
4091 for(list=0; list<2; list++){
4092 const int ref_count= IS_REF0(mb_type) ? 1 : h->ref_count[list];
4093 if(ref_count == 0) continue;
4096 if(IS_DIRECT(h->sub_mb_type[i])) continue;
4097 h->ref_cache[list][ scan8[4*i] ]=h->ref_cache[list][ scan8[4*i]+1 ]=
4098 h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
4100 if(IS_DIR(h->sub_mb_type[i], 0, list)){
4101 const int sub_mb_type= h->sub_mb_type[i];
4102 const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
4103 for(j=0; j<sub_partition_count[i]; j++){
4105 const int index= 4*i + block_width*j;
4106 int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
4107 pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mx, &my);
4108 mx += get_se_golomb(&s->gb);
4109 my += get_se_golomb(&s->gb);
4110 tprintf("final mv:%d %d\n", mx, my);
4112 if(IS_SUB_8X8(sub_mb_type)){
4113 mv_cache[ 0 ][0]= mv_cache[ 1 ][0]=
4114 mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
4115 mv_cache[ 0 ][1]= mv_cache[ 1 ][1]=
4116 mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;
4117 }else if(IS_SUB_8X4(sub_mb_type)){
4118 mv_cache[ 0 ][0]= mv_cache[ 1 ][0]= mx;
4119 mv_cache[ 0 ][1]= mv_cache[ 1 ][1]= my;
4120 }else if(IS_SUB_4X8(sub_mb_type)){
4121 mv_cache[ 0 ][0]= mv_cache[ 8 ][0]= mx;
4122 mv_cache[ 0 ][1]= mv_cache[ 8 ][1]= my;
4124 assert(IS_SUB_4X4(sub_mb_type));
4125 mv_cache[ 0 ][0]= mx;
4126 mv_cache[ 0 ][1]= my;
4130 uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];
4136 }else if(IS_DIRECT(mb_type)){
4137 pred_direct_motion(h, &mb_type);
4138 s->current_picture.mb_type[mb_xy]= mb_type;
4140 int list, mx, my, i;
4141 //FIXME we should set ref_idx_l? to 0 if we use that later ...
4142 if(IS_16X16(mb_type)){
4143 for(list=0; list<2; list++){
4144 if(h->ref_count[list]>0){
4145 if(IS_DIR(mb_type, 0, list)){
4146 const int val= get_te0_golomb(&s->gb, h->ref_count[list]);
4147 fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, val, 1);
4151 for(list=0; list<2; list++){
4152 if(IS_DIR(mb_type, 0, list)){
4153 pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mx, &my);
4154 mx += get_se_golomb(&s->gb);
4155 my += get_se_golomb(&s->gb);
4156 tprintf("final mv:%d %d\n", mx, my);
4158 fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);
4162 else if(IS_16X8(mb_type)){
4163 for(list=0; list<2; list++){
4164 if(h->ref_count[list]>0){
4166 if(IS_DIR(mb_type, i, list)){
4167 const int val= get_te0_golomb(&s->gb, h->ref_count[list]);
4168 fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, val, 1);
4169 }else // needed only for mixed refs (e.g. B_L0_L1_16x8)
4170 fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (LIST_NOT_USED&0xFF), 1);
4174 for(list=0; list<2; list++){
4176 if(IS_DIR(mb_type, i, list)){
4177 pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mx, &my);
4178 mx += get_se_golomb(&s->gb);
4179 my += get_se_golomb(&s->gb);
4180 tprintf("final mv:%d %d\n", mx, my);
4182 fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);
4184 fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);
4188 assert(IS_8X16(mb_type));
4189 for(list=0; list<2; list++){
4190 if(h->ref_count[list]>0){
4192 if(IS_DIR(mb_type, i, list)){ //FIXME optimize
4193 const int val= get_te0_golomb(&s->gb, h->ref_count[list]);
4194 fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, val, 1);
4195 }else // needed only for mixed refs
4196 fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (LIST_NOT_USED&0xFF), 1);
4200 for(list=0; list<2; list++){
4202 if(IS_DIR(mb_type, i, list)){
4203 pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mx, &my);
4204 mx += get_se_golomb(&s->gb);
4205 my += get_se_golomb(&s->gb);
4206 tprintf("final mv:%d %d\n", mx, my);
4208 fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);
4210 fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);
4216 if(IS_INTER(mb_type))
4217 write_back_motion(h, mb_type);
4219 if(!IS_INTRA16x16(mb_type)){
4220 cbp= get_ue_golomb(&s->gb);
4222 av_log(h->s.avctx, AV_LOG_ERROR, "cbp too large (%d) at %d %d\n", cbp, s->mb_x, s->mb_y);
4226 if(IS_INTRA4x4(mb_type))
4227 cbp= golomb_to_intra4x4_cbp[cbp];
4229 cbp= golomb_to_inter_cbp[cbp];
4232 if(cbp || IS_INTRA16x16(mb_type)){
4233 int i8x8, i4x4, chroma_idx;
4234 int chroma_qp, dquant;
4235 GetBitContext *gb= IS_INTRA(mb_type) ? h->intra_gb_ptr : h->inter_gb_ptr;
4236 const uint8_t *scan, *dc_scan;
4238 // fill_non_zero_count_cache(h);
4240 if(IS_INTERLACED(mb_type)){
4242 dc_scan= luma_dc_field_scan;
4245 dc_scan= luma_dc_zigzag_scan;
4248 dquant= get_se_golomb(&s->gb);
4250 if( dquant > 25 || dquant < -26 ){
4251 av_log(h->s.avctx, AV_LOG_ERROR, "dquant out of range (%d) at %d %d\n", dquant, s->mb_x, s->mb_y);
4255 s->qscale += dquant;
4256 if(((unsigned)s->qscale) > 51){
4257 if(s->qscale<0) s->qscale+= 52;
4258 else s->qscale-= 52;
4261 h->chroma_qp= chroma_qp= get_chroma_qp(h, s->qscale);
4262 if(IS_INTRA16x16(mb_type)){
4263 if( decode_residual(h, h->intra_gb_ptr, h->mb, LUMA_DC_BLOCK_INDEX, dc_scan, s->qscale, 16) < 0){
4264 return -1; //FIXME continue if partotioned and other retirn -1 too
4267 assert((cbp&15) == 0 || (cbp&15) == 15);
4270 for(i8x8=0; i8x8<4; i8x8++){
4271 for(i4x4=0; i4x4<4; i4x4++){
4272 const int index= i4x4 + 4*i8x8;
4273 if( decode_residual(h, h->intra_gb_ptr, h->mb + 16*index, index, scan + 1, s->qscale, 15) < 0 ){
4279 fill_rectangle(&h->non_zero_count_cache[scan8[0]], 4, 4, 8, 0, 1);
4282 for(i8x8=0; i8x8<4; i8x8++){
4283 if(cbp & (1<<i8x8)){
4284 for(i4x4=0; i4x4<4; i4x4++){
4285 const int index= i4x4 + 4*i8x8;
4287 if( decode_residual(h, gb, h->mb + 16*index, index, scan, s->qscale, 16) <0 ){
4292 uint8_t * const nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ];
4293 nnz[0] = nnz[1] = nnz[8] = nnz[9] = 0;
4299 for(chroma_idx=0; chroma_idx<2; chroma_idx++)
4300 if( decode_residual(h, gb, h->mb + 256 + 16*4*chroma_idx, CHROMA_DC_BLOCK_INDEX, chroma_dc_scan, chroma_qp, 4) < 0){
4306 for(chroma_idx=0; chroma_idx<2; chroma_idx++){
4307 for(i4x4=0; i4x4<4; i4x4++){
4308 const int index= 16 + 4*chroma_idx + i4x4;
4309 if( decode_residual(h, gb, h->mb + 16*index, index, scan + 1, chroma_qp, 15) < 0){
4315 uint8_t * const nnz= &h->non_zero_count_cache[0];
4316 nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
4317 nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
4320 uint8_t * const nnz= &h->non_zero_count_cache[0];
4321 fill_rectangle(&nnz[scan8[0]], 4, 4, 8, 0, 1);
4322 nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
4323 nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
4325 s->current_picture.qscale_table[mb_xy]= s->qscale;
4326 write_back_non_zero_count(h);
4331 static int decode_cabac_intra_mb_type(H264Context *h, int ctx_base, int intra_slice) {
4332 uint8_t *state= &h->cabac_state[ctx_base];
4336 MpegEncContext * const s = &h->s;
4337 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
4339 if( s->mb_x > 0 && !IS_INTRA4x4( s->current_picture.mb_type[mb_xy-1] ) )
4341 if( s->mb_y > 0 && !IS_INTRA4x4( s->current_picture.mb_type[mb_xy-s->mb_stride] ) )
4343 if( get_cabac( &h->cabac, &state[ctx] ) == 0 )
4344 return 0; /* I4x4 */
4347 if( get_cabac( &h->cabac, &state[0] ) == 0 )
4348 return 0; /* I4x4 */
4351 if( get_cabac_terminate( &h->cabac ) )
4352 return 25; /* PCM */
4354 mb_type = 1; /* I16x16 */
4355 if( get_cabac( &h->cabac, &state[1] ) )
4356 mb_type += 12; /* cbp_luma != 0 */
4358 if( get_cabac( &h->cabac, &state[2] ) ) {
4359 if( get_cabac( &h->cabac, &state[2+intra_slice] ) )
4360 mb_type += 4 * 2; /* cbp_chroma == 2 */
4362 mb_type += 4 * 1; /* cbp_chroma == 1 */
4364 if( get_cabac( &h->cabac, &state[3+intra_slice] ) )
4366 if( get_cabac( &h->cabac, &state[3+2*intra_slice] ) )
4371 static int decode_cabac_mb_type( H264Context *h ) {
4372 MpegEncContext * const s = &h->s;
4374 if( h->slice_type == I_TYPE ) {
4375 return decode_cabac_intra_mb_type(h, 3, 1);
4376 } else if( h->slice_type == P_TYPE ) {
4377 if( get_cabac( &h->cabac, &h->cabac_state[14] ) == 0 ) {
4379 if( get_cabac( &h->cabac, &h->cabac_state[15] ) == 0 ) {
4380 if( get_cabac( &h->cabac, &h->cabac_state[16] ) == 0 )
4381 return 0; /* P_L0_D16x16; */
4383 return 3; /* P_8x8; */
4385 if( get_cabac( &h->cabac, &h->cabac_state[17] ) == 0 )
4386 return 2; /* P_L0_D8x16; */
4388 return 1; /* P_L0_D16x8; */
4391 return decode_cabac_intra_mb_type(h, 17, 0) + 5;
4393 } else if( h->slice_type == B_TYPE ) {
4394 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
4398 if( s->mb_x > 0 && !IS_SKIP( s->current_picture.mb_type[mb_xy-1] )
4399 && !IS_DIRECT( s->current_picture.mb_type[mb_xy-1] ) )
4401 if( s->mb_y > 0 && !IS_SKIP( s->current_picture.mb_type[mb_xy-s->mb_stride] )
4402 && !IS_DIRECT( s->current_picture.mb_type[mb_xy-s->mb_stride] ) )
4405 if( !get_cabac( &h->cabac, &h->cabac_state[27+ctx] ) )
4406 return 0; /* B_Direct_16x16 */
4408 if( !get_cabac( &h->cabac, &h->cabac_state[27+3] ) ) {
4409 return 1 + get_cabac( &h->cabac, &h->cabac_state[27+5] ); /* B_L[01]_16x16 */
4412 bits = get_cabac( &h->cabac, &h->cabac_state[27+4] ) << 3;
4413 bits|= get_cabac( &h->cabac, &h->cabac_state[27+5] ) << 2;
4414 bits|= get_cabac( &h->cabac, &h->cabac_state[27+5] ) << 1;
4415 bits|= get_cabac( &h->cabac, &h->cabac_state[27+5] );
4417 return bits + 3; /* B_Bi_16x16 through B_L1_L0_16x8 */
4418 else if( bits == 13 ) {
4419 return decode_cabac_intra_mb_type(h, 32, 0) + 23;
4420 } else if( bits == 14 )
4421 return 11; /* B_L1_L0_8x16 */
4422 else if( bits == 15 )
4423 return 22; /* B_8x8 */
4425 bits= ( bits<<1 ) | get_cabac( &h->cabac, &h->cabac_state[27+5] );
4426 return bits - 4; /* B_L0_Bi_* through B_Bi_Bi_* */
4428 /* TODO SI/SP frames? */
4433 static int decode_cabac_mb_skip( H264Context *h) {
4434 MpegEncContext * const s = &h->s;
4435 const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
4436 const int mba_xy = mb_xy - 1;
4437 const int mbb_xy = mb_xy - s->mb_stride;
4440 if( s->mb_x > 0 && !IS_SKIP( s->current_picture.mb_type[mba_xy] ) )
4442 if( s->mb_y > 0 && !IS_SKIP( s->current_picture.mb_type[mbb_xy] ) )
4445 if( h->slice_type == P_TYPE || h->slice_type == SP_TYPE)
4446 return get_cabac( &h->cabac, &h->cabac_state[11+ctx] );
4448 return get_cabac( &h->cabac, &h->cabac_state[24+ctx] );
4451 static int decode_cabac_mb_intra4x4_pred_mode( H264Context *h, int pred_mode ) {
4454 if( get_cabac( &h->cabac, &h->cabac_state[68] ) )
4457 if( get_cabac( &h->cabac, &h->cabac_state[69] ) )
4459 if( get_cabac( &h->cabac, &h->cabac_state[69] ) )
4461 if( get_cabac( &h->cabac, &h->cabac_state[69] ) )
4463 if( mode >= pred_mode )
4469 static int decode_cabac_mb_chroma_pre_mode( H264Context *h) {
4470 MpegEncContext * const s = &h->s;
4471 const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
4472 const int mba_xy = mb_xy - 1;
4473 const int mbb_xy = mb_xy - s->mb_stride;
4477 /* No need to test for IS_INTRA4x4 and IS_INTRA16x16, as we set chroma_pred_mode_table to 0 */
4478 if( s->mb_x > 0 && h->chroma_pred_mode_table[mba_xy] != 0 )
4481 if( s->mb_y > 0 && h->chroma_pred_mode_table[mbb_xy] != 0 )
4484 if( get_cabac( &h->cabac, &h->cabac_state[64+ctx] ) == 0 )
4487 if( get_cabac( &h->cabac, &h->cabac_state[64+3] ) == 0 )
4489 if( get_cabac( &h->cabac, &h->cabac_state[64+3] ) == 0 )
4495 static const uint8_t block_idx_x[16] = {
4496 0, 1, 0, 1, 2, 3, 2, 3, 0, 1, 0, 1, 2, 3, 2, 3
4498 static const uint8_t block_idx_y[16] = {
4499 0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 3, 3, 2, 2, 3, 3
4501 static const uint8_t block_idx_xy[4][4] = {
4508 static int decode_cabac_mb_cbp_luma( H264Context *h) {
4509 MpegEncContext * const s = &h->s;
4510 const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
4515 h->cbp_table[mb_xy] = 0; /* FIXME aaahahahah beurk */
4517 for( i8x8 = 0; i8x8 < 4; i8x8++ ) {
4523 x = block_idx_x[4*i8x8];
4524 y = block_idx_y[4*i8x8];
4528 else if( s->mb_x > 0 )
4533 else if( s->mb_y > 0 )
4534 mbb_xy = mb_xy - s->mb_stride;
4536 /* No need to test for skip as we put 0 for skip block */
4538 int i8x8a = block_idx_xy[(x-1)&0x03][y]/4;
4539 if( ((h->cbp_table[mba_xy] >> i8x8a)&0x01) == 0 )
4544 int i8x8b = block_idx_xy[x][(y-1)&0x03]/4;
4545 if( ((h->cbp_table[mbb_xy] >> i8x8b)&0x01) == 0 )
4549 if( get_cabac( &h->cabac, &h->cabac_state[73 + ctx] ) ) {
4551 h->cbp_table[mb_xy] = cbp; /* FIXME aaahahahah beurk */
4556 static int decode_cabac_mb_cbp_chroma( H264Context *h) {
4560 cbp_a = (h->left_cbp>>4)&0x03;
4561 cbp_b = (h-> top_cbp>>4)&0x03;
4564 if( cbp_a > 0 ) ctx++;
4565 if( cbp_b > 0 ) ctx += 2;
4566 if( get_cabac( &h->cabac, &h->cabac_state[77 + ctx] ) == 0 )
4570 if( cbp_a == 2 ) ctx++;
4571 if( cbp_b == 2 ) ctx += 2;
4572 return 1 + get_cabac( &h->cabac, &h->cabac_state[77 + ctx] );
4574 static int decode_cabac_mb_dqp( H264Context *h) {
4575 MpegEncContext * const s = &h->s;
4581 mbn_xy = s->mb_x + s->mb_y*s->mb_stride - 1;
4583 mbn_xy = s->mb_width - 1 + (s->mb_y-1)*s->mb_stride;
4585 if( mbn_xy >= 0 && h->last_qscale_diff != 0 && ( IS_INTRA16x16(s->current_picture.mb_type[mbn_xy] ) || (h->cbp_table[mbn_xy]&0x3f) ) )
4588 while( get_cabac( &h->cabac, &h->cabac_state[60 + ctx] ) ) {
4599 return -(val + 1)/2;
4601 static int decode_cabac_p_mb_sub_type( H264Context *h ) {
4602 if( get_cabac( &h->cabac, &h->cabac_state[21] ) )
4604 if( !get_cabac( &h->cabac, &h->cabac_state[22] ) )
4606 if( get_cabac( &h->cabac, &h->cabac_state[23] ) )
4610 static int decode_cabac_b_mb_sub_type( H264Context *h ) {
4612 if( !get_cabac( &h->cabac, &h->cabac_state[36] ) )
4613 return 0; /* B_Direct_8x8 */
4614 if( !get_cabac( &h->cabac, &h->cabac_state[37] ) )
4615 return 1 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L0_8x8, B_L1_8x8 */
4617 if( get_cabac( &h->cabac, &h->cabac_state[38] ) ) {
4618 if( get_cabac( &h->cabac, &h->cabac_state[39] ) )
4619 return 11 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L1_4x4, B_Bi_4x4 */
4622 type += 2*get_cabac( &h->cabac, &h->cabac_state[39] );
4623 type += get_cabac( &h->cabac, &h->cabac_state[39] );
4627 static int decode_cabac_mb_ref( H264Context *h, int list, int n ) {
4628 int refa = h->ref_cache[list][scan8[n] - 1];
4629 int refb = h->ref_cache[list][scan8[n] - 8];
4633 if( h->slice_type == B_TYPE) {
4634 if( refa > 0 && !h->direct_cache[scan8[n] - 1] )
4636 if( refb > 0 && !h->direct_cache[scan8[n] - 8] )
4645 while( get_cabac( &h->cabac, &h->cabac_state[54+ctx] ) ) {
4655 static int decode_cabac_mb_mvd( H264Context *h, int list, int n, int l ) {
4656 int amvd = abs( h->mvd_cache[list][scan8[n] - 1][l] ) +
4657 abs( h->mvd_cache[list][scan8[n] - 8][l] );
4658 int ctxbase = (l == 0) ? 40 : 47;
4663 else if( amvd > 32 )
4668 if(!get_cabac(&h->cabac, &h->cabac_state[ctxbase+ctx]))
4673 while( mvd < 9 && get_cabac( &h->cabac, &h->cabac_state[ctxbase+ctx] ) ) {
4681 while( get_cabac_bypass( &h->cabac ) ) {
4686 if( get_cabac_bypass( &h->cabac ) )
4690 if( get_cabac_bypass( &h->cabac ) ) return -mvd;
4694 static int inline get_cabac_cbf_ctx( H264Context *h, int cat, int idx ) {
4699 nza = h->left_cbp&0x100;
4700 nzb = h-> top_cbp&0x100;
4701 } else if( cat == 1 || cat == 2 ) {
4702 nza = h->non_zero_count_cache[scan8[idx] - 1];
4703 nzb = h->non_zero_count_cache[scan8[idx] - 8];
4704 } else if( cat == 3 ) {
4705 nza = (h->left_cbp>>(6+idx))&0x01;
4706 nzb = (h-> top_cbp>>(6+idx))&0x01;
4709 nza = h->non_zero_count_cache[scan8[16+idx] - 1];
4710 nzb = h->non_zero_count_cache[scan8[16+idx] - 8];
4719 return ctx + 4 * cat;
4722 static int inline decode_cabac_residual( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, int qp, int max_coeff) {
4723 const int mb_xy = h->s.mb_x + h->s.mb_y*h->s.mb_stride;
4724 const uint16_t *qmul= dequant_coeff[qp];
4725 static const int significant_coeff_flag_offset[5] = { 0, 15, 29, 44, 47 };
4726 static const int coeff_abs_level_m1_offset[5] = {227+ 0, 227+10, 227+20, 227+30, 227+39 };
4731 int coeff_count = 0;
4734 int abslevelgt1 = 0;
4736 /* cat: 0-> DC 16x16 n = 0
4737 * 1-> AC 16x16 n = luma4x4idx
4738 * 2-> Luma4x4 n = luma4x4idx
4739 * 3-> DC Chroma n = iCbCr
4740 * 4-> AC Chroma n = 4 * iCbCr + chroma4x4idx
4743 /* read coded block flag */
4744 if( get_cabac( &h->cabac, &h->cabac_state[85 + get_cabac_cbf_ctx( h, cat, n ) ] ) == 0 ) {
4745 if( cat == 1 || cat == 2 )
4746 h->non_zero_count_cache[scan8[n]] = 0;
4748 h->non_zero_count_cache[scan8[16+n]] = 0;
4753 for(last= 0; last < max_coeff - 1; last++) {
4754 if( get_cabac( &h->cabac, &h->cabac_state[105+significant_coeff_flag_offset[cat]+last] )) {
4755 index[coeff_count++] = last;
4756 if( get_cabac( &h->cabac, &h->cabac_state[166+significant_coeff_flag_offset[cat]+last] ) ) {
4762 if( last == max_coeff -1 ) {
4763 index[coeff_count++] = last;
4765 assert(coeff_count > 0);
4768 h->cbp_table[mb_xy] |= 0x100;
4769 else if( cat == 1 || cat == 2 )
4770 h->non_zero_count_cache[scan8[n]] = coeff_count;
4772 h->cbp_table[mb_xy] |= 0x40 << n;
4775 h->non_zero_count_cache[scan8[16+n]] = coeff_count;
4778 for( i = coeff_count - 1; i >= 0; i-- ) {
4779 int ctx = (abslevelgt1 != 0 ? 0 : FFMIN( 4, abslevel1 )) + coeff_abs_level_m1_offset[cat];
4780 int j= scantable[index[i]];
4782 if( get_cabac( &h->cabac, &h->cabac_state[ctx] ) == 0 ) {
4783 if( cat == 0 || cat == 3 ) {
4784 if( get_cabac_bypass( &h->cabac ) ) block[j] = -1;
4787 if( get_cabac_bypass( &h->cabac ) ) block[j] = -qmul[j];
4788 else block[j] = qmul[j];
4794 ctx = 5 + FFMIN( 4, abslevelgt1 ) + coeff_abs_level_m1_offset[cat];
4795 while( coeff_abs < 15 && get_cabac( &h->cabac, &h->cabac_state[ctx] ) ) {
4799 if( coeff_abs >= 15 ) {
4801 while( get_cabac_bypass( &h->cabac ) ) {
4802 coeff_abs += 1 << j;
4807 if( get_cabac_bypass( &h->cabac ) )
4808 coeff_abs += 1 << j ;
4812 if( cat == 0 || cat == 3 ) {
4813 if( get_cabac_bypass( &h->cabac ) ) block[j] = -coeff_abs;
4814 else block[j] = coeff_abs;
4816 if( get_cabac_bypass( &h->cabac ) ) block[j] = -coeff_abs * qmul[j];
4817 else block[j] = coeff_abs * qmul[j];
4827 * decodes a macroblock
4828 * @returns 0 if ok, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
4830 static int decode_mb_cabac(H264Context *h) {
4831 MpegEncContext * const s = &h->s;
4832 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
4833 int mb_type, partition_count, cbp = 0;
4835 s->dsp.clear_blocks(h->mb); //FIXME avoid if allready clear (move after skip handlong?)
4837 if( h->sps.mb_aff ) {
4838 av_log( h->s.avctx, AV_LOG_ERROR, "Fields not supported with CABAC\n" );
4842 tprintf("pic:%d mb:%d/%d\n", h->frame_num, s->mb_x, s->mb_y);
4843 if( h->slice_type != I_TYPE && h->slice_type != SI_TYPE ) {
4844 /* read skip flags */
4845 if( decode_cabac_mb_skip( h ) ) {
4848 h->cbp_table[mb_xy] = 0;
4849 h->chroma_pred_mode_table[mb_xy] = 0;
4850 h->last_qscale_diff = 0;
4856 h->prev_mb_skiped = 0;
4858 if( ( mb_type = decode_cabac_mb_type( h ) ) < 0 ) {
4859 av_log( h->s.avctx, AV_LOG_ERROR, "decode_cabac_mb_type failed\n" );
4863 if( h->slice_type == B_TYPE ) {
4865 partition_count= b_mb_type_info[mb_type].partition_count;
4866 mb_type= b_mb_type_info[mb_type].type;
4869 goto decode_intra_mb;
4871 } else if( h->slice_type == P_TYPE ) {
4873 partition_count= p_mb_type_info[mb_type].partition_count;
4874 mb_type= p_mb_type_info[mb_type].type;
4877 goto decode_intra_mb;
4880 assert(h->slice_type == I_TYPE);
4882 partition_count = 0;
4883 cbp= i_mb_type_info[mb_type].cbp;
4884 h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;
4885 mb_type= i_mb_type_info[mb_type].type;
4888 if(h->mb_field_decoding_flag)
4889 mb_type |= MB_TYPE_INTERLACED;
4892 s->current_picture.mb_type[mb_xy]= mb_type;
4893 h->slice_table[ mb_xy ]= h->slice_num;
4895 if(IS_INTRA_PCM(mb_type)) {
4898 h->cbp_table[mb_xy] = 0xf +4*2; //FIXME ?!
4899 h->cbp_table[mb_xy] |= 0x1C0;
4900 h->chroma_pred_mode_table[mb_xy] = 0;
4901 s->current_picture.qscale_table[mb_xy]= s->qscale;
4905 fill_caches(h, mb_type, 0);
4907 if( IS_INTRA( mb_type ) ) {
4908 if( IS_INTRA4x4( mb_type ) ) {
4910 for( i = 0; i < 16; i++ ) {
4911 int pred = pred_intra_mode( h, i );
4912 h->intra4x4_pred_mode_cache[ scan8[i] ] = decode_cabac_mb_intra4x4_pred_mode( h, pred );
4914 //av_log( s->avctx, AV_LOG_ERROR, "i4x4 pred=%d mode=%d\n", pred, h->intra4x4_pred_mode_cache[ scan8[i] ] );
4916 write_back_intra_pred_mode(h);
4917 if( check_intra4x4_pred_mode(h) < 0 ) return -1;
4919 h->intra16x16_pred_mode= check_intra_pred_mode( h, h->intra16x16_pred_mode );
4920 if( h->intra16x16_pred_mode < 0 ) return -1;
4922 h->chroma_pred_mode_table[mb_xy] =
4923 h->chroma_pred_mode = decode_cabac_mb_chroma_pre_mode( h );
4925 h->chroma_pred_mode= check_intra_pred_mode( h, h->chroma_pred_mode );
4926 if( h->chroma_pred_mode < 0 ) return -1;
4927 } else if( partition_count == 4 ) {
4928 int i, j, sub_partition_count[4], list, ref[2][4];
4930 if( h->slice_type == B_TYPE ) {
4931 for( i = 0; i < 4; i++ ) {
4932 h->sub_mb_type[i] = decode_cabac_b_mb_sub_type( h );
4933 sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
4934 h->sub_mb_type[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].type;
4936 if( IS_DIRECT(h->sub_mb_type[0]) || IS_DIRECT(h->sub_mb_type[1])
4937 || IS_DIRECT(h->sub_mb_type[2]) || IS_DIRECT(h->sub_mb_type[3])) {
4938 pred_direct_motion(h, &mb_type);
4939 if( h->ref_count[0] > 1 || h->ref_count[1] > 1 ) {
4940 for( i = 0; i < 4; i++ )
4941 if( IS_DIRECT(h->sub_mb_type[i]) )
4942 fill_rectangle( &h->direct_cache[scan8[4*i]], 2, 2, 8, 1, 1 );
4946 for( i = 0; i < 4; i++ ) {
4947 h->sub_mb_type[i] = decode_cabac_p_mb_sub_type( h );
4948 sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
4949 h->sub_mb_type[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].type;
4953 for( list = 0; list < 2; list++ ) {
4954 if( h->ref_count[list] > 0 ) {
4955 for( i = 0; i < 4; i++ ) {
4956 if(IS_DIRECT(h->sub_mb_type[i])) continue;
4957 if(IS_DIR(h->sub_mb_type[i], 0, list)){
4958 if( h->ref_count[list] > 1 )
4959 ref[list][i] = decode_cabac_mb_ref( h, list, 4*i );
4965 h->ref_cache[list][ scan8[4*i]+1 ]=
4966 h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
4971 for(list=0; list<2; list++){
4973 if(IS_DIRECT(h->sub_mb_type[i])){
4974 fill_rectangle(h->mvd_cache[list][scan8[4*i]], 2, 2, 8, 0, 4);
4977 h->ref_cache[list][ scan8[4*i] ]=h->ref_cache[list][ scan8[4*i]+1 ];
4979 if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
4980 const int sub_mb_type= h->sub_mb_type[i];
4981 const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
4982 for(j=0; j<sub_partition_count[i]; j++){
4985 const int index= 4*i + block_width*j;
4986 int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
4987 int16_t (* mvd_cache)[2]= &h->mvd_cache[list][ scan8[index] ];
4988 pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mpx, &mpy);
4990 mx = mpx + decode_cabac_mb_mvd( h, list, index, 0 );
4991 my = mpy + decode_cabac_mb_mvd( h, list, index, 1 );
4992 tprintf("final mv:%d %d\n", mx, my);
4994 if(IS_SUB_8X8(sub_mb_type)){
4995 mv_cache[ 0 ][0]= mv_cache[ 1 ][0]=
4996 mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
4997 mv_cache[ 0 ][1]= mv_cache[ 1 ][1]=
4998 mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;
5000 mvd_cache[ 0 ][0]= mvd_cache[ 1 ][0]=
5001 mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mx - mpx;
5002 mvd_cache[ 0 ][1]= mvd_cache[ 1 ][1]=
5003 mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= my - mpy;
5004 }else if(IS_SUB_8X4(sub_mb_type)){
5005 mv_cache[ 0 ][0]= mv_cache[ 1 ][0]= mx;
5006 mv_cache[ 0 ][1]= mv_cache[ 1 ][1]= my;
5008 mvd_cache[ 0 ][0]= mvd_cache[ 1 ][0]= mx- mpx;
5009 mvd_cache[ 0 ][1]= mvd_cache[ 1 ][1]= my - mpy;
5010 }else if(IS_SUB_4X8(sub_mb_type)){
5011 mv_cache[ 0 ][0]= mv_cache[ 8 ][0]= mx;
5012 mv_cache[ 0 ][1]= mv_cache[ 8 ][1]= my;
5014 mvd_cache[ 0 ][0]= mvd_cache[ 8 ][0]= mx - mpx;
5015 mvd_cache[ 0 ][1]= mvd_cache[ 8 ][1]= my - mpy;
5017 assert(IS_SUB_4X4(sub_mb_type));
5018 mv_cache[ 0 ][0]= mx;
5019 mv_cache[ 0 ][1]= my;
5021 mvd_cache[ 0 ][0]= mx - mpx;
5022 mvd_cache[ 0 ][1]= my - mpy;
5026 uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];
5027 uint32_t *pd= (uint32_t *)&h->mvd_cache[list][ scan8[4*i] ][0];
5028 p[0] = p[1] = p[8] = p[9] = 0;
5029 pd[0]= pd[1]= pd[8]= pd[9]= 0;
5033 } else if( IS_DIRECT(mb_type) ) {
5034 pred_direct_motion(h, &mb_type);
5035 s->current_picture.mb_type[mb_xy]= mb_type;
5036 fill_rectangle(h->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 4);
5037 fill_rectangle(h->mvd_cache[1][scan8[0]], 4, 4, 8, 0, 4);
5039 int list, mx, my, i, mpx, mpy;
5040 if(IS_16X16(mb_type)){
5041 for(list=0; list<2; list++){
5042 if(IS_DIR(mb_type, 0, list)){
5043 if(h->ref_count[list] > 0 ){
5044 const int ref = h->ref_count[list] > 1 ? decode_cabac_mb_ref( h, list, 0 ) : 0;
5045 fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1);
5049 for(list=0; list<2; list++){
5050 if(IS_DIR(mb_type, 0, list)){
5051 pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mpx, &mpy);
5053 mx = mpx + decode_cabac_mb_mvd( h, list, 0, 0 );
5054 my = mpy + decode_cabac_mb_mvd( h, list, 0, 1 );
5055 tprintf("final mv:%d %d\n", mx, my);
5057 fill_rectangle(h->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx-mpx,my-mpy), 4);
5058 fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);
5062 else if(IS_16X8(mb_type)){
5063 for(list=0; list<2; list++){
5064 if(h->ref_count[list]>0){
5066 if(IS_DIR(mb_type, i, list)){
5067 const int ref= h->ref_count[list] > 1 ? decode_cabac_mb_ref( h, list, 8*i ) : 0;
5068 fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1);
5070 fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (LIST_NOT_USED&0xFF), 1);
5074 for(list=0; list<2; list++){
5076 if(IS_DIR(mb_type, i, list)){
5077 pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mpx, &mpy);
5078 mx = mpx + decode_cabac_mb_mvd( h, list, 8*i, 0 );
5079 my = mpy + decode_cabac_mb_mvd( h, list, 8*i, 1 );
5080 tprintf("final mv:%d %d\n", mx, my);
5082 fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx-mpx,my-mpy), 4);
5083 fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);
5084 }else{ // needed only for mixed refs
5085 fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);
5086 fill_rectangle(h-> mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);
5091 assert(IS_8X16(mb_type));
5092 for(list=0; list<2; list++){
5093 if(h->ref_count[list]>0){
5095 if(IS_DIR(mb_type, i, list)){ //FIXME optimize
5096 const int ref= h->ref_count[list] > 1 ? decode_cabac_mb_ref( h, list, 4*i ) : 0;
5097 fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, ref, 1);
5099 fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (LIST_NOT_USED&0xFF), 1);
5103 for(list=0; list<2; list++){
5105 if(IS_DIR(mb_type, i, list)){
5106 pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mpx, &mpy);
5107 mx = mpx + decode_cabac_mb_mvd( h, list, 4*i, 0 );
5108 my = mpy + decode_cabac_mb_mvd( h, list, 4*i, 1 );
5110 tprintf("final mv:%d %d\n", mx, my);
5111 fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx-mpx,my-mpy), 4);
5112 fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);
5113 }else{ // needed only for mixed refs
5114 fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);
5115 fill_rectangle(h-> mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);
5122 if( IS_INTER( mb_type ) ) {
5123 h->chroma_pred_mode_table[mb_xy] = 0;
5124 write_back_motion( h, mb_type );
5127 if( !IS_INTRA16x16( mb_type ) ) {
5128 cbp = decode_cabac_mb_cbp_luma( h );
5129 cbp |= decode_cabac_mb_cbp_chroma( h ) << 4;
5132 h->cbp_table[mb_xy] = cbp;
5134 if( cbp || IS_INTRA16x16( mb_type ) ) {
5135 const uint8_t *scan, *dc_scan;
5138 if(IS_INTERLACED(mb_type)){
5140 dc_scan= luma_dc_field_scan;
5143 dc_scan= luma_dc_zigzag_scan;
5146 h->last_qscale_diff = dqp = decode_cabac_mb_dqp( h );
5148 if(((unsigned)s->qscale) > 51){
5149 if(s->qscale<0) s->qscale+= 52;
5150 else s->qscale-= 52;
5152 h->chroma_qp = get_chroma_qp(h, s->qscale);
5154 if( IS_INTRA16x16( mb_type ) ) {
5156 //av_log( s->avctx, AV_LOG_ERROR, "INTRA16x16 DC\n" );
5157 if( decode_cabac_residual( h, h->mb, 0, 0, dc_scan, s->qscale, 16) < 0)
5160 for( i = 0; i < 16; i++ ) {
5161 //av_log( s->avctx, AV_LOG_ERROR, "INTRA16x16 AC:%d\n", i );
5162 if( decode_cabac_residual(h, h->mb + 16*i, 1, i, scan + 1, s->qscale, 15) < 0 )
5166 fill_rectangle(&h->non_zero_count_cache[scan8[0]], 4, 4, 8, 0, 1);
5170 for( i8x8 = 0; i8x8 < 4; i8x8++ ) {
5171 if( cbp & (1<<i8x8) ) {
5172 for( i4x4 = 0; i4x4 < 4; i4x4++ ) {
5173 const int index = 4*i8x8 + i4x4;
5174 //av_log( s->avctx, AV_LOG_ERROR, "Luma4x4: %d\n", index );
5175 if( decode_cabac_residual(h, h->mb + 16*index, 2, index, scan, s->qscale, 16) < 0 )
5179 uint8_t * const nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ];
5180 nnz[0] = nnz[1] = nnz[8] = nnz[9] = 0;
5187 for( c = 0; c < 2; c++ ) {
5188 //av_log( s->avctx, AV_LOG_ERROR, "INTRA C%d-DC\n",c );
5189 if( decode_cabac_residual(h, h->mb + 256 + 16*4*c, 3, c, chroma_dc_scan, h->chroma_qp, 4) < 0)
5196 for( c = 0; c < 2; c++ ) {
5197 for( i = 0; i < 4; i++ ) {
5198 const int index = 16 + 4 * c + i;
5199 //av_log( s->avctx, AV_LOG_ERROR, "INTRA C%d-AC %d\n",c, index - 16 );
5200 if( decode_cabac_residual(h, h->mb + 16*index, 4, index - 16, scan + 1, h->chroma_qp, 15) < 0)
5205 uint8_t * const nnz= &h->non_zero_count_cache[0];
5206 nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
5207 nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
5210 uint8_t * const nnz= &h->non_zero_count_cache[0];
5211 fill_rectangle(&nnz[scan8[0]], 4, 4, 8, 0, 1);
5212 nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
5213 nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
5216 s->current_picture.qscale_table[mb_xy]= s->qscale;
5217 write_back_non_zero_count(h);
5223 static void filter_mb_edgev( H264Context *h, uint8_t *pix, int stride, int bS[4], int qp ) {
5225 const int index_a = clip( qp + h->slice_alpha_c0_offset, 0, 51 );
5226 const int alpha = alpha_table[index_a];
5227 const int beta = beta_table[clip( qp + h->slice_beta_offset, 0, 51 )];
5229 for( i = 0; i < 4; i++ ) {
5236 const int tc0 = tc0_table[index_a][bS[i] - 1];
5237 /* 4px edge length */
5238 for( d = 0; d < 4; d++ ) {
5239 const int p0 = pix[-1];
5240 const int p1 = pix[-2];
5241 const int p2 = pix[-3];
5242 const int q0 = pix[0];
5243 const int q1 = pix[1];
5244 const int q2 = pix[2];
5246 if( ABS( p0 - q0 ) < alpha &&
5247 ABS( p1 - p0 ) < beta &&
5248 ABS( q1 - q0 ) < beta ) {
5252 if( ABS( p2 - p0 ) < beta ) {
5253 pix[-2] = p1 + clip( ( p2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( p1 << 1 ) ) >> 1, -tc0, tc0 );
5256 if( ABS( q2 - q0 ) < beta ) {
5257 pix[1] = q1 + clip( ( q2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( q1 << 1 ) ) >> 1, -tc0, tc0 );
5261 i_delta = clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
5262 pix[-1] = clip_uint8( p0 + i_delta ); /* p0' */
5263 pix[0] = clip_uint8( q0 - i_delta ); /* q0' */
5268 /* 4px edge length */
5269 for( d = 0; d < 4; d++ ) {
5270 const int p0 = pix[-1];
5271 const int p1 = pix[-2];
5272 const int p2 = pix[-3];
5274 const int q0 = pix[0];
5275 const int q1 = pix[1];
5276 const int q2 = pix[2];
5278 if( ABS( p0 - q0 ) < alpha &&
5279 ABS( p1 - p0 ) < beta &&
5280 ABS( q1 - q0 ) < beta ) {
5282 if(ABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
5283 if( ABS( p2 - p0 ) < beta)
5285 const int p3 = pix[-4];
5287 pix[-1] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
5288 pix[-2] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
5289 pix[-3] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
5292 pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
5294 if( ABS( q2 - q0 ) < beta)
5296 const int q3 = pix[3];
5298 pix[0] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
5299 pix[1] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
5300 pix[2] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
5303 pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
5307 pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
5308 pix[ 0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
5316 static void filter_mb_edgecv( H264Context *h, uint8_t *pix, int stride, int bS[4], int qp ) {
5318 const int index_a = clip( qp + h->slice_alpha_c0_offset, 0, 51 );
5319 const int alpha = alpha_table[index_a];
5320 const int beta = beta_table[clip( qp + h->slice_beta_offset, 0, 51 )];
5322 for( i = 0; i < 4; i++ ) {
5329 const int tc = tc0_table[index_a][bS[i] - 1] + 1;
5330 /* 2px edge length (because we use same bS than the one for luma) */
5331 for( d = 0; d < 2; d++ ){
5332 const int p0 = pix[-1];
5333 const int p1 = pix[-2];
5334 const int q0 = pix[0];
5335 const int q1 = pix[1];
5337 if( ABS( p0 - q0 ) < alpha &&
5338 ABS( p1 - p0 ) < beta &&
5339 ABS( q1 - q0 ) < beta ) {
5340 const int i_delta = clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
5342 pix[-1] = clip_uint8( p0 + i_delta ); /* p0' */
5343 pix[0] = clip_uint8( q0 - i_delta ); /* q0' */
5344 //tprintf("filter_mb_edgecv i:%d d:%d, qp:%d, indexA:%d, alpha:%d, beta:%d, tc:%d\n# bS:%d -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x]\n", i, d, qp, index_a, alpha, beta, tc, bS[i], pix[-3], p1, p0, q0, q1, pix[2], p1, pix[-1], pix[0], q1);
5349 /* 2px edge length (because we use same bS than the one for luma) */
5350 for( d = 0; d < 2; d++ ){
5351 const int p0 = pix[-1];
5352 const int p1 = pix[-2];
5353 const int q0 = pix[0];
5354 const int q1 = pix[1];
5356 if( ABS( p0 - q0 ) < alpha &&
5357 ABS( p1 - p0 ) < beta &&
5358 ABS( q1 - q0 ) < beta ) {
5360 pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2; /* p0' */
5361 pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2; /* q0' */
5362 //tprintf("filter_mb_edgecv i:%d d:%d\n# bS:4 -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x]\n", i, d, pix[-3], p1, p0, q0, q1, pix[2], p1, pix[-1], pix[0], q1);
5370 static void filter_mb_edgeh( H264Context *h, uint8_t *pix, int stride, int bS[4], int qp ) {
5372 const int index_a = clip( qp + h->slice_alpha_c0_offset, 0, 51 );
5373 const int alpha = alpha_table[index_a];
5374 const int beta = beta_table[clip( qp + h->slice_beta_offset, 0, 51 )];
5375 const int pix_next = stride;
5377 for( i = 0; i < 4; i++ ) {
5384 const int tc0 = tc0_table[index_a][bS[i] - 1];
5385 /* 4px edge length */
5386 for( d = 0; d < 4; d++ ) {
5387 const int p0 = pix[-1*pix_next];
5388 const int p1 = pix[-2*pix_next];
5389 const int p2 = pix[-3*pix_next];
5390 const int q0 = pix[0];
5391 const int q1 = pix[1*pix_next];
5392 const int q2 = pix[2*pix_next];
5394 if( ABS( p0 - q0 ) < alpha &&
5395 ABS( p1 - p0 ) < beta &&
5396 ABS( q1 - q0 ) < beta ) {
5401 if( ABS( p2 - p0 ) < beta ) {
5402 pix[-2*pix_next] = p1 + clip( ( p2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( p1 << 1 ) ) >> 1, -tc0, tc0 );
5405 if( ABS( q2 - q0 ) < beta ) {
5406 pix[pix_next] = q1 + clip( ( q2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( q1 << 1 ) ) >> 1, -tc0, tc0 );
5410 i_delta = clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
5411 pix[-pix_next] = clip_uint8( p0 + i_delta ); /* p0' */
5412 pix[0] = clip_uint8( q0 - i_delta ); /* q0' */
5417 /* 4px edge length */
5418 for( d = 0; d < 4; d++ ) {
5419 const int p0 = pix[-1*pix_next];
5420 const int p1 = pix[-2*pix_next];
5421 const int p2 = pix[-3*pix_next];
5422 const int q0 = pix[0];
5423 const int q1 = pix[1*pix_next];
5424 const int q2 = pix[2*pix_next];
5426 if( ABS( p0 - q0 ) < alpha &&
5427 ABS( p1 - p0 ) < beta &&
5428 ABS( q1 - q0 ) < beta ) {
5430 const int p3 = pix[-4*pix_next];
5431 const int q3 = pix[ 3*pix_next];
5433 if(ABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
5434 if( ABS( p2 - p0 ) < beta) {
5436 pix[-1*pix_next] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
5437 pix[-2*pix_next] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
5438 pix[-3*pix_next] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
5441 pix[-1*pix_next] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
5443 if( ABS( q2 - q0 ) < beta) {
5445 pix[0*pix_next] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
5446 pix[1*pix_next] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
5447 pix[2*pix_next] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
5450 pix[0*pix_next] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
5454 pix[-1*pix_next] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
5455 pix[ 0*pix_next] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
5464 static void filter_mb_edgech( H264Context *h, uint8_t *pix, int stride, int bS[4], int qp ) {
5466 const int index_a = clip( qp + h->slice_alpha_c0_offset, 0, 51 );
5467 const int alpha = alpha_table[index_a];
5468 const int beta = beta_table[clip( qp + h->slice_beta_offset, 0, 51 )];
5469 const int pix_next = stride;
5471 for( i = 0; i < 4; i++ )
5479 int tc = tc0_table[index_a][bS[i] - 1] + 1;
5480 /* 2px edge length (see deblocking_filter_edgecv) */
5481 for( d = 0; d < 2; d++ ) {
5482 const int p0 = pix[-1*pix_next];
5483 const int p1 = pix[-2*pix_next];
5484 const int q0 = pix[0];
5485 const int q1 = pix[1*pix_next];
5487 if( ABS( p0 - q0 ) < alpha &&
5488 ABS( p1 - p0 ) < beta &&
5489 ABS( q1 - q0 ) < beta ) {
5491 int i_delta = clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
5493 pix[-pix_next] = clip_uint8( p0 + i_delta ); /* p0' */
5494 pix[0] = clip_uint8( q0 - i_delta ); /* q0' */
5499 /* 2px edge length (see deblocking_filter_edgecv) */
5500 for( d = 0; d < 2; d++ ) {
5501 const int p0 = pix[-1*pix_next];
5502 const int p1 = pix[-2*pix_next];
5503 const int q0 = pix[0];
5504 const int q1 = pix[1*pix_next];
5506 if( ABS( p0 - q0 ) < alpha &&
5507 ABS( p1 - p0 ) < beta &&
5508 ABS( q1 - q0 ) < beta ) {
5510 pix[-pix_next] = ( 2*p1 + p0 + q1 + 2 ) >> 2; /* p0' */
5511 pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2; /* q0' */
5519 static void filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr) {
5520 MpegEncContext * const s = &h->s;
5521 const int mb_xy= mb_x + mb_y*s->mb_stride;
5522 int linesize, uvlinesize;
5525 /* FIXME Implement deblocking filter for field MB */
5526 if( h->sps.mb_aff ) {
5529 linesize = s->linesize;
5530 uvlinesize = s->uvlinesize;
5532 /* dir : 0 -> vertical edge, 1 -> horizontal edge */
5533 for( dir = 0; dir < 2; dir++ )
5538 /* test picture boundary */
5539 if( ( dir == 0 && mb_x == 0 ) || ( dir == 1 && mb_y == 0 ) ) {
5542 if( 0 == start && 2 == h->deblocking_filter) {
5543 const int mbn_xy = dir == 0 ? mb_xy -1 : mb_xy - s->mb_stride;
5544 if (h->slice_table[mbn_xy] != h->slice_table[mb_xy]) {
5550 for( edge = start; edge < 4; edge++ ) {
5551 /* mbn_xy: neighbour macroblock (how that works for field ?) */
5552 int mbn_xy = edge > 0 ? mb_xy : ( dir == 0 ? mb_xy -1 : mb_xy - s->mb_stride );
5556 if( IS_INTRA( s->current_picture.mb_type[mb_xy] ) ||
5557 IS_INTRA( s->current_picture.mb_type[mbn_xy] ) ) {
5558 bS[0] = bS[1] = bS[2] = bS[3] = ( edge == 0 ? 4 : 3 );
5561 for( i = 0; i < 4; i++ ) {
5562 int x = dir == 0 ? edge : i;
5563 int y = dir == 0 ? i : edge;
5564 int b_idx= 8 + 4 + x + 8*y;
5565 int bn_idx= b_idx - (dir ? 8:1);
5567 if( h->non_zero_count_cache[b_idx] != 0 ||
5568 h->non_zero_count_cache[bn_idx] != 0 ) {
5571 else if( h->slice_type == P_TYPE ) {
5572 if( h->ref_cache[0][b_idx] != h->ref_cache[0][bn_idx] ||
5573 ABS( h->mv_cache[0][b_idx][0] - h->mv_cache[0][bn_idx][0] ) >= 4 ||
5574 ABS( h->mv_cache[0][b_idx][1] - h->mv_cache[0][bn_idx][1] ) >= 4 )
5579 /* FIXME Add support for B frame */
5584 if(bS[0]+bS[1]+bS[2]+bS[3] == 0)
5589 qp = ( s->qscale + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;
5590 //tprintf("filter mb:%d/%d dir:%d edge:%d, QPy:%d, QPc:%d, QPcn:%d\n", mb_x, mb_y, dir, edge, qp, h->chroma_qp, s->current_picture.qscale_table[mbn_xy]);
5592 filter_mb_edgev( h, &img_y[4*edge], linesize, bS, qp );
5593 if( (edge&1) == 0 ) {
5594 int chroma_qp = ( h->chroma_qp +
5595 get_chroma_qp( h, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1;
5596 filter_mb_edgecv( h, &img_cb[2*edge], uvlinesize, bS, chroma_qp );
5597 filter_mb_edgecv( h, &img_cr[2*edge], uvlinesize, bS, chroma_qp );
5600 filter_mb_edgeh( h, &img_y[4*edge*linesize], linesize, bS, qp );
5601 if( (edge&1) == 0 ) {
5602 int chroma_qp = ( h->chroma_qp +
5603 get_chroma_qp( h, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1;
5604 filter_mb_edgech( h, &img_cb[2*edge*uvlinesize], uvlinesize, bS, chroma_qp );
5605 filter_mb_edgech( h, &img_cr[2*edge*uvlinesize], uvlinesize, bS, chroma_qp );
5612 static int decode_slice(H264Context *h){
5613 MpegEncContext * const s = &h->s;
5614 const int part_mask= s->partitioned_frame ? (AC_END|AC_ERROR) : 0x7F;
5618 if( h->pps.cabac ) {
5622 align_get_bits( &s->gb );
5625 ff_init_cabac_states( &h->cabac, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64 );
5626 ff_init_cabac_decoder( &h->cabac,
5627 s->gb.buffer + get_bits_count(&s->gb)/8,
5628 ( s->gb.size_in_bits - get_bits_count(&s->gb) + 7)/8);
5629 /* calculate pre-state */
5630 for( i= 0; i < 399; i++ ) {
5632 if( h->slice_type == I_TYPE )
5633 pre = clip( ((cabac_context_init_I[i][0] * s->qscale) >>4 ) + cabac_context_init_I[i][1], 1, 126 );
5635 pre = clip( ((cabac_context_init_PB[h->cabac_init_idc][i][0] * s->qscale) >>4 ) + cabac_context_init_PB[h->cabac_init_idc][i][1], 1, 126 );
5638 h->cabac_state[i] = 2 * ( 63 - pre ) + 0;
5640 h->cabac_state[i] = 2 * ( pre - 64 ) + 1;
5644 int ret = decode_mb_cabac(h);
5645 int eos = get_cabac_terminate( &h->cabac ); /* End of Slice flag */
5647 if(ret>=0) hl_decode_mb(h);
5649 /* XXX: useless as decode_mb_cabac it doesn't support that ... */
5650 if( ret >= 0 && h->sps.mb_aff ) { //FIXME optimal? or let mb_decode decode 16x32 ?
5653 if(ret>=0) ret = decode_mb_cabac(h);
5654 eos = get_cabac_terminate( &h->cabac );
5660 if( ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 1) {
5661 av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
5662 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);
5666 if( ++s->mb_x >= s->mb_width ) {
5668 ff_draw_horiz_band(s, 16*s->mb_y, 16);
5672 if( eos || s->mb_y >= s->mb_height ) {
5673 tprintf("slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
5674 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);
5678 /* TODO test over-reading in cabac code */
5679 else if( read too much in h->cabac ) {
5680 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);
5688 int ret = decode_mb_cavlc(h);
5690 if(ret>=0) hl_decode_mb(h);
5692 if(ret>=0 && h->sps.mb_aff){ //FIXME optimal? or let mb_decode decode 16x32 ?
5694 ret = decode_mb_cavlc(h);
5696 if(ret>=0) hl_decode_mb(h);
5701 av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
5702 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);
5707 if(++s->mb_x >= s->mb_width){
5709 ff_draw_horiz_band(s, 16*s->mb_y, 16);
5710 if(++s->mb_y >= s->mb_height){
5711 tprintf("slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
5713 if(get_bits_count(&s->gb) == s->gb.size_in_bits ) {
5714 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);
5718 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);
5725 if(get_bits_count(&s->gb) >= s->gb.size_in_bits && s->mb_skip_run<=0){
5726 tprintf("slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
5727 if(get_bits_count(&s->gb) == s->gb.size_in_bits ){
5728 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);
5732 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);
5741 for(;s->mb_y < s->mb_height; s->mb_y++){
5742 for(;s->mb_x < s->mb_width; s->mb_x++){
5743 int ret= decode_mb(h);
5748 fprintf(stderr, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
5749 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);
5754 if(++s->mb_x >= s->mb_width){
5756 if(++s->mb_y >= s->mb_height){
5757 if(get_bits_count(s->gb) == s->gb.size_in_bits){
5758 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);
5762 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);
5769 if(get_bits_count(s->?gb) >= s->gb?.size_in_bits){
5770 if(get_bits_count(s->gb) == s->gb.size_in_bits){
5771 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);
5775 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);
5782 ff_draw_horiz_band(s, 16*s->mb_y, 16);
5785 return -1; //not reached
5788 static inline int decode_vui_parameters(H264Context *h, SPS *sps){
5789 MpegEncContext * const s = &h->s;
5790 int aspect_ratio_info_present_flag, aspect_ratio_idc;
5792 aspect_ratio_info_present_flag= get_bits1(&s->gb);
5794 if( aspect_ratio_info_present_flag ) {
5795 aspect_ratio_idc= get_bits(&s->gb, 8);
5796 if( aspect_ratio_idc == EXTENDED_SAR ) {
5797 sps->sar.num= get_bits(&s->gb, 16);
5798 sps->sar.den= get_bits(&s->gb, 16);
5799 }else if(aspect_ratio_idc < 16){
5800 sps->sar= pixel_aspect[aspect_ratio_idc];
5802 av_log(h->s.avctx, AV_LOG_ERROR, "illegal aspect ratio\n");
5809 // s->avctx->aspect_ratio= sar_width*s->width / (float)(s->height*sar_height);
5811 if(get_bits1(&s->gb)){ /* overscan_info_present_flag */
5812 get_bits1(&s->gb); /* overscan_appropriate_flag */
5815 if(get_bits1(&s->gb)){ /* video_signal_type_present_flag */
5816 get_bits(&s->gb, 3); /* video_format */
5817 get_bits1(&s->gb); /* video_full_range_flag */
5818 if(get_bits1(&s->gb)){ /* colour_description_present_flag */
5819 get_bits(&s->gb, 8); /* colour_primaries */
5820 get_bits(&s->gb, 8); /* transfer_characteristics */
5821 get_bits(&s->gb, 8); /* matrix_coefficients */
5825 if(get_bits1(&s->gb)){ /* chroma_location_info_present_flag */
5826 get_ue_golomb(&s->gb); /* chroma_sample_location_type_top_field */
5827 get_ue_golomb(&s->gb); /* chroma_sample_location_type_bottom_field */
5830 sps->timing_info_present_flag = get_bits1(&s->gb);
5831 if(sps->timing_info_present_flag){
5832 sps->num_units_in_tick = get_bits_long(&s->gb, 32);
5833 sps->time_scale = get_bits_long(&s->gb, 32);
5834 sps->fixed_frame_rate_flag = get_bits1(&s->gb);
5838 | nal_hrd_parameters_present_flag |0 |u(1) |
5839 | if( nal_hrd_parameters_present_flag = = 1) | | |
5840 | hrd_parameters( ) | | |
5841 | vcl_hrd_parameters_present_flag |0 |u(1) |
5842 | if( vcl_hrd_parameters_present_flag = = 1) | | |
5843 | hrd_parameters( ) | | |
5844 | if( ( nal_hrd_parameters_present_flag = = 1 | || | |
5846 |( vcl_hrd_parameters_present_flag = = 1 ) ) | | |
5847 | low_delay_hrd_flag |0 |u(1) |
5848 | bitstream_restriction_flag |0 |u(1) |
5849 | if( bitstream_restriction_flag ) { |0 |u(1) |
5850 | motion_vectors_over_pic_boundaries_flag |0 |u(1) |
5851 | max_bytes_per_pic_denom |0 |ue(v) |
5852 | max_bits_per_mb_denom |0 |ue(v) |
5853 | log2_max_mv_length_horizontal |0 |ue(v) |
5854 | log2_max_mv_length_vertical |0 |ue(v) |
5855 | num_reorder_frames |0 |ue(v) |
5856 | max_dec_frame_buffering |0 |ue(v) |
5863 static inline int decode_seq_parameter_set(H264Context *h){
5864 MpegEncContext * const s = &h->s;
5865 int profile_idc, level_idc;
5869 profile_idc= get_bits(&s->gb, 8);
5870 get_bits1(&s->gb); //constraint_set0_flag
5871 get_bits1(&s->gb); //constraint_set1_flag
5872 get_bits1(&s->gb); //constraint_set2_flag
5873 get_bits1(&s->gb); //constraint_set3_flag
5874 get_bits(&s->gb, 4); // reserved
5875 level_idc= get_bits(&s->gb, 8);
5876 sps_id= get_ue_golomb(&s->gb);
5878 sps= &h->sps_buffer[ sps_id ];
5879 sps->profile_idc= profile_idc;
5880 sps->level_idc= level_idc;
5882 sps->log2_max_frame_num= get_ue_golomb(&s->gb) + 4;
5883 sps->poc_type= get_ue_golomb(&s->gb);
5885 if(sps->poc_type == 0){ //FIXME #define
5886 sps->log2_max_poc_lsb= get_ue_golomb(&s->gb) + 4;
5887 } else if(sps->poc_type == 1){//FIXME #define
5888 sps->delta_pic_order_always_zero_flag= get_bits1(&s->gb);
5889 sps->offset_for_non_ref_pic= get_se_golomb(&s->gb);
5890 sps->offset_for_top_to_bottom_field= get_se_golomb(&s->gb);
5891 sps->poc_cycle_length= get_ue_golomb(&s->gb);
5893 for(i=0; i<sps->poc_cycle_length; i++)
5894 sps->offset_for_ref_frame[i]= get_se_golomb(&s->gb);
5896 if(sps->poc_type > 2){
5897 av_log(h->s.avctx, AV_LOG_ERROR, "illegal POC type %d\n", sps->poc_type);
5901 sps->ref_frame_count= get_ue_golomb(&s->gb);
5902 if(sps->ref_frame_count > MAX_PICTURE_COUNT-2){
5903 av_log(h->s.avctx, AV_LOG_ERROR, "too many reference frames\n");
5905 sps->gaps_in_frame_num_allowed_flag= get_bits1(&s->gb);
5906 sps->mb_width= get_ue_golomb(&s->gb) + 1;
5907 sps->mb_height= get_ue_golomb(&s->gb) + 1;
5908 if((unsigned)sps->mb_width >= INT_MAX/16 || (unsigned)sps->mb_height >= INT_MAX/16 ||
5909 avcodec_check_dimensions(NULL, 16*sps->mb_width, 16*sps->mb_height))
5912 sps->frame_mbs_only_flag= get_bits1(&s->gb);
5913 if(!sps->frame_mbs_only_flag)
5914 sps->mb_aff= get_bits1(&s->gb);
5918 sps->direct_8x8_inference_flag= get_bits1(&s->gb);
5920 sps->crop= get_bits1(&s->gb);
5922 sps->crop_left = get_ue_golomb(&s->gb);
5923 sps->crop_right = get_ue_golomb(&s->gb);
5924 sps->crop_top = get_ue_golomb(&s->gb);
5925 sps->crop_bottom= get_ue_golomb(&s->gb);
5926 if(sps->crop_left || sps->crop_top){
5927 av_log(h->s.avctx, AV_LOG_ERROR, "insane cropping not completly supported, this could look slightly wrong ...\n");
5933 sps->crop_bottom= 0;
5936 sps->vui_parameters_present_flag= get_bits1(&s->gb);
5937 if( sps->vui_parameters_present_flag )
5938 decode_vui_parameters(h, sps);
5940 if(s->avctx->debug&FF_DEBUG_PICT_INFO){
5941 av_log(h->s.avctx, AV_LOG_DEBUG, "sps:%d profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%d/%d/%d/%d %s\n",
5942 sps_id, sps->profile_idc, sps->level_idc,
5944 sps->ref_frame_count,
5945 sps->mb_width, sps->mb_height,
5946 sps->frame_mbs_only_flag ? "FRM" : (sps->mb_aff ? "MB-AFF" : "PIC-AFF"),
5947 sps->direct_8x8_inference_flag ? "8B8" : "",
5948 sps->crop_left, sps->crop_right,
5949 sps->crop_top, sps->crop_bottom,
5950 sps->vui_parameters_present_flag ? "VUI" : ""
5956 static inline int decode_picture_parameter_set(H264Context *h){
5957 MpegEncContext * const s = &h->s;
5958 int pps_id= get_ue_golomb(&s->gb);
5959 PPS *pps= &h->pps_buffer[pps_id];
5961 pps->sps_id= get_ue_golomb(&s->gb);
5962 pps->cabac= get_bits1(&s->gb);
5963 pps->pic_order_present= get_bits1(&s->gb);
5964 pps->slice_group_count= get_ue_golomb(&s->gb) + 1;
5965 if(pps->slice_group_count > 1 ){
5966 pps->mb_slice_group_map_type= get_ue_golomb(&s->gb);
5967 av_log(h->s.avctx, AV_LOG_ERROR, "FMO not supported\n");
5968 switch(pps->mb_slice_group_map_type){
5971 | for( i = 0; i <= num_slice_groups_minus1; i++ ) | | |
5972 | run_length[ i ] |1 |ue(v) |
5977 | for( i = 0; i < num_slice_groups_minus1; i++ ) | | |
5979 | top_left_mb[ i ] |1 |ue(v) |
5980 | bottom_right_mb[ i ] |1 |ue(v) |
5988 | slice_group_change_direction_flag |1 |u(1) |
5989 | slice_group_change_rate_minus1 |1 |ue(v) |
5994 | slice_group_id_cnt_minus1 |1 |ue(v) |
5995 | for( i = 0; i <= slice_group_id_cnt_minus1; i++ | | |
5997 | slice_group_id[ i ] |1 |u(v) |
6002 pps->ref_count[0]= get_ue_golomb(&s->gb) + 1;
6003 pps->ref_count[1]= get_ue_golomb(&s->gb) + 1;
6004 if(pps->ref_count[0] > 32 || pps->ref_count[1] > 32){
6005 av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow (pps)\n");
6009 pps->weighted_pred= get_bits1(&s->gb);
6010 pps->weighted_bipred_idc= get_bits(&s->gb, 2);
6011 pps->init_qp= get_se_golomb(&s->gb) + 26;
6012 pps->init_qs= get_se_golomb(&s->gb) + 26;
6013 pps->chroma_qp_index_offset= get_se_golomb(&s->gb);
6014 pps->deblocking_filter_parameters_present= get_bits1(&s->gb);
6015 pps->constrained_intra_pred= get_bits1(&s->gb);
6016 pps->redundant_pic_cnt_present = get_bits1(&s->gb);
6018 if(s->avctx->debug&FF_DEBUG_PICT_INFO){
6019 av_log(h->s.avctx, AV_LOG_DEBUG, "pps:%d sps:%d %s slice_groups:%d ref:%d/%d %s qp:%d/%d/%d %s %s %s\n",
6020 pps_id, pps->sps_id,
6021 pps->cabac ? "CABAC" : "CAVLC",
6022 pps->slice_group_count,
6023 pps->ref_count[0], pps->ref_count[1],
6024 pps->weighted_pred ? "weighted" : "",
6025 pps->init_qp, pps->init_qs, pps->chroma_qp_index_offset,
6026 pps->deblocking_filter_parameters_present ? "LPAR" : "",
6027 pps->constrained_intra_pred ? "CONSTR" : "",
6028 pps->redundant_pic_cnt_present ? "REDU" : ""
6036 * finds the end of the current frame in the bitstream.
6037 * @return the position of the first byte of the next frame, or -1
6039 static int find_frame_end(H264Context *h, const uint8_t *buf, int buf_size){
6042 ParseContext *pc = &(h->s.parse_context);
6043 //printf("first %02X%02X%02X%02X\n", buf[0], buf[1],buf[2],buf[3]);
6044 // mb_addr= pc->mb_addr - 1;
6046 for(i=0; i<=buf_size; i++){
6047 if((state&0xFFFFFF1F) == 0x101 || (state&0xFFFFFF1F) == 0x102 || (state&0xFFFFFF1F) == 0x105){
6048 tprintf("find_frame_end new startcode = %08x, frame_start_found = %d, pos = %d\n", state, pc->frame_start_found, i);
6049 if(pc->frame_start_found){
6050 // If there isn't one more byte in the buffer
6051 // the test on first_mb_in_slice cannot be done yet
6052 // do it at next call.
6053 if (i >= buf_size) break;
6054 if (buf[i] & 0x80) {
6055 // first_mb_in_slice is 0, probably the first nal of a new
6057 tprintf("find_frame_end frame_end_found, state = %08x, pos = %d\n", state, i);
6059 pc->frame_start_found= 0;
6063 pc->frame_start_found = 1;
6066 state= (state<<8) | buf[i];
6070 return END_NOT_FOUND;
6073 static int h264_parse(AVCodecParserContext *s,
6074 AVCodecContext *avctx,
6075 uint8_t **poutbuf, int *poutbuf_size,
6076 const uint8_t *buf, int buf_size)
6078 H264Context *h = s->priv_data;
6079 ParseContext *pc = &h->s.parse_context;
6082 next= find_frame_end(h, buf, buf_size);
6084 if (ff_combine_frame(pc, next, (uint8_t **)&buf, &buf_size) < 0) {
6090 *poutbuf = (uint8_t *)buf;
6091 *poutbuf_size = buf_size;
6095 static int decode_nal_units(H264Context *h, uint8_t *buf, int buf_size){
6096 MpegEncContext * const s = &h->s;
6097 AVCodecContext * const avctx= s->avctx;
6101 for(i=0; i<32; i++){
6102 printf("%X ", buf[i]);
6114 if(buf_index >= buf_size) break;
6116 for(i = 0; i < h->nal_length_size; i++)
6117 nalsize = (nalsize << 8) | buf[buf_index++];
6119 // start code prefix search
6120 for(; buf_index + 3 < buf_size; buf_index++){
6121 // this should allways succeed in the first iteration
6122 if(buf[buf_index] == 0 && buf[buf_index+1] == 0 && buf[buf_index+2] == 1)
6126 if(buf_index+3 >= buf_size) break;
6131 ptr= decode_nal(h, buf + buf_index, &dst_length, &consumed, h->is_avc ? nalsize : buf_size - buf_index);
6132 if(ptr[dst_length - 1] == 0) dst_length--;
6133 bit_length= 8*dst_length - decode_rbsp_trailing(ptr + dst_length - 1);
6135 if(s->avctx->debug&FF_DEBUG_STARTCODE){
6136 av_log(h->s.avctx, AV_LOG_DEBUG, "NAL %d at %d/%d length %d\n", h->nal_unit_type, buf_index, buf_size, dst_length);
6139 if (h->is_avc && (nalsize != consumed))
6140 av_log(h->s.avctx, AV_LOG_ERROR, "AVC: Consumed only %d bytes instead of %d\n", consumed, nalsize);
6142 buf_index += consumed;
6144 if( s->hurry_up == 1 && h->nal_ref_idc == 0 )
6147 switch(h->nal_unit_type){
6149 idr(h); //FIXME ensure we dont loose some frames if there is reordering
6151 init_get_bits(&s->gb, ptr, bit_length);
6153 h->inter_gb_ptr= &s->gb;
6154 s->data_partitioning = 0;
6156 if(decode_slice_header(h) < 0) return -1;
6157 if(h->redundant_pic_count==0 && s->hurry_up < 5 )
6161 init_get_bits(&s->gb, ptr, bit_length);
6163 h->inter_gb_ptr= NULL;
6164 s->data_partitioning = 1;
6166 if(decode_slice_header(h) < 0) return -1;
6169 init_get_bits(&h->intra_gb, ptr, bit_length);
6170 h->intra_gb_ptr= &h->intra_gb;
6173 init_get_bits(&h->inter_gb, ptr, bit_length);
6174 h->inter_gb_ptr= &h->inter_gb;
6176 if(h->redundant_pic_count==0 && h->intra_gb_ptr && s->data_partitioning && s->hurry_up < 5 )
6182 init_get_bits(&s->gb, ptr, bit_length);
6183 decode_seq_parameter_set(h);
6185 if(s->flags& CODEC_FLAG_LOW_DELAY)
6188 avctx->has_b_frames= !s->low_delay;
6191 init_get_bits(&s->gb, ptr, bit_length);
6193 decode_picture_parameter_set(h);
6196 case NAL_PICTURE_DELIMITER:
6198 case NAL_FILTER_DATA:
6201 av_log(avctx, AV_LOG_ERROR, "Unknown NAL code: %d\n", h->nal_unit_type);
6204 //FIXME move after where irt is set
6205 s->current_picture.pict_type= s->pict_type;
6206 s->current_picture.key_frame= s->pict_type == I_TYPE;
6209 if(!s->current_picture_ptr) return buf_index; //no frame
6211 h->prev_frame_num_offset= h->frame_num_offset;
6212 h->prev_frame_num= h->frame_num;
6213 if(s->current_picture_ptr->reference){
6214 h->prev_poc_msb= h->poc_msb;
6215 h->prev_poc_lsb= h->poc_lsb;
6217 if(s->current_picture_ptr->reference)
6218 execute_ref_pic_marking(h, h->mmco, h->mmco_index);
6228 * retunrs the number of bytes consumed for building the current frame
6230 static int get_consumed_bytes(MpegEncContext *s, int pos, int buf_size){
6231 if(s->flags&CODEC_FLAG_TRUNCATED){
6232 pos -= s->parse_context.last_index;
6233 if(pos<0) pos=0; // FIXME remove (uneeded?)
6237 if(pos==0) pos=1; //avoid infinite loops (i doubt thats needed but ...)
6238 if(pos+10>buf_size) pos=buf_size; // oops ;)
6244 static int decode_frame(AVCodecContext *avctx,
6245 void *data, int *data_size,
6246 uint8_t *buf, int buf_size)
6248 H264Context *h = avctx->priv_data;
6249 MpegEncContext *s = &h->s;
6250 AVFrame *pict = data;
6253 s->flags= avctx->flags;
6254 s->flags2= avctx->flags2;
6256 /* no supplementary picture */
6257 if (buf_size == 0) {
6261 if(s->flags&CODEC_FLAG_TRUNCATED){
6262 int next= find_frame_end(h, buf, buf_size);
6264 if( ff_combine_frame(&s->parse_context, next, &buf, &buf_size) < 0 )
6266 //printf("next:%d buf_size:%d last_index:%d\n", next, buf_size, s->parse_context.last_index);
6269 if(h->is_avc && !h->got_avcC) {
6270 int i, cnt, nalsize;
6271 unsigned char *p = avctx->extradata;
6272 if(avctx->extradata_size < 7) {
6273 av_log(avctx, AV_LOG_ERROR, "avcC too short\n");
6277 av_log(avctx, AV_LOG_ERROR, "Unknown avcC version %d\n", *p);
6280 /* sps and pps in the avcC always have length coded with 2 bytes,
6281 so put a fake nal_length_size = 2 while parsing them */
6282 h->nal_length_size = 2;
6283 // Decode sps from avcC
6284 cnt = *(p+5) & 0x1f; // Number of sps
6286 for (i = 0; i < cnt; i++) {
6287 nalsize = BE_16(p) + 2;
6288 if(decode_nal_units(h, p, nalsize) != nalsize) {
6289 av_log(avctx, AV_LOG_ERROR, "Decoding sps %d from avcC failed\n", i);
6294 // Decode pps from avcC
6295 cnt = *(p++); // Number of pps
6296 for (i = 0; i < cnt; i++) {
6297 nalsize = BE_16(p) + 2;
6298 if(decode_nal_units(h, p, nalsize) != nalsize) {
6299 av_log(avctx, AV_LOG_ERROR, "Decoding pps %d from avcC failed\n", i);
6304 // Now store right nal length size, that will be use to parse all other nals
6305 h->nal_length_size = ((*(((char*)(avctx->extradata))+4))&0x03)+1;
6306 // Do not reparse avcC
6310 if(!h->is_avc && s->avctx->extradata_size && s->picture_number==0){
6311 if(0 < decode_nal_units(h, s->avctx->extradata, s->avctx->extradata_size) )
6315 buf_index=decode_nal_units(h, buf, buf_size);
6319 //FIXME do something with unavailable reference frames
6321 // if(ret==FRAME_SKIPED) return get_consumed_bytes(s, buf_index, buf_size);
6322 if(!s->current_picture_ptr){
6323 av_log(h->s.avctx, AV_LOG_DEBUG, "error, NO frame\n");
6328 //#define DECODE_ORDER
6329 Picture *out = s->current_picture_ptr;
6330 #ifndef DECODE_ORDER
6331 /* Sort B-frames into display order
6332 * FIXME doesn't allow for multiple delayed frames */
6333 Picture *cur = s->current_picture_ptr;
6334 Picture *prev = h->delayed_pic[0];
6337 && (cur->pict_type == B_TYPE
6338 || (!h->sps.gaps_in_frame_num_allowed_flag
6339 && prev && cur->poc - prev->poc > 2))){
6341 s->avctx->has_b_frames = 1;
6342 if(prev && prev->poc > cur->poc)
6343 // too late to display this frame
6347 if(s->low_delay || !prev || cur->pict_type == B_TYPE)
6351 if(s->low_delay || !prev || out == prev){
6352 if(prev && prev->reference == 1)
6353 prev->reference = 0;
6354 h->delayed_pic[0] = cur;
6358 *pict= *(AVFrame*)out;
6361 ff_print_debug_info(s, pict);
6362 assert(pict->data[0]);
6363 //printf("out %d\n", (int)pict->data[0]);
6366 /* Return the Picture timestamp as the frame number */
6367 /* we substract 1 because it is added on utils.c */
6368 avctx->frame_number = s->picture_number - 1;
6371 /* dont output the last pic after seeking */
6372 if(s->last_picture_ptr || s->low_delay)
6373 //Note this isnt a issue as a IDR pic should flush the buffers
6375 *data_size = sizeof(AVFrame);
6376 return get_consumed_bytes(s, buf_index, buf_size);
6379 static inline void fill_mb_avail(H264Context *h){
6380 MpegEncContext * const s = &h->s;
6381 const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
6384 h->mb_avail[0]= s->mb_x && h->slice_table[mb_xy - s->mb_stride - 1] == h->slice_num;
6385 h->mb_avail[1]= h->slice_table[mb_xy - s->mb_stride ] == h->slice_num;
6386 h->mb_avail[2]= s->mb_x+1 < s->mb_width && h->slice_table[mb_xy - s->mb_stride + 1] == h->slice_num;
6392 h->mb_avail[3]= s->mb_x && h->slice_table[mb_xy - 1] == h->slice_num;
6393 h->mb_avail[4]= 1; //FIXME move out
6394 h->mb_avail[5]= 0; //FIXME move out
6400 #define SIZE (COUNT*40)
6406 // int int_temp[10000];
6408 AVCodecContext avctx;
6410 dsputil_init(&dsp, &avctx);
6412 init_put_bits(&pb, temp, SIZE);
6413 printf("testing unsigned exp golomb\n");
6414 for(i=0; i<COUNT; i++){
6416 set_ue_golomb(&pb, i);
6417 STOP_TIMER("set_ue_golomb");
6419 flush_put_bits(&pb);
6421 init_get_bits(&gb, temp, 8*SIZE);
6422 for(i=0; i<COUNT; i++){
6425 s= show_bits(&gb, 24);
6428 j= get_ue_golomb(&gb);
6430 printf("missmatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
6433 STOP_TIMER("get_ue_golomb");
6437 init_put_bits(&pb, temp, SIZE);
6438 printf("testing signed exp golomb\n");
6439 for(i=0; i<COUNT; i++){
6441 set_se_golomb(&pb, i - COUNT/2);
6442 STOP_TIMER("set_se_golomb");
6444 flush_put_bits(&pb);
6446 init_get_bits(&gb, temp, 8*SIZE);
6447 for(i=0; i<COUNT; i++){
6450 s= show_bits(&gb, 24);
6453 j= get_se_golomb(&gb);
6454 if(j != i - COUNT/2){
6455 printf("missmatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
6458 STOP_TIMER("get_se_golomb");
6461 printf("testing 4x4 (I)DCT\n");
6464 uint8_t src[16], ref[16];
6465 uint64_t error= 0, max_error=0;
6467 for(i=0; i<COUNT; i++){
6469 // printf("%d %d %d\n", r1, r2, (r2-r1)*16);
6470 for(j=0; j<16; j++){
6471 ref[j]= random()%255;
6472 src[j]= random()%255;
6475 h264_diff_dct_c(block, src, ref, 4);
6478 for(j=0; j<16; j++){
6479 // printf("%d ", block[j]);
6480 block[j]= block[j]*4;
6481 if(j&1) block[j]= (block[j]*4 + 2)/5;
6482 if(j&4) block[j]= (block[j]*4 + 2)/5;
6486 s->dsp.h264_idct_add(ref, block, 4);
6487 /* for(j=0; j<16; j++){
6488 printf("%d ", ref[j]);
6492 for(j=0; j<16; j++){
6493 int diff= ABS(src[j] - ref[j]);
6496 max_error= FFMAX(max_error, diff);
6499 printf("error=%f max_error=%d\n", ((float)error)/COUNT/16, (int)max_error );
6501 printf("testing quantizer\n");
6502 for(qp=0; qp<52; qp++){
6504 src1_block[i]= src2_block[i]= random()%255;
6508 printf("Testing NAL layer\n");
6510 uint8_t bitstream[COUNT];
6511 uint8_t nal[COUNT*2];
6513 memset(&h, 0, sizeof(H264Context));
6515 for(i=0; i<COUNT; i++){
6523 for(j=0; j<COUNT; j++){
6524 bitstream[j]= (random() % 255) + 1;
6527 for(j=0; j<zeros; j++){
6528 int pos= random() % COUNT;
6529 while(bitstream[pos] == 0){
6538 nal_length= encode_nal(&h, nal, bitstream, COUNT, COUNT*2);
6540 printf("encoding failed\n");
6544 out= decode_nal(&h, nal, &out_length, &consumed, nal_length);
6548 if(out_length != COUNT){
6549 printf("incorrect length %d %d\n", out_length, COUNT);
6553 if(consumed != nal_length){
6554 printf("incorrect consumed length %d %d\n", nal_length, consumed);
6558 if(memcmp(bitstream, out, COUNT)){
6559 printf("missmatch\n");
6564 printf("Testing RBSP\n");
6572 static int decode_end(AVCodecContext *avctx)
6574 H264Context *h = avctx->priv_data;
6575 MpegEncContext *s = &h->s;
6577 free_tables(h); //FIXME cleanup init stuff perhaps
6580 // memset(h, 0, sizeof(H264Context));
6586 AVCodec h264_decoder = {
6590 sizeof(H264Context),
6595 /*CODEC_CAP_DRAW_HORIZ_BAND |*/ CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
6598 AVCodecParser h264_parser = {
6600 sizeof(H264Context),