2 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * @file libavcodec/h264.h
24 * H.264 / AVC / MPEG4 part10 codec.
25 * @author Michael Niedermayer <michaelni@gmx.at>
28 #ifndef AVCODEC_H264_H
29 #define AVCODEC_H264_H
33 #include "mpegvideo.h"
35 #include "rectangle.h"
37 #define interlaced_dct interlaced_dct_is_a_bad_name
38 #define mb_intra mb_intra_is_not_initialized_see_mb_type
40 #define LUMA_DC_BLOCK_INDEX 25
41 #define CHROMA_DC_BLOCK_INDEX 26
43 #define CHROMA_DC_COEFF_TOKEN_VLC_BITS 8
44 #define COEFF_TOKEN_VLC_BITS 8
45 #define TOTAL_ZEROS_VLC_BITS 9
46 #define CHROMA_DC_TOTAL_ZEROS_VLC_BITS 3
47 #define RUN_VLC_BITS 3
48 #define RUN7_VLC_BITS 6
50 #define MAX_SPS_COUNT 32
51 #define MAX_PPS_COUNT 256
53 #define MAX_MMCO_COUNT 66
55 #define MAX_DELAYED_PIC_COUNT 16
57 /* Compiling in interlaced support reduces the speed
58 * of progressive decoding by about 2%. */
59 #define ALLOW_INTERLACE
61 #define ALLOW_NOCHROMA
64 * The maximum number of slices supported by the decoder.
65 * must be a power of 2
69 #ifdef ALLOW_INTERLACE
70 #define MB_MBAFF h->mb_mbaff
71 #define MB_FIELD h->mb_field_decoding_flag
72 #define FRAME_MBAFF h->mb_aff_frame
73 #define FIELD_PICTURE (s->picture_structure != PICT_FRAME)
78 #define FIELD_PICTURE 0
80 #define IS_INTERLACED(mb_type) 0
82 #define FIELD_OR_MBAFF_PICTURE (FRAME_MBAFF || FIELD_PICTURE)
85 #define CHROMA h->sps.chroma_format_idc
91 #define CABAC h->pps.cabac
94 #define EXTENDED_SAR 255
96 #define MB_TYPE_REF0 MB_TYPE_ACPRED //dirty but it fits in 16 bit
97 #define MB_TYPE_8x8DCT 0x01000000
98 #define IS_REF0(a) ((a) & MB_TYPE_REF0)
99 #define IS_8x8DCT(a) ((a) & MB_TYPE_8x8DCT)
102 * Value of Picture.reference when Picture is not a reference picture, but
103 * is held for delayed output.
105 #define DELAYED_PIC_REF 4
123 NAL_AUXILIARY_SLICE=19
130 SEI_BUFFERING_PERIOD = 0, ///< buffering period (H.264, D.1.1)
131 SEI_TYPE_PIC_TIMING = 1, ///< picture timing
132 SEI_TYPE_USER_DATA_UNREGISTERED = 5, ///< unregistered user data
133 SEI_TYPE_RECOVERY_POINT = 6 ///< recovery point (frame # to decoder sync)
137 * pic_struct in picture timing SEI message
140 SEI_PIC_STRUCT_FRAME = 0, ///< 0: %frame
141 SEI_PIC_STRUCT_TOP_FIELD = 1, ///< 1: top field
142 SEI_PIC_STRUCT_BOTTOM_FIELD = 2, ///< 2: bottom field
143 SEI_PIC_STRUCT_TOP_BOTTOM = 3, ///< 3: top field, bottom field, in that order
144 SEI_PIC_STRUCT_BOTTOM_TOP = 4, ///< 4: bottom field, top field, in that order
145 SEI_PIC_STRUCT_TOP_BOTTOM_TOP = 5, ///< 5: top field, bottom field, top field repeated, in that order
146 SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM = 6, ///< 6: bottom field, top field, bottom field repeated, in that order
147 SEI_PIC_STRUCT_FRAME_DOUBLING = 7, ///< 7: %frame doubling
148 SEI_PIC_STRUCT_FRAME_TRIPLING = 8 ///< 8: %frame tripling
152 * Sequence parameter set
158 int chroma_format_idc;
159 int transform_bypass; ///< qpprime_y_zero_transform_bypass_flag
160 int log2_max_frame_num; ///< log2_max_frame_num_minus4 + 4
161 int poc_type; ///< pic_order_cnt_type
162 int log2_max_poc_lsb; ///< log2_max_pic_order_cnt_lsb_minus4
163 int delta_pic_order_always_zero_flag;
164 int offset_for_non_ref_pic;
165 int offset_for_top_to_bottom_field;
166 int poc_cycle_length; ///< num_ref_frames_in_pic_order_cnt_cycle
167 int ref_frame_count; ///< num_ref_frames
168 int gaps_in_frame_num_allowed_flag;
169 int mb_width; ///< pic_width_in_mbs_minus1 + 1
170 int mb_height; ///< pic_height_in_map_units_minus1 + 1
171 int frame_mbs_only_flag;
172 int mb_aff; ///<mb_adaptive_frame_field_flag
173 int direct_8x8_inference_flag;
174 int crop; ///< frame_cropping_flag
175 unsigned int crop_left; ///< frame_cropping_rect_left_offset
176 unsigned int crop_right; ///< frame_cropping_rect_right_offset
177 unsigned int crop_top; ///< frame_cropping_rect_top_offset
178 unsigned int crop_bottom; ///< frame_cropping_rect_bottom_offset
179 int vui_parameters_present_flag;
181 int video_signal_type_present_flag;
183 int colour_description_present_flag;
184 enum AVColorPrimaries color_primaries;
185 enum AVColorTransferCharacteristic color_trc;
186 enum AVColorSpace colorspace;
187 int timing_info_present_flag;
188 uint32_t num_units_in_tick;
190 int fixed_frame_rate_flag;
191 short offset_for_ref_frame[256]; //FIXME dyn aloc?
192 int bitstream_restriction_flag;
193 int num_reorder_frames;
194 int scaling_matrix_present;
195 uint8_t scaling_matrix4[6][16];
196 uint8_t scaling_matrix8[2][64];
197 int nal_hrd_parameters_present_flag;
198 int vcl_hrd_parameters_present_flag;
199 int pic_struct_present_flag;
200 int time_offset_length;
201 int cpb_cnt; ///< See H.264 E.1.2
202 int initial_cpb_removal_delay_length; ///< initial_cpb_removal_delay_length_minus1 +1
203 int cpb_removal_delay_length; ///< cpb_removal_delay_length_minus1 + 1
204 int dpb_output_delay_length; ///< dpb_output_delay_length_minus1 + 1
205 int bit_depth_luma; ///< bit_depth_luma_minus8 + 8
206 int bit_depth_chroma; ///< bit_depth_chroma_minus8 + 8
207 int residual_color_transform_flag; ///< residual_colour_transform_flag
211 * Picture parameter set
215 int cabac; ///< entropy_coding_mode_flag
216 int pic_order_present; ///< pic_order_present_flag
217 int slice_group_count; ///< num_slice_groups_minus1 + 1
218 int mb_slice_group_map_type;
219 unsigned int ref_count[2]; ///< num_ref_idx_l0/1_active_minus1 + 1
220 int weighted_pred; ///< weighted_pred_flag
221 int weighted_bipred_idc;
222 int init_qp; ///< pic_init_qp_minus26 + 26
223 int init_qs; ///< pic_init_qs_minus26 + 26
224 int chroma_qp_index_offset[2];
225 int deblocking_filter_parameters_present; ///< deblocking_filter_parameters_present_flag
226 int constrained_intra_pred; ///< constrained_intra_pred_flag
227 int redundant_pic_cnt_present; ///< redundant_pic_cnt_present_flag
228 int transform_8x8_mode; ///< transform_8x8_mode_flag
229 uint8_t scaling_matrix4[6][16];
230 uint8_t scaling_matrix8[2][64];
231 uint8_t chroma_qp_table[2][64]; ///< pre-scaled (with chroma_qp_index_offset) version of qp_table
236 * Memory management control operation opcode.
238 typedef enum MMCOOpcode{
249 * Memory management control operation.
253 int short_pic_num; ///< pic_num without wrapping (pic_num & max_pic_num)
254 int long_arg; ///< index, pic_num, or num long refs depending on opcode
260 typedef struct H264Context{
264 uint8_t *rbsp_buffer[2];
265 unsigned int rbsp_buffer_size[2];
268 * Used to parse AVC variant of h264
270 int is_avc; ///< this flag is != 0 if codec is avc1
271 int got_avcC; ///< flag used to parse avcC data only once
272 int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
274 int chroma_qp[2]; //QPc
276 int qp_thresh; ///< QP threshold to skip loopfilter
282 int chroma_pred_mode;
283 int intra16x16_pred_mode;
288 int8_t intra4x4_pred_mode_cache[5*8];
289 int8_t (*intra4x4_pred_mode)[8];
291 unsigned int topleft_samples_available;
292 unsigned int top_samples_available;
293 unsigned int topright_samples_available;
294 unsigned int left_samples_available;
295 uint8_t (*top_borders[2])[16+2*8];
296 uint8_t left_border[2*(17+2*9)];
299 * non zero coeff count cache.
300 * is 64 if not available.
302 DECLARE_ALIGNED_8(uint8_t, non_zero_count_cache[6*8]);
303 uint8_t (*non_zero_count)[16];
306 * Motion vector cache.
308 DECLARE_ALIGNED_8(int16_t, mv_cache[2][5*8][2]);
309 DECLARE_ALIGNED_8(int8_t, ref_cache[2][5*8]);
310 #define LIST_NOT_USED -1 //FIXME rename?
311 #define PART_NOT_AVAILABLE -2
314 * is 1 if the specific list MV&references are set to 0,0,-2.
316 int mv_cache_clean[2];
319 * number of neighbors (top and/or left) that used 8x8 dct
321 int neighbor_transform_size;
324 * block_offset[ 0..23] for frame macroblocks
325 * block_offset[24..47] for field macroblocks
327 int block_offset[2*(16+8)];
329 uint32_t *mb2b_xy; //FIXME are these 4 a good idea?
331 int b_stride; //FIXME use s->b4_stride
334 int mb_linesize; ///< may be equal to s->linesize or s->linesize*2, for mbaff
343 int unknown_svq3_flag;
344 int next_slice_index;
346 SPS *sps_buffers[MAX_SPS_COUNT];
347 SPS sps; ///< current sps
349 PPS *pps_buffers[MAX_PPS_COUNT];
353 PPS pps; //FIXME move to Picture perhaps? (->no) do we need that?
355 uint32_t dequant4_buffer[6][52][16];
356 uint32_t dequant8_buffer[2][52][64];
357 uint32_t (*dequant4_coeff[6])[16];
358 uint32_t (*dequant8_coeff[2])[64];
359 int dequant_coeff_pps; ///< reinit tables when pps changes
362 uint16_t *slice_table_base;
363 uint16_t *slice_table; ///< slice_table_base + 2*mb_stride + 1
365 int slice_type_nos; ///< S free slice type (SI/SP are remapped to I/P)
366 int slice_type_fixed;
368 //interlacing specific flags
370 int mb_field_decoding_flag;
371 int mb_mbaff; ///< mb_aff_frame && mb_field_decoding_flag
373 DECLARE_ALIGNED_8(uint16_t, sub_mb_type[4]);
378 int delta_poc_bottom;
381 int prev_poc_msb; ///< poc_msb of the last reference pic for POC type 0
382 int prev_poc_lsb; ///< poc_lsb of the last reference pic for POC type 0
383 int frame_num_offset; ///< for POC type 2
384 int prev_frame_num_offset; ///< for POC type 2
385 int prev_frame_num; ///< frame_num of the last pic for POC type 1/2
388 * frame_num for frames or 2*frame_num+1 for field pics.
393 * max_frame_num or 2*max_frame_num for field pics.
397 //Weighted pred stuff
399 int use_weight_chroma;
400 int luma_log2_weight_denom;
401 int chroma_log2_weight_denom;
402 int luma_weight[2][48];
403 int luma_offset[2][48];
404 int chroma_weight[2][48][2];
405 int chroma_offset[2][48][2];
406 int implicit_weight[48][48];
409 int deblocking_filter; ///< disable_deblocking_filter_idc with 1<->0
410 int slice_alpha_c0_offset;
411 int slice_beta_offset;
413 int redundant_pic_count;
415 int direct_spatial_mv_pred;
416 int dist_scale_factor[16];
417 int dist_scale_factor_field[2][32];
418 int map_col_to_list0[2][16+32];
419 int map_col_to_list0_field[2][2][16+32];
422 * num_ref_idx_l0/1_active_minus1 + 1
424 unsigned int ref_count[2]; ///< counts frames or fields, depending on current mb mode
425 unsigned int list_count;
426 Picture *short_ref[32];
427 Picture *long_ref[32];
428 Picture default_ref_list[2][32]; ///< base reference list for all slices of a coded picture
429 Picture ref_list[2][48]; /**< 0..15: frame refs, 16..47: mbaff field refs.
430 Reordered version of default_ref_list
431 according to picture reordering in slice header */
432 int ref2frm[MAX_SLICES][2][64]; ///< reference to frame number lists, used in the loop filter, the first 2 are for -2,-1
433 Picture *delayed_pic[MAX_DELAYED_PIC_COUNT+2]; //FIXME size?
437 * memory management control operations buffer.
439 MMCO mmco[MAX_MMCO_COUNT];
442 int long_ref_count; ///< number of actual long term references
443 int short_ref_count; ///< number of actual short term references
446 GetBitContext intra_gb;
447 GetBitContext inter_gb;
448 GetBitContext *intra_gb_ptr;
449 GetBitContext *inter_gb_ptr;
451 DECLARE_ALIGNED_16(DCTELEM, mb[16*24]);
452 DCTELEM mb_padding[256]; ///< as mb is addressed by scantable[i] and scantable is uint8_t we can either check that i is not too large or ensure that there is some unused stuff after mb
458 uint8_t cabac_state[460];
461 /* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0,1,2), 0x0? luma_cbp */
466 /* chroma_pred_mode for i4x4 or i16x16, else 0 */
467 uint8_t *chroma_pred_mode_table;
468 int last_qscale_diff;
469 int16_t (*mvd_table[2])[2];
470 DECLARE_ALIGNED_8(int16_t, mvd_cache[2][5*8][2]);
471 uint8_t *direct_table;
472 uint8_t direct_cache[5*8];
474 uint8_t zigzag_scan[16];
475 uint8_t zigzag_scan8x8[64];
476 uint8_t zigzag_scan8x8_cavlc[64];
477 uint8_t field_scan[16];
478 uint8_t field_scan8x8[64];
479 uint8_t field_scan8x8_cavlc[64];
480 const uint8_t *zigzag_scan_q0;
481 const uint8_t *zigzag_scan8x8_q0;
482 const uint8_t *zigzag_scan8x8_cavlc_q0;
483 const uint8_t *field_scan_q0;
484 const uint8_t *field_scan8x8_q0;
485 const uint8_t *field_scan8x8_cavlc_q0;
490 * @defgroup multithreading Members for slice based multithreading
493 struct H264Context *thread_context[MAX_THREADS];
496 * current slice number, used to initalize slice_num of each thread/context
501 * Max number of threads / contexts.
502 * This is equal to AVCodecContext.thread_count unless
503 * multithreaded decoding is impossible, in which case it is
509 * 1 if the single thread fallback warning has already been
510 * displayed, 0 otherwise.
512 int single_decode_warning;
519 uint32_t svq3_watermark_key;
522 * pic_struct in picture timing SEI message
524 SEI_PicStructType sei_pic_struct;
527 * Complement sei_pic_struct
528 * SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced frames.
529 * However, soft telecined frames may have these values.
530 * This is used in an attempt to flag soft telecine progressive.
532 int prev_interlaced_frame;
535 * Bit set of clock types for fields/frames in picture timing SEI message.
536 * For each found ct_type, appropriate bit is set (e.g., bit 1 for
542 * dpb_output_delay in picture timing SEI message, see H.264 C.2.2
544 int sei_dpb_output_delay;
547 * cpb_removal_delay in picture timing SEI message, see H.264 C.1.2
549 int sei_cpb_removal_delay;
552 * recovery_frame_cnt from SEI message
554 * Set to -1 if no recovery point SEI message found or to number of frames
555 * before playback synchronizes. Frames having recovery point are key
558 int sei_recovery_frame_cnt;
562 int luma_weight_flag[2]; ///< 7.4.3.2 luma_weight_lX_flag
563 int chroma_weight_flag[2]; ///< 7.4.3.2 chroma_weight_lX_flag
566 int sei_buffering_period_present; ///< Buffering period SEI flag
567 int initial_cpb_removal_delay[32]; ///< Initial timestamps for CPBs
571 extern const uint8_t ff_h264_chroma_qp[52];
577 int ff_h264_decode_sei(H264Context *h);
582 int ff_h264_decode_seq_parameter_set(H264Context *h);
587 int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length);
590 * Decodes a network abstraction layer unit.
591 * @param consumed is the number of bytes used as input
592 * @param length is the length of the array
593 * @param dst_length is the number of decoded bytes FIXME here or a decode rbsp tailing?
594 * @returns decoded bytes, might be src+1 if no escapes
596 const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length);
599 * identifies the exact end of the bitstream
600 * @return the length of the trailing, or 0 if damaged
602 int ff_h264_decode_rbsp_trailing(H264Context *h, const uint8_t *src);
605 * frees any data that may have been allocated in the H264 context like SPS, PPS etc.
607 av_cold void ff_h264_free_context(H264Context *h);
610 * reconstructs bitstream slice_type.
612 int ff_h264_get_slice_type(H264Context *h);
618 int ff_h264_alloc_tables(H264Context *h);
621 * fills the default_ref_list.
623 int ff_h264_fill_default_ref_list(H264Context *h);
625 int ff_h264_decode_ref_pic_list_reordering(H264Context *h);
626 void ff_h264_fill_mbaff_ref_list(H264Context *h);
627 void ff_h264_remove_all_refs(H264Context *h);
630 * Executes the reference picture marking (memory management control operations).
632 int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count);
634 int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb);
638 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
640 int ff_h264_check_intra4x4_pred_mode(H264Context *h);
643 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
645 int ff_h264_check_intra_pred_mode(H264Context *h, int mode);
647 void ff_h264_write_back_intra_pred_mode(H264Context *h);
648 void ff_h264_hl_decode_mb(H264Context *h);
649 int ff_h264_frame_start(H264Context *h);
650 av_cold int ff_h264_decode_init(AVCodecContext *avctx);
651 av_cold int ff_h264_decode_end(AVCodecContext *avctx);
652 av_cold void ff_h264_decode_init_vlc(void);
655 * decodes a macroblock
656 * @returns 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
658 int ff_h264_decode_mb_cavlc(H264Context *h);
661 * decodes a CABAC coded macroblock
662 * @returns 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
664 int ff_h264_decode_mb_cabac(H264Context *h);
666 void ff_h264_init_cabac_states(H264Context *h);
668 void ff_h264_direct_dist_scale_factor(H264Context * const h);
669 void ff_h264_direct_ref_list_init(H264Context * const h);
670 void ff_h264_pred_direct_motion(H264Context * const h, int *mb_type);
672 void ff_h264_filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize);
673 void ff_h264_filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize);
676 * Reset SEI values at the beginning of the frame.
678 * @param h H.264 context.
680 void ff_h264_reset_sei(H264Context *h);
692 //This table must be here because scan8[constant] must be known at compiletime
693 static const uint8_t scan8[16 + 2*4]={
694 4+1*8, 5+1*8, 4+2*8, 5+2*8,
695 6+1*8, 7+1*8, 6+2*8, 7+2*8,
696 4+3*8, 5+3*8, 4+4*8, 5+4*8,
697 6+3*8, 7+3*8, 6+4*8, 7+4*8,
704 static av_always_inline uint32_t pack16to32(int a, int b){
706 return (b&0xFFFF) + (a<<16);
708 return (a&0xFFFF) + (b<<16);
713 * gets the chroma qp.
715 static inline int get_chroma_qp(H264Context *h, int t, int qscale){
716 return h->pps.chroma_qp_table[t][qscale];
719 static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my);
721 static void fill_caches(H264Context *h, int mb_type, int for_deblock){
722 MpegEncContext * const s = &h->s;
723 const int mb_xy= h->mb_xy;
724 int topleft_xy, top_xy, topright_xy, left_xy[2];
725 int topleft_type, top_type, topright_type, left_type[2];
726 const uint8_t * left_block;
727 int topleft_partition= -1;
729 static const uint8_t left_block_options[4][8]={
736 top_xy = mb_xy - (s->mb_stride << FIELD_PICTURE);
738 //FIXME deblocking could skip the intra and nnz parts.
739 if(for_deblock && (h->slice_num == 1 || h->slice_table[mb_xy] == h->slice_table[top_xy]) && !FRAME_MBAFF)
742 /* Wow, what a mess, why didn't they simplify the interlacing & intra
743 * stuff, I can't imagine that these complex rules are worth it. */
745 topleft_xy = top_xy - 1;
746 topright_xy= top_xy + 1;
747 left_xy[1] = left_xy[0] = mb_xy-1;
748 left_block = left_block_options[0];
750 const int pair_xy = s->mb_x + (s->mb_y & ~1)*s->mb_stride;
751 const int top_pair_xy = pair_xy - s->mb_stride;
752 const int topleft_pair_xy = top_pair_xy - 1;
753 const int topright_pair_xy = top_pair_xy + 1;
754 const int topleft_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[topleft_pair_xy]);
755 const int top_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[top_pair_xy]);
756 const int topright_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[topright_pair_xy]);
757 const int left_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[pair_xy-1]);
758 const int curr_mb_field_flag = IS_INTERLACED(mb_type);
759 const int bottom = (s->mb_y & 1);
760 tprintf(s->avctx, "fill_caches: curr_mb_field_flag:%d, left_mb_field_flag:%d, topleft_mb_field_flag:%d, top_mb_field_flag:%d, topright_mb_field_flag:%d\n", curr_mb_field_flag, left_mb_field_flag, topleft_mb_field_flag, top_mb_field_flag, topright_mb_field_flag);
762 if (curr_mb_field_flag && (bottom || top_mb_field_flag)){
763 top_xy -= s->mb_stride;
765 if (curr_mb_field_flag && (bottom || topleft_mb_field_flag)){
766 topleft_xy -= s->mb_stride;
767 } else if(bottom && !curr_mb_field_flag && left_mb_field_flag) {
768 topleft_xy += s->mb_stride;
769 // take top left mv from the middle of the mb, as opposed to all other modes which use the bottom right partition
770 topleft_partition = 0;
772 if (curr_mb_field_flag && (bottom || topright_mb_field_flag)){
773 topright_xy -= s->mb_stride;
775 if (left_mb_field_flag != curr_mb_field_flag) {
776 left_xy[1] = left_xy[0] = pair_xy - 1;
777 if (curr_mb_field_flag) {
778 left_xy[1] += s->mb_stride;
779 left_block = left_block_options[3];
781 left_block= left_block_options[2 - bottom];
786 h->top_mb_xy = top_xy;
787 h->left_mb_xy[0] = left_xy[0];
788 h->left_mb_xy[1] = left_xy[1];
792 top_type = h->slice_table[top_xy ] < 0xFFFF ? s->current_picture.mb_type[top_xy] : 0;
793 left_type[0] = h->slice_table[left_xy[0] ] < 0xFFFF ? s->current_picture.mb_type[left_xy[0]] : 0;
794 left_type[1] = h->slice_table[left_xy[1] ] < 0xFFFF ? s->current_picture.mb_type[left_xy[1]] : 0;
796 if(MB_MBAFF && !IS_INTRA(mb_type)){
798 for(list=0; list<h->list_count; list++){
799 //These values where changed for ease of performing MC, we need to change them back
800 //FIXME maybe we can make MC and loop filter use the same values or prevent
801 //the MC code from changing ref_cache and rather use a temporary array.
802 if(USES_LIST(mb_type,list)){
803 int8_t *ref = &s->current_picture.ref_index[list][h->mb2b8_xy[mb_xy]];
804 *(uint32_t*)&h->ref_cache[list][scan8[ 0]] =
805 *(uint32_t*)&h->ref_cache[list][scan8[ 2]] = (pack16to32(ref[0],ref[1])&0x00FF00FF)*0x0101;
807 *(uint32_t*)&h->ref_cache[list][scan8[ 8]] =
808 *(uint32_t*)&h->ref_cache[list][scan8[10]] = (pack16to32(ref[0],ref[1])&0x00FF00FF)*0x0101;
813 topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
814 top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
815 topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
816 left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
817 left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
819 if(IS_INTRA(mb_type)){
820 int type_mask= h->pps.constrained_intra_pred ? IS_INTRA(-1) : -1;
821 h->topleft_samples_available=
822 h->top_samples_available=
823 h->left_samples_available= 0xFFFF;
824 h->topright_samples_available= 0xEEEA;
826 if(!(top_type & type_mask)){
827 h->topleft_samples_available= 0xB3FF;
828 h->top_samples_available= 0x33FF;
829 h->topright_samples_available= 0x26EA;
831 if(IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[0])){
832 if(IS_INTERLACED(mb_type)){
833 if(!(left_type[0] & type_mask)){
834 h->topleft_samples_available&= 0xDFFF;
835 h->left_samples_available&= 0x5FFF;
837 if(!(left_type[1] & type_mask)){
838 h->topleft_samples_available&= 0xFF5F;
839 h->left_samples_available&= 0xFF5F;
842 int left_typei = h->slice_table[left_xy[0] + s->mb_stride ] == h->slice_num
843 ? s->current_picture.mb_type[left_xy[0] + s->mb_stride] : 0;
844 assert(left_xy[0] == left_xy[1]);
845 if(!((left_typei & type_mask) && (left_type[0] & type_mask))){
846 h->topleft_samples_available&= 0xDF5F;
847 h->left_samples_available&= 0x5F5F;
851 if(!(left_type[0] & type_mask)){
852 h->topleft_samples_available&= 0xDF5F;
853 h->left_samples_available&= 0x5F5F;
857 if(!(topleft_type & type_mask))
858 h->topleft_samples_available&= 0x7FFF;
860 if(!(topright_type & type_mask))
861 h->topright_samples_available&= 0xFBFF;
863 if(IS_INTRA4x4(mb_type)){
864 if(IS_INTRA4x4(top_type)){
865 h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4];
866 h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5];
867 h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6];
868 h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];
871 if(!(top_type & type_mask))
876 h->intra4x4_pred_mode_cache[4+8*0]=
877 h->intra4x4_pred_mode_cache[5+8*0]=
878 h->intra4x4_pred_mode_cache[6+8*0]=
879 h->intra4x4_pred_mode_cache[7+8*0]= pred;
882 if(IS_INTRA4x4(left_type[i])){
883 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]];
884 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];
887 if(!(left_type[i] & type_mask))
892 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
893 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;
909 //FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)
911 h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][4];
912 h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][5];
913 h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][6];
914 h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3];
916 h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][9];
917 h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8];
919 h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][12];
920 h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11];
923 h->non_zero_count_cache[4+8*0]=
924 h->non_zero_count_cache[5+8*0]=
925 h->non_zero_count_cache[6+8*0]=
926 h->non_zero_count_cache[7+8*0]=
928 h->non_zero_count_cache[1+8*0]=
929 h->non_zero_count_cache[2+8*0]=
931 h->non_zero_count_cache[1+8*3]=
932 h->non_zero_count_cache[2+8*3]= CABAC && !IS_INTRA(mb_type) ? 0 : 64;
936 for (i=0; i<2; i++) {
938 h->non_zero_count_cache[3+8*1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[0+2*i]];
939 h->non_zero_count_cache[3+8*2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[1+2*i]];
940 h->non_zero_count_cache[0+8*1 + 8*i]= h->non_zero_count[left_xy[i]][left_block[4+2*i]];
941 h->non_zero_count_cache[0+8*4 + 8*i]= h->non_zero_count[left_xy[i]][left_block[5+2*i]];
943 h->non_zero_count_cache[3+8*1 + 2*8*i]=
944 h->non_zero_count_cache[3+8*2 + 2*8*i]=
945 h->non_zero_count_cache[0+8*1 + 8*i]=
946 h->non_zero_count_cache[0+8*4 + 8*i]= CABAC && !IS_INTRA(mb_type) ? 0 : 64;
953 h->top_cbp = h->cbp_table[top_xy];
954 } else if(IS_INTRA(mb_type)) {
961 h->left_cbp = h->cbp_table[left_xy[0]] & 0x1f0;
962 } else if(IS_INTRA(mb_type)) {
968 h->left_cbp |= ((h->cbp_table[left_xy[0]]>>((left_block[0]&(~1))+1))&0x1) << 1;
971 h->left_cbp |= ((h->cbp_table[left_xy[1]]>>((left_block[2]&(~1))+1))&0x1) << 3;
976 if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
978 for(list=0; list<h->list_count; list++){
979 if(!USES_LIST(mb_type, list) && !IS_DIRECT(mb_type) && !h->deblocking_filter){
980 /*if(!h->mv_cache_clean[list]){
981 memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?
982 memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));
983 h->mv_cache_clean[list]= 1;
987 h->mv_cache_clean[list]= 0;
989 if(USES_LIST(top_type, list)){
990 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
991 const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;
992 *(uint32_t*)h->mv_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 0];
993 *(uint32_t*)h->mv_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 1];
994 *(uint32_t*)h->mv_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 2];
995 *(uint32_t*)h->mv_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 3];
996 h->ref_cache[list][scan8[0] + 0 - 1*8]=
997 h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0];
998 h->ref_cache[list][scan8[0] + 2 - 1*8]=
999 h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1];
1001 *(uint32_t*)h->mv_cache [list][scan8[0] + 0 - 1*8]=
1002 *(uint32_t*)h->mv_cache [list][scan8[0] + 1 - 1*8]=
1003 *(uint32_t*)h->mv_cache [list][scan8[0] + 2 - 1*8]=
1004 *(uint32_t*)h->mv_cache [list][scan8[0] + 3 - 1*8]= 0;
1005 *(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101;
1009 int cache_idx = scan8[0] - 1 + i*2*8;
1010 if(USES_LIST(left_type[i], list)){
1011 const int b_xy= h->mb2b_xy[left_xy[i]] + 3;
1012 const int b8_xy= h->mb2b8_xy[left_xy[i]] + 1;
1013 *(uint32_t*)h->mv_cache[list][cache_idx ]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0+i*2]];
1014 *(uint32_t*)h->mv_cache[list][cache_idx+8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1+i*2]];
1015 h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0+i*2]>>1)];
1016 h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[1+i*2]>>1)];
1018 *(uint32_t*)h->mv_cache [list][cache_idx ]=
1019 *(uint32_t*)h->mv_cache [list][cache_idx+8]= 0;
1020 h->ref_cache[list][cache_idx ]=
1021 h->ref_cache[list][cache_idx+8]= left_type[i] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
1025 if(for_deblock || ((IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred) && !FRAME_MBAFF))
1028 if(USES_LIST(topleft_type, list)){
1029 const int b_xy = h->mb2b_xy[topleft_xy] + 3 + h->b_stride + (topleft_partition & 2*h->b_stride);
1030 const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + (topleft_partition & h->b8_stride);
1031 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
1032 h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];
1034 *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0;
1035 h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
1038 if(USES_LIST(topright_type, list)){
1039 const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;
1040 const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride;
1041 *(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
1042 h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy];
1044 *(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0;
1045 h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
1048 if((IS_SKIP(mb_type) || IS_DIRECT(mb_type)) && !FRAME_MBAFF)
1051 h->ref_cache[list][scan8[5 ]+1] =
1052 h->ref_cache[list][scan8[7 ]+1] =
1053 h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewhere else)
1054 h->ref_cache[list][scan8[4 ]] =
1055 h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
1056 *(uint32_t*)h->mv_cache [list][scan8[5 ]+1]=
1057 *(uint32_t*)h->mv_cache [list][scan8[7 ]+1]=
1058 *(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
1059 *(uint32_t*)h->mv_cache [list][scan8[4 ]]=
1060 *(uint32_t*)h->mv_cache [list][scan8[12]]= 0;
1063 /* XXX beurk, Load mvd */
1064 if(USES_LIST(top_type, list)){
1065 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
1066 *(uint32_t*)h->mvd_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 0];
1067 *(uint32_t*)h->mvd_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 1];
1068 *(uint32_t*)h->mvd_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 2];
1069 *(uint32_t*)h->mvd_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 3];
1071 *(uint32_t*)h->mvd_cache [list][scan8[0] + 0 - 1*8]=
1072 *(uint32_t*)h->mvd_cache [list][scan8[0] + 1 - 1*8]=
1073 *(uint32_t*)h->mvd_cache [list][scan8[0] + 2 - 1*8]=
1074 *(uint32_t*)h->mvd_cache [list][scan8[0] + 3 - 1*8]= 0;
1076 if(USES_LIST(left_type[0], list)){
1077 const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
1078 *(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]];
1079 *(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]];
1081 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 0*8]=
1082 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 1*8]= 0;
1084 if(USES_LIST(left_type[1], list)){
1085 const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
1086 *(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]];
1087 *(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]];
1089 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 2*8]=
1090 *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 3*8]= 0;
1092 *(uint32_t*)h->mvd_cache [list][scan8[5 ]+1]=
1093 *(uint32_t*)h->mvd_cache [list][scan8[7 ]+1]=
1094 *(uint32_t*)h->mvd_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
1095 *(uint32_t*)h->mvd_cache [list][scan8[4 ]]=
1096 *(uint32_t*)h->mvd_cache [list][scan8[12]]= 0;
1098 if(h->slice_type_nos == FF_B_TYPE){
1099 fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, 0, 1);
1101 if(IS_DIRECT(top_type)){
1102 *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0x01010101;
1103 }else if(IS_8X8(top_type)){
1104 int b8_xy = h->mb2b8_xy[top_xy] + h->b8_stride;
1105 h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy];
1106 h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 1];
1108 *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0;
1111 if(IS_DIRECT(left_type[0]))
1112 h->direct_cache[scan8[0] - 1 + 0*8]= 1;
1113 else if(IS_8X8(left_type[0]))
1114 h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[h->mb2b8_xy[left_xy[0]] + 1 + h->b8_stride*(left_block[0]>>1)];
1116 h->direct_cache[scan8[0] - 1 + 0*8]= 0;
1118 if(IS_DIRECT(left_type[1]))
1119 h->direct_cache[scan8[0] - 1 + 2*8]= 1;
1120 else if(IS_8X8(left_type[1]))
1121 h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[h->mb2b8_xy[left_xy[1]] + 1 + h->b8_stride*(left_block[2]>>1)];
1123 h->direct_cache[scan8[0] - 1 + 2*8]= 0;
1129 MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\
1130 MAP_F2F(scan8[0] + 0 - 1*8, top_type)\
1131 MAP_F2F(scan8[0] + 1 - 1*8, top_type)\
1132 MAP_F2F(scan8[0] + 2 - 1*8, top_type)\
1133 MAP_F2F(scan8[0] + 3 - 1*8, top_type)\
1134 MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\
1135 MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\
1136 MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\
1137 MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\
1138 MAP_F2F(scan8[0] - 1 + 3*8, left_type[1])
1140 #define MAP_F2F(idx, mb_type)\
1141 if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
1142 h->ref_cache[list][idx] <<= 1;\
1143 h->mv_cache[list][idx][1] /= 2;\
1144 h->mvd_cache[list][idx][1] /= 2;\
1149 #define MAP_F2F(idx, mb_type)\
1150 if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
1151 h->ref_cache[list][idx] >>= 1;\
1152 h->mv_cache[list][idx][1] <<= 1;\
1153 h->mvd_cache[list][idx][1] <<= 1;\
1163 h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]);
1167 * gets the predicted intra4x4 prediction mode.
1169 static inline int pred_intra_mode(H264Context *h, int n){
1170 const int index8= scan8[n];
1171 const int left= h->intra4x4_pred_mode_cache[index8 - 1];
1172 const int top = h->intra4x4_pred_mode_cache[index8 - 8];
1173 const int min= FFMIN(left, top);
1175 tprintf(h->s.avctx, "mode:%d %d min:%d\n", left ,top, min);
1177 if(min<0) return DC_PRED;
1181 static inline void write_back_non_zero_count(H264Context *h){
1182 const int mb_xy= h->mb_xy;
1184 h->non_zero_count[mb_xy][0]= h->non_zero_count_cache[7+8*1];
1185 h->non_zero_count[mb_xy][1]= h->non_zero_count_cache[7+8*2];
1186 h->non_zero_count[mb_xy][2]= h->non_zero_count_cache[7+8*3];
1187 h->non_zero_count[mb_xy][3]= h->non_zero_count_cache[7+8*4];
1188 h->non_zero_count[mb_xy][4]= h->non_zero_count_cache[4+8*4];
1189 h->non_zero_count[mb_xy][5]= h->non_zero_count_cache[5+8*4];
1190 h->non_zero_count[mb_xy][6]= h->non_zero_count_cache[6+8*4];
1192 h->non_zero_count[mb_xy][9]= h->non_zero_count_cache[1+8*2];
1193 h->non_zero_count[mb_xy][8]= h->non_zero_count_cache[2+8*2];
1194 h->non_zero_count[mb_xy][7]= h->non_zero_count_cache[2+8*1];
1196 h->non_zero_count[mb_xy][12]=h->non_zero_count_cache[1+8*5];
1197 h->non_zero_count[mb_xy][11]=h->non_zero_count_cache[2+8*5];
1198 h->non_zero_count[mb_xy][10]=h->non_zero_count_cache[2+8*4];
1201 static inline void write_back_motion(H264Context *h, int mb_type){
1202 MpegEncContext * const s = &h->s;
1203 const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
1204 const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride;
1207 if(!USES_LIST(mb_type, 0))
1208 fill_rectangle(&s->current_picture.ref_index[0][b8_xy], 2, 2, h->b8_stride, (uint8_t)LIST_NOT_USED, 1);
1210 for(list=0; list<h->list_count; list++){
1212 if(!USES_LIST(mb_type, list))
1216 *(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];
1217 *(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];
1220 if(IS_SKIP(mb_type))
1221 fill_rectangle(h->mvd_table[list][b_xy], 4, 4, h->b_stride, 0, 4);
1224 *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+0 + 8*y];
1225 *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+2 + 8*y];
1230 int8_t *ref_index = &s->current_picture.ref_index[list][b8_xy];
1231 ref_index[0+0*h->b8_stride]= h->ref_cache[list][scan8[0]];
1232 ref_index[1+0*h->b8_stride]= h->ref_cache[list][scan8[4]];
1233 ref_index[0+1*h->b8_stride]= h->ref_cache[list][scan8[8]];
1234 ref_index[1+1*h->b8_stride]= h->ref_cache[list][scan8[12]];
1238 if(h->slice_type_nos == FF_B_TYPE && CABAC){
1239 if(IS_8X8(mb_type)){
1240 uint8_t *direct_table = &h->direct_table[b8_xy];
1241 direct_table[1+0*h->b8_stride] = IS_DIRECT(h->sub_mb_type[1]) ? 1 : 0;
1242 direct_table[0+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[2]) ? 1 : 0;
1243 direct_table[1+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[3]) ? 1 : 0;
1248 static inline int get_dct8x8_allowed(H264Context *h){
1249 if(h->sps.direct_8x8_inference_flag)
1250 return !(*(uint64_t*)h->sub_mb_type & ((MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8 )*0x0001000100010001ULL));
1252 return !(*(uint64_t*)h->sub_mb_type & ((MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8|MB_TYPE_DIRECT2)*0x0001000100010001ULL));
1255 static void predict_field_decoding_flag(H264Context *h){
1256 MpegEncContext * const s = &h->s;
1257 const int mb_xy= h->mb_xy;
1258 int mb_type = (h->slice_table[mb_xy-1] == h->slice_num)
1259 ? s->current_picture.mb_type[mb_xy-1]
1260 : (h->slice_table[mb_xy-s->mb_stride] == h->slice_num)
1261 ? s->current_picture.mb_type[mb_xy-s->mb_stride]
1263 h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
1267 * decodes a P_SKIP or B_SKIP macroblock
1269 static void decode_mb_skip(H264Context *h){
1270 MpegEncContext * const s = &h->s;
1271 const int mb_xy= h->mb_xy;
1274 memset(h->non_zero_count[mb_xy], 0, 16);
1275 memset(h->non_zero_count_cache + 8, 0, 8*5); //FIXME ugly, remove pfui
1278 mb_type|= MB_TYPE_INTERLACED;
1280 if( h->slice_type_nos == FF_B_TYPE )
1282 // just for fill_caches. pred_direct_motion will set the real mb_type
1283 mb_type|= MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2|MB_TYPE_SKIP;
1285 fill_caches(h, mb_type, 0); //FIXME check what is needed and what not ...
1286 ff_h264_pred_direct_motion(h, &mb_type);
1287 mb_type|= MB_TYPE_SKIP;
1292 mb_type|= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_SKIP;
1294 fill_caches(h, mb_type, 0); //FIXME check what is needed and what not ...
1295 pred_pskip_motion(h, &mx, &my);
1296 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
1297 fill_rectangle( h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx,my), 4);
1300 write_back_motion(h, mb_type);
1301 s->current_picture.mb_type[mb_xy]= mb_type;
1302 s->current_picture.qscale_table[mb_xy]= s->qscale;
1303 h->slice_table[ mb_xy ]= h->slice_num;
1304 h->prev_mb_skipped= 1;
1307 #include "h264_mvpred.h" //For pred_pskip_motion()
1309 #endif /* AVCODEC_H264_H */