Libav 0.7.1
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00001 /* 00002 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder 00003 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> 00004 * 00005 * This file is part of Libav. 00006 * 00007 * Libav is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * Libav is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with Libav; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 00028 #ifndef AVCODEC_H264_H 00029 #define AVCODEC_H264_H 00030 00031 #include "libavutil/intreadwrite.h" 00032 #include "dsputil.h" 00033 #include "cabac.h" 00034 #include "mpegvideo.h" 00035 #include "h264dsp.h" 00036 #include "h264pred.h" 00037 #include "rectangle.h" 00038 00039 #define interlaced_dct interlaced_dct_is_a_bad_name 00040 #define mb_intra mb_intra_is_not_initialized_see_mb_type 00041 00042 #define CHROMA_DC_COEFF_TOKEN_VLC_BITS 8 00043 #define COEFF_TOKEN_VLC_BITS 8 00044 #define TOTAL_ZEROS_VLC_BITS 9 00045 #define CHROMA_DC_TOTAL_ZEROS_VLC_BITS 3 00046 #define RUN_VLC_BITS 3 00047 #define RUN7_VLC_BITS 6 00048 00049 #define MAX_SPS_COUNT 32 00050 #define MAX_PPS_COUNT 256 00051 00052 #define MAX_MMCO_COUNT 66 00053 00054 #define MAX_DELAYED_PIC_COUNT 16 00055 00056 /* Compiling in interlaced support reduces the speed 00057 * of progressive decoding by about 2%. */ 00058 #define ALLOW_INTERLACE 00059 00060 #define FMO 0 00061 00066 #define MAX_SLICES 16 00067 00068 #ifdef ALLOW_INTERLACE 00069 #define MB_MBAFF h->mb_mbaff 00070 #define MB_FIELD h->mb_field_decoding_flag 00071 #define FRAME_MBAFF h->mb_aff_frame 00072 #define FIELD_PICTURE (s->picture_structure != PICT_FRAME) 00073 #else 00074 #define MB_MBAFF 0 00075 #define MB_FIELD 0 00076 #define FRAME_MBAFF 0 00077 #define FIELD_PICTURE 0 00078 #undef IS_INTERLACED 00079 #define IS_INTERLACED(mb_type) 0 00080 #endif 00081 #define FIELD_OR_MBAFF_PICTURE (FRAME_MBAFF || FIELD_PICTURE) 00082 00083 #ifndef CABAC 00084 #define CABAC h->pps.cabac 00085 #endif 00086 00087 #define CHROMA444 (h->sps.chroma_format_idc == 3) 00088 00089 #define EXTENDED_SAR 255 00090 00091 #define MB_TYPE_REF0 MB_TYPE_ACPRED //dirty but it fits in 16 bit 00092 #define MB_TYPE_8x8DCT 0x01000000 00093 #define IS_REF0(a) ((a) & MB_TYPE_REF0) 00094 #define IS_8x8DCT(a) ((a) & MB_TYPE_8x8DCT) 00095 00100 #define DELAYED_PIC_REF 4 00101 00102 #define QP_MAX_NUM (51 + 2*6) // The maximum supported qp 00103 00104 /* NAL unit types */ 00105 enum { 00106 NAL_SLICE=1, 00107 NAL_DPA, 00108 NAL_DPB, 00109 NAL_DPC, 00110 NAL_IDR_SLICE, 00111 NAL_SEI, 00112 NAL_SPS, 00113 NAL_PPS, 00114 NAL_AUD, 00115 NAL_END_SEQUENCE, 00116 NAL_END_STREAM, 00117 NAL_FILLER_DATA, 00118 NAL_SPS_EXT, 00119 NAL_AUXILIARY_SLICE=19 00120 }; 00121 00125 typedef enum { 00126 SEI_BUFFERING_PERIOD = 0, 00127 SEI_TYPE_PIC_TIMING = 1, 00128 SEI_TYPE_USER_DATA_UNREGISTERED = 5, 00129 SEI_TYPE_RECOVERY_POINT = 6 00130 } SEI_Type; 00131 00135 typedef enum { 00136 SEI_PIC_STRUCT_FRAME = 0, 00137 SEI_PIC_STRUCT_TOP_FIELD = 1, 00138 SEI_PIC_STRUCT_BOTTOM_FIELD = 2, 00139 SEI_PIC_STRUCT_TOP_BOTTOM = 3, 00140 SEI_PIC_STRUCT_BOTTOM_TOP = 4, 00141 SEI_PIC_STRUCT_TOP_BOTTOM_TOP = 5, 00142 SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM = 6, 00143 SEI_PIC_STRUCT_FRAME_DOUBLING = 7, 00144 SEI_PIC_STRUCT_FRAME_TRIPLING = 8 00145 } SEI_PicStructType; 00146 00150 typedef struct SPS{ 00151 00152 int profile_idc; 00153 int level_idc; 00154 int chroma_format_idc; 00155 int transform_bypass; 00156 int log2_max_frame_num; 00157 int poc_type; 00158 int log2_max_poc_lsb; 00159 int delta_pic_order_always_zero_flag; 00160 int offset_for_non_ref_pic; 00161 int offset_for_top_to_bottom_field; 00162 int poc_cycle_length; 00163 int ref_frame_count; 00164 int gaps_in_frame_num_allowed_flag; 00165 int mb_width; 00166 int mb_height; 00167 int frame_mbs_only_flag; 00168 int mb_aff; 00169 int direct_8x8_inference_flag; 00170 int crop; 00171 unsigned int crop_left; 00172 unsigned int crop_right; 00173 unsigned int crop_top; 00174 unsigned int crop_bottom; 00175 int vui_parameters_present_flag; 00176 AVRational sar; 00177 int video_signal_type_present_flag; 00178 int full_range; 00179 int colour_description_present_flag; 00180 enum AVColorPrimaries color_primaries; 00181 enum AVColorTransferCharacteristic color_trc; 00182 enum AVColorSpace colorspace; 00183 int timing_info_present_flag; 00184 uint32_t num_units_in_tick; 00185 uint32_t time_scale; 00186 int fixed_frame_rate_flag; 00187 short offset_for_ref_frame[256]; //FIXME dyn aloc? 00188 int bitstream_restriction_flag; 00189 int num_reorder_frames; 00190 int scaling_matrix_present; 00191 uint8_t scaling_matrix4[6][16]; 00192 uint8_t scaling_matrix8[6][64]; 00193 int nal_hrd_parameters_present_flag; 00194 int vcl_hrd_parameters_present_flag; 00195 int pic_struct_present_flag; 00196 int time_offset_length; 00197 int cpb_cnt; 00198 int initial_cpb_removal_delay_length; 00199 int cpb_removal_delay_length; 00200 int dpb_output_delay_length; 00201 int bit_depth_luma; 00202 int bit_depth_chroma; 00203 int residual_color_transform_flag; 00204 int constraint_set_flags; 00205 }SPS; 00206 00210 typedef struct PPS{ 00211 unsigned int sps_id; 00212 int cabac; 00213 int pic_order_present; 00214 int slice_group_count; 00215 int mb_slice_group_map_type; 00216 unsigned int ref_count[2]; 00217 int weighted_pred; 00218 int weighted_bipred_idc; 00219 int init_qp; 00220 int init_qs; 00221 int chroma_qp_index_offset[2]; 00222 int deblocking_filter_parameters_present; 00223 int constrained_intra_pred; 00224 int redundant_pic_cnt_present; 00225 int transform_8x8_mode; 00226 uint8_t scaling_matrix4[6][16]; 00227 uint8_t scaling_matrix8[6][64]; 00228 uint8_t chroma_qp_table[2][64]; 00229 int chroma_qp_diff; 00230 }PPS; 00231 00235 typedef enum MMCOOpcode{ 00236 MMCO_END=0, 00237 MMCO_SHORT2UNUSED, 00238 MMCO_LONG2UNUSED, 00239 MMCO_SHORT2LONG, 00240 MMCO_SET_MAX_LONG, 00241 MMCO_RESET, 00242 MMCO_LONG, 00243 } MMCOOpcode; 00244 00248 typedef struct MMCO{ 00249 MMCOOpcode opcode; 00250 int short_pic_num; 00251 int long_arg; 00252 } MMCO; 00253 00257 typedef struct H264Context{ 00258 MpegEncContext s; 00259 H264DSPContext h264dsp; 00260 int pixel_shift; 00261 int chroma_qp[2]; //QPc 00262 00263 int qp_thresh; 00264 00265 int prev_mb_skipped; 00266 int next_mb_skipped; 00267 00268 //prediction stuff 00269 int chroma_pred_mode; 00270 int intra16x16_pred_mode; 00271 00272 int topleft_mb_xy; 00273 int top_mb_xy; 00274 int topright_mb_xy; 00275 int left_mb_xy[2]; 00276 00277 int topleft_type; 00278 int top_type; 00279 int topright_type; 00280 int left_type[2]; 00281 00282 const uint8_t * left_block; 00283 int topleft_partition; 00284 00285 int8_t intra4x4_pred_mode_cache[5*8]; 00286 int8_t (*intra4x4_pred_mode); 00287 H264PredContext hpc; 00288 unsigned int topleft_samples_available; 00289 unsigned int top_samples_available; 00290 unsigned int topright_samples_available; 00291 unsigned int left_samples_available; 00292 uint8_t (*top_borders[2])[(16*3)*2]; 00293 00298 DECLARE_ALIGNED(8, uint8_t, non_zero_count_cache)[15*8]; 00299 00300 uint8_t (*non_zero_count)[48]; 00301 00305 DECLARE_ALIGNED(16, int16_t, mv_cache)[2][5*8][2]; 00306 DECLARE_ALIGNED(8, int8_t, ref_cache)[2][5*8]; 00307 #define LIST_NOT_USED -1 //FIXME rename? 00308 #define PART_NOT_AVAILABLE -2 00309 00313 int mv_cache_clean[2]; 00314 00318 int neighbor_transform_size; 00319 00324 int block_offset[2*(16*3)]; 00325 00326 uint32_t *mb2b_xy; //FIXME are these 4 a good idea? 00327 uint32_t *mb2br_xy; 00328 int b_stride; //FIXME use s->b4_stride 00329 00330 int mb_linesize; 00331 int mb_uvlinesize; 00332 00333 int emu_edge_width; 00334 int emu_edge_height; 00335 00336 SPS sps; 00337 00341 PPS pps; //FIXME move to Picture perhaps? (->no) do we need that? 00342 00343 uint32_t dequant4_buffer[6][QP_MAX_NUM+1][16]; //FIXME should these be moved down? 00344 uint32_t dequant8_buffer[6][QP_MAX_NUM+1][64]; 00345 uint32_t (*dequant4_coeff[6])[16]; 00346 uint32_t (*dequant8_coeff[6])[64]; 00347 00348 int slice_num; 00349 uint16_t *slice_table; 00350 int slice_type; 00351 int slice_type_nos; 00352 int slice_type_fixed; 00353 00354 //interlacing specific flags 00355 int mb_aff_frame; 00356 int mb_field_decoding_flag; 00357 int mb_mbaff; 00358 00359 DECLARE_ALIGNED(8, uint16_t, sub_mb_type)[4]; 00360 00361 //Weighted pred stuff 00362 int use_weight; 00363 int use_weight_chroma; 00364 int luma_log2_weight_denom; 00365 int chroma_log2_weight_denom; 00366 //The following 2 can be changed to int8_t but that causes 10cpu cycles speedloss 00367 int luma_weight[48][2][2]; 00368 int chroma_weight[48][2][2][2]; 00369 int implicit_weight[48][48][2]; 00370 00371 int direct_spatial_mv_pred; 00372 int col_parity; 00373 int col_fieldoff; 00374 int dist_scale_factor[16]; 00375 int dist_scale_factor_field[2][32]; 00376 int map_col_to_list0[2][16+32]; 00377 int map_col_to_list0_field[2][2][16+32]; 00378 00382 unsigned int ref_count[2]; 00383 unsigned int list_count; 00384 uint8_t *list_counts; 00385 Picture ref_list[2][48]; 00388 int ref2frm[MAX_SLICES][2][64]; 00389 00390 //data partitioning 00391 GetBitContext intra_gb; 00392 GetBitContext inter_gb; 00393 GetBitContext *intra_gb_ptr; 00394 GetBitContext *inter_gb_ptr; 00395 00396 DECLARE_ALIGNED(16, DCTELEM, mb)[16*48*2]; 00397 DECLARE_ALIGNED(16, DCTELEM, mb_luma_dc)[3][16*2]; 00398 DCTELEM mb_padding[256*2]; 00399 00403 CABACContext cabac; 00404 uint8_t cabac_state[1024]; 00405 00406 /* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0,1,2), 0x0? luma_cbp */ 00407 uint16_t *cbp_table; 00408 int cbp; 00409 int top_cbp; 00410 int left_cbp; 00411 /* chroma_pred_mode for i4x4 or i16x16, else 0 */ 00412 uint8_t *chroma_pred_mode_table; 00413 int last_qscale_diff; 00414 uint8_t (*mvd_table[2])[2]; 00415 DECLARE_ALIGNED(16, uint8_t, mvd_cache)[2][5*8][2]; 00416 uint8_t *direct_table; 00417 uint8_t direct_cache[5*8]; 00418 00419 uint8_t zigzag_scan[16]; 00420 uint8_t zigzag_scan8x8[64]; 00421 uint8_t zigzag_scan8x8_cavlc[64]; 00422 uint8_t field_scan[16]; 00423 uint8_t field_scan8x8[64]; 00424 uint8_t field_scan8x8_cavlc[64]; 00425 const uint8_t *zigzag_scan_q0; 00426 const uint8_t *zigzag_scan8x8_q0; 00427 const uint8_t *zigzag_scan8x8_cavlc_q0; 00428 const uint8_t *field_scan_q0; 00429 const uint8_t *field_scan8x8_q0; 00430 const uint8_t *field_scan8x8_cavlc_q0; 00431 00432 int x264_build; 00433 00434 int mb_xy; 00435 00436 int is_complex; 00437 00438 //deblock 00439 int deblocking_filter; 00440 int slice_alpha_c0_offset; 00441 int slice_beta_offset; 00442 00443 //============================================================= 00444 //Things below are not used in the MB or more inner code 00445 00446 int nal_ref_idc; 00447 int nal_unit_type; 00448 uint8_t *rbsp_buffer[2]; 00449 unsigned int rbsp_buffer_size[2]; 00450 00454 int is_avc; 00455 int nal_length_size; 00456 int got_first; 00457 00458 SPS *sps_buffers[MAX_SPS_COUNT]; 00459 PPS *pps_buffers[MAX_PPS_COUNT]; 00460 00461 int dequant_coeff_pps; 00462 00463 uint16_t *slice_table_base; 00464 00465 00466 //POC stuff 00467 int poc_lsb; 00468 int poc_msb; 00469 int delta_poc_bottom; 00470 int delta_poc[2]; 00471 int frame_num; 00472 int prev_poc_msb; 00473 int prev_poc_lsb; 00474 int frame_num_offset; 00475 int prev_frame_num_offset; 00476 int prev_frame_num; 00477 00481 int curr_pic_num; 00482 00486 int max_pic_num; 00487 00488 int redundant_pic_count; 00489 00490 Picture *short_ref[32]; 00491 Picture *long_ref[32]; 00492 Picture default_ref_list[2][32]; 00493 Picture *delayed_pic[MAX_DELAYED_PIC_COUNT+2]; //FIXME size? 00494 Picture *next_output_pic; 00495 int outputed_poc; 00496 int next_outputed_poc; 00497 00501 MMCO mmco[MAX_MMCO_COUNT]; 00502 int mmco_index; 00503 00504 int long_ref_count; 00505 int short_ref_count; 00506 00507 int cabac_init_idc; 00508 00513 struct H264Context *thread_context[MAX_THREADS]; 00514 00518 int current_slice; 00519 00526 int max_contexts; 00527 00532 int single_decode_warning; 00533 00534 int last_slice_type; 00540 SEI_PicStructType sei_pic_struct; 00541 00548 int prev_interlaced_frame; 00549 00555 int sei_ct_type; 00556 00560 int sei_dpb_output_delay; 00561 00565 int sei_cpb_removal_delay; 00566 00574 int sei_recovery_frame_cnt; 00575 00576 int luma_weight_flag[2]; 00577 int chroma_weight_flag[2]; 00578 00579 // Timestamp stuff 00580 int sei_buffering_period_present; 00581 int initial_cpb_removal_delay[32]; 00582 }H264Context; 00583 00584 00585 extern const uint8_t ff_h264_chroma_qp[3][QP_MAX_NUM+1]; 00586 00590 int ff_h264_decode_sei(H264Context *h); 00591 00595 int ff_h264_decode_seq_parameter_set(H264Context *h); 00596 00600 int ff_h264_get_profile(SPS *sps); 00601 00605 int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length); 00606 00614 const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length); 00615 00619 av_cold void ff_h264_free_context(H264Context *h); 00620 00624 int ff_h264_get_slice_type(const H264Context *h); 00625 00630 int ff_h264_alloc_tables(H264Context *h); 00631 00635 int ff_h264_fill_default_ref_list(H264Context *h); 00636 00637 int ff_h264_decode_ref_pic_list_reordering(H264Context *h); 00638 void ff_h264_fill_mbaff_ref_list(H264Context *h); 00639 void ff_h264_remove_all_refs(H264Context *h); 00640 00644 int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count); 00645 00646 int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb); 00647 00648 void ff_generate_sliding_window_mmcos(H264Context *h); 00649 00650 00654 int ff_h264_check_intra4x4_pred_mode(H264Context *h); 00655 00659 int ff_h264_check_intra_pred_mode(H264Context *h, int mode, int is_chroma); 00660 00661 void ff_h264_write_back_intra_pred_mode(H264Context *h); 00662 void ff_h264_hl_decode_mb(H264Context *h); 00663 int ff_h264_frame_start(H264Context *h); 00664 int ff_h264_decode_extradata(H264Context *h); 00665 av_cold int ff_h264_decode_init(AVCodecContext *avctx); 00666 av_cold int ff_h264_decode_end(AVCodecContext *avctx); 00667 av_cold void ff_h264_decode_init_vlc(void); 00668 00673 int ff_h264_decode_mb_cavlc(H264Context *h); 00674 00679 int ff_h264_decode_mb_cabac(H264Context *h); 00680 00681 void ff_h264_init_cabac_states(H264Context *h); 00682 00683 void ff_h264_direct_dist_scale_factor(H264Context * const h); 00684 void ff_h264_direct_ref_list_init(H264Context * const h); 00685 void ff_h264_pred_direct_motion(H264Context * const h, int *mb_type); 00686 00687 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); 00688 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); 00689 00695 void ff_h264_reset_sei(H264Context *h); 00696 00697 00698 /* 00699 o-o o-o 00700 / / / 00701 o-o o-o 00702 ,---' 00703 o-o o-o 00704 / / / 00705 o-o o-o 00706 */ 00707 00708 /* Scan8 organization: 00709 * 0 1 2 3 4 5 6 7 00710 * 0 DY y y y y y 00711 * 1 y Y Y Y Y 00712 * 2 y Y Y Y Y 00713 * 3 y Y Y Y Y 00714 * 4 y Y Y Y Y 00715 * 5 DU u u u u u 00716 * 6 u U U U U 00717 * 7 u U U U U 00718 * 8 u U U U U 00719 * 9 u U U U U 00720 * 10 DV v v v v v 00721 * 11 v V V V V 00722 * 12 v V V V V 00723 * 13 v V V V V 00724 * 14 v V V V V 00725 * DY/DU/DV are for luma/chroma DC. 00726 */ 00727 00728 #define LUMA_DC_BLOCK_INDEX 48 00729 #define CHROMA_DC_BLOCK_INDEX 49 00730 00731 //This table must be here because scan8[constant] must be known at compiletime 00732 static const uint8_t scan8[16*3 + 3]={ 00733 4+ 1*8, 5+ 1*8, 4+ 2*8, 5+ 2*8, 00734 6+ 1*8, 7+ 1*8, 6+ 2*8, 7+ 2*8, 00735 4+ 3*8, 5+ 3*8, 4+ 4*8, 5+ 4*8, 00736 6+ 3*8, 7+ 3*8, 6+ 4*8, 7+ 4*8, 00737 4+ 6*8, 5+ 6*8, 4+ 7*8, 5+ 7*8, 00738 6+ 6*8, 7+ 6*8, 6+ 7*8, 7+ 7*8, 00739 4+ 8*8, 5+ 8*8, 4+ 9*8, 5+ 9*8, 00740 6+ 8*8, 7+ 8*8, 6+ 9*8, 7+ 9*8, 00741 4+11*8, 5+11*8, 4+12*8, 5+12*8, 00742 6+11*8, 7+11*8, 6+12*8, 7+12*8, 00743 4+13*8, 5+13*8, 4+14*8, 5+14*8, 00744 6+13*8, 7+13*8, 6+14*8, 7+14*8, 00745 0+ 0*8, 0+ 5*8, 0+10*8 00746 }; 00747 00748 static av_always_inline uint32_t pack16to32(int a, int b){ 00749 #if HAVE_BIGENDIAN 00750 return (b&0xFFFF) + (a<<16); 00751 #else 00752 return (a&0xFFFF) + (b<<16); 00753 #endif 00754 } 00755 00756 static av_always_inline uint16_t pack8to16(int a, int b){ 00757 #if HAVE_BIGENDIAN 00758 return (b&0xFF) + (a<<8); 00759 #else 00760 return (a&0xFF) + (b<<8); 00761 #endif 00762 } 00763 00767 static inline int get_chroma_qp(H264Context *h, int t, int qscale){ 00768 return h->pps.chroma_qp_table[t][qscale]; 00769 } 00770 00771 static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my); 00772 00773 static void fill_decode_neighbors(H264Context *h, int mb_type){ 00774 MpegEncContext * const s = &h->s; 00775 const int mb_xy= h->mb_xy; 00776 int topleft_xy, top_xy, topright_xy, left_xy[2]; 00777 static const uint8_t left_block_options[4][32]={ 00778 {0,1,2,3,7,10,8,11,3+0*4, 3+1*4, 3+2*4, 3+3*4, 1+4*4, 1+8*4, 1+5*4, 1+9*4}, 00779 {2,2,3,3,8,11,8,11,3+2*4, 3+2*4, 3+3*4, 3+3*4, 1+5*4, 1+9*4, 1+5*4, 1+9*4}, 00780 {0,0,1,1,7,10,7,10,3+0*4, 3+0*4, 3+1*4, 3+1*4, 1+4*4, 1+8*4, 1+4*4, 1+8*4}, 00781 {0,2,0,2,7,10,7,10,3+0*4, 3+2*4, 3+0*4, 3+2*4, 1+4*4, 1+8*4, 1+4*4, 1+8*4} 00782 }; 00783 00784 h->topleft_partition= -1; 00785 00786 top_xy = mb_xy - (s->mb_stride << MB_FIELD); 00787 00788 /* Wow, what a mess, why didn't they simplify the interlacing & intra 00789 * stuff, I can't imagine that these complex rules are worth it. */ 00790 00791 topleft_xy = top_xy - 1; 00792 topright_xy= top_xy + 1; 00793 left_xy[1] = left_xy[0] = mb_xy-1; 00794 h->left_block = left_block_options[0]; 00795 if(FRAME_MBAFF){ 00796 const int left_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[mb_xy-1]); 00797 const int curr_mb_field_flag = IS_INTERLACED(mb_type); 00798 if(s->mb_y&1){ 00799 if (left_mb_field_flag != curr_mb_field_flag) { 00800 left_xy[1] = left_xy[0] = mb_xy - s->mb_stride - 1; 00801 if (curr_mb_field_flag) { 00802 left_xy[1] += s->mb_stride; 00803 h->left_block = left_block_options[3]; 00804 } else { 00805 topleft_xy += s->mb_stride; 00806 // take top left mv from the middle of the mb, as opposed to all other modes which use the bottom right partition 00807 h->topleft_partition = 0; 00808 h->left_block = left_block_options[1]; 00809 } 00810 } 00811 }else{ 00812 if(curr_mb_field_flag){ 00813 topleft_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy - 1]>>7)&1)-1); 00814 topright_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy + 1]>>7)&1)-1); 00815 top_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy ]>>7)&1)-1); 00816 } 00817 if (left_mb_field_flag != curr_mb_field_flag) { 00818 if (curr_mb_field_flag) { 00819 left_xy[1] += s->mb_stride; 00820 h->left_block = left_block_options[3]; 00821 } else { 00822 h->left_block = left_block_options[2]; 00823 } 00824 } 00825 } 00826 } 00827 00828 h->topleft_mb_xy = topleft_xy; 00829 h->top_mb_xy = top_xy; 00830 h->topright_mb_xy= topright_xy; 00831 h->left_mb_xy[0] = left_xy[0]; 00832 h->left_mb_xy[1] = left_xy[1]; 00833 //FIXME do we need all in the context? 00834 00835 h->topleft_type = s->current_picture.mb_type[topleft_xy] ; 00836 h->top_type = s->current_picture.mb_type[top_xy] ; 00837 h->topright_type= s->current_picture.mb_type[topright_xy]; 00838 h->left_type[0] = s->current_picture.mb_type[left_xy[0]] ; 00839 h->left_type[1] = s->current_picture.mb_type[left_xy[1]] ; 00840 00841 if(FMO){ 00842 if(h->slice_table[topleft_xy ] != h->slice_num) h->topleft_type = 0; 00843 if(h->slice_table[top_xy ] != h->slice_num) h->top_type = 0; 00844 if(h->slice_table[left_xy[0] ] != h->slice_num) h->left_type[0] = h->left_type[1] = 0; 00845 }else{ 00846 if(h->slice_table[topleft_xy ] != h->slice_num){ 00847 h->topleft_type = 0; 00848 if(h->slice_table[top_xy ] != h->slice_num) h->top_type = 0; 00849 if(h->slice_table[left_xy[0] ] != h->slice_num) h->left_type[0] = h->left_type[1] = 0; 00850 } 00851 } 00852 if(h->slice_table[topright_xy] != h->slice_num) h->topright_type= 0; 00853 } 00854 00855 static void fill_decode_caches(H264Context *h, int mb_type){ 00856 MpegEncContext * const s = &h->s; 00857 int topleft_xy, top_xy, topright_xy, left_xy[2]; 00858 int topleft_type, top_type, topright_type, left_type[2]; 00859 const uint8_t * left_block= h->left_block; 00860 int i; 00861 00862 topleft_xy = h->topleft_mb_xy ; 00863 top_xy = h->top_mb_xy ; 00864 topright_xy = h->topright_mb_xy; 00865 left_xy[0] = h->left_mb_xy[0] ; 00866 left_xy[1] = h->left_mb_xy[1] ; 00867 topleft_type = h->topleft_type ; 00868 top_type = h->top_type ; 00869 topright_type= h->topright_type ; 00870 left_type[0] = h->left_type[0] ; 00871 left_type[1] = h->left_type[1] ; 00872 00873 if(!IS_SKIP(mb_type)){ 00874 if(IS_INTRA(mb_type)){ 00875 int type_mask= h->pps.constrained_intra_pred ? IS_INTRA(-1) : -1; 00876 h->topleft_samples_available= 00877 h->top_samples_available= 00878 h->left_samples_available= 0xFFFF; 00879 h->topright_samples_available= 0xEEEA; 00880 00881 if(!(top_type & type_mask)){ 00882 h->topleft_samples_available= 0xB3FF; 00883 h->top_samples_available= 0x33FF; 00884 h->topright_samples_available= 0x26EA; 00885 } 00886 if(IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[0])){ 00887 if(IS_INTERLACED(mb_type)){ 00888 if(!(left_type[0] & type_mask)){ 00889 h->topleft_samples_available&= 0xDFFF; 00890 h->left_samples_available&= 0x5FFF; 00891 } 00892 if(!(left_type[1] & type_mask)){ 00893 h->topleft_samples_available&= 0xFF5F; 00894 h->left_samples_available&= 0xFF5F; 00895 } 00896 }else{ 00897 int left_typei = s->current_picture.mb_type[left_xy[0] + s->mb_stride]; 00898 00899 assert(left_xy[0] == left_xy[1]); 00900 if(!((left_typei & type_mask) && (left_type[0] & type_mask))){ 00901 h->topleft_samples_available&= 0xDF5F; 00902 h->left_samples_available&= 0x5F5F; 00903 } 00904 } 00905 }else{ 00906 if(!(left_type[0] & type_mask)){ 00907 h->topleft_samples_available&= 0xDF5F; 00908 h->left_samples_available&= 0x5F5F; 00909 } 00910 } 00911 00912 if(!(topleft_type & type_mask)) 00913 h->topleft_samples_available&= 0x7FFF; 00914 00915 if(!(topright_type & type_mask)) 00916 h->topright_samples_available&= 0xFBFF; 00917 00918 if(IS_INTRA4x4(mb_type)){ 00919 if(IS_INTRA4x4(top_type)){ 00920 AV_COPY32(h->intra4x4_pred_mode_cache+4+8*0, h->intra4x4_pred_mode + h->mb2br_xy[top_xy]); 00921 }else{ 00922 h->intra4x4_pred_mode_cache[4+8*0]= 00923 h->intra4x4_pred_mode_cache[5+8*0]= 00924 h->intra4x4_pred_mode_cache[6+8*0]= 00925 h->intra4x4_pred_mode_cache[7+8*0]= 2 - 3*!(top_type & type_mask); 00926 } 00927 for(i=0; i<2; i++){ 00928 if(IS_INTRA4x4(left_type[i])){ 00929 int8_t *mode= h->intra4x4_pred_mode + h->mb2br_xy[left_xy[i]]; 00930 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= mode[6-left_block[0+2*i]]; 00931 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= mode[6-left_block[1+2*i]]; 00932 }else{ 00933 h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= 00934 h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= 2 - 3*!(left_type[i] & type_mask); 00935 } 00936 } 00937 } 00938 } 00939 00940 00941 /* 00942 0 . T T. T T T T 00943 1 L . .L . . . . 00944 2 L . .L . . . . 00945 3 . T TL . . . . 00946 4 L . .L . . . . 00947 5 L . .. . . . . 00948 */ 00949 //FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec) 00950 if(top_type){ 00951 AV_COPY32(&h->non_zero_count_cache[4+8* 0], &h->non_zero_count[top_xy][4*3]); 00952 if(CHROMA444){ 00953 AV_COPY32(&h->non_zero_count_cache[4+8* 5], &h->non_zero_count[top_xy][4* 7]); 00954 AV_COPY32(&h->non_zero_count_cache[4+8*10], &h->non_zero_count[top_xy][4*11]); 00955 }else{ 00956 AV_COPY32(&h->non_zero_count_cache[4+8* 5], &h->non_zero_count[top_xy][4* 5]); 00957 AV_COPY32(&h->non_zero_count_cache[4+8*10], &h->non_zero_count[top_xy][4* 9]); 00958 } 00959 }else{ 00960 uint32_t top_empty = CABAC && !IS_INTRA(mb_type) ? 0 : 0x40404040; 00961 AV_WN32A(&h->non_zero_count_cache[4+8* 0], top_empty); 00962 AV_WN32A(&h->non_zero_count_cache[4+8* 5], top_empty); 00963 AV_WN32A(&h->non_zero_count_cache[4+8*10], top_empty); 00964 } 00965 00966 for (i=0; i<2; i++) { 00967 if(left_type[i]){ 00968 h->non_zero_count_cache[3+8* 1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+0+2*i]]; 00969 h->non_zero_count_cache[3+8* 2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+1+2*i]]; 00970 if(CHROMA444){ 00971 h->non_zero_count_cache[3+8* 6 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+0+2*i]+4*4]; 00972 h->non_zero_count_cache[3+8* 7 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+1+2*i]+4*4]; 00973 h->non_zero_count_cache[3+8*11 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+0+2*i]+8*4]; 00974 h->non_zero_count_cache[3+8*12 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+1+2*i]+8*4]; 00975 }else{ 00976 h->non_zero_count_cache[3+8* 6 + 8*i]= h->non_zero_count[left_xy[i]][left_block[8+4+2*i]]; 00977 h->non_zero_count_cache[3+8*11 + 8*i]= h->non_zero_count[left_xy[i]][left_block[8+5+2*i]]; 00978 } 00979 }else{ 00980 h->non_zero_count_cache[3+8* 1 + 2*8*i]= 00981 h->non_zero_count_cache[3+8* 2 + 2*8*i]= 00982 h->non_zero_count_cache[3+8* 6 + 2*8*i]= 00983 h->non_zero_count_cache[3+8* 7 + 2*8*i]= 00984 h->non_zero_count_cache[3+8*11 + 2*8*i]= 00985 h->non_zero_count_cache[3+8*12 + 2*8*i]= CABAC && !IS_INTRA(mb_type) ? 0 : 64; 00986 } 00987 } 00988 00989 if( CABAC ) { 00990 // top_cbp 00991 if(top_type) { 00992 h->top_cbp = h->cbp_table[top_xy]; 00993 } else { 00994 h->top_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F; 00995 } 00996 // left_cbp 00997 if (left_type[0]) { 00998 h->left_cbp = (h->cbp_table[left_xy[0]] & 0x7F0) 00999 | ((h->cbp_table[left_xy[0]]>>(left_block[0]&(~1)))&2) 01000 | (((h->cbp_table[left_xy[1]]>>(left_block[2]&(~1)))&2) << 2); 01001 } else { 01002 h->left_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F; 01003 } 01004 } 01005 } 01006 01007 if(IS_INTER(mb_type) || (IS_DIRECT(mb_type) && h->direct_spatial_mv_pred)){ 01008 int list; 01009 for(list=0; list<h->list_count; list++){ 01010 if(!USES_LIST(mb_type, list)){ 01011 /*if(!h->mv_cache_clean[list]){ 01012 memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all? 01013 memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t)); 01014 h->mv_cache_clean[list]= 1; 01015 }*/ 01016 continue; 01017 } 01018 assert(!(IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred)); 01019 01020 h->mv_cache_clean[list]= 0; 01021 01022 if(USES_LIST(top_type, list)){ 01023 const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride; 01024 AV_COPY128(h->mv_cache[list][scan8[0] + 0 - 1*8], s->current_picture.motion_val[list][b_xy + 0]); 01025 h->ref_cache[list][scan8[0] + 0 - 1*8]= 01026 h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][4*top_xy + 2]; 01027 h->ref_cache[list][scan8[0] + 2 - 1*8]= 01028 h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][4*top_xy + 3]; 01029 }else{ 01030 AV_ZERO128(h->mv_cache[list][scan8[0] + 0 - 1*8]); 01031 AV_WN32A(&h->ref_cache[list][scan8[0] + 0 - 1*8], ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101); 01032 } 01033 01034 if(mb_type & (MB_TYPE_16x8|MB_TYPE_8x8)){ 01035 for(i=0; i<2; i++){ 01036 int cache_idx = scan8[0] - 1 + i*2*8; 01037 if(USES_LIST(left_type[i], list)){ 01038 const int b_xy= h->mb2b_xy[left_xy[i]] + 3; 01039 const int b8_xy= 4*left_xy[i] + 1; 01040 AV_COPY32(h->mv_cache[list][cache_idx ], s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0+i*2]]); 01041 AV_COPY32(h->mv_cache[list][cache_idx+8], s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1+i*2]]); 01042 h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + (left_block[0+i*2]&~1)]; 01043 h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + (left_block[1+i*2]&~1)]; 01044 }else{ 01045 AV_ZERO32(h->mv_cache [list][cache_idx ]); 01046 AV_ZERO32(h->mv_cache [list][cache_idx+8]); 01047 h->ref_cache[list][cache_idx ]= 01048 h->ref_cache[list][cache_idx+8]= (left_type[i]) ? LIST_NOT_USED : PART_NOT_AVAILABLE; 01049 } 01050 } 01051 }else{ 01052 if(USES_LIST(left_type[0], list)){ 01053 const int b_xy= h->mb2b_xy[left_xy[0]] + 3; 01054 const int b8_xy= 4*left_xy[0] + 1; 01055 AV_COPY32(h->mv_cache[list][scan8[0] - 1], s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0]]); 01056 h->ref_cache[list][scan8[0] - 1]= s->current_picture.ref_index[list][b8_xy + (left_block[0]&~1)]; 01057 }else{ 01058 AV_ZERO32(h->mv_cache [list][scan8[0] - 1]); 01059 h->ref_cache[list][scan8[0] - 1]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE; 01060 } 01061 } 01062 01063 if(USES_LIST(topright_type, list)){ 01064 const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride; 01065 AV_COPY32(h->mv_cache[list][scan8[0] + 4 - 1*8], s->current_picture.motion_val[list][b_xy]); 01066 h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][4*topright_xy + 2]; 01067 }else{ 01068 AV_ZERO32(h->mv_cache [list][scan8[0] + 4 - 1*8]); 01069 h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE; 01070 } 01071 if(h->ref_cache[list][scan8[0] + 4 - 1*8] < 0){ 01072 if(USES_LIST(topleft_type, list)){ 01073 const int b_xy = h->mb2b_xy [topleft_xy] + 3 + h->b_stride + (h->topleft_partition & 2*h->b_stride); 01074 const int b8_xy= 4*topleft_xy + 1 + (h->topleft_partition & 2); 01075 AV_COPY32(h->mv_cache[list][scan8[0] - 1 - 1*8], s->current_picture.motion_val[list][b_xy]); 01076 h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy]; 01077 }else{ 01078 AV_ZERO32(h->mv_cache[list][scan8[0] - 1 - 1*8]); 01079 h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE; 01080 } 01081 } 01082 01083 if((mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2)) && !FRAME_MBAFF) 01084 continue; 01085 01086 if(!(mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2))) { 01087 h->ref_cache[list][scan8[4 ]] = 01088 h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE; 01089 AV_ZERO32(h->mv_cache [list][scan8[4 ]]); 01090 AV_ZERO32(h->mv_cache [list][scan8[12]]); 01091 01092 if( CABAC ) { 01093 /* XXX beurk, Load mvd */ 01094 if(USES_LIST(top_type, list)){ 01095 const int b_xy= h->mb2br_xy[top_xy]; 01096 AV_COPY64(h->mvd_cache[list][scan8[0] + 0 - 1*8], h->mvd_table[list][b_xy + 0]); 01097 }else{ 01098 AV_ZERO64(h->mvd_cache[list][scan8[0] + 0 - 1*8]); 01099 } 01100 if(USES_LIST(left_type[0], list)){ 01101 const int b_xy= h->mb2br_xy[left_xy[0]] + 6; 01102 AV_COPY16(h->mvd_cache[list][scan8[0] - 1 + 0*8], h->mvd_table[list][b_xy - left_block[0]]); 01103 AV_COPY16(h->mvd_cache[list][scan8[0] - 1 + 1*8], h->mvd_table[list][b_xy - left_block[1]]); 01104 }else{ 01105 AV_ZERO16(h->mvd_cache [list][scan8[0] - 1 + 0*8]); 01106 AV_ZERO16(h->mvd_cache [list][scan8[0] - 1 + 1*8]); 01107 } 01108 if(USES_LIST(left_type[1], list)){ 01109 const int b_xy= h->mb2br_xy[left_xy[1]] + 6; 01110 AV_COPY16(h->mvd_cache[list][scan8[0] - 1 + 2*8], h->mvd_table[list][b_xy - left_block[2]]); 01111 AV_COPY16(h->mvd_cache[list][scan8[0] - 1 + 3*8], h->mvd_table[list][b_xy - left_block[3]]); 01112 }else{ 01113 AV_ZERO16(h->mvd_cache [list][scan8[0] - 1 + 2*8]); 01114 AV_ZERO16(h->mvd_cache [list][scan8[0] - 1 + 3*8]); 01115 } 01116 AV_ZERO16(h->mvd_cache [list][scan8[4 ]]); 01117 AV_ZERO16(h->mvd_cache [list][scan8[12]]); 01118 if(h->slice_type_nos == AV_PICTURE_TYPE_B){ 01119 fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, MB_TYPE_16x16>>1, 1); 01120 01121 if(IS_DIRECT(top_type)){ 01122 AV_WN32A(&h->direct_cache[scan8[0] - 1*8], 0x01010101u*(MB_TYPE_DIRECT2>>1)); 01123 }else if(IS_8X8(top_type)){ 01124 int b8_xy = 4*top_xy; 01125 h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy + 2]; 01126 h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 3]; 01127 }else{ 01128 AV_WN32A(&h->direct_cache[scan8[0] - 1*8], 0x01010101*(MB_TYPE_16x16>>1)); 01129 } 01130 01131 if(IS_DIRECT(left_type[0])) 01132 h->direct_cache[scan8[0] - 1 + 0*8]= MB_TYPE_DIRECT2>>1; 01133 else if(IS_8X8(left_type[0])) 01134 h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[4*left_xy[0] + 1 + (left_block[0]&~1)]; 01135 else 01136 h->direct_cache[scan8[0] - 1 + 0*8]= MB_TYPE_16x16>>1; 01137 01138 if(IS_DIRECT(left_type[1])) 01139 h->direct_cache[scan8[0] - 1 + 2*8]= MB_TYPE_DIRECT2>>1; 01140 else if(IS_8X8(left_type[1])) 01141 h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[4*left_xy[1] + 1 + (left_block[2]&~1)]; 01142 else 01143 h->direct_cache[scan8[0] - 1 + 2*8]= MB_TYPE_16x16>>1; 01144 } 01145 } 01146 } 01147 if(FRAME_MBAFF){ 01148 #define MAP_MVS\ 01149 MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\ 01150 MAP_F2F(scan8[0] + 0 - 1*8, top_type)\ 01151 MAP_F2F(scan8[0] + 1 - 1*8, top_type)\ 01152 MAP_F2F(scan8[0] + 2 - 1*8, top_type)\ 01153 MAP_F2F(scan8[0] + 3 - 1*8, top_type)\ 01154 MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\ 01155 MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\ 01156 MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\ 01157 MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\ 01158 MAP_F2F(scan8[0] - 1 + 3*8, left_type[1]) 01159 if(MB_FIELD){ 01160 #define MAP_F2F(idx, mb_type)\ 01161 if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\ 01162 h->ref_cache[list][idx] <<= 1;\ 01163 h->mv_cache[list][idx][1] /= 2;\ 01164 h->mvd_cache[list][idx][1] >>=1;\ 01165 } 01166 MAP_MVS 01167 #undef MAP_F2F 01168 }else{ 01169 #define MAP_F2F(idx, mb_type)\ 01170 if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\ 01171 h->ref_cache[list][idx] >>= 1;\ 01172 h->mv_cache[list][idx][1] <<= 1;\ 01173 h->mvd_cache[list][idx][1] <<= 1;\ 01174 } 01175 MAP_MVS 01176 #undef MAP_F2F 01177 } 01178 } 01179 } 01180 } 01181 01182 h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]); 01183 } 01184 01188 static inline int pred_intra_mode(H264Context *h, int n){ 01189 const int index8= scan8[n]; 01190 const int left= h->intra4x4_pred_mode_cache[index8 - 1]; 01191 const int top = h->intra4x4_pred_mode_cache[index8 - 8]; 01192 const int min= FFMIN(left, top); 01193 01194 tprintf(h->s.avctx, "mode:%d %d min:%d\n", left ,top, min); 01195 01196 if(min<0) return DC_PRED; 01197 else return min; 01198 } 01199 01200 static inline void write_back_non_zero_count(H264Context *h){ 01201 const int mb_xy= h->mb_xy; 01202 01203 AV_COPY32(&h->non_zero_count[mb_xy][ 0], &h->non_zero_count_cache[4+8* 1]); 01204 AV_COPY32(&h->non_zero_count[mb_xy][ 4], &h->non_zero_count_cache[4+8* 2]); 01205 AV_COPY32(&h->non_zero_count[mb_xy][ 8], &h->non_zero_count_cache[4+8* 3]); 01206 AV_COPY32(&h->non_zero_count[mb_xy][12], &h->non_zero_count_cache[4+8* 4]); 01207 AV_COPY32(&h->non_zero_count[mb_xy][16], &h->non_zero_count_cache[4+8* 6]); 01208 AV_COPY32(&h->non_zero_count[mb_xy][20], &h->non_zero_count_cache[4+8* 7]); 01209 AV_COPY32(&h->non_zero_count[mb_xy][32], &h->non_zero_count_cache[4+8*11]); 01210 AV_COPY32(&h->non_zero_count[mb_xy][36], &h->non_zero_count_cache[4+8*12]); 01211 01212 if(CHROMA444){ 01213 AV_COPY32(&h->non_zero_count[mb_xy][24], &h->non_zero_count_cache[4+8* 8]); 01214 AV_COPY32(&h->non_zero_count[mb_xy][28], &h->non_zero_count_cache[4+8* 9]); 01215 AV_COPY32(&h->non_zero_count[mb_xy][40], &h->non_zero_count_cache[4+8*13]); 01216 AV_COPY32(&h->non_zero_count[mb_xy][44], &h->non_zero_count_cache[4+8*14]); 01217 } 01218 } 01219 01220 static inline void write_back_motion(H264Context *h, int mb_type){ 01221 MpegEncContext * const s = &h->s; 01222 const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride; //try mb2b(8)_xy 01223 const int b8_xy= 4*h->mb_xy; 01224 int list; 01225 01226 if(!USES_LIST(mb_type, 0)) 01227 fill_rectangle(&s->current_picture.ref_index[0][b8_xy], 2, 2, 2, (uint8_t)LIST_NOT_USED, 1); 01228 01229 for(list=0; list<h->list_count; list++){ 01230 int y, b_stride; 01231 int16_t (*mv_dst)[2]; 01232 int16_t (*mv_src)[2]; 01233 01234 if(!USES_LIST(mb_type, list)) 01235 continue; 01236 01237 b_stride = h->b_stride; 01238 mv_dst = &s->current_picture.motion_val[list][b_xy]; 01239 mv_src = &h->mv_cache[list][scan8[0]]; 01240 for(y=0; y<4; y++){ 01241 AV_COPY128(mv_dst + y*b_stride, mv_src + 8*y); 01242 } 01243 if( CABAC ) { 01244 uint8_t (*mvd_dst)[2] = &h->mvd_table[list][FMO ? 8*h->mb_xy : h->mb2br_xy[h->mb_xy]]; 01245 uint8_t (*mvd_src)[2] = &h->mvd_cache[list][scan8[0]]; 01246 if(IS_SKIP(mb_type)) 01247 AV_ZERO128(mvd_dst); 01248 else{ 01249 AV_COPY64(mvd_dst, mvd_src + 8*3); 01250 AV_COPY16(mvd_dst + 3 + 3, mvd_src + 3 + 8*0); 01251 AV_COPY16(mvd_dst + 3 + 2, mvd_src + 3 + 8*1); 01252 AV_COPY16(mvd_dst + 3 + 1, mvd_src + 3 + 8*2); 01253 } 01254 } 01255 01256 { 01257 int8_t *ref_index = &s->current_picture.ref_index[list][b8_xy]; 01258 ref_index[0+0*2]= h->ref_cache[list][scan8[0]]; 01259 ref_index[1+0*2]= h->ref_cache[list][scan8[4]]; 01260 ref_index[0+1*2]= h->ref_cache[list][scan8[8]]; 01261 ref_index[1+1*2]= h->ref_cache[list][scan8[12]]; 01262 } 01263 } 01264 01265 if(h->slice_type_nos == AV_PICTURE_TYPE_B && CABAC){ 01266 if(IS_8X8(mb_type)){ 01267 uint8_t *direct_table = &h->direct_table[4*h->mb_xy]; 01268 direct_table[1] = h->sub_mb_type[1]>>1; 01269 direct_table[2] = h->sub_mb_type[2]>>1; 01270 direct_table[3] = h->sub_mb_type[3]>>1; 01271 } 01272 } 01273 } 01274 01275 static inline int get_dct8x8_allowed(H264Context *h){ 01276 if(h->sps.direct_8x8_inference_flag) 01277 return !(AV_RN64A(h->sub_mb_type) & ((MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8 )*0x0001000100010001ULL)); 01278 else 01279 return !(AV_RN64A(h->sub_mb_type) & ((MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8|MB_TYPE_DIRECT2)*0x0001000100010001ULL)); 01280 } 01281 01285 static void av_unused decode_mb_skip(H264Context *h){ 01286 MpegEncContext * const s = &h->s; 01287 const int mb_xy= h->mb_xy; 01288 int mb_type=0; 01289 01290 memset(h->non_zero_count[mb_xy], 0, 48); 01291 01292 if(MB_FIELD) 01293 mb_type|= MB_TYPE_INTERLACED; 01294 01295 if( h->slice_type_nos == AV_PICTURE_TYPE_B ) 01296 { 01297 // just for fill_caches. pred_direct_motion will set the real mb_type 01298 mb_type|= MB_TYPE_L0L1|MB_TYPE_DIRECT2|MB_TYPE_SKIP; 01299 if(h->direct_spatial_mv_pred){ 01300 fill_decode_neighbors(h, mb_type); 01301 fill_decode_caches(h, mb_type); //FIXME check what is needed and what not ... 01302 } 01303 ff_h264_pred_direct_motion(h, &mb_type); 01304 mb_type|= MB_TYPE_SKIP; 01305 } 01306 else 01307 { 01308 int mx, my; 01309 mb_type|= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_SKIP; 01310 01311 fill_decode_neighbors(h, mb_type); 01312 fill_decode_caches(h, mb_type); //FIXME check what is needed and what not ... 01313 pred_pskip_motion(h, &mx, &my); 01314 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1); 01315 fill_rectangle( h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx,my), 4); 01316 } 01317 01318 write_back_motion(h, mb_type); 01319 s->current_picture.mb_type[mb_xy]= mb_type; 01320 s->current_picture.qscale_table[mb_xy]= s->qscale; 01321 h->slice_table[ mb_xy ]= h->slice_num; 01322 h->prev_mb_skipped= 1; 01323 } 01324 01325 #include "h264_mvpred.h" //For pred_pskip_motion() 01326 01327 #endif /* AVCODEC_H264_H */