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- /*
- * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
- * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
- /**
- * @file libavcodec/h264.h
- * H.264 / AVC / MPEG4 part10 codec.
- * @author Michael Niedermayer <michaelni@gmx.at>
- */
-
- #ifndef AVCODEC_H264_H
- #define AVCODEC_H264_H
-
- #include "dsputil.h"
- #include "cabac.h"
- #include "mpegvideo.h"
- #include "h264pred.h"
- #include "rectangle.h"
-
- #define interlaced_dct interlaced_dct_is_a_bad_name
- #define mb_intra mb_intra_is_not_initialized_see_mb_type
-
- #define LUMA_DC_BLOCK_INDEX 25
- #define CHROMA_DC_BLOCK_INDEX 26
-
- #define CHROMA_DC_COEFF_TOKEN_VLC_BITS 8
- #define COEFF_TOKEN_VLC_BITS 8
- #define TOTAL_ZEROS_VLC_BITS 9
- #define CHROMA_DC_TOTAL_ZEROS_VLC_BITS 3
- #define RUN_VLC_BITS 3
- #define RUN7_VLC_BITS 6
-
- #define MAX_SPS_COUNT 32
- #define MAX_PPS_COUNT 256
-
- #define MAX_MMCO_COUNT 66
-
- #define MAX_DELAYED_PIC_COUNT 16
-
- /* Compiling in interlaced support reduces the speed
- * of progressive decoding by about 2%. */
- #define ALLOW_INTERLACE
-
- #define ALLOW_NOCHROMA
-
- /**
- * The maximum number of slices supported by the decoder.
- * must be a power of 2
- */
- #define MAX_SLICES 16
-
- #ifdef ALLOW_INTERLACE
- #define MB_MBAFF h->mb_mbaff
- #define MB_FIELD h->mb_field_decoding_flag
- #define FRAME_MBAFF h->mb_aff_frame
- #define FIELD_PICTURE (s->picture_structure != PICT_FRAME)
- #else
- #define MB_MBAFF 0
- #define MB_FIELD 0
- #define FRAME_MBAFF 0
- #define FIELD_PICTURE 0
- #undef IS_INTERLACED
- #define IS_INTERLACED(mb_type) 0
- #endif
- #define FIELD_OR_MBAFF_PICTURE (FRAME_MBAFF || FIELD_PICTURE)
-
- #ifdef ALLOW_NOCHROMA
- #define CHROMA h->sps.chroma_format_idc
- #else
- #define CHROMA 1
- #endif
-
- #ifndef CABAC
- #define CABAC h->pps.cabac
- #endif
-
- #define EXTENDED_SAR 255
-
- #define MB_TYPE_REF0 MB_TYPE_ACPRED //dirty but it fits in 16 bit
- #define MB_TYPE_8x8DCT 0x01000000
- #define IS_REF0(a) ((a) & MB_TYPE_REF0)
- #define IS_8x8DCT(a) ((a) & MB_TYPE_8x8DCT)
-
- /**
- * Value of Picture.reference when Picture is not a reference picture, but
- * is held for delayed output.
- */
- #define DELAYED_PIC_REF 4
-
-
- /* NAL unit types */
- enum {
- NAL_SLICE=1,
- NAL_DPA,
- NAL_DPB,
- NAL_DPC,
- NAL_IDR_SLICE,
- NAL_SEI,
- NAL_SPS,
- NAL_PPS,
- NAL_AUD,
- NAL_END_SEQUENCE,
- NAL_END_STREAM,
- NAL_FILLER_DATA,
- NAL_SPS_EXT,
- NAL_AUXILIARY_SLICE=19
- };
-
- /**
- * SEI message types
- */
- typedef enum {
- SEI_BUFFERING_PERIOD = 0, ///< buffering period (H.264, D.1.1)
- SEI_TYPE_PIC_TIMING = 1, ///< picture timing
- SEI_TYPE_USER_DATA_UNREGISTERED = 5, ///< unregistered user data
- SEI_TYPE_RECOVERY_POINT = 6 ///< recovery point (frame # to decoder sync)
- } SEI_Type;
-
- /**
- * pic_struct in picture timing SEI message
- */
- typedef enum {
- SEI_PIC_STRUCT_FRAME = 0, ///< 0: %frame
- SEI_PIC_STRUCT_TOP_FIELD = 1, ///< 1: top field
- SEI_PIC_STRUCT_BOTTOM_FIELD = 2, ///< 2: bottom field
- SEI_PIC_STRUCT_TOP_BOTTOM = 3, ///< 3: top field, bottom field, in that order
- SEI_PIC_STRUCT_BOTTOM_TOP = 4, ///< 4: bottom field, top field, in that order
- SEI_PIC_STRUCT_TOP_BOTTOM_TOP = 5, ///< 5: top field, bottom field, top field repeated, in that order
- SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM = 6, ///< 6: bottom field, top field, bottom field repeated, in that order
- SEI_PIC_STRUCT_FRAME_DOUBLING = 7, ///< 7: %frame doubling
- SEI_PIC_STRUCT_FRAME_TRIPLING = 8 ///< 8: %frame tripling
- } SEI_PicStructType;
-
- /**
- * Sequence parameter set
- */
- typedef struct SPS{
-
- int profile_idc;
- int level_idc;
- int chroma_format_idc;
- int transform_bypass; ///< qpprime_y_zero_transform_bypass_flag
- int log2_max_frame_num; ///< log2_max_frame_num_minus4 + 4
- int poc_type; ///< pic_order_cnt_type
- int log2_max_poc_lsb; ///< log2_max_pic_order_cnt_lsb_minus4
- int delta_pic_order_always_zero_flag;
- int offset_for_non_ref_pic;
- int offset_for_top_to_bottom_field;
- int poc_cycle_length; ///< num_ref_frames_in_pic_order_cnt_cycle
- int ref_frame_count; ///< num_ref_frames
- int gaps_in_frame_num_allowed_flag;
- int mb_width; ///< pic_width_in_mbs_minus1 + 1
- int mb_height; ///< pic_height_in_map_units_minus1 + 1
- int frame_mbs_only_flag;
- int mb_aff; ///<mb_adaptive_frame_field_flag
- int direct_8x8_inference_flag;
- int crop; ///< frame_cropping_flag
- unsigned int crop_left; ///< frame_cropping_rect_left_offset
- unsigned int crop_right; ///< frame_cropping_rect_right_offset
- unsigned int crop_top; ///< frame_cropping_rect_top_offset
- unsigned int crop_bottom; ///< frame_cropping_rect_bottom_offset
- int vui_parameters_present_flag;
- AVRational sar;
- int video_signal_type_present_flag;
- int full_range;
- int colour_description_present_flag;
- enum AVColorPrimaries color_primaries;
- enum AVColorTransferCharacteristic color_trc;
- enum AVColorSpace colorspace;
- int timing_info_present_flag;
- uint32_t num_units_in_tick;
- uint32_t time_scale;
- int fixed_frame_rate_flag;
- short offset_for_ref_frame[256]; //FIXME dyn aloc?
- int bitstream_restriction_flag;
- int num_reorder_frames;
- int scaling_matrix_present;
- uint8_t scaling_matrix4[6][16];
- uint8_t scaling_matrix8[2][64];
- int nal_hrd_parameters_present_flag;
- int vcl_hrd_parameters_present_flag;
- int pic_struct_present_flag;
- int time_offset_length;
- int cpb_cnt; ///< See H.264 E.1.2
- int initial_cpb_removal_delay_length; ///< initial_cpb_removal_delay_length_minus1 +1
- int cpb_removal_delay_length; ///< cpb_removal_delay_length_minus1 + 1
- int dpb_output_delay_length; ///< dpb_output_delay_length_minus1 + 1
- int bit_depth_luma; ///< bit_depth_luma_minus8 + 8
- int bit_depth_chroma; ///< bit_depth_chroma_minus8 + 8
- int residual_color_transform_flag; ///< residual_colour_transform_flag
- }SPS;
-
- /**
- * Picture parameter set
- */
- typedef struct PPS{
- unsigned int sps_id;
- int cabac; ///< entropy_coding_mode_flag
- int pic_order_present; ///< pic_order_present_flag
- int slice_group_count; ///< num_slice_groups_minus1 + 1
- int mb_slice_group_map_type;
- unsigned int ref_count[2]; ///< num_ref_idx_l0/1_active_minus1 + 1
- int weighted_pred; ///< weighted_pred_flag
- int weighted_bipred_idc;
- int init_qp; ///< pic_init_qp_minus26 + 26
- int init_qs; ///< pic_init_qs_minus26 + 26
- int chroma_qp_index_offset[2];
- int deblocking_filter_parameters_present; ///< deblocking_filter_parameters_present_flag
- int constrained_intra_pred; ///< constrained_intra_pred_flag
- int redundant_pic_cnt_present; ///< redundant_pic_cnt_present_flag
- int transform_8x8_mode; ///< transform_8x8_mode_flag
- uint8_t scaling_matrix4[6][16];
- uint8_t scaling_matrix8[2][64];
- uint8_t chroma_qp_table[2][64]; ///< pre-scaled (with chroma_qp_index_offset) version of qp_table
- int chroma_qp_diff;
- }PPS;
-
- /**
- * Memory management control operation opcode.
- */
- typedef enum MMCOOpcode{
- MMCO_END=0,
- MMCO_SHORT2UNUSED,
- MMCO_LONG2UNUSED,
- MMCO_SHORT2LONG,
- MMCO_SET_MAX_LONG,
- MMCO_RESET,
- MMCO_LONG,
- } MMCOOpcode;
-
- /**
- * Memory management control operation.
- */
- typedef struct MMCO{
- MMCOOpcode opcode;
- int short_pic_num; ///< pic_num without wrapping (pic_num & max_pic_num)
- int long_arg; ///< index, pic_num, or num long refs depending on opcode
- } MMCO;
-
- /**
- * H264Context
- */
- typedef struct H264Context{
- MpegEncContext s;
- int nal_ref_idc;
- int nal_unit_type;
- uint8_t *rbsp_buffer[2];
- unsigned int rbsp_buffer_size[2];
-
- /**
- * Used to parse AVC variant of h264
- */
- int is_avc; ///< this flag is != 0 if codec is avc1
- int got_avcC; ///< flag used to parse avcC data only once
- int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
-
- int chroma_qp[2]; //QPc
-
- int qp_thresh; ///< QP threshold to skip loopfilter
-
- int prev_mb_skipped;
- int next_mb_skipped;
-
- //prediction stuff
- int chroma_pred_mode;
- int intra16x16_pred_mode;
-
- int top_mb_xy;
- int left_mb_xy[2];
-
- int8_t intra4x4_pred_mode_cache[5*8];
- int8_t (*intra4x4_pred_mode)[8];
- H264PredContext hpc;
- unsigned int topleft_samples_available;
- unsigned int top_samples_available;
- unsigned int topright_samples_available;
- unsigned int left_samples_available;
- uint8_t (*top_borders[2])[16+2*8];
- uint8_t left_border[2*(17+2*9)];
-
- /**
- * non zero coeff count cache.
- * is 64 if not available.
- */
- DECLARE_ALIGNED_8(uint8_t, non_zero_count_cache[6*8]);
- uint8_t (*non_zero_count)[16];
-
- /**
- * Motion vector cache.
- */
- DECLARE_ALIGNED_8(int16_t, mv_cache[2][5*8][2]);
- DECLARE_ALIGNED_8(int8_t, ref_cache[2][5*8]);
- #define LIST_NOT_USED -1 //FIXME rename?
- #define PART_NOT_AVAILABLE -2
-
- /**
- * is 1 if the specific list MV&references are set to 0,0,-2.
- */
- int mv_cache_clean[2];
-
- /**
- * number of neighbors (top and/or left) that used 8x8 dct
- */
- int neighbor_transform_size;
-
- /**
- * block_offset[ 0..23] for frame macroblocks
- * block_offset[24..47] for field macroblocks
- */
- int block_offset[2*(16+8)];
-
- uint32_t *mb2b_xy; //FIXME are these 4 a good idea?
- uint32_t *mb2b8_xy;
- int b_stride; //FIXME use s->b4_stride
- int b8_stride;
-
- int mb_linesize; ///< may be equal to s->linesize or s->linesize*2, for mbaff
- int mb_uvlinesize;
-
- int emu_edge_width;
- int emu_edge_height;
-
- int halfpel_flag;
- int thirdpel_flag;
-
- int unknown_svq3_flag;
- int next_slice_index;
-
- SPS *sps_buffers[MAX_SPS_COUNT];
- SPS sps; ///< current sps
-
- PPS *pps_buffers[MAX_PPS_COUNT];
- /**
- * current pps
- */
- PPS pps; //FIXME move to Picture perhaps? (->no) do we need that?
-
- uint32_t dequant4_buffer[6][52][16];
- uint32_t dequant8_buffer[2][52][64];
- uint32_t (*dequant4_coeff[6])[16];
- uint32_t (*dequant8_coeff[2])[64];
- int dequant_coeff_pps; ///< reinit tables when pps changes
-
- int slice_num;
- uint16_t *slice_table_base;
- uint16_t *slice_table; ///< slice_table_base + 2*mb_stride + 1
- int slice_type;
- int slice_type_nos; ///< S free slice type (SI/SP are remapped to I/P)
- int slice_type_fixed;
-
- //interlacing specific flags
- int mb_aff_frame;
- int mb_field_decoding_flag;
- int mb_mbaff; ///< mb_aff_frame && mb_field_decoding_flag
-
- DECLARE_ALIGNED_8(uint16_t, sub_mb_type[4]);
-
- //POC stuff
- int poc_lsb;
- int poc_msb;
- int delta_poc_bottom;
- int delta_poc[2];
- int frame_num;
- int prev_poc_msb; ///< poc_msb of the last reference pic for POC type 0
- int prev_poc_lsb; ///< poc_lsb of the last reference pic for POC type 0
- int frame_num_offset; ///< for POC type 2
- int prev_frame_num_offset; ///< for POC type 2
- int prev_frame_num; ///< frame_num of the last pic for POC type 1/2
-
- /**
- * frame_num for frames or 2*frame_num+1 for field pics.
- */
- int curr_pic_num;
-
- /**
- * max_frame_num or 2*max_frame_num for field pics.
- */
- int max_pic_num;
-
- //Weighted pred stuff
- int use_weight;
- int use_weight_chroma;
- int luma_log2_weight_denom;
- int chroma_log2_weight_denom;
- int luma_weight[2][48];
- int luma_offset[2][48];
- int chroma_weight[2][48][2];
- int chroma_offset[2][48][2];
- int implicit_weight[48][48];
-
- //deblock
- int deblocking_filter; ///< disable_deblocking_filter_idc with 1<->0
- int slice_alpha_c0_offset;
- int slice_beta_offset;
-
- int redundant_pic_count;
-
- int direct_spatial_mv_pred;
- int dist_scale_factor[16];
- int dist_scale_factor_field[2][32];
- int map_col_to_list0[2][16+32];
- int map_col_to_list0_field[2][2][16+32];
-
- /**
- * num_ref_idx_l0/1_active_minus1 + 1
- */
- unsigned int ref_count[2]; ///< counts frames or fields, depending on current mb mode
- unsigned int list_count;
- Picture *short_ref[32];
- Picture *long_ref[32];
- Picture default_ref_list[2][32]; ///< base reference list for all slices of a coded picture
- Picture ref_list[2][48]; /**< 0..15: frame refs, 16..47: mbaff field refs.
- Reordered version of default_ref_list
- according to picture reordering in slice header */
- int ref2frm[MAX_SLICES][2][64]; ///< reference to frame number lists, used in the loop filter, the first 2 are for -2,-1
- Picture *delayed_pic[MAX_DELAYED_PIC_COUNT+2]; //FIXME size?
- int outputed_poc;
-
- /**
- * memory management control operations buffer.
- */
- MMCO mmco[MAX_MMCO_COUNT];
- int mmco_index;
-
- int long_ref_count; ///< number of actual long term references
- int short_ref_count; ///< number of actual short term references
-
- //data partitioning
- GetBitContext intra_gb;
- GetBitContext inter_gb;
- GetBitContext *intra_gb_ptr;
- GetBitContext *inter_gb_ptr;
-
- DECLARE_ALIGNED_16(DCTELEM, mb[16*24]);
- 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
-
- /**
- * Cabac
- */
- CABACContext cabac;
- uint8_t cabac_state[460];
- int cabac_init_idc;
-
- /* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0,1,2), 0x0? luma_cbp */
- uint16_t *cbp_table;
- int cbp;
- int top_cbp;
- int left_cbp;
- /* chroma_pred_mode for i4x4 or i16x16, else 0 */
- uint8_t *chroma_pred_mode_table;
- int last_qscale_diff;
- int16_t (*mvd_table[2])[2];
- DECLARE_ALIGNED_8(int16_t, mvd_cache[2][5*8][2]);
- uint8_t *direct_table;
- uint8_t direct_cache[5*8];
-
- uint8_t zigzag_scan[16];
- uint8_t zigzag_scan8x8[64];
- uint8_t zigzag_scan8x8_cavlc[64];
- uint8_t field_scan[16];
- uint8_t field_scan8x8[64];
- uint8_t field_scan8x8_cavlc[64];
- const uint8_t *zigzag_scan_q0;
- const uint8_t *zigzag_scan8x8_q0;
- const uint8_t *zigzag_scan8x8_cavlc_q0;
- const uint8_t *field_scan_q0;
- const uint8_t *field_scan8x8_q0;
- const uint8_t *field_scan8x8_cavlc_q0;
-
- int x264_build;
-
- /**
- * @defgroup multithreading Members for slice based multithreading
- * @{
- */
- struct H264Context *thread_context[MAX_THREADS];
-
- /**
- * current slice number, used to initalize slice_num of each thread/context
- */
- int current_slice;
-
- /**
- * Max number of threads / contexts.
- * This is equal to AVCodecContext.thread_count unless
- * multithreaded decoding is impossible, in which case it is
- * reduced to 1.
- */
- int max_contexts;
-
- /**
- * 1 if the single thread fallback warning has already been
- * displayed, 0 otherwise.
- */
- int single_decode_warning;
-
- int last_slice_type;
- /** @} */
-
- int mb_xy;
-
- uint32_t svq3_watermark_key;
-
- /**
- * pic_struct in picture timing SEI message
- */
- SEI_PicStructType sei_pic_struct;
-
- /**
- * Complement sei_pic_struct
- * SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced frames.
- * However, soft telecined frames may have these values.
- * This is used in an attempt to flag soft telecine progressive.
- */
- int prev_interlaced_frame;
-
- /**
- * Bit set of clock types for fields/frames in picture timing SEI message.
- * For each found ct_type, appropriate bit is set (e.g., bit 1 for
- * interlaced).
- */
- int sei_ct_type;
-
- /**
- * dpb_output_delay in picture timing SEI message, see H.264 C.2.2
- */
- int sei_dpb_output_delay;
-
- /**
- * cpb_removal_delay in picture timing SEI message, see H.264 C.1.2
- */
- int sei_cpb_removal_delay;
-
- /**
- * recovery_frame_cnt from SEI message
- *
- * Set to -1 if no recovery point SEI message found or to number of frames
- * before playback synchronizes. Frames having recovery point are key
- * frames.
- */
- int sei_recovery_frame_cnt;
-
- int is_complex;
-
- int luma_weight_flag[2]; ///< 7.4.3.2 luma_weight_lX_flag
- int chroma_weight_flag[2]; ///< 7.4.3.2 chroma_weight_lX_flag
-
- // Timestamp stuff
- int sei_buffering_period_present; ///< Buffering period SEI flag
- int initial_cpb_removal_delay[32]; ///< Initial timestamps for CPBs
- }H264Context;
-
-
- extern const uint8_t ff_h264_chroma_qp[52];
-
-
- /**
- * Decode SEI
- */
- int ff_h264_decode_sei(H264Context *h);
-
- /**
- * Decode SPS
- */
- int ff_h264_decode_seq_parameter_set(H264Context *h);
-
- /**
- * Decode PPS
- */
- int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length);
-
- /**
- * Decodes a network abstraction layer unit.
- * @param consumed is the number of bytes used as input
- * @param length is the length of the array
- * @param dst_length is the number of decoded bytes FIXME here or a decode rbsp tailing?
- * @returns decoded bytes, might be src+1 if no escapes
- */
- const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length);
-
- /**
- * identifies the exact end of the bitstream
- * @return the length of the trailing, or 0 if damaged
- */
- int ff_h264_decode_rbsp_trailing(H264Context *h, const uint8_t *src);
-
- /**
- * frees any data that may have been allocated in the H264 context like SPS, PPS etc.
- */
- av_cold void ff_h264_free_context(H264Context *h);
-
- /**
- * reconstructs bitstream slice_type.
- */
- int ff_h264_get_slice_type(H264Context *h);
-
- /**
- * allocates tables.
- * needs width/height
- */
- int ff_h264_alloc_tables(H264Context *h);
-
- /**
- * fills the default_ref_list.
- */
- int ff_h264_fill_default_ref_list(H264Context *h);
-
- int ff_h264_decode_ref_pic_list_reordering(H264Context *h);
- void ff_h264_fill_mbaff_ref_list(H264Context *h);
- void ff_h264_remove_all_refs(H264Context *h);
-
- /**
- * Executes the reference picture marking (memory management control operations).
- */
- int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count);
-
- int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb);
-
-
- /**
- * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
- */
- int ff_h264_check_intra4x4_pred_mode(H264Context *h);
-
- /**
- * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
- */
- int ff_h264_check_intra_pred_mode(H264Context *h, int mode);
-
- void ff_h264_write_back_intra_pred_mode(H264Context *h);
- void ff_h264_hl_decode_mb(H264Context *h);
- int ff_h264_frame_start(H264Context *h);
- av_cold int ff_h264_decode_init(AVCodecContext *avctx);
- av_cold int ff_h264_decode_end(AVCodecContext *avctx);
- av_cold void ff_h264_decode_init_vlc(void);
-
- /**
- * decodes a macroblock
- * @returns 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
- */
- int ff_h264_decode_mb_cavlc(H264Context *h);
-
- /**
- * decodes a CABAC coded macroblock
- * @returns 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
- */
- int ff_h264_decode_mb_cabac(H264Context *h);
-
- void ff_h264_init_cabac_states(H264Context *h);
-
- void ff_h264_direct_dist_scale_factor(H264Context * const h);
- void ff_h264_direct_ref_list_init(H264Context * const h);
- void ff_h264_pred_direct_motion(H264Context * const h, int *mb_type);
-
- 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);
- 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);
-
- /**
- * Reset SEI values at the beginning of the frame.
- *
- * @param h H.264 context.
- */
- void ff_h264_reset_sei(H264Context *h);
-
-
- /*
- o-o o-o
- / / /
- o-o o-o
- ,---'
- o-o o-o
- / / /
- o-o o-o
- */
- //This table must be here because scan8[constant] must be known at compiletime
- static const uint8_t scan8[16 + 2*4]={
- 4+1*8, 5+1*8, 4+2*8, 5+2*8,
- 6+1*8, 7+1*8, 6+2*8, 7+2*8,
- 4+3*8, 5+3*8, 4+4*8, 5+4*8,
- 6+3*8, 7+3*8, 6+4*8, 7+4*8,
- 1+1*8, 2+1*8,
- 1+2*8, 2+2*8,
- 1+4*8, 2+4*8,
- 1+5*8, 2+5*8,
- };
-
- static av_always_inline uint32_t pack16to32(int a, int b){
- #if HAVE_BIGENDIAN
- return (b&0xFFFF) + (a<<16);
- #else
- return (a&0xFFFF) + (b<<16);
- #endif
- }
-
- /**
- * gets the chroma qp.
- */
- static inline int get_chroma_qp(H264Context *h, int t, int qscale){
- return h->pps.chroma_qp_table[t][qscale];
- }
-
- static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my);
-
- static void fill_caches(H264Context *h, int mb_type, int for_deblock){
- MpegEncContext * const s = &h->s;
- const int mb_xy= h->mb_xy;
- int topleft_xy, top_xy, topright_xy, left_xy[2];
- int topleft_type, top_type, topright_type, left_type[2];
- const uint8_t * left_block;
- int topleft_partition= -1;
- int i;
- static const uint8_t left_block_options[4][8]={
- {0,1,2,3,7,10,8,11},
- {2,2,3,3,8,11,8,11},
- {0,0,1,1,7,10,7,10},
- {0,2,0,2,7,10,7,10}
- };
-
- top_xy = mb_xy - (s->mb_stride << FIELD_PICTURE);
-
- //FIXME deblocking could skip the intra and nnz parts.
- if(for_deblock && (h->slice_num == 1 || h->slice_table[mb_xy] == h->slice_table[top_xy]) && !FRAME_MBAFF)
- return;
-
- /* Wow, what a mess, why didn't they simplify the interlacing & intra
- * stuff, I can't imagine that these complex rules are worth it. */
-
- topleft_xy = top_xy - 1;
- topright_xy= top_xy + 1;
- left_xy[1] = left_xy[0] = mb_xy-1;
- left_block = left_block_options[0];
- if(FRAME_MBAFF){
- const int pair_xy = s->mb_x + (s->mb_y & ~1)*s->mb_stride;
- const int top_pair_xy = pair_xy - s->mb_stride;
- const int topleft_pair_xy = top_pair_xy - 1;
- const int topright_pair_xy = top_pair_xy + 1;
- const int topleft_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[topleft_pair_xy]);
- const int top_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[top_pair_xy]);
- const int topright_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[topright_pair_xy]);
- const int left_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[pair_xy-1]);
- const int curr_mb_field_flag = IS_INTERLACED(mb_type);
- const int bottom = (s->mb_y & 1);
- 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);
-
- if (curr_mb_field_flag && (bottom || top_mb_field_flag)){
- top_xy -= s->mb_stride;
- }
- if (curr_mb_field_flag && (bottom || topleft_mb_field_flag)){
- topleft_xy -= s->mb_stride;
- } else if(bottom && !curr_mb_field_flag && left_mb_field_flag) {
- topleft_xy += s->mb_stride;
- // take top left mv from the middle of the mb, as opposed to all other modes which use the bottom right partition
- topleft_partition = 0;
- }
- if (curr_mb_field_flag && (bottom || topright_mb_field_flag)){
- topright_xy -= s->mb_stride;
- }
- if (left_mb_field_flag != curr_mb_field_flag) {
- left_xy[1] = left_xy[0] = pair_xy - 1;
- if (curr_mb_field_flag) {
- left_xy[1] += s->mb_stride;
- left_block = left_block_options[3];
- } else {
- left_block= left_block_options[2 - bottom];
- }
- }
- }
-
- h->top_mb_xy = top_xy;
- h->left_mb_xy[0] = left_xy[0];
- h->left_mb_xy[1] = left_xy[1];
- if(for_deblock){
- topleft_type = 0;
- topright_type = 0;
- top_type = h->slice_table[top_xy ] < 0xFFFF ? s->current_picture.mb_type[top_xy] : 0;
- left_type[0] = h->slice_table[left_xy[0] ] < 0xFFFF ? s->current_picture.mb_type[left_xy[0]] : 0;
- left_type[1] = h->slice_table[left_xy[1] ] < 0xFFFF ? s->current_picture.mb_type[left_xy[1]] : 0;
-
- if(MB_MBAFF && !IS_INTRA(mb_type)){
- int list;
- for(list=0; list<h->list_count; list++){
- //These values where changed for ease of performing MC, we need to change them back
- //FIXME maybe we can make MC and loop filter use the same values or prevent
- //the MC code from changing ref_cache and rather use a temporary array.
- if(USES_LIST(mb_type,list)){
- int8_t *ref = &s->current_picture.ref_index[list][h->mb2b8_xy[mb_xy]];
- *(uint32_t*)&h->ref_cache[list][scan8[ 0]] =
- *(uint32_t*)&h->ref_cache[list][scan8[ 2]] = (pack16to32(ref[0],ref[1])&0x00FF00FF)*0x0101;
- ref += h->b8_stride;
- *(uint32_t*)&h->ref_cache[list][scan8[ 8]] =
- *(uint32_t*)&h->ref_cache[list][scan8[10]] = (pack16to32(ref[0],ref[1])&0x00FF00FF)*0x0101;
- }
- }
- }
- }else{
- topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
- top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
- topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
- left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
- left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
-
- if(IS_INTRA(mb_type)){
- int type_mask= h->pps.constrained_intra_pred ? IS_INTRA(-1) : -1;
- h->topleft_samples_available=
- h->top_samples_available=
- h->left_samples_available= 0xFFFF;
- h->topright_samples_available= 0xEEEA;
-
- if(!(top_type & type_mask)){
- h->topleft_samples_available= 0xB3FF;
- h->top_samples_available= 0x33FF;
- h->topright_samples_available= 0x26EA;
- }
- if(IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[0])){
- if(IS_INTERLACED(mb_type)){
- if(!(left_type[0] & type_mask)){
- h->topleft_samples_available&= 0xDFFF;
- h->left_samples_available&= 0x5FFF;
- }
- if(!(left_type[1] & type_mask)){
- h->topleft_samples_available&= 0xFF5F;
- h->left_samples_available&= 0xFF5F;
- }
- }else{
- int left_typei = h->slice_table[left_xy[0] + s->mb_stride ] == h->slice_num
- ? s->current_picture.mb_type[left_xy[0] + s->mb_stride] : 0;
- assert(left_xy[0] == left_xy[1]);
- if(!((left_typei & type_mask) && (left_type[0] & type_mask))){
- h->topleft_samples_available&= 0xDF5F;
- h->left_samples_available&= 0x5F5F;
- }
- }
- }else{
- if(!(left_type[0] & type_mask)){
- h->topleft_samples_available&= 0xDF5F;
- h->left_samples_available&= 0x5F5F;
- }
- }
-
- if(!(topleft_type & type_mask))
- h->topleft_samples_available&= 0x7FFF;
-
- if(!(topright_type & type_mask))
- h->topright_samples_available&= 0xFBFF;
-
- if(IS_INTRA4x4(mb_type)){
- if(IS_INTRA4x4(top_type)){
- h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4];
- h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5];
- h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6];
- h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];
- }else{
- int pred;
- if(!(top_type & type_mask))
- pred= -1;
- else{
- pred= 2;
- }
- h->intra4x4_pred_mode_cache[4+8*0]=
- h->intra4x4_pred_mode_cache[5+8*0]=
- h->intra4x4_pred_mode_cache[6+8*0]=
- h->intra4x4_pred_mode_cache[7+8*0]= pred;
- }
- for(i=0; i<2; i++){
- if(IS_INTRA4x4(left_type[i])){
- h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]];
- h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];
- }else{
- int pred;
- if(!(left_type[i] & type_mask))
- pred= -1;
- else{
- pred= 2;
- }
- h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
- h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;
- }
- }
- }
- }
- }
-
-
- /*
- 0 . T T. T T T T
- 1 L . .L . . . .
- 2 L . .L . . . .
- 3 . T TL . . . .
- 4 L . .L . . . .
- 5 L . .. . . . .
- */
- //FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)
- if(top_type){
- h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][4];
- h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][5];
- h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][6];
- h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3];
-
- h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][9];
- h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8];
-
- h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][12];
- h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11];
-
- }else{
- h->non_zero_count_cache[4+8*0]=
- h->non_zero_count_cache[5+8*0]=
- h->non_zero_count_cache[6+8*0]=
- h->non_zero_count_cache[7+8*0]=
-
- h->non_zero_count_cache[1+8*0]=
- h->non_zero_count_cache[2+8*0]=
-
- h->non_zero_count_cache[1+8*3]=
- h->non_zero_count_cache[2+8*3]= CABAC && !IS_INTRA(mb_type) ? 0 : 64;
-
- }
-
- for (i=0; i<2; i++) {
- if(left_type[i]){
- h->non_zero_count_cache[3+8*1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[0+2*i]];
- h->non_zero_count_cache[3+8*2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[1+2*i]];
- h->non_zero_count_cache[0+8*1 + 8*i]= h->non_zero_count[left_xy[i]][left_block[4+2*i]];
- h->non_zero_count_cache[0+8*4 + 8*i]= h->non_zero_count[left_xy[i]][left_block[5+2*i]];
- }else{
- h->non_zero_count_cache[3+8*1 + 2*8*i]=
- h->non_zero_count_cache[3+8*2 + 2*8*i]=
- h->non_zero_count_cache[0+8*1 + 8*i]=
- h->non_zero_count_cache[0+8*4 + 8*i]= CABAC && !IS_INTRA(mb_type) ? 0 : 64;
- }
- }
-
- if( CABAC ) {
- // top_cbp
- if(top_type) {
- h->top_cbp = h->cbp_table[top_xy];
- } else if(IS_INTRA(mb_type)) {
- h->top_cbp = 0x1C0;
- } else {
- h->top_cbp = 0;
- }
- // left_cbp
- if (left_type[0]) {
- h->left_cbp = h->cbp_table[left_xy[0]] & 0x1f0;
- } else if(IS_INTRA(mb_type)) {
- h->left_cbp = 0x1C0;
- } else {
- h->left_cbp = 0;
- }
- if (left_type[0]) {
- h->left_cbp |= ((h->cbp_table[left_xy[0]]>>((left_block[0]&(~1))+1))&0x1) << 1;
- }
- if (left_type[1]) {
- h->left_cbp |= ((h->cbp_table[left_xy[1]]>>((left_block[2]&(~1))+1))&0x1) << 3;
- }
- }
-
- #if 1
- if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
- int list;
- for(list=0; list<h->list_count; list++){
- if(!USES_LIST(mb_type, list) && !IS_DIRECT(mb_type) && !h->deblocking_filter){
- /*if(!h->mv_cache_clean[list]){
- memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?
- memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));
- h->mv_cache_clean[list]= 1;
- }*/
- continue;
- }
- h->mv_cache_clean[list]= 0;
-
- if(USES_LIST(top_type, list)){
- const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
- const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;
- *(uint32_t*)h->mv_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 0];
- *(uint32_t*)h->mv_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 1];
- *(uint32_t*)h->mv_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 2];
- *(uint32_t*)h->mv_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 3];
- h->ref_cache[list][scan8[0] + 0 - 1*8]=
- h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0];
- h->ref_cache[list][scan8[0] + 2 - 1*8]=
- h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1];
- }else{
- *(uint32_t*)h->mv_cache [list][scan8[0] + 0 - 1*8]=
- *(uint32_t*)h->mv_cache [list][scan8[0] + 1 - 1*8]=
- *(uint32_t*)h->mv_cache [list][scan8[0] + 2 - 1*8]=
- *(uint32_t*)h->mv_cache [list][scan8[0] + 3 - 1*8]= 0;
- *(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101;
- }
-
- for(i=0; i<2; i++){
- int cache_idx = scan8[0] - 1 + i*2*8;
- if(USES_LIST(left_type[i], list)){
- const int b_xy= h->mb2b_xy[left_xy[i]] + 3;
- const int b8_xy= h->mb2b8_xy[left_xy[i]] + 1;
- *(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]];
- *(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]];
- h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0+i*2]>>1)];
- h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[1+i*2]>>1)];
- }else{
- *(uint32_t*)h->mv_cache [list][cache_idx ]=
- *(uint32_t*)h->mv_cache [list][cache_idx+8]= 0;
- h->ref_cache[list][cache_idx ]=
- h->ref_cache[list][cache_idx+8]= left_type[i] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
- }
- }
-
- if(for_deblock || ((IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred) && !FRAME_MBAFF))
- continue;
-
- if(USES_LIST(topleft_type, list)){
- const int b_xy = h->mb2b_xy[topleft_xy] + 3 + h->b_stride + (topleft_partition & 2*h->b_stride);
- const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + (topleft_partition & h->b8_stride);
- *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
- h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];
- }else{
- *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0;
- h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
- }
-
- if(USES_LIST(topright_type, list)){
- const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;
- const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride;
- *(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
- h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy];
- }else{
- *(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0;
- h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
- }
-
- if((IS_SKIP(mb_type) || IS_DIRECT(mb_type)) && !FRAME_MBAFF)
- continue;
-
- h->ref_cache[list][scan8[5 ]+1] =
- h->ref_cache[list][scan8[7 ]+1] =
- h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewhere else)
- h->ref_cache[list][scan8[4 ]] =
- h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
- *(uint32_t*)h->mv_cache [list][scan8[5 ]+1]=
- *(uint32_t*)h->mv_cache [list][scan8[7 ]+1]=
- *(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
- *(uint32_t*)h->mv_cache [list][scan8[4 ]]=
- *(uint32_t*)h->mv_cache [list][scan8[12]]= 0;
-
- if( CABAC ) {
- /* XXX beurk, Load mvd */
- if(USES_LIST(top_type, list)){
- const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
- *(uint32_t*)h->mvd_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 0];
- *(uint32_t*)h->mvd_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 1];
- *(uint32_t*)h->mvd_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 2];
- *(uint32_t*)h->mvd_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 3];
- }else{
- *(uint32_t*)h->mvd_cache [list][scan8[0] + 0 - 1*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] + 1 - 1*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] + 2 - 1*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] + 3 - 1*8]= 0;
- }
- if(USES_LIST(left_type[0], list)){
- const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
- *(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]];
- *(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]];
- }else{
- *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 0*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 1*8]= 0;
- }
- if(USES_LIST(left_type[1], list)){
- const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
- *(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]];
- *(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]];
- }else{
- *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 2*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 3*8]= 0;
- }
- *(uint32_t*)h->mvd_cache [list][scan8[5 ]+1]=
- *(uint32_t*)h->mvd_cache [list][scan8[7 ]+1]=
- *(uint32_t*)h->mvd_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
- *(uint32_t*)h->mvd_cache [list][scan8[4 ]]=
- *(uint32_t*)h->mvd_cache [list][scan8[12]]= 0;
-
- if(h->slice_type_nos == FF_B_TYPE){
- fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, 0, 1);
-
- if(IS_DIRECT(top_type)){
- *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0x01010101;
- }else if(IS_8X8(top_type)){
- int b8_xy = h->mb2b8_xy[top_xy] + h->b8_stride;
- h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy];
- h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 1];
- }else{
- *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0;
- }
-
- if(IS_DIRECT(left_type[0]))
- h->direct_cache[scan8[0] - 1 + 0*8]= 1;
- else if(IS_8X8(left_type[0]))
- 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)];
- else
- h->direct_cache[scan8[0] - 1 + 0*8]= 0;
-
- if(IS_DIRECT(left_type[1]))
- h->direct_cache[scan8[0] - 1 + 2*8]= 1;
- else if(IS_8X8(left_type[1]))
- 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)];
- else
- h->direct_cache[scan8[0] - 1 + 2*8]= 0;
- }
- }
-
- if(FRAME_MBAFF){
- #define MAP_MVS\
- MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\
- MAP_F2F(scan8[0] + 0 - 1*8, top_type)\
- MAP_F2F(scan8[0] + 1 - 1*8, top_type)\
- MAP_F2F(scan8[0] + 2 - 1*8, top_type)\
- MAP_F2F(scan8[0] + 3 - 1*8, top_type)\
- MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\
- MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\
- MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\
- MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\
- MAP_F2F(scan8[0] - 1 + 3*8, left_type[1])
- if(MB_FIELD){
- #define MAP_F2F(idx, mb_type)\
- if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
- h->ref_cache[list][idx] <<= 1;\
- h->mv_cache[list][idx][1] /= 2;\
- h->mvd_cache[list][idx][1] /= 2;\
- }
- MAP_MVS
- #undef MAP_F2F
- }else{
- #define MAP_F2F(idx, mb_type)\
- if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
- h->ref_cache[list][idx] >>= 1;\
- h->mv_cache[list][idx][1] <<= 1;\
- h->mvd_cache[list][idx][1] <<= 1;\
- }
- MAP_MVS
- #undef MAP_F2F
- }
- }
- }
- }
- #endif
-
- h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]);
- }
-
- /**
- * gets the predicted intra4x4 prediction mode.
- */
- static inline int pred_intra_mode(H264Context *h, int n){
- const int index8= scan8[n];
- const int left= h->intra4x4_pred_mode_cache[index8 - 1];
- const int top = h->intra4x4_pred_mode_cache[index8 - 8];
- const int min= FFMIN(left, top);
-
- tprintf(h->s.avctx, "mode:%d %d min:%d\n", left ,top, min);
-
- if(min<0) return DC_PRED;
- else return min;
- }
-
- static inline void write_back_non_zero_count(H264Context *h){
- const int mb_xy= h->mb_xy;
-
- h->non_zero_count[mb_xy][0]= h->non_zero_count_cache[7+8*1];
- h->non_zero_count[mb_xy][1]= h->non_zero_count_cache[7+8*2];
- h->non_zero_count[mb_xy][2]= h->non_zero_count_cache[7+8*3];
- h->non_zero_count[mb_xy][3]= h->non_zero_count_cache[7+8*4];
- h->non_zero_count[mb_xy][4]= h->non_zero_count_cache[4+8*4];
- h->non_zero_count[mb_xy][5]= h->non_zero_count_cache[5+8*4];
- h->non_zero_count[mb_xy][6]= h->non_zero_count_cache[6+8*4];
-
- h->non_zero_count[mb_xy][9]= h->non_zero_count_cache[1+8*2];
- h->non_zero_count[mb_xy][8]= h->non_zero_count_cache[2+8*2];
- h->non_zero_count[mb_xy][7]= h->non_zero_count_cache[2+8*1];
-
- h->non_zero_count[mb_xy][12]=h->non_zero_count_cache[1+8*5];
- h->non_zero_count[mb_xy][11]=h->non_zero_count_cache[2+8*5];
- h->non_zero_count[mb_xy][10]=h->non_zero_count_cache[2+8*4];
- }
-
- static inline void write_back_motion(H264Context *h, int mb_type){
- MpegEncContext * const s = &h->s;
- const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
- const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride;
- int list;
-
- if(!USES_LIST(mb_type, 0))
- fill_rectangle(&s->current_picture.ref_index[0][b8_xy], 2, 2, h->b8_stride, (uint8_t)LIST_NOT_USED, 1);
-
- for(list=0; list<h->list_count; list++){
- int y;
- if(!USES_LIST(mb_type, list))
- continue;
-
- for(y=0; y<4; y++){
- *(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];
- *(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];
- }
- if( CABAC ) {
- if(IS_SKIP(mb_type))
- fill_rectangle(h->mvd_table[list][b_xy], 4, 4, h->b_stride, 0, 4);
- else
- for(y=0; y<4; y++){
- *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+0 + 8*y];
- *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+2 + 8*y];
- }
- }
-
- {
- int8_t *ref_index = &s->current_picture.ref_index[list][b8_xy];
- ref_index[0+0*h->b8_stride]= h->ref_cache[list][scan8[0]];
- ref_index[1+0*h->b8_stride]= h->ref_cache[list][scan8[4]];
- ref_index[0+1*h->b8_stride]= h->ref_cache[list][scan8[8]];
- ref_index[1+1*h->b8_stride]= h->ref_cache[list][scan8[12]];
- }
- }
-
- if(h->slice_type_nos == FF_B_TYPE && CABAC){
- if(IS_8X8(mb_type)){
- uint8_t *direct_table = &h->direct_table[b8_xy];
- direct_table[1+0*h->b8_stride] = IS_DIRECT(h->sub_mb_type[1]) ? 1 : 0;
- direct_table[0+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[2]) ? 1 : 0;
- direct_table[1+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[3]) ? 1 : 0;
- }
- }
- }
-
- static inline int get_dct8x8_allowed(H264Context *h){
- if(h->sps.direct_8x8_inference_flag)
- return !(*(uint64_t*)h->sub_mb_type & ((MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8 )*0x0001000100010001ULL));
- else
- return !(*(uint64_t*)h->sub_mb_type & ((MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8|MB_TYPE_DIRECT2)*0x0001000100010001ULL));
- }
-
- static void predict_field_decoding_flag(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int mb_xy= h->mb_xy;
- int mb_type = (h->slice_table[mb_xy-1] == h->slice_num)
- ? s->current_picture.mb_type[mb_xy-1]
- : (h->slice_table[mb_xy-s->mb_stride] == h->slice_num)
- ? s->current_picture.mb_type[mb_xy-s->mb_stride]
- : 0;
- h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
- }
-
- /**
- * decodes a P_SKIP or B_SKIP macroblock
- */
- static void decode_mb_skip(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int mb_xy= h->mb_xy;
- int mb_type=0;
-
- memset(h->non_zero_count[mb_xy], 0, 16);
- memset(h->non_zero_count_cache + 8, 0, 8*5); //FIXME ugly, remove pfui
-
- if(MB_FIELD)
- mb_type|= MB_TYPE_INTERLACED;
-
- if( h->slice_type_nos == FF_B_TYPE )
- {
- // just for fill_caches. pred_direct_motion will set the real mb_type
- mb_type|= MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2|MB_TYPE_SKIP;
-
- fill_caches(h, mb_type, 0); //FIXME check what is needed and what not ...
- ff_h264_pred_direct_motion(h, &mb_type);
- mb_type|= MB_TYPE_SKIP;
- }
- else
- {
- int mx, my;
- mb_type|= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_SKIP;
-
- fill_caches(h, mb_type, 0); //FIXME check what is needed and what not ...
- pred_pskip_motion(h, &mx, &my);
- fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
- fill_rectangle( h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx,my), 4);
- }
-
- write_back_motion(h, mb_type);
- s->current_picture.mb_type[mb_xy]= mb_type;
- s->current_picture.qscale_table[mb_xy]= s->qscale;
- h->slice_table[ mb_xy ]= h->slice_num;
- h->prev_mb_skipped= 1;
- }
-
- #include "h264_mvpred.h" //For pred_pskip_motion()
-
- #endif /* AVCODEC_H264_H */
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