global.h

G729、h263、h264、MPEG4四种最流行的音频和视频标准的压缩和解压算法的源代码.rar

           int offset_for_top_to_bottom_field;
  unsigned int num_ref_frames_in_pic_order_cnt_cycle;
           int offset_for_ref_frame[1];  // MAX_LENGTH_POC_CYCLE in decoder

  // POC200301
  //the following is for slice header syntax elements of poc
  // for poc mode 0.
  unsigned int pic_order_cnt_lsb;
           int delta_pic_order_cnt_bottom;
  // for poc mode 1.
           int delta_pic_order_cnt[2];


  // POC200301
  unsigned int field_picture;
    signed int toppoc;      //!< poc for this frame or field
    signed int bottompoc;   //!< for completeness - poc of bottom field of a frame (always = poc+1)
    signed int framepoc;    //!< min (toppoc, bottompoc)
    signed int ThisPOC;     //!< current picture POC
  unsigned int frame_num;   //!< frame_num for this frame
  
  unsigned PicWidthInMbs;
  unsigned PicHeightInMapUnits;
  unsigned FrameHeightInMbs;
  unsigned PicHeightInMbs;
  unsigned PicSizeInMbs;
  unsigned FrameSizeInMbs;

  //the following should probably go in picture parameters
  unsigned int pic_order_present_flag; // ????????

  //the following are sent in the slice header
//  int delta_pic_order_cnt[2];
  int nal_reference_idc;

  int adaptive_ref_pic_buffering_flag;
  int no_output_of_prior_pics_flag;
  int long_term_reference_flag;

  DecRefPicMarking_t *dec_ref_pic_marking_buffer;

  int model_number;


  /*rate control*/
  int NumberofHeaderBits; 
  int NumberofTextureBits;
  int NumberofBasicUnitHeaderBits;
  int NumberofBasicUnitTextureBits;
  double TotalMADBasicUnit;
  int NumberofMBTextureBits;
  int NumberofMBHeaderBits;
  int NumberofCodedBFrame; 
  int NumberofCodedPFrame;
  int NumberofGOP;
  int TotalQpforPPicture;
  int NumberofPPicture;
  double MADofMB[6336];
  int BasicUnitQP;
  int TopFieldFlag;
  int FieldControl;
  int FieldFrame;
  int Frame_Total_Number_MB;
  int IFLAG;
  int NumberofCodedMacroBlocks;
  int BasicUnit;
  int write_macroblock;
  int bot_MB;
  int write_macroblock_frame;

  int DeblockCall;
        
  int last_pic_bottom_field;
  int last_has_mmco_5;
  int pre_frame_num;

  int slice_group_change_cycle;

  int pic_unit_size_on_disk;
  int bitdepth_luma;
  int bitdepth_chroma;
  int bitdepth_luma_qp_scale;
  int bitdepth_chroma_qp_scale;
  int bitdepth_lambda_scale;
  unsigned int dc_pred_value;   //!< value for DC prediction (depends on pel bit depth)
  int max_imgpel_value;         //!< max value that one picture element (pixel) can take (depends on pic_unit_bitdepth)
  int max_imgpel_value_uv;

  int num_blk8x8_uv;
  int num_cdc_coeff;
  int yuv_format;
  int lossless_qpprime_flag;
  int mb_cr_size_x;
  int mb_cr_size_y;

  int chroma_qp_offset[2];      //!< offset for qp for chroma [0-Cb, 1-Cr] 

  // Residue Color Transform
  int residue_transform_flag;

  int auto_crop_right;
  int auto_crop_bottom;

} ImageParameters;

#define NUM_PIC_TYPE 5
                                //!< statistics
typedef struct
{
  int   quant0;                 //!< quant for the first frame
  int   quant1;                 //!< average quant for the remaining frames
  float bitr;                   //!< bit rate for current frame, used only for output til terminal
  float bitr0;                  //!< stored bit rate for the first frame
  float bitrate;                //!< average bit rate for the sequence except first frame
  int   bit_ctr;                //!< counter for bit usage
  int   bit_ctr_0;              //!< stored bit use for the first frame
  int   bit_ctr_n;              //!< bit usage for the current frame
  int   bit_slice;              //!< number of bits in current slice
  int   bit_ctr_emulationprevention; //!< stored bits needed to prevent start code emulation
  int   b8_mode_0_use[NUM_PIC_TYPE][2];
  int   mode_use_transform_8x8[2][MAXMODE];
  int   mode_use_transform_4x4[2][MAXMODE];
  int   intra_chroma_mode[4];
  
  // B pictures
  int   *mode_use_Bframe;
  int   *bit_use_mode_Bframe;
  int   bit_ctr_P;
  int   bit_ctr_B;
  float bitrate_P;
  float bitrate_B;

  int   mode_use            [NUM_PIC_TYPE][MAXMODE]; //!< Macroblock mode usage for Intra frames
  int   bit_use_mode        [NUM_PIC_TYPE][MAXMODE]; //!< statistics of bit usage
  int   bit_use_stuffingBits[NUM_PIC_TYPE];
  int   bit_use_mb_type     [NUM_PIC_TYPE];
  int   bit_use_header      [NUM_PIC_TYPE];
  int   tmp_bit_use_cbp     [NUM_PIC_TYPE];
  int   bit_use_coeffY      [NUM_PIC_TYPE];
  int   bit_use_coeffC      [NUM_PIC_TYPE];
  int   bit_use_delta_quant [NUM_PIC_TYPE];

  int   em_prev_bits_frm;
  int   em_prev_bits_fld;
  int  *em_prev_bits;
  int   bit_ctr_parametersets;
  int   bit_ctr_parametersets_n;
} StatParameters;

//!< For MB level field/frame coding tools
//!< temporary structure to store MB data for field/frame coding
typedef struct
{
  double min_rdcost;

  int    rec_mbY[16][16];       // hold the Y component of reconstructed MB
  int    rec_mbU[16][16], rec_mbV[16][16]; 
  int    ****cofAC;
  int    ***cofDC;
  int    mb_type;
  int    b8mode[4], b8pdir[4];
  int    **ipredmode;
  int    intra_pred_modes[16];
  int    cbp;
  int64  cbp_blk;
  int    mode;
  short  ******pred_mv;        //!< predicted motion vectors
  short  ******all_mv;         //!< all modes motion vectors
  short  refar[2][4][4];       //!< reference frame array [list][x][y]
  int    i16offset;
  int    c_ipred_mode;

  int    luma_transform_size_8x8_flag;
  int    NoMbPartLessThan8x8Flag;
  
  int    qp;
  int    prev_qp;
  int    prev_delta_qp;
} RD_DATA;


//!< Set Explicit GOP Parameters.
//!< Currently only supports Enhancement GOP but could be easily extended
typedef struct
{
  int slice_type;       //! Slice type
  int display_no;       //! GOP Display order
  int reference_idc;    //! Is reference?
  int slice_qp;         //! Assigned QP
  int pyramid_layer;    //! Pyramid layer (used with GOP Pyramid option 2
  int pyramidPocDelta;  //! Currently unused
} GOP_DATA;


GOP_DATA *gop_structure;
RD_DATA *rdopt; 
RD_DATA rddata_top_frame_mb, rddata_bot_frame_mb; //!< For MB level field/frame coding tools
RD_DATA rddata_top_field_mb, rddata_bot_field_mb; //!< For MB level field/frame coding tools

extern InputParameters *input;
extern ImageParameters *img;
extern StatParameters  *stats;

extern SNRParameters *snr;

// files
FILE *p_stat;                    //!< status file for the last encoding session
FILE *p_log;                     //!< SNR file
FILE *p_trace;                   //!< Trace file
int  p_in;                       //!< original YUV file handle
int  p_dec;                      //!< decoded image file handle



int glob_remapping_of_pic_nums_idc_l0[20];
int glob_abs_diff_pic_num_minus1_l0[20];
int glob_long_term_pic_idx_l0[20];
int glob_remapping_of_pic_nums_idc_l1[20];
int glob_abs_diff_pic_num_minus1_l1[20];
int glob_long_term_pic_idx_l1[20]; 


/***********************************************************************
 * P r o t o t y p e s   f o r    T M L
 ***********************************************************************
 */

void intrapred_luma(int CurrPixX,int CurrPixY, int *left_available, int *up_available, int *all_available);
void init();
int  find_sad(int hadamard, int m7[16][16]);
int  dct_luma(int pos_mb1,int pos_mb2,int *cnt_nonz, int intra);
int  dct_luma_sp(int pos_mb1,int pos_mb2,int *cnt_nonz);
void copyblock_sp(int pos_mb1,int pos_mb2);
int  dct_chroma(int uv,int i11);
int  dct_chroma_sp(int uv,int i11);
// Residue Color Transform
int  dct_chroma4x4(int uv, int b8, int b4);
int  dct_chroma_DC(int uv, int cr_cbp);

int  motion_search(int isi);
int  sign(int a,int b);
void intrapred_chroma(int,int,int uv);
void intrapred_luma_16x16();
int  find_sad_16x16(int *intra_mode);

int dct_luma_16x16(int);

void init_poc();

void init_img();
void report();
void information_init();
int  get_picture_type();
int clip1a(int a);
void DeblockFrame(ImageParameters *img, imgpel **, imgpel ***) ;
void MarkAllMacroblockModes(ImageParameters *img, imgpel **, imgpel ***);

int  TransformDecision(int, int*);
int  SATD8X8(int*, int);

void LumaPrediction4x4 (int, int, int, int, int, short, short);
int  SATD (int*, int);

pel_t* FastLineX (int, pel_t*, int, int, int, int);
pel_t* UMVLineX  (int, pel_t*, int, int, int, int);

void LumaResidualCoding ();
void ChromaResidualCoding (int*);
void IntraChromaPrediction (int*, int*, int*);
void ChromaPrediction4x4 (int, int, int, int, int, int, short, short);
// Modified for Fast Mode Decision. Inchoon Choi, SungKyunKwan Univ.
int writeMBLayer (int rdopt, int *coeff_rate); 

extern int*   refbits;
extern int**** motion_cost;

void  Get_Direct_Motion_Vectors ();
void  PartitionMotionSearch     (int, int, double);
int   BIDPartitionCost          (int, int, short, short, int);
int   LumaResidualCoding8x8     (int*, int64*, int, short, int, int, short, short);
int   writeLumaCoeff8x8         (int, int, int);
int   writeMotionVector8x8      (int  i0, int  j0, int  i1, int  j1, int  refframe, int  list_idx, int  mv_mode);
int   writeReferenceFrame       (int, int, int, int, int);
int   writeAbpCoeffIndex        (int, int, int, int);
int   writeIntra4x4Modes        (int);
int   writeChromaIntraPredMode  ();

void estimate_weighting_factor_B_slice();
void estimate_weighting_factor_P_slice(int offset);
void poc_based_ref_management(int current_pic_num);
int  picture_coding_decision (Picture *picture1, Picture *picture2, int qp);

int  Get_Direct_Cost8x8 (int, int*);
int  Get_Direct_CostMB  (double);
int  B8Mode2Value (int b8mode, int b8pdir);

int  GetSkipCostMB (double lambda);
void FindSkipModeMotionVector ();


// dynamic mem allocation
int  init_global_buffers();
void free_global_buffers();
void no_mem_exit  (char *where);

int  get_mem_mv  (short*******);
void free_mem_mv (short******);
void free_img    ();

int  get_mem_ACcoeff  (int*****);
int  get_mem_DCcoeff  (int****);
void free_mem_ACcoeff (int****);
void free_mem_DCcoeff (int***);

int  decide_fld_frame(float snr_frame_Y, float snr_field_Y, int bit_field, int bit_frame, double lambda_picture);
void combine_field();

Picture *malloc_picture();
void     free_picture (Picture *pic);

int   encode_one_slice(int SLiceGroupId, Picture *pic);   //! returns the number of MBs in the slice

void  start_macroblock(int mb_addr, int mb_field);
void  set_MB_parameters (int mb_addr);           //! sets up img-> according to input-> and currSlice->

int   writeMotionInfo2NAL ();

void  terminate_macroblock(Boolean *end_of_slice, Boolean *recode_macroblock);
int   slice_too_big(int rlc_bits);
void  write_one_macroblock(int eos_bit);
void  proceed2nextMacroblock();

void free_slice_list(Picture *currPic);

void report_stats_on_error();

#if TRACE
void  trace2out(SyntaxElement *se);
#endif


void error(char *text, int code);
int  start_sequence();
int  terminate_sequence();
int  start_slice();
int  terminate_slice();
int  write_PPS(int, int);

// B pictures
int  get_fwMV(int *min_fw_sad, int tot_intra_sad);
void get_bwMV(int *min_bw_sad);
void get_bid(int *bid_sad, int fw_predframe_no);
void get_dir(int *dir_sad);
void compare_sad(int tot_intra_sad, int fw_sad, int bw_sad, int bid_sad, int dir_sad, int);
int  BlkSize2CodeNumber(int blc_size_h, int blc_size_v);

void InitMotionVectorSearchModule();

int  field_flag_inference();

void set_mbaff_parameters();  // For MB AFF
void writeVlcByteAlign(Bitstream* currStream);


int   writeLumaCoeff4x4_CABAC     (int, int, int);
int   writeLumaCoeff8x8_CABAC     (int, int);
int   writeCBPandLumaCoeff        ();
int   writeChromaCoeff            ();
int   writeMB_bits_for_4x4_luma   (int, int, int);
int   writeMB_bits_for_16x16_luma ();
int   writeMB_bits_for_luma       (int);
int   writeMB_bits_for_DC_chroma  (int);
int   writeMB_bits_for_AC_chroma  (int);
int   writeMB_bits_for_CBP        ();

int   SingleUnifiedMotionSearch   (int, int, int**, int***, int*****, int, int*****, double);

//============= rate-distortion optimization ===================
void  clear_rdopt      ();
void  init_rdopt       ();
void  RD_Mode_Decision ();
//============= rate-distortion opt with packet losses ===========
void decode_one_macroblock();
void decode_one_mb (int, Macroblock*);
void decode_one_b8block (int, int, int, int, int);
void Get_Reference_Block(imgpel **imY, int block_y, int block_x, int mvhor, int mvver, imgpel **out);
byte Get_Reference_Pixel(imgpel **imY, int y, int x);
int  Half_Upsample(imgpel **imY, int j, int i);
void DecOneForthPix(imgpel **dY, imgpel ***dref);
void compute_residue(int mode);
void compute_residue_b8block (int, int);
void compute_residue_mb (int);
void UpdateDecoders();
void Build_Status_Map(byte **s_map);
void Error_Concealment(imgpel **inY, byte **s_map, imgpel ***refY);
void Conceal_Error(imgpel **inY, int mb_y, int mb_x, imgpel ***refY, byte **s_map);
//============= restriction of reference frames based on the latest intra-refreshes==========
void UpdatePixelMap();

//============= fast full integer search =======================
#ifdef _FAST_FULL_ME_
void  ClearFastFullIntegerSearch    ();
void  ResetFastFullIntegerSearch    ();
#endif

void process_2nd_IGOP();
void SetImgType();

// Tian Dong: for IGOPs
extern Boolean In2ndIGOP;
extern int start_frame_no_in_this_IGOP;
extern int start_tr_in_this_IGOP;
extern int FirstFrameIn2ndIGOP;
#define IMG_NUMBER (img->number-start_frame_no_in_this_IGOP)

void AllocNalPayloadBuffer();
void FreeNalPayloadBuffer();
void SODBtoRBSP(Bitstream *currStream);
int RBSPtoEBSP(byte *streamBuffer, int begin_bytepos, int end_bytepos, int min_num_bytes);
int Bytes_After_Header;

// JVT-D101: the bit for redundant_pic_cnt in slice header may be changed, 
// therefore the bit position in the bitstream must be stored.
int rpc_bytes_to_go;
int rpc_bits_to_go;
void modify_redundant_pic_cnt(unsigned char *streamBuffer);
// End JVT-D101

// Fast ME enable
int BlockMotionSearch (short,int,int,int,int,int,double);
void encode_one_macroblock (void);

int RDCost_for_4x4Blocks_Chroma (int b8, int b4, int  chroma);

#endif

#include "context_ini.h"

void store_coding_state_cs_cm();
void reset_coding_state_cs_cm();