global.h

H.264编码解码器源码(c语言).zip

  int layer;             //!< which layer this picture belonged to
  int old_layer;         //!< old layer number
  int NoResidueDirect;

  int redundant_pic_cnt; // JVT-D101

  int MbaffFrameFlag;    //!< indicates frame with mb aff coding

  int **field_anchor;

  //the following should probably go in sequence parameters
  // unsigned int log2_max_frame_num_minus4;
  unsigned int pic_order_cnt_type;
  // for poc mode 0, POC200301
  // unsigned int log2_max_pic_order_cnt_lsb_minus4;  
  // for poc mode 1, POC200301
  unsigned int delta_pic_order_always_zero_flag;
           int offset_for_non_ref_pic;
           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;

} ImageParameters;

                                //!< 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_use_mode_inter[2][MAXMODE]; //!< statistics of bit usage
  int   bit_ctr_emulationprevention; //!< stored bits needed to prevent start code emulation
  int   mode_use_intra[25];     //!< Macroblock mode usage for Intra frames
  int   mode_use_inter[2][MAXMODE];

  // 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;

#define NUM_PIC_TYPE 5
  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;
} StatParameters;

//!< For MB level field/frame coding tools
//!< temporary structure to store MB data for field/frame coding
typedef struct
{
  double min_rdcost;
  int tmp_mv[2][4][4];        // to hold the motion vectors for each block
  int tmp_fwMV[2][4][4];      // to hold forward motion vectors for B MB's
  int tmp_bwMV[2][4][4];      // to hold backward motion vectors for B MBs
  int dfMV[2][4][4], dbMV[2][4][4]; // to hold direct motion vectors for B MB's
  int    rec_mbY[16][16];       // hold the Y component of reconstructed MB
  int    rec_mbU[8][8], rec_mbV[8][8]; 
  int    ****cofAC;
  int    ***cofDC;
  int    mb_type;
  int    b8mode[4], b8pdir[4];
  int    frefar[4][4], brefar[4][4];
  int    **ipredmode;
  int    intra_pred_modes[16];
  int    cbp, cbp_blk;
  int    mode;
  int    *****mv, *****p_fwMV, *****p_bwMV ;
  int    *****all_mv;
  int    *****all_bmv;
  int    i16offset;
  int    c_ipred_mode;
} RD_DATA;

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 *stat;

extern SNRParameters *snr;

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


/***********************************************************************
 * 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);
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);
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 push_poc(unsigned int topvalue, unsigned int bottomvalue, unsigned int ref_frame_ind );

void init_img();
void report();
void information_init();
int  get_picture_type();
void DeblockFrame(ImageParameters *img, byte **, byte ***) ;


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

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

void LumaResidualCoding ();
void ChromaResidualCoding (int*);
void IntraChromaPrediction8x8 (int*, int*, int*);
void SetRefFrameInfo (int, int);
int  writeMBHeader   (int rdopt); 

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

void  Get_Direct_Motion_Vectors ();
void  PartitionMotionSearch     (int, int, double);
int   BIDPartitionCost          (int, int, int, int);
int   LumaResidualCoding8x8     (int*, int*, int, int, int, int, int);
int   writeLumaCoeff8x8         (int, int);
int   writeMotionVector8x8      (int, int, int, int, int, int, int, int);
int   writeReferenceFrame       (int, int, int, int, int);
int   ABIDPartitionCost         (int, int, int*, int*, int, int*);
int   BBIDPartitionCost         (int, int, int* , int* , int, int* , int);
int   writeAbpCoeffIndex        (int, int, int, int);
int   writeIntra4x4Modes        (int);
int   writeChromaIntraPredMode  ();

int Get_Direct_Cost8x8 (int, double);
int Get_Direct_CostMB  (double);
int B8Mode2Value (int b8mode, int b8pdir);
void writeCBP_BIT_CABAC (int b8, int bit, int cbp, Macroblock* currMB, int inter, EncodingEnvironmentPtr eep_dp);

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  (int******);
void free_mem_mv (int*****);
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);
int  get_mem4global_buffers_field();
void free_mem4global_buffers_field();
// void read_one_new_field();
void combine_field();

// Added for (re-) structuring the TML soft
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  encode_one_macroblock();
void  start_macroblock();
void  set_MB_parameters (int mb);           //! 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  proceed2nextSuperMacroblock();    //!< For MB level field/frame coding tools
void  back2topmb();             //!< For MB level field/frame coding tools
void proceed2lowermb();           //!< For MB level field/frame coding tools

void  LumaResidualCoding_P();
void  ChromaCoding_P(int *cr_cbp);
void  SetRefFrameInfo_P();
int   MakeIntraPrediction(int *intra_pred_mode_2);
void  CheckAvailabilityOfNeighbors();

void free_slice_list(Picture *currPic);

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


// CABAC
void arienco_start_encoding(EncodingEnvironmentPtr eep, unsigned char *code_buffer, int *code_len, /* int *last_startcode, */int slice_type);
int  arienco_bits_written(EncodingEnvironmentPtr eep);
void arienco_done_encoding(EncodingEnvironmentPtr eep);
void biari_init_context (BiContextTypePtr ctx, const int* ini);
void rescale_cum_freq(BiContextTypePtr bi_ct);
void biari_encode_symbol(EncodingEnvironmentPtr eep, signed short symbol, BiContextTypePtr bi_ct );
void biari_encode_symbol_eq_prob(EncodingEnvironmentPtr eep, signed short symbol);
void biari_encode_symbol_final(EncodingEnvironmentPtr eep, signed short symbol);
MotionInfoContexts* create_contexts_MotionInfo(void);
TextureInfoContexts* create_contexts_TextureInfo(void);
void init_contexts_MotionInfo (MotionInfoContexts  *enco_ctx);
void init_contexts_TextureInfo(TextureInfoContexts *enco_ctx);
void delete_contexts_MotionInfo(MotionInfoContexts *enco_ctx);
void delete_contexts_TextureInfo(TextureInfoContexts *enco_ctx);
void writeHeaderToBuffer();
int  writeSyntaxElement_CABAC(SyntaxElement *se, DataPartition *this_dataPart);
void writeMB_typeInfo_CABAC(SyntaxElement *se, EncodingEnvironmentPtr eep_dp);
void writeIntraPredMode_CABAC(SyntaxElement *se, EncodingEnvironmentPtr eep_dp);
void writeB8_typeInfo_CABAC(SyntaxElement *se, EncodingEnvironmentPtr eep_dp);
void writeRefFrame2Buffer_CABAC(SyntaxElement *se, EncodingEnvironmentPtr eep_dp);
void writeRefFrame_CABAC(SyntaxElement *se, EncodingEnvironmentPtr eep_dp);
void writeMVD_CABAC(SyntaxElement *se, EncodingEnvironmentPtr eep_dp);
void writeCBP_CABAC(SyntaxElement *se, EncodingEnvironmentPtr eep_dp);
void writeDquant_CABAC(SyntaxElement *se, EncodingEnvironmentPtr eep_dp);
void writeRunLevel_CABAC(SyntaxElement *se, EncodingEnvironmentPtr eep_dp);
void writeBiDirBlkSize_CABAC(SyntaxElement *se, EncodingEnvironmentPtr eep_dp);
void writeCIPredMode_CABAC(SyntaxElement *se, EncodingEnvironmentPtr eep_dp);
void print_ctx_TextureInfo(TextureInfoContexts *enco_ctx);
void writeMB_skip_flagInfo_CABAC(SyntaxElement *se, EncodingEnvironmentPtr eep_dp);
void writeFieldModeInfo_CABAC(SyntaxElement *se, EncodingEnvironmentPtr eep_dp); //GB


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

// B pictures
int  motion_search_Bframe(int tot_intra_sad);
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);
void LumaResidualCoding_B();
void ChromaCoding_B(int *cr_cbp);
void SetRefFrameInfo_B();
int  writeMotionInfo2NAL_Bframe();
int  BlkSize2CodeNumber(int blc_size_h, int blc_size_v);

void InitRefbuf ();
void InitMotionVectorSearchModule();
void InitRefbuf_fld ();
void copy2mref_fld();


void  SetRefFrameInfo (int, int);

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


int   writeLumaCoeff4x4_CABAC     (int, 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(byte **imY, int block_y, int block_x, int mvhor, int mvver, byte **out);
byte Get_Reference_Pixel(byte **imY, int y, int x);
int Half_Upsample(byte **imY, int j, int i);
void DecOneForthPix(byte **dY, byte ***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(byte **inY, byte **s_map, byte ***refY);
void Conceal_Error(byte **inY, int mb_y, int mb_x, byte ***refY, byte **s_map);
//============= restriction of reference frames based on the latest intra-refreshes==========
int CheckReliabilityOfRefFrame(int ref_frame, int);
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)
#define PAYLOAD_TYPE_IDERP 8

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

int poc_distance( int refa, int refb);

#endif

#include "context_ini.h"