JM8.6代码文件结构

总结一下, JM8.6中比较重要的源代码文件

[block.c]用于处理一个块

void	intrapred_luma (int img_x, int img_y, int left_available, int up_available, int *all_available)
void	intrapred_luma_16x16 ()
int	dct_luma_16x16 (int new_intra_mode)
int	dct_luma (int block_x, int block_y, int *coeff_cost, int old_intra_mode)
int	dct_chroma (int uv, int cr_cbp)

[decoder.c] "decoders in the encoder

void	decode_one_b8block (int decoder, int mbmode, int b8block, int b8mode, int b8ref)
void	decode_one_mb (int decoder, Macroblock *currMB)
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_pos, int x_pos)
void	UpdateDecoders ()
void	DecOneForthPix (byte dY, byte *dref)
void	compute_residue_b8block (int b8block, int i16mode)
void	compute_residue_mb (int i16mode)
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)
[image.c] Code one image/slice
void		code_a_picture (Picture *pic)
void		frame_picture (Picture *frame)
static int		writeout_picture (Picture *pic)
static int		picture_structure_decision (Picture frame, Picture* top, Picture* *bot)
static void		distortion_fld (float dis_fld_y, float dis_fld_u, float *dis_fld_v)
static void		find_snr ()
static void		find_distortion ()
static void		frame_mode_buffer (int bit_frame, float snr_frame_y, float snr_frame_u, float snr_frame_v)
static void		init_frame ()
static void		put_buffer_frame ()
static void		copy_motion_vectors_MB ()
static void		CopyFrameToOldImgOrgVariables (Sourceframe *sf)
static Sourceframe *		AllocSourceframe (int xs, int ys)
static void		FreeSourceframe (Sourceframe *sf)
static void		ReadOneFrame (int FrameNoInFile, int HeaderSize, int xs, int ys, Sourceframe *sf)
static void		writeUnit (Bitstream *currStream, int partition)
static int		CalculateFrameNumber ()
int		encode_one_frame ()
static void		init_dec_ref_pic_marking_buffer ()
static void		GenerateFullPelRepresentation (pel_t *Fourthpel, pel_t Fullpel, int xsize, int ysize)
void		UnifiedOneForthPix (StorablePicture *s)
Boolean		dummy_slice_too_big (int bits_slice)
void		copy_rdopt_data (int bot_block)
static void		GenerateFieldComponent (char src, char top, char *bot, int xs, int ys)

[lencod.c]主函数所在文件

void	Init_Motion_Search_Module ()
void	Clear_Motion_Search_Module ()
int	main (int argc, char **argv)
void	report_stats_on_error ()
void	init_poc ()
void	CAVLC_init ()
void	init_img ()
void	free_img ()
Picture *	malloc_picture ()
void	free_picture (Picture *pic)
int	init_global_buffers ()
void	free_global_buffers ()
int	get_mem_mv (int *******mv)
int	get_mem_ACcoeff (int *****cofAC)
void	combine_field ()
void	process_2nd_IGOP ()
void	SetImgType ()

[macroblock.c] Process one macroblock

void	set_MB_parameters (int mb_addr)
void	proceed2nextMacroblock ()
void	start_macroblock (int mb_addr, int mb_field)
void	terminate_macroblock (Boolean end_of_slice, Boolean* *recode_macroblock)
int	slice_too_big (int rlc_bits)
void	OneComponentLumaPrediction4x4 (int mpred, int pic_pix_x, int pic_pix_y, int mv, int ref, StorablePicture **list)
void	copyblock4x4 (int *mpred, int block[BLOCK_SIZE][BLOCK_SIZE])
void	LumaPrediction4x4 (int block_x, int block_y, int p_dir, int fw_mode, int bw_mode, int fw_ref_idx, int bw_ref_idx)
int	LumaResidualCoding8x8 (int *cbp, int *cbp_blk, int block8x8, int p_dir, int fw_mode, int bw_mode, int fw_refframe, int bw_refframe)
void	SetModesAndRefframe (int b8, int p_dir, int fw_mode, int bw_mode, int fw_ref, int *bw_ref)
void	LumaResidualCoding ()
void	OneComponentChromaPrediction4x4 (int mpred, int block_c_x, int block_c_y, int *****mv, int list_idx, int ref, int blocktype, int uv)
void	IntraChromaPrediction4x4 (int uv, int block_x, int block_y)
void	ChromaPrediction4x4 (int uv, int block_x, int block_y, int p_dir, int fw_mode, int bw_mode, int fw_ref_idx, int bw_ref_idx)
void	ChromaResidualCoding (int *cr_cbp)
void	IntraChromaPrediction8x8 (int mb_up, int mb_left, int *mb_up_left)
int	ZeroRef (Macroblock *currMB)
int	MBType2Value (Macroblock *currMB)
int	writeIntra4x4Modes (int only_this_block)
int	B8Mode2Value (int b8mode, int b8pdir)
int	writeMBHeader (int rdopt)
void	write_terminating_bit (short bit)
int	writeChromaIntraPredMode ()
void	set_last_dquant ()
void	write_one_macroblock (int eos_bit)
int	BType2CtxRef (int btype)
int	writeReferenceFrame (int mode, int i, int j, int fwd_flag, int ref)
int	writeMotionVector8x8 (int i0, int j0, int i1, int j1, int refframe, int list_idx, int mv_mode)
int	writeMotionInfo2NAL ()
int	writeChromaCoeff ()
int	writeLumaCoeff4x4_CABAC (int b8, int b4, int intra4x4mode)
int	writeLumaCoeff8x8 (int block8x8, int intra4x4mode)
int	writeCBPandLumaCoeff ()
int	predict_nnz (int i, int j)
int	predict_nnz_chroma (int i, int j)
int	writeCoeff4x4_CAVLC (int block_type, int b8, int b4, int param)
int	find_sad_16x16 (int *intra_mode)

[mb_access.c]

int		mb_is_available (int mbAddr, int currMbAddr)
void		CheckAvailabilityOfNeighbors ()
void		get_mb_block_pos (int mb_addr, int x, int y)
void		get_mb_pos (int mb_addr, int x, int y)
void		getNonAffNeighbour (unsigned int curr_mb_nr, int xN, int yN, int luma, PixelPos *pix)
void		getAffNeighbour (unsigned int curr_mb_nr, int xN, int yN, int luma, PixelPos *pix)
void		getNeighbour (int curr_mb_nr, int xN, int yN, int luma, PixelPos *pix)
void		getLuma4x4Neighbour (int curr_mb_nr, int block_x, int block_y, int rel_x, int rel_y, PixelPos *pix)
void		getChroma4x4Neighbour (int curr_mb_nr, int block_x, int block_y, int rel_x, int rel_y, PixelPos *pix)
[mv-search.c]
void	SetMotionVectorPredictor (int pmv[2], int *refPic, int **tmp_mv, int ref_frame, int list, int block_x, int block_y, int blockshape_x, int blockshape_y)
void	InitializeFastFullIntegerSearch ()
void	ClearFastFullIntegerSearch ()
void	ResetFastFullIntegerSearch ()
void	SetupLargerBlocks (int list, int refindex, int max_pos)
void	SetupFastFullPelSearch (int ref, int list)
void	Init_Motion_Search_Module ()
void	Clear_Motion_Search_Module ()
int	FullPelBlockMotionSearch (pel_t *orig_pic, int ref, int list, int pic_pix_x, int pic_pix_y, int blocktype, int pred_mv_x, int pred_mv_y, int mv_x, int *mv_y, int search_range, int min_mcost, double lambda)
int	FastFullPelBlockMotionSearch (pel_t *orig_pic, int ref, int list, int pic_pix_x, int pic_pix_y, int blocktype, int pred_mv_x, int pred_mv_y, int mv_x, int *mv_y, int search_range, int min_mcost, double lambda)
int	SATD (int *diff, int use_hadamard)
int	SubPelBlockMotionSearch (pel_t *orig_pic, int ref, int list, int pic_pix_x, int pic_pix_y, int blocktype, int pred_mv_x, int pred_mv_y, int mv_x, int *mv_y, int search_pos2, int search_pos4, int min_mcost, double lambda)
int	BlockMotionSearch (int ref, int list, int mb_x, int mb_y, int blocktype, int search_range, double lambda)
int	BIDPartitionCost (int blocktype, int block8x8, int fw_ref, int bw_ref, int lambda_factor)
int	GetSkipCostMB (double lambda)
void	FindSkipModeMotionVector ()
int	Get_Direct_Cost8x8 (int block, double lambda)
int	Get_Direct_CostMB (double lambda)
void	PartitionMotionSearch (int blocktype, int block8x8, double lambda)
void	Get_Direct_Motion_Vectors ()

[rdopt.c]

void	clear_rdopt ()
void	init_rdopt ()
void	UpdatePixelMap ()
int	CheckReliabilityOfRef (int block, int list_idx, int ref, int mode)
double	RDCost_for_4x4IntraBlocks (int *nonzero, int b8, int b4, int ipmode, double lambda, double min_rdcost, int mostProbableMode)
int	Mode_Decision_for_4x4IntraBlocks (int b8, int b4, double lambda, int *min_cost)
int	Mode_Decision_for_8x8IntraBlocks (int b8, double lambda, int *cost)
int	Mode_Decision_for_Intra4x4Macroblock (double lambda, int *cost)
double	RDCost_for_8x8blocks (int cnt_nonz, int cbp_blk, double lambda, int block, int mode, int pdir, int ref, int bwd_ref)
int	I16Offset (int cbp, int i16mode)
void	SetModesAndRefframeForBlocks (int mode)
void	Intra16x16_Mode_Decision (Macroblock currMB, int i16mode)
void	SetCoeffAndReconstruction8x8 (Macroblock *currMB)
void	SetMotionVectorsMB (Macroblock *currMB, int bframe)
int	RDCost_for_macroblocks (double lambda, int mode, double *min_rdcost)
void	store_macroblock_parameters (int mode)
void	set_stored_macroblock_parameters ()
void	SetRefAndMotionVectors (int block, int mode, int pdir, int fwref, int bwref)
int	field_flag_inference ()
void	encode_one_macroblock ()

[rdopt_coding_state.c]

void	delete_coding_state (CSptr cs)
CSptr	create_coding_state ()
void	store_coding_state (CSptr cs)
void	reset_coding_state (CSptr cs)

[vlc.c]

int	ue_v (char tracestring, int value, DataPartition* *part)
int	se_v (char tracestring, int value, DataPartition* *part)
int	u_1 (char tracestring, int value, DataPartition* *part)
int	u_v (int n, char tracestring, int value, DataPartition* *part)
void	ue_linfo (int ue, int dummy, int len, int info)
void	se_linfo (int se, int dummy, int len, int info)
void	cbp_linfo_intra (int cbp, int dummy, int len, int info)
void	cbp_linfo_inter (int cbp, int dummy, int len, int info)
void	levrun_linfo_c2x2 (int level, int run, int len, int info)
void	levrun_linfo_inter (int level, int run, int len, int info)
void	levrun_linfo_intra (int level, int run, int len, int info)
int	symbol2uvlc (SyntaxElement *sym)
int	writeSyntaxElement_UVLC (SyntaxElement se, DataPartition* *this_dataPart)
int	writeSyntaxElement_fixed (SyntaxElement se, DataPartition* *this_dataPart)
int	writeSyntaxElement_Intra4x4PredictionMode (SyntaxElement se, DataPartition* *this_dataPart)
int	writeSyntaxElement2Buf_UVLC (SyntaxElement se, Bitstream* *this_streamBuffer)
void	writeUVLC2buffer (SyntaxElement se, Bitstream* *currStream)
int	writeSyntaxElement2Buf_Fixed (SyntaxElement se, Bitstream* *this_streamBuffer)
int	symbol2vlc (SyntaxElement *sym)
int	writeSyntaxElement_VLC (SyntaxElement se, DataPartition* *this_dataPart)
int	writeSyntaxElement_NumCoeffTrailingOnes (SyntaxElement se, DataPartition* *this_dataPart)
int	writeSyntaxElement_NumCoeffTrailingOnesChromaDC (SyntaxElement se, DataPartition* *this_dataPart)
int	writeSyntaxElement_TotalZeros (SyntaxElement se, DataPartition* *this_dataPart)
int	writeSyntaxElement_TotalZerosChromaDC (SyntaxElement se, DataPartition* *this_dataPart)
int	writeSyntaxElement_Run (SyntaxElement se, DataPartition* *this_dataPart)
int	writeSyntaxElement_Level_VLC1 (SyntaxElement se, DataPartition* *this_dataPart)
int	writeSyntaxElement_Level_VLCN (SyntaxElement se, int vlc, DataPartition* *this_dataPart)
void	writeVlcByteAlign (Bitstream *currStream)

[cabac.c]

void	unary_bin_encode (EncodingEnvironmentPtr eep_dp, unsigned int symbol, BiContextTypePtr ctx, int ctx_offset)
void	unary_bin_max_encode (EncodingEnvironmentPtr eep_dp, unsigned int symbol, BiContextTypePtr ctx, int ctx_offset, unsigned int max_symbol)
void	unary_exp_golomb_level_encode (EncodingEnvironmentPtr eep_dp, unsigned int symbol, BiContextTypePtr ctx)
void	unary_exp_golomb_mv_encode (EncodingEnvironmentPtr eep_dp, unsigned int symbol, BiContextTypePtr ctx, unsigned int max_bin)
void	cabac_new_slice ()
void	CheckAvailabilityOfNeighborsCABAC ()
MotionInfoContexts *	create_contexts_MotionInfo (void)
TextureInfoContexts *	create_contexts_TextureInfo (void)
void	delete_contexts_MotionInfo (MotionInfoContexts *enco_ctx)
void	delete_contexts_TextureInfo (TextureInfoContexts *enco_ctx)
int	writeSyntaxElement_CABAC (SyntaxElement se, DataPartition* *this_dataPart)
void	writeFieldModeInfo_CABAC (SyntaxElement se, EncodingEnvironmentPtr* eep_dp)
void	writeMB_skip_flagInfo_CABAC (SyntaxElement se, EncodingEnvironmentPtr* eep_dp)
void	writeMB_typeInfo_CABAC (SyntaxElement se, EncodingEnvironmentPtr* eep_dp)
void	writeB8_typeInfo_CABAC (SyntaxElement se, EncodingEnvironmentPtr* eep_dp)
void	writeIntraPredMode_CABAC (SyntaxElement se, EncodingEnvironmentPtr* eep_dp)
void	writeRefFrame_CABAC (SyntaxElement se, EncodingEnvironmentPtr* eep_dp)
void	writeDquant_CABAC (SyntaxElement se, EncodingEnvironmentPtr* eep_dp)
void	writeMVD_CABAC (SyntaxElement se, EncodingEnvironmentPtr* eep_dp)
void	writeCIPredMode_CABAC (SyntaxElement se, EncodingEnvironmentPtr* eep_dp)
void	writeCBP_BIT_CABAC (int b8, int bit, int cbp, Macroblock currMB, int inter, EncodingEnvironmentPtr* eep_dp)
void	writeCBP_CABAC (SyntaxElement se, EncodingEnvironmentPtr* eep_dp)
void	write_and_store_CBP_block_bit (Macroblock currMB, EncodingEnvironmentPtr* eep_dp, int type, int cbp_bit)
void	write_significance_map (Macroblock currMB, EncodingEnvironmentPtr* eep_dp, int type, int coeff[], int coeff_ctr)
void	write_significant_coefficients (Macroblock currMB, EncodingEnvironmentPtr* eep_dp, int type, int coeff[])
void	writeRunLevel_CABAC (SyntaxElement se, EncodingEnvironmentPtr* eep_dp)
void	exp_golomb_encode_eq_prob (EncodingEnvironmentPtr eep_dp, unsigned int symbol, int k)