transform8x8.h File Reference

prototypes of 8x8 transform functions More...

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Functions
int	Mode_Decision_for_Intra8x8Macroblock (Slice *currSlice, Macroblock *currMB, double lambda, double *min_cost)
int	Mode_Decision_for_8x8IntraBlocks_JM_Low (Slice *currSlice, Macroblock *currMB, int b8, double lambda, double *min_cost, int cr_cbp[3])
int	Mode_Decision_for_8x8IntraBlocks_JM_High (Slice *currSlice, Macroblock *currMB, int b8, double lambda, double *min_cost, int cr_cbp[3])
double	RDCost_for_8x8IntraBlocks (Slice *currSlice, Macroblock *currMB, int *c_nz, int b8, int ipmode, double lambda, double min_rdcost, int mostProbableMode, int c_nzCbCr[3])
void	compute_comp_cost8x8 (imgpel **cur_img, imgpel **mpr8x8, int pic_opix_x, double *cost)
void	intrapred_8x8 (Macroblock *currMB, ColorPlane pl, int img_x, int img_y, int *left_available, int *up_available, int *all_available)
void	LowPassForIntra8x8Pred (imgpel *PredPel, int block_up_left, int block_up, int block_left)
Variables
int(*	Mode_Decision_for_8x8IntraBlocks )(Slice *currSlice, Macroblock *currMB, int b8, double lambda, double *min_cost, int cr_cbp[3])

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Detailed Description

prototypes of 8x8 transform functions

Date:

9. October 2003

Author:

Main contributors (see contributors.h for copyright, address and affiliation details) Yuri Vatis

Definition in file transform8x8.h.

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Function Documentation

void compute_comp_cost8x8	(	imgpel **	cur_img,
		imgpel **	mpr8x8,
		int	pic_opix_x,
		double *	cost
	)

distortion for an 8x8 Intra block

Definition at line 1781 of file transform8x8.c.

References distortion8x8().

Referenced by Mode_Decision_for_8x8IntraBlocks_JM_Low().

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void intrapred_8x8	(	Macroblock *	currMB,
		ColorPlane	pl,
		int	img_x,
		int	img_y,
		int *	left_available,
		int *	up_available,
		int *	all_available
	)

Make intra 8x8 prediction according to all 9 prediction modes. The routine uses left and upper neighbouring points from previous coded blocks to do this (if available). Notice that inaccessible neighbouring points are signalled with a negative value in the predmode array .

Input:

Starting point of current 8x8 block image posision

Output:

none

Definition at line 1117 of file transform8x8.c.

References pix_pos::available, ImageParameters::dc_pred_value, ImageParameters::intra_block, LowPassForIntra8x8Pred(), pix_pos::mb_addr, ImageParameters::mb_size, ImageParameters::mpr_8x8, storable_picture::p_curr_img, pix_pos::pos_x, pix_pos::pos_y, and InputParameters::UseConstrainedIntraPred.

Referenced by Mode_Decision_for_8x8IntraBlocks_JM_High(), and Mode_Decision_for_8x8IntraBlocks_JM_Low().

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void LowPassForIntra8x8Pred	(	imgpel *	PredPel,
		int	block_up_left,
		int	block_up,
		int	block_left
	)

Prefiltering for Intra8x8 prediction.

Definition at line 1351 of file transform8x8.c.

Referenced by intrapred_8x8().

int Mode_Decision_for_8x8IntraBlocks_JM_High	(	Slice *	currSlice,
		Macroblock *	currMB,
		int	b8,
		double	lambda,
		double *	min_cost,
		int	cr_cbp[3]
	)

8x8 Intra mode decision for a macroblock - High complexity

Definition at line 448 of file transform8x8.c.

References ImageParameters::AdaptiveRounding, ImageParameters::ARCofAdj8x8, pix_pos::available, ImageParameters::cofAC, copy_8x8block(), get4x4Neighbour(), storable_picture::imgUV, storable_picture::imgY, ImageParameters::intra_block, macroblock::intra_pred_modes8x8, intrapred_8x8(), ImageParameters::ipredmode, ImageParameters::ipredmode8x8, pix_pos::mb_addr, ImageParameters::mb_ores, ImageParameters::mb_pred, ImageParameters::mb_size, ImageParameters::mb_x, ImageParameters::mb_y, ImageParameters::mpr_8x8, ImageParameters::opix_x, ImageParameters::opix_y, ImageParameters::P444_joined, pCurImg, ImageParameters::pix_x, ImageParameters::pix_y, pix_pos::pos_x, pix_pos::pos_y, RDCost_for_8x8IntraBlocks(), reset_coding_state_cs_cm(), select_plane(), and InputParameters::UseConstrainedIntraPred.

Referenced by init_rdopt().

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int Mode_Decision_for_8x8IntraBlocks_JM_Low	(	Slice *	currSlice,
		Macroblock *	currMB,
		int	b8,
		double	lambda,
		double *	min_cost,
		int	cr_cbp[3]
	)

8x8 Intra mode decision for a macroblock - Low complexity

Definition at line 299 of file transform8x8.c.

References pix_pos::available, compute_comp_cost8x8(), get4x4Neighbour(), ImageParameters::intra_block, macroblock::intra_pred_modes8x8, intrapred_8x8(), ImageParameters::ipredmode, ImageParameters::ipredmode8x8, pix_pos::mb_addr, ImageParameters::mb_ores, ImageParameters::mb_pred, ImageParameters::mb_size, ImageParameters::mb_x, ImageParameters::mb_y, ImageParameters::mpr_8x8, ImageParameters::opix_x, ImageParameters::opix_y, ImageParameters::P444_joined, pCurImg, ImageParameters::pix_x, ImageParameters::pix_y, pix_pos::pos_x, pix_pos::pos_y, select_plane(), and InputParameters::UseConstrainedIntraPred.

Referenced by init_rdopt().

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int Mode_Decision_for_Intra8x8Macroblock	(	Slice *	currSlice,
		Macroblock *	currMB,
		double	lambda,
		double *	min_cost
	)

8x8 Intra mode decision for a macroblock

Definition at line 245 of file transform8x8.c.

References ImageParameters::P444_joined.

Referenced by encode_one_macroblock_low(), and RDCost_for_macroblocks().

double RDCost_for_8x8IntraBlocks	(	Slice *	currSlice,
		Macroblock *	currMB,
		int *	c_nz,
		int	b8,
		int	ipmode,
		double	lambda,
		double	min_rdcost,
		int	mostProbableMode,
		int	c_nzCbCr[3]
	)

R-D Cost for an 8x8 Intra block.

Definition at line 1416 of file transform8x8.c.

References assignSE2partition, syntaxelement::context, storable_picture::imgY, syntaxelement::len, ImageParameters::opix_y, ImageParameters::P444_joined, storable_picture::p_curr_img, Slice::partArr, InputParameters::partition_mode, pCurImg, ImageParameters::pix_x, ImageParameters::pix_y, select_plane(), Slice::symbol_mode, ImageParameters::type, syntaxelement::type, syntaxelement::value1, writeCoeff4x4_CAVLC(), and writeCoeff8x8_CABAC().

Referenced by Mode_Decision_for_8x8IntraBlocks_JM_High().

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