mode_decision.c File Reference

Main macroblock mode decision functions and helpers. More...

#include <math.h>
#include <limits.h>
#include <float.h>
#include "global.h"
#include "rdopt_coding_state.h"
#include "mb_access.h"
#include "intrarefresh.h"
#include "image.h"
#include "transform8x8.h"
#include "ratectl.h"
#include "mode_decision.h"
#include "fmo.h"
#include "me_umhex.h"
#include "me_umhexsmp.h"
#include "macroblock.h"
#include "rdoq.h"
#include "errdo.h"
#include "q_around.h"

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Functions
void	reset_valid_modes (RD_PARAMS *enc_mb)
void	init_enc_mb_params (Macroblock *currMB, RD_PARAMS *enc_mb, int intra, int bslice)
void	list_prediction_cost (Macroblock *currMB, int list, int block, int mode, RD_PARAMS *enc_mb, int bmcost[5], char best_ref[2])
int	compute_ref_cost (RD_PARAMS *enc_mb, int ref, int list)
void	determine_prediction_list (int mode, int bmcost[5], char best_ref[2], char *best_pdir, int *cost, short *bipred_me)
void	compute_mode_RD_cost (Slice *currSlice, Macroblock *currMB, RD_PARAMS *enc_mb, int mode, double *min_rdcost, double *min_dcost, double *min_rate, int i16mode, short bslice, short *inter_skip, int is_cavlc)
void	submacroblock_mode_decision (Slice *currSlice, RD_PARAMS *enc_mb, RD_8x8DATA *dataTr, Macroblock *currMB, int ****cofACtr, int *have_direct, short bslice, int block, int *cost_direct, int *cost, int *cost8x8_direct, int transform8x8, int is_cavlc)
void	submacroblock_mode_decision_low (Slice *currSlice, RD_PARAMS *enc_mb, RD_8x8DATA *dataTr, Macroblock *currMB, int ****cofACtr, int *have_direct, short bslice, int block, int *cost_direct, int *cost, int *cost8x8_direct, int transform8x8, int is_cavlc)
int	check_for_SI16 ()
void	get_initial_mb16x16_cost (Macroblock *currMB)
void	adjust_mb16x16_cost (int cost)
void	update_lambda_costs (RD_PARAMS *enc_mb, int lambda_mf[3])
int	iminarray (int arr[], int size, int *minind)
int	is_bipred_enabled (int mode)
int	transform_termination_control (Macroblock *currMB, int mode, int bslice)
int	bslice_16x16_termination_control (Block8x8Info *b8x8info, int *ctr16x16, int mode, int bslice)
Variables
const int	b8_mode_table [6] = {0, 4, 5, 6, 7}
const int	mb_mode_table [9] = {0, 1, 2, 3, P8x8, I16MB, I4MB, I8MB, IPCM}
int	luma_transform_size_8x8_flag

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Detailed Description

Main macroblock mode decision functions and helpers.

Definition in file mode_decision.c.

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Function Documentation

int bslice_16x16_termination_control	(	Block8x8Info *	b8x8info,
		int *	ctr16x16,
		int	mode,
		int	bslice
	)

Update prediction direction for mode P16x16 to check all prediction directions.

Definition at line 1342 of file mode_decision.c.

References Block8x8Info::best8x8pdir, Block8x8Info::bipred8x8me, InputParameters::BiPredMotionEstimation, and error().

Referenced by compute_mode_RD_cost().

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int check_for_SI16

(

void

)

Checks whether a primary SP slice macroblock was encoded as I16.

Definition at line 1196 of file mode_decision.c.

References ImageParameters::pix_x, and ImageParameters::pix_y.

Referenced by init_enc_mb_params().

void compute_mode_RD_cost	(	Slice *	currSlice,
		Macroblock *	currMB,
		RD_PARAMS *	enc_mb,
		int	mode,
		double *	min_rdcost,
		double *	min_dcost,
		double *	min_rate,
		int	i16mode,
		short	bslice,
		short *	inter_skip,
		int	is_cavlc
	)

RD decision process.

Definition at line 310 of file mode_decision.c.

References ImageParameters::AdaptiveRounding, ImageParameters::ARCofAdj4x4, ImageParameters::ARCofAdj8x8, ImageParameters::b8x8info, bslice_16x16_termination_control(), macroblock::c_ipred_mode, macroblock::cbp, ImageParameters::cofAC, InputParameters::EarlySkipEnable, InputParameters::FastCrIntraDecision, ImageParameters::lossless_qpprime_flag, macroblock::luma_transform_size_8x8_flag, InputParameters::nobskip, ImageParameters::NoResidueDirect, ImageParameters::opix_x, ImageParameters::opix_y, macroblock::qp_scaled, rc_store_diff(), InputParameters::RCEnable, RDCost_for_macroblocks(), InputParameters::rdopt, reset_adaptive_rounding_direct(), SetModesAndRefframeForBlocks(), store_macroblock_parameters(), InputParameters::Transform8x8Mode, transform_termination_control(), and update_adaptive_rounding_16x16().

Referenced by encode_one_macroblock_high(), encode_one_macroblock_highfast(), and encode_one_macroblock_highloss().

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void determine_prediction_list	(	int	mode,
		int	bmcost[5],
		char	best_ref[2],
		char *	best_pdir,
		int *	cost,
		short *	bipred_me
	)

Determination of prediction list based on simple distortion computation.

Definition at line 284 of file mode_decision.c.

References iminarray().

Referenced by encode_one_macroblock_high(), encode_one_macroblock_highfast(), encode_one_macroblock_highloss(), encode_one_macroblock_low(), submacroblock_mode_decision(), and submacroblock_mode_decision_low().

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int iminarray	(	int	arr[],
		int	size,
		int *	minind
	)

Return array's minimum and its index.

Definition at line 1256 of file mode_decision.c.

Referenced by determine_prediction_list().

void init_enc_mb_params	(	Macroblock *	currMB,
		RD_PARAMS *	enc_mb,
		int	intra,
		int	bslice
	)

Initialize Encoding parameters for Macroblock.

Definition at line 55 of file mode_decision.c.

References macroblock::c_ipred_mode, check_for_SI16(), storable_picture::chroma_vector_adjustment, InputParameters::DisableIntra16x16, InputParameters::DisableIntra4x4, InputParameters::DisableIntraInInter, InputParameters::EnableIPCM, F_PEL, H_PEL, InputParameters::InterSearch, ImageParameters::lambda_md, ImageParameters::lambda_me, ImageParameters::lambda_mf, macroblock::list_offset, ImageParameters::masterQP, macroblock::mb_field, macroblock::mb_nr, ImageParameters::MbaffFrameFlag, ImageParameters::nal_reference_idc, Q_PEL, ImageParameters::qp, InputParameters::RDOQ_CP_Mode, reset_valid_modes(), storable_picture::structure, ImageParameters::structure, InputParameters::Transform8x8Mode, ImageParameters::type, and InputParameters::UseRDOQuant.

Referenced by encode_one_macroblock_high(), encode_one_macroblock_highfast(), encode_one_macroblock_highloss(), and encode_one_macroblock_low().

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int is_bipred_enabled

(

int

mode

)

Determines whether bi prediction is enabaled for current mode.

Definition at line 1278 of file mode_decision.c.

References InputParameters::BiPredMotionEstimation, and InputParameters::BiPredSearch.

Referenced by BlockMotionSearch(), ChromaPrediction(), ChromaPrediction4x4(), encode_one_macroblock_high(), encode_one_macroblock_highfast(), encode_one_macroblock_highloss(), encode_one_macroblock_low(), LumaPrediction(), set_stored_macroblock_parameters(), SetRefAndMotionVectors(), submacroblock_mode_decision(), submacroblock_mode_decision_low(), and writeMotionVector8x8().

void list_prediction_cost	(	Macroblock *	currMB,
		int	list,
		int	block,
		int	mode,
		RD_PARAMS *	enc_mb,
		int	bmcost[5],
		char	best_ref[2]
	)

computation of prediction list (including biprediction) cost

Definition at line 202 of file mode_decision.c.

References BIDPartitionCost(), BPredPartitionCost(), ImageParameters::checkref, CheckReliabilityOfRef(), Q_PEL, InputParameters::rdopt, InputParameters::RestrictRef, InputParameters::sp2_frame_indicator, InputParameters::sp_output_indicator, and ImageParameters::type.

Referenced by encode_one_macroblock_high(), encode_one_macroblock_highfast(), encode_one_macroblock_highloss(), encode_one_macroblock_low(), submacroblock_mode_decision(), and submacroblock_mode_decision_low().

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void reset_valid_modes

(

RD_PARAMS *

enc_mb

)

Reset Valid Modes.

Definition at line 43 of file mode_decision.c.

Referenced by init_enc_mb_params().

void submacroblock_mode_decision	(	Slice *	currSlice,
		RD_PARAMS *	enc_mb,
		RD_8x8DATA *	dataTr,
		Macroblock *	currMB,
		int ****	cofACtr,
		int *	have_direct,
		short	bslice,
		int	block,
		int *	cost_direct,
		int *	cost,
		int *	cost8x8_direct,
		int	transform8x8,
		int	is_cavlc
	)

Mode Decision for an 8x8 sub-macroblock.

Definition at line 407 of file mode_decision.c.

References ImageParameters::all_mv, ImageParameters::ARCofAdj4x4, ImageParameters::ARCofAdj8x8, macroblock::b8mode, ImageParameters::bipred_mv, ImageParameters::block_x, ImageParameters::block_y, ImageParameters::cofAC, InputParameters::CtxAdptLagrangeMult, Decoders::dec_mb_pred, Decoders::dec_mb_pred_best8x8, Decoders::dec_mbY_best8x8, determine_prediction_list(), direct_pdir, direct_ref_idx, errdo_get_best_block(), errdo_store_best_block(), F_PEL, H_PEL, storable_picture::imgUV, storable_picture::imgY, is_bipred_enabled(), list_prediction_cost(), macroblock::luma_transform_size_8x8_flag, macroblock::mb_nr, ImageParameters::mb_pred, storable_picture::motion, pic_motion_params::mv, ImageParameters::nz_coeff, ImageParameters::P444_joined, storable_picture::p_dec_img, PartitionMotionSearch(), ImageParameters::pix_x, ImageParameters::pix_y, Q_PEL, RDCost_for_8x8blocks(), InputParameters::rdopt, pic_motion_params::ref_idx, pic_motion_params::ref_pic_id, storable_picture::ref_pic_num, reset_coding_state(), SetRefAndMotionVectors(), store_coding_state(), StoreNewMotionVectorsBlock8x8(), ImageParameters::type, update_adaptive_rounding_8x8(), and macroblock::valid_8x8.

Referenced by encode_one_macroblock_high(), encode_one_macroblock_highfast(), and encode_one_macroblock_highloss().

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void submacroblock_mode_decision_low	(	Slice *	currSlice,
		RD_PARAMS *	enc_mb,
		RD_8x8DATA *	dataTr,
		Macroblock *	currMB,
		int ****	cofACtr,
		int *	have_direct,
		short	bslice,
		int	block,
		int *	cost_direct,
		int *	cost,
		int *	cost8x8_direct,
		int	transform8x8,
		int	is_cavlc
	)

Low Complexity Mode Decision for an 8x8 sub-macroblock.

Definition at line 779 of file mode_decision.c.

References macroblock::ar_mode, ImageParameters::ARCofAdj4x4, ImageParameters::ARCofAdj8x8, macroblock::b8mode, B8Mode2Value(), macroblock::bipred_me, ImageParameters::block_x, ImageParameters::block_y, ImageParameters::cofAC, InputParameters::CtxAdptLagrangeMult, determine_prediction_list(), direct_pdir, direct_ref_idx, F_PEL, GetDirectCost8x8(), H_PEL, storable_picture::imgUV, storable_picture::imgY, is_bipred_enabled(), list_prediction_cost(), macroblock::luma_transform_size_8x8_flag, LumaResidualCoding8x8(), macroblock::mb_nr, ImageParameters::mb_pred, storable_picture::motion, ImageParameters::nz_coeff, ImageParameters::P444_joined, PartitionMotionSearch(), ImageParameters::pix_x, ImageParameters::pix_y, Q_PEL, pic_motion_params::ref_idx, pic_motion_params::ref_pic_id, storable_picture::ref_pic_num, reset_coding_state(), SetRefAndMotionVectors(), store_coding_state(), StoreNewMotionVectorsBlock8x8(), InputParameters::Transform8x8Mode, ImageParameters::type, update_adaptive_rounding_8x8(), and macroblock::valid_8x8.

Referenced by encode_one_macroblock_low().

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int transform_termination_control	(	Macroblock *	currMB,
		int	mode,
		int	bslice
	)

Decides whether to perform tranform 8x8 for this mode.

Definition at line 1308 of file mode_decision.c.

References macroblock::luma_transform_size_8x8_flag, and InputParameters::Transform8x8Mode.

Referenced by compute_mode_RD_cost().