quant4x4_trellis.c File Reference

Quantization process for a 4x4 block using trellis based quantization. More...

#include "contributors.h"
#include <math.h>
#include "global.h"
#include "image.h"
#include "mb_access.h"
#include "vlc.h"
#include "transform.h"
#include "mc_prediction.h"
#include "q_offsets.h"
#include "q_matrix.h"
#include "quant4x4.h"
#include "rdoq.h"

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Functions
int	quant_4x4_trellis (Macroblock *currMB, int **tblock, struct quant_methods *q_method)
void	rdoq_4x4_CAVLC (Macroblock *currMB, int **tblock, struct quant_methods *q_method, int levelTrellis[])
void	rdoq_4x4_CABAC (Macroblock *currMB, int **tblock, struct quant_methods *q_method, int levelTrellis[])
int	quant_ac4x4_trellis (Macroblock *currMB, int **tblock, struct quant_methods *q_method, int type)
void	rdoq_ac4x4_CAVLC (Macroblock *currMB, int **tblock, struct quant_methods *q_method, int levelTrellis[], int type)
void	rdoq_ac4x4_CABAC (Macroblock *currMB, int **tblock, struct quant_methods *q_method, int levelTrellis[], int type)
int	quant_dc4x4_trellis (Macroblock *currMB, int **tblock, int qp, int *DCLevel, int *DCRun, LevelQuantParams *q_params_4x4, const byte(*pos_scan)[2])
void	rdoq_dc_CAVLC (Macroblock *currMB, int **tblock, int qp_per, int qp_rem, LevelQuantParams *q_params_4x4, const byte(*pos_scan)[2], int levelTrellis[], int type)
void	rdoq_dc_CABAC (Macroblock *currMB, int **tblock, int qp_per, int qp_rem, LevelQuantParams *q_params_4x4, const byte(*pos_scan)[2], int levelTrellis[], int type)

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Detailed Description

Quantization process for a 4x4 block using trellis based quantization.

Author:

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

• Qualcomm
• Limin Liu <limin.liu@dolby.com>
• Alexis Michael Tourapis <alexismt@ieee.org>

Definition in file quant4x4_trellis.c.

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Function Documentation

int quant_4x4_trellis	(	Macroblock *	currMB,
		int **	tblock,
		struct quant_methods *	q_method
	)

Quantization process for All coefficients for a 4x4 block.

Definition at line 41 of file quant4x4_trellis.c.

References MAX_VALUE, macroblock::p_Img, and macroblock::p_slice.

Referenced by init_quant_4x4().

int quant_ac4x4_trellis	(	Macroblock *	currMB,
		int **	tblock,
		struct quant_methods *	q_method,
		int	type
	)

Quantization process for All coefficients for a 4x4 block (LUMA_16AC or CHROMA_AC).

Definition at line 208 of file quant4x4_trellis.c.

References MAX_VALUE, macroblock::p_Img, and macroblock::p_slice.

Referenced by init_quant_4x4(), and init_quant_Chroma().

int quant_dc4x4_trellis	(	Macroblock *	currMB,
		int **	tblock,
		int	qp,
		int *	DCLevel,
		int *	DCRun,
		LevelQuantParams *	q_params_4x4,
		const byte(*)	pos_scan[2]
	)

Quantization process for All coefficients for a 4x4 DC block.

Definition at line 374 of file quant4x4_trellis.c.

References macroblock::p_Img, and macroblock::p_slice.

Referenced by init_quant_4x4().

void rdoq_4x4_CABAC	(	Macroblock *	currMB,
		int **	tblock,
		struct quant_methods *	q_method,
		int	levelTrellis[]
	)

Rate distortion optimized Quantization process for all coefficients in a 4x4 block (CABAC).

Definition at line 169 of file quant4x4_trellis.c.

References est_write_and_store_CBP_block_bit(), est_writeRunLevel_CABAC(), init_trellis_data_4x4_CABAC(), img_par::lambda_md, img_par::masterQP, and macroblock::p_Img.

Referenced by init_quant_4x4().

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void rdoq_4x4_CAVLC	(	Macroblock *	currMB,
		int **	tblock,
		struct quant_methods *	q_method,
		int	levelTrellis[]
	)

Rate distortion optimized Quantization process for all coefficients in a 4x4 block (CAVLC).

Definition at line 127 of file quant4x4_trellis.c.

References est_RunLevel_CAVLC(), init_trellis_data_4x4_CAVLC(), img_par::lambda_md, img_par::masterQP, and macroblock::p_Img.

Referenced by init_quant_4x4().

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void rdoq_ac4x4_CABAC	(	Macroblock *	currMB,
		int **	tblock,
		struct quant_methods *	q_method,
		int	levelTrellis[],
		int	type
	)

Rate distortion optimized Quantization process for all coefficients in a 4x4 block (LUMA_16AC or CHROMA_AC) - CABAC.

Definition at line 337 of file quant4x4_trellis.c.

References est_write_and_store_CBP_block_bit(), est_writeRunLevel_CABAC(), init_trellis_data_4x4_CABAC(), img_par::lambda_md, img_par::masterQP, and macroblock::p_Img.

Referenced by init_quant_4x4().

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void rdoq_ac4x4_CAVLC	(	Macroblock *	currMB,
		int **	tblock,
		struct quant_methods *	q_method,
		int	levelTrellis[],
		int	type
	)

Rate distortion optimized Quantization process for all coefficients in a 4x4 block (CAVLC).

Definition at line 295 of file quant4x4_trellis.c.

References est_RunLevel_CAVLC(), init_trellis_data_4x4_CAVLC(), img_par::lambda_md, img_par::masterQP, and macroblock::p_Img.

Referenced by init_quant_4x4().

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void rdoq_dc_CABAC	(	Macroblock *	currMB,
		int **	tblock,
		int	qp_per,
		int	qp_rem,
		LevelQuantParams *	q_params_4x4,
		const byte(*)	pos_scan[2],
		int	levelTrellis[],
		int	type
	)

Rate distortion optimized Quantization process for all coefficients in a luma DC block.

Definition at line 476 of file quant4x4_trellis.c.

References est_write_and_store_CBP_block_bit(), est_writeRunLevel_CABAC(), init_trellis_data_DC_CABAC(), img_par::lambda_md, img_par::masterQP, and macroblock::p_Img.

Referenced by init_quant_4x4().

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void rdoq_dc_CAVLC	(	Macroblock *	currMB,
		int **	tblock,
		int	qp_per,
		int	qp_rem,
		LevelQuantParams *	q_params_4x4,
		const byte(*)	pos_scan[2],
		int	levelTrellis[],
		int	type
	)

Rate distortion optimized Quantization process for all coefficients in a luma DC block.

Definition at line 446 of file quant4x4_trellis.c.

References est_RunLevel_CAVLC(), init_trellis_data_DC_CAVLC(), img_par::lambda_md, img_par::masterQP, and macroblock::p_Img.

Referenced by init_quant_4x4().

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