quant-generic.c File Reference

#include "strategies/generic/quant-generic.h"
#include <stdlib.h>
#include "encoder.h"
#include "rdo.h"
#include "scalinglist.h"
#include "strategies/strategies-quant.h"
#include "strategyselector.h"
#include "transform.h"
#include "fast_coeff_cost.h"

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Macros
#define	QUANT_SHIFT   14
#define	SCAN_SET_SIZE   16
#define	LOG2_SCAN_SET_SIZE   4

Functions
void	kvz_quant_generic (const encoder_state_t *const state, coeff_t *coef, coeff_t *q_coef, int32_t width, int32_t height, int8_t type, int8_t scan_idx, int8_t block_type)
	quantize transformed coefficents More...
int	kvz_quantize_residual_generic (encoder_state_t *const state, const cu_info_t *const cur_cu, const int width, const color_t color, const coeff_scan_order_t scan_order, const int use_trskip, const int in_stride, const int out_stride, const kvz_pixel *const ref_in, const kvz_pixel *const pred_in, kvz_pixel *rec_out, coeff_t *coeff_out, bool early_skip)
	Quantize residual and get both the reconstruction and coeffs. More...
void	kvz_dequant_generic (const encoder_state_t *const state, coeff_t *q_coef, coeff_t *coef, int32_t width, int32_t height, int8_t type, int8_t block_type)
	inverse quantize transformed and quantized coefficents More...
static uint32_t	coeff_abs_sum_generic (const coeff_t *coeffs, size_t length)
static INLINE void	get_coeff_weights (uint64_t wts_packed, uint16_t *weights)
static double	fast_coeff_cost_generic (const coeff_t *coeff, int32_t width, uint64_t weights)
static void	find_last_scanpos_generic (coeff_t *coef, coeff_t *dest_coeff, int8_t type, int32_t q_bits, const coeff_t *quant_coeff, struct kvz_sh_rates_t *sh_rates, const uint32_t cg_size, uint16_t *ctx_set, const uint32_t *scan, int32_t *cg_last_scanpos, int32_t *last_scanpos, uint32_t cg_num, int32_t *cg_scanpos, int32_t width, int8_t scan_mode)
int	kvz_strategy_register_quant_generic (void *opaque, uint8_t bitdepth)

Macro Definition Documentation

LOG2_SCAN_SET_SIZE

#define LOG2_SCAN_SET_SIZE   4

QUANT_SHIFT

#define QUANT_SHIFT   14

SCAN_SET_SIZE

#define SCAN_SET_SIZE   16

Function Documentation

coeff_abs_sum_generic()

static uint32_t coeff_abs_sum_generic ( const coeff_t *  coeffs, size_t  length  )

static

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fast_coeff_cost_generic()

static double fast_coeff_cost_generic ( const coeff_t *  coeff, int32_t  width, uint64_t  weights  )

static

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find_last_scanpos_generic()

static void find_last_scanpos_generic ( coeff_t *  coef, coeff_t *  dest_coeff, int8_t  type, int32_t  q_bits, const coeff_t *  quant_coeff, struct kvz_sh_rates_t *  sh_rates, const uint32_t  cg_size, uint16_t *  ctx_set, const uint32_t *  scan, int32_t *  cg_last_scanpos, int32_t *  last_scanpos, uint32_t  cg_num, int32_t *  cg_scanpos, int32_t  width, int8_t  scan_mode  )

static

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get_coeff_weights()

static INLINE void get_coeff_weights ( uint64_t  wts_packed, uint16_t *  weights  )

static

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kvz_dequant_generic()

void kvz_dequant_generic	(	const encoder_state_t *const	state,
		coeff_t *	q_coef,
		coeff_t *	coef,
		int32_t	width,
		int32_t	height,
		int8_t	type,
		int8_t	block_type
	)

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kvz_quant_generic()

void kvz_quant_generic	(	const encoder_state_t *const	state,
		coeff_t *	coef,
		coeff_t *	q_coef,
		int32_t	width,
		int32_t	height,
		int8_t	type,
		int8_t	scan_idx,
		int8_t	block_type
	)

< Represents scaling through forward transform

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kvz_quantize_residual_generic()

int kvz_quantize_residual_generic	(	encoder_state_t *const	state,
		const cu_info_t *const	cur_cu,
		const int	width,
		const color_t	color,
		const coeff_scan_order_t	scan_order,
		const int	use_trskip,
		const int	in_stride,
		const int	out_stride,
		const kvz_pixel *const	ref_in,
		const kvz_pixel *const	pred_in,
		kvz_pixel *	rec_out,
		coeff_t *	coeff_out,
		bool	early_skip
	)

Parameters

width	Transform width.
color	Color.
scan_order	Coefficient scan order.
use_trskip	Whether transform skip is used.
stride	Stride for ref_in, pred_in and rec_out.
ref_in	Reference pixels.
pred_in	Predicted pixels.
rec_out	Reconstructed pixels.
coeff_out	Coefficients used for reconstruction of rec_out.
early_skip	if this is used for early skip, bypass IT and IQ

Returns

Whether coeff_out contains any non-zero coefficients.

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kvz_strategy_register_quant_generic()

int kvz_strategy_register_quant_generic	(	void *	opaque,
		uint8_t	bitdepth
	)

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