inter.h File Reference

Inter prediction. More...

#include "cu.h"
#include "encoderstate.h"
#include "global.h"
#include "image.h"
#include "kvazaar.h"

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Data Structures
struct	inter_merge_cand_t

Functions
void	kvz_inter_recon_cu (const encoder_state_t *const state, lcu_t *lcu, int32_t x, int32_t y, int32_t width, bool predict_luma, bool predict_chroma)
	Reconstruct a single CU.
void	kvz_inter_pred_pu (const encoder_state_t *const state, lcu_t *lcu, int32_t x, int32_t y, int32_t width, bool predict_luma, bool predict_chroma, int i_pu)
	Predict a single PU.
void	kvz_inter_recon_bipred (const encoder_state_t *const state, const kvz_picture *ref1, const kvz_picture *ref2, int32_t xpos, int32_t ypos, int32_t width, int32_t height, int16_t mv_param[2][2], lcu_t *lcu, bool predict_luma, bool predict_chroma)
	Reconstruct bi-pred inter PU.
void	kvz_inter_get_mv_cand (const encoder_state_t *const state, int32_t x, int32_t y, int32_t width, int32_t height, int16_t mv_cand[2][2], const cu_info_t *cur_cu, lcu_t *lcu, int8_t reflist)
	Get MV prediction for current block.
void	kvz_inter_get_mv_cand_cua (const encoder_state_t *const state, int32_t x, int32_t y, int32_t width, int32_t height, int16_t mv_cand[2][2], const cu_info_t *cur_cu, int8_t reflist)
	Get MV prediction for current block using state->tile->frame->cu_array.
uint8_t	kvz_inter_get_merge_cand (const encoder_state_t *const state, int32_t x, int32_t y, int32_t width, int32_t height, bool use_a1, bool use_b1, inter_merge_cand_t mv_cand[5], lcu_t *lcu)
	Get merge predictions for current block.

Function Documentation

kvz_inter_get_merge_cand()

uint8_t kvz_inter_get_merge_cand	(	const encoder_state_t *const	state,
		int32_t	x,
		int32_t	y,
		int32_t	width,
		int32_t	height,
		bool	use_a1,
		bool	use_b1,
		inter_merge_cand_t	mv_cand[5],
		lcu_t *	lcu
	)

Parameters

state	the encoder state
x	block x position in SCU
y	block y position in SCU
width	block width
height	block height
use_a1	true, if candidate a1 can be used
use_b1	true, if candidate b1 can be used
mv_cand	Returns the merge candidates.
lcu	lcu containing the block

Returns

number of merge candidates

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kvz_inter_get_mv_cand()

void kvz_inter_get_mv_cand	(	const encoder_state_t *const	state,
		int32_t	x,
		int32_t	y,
		int32_t	width,
		int32_t	height,
		int16_t	mv_cand[2][2],
		const cu_info_t *const	cur_cu,
		lcu_t *	lcu,
		int8_t	reflist
	)

Parameters

state	encoder state
x	block x position in pixels
y	block y position in pixels
width	block width in pixels
height	block height in pixels
mv_cand	Return the motion vector candidates.
cur_cu	current CU
lcu	current LCU
reflist	reflist index (either 0 or 1)

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kvz_inter_get_mv_cand_cua()

void kvz_inter_get_mv_cand_cua	(	const encoder_state_t *const	state,
		int32_t	x,
		int32_t	y,
		int32_t	width,
		int32_t	height,
		int16_t	mv_cand[2][2],
		const cu_info_t *	cur_cu,
		int8_t	reflist
	)

Parameters

state	encoder state
x	block x position in pixels
y	block y position in pixels
width	block width in pixels
height	block height in pixels
mv_cand	Return the motion vector candidates.
cur_cu	current CU
reflist	reflist index (either 0 or 1)

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kvz_inter_pred_pu()

void kvz_inter_pred_pu	(	const encoder_state_t *const	state,
		lcu_t *	lcu,
		int32_t	x,
		int32_t	y,
		int32_t	width,
		bool	predict_luma,
		bool	predict_chroma,
		int	i_pu
	)

The PU may use either uniprediction or biprediction.

Parameters

state	encoder state
lcu	containing LCU
x	x-coordinate of the CU in pixels
y	y-coordinate of the CU in pixels
width	CU width
predict_luma	Enable or disable luma prediction for this call.
predict_chroma	Enable or disable chroma prediction for this call.
i_pu	Index of the PU. Always zero for 2Nx2N. Used for SMP+AMP.

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kvz_inter_recon_bipred()

void kvz_inter_recon_bipred	(	const encoder_state_t *const	state,
		const kvz_picture *	ref1,
		const kvz_picture *	ref2,
		int32_t	pu_x,
		int32_t	pu_y,
		int32_t	pu_w,
		int32_t	pu_h,
		int16_t	mv_param[2][2],
		lcu_t *	lcu,
		bool	predict_luma,
		bool	predict_chroma
	)

Parameters

state	encoder state
ref1	reference picture to copy the data from
ref2	other reference picture to copy the data from
pu_x	PU x position
pu_y	PU y position
width	PU width
height	PU height
mv_param	motion vectors
lcu	destination lcu
predict_luma	Enable or disable luma prediction for this call.
predict_chroma	Enable or disable chroma prediction for this call.

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kvz_inter_recon_cu()

void kvz_inter_recon_cu	(	const encoder_state_t *const	state,
		lcu_t *	lcu,
		int32_t	x,
		int32_t	y,
		int32_t	width,
		bool	predict_luma,
		bool	predict_chroma
	)

The CU may consist of multiple PUs, each of which can use either uniprediction or biprediction.

Parameters

state	encoder state
lcu	containing LCU
x	x-coordinate of the CU in pixels
y	y-coordinate of the CU in pixels
width	CU width
predict_luma	Enable or disable luma prediction for this call.
predict_chroma	Enable or disable chroma prediction for this call.

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