TUT HEVC Encoder
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inter.h File Reference

Inter prediction.

#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
statethe encoder state
xblock x position in SCU
yblock y position in SCU
widthblock width
heightblock height
use_a1true, if candidate a1 can be used
use_b1true, if candidate b1 can be used
mv_candReturns the merge candidates.
lculcu 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
stateencoder state
xblock x position in pixels
yblock y position in pixels
widthblock width in pixels
heightblock height in pixels
mv_candReturn the motion vector candidates.
cur_cucurrent CU
lcucurrent LCU
reflistreflist 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
stateencoder state
xblock x position in pixels
yblock y position in pixels
widthblock width in pixels
heightblock height in pixels
mv_candReturn the motion vector candidates.
cur_cucurrent CU
reflistreflist 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
stateencoder state
lcucontaining LCU
xx-coordinate of the CU in pixels
yy-coordinate of the CU in pixels
widthCU width
predict_lumaEnable or disable luma prediction for this call.
predict_chromaEnable or disable chroma prediction for this call.
i_puIndex 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
stateencoder state
ref1reference picture to copy the data from
ref2other reference picture to copy the data from
pu_xPU x position
pu_yPU y position
widthPU width
heightPU height
mv_parammotion vectors
lcudestination lcu
predict_lumaEnable or disable luma prediction for this call.
predict_chromaEnable 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
stateencoder state
lcucontaining LCU
xx-coordinate of the CU in pixels
yy-coordinate of the CU in pixels
widthCU width
predict_lumaEnable or disable luma prediction for this call.
predict_chromaEnable or disable chroma prediction for this call.
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