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/*
* Copyright (c) 2021, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 3-Clause Clear License
* and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear
* License was not distributed with this source code in the LICENSE file, you
* can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. If the
* Alliance for Open Media Patent License 1.0 was not distributed with this
* source code in the PATENTS file, you can obtain it at
* aomedia.org/license/patent-license/.
*/
#ifndef AOM_AV1_ENCODER_ENCODEMV_H_
#define AOM_AV1_ENCODER_ENCODEMV_H_
#include "av1/encoder/encoder.h"
#ifdef __cplusplus
extern "C" {
#endif
#if CONFIG_FLEX_MVRES
void av1_encode_mv(AV1_COMP *cpi, aom_writer *w, MV mv, MV ref,
nmv_context *mvctx, MvSubpelPrecision pb_mv_precision);
void av1_update_mv_stats(MV mv, MV ref, nmv_context *mvctx,
#if CONFIG_ADAPTIVE_MVD
int is_adaptive_mvd,
#endif // CONFIG_ADAPTIVE_MVD
MvSubpelPrecision precision);
#else
void av1_encode_mv(AV1_COMP *cpi, aom_writer *w, const MV *mv, const MV *ref,
nmv_context *mvctx, int usehp);
void av1_update_mv_stats(const MV *mv, const MV *ref, nmv_context *mvctx,
#if CONFIG_ADAPTIVE_MVD
int is_adaptive_mvd,
#endif // CONFIG_ADAPTIVE_MVD
MvSubpelPrecision precision);
#endif
void av1_build_nmv_cost_table(int *mvjoint,
#if CONFIG_ADAPTIVE_MVD && !CONFIG_FLEX_MVRES
int *amvd_mvjoint, int *amvd_mvcost[2],
#endif // CONFIG_ADAPTIVE_MVD
int *mvcost[2], const nmv_context *mvctx,
MvSubpelPrecision precision
#if CONFIG_ADAPTIVE_MVD && CONFIG_FLEX_MVRES
,
int is_adaptive_mvd
#endif
);
void av1_update_mv_count(ThreadData *td);
void av1_encode_dv(aom_writer *w, const MV *mv, const MV *ref,
nmv_context *mvctx);
int_mv av1_get_ref_mv(const MACROBLOCK *x, int ref_idx);
int_mv av1_get_ref_mv_from_stack(int ref_idx,
const MV_REFERENCE_FRAME *ref_frame,
int ref_mv_idx,
const MB_MODE_INFO_EXT *mbmi_ext);
#if CONFIG_FLEX_MVRES
int_mv av1_find_first_ref_mv_from_stack(const MB_MODE_INFO_EXT *mbmi_ext,
MV_REFERENCE_FRAME ref_frame,
MvSubpelPrecision precision);
int_mv av1_find_best_ref_mv_from_stack(const MB_MODE_INFO_EXT *mbmi_ext,
MV_REFERENCE_FRAME ref_frame,
MvSubpelPrecision precision);
#else
int_mv av1_find_first_ref_mv_from_stack(int allow_hp,
const MB_MODE_INFO_EXT *mbmi_ext,
MV_REFERENCE_FRAME ref_frame,
int is_integer);
int_mv av1_find_best_ref_mv_from_stack(int allow_hp,
const MB_MODE_INFO_EXT *mbmi_ext,
MV_REFERENCE_FRAME ref_frame,
int is_integer);
#endif
static INLINE MV_JOINT_TYPE av1_get_mv_joint(const MV *mv) {
// row: Z col: Z | MV_JOINT_ZERO (0)
// row: Z col: NZ | MV_JOINT_HNZVZ (1)
// row: NZ col: Z | MV_JOINT_HZVNZ (2)
// row: NZ col: NZ | MV_JOINT_HNZVNZ (3)
return (!!mv->col) | ((!!mv->row) << 1);
}
static INLINE int av1_mv_class_base(MV_CLASS_TYPE c) {
return c ? CLASS0_SIZE << (c + 2) : 0;
}
#if CONFIG_FLEX_MVRES
static INLINE int av1_mv_class_base_low_precision(MV_CLASS_TYPE c) {
return c ? (1 << c) : 0;
}
#endif
// If n != 0, returns the floor of log base 2 of n. If n == 0, returns 0.
static INLINE uint8_t av1_log_in_base_2(unsigned int n) {
// get_msb() is only valid when n != 0.
return n == 0 ? 0 : get_msb(n);
}
static INLINE MV_CLASS_TYPE av1_get_mv_class(int z, int *offset) {
assert(z >= 0);
const MV_CLASS_TYPE c = (MV_CLASS_TYPE)av1_log_in_base_2(z >> 3);
assert(c <= MV_CLASS_10);
if (offset) *offset = z - av1_mv_class_base(c);
return c;
}
#if CONFIG_FLEX_MVRES
static INLINE MV_CLASS_TYPE av1_get_mv_class_low_precision(int z, int *offset) {
const MV_CLASS_TYPE c = (z == 0) ? 0 : (MV_CLASS_TYPE)av1_log_in_base_2(z);
if (offset) *offset = z - av1_mv_class_base_low_precision(c);
return c;
}
#endif
static INLINE int av1_check_newmv_joint_nonzero(const AV1_COMMON *cm,
MACROBLOCK *const x) {
(void)cm;
MACROBLOCKD *xd = &x->e_mbd;
MB_MODE_INFO *mbmi = xd->mi[0];
const PREDICTION_MODE this_mode = mbmi->mode;
#if CONFIG_OPTFLOW_REFINEMENT
if (this_mode == NEW_NEWMV || this_mode == NEW_NEWMV_OPTFLOW) {
#else
if (this_mode == NEW_NEWMV) {
#endif // CONFIG_OPTFLOW_REFINEMENT
const int_mv ref_mv_0 = av1_get_ref_mv(x, 0);
const int_mv ref_mv_1 = av1_get_ref_mv(x, 1);
if (mbmi->mv[0].as_int == ref_mv_0.as_int ||
mbmi->mv[1].as_int == ref_mv_1.as_int) {
return 0;
}
#if CONFIG_OPTFLOW_REFINEMENT
} else if (this_mode == NEAR_NEWMV || this_mode == NEAR_NEWMV_OPTFLOW) {
#else
} else if (this_mode == NEAR_NEWMV) {
#endif // CONFIG_OPTFLOW_REFINEMENT
const int_mv ref_mv_1 = av1_get_ref_mv(x, 1);
if (mbmi->mv[1].as_int == ref_mv_1.as_int) {
return 0;
}
} else if (this_mode == NEW_NEARMV
#if CONFIG_OPTFLOW_REFINEMENT
|| this_mode == NEW_NEARMV_OPTFLOW
#endif
#if CONFIG_JOINT_MVD
|| is_joint_mvd_coding_mode(this_mode)
#endif // CONFIG_JOINT_MVD
) {
const int_mv ref_mv_0 = av1_get_ref_mv(x, 0);
if (mbmi->mv[0].as_int == ref_mv_0.as_int) {
return 0;
}
} else if (this_mode == NEWMV
#if IMPROVED_AMVD
|| this_mode == AMVDNEWMV
#endif // IMPROVED_AMVD
) {
const int_mv ref_mv_0 = av1_get_ref_mv(x, 0);
if (mbmi->mv[0].as_int == ref_mv_0.as_int) {
return 0;
}
}
return 1;
}
#if CONFIG_FLEX_MVRES
static inline int check_mv_precision(const AV1_COMMON *cm,
const MB_MODE_INFO *const mbmi
#if CONFIG_C071_SUBBLK_WARPMV
,
const MACROBLOCK *x
#endif // CONFIG_C071_SUBBLK_WARPMV
) {
const int is_comp_pred = mbmi->ref_frame[1] > INTRA_FRAME;
assert(mbmi->pb_mv_precision <= mbmi->max_mv_precision);
const PREDICTION_MODE mode = mbmi->mode;
if (is_pb_mv_precision_active(cm, mbmi, mbmi->sb_type[PLANE_TYPE_Y])) {
if (mode == NEWMV || mode == NEW_NEWMV
#if CONFIG_OPTFLOW_REFINEMENT
|| mode == NEW_NEWMV_OPTFLOW
#endif
) {
for (int i = 0; i < is_comp_pred + 1; ++i) {
#if CONFIG_C071_SUBBLK_WARPMV
MV diff = { mbmi->mv[i].as_mv.row, mbmi->mv[i].as_mv.col };
MV refmv = av1_get_ref_mv(x, i).as_mv;
if (mbmi->pb_mv_precision < MV_PRECISION_HALF_PEL)
lower_mv_precision(&refmv, mbmi->pb_mv_precision);
diff.row -= refmv.row;
diff.col -= refmv.col;
if ((diff.row &
((1 << (MV_PRECISION_ONE_EIGHTH_PEL - mbmi->pb_mv_precision)) -
1)))
return 0;
if ((diff.col &
((1 << (MV_PRECISION_ONE_EIGHTH_PEL - mbmi->pb_mv_precision)) -
1)))
return 0;
#else
if ((mbmi->mv[i].as_mv.row &
((1 << (MV_PRECISION_ONE_EIGHTH_PEL - mbmi->pb_mv_precision)) -
1)))
return 0;
if ((mbmi->mv[i].as_mv.col &
((1 << (MV_PRECISION_ONE_EIGHTH_PEL - mbmi->pb_mv_precision)) -
1)))
return 0;
#endif // CONFIG_C071_SUBBLK_WARPMV
}
} else {
#if CONFIG_JOINT_MVD
const int jmvd_base_ref_list = get_joint_mvd_base_ref_list(cm, mbmi);
const int i = (mode == JOINT_NEWMV
#if CONFIG_OPTFLOW_REFINEMENT
|| mode == JOINT_NEWMV_OPTFLOW
#endif
)
? jmvd_base_ref_list
: (compound_ref1_mode(mode) == NEWMV);
#else
const int i = compound_ref1_mode(mode) == NEWMV;
#endif
#if CONFIG_C071_SUBBLK_WARPMV
MV diff = { mbmi->mv[i].as_mv.row, mbmi->mv[i].as_mv.col };
MV refmv = av1_get_ref_mv(x, i).as_mv;
if (mbmi->pb_mv_precision < MV_PRECISION_HALF_PEL)
lower_mv_precision(&refmv, mbmi->pb_mv_precision);
diff.row -= refmv.row;
diff.col -= refmv.col;
if ((diff.row &
((1 << (MV_PRECISION_ONE_EIGHTH_PEL - mbmi->pb_mv_precision)) -
1))) {
printf(" precision = %d value = %d \n", mbmi->pb_mv_precision,
diff.row);
return 0;
}
if ((diff.col &
((1 << (MV_PRECISION_ONE_EIGHTH_PEL - mbmi->pb_mv_precision)) -
1))) {
printf(" precision = %d value = %d \n", mbmi->pb_mv_precision,
diff.col);
return 0;
}
#else
if ((mbmi->mv[i].as_mv.row &
((1 << (MV_PRECISION_ONE_EIGHTH_PEL - mbmi->pb_mv_precision)) -
1))) {
printf(" precision = %d value = %d \n", mbmi->pb_mv_precision,
mbmi->mv[i].as_mv.row);
return 0;
}
if ((mbmi->mv[i].as_mv.col &
((1 << (MV_PRECISION_ONE_EIGHTH_PEL - mbmi->pb_mv_precision)) -
1))) {
printf(" precision = %d value = %d \n", mbmi->pb_mv_precision,
mbmi->mv[i].as_mv.col);
return 0;
}
#endif // CONFIG_C071_SUBBLK_WARPMV
}
}
return 1;
}
#endif
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AOM_AV1_ENCODER_ENCODEMV_H_