| /* |
| * 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 |
| |
| void av1_encode_mv(AV1_COMP *cpi, MV mv, aom_writer *w, nmv_context *mvctx, |
| const MV mv_diff, MvSubpelPrecision pb_mv_precision, |
| int is_adaptive_mvd); |
| void av1_update_mv_stats(nmv_context *mvctx, const MV mv_diff, |
| MvSubpelPrecision pb_mv_precision, |
| int is_adaptive_mvd); |
| void av1_build_vq_amvd_nmv_cost_table(MvCosts *mv_costs, |
| const nmv_context *ctx); |
| void av1_build_vq_nmv_cost_table(MvCosts *mv_costs, const nmv_context *ctx, |
| MvSubpelPrecision precision, |
| IntraBCMvCosts *dv_costs, int is_ibc); |
| |
| void av1_build_nmv_cost_table(int *mvjoint, int *mvcost[2], |
| const nmv_context *mvctx, |
| MvSubpelPrecision precision, int is_adaptive_mvd, |
| int mv_sign_cost[2][2]); |
| |
| void av1_update_mv_count(ThreadData *td); |
| |
| void av1_encode_dv(aom_writer *w, const MV *mv, const MV *ref, |
| nmv_context *mvctx, MvSubpelPrecision pb_mv_precision); |
| 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, |
| const MB_MODE_INFO *mbmi); |
| |
| 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, |
| const MB_MODE_INFO *mbmi, |
| MV_REFERENCE_FRAME ref_frame, |
| MvSubpelPrecision precision); |
| |
| 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; |
| } |
| |
| static INLINE int av1_mv_class_base_low_precision(MV_CLASS_TYPE c) { |
| return c ? (1 << c) : 0; |
| } |
| |
| // 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); |
| } |
| |
| // Get the shell class value from the shell_index and precision |
| static INLINE int get_shell_class_with_precision(const int shell_index, |
| int *shell_cls_offset) { |
| int shell_class = -1; |
| assert(shell_index >= 0); |
| shell_class = |
| (shell_index < 2) ? 0 : (MV_CLASS_TYPE)av1_log_in_base_2(shell_index); |
| // Encode int shell offset |
| const int shell_class_base_index = |
| (shell_class == 0) ? 0 : (1 << (shell_class)); |
| *shell_cls_offset = shell_index - shell_class_base_index; |
| return shell_class; |
| } |
| |
| 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_CLASSES); |
| if (offset) *offset = z - av1_mv_class_base(c); |
| return c; |
| } |
| |
| 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; |
| } |
| |
| 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 (this_mode == NEW_NEWMV || this_mode == NEW_NEWMV_OPTFLOW) { |
| 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; |
| } |
| } else if (this_mode == NEAR_NEWMV || this_mode == NEAR_NEWMV_OPTFLOW) { |
| 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 || this_mode == NEW_NEARMV_OPTFLOW || |
| is_joint_mvd_coding_mode(this_mode)) { |
| 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 || this_mode == WARP_NEWMV) { |
| 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; |
| } |
| |
| static inline int check_mv_precision(const AV1_COMMON *cm, |
| const MB_MODE_INFO *const mbmi, |
| const MACROBLOCK *x) { |
| if (!is_inter_ref_frame(mbmi->ref_frame[0])) return 1; |
| 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 == WARP_NEWMV || mode == NEW_NEWMV || |
| mode == NEW_NEWMV_OPTFLOW) { |
| for (int i = 0; i < is_comp_pred + 1; ++i) { |
| 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 { |
| const int jmvd_base_ref_list = get_joint_mvd_base_ref_list(cm, mbmi); |
| const int i = (mode == JOINT_NEWMV || mode == JOINT_NEWMV_OPTFLOW) |
| ? jmvd_base_ref_list |
| : (compound_ref1_mode(mode) == NEWMV); |
| 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; |
| } |
| } |
| } |
| return 1; |
| } |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_ENCODER_ENCODEMV_H_ |
