chromium/third_party/libaom/source/libaom/av1/encoder/encodemv.h

/*
 * Copyright (c) 2016, Alliance for Open Media. All rights reserved.
 *
 * This source code is subject to the terms of the BSD 2 Clause License and
 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 * was not distributed with this source code in the LICENSE file, you can
 * obtain it at www.aomedia.org/license/software. 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 www.aomedia.org/license/patent.
 */

#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, aom_writer *w, ThreadData *td, 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,
                         MvSubpelPrecision precision);

void av1_build_nmv_cost_table(int *mvjoint, int *mvcost[2],
                              const nmv_context *mvctx,
                              MvSubpelPrecision precision);
void av1_build_nmv_component_cost_table(int *mvcost,
                                        const nmv_component *const mvcomp,
                                        MvSubpelPrecision precision);

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);
void av1_find_best_ref_mvs_from_stack(int allow_hp,
                                      const MB_MODE_INFO_EXT *mbmi_ext,
                                      MV_REFERENCE_FRAME ref_frame,
                                      int_mv *nearest_mv, int_mv *near_mv,
                                      int is_integer);

static inline MV_JOINT_TYPE av1_get_mv_joint(const MV *mv) { … }

static inline int av1_mv_class_base(MV_CLASS_TYPE c) { … }

// 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) { … }

static inline MV_CLASS_TYPE av1_get_mv_class(int z, int *offset) { … }

static inline int av1_check_newmv_joint_nonzero(const AV1_COMMON *cm,
                                                MACROBLOCK *const x) { … }
#ifdef __cplusplus
}  // extern "C"
#endif

#endif  // AOM_AV1_ENCODER_ENCODEMV_H_