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mv_prec.h (2163B)


      1 /*
      2 * Copyright (c) 2019, Alliance for Open Media. All rights reserved.
      3 *
      4 * This source code is subject to the terms of the BSD 2 Clause License and
      5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
      6 * was not distributed with this source code in the LICENSE file, you can
      7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
      8 * Media Patent License 1.0 was not distributed with this source code in the
      9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
     10 */
     11 
     12 #ifndef AOM_AV1_ENCODER_MV_PREC_H_
     13 #define AOM_AV1_ENCODER_MV_PREC_H_
     14 
     15 #include "av1/encoder/encoder.h"
     16 #include "av1/encoder/speed_features.h"
     17 
     18 // Q threshold for high precision mv.
     19 #define HIGH_PRECISION_MV_QTHRESH 128
     20 #if !CONFIG_REALTIME_ONLY
     21 void av1_collect_mv_stats(AV1_COMP *cpi, int current_q);
     22 
     23 static inline int av1_frame_allows_smart_mv(const AV1_COMP *cpi) {
     24  const int gf_group_index = cpi->gf_frame_index;
     25  const int gf_update_type = cpi->ppi->gf_group.update_type[gf_group_index];
     26  return !frame_is_intra_only(&cpi->common) &&
     27         !(gf_update_type == INTNL_OVERLAY_UPDATE ||
     28           gf_update_type == OVERLAY_UPDATE);
     29 }
     30 #endif  // !CONFIG_REALTIME_ONLY
     31 
     32 static inline void av1_set_high_precision_mv(AV1_COMP *cpi,
     33                                             int allow_high_precision_mv,
     34                                             int cur_frame_force_integer_mv) {
     35  MvCosts *const mv_costs = cpi->td.mb.mv_costs;
     36  // Avoid accessing 'mv_costs' when it is not allocated.
     37  if (mv_costs == NULL) return;
     38 
     39  const int copy_hp = cpi->common.features.allow_high_precision_mv =
     40      allow_high_precision_mv && !cur_frame_force_integer_mv;
     41 
     42  mv_costs->nmv_cost[0] = &mv_costs->nmv_cost_alloc[0][MV_MAX];
     43  mv_costs->nmv_cost[1] = &mv_costs->nmv_cost_alloc[1][MV_MAX];
     44  mv_costs->nmv_cost_hp[0] = &mv_costs->nmv_cost_hp_alloc[0][MV_MAX];
     45  mv_costs->nmv_cost_hp[1] = &mv_costs->nmv_cost_hp_alloc[1][MV_MAX];
     46  mv_costs->mv_cost_stack =
     47      copy_hp ? mv_costs->nmv_cost_hp : mv_costs->nmv_cost;
     48 }
     49 
     50 void av1_pick_and_set_high_precision_mv(AV1_COMP *cpi, int qindex);
     51 
     52 #endif  // AOM_AV1_ENCODER_MV_PREC_H_