| /****************************************************************************** |
| * |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ***************************************************************************** |
| * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
| */ |
| /*! |
| ****************************************************************************** |
| * \file hme_search_algo.h |
| * |
| * \brief |
| * contains prototypes for search algorithms called by coarse/refinement |
| * layers. |
| * |
| * \date |
| * 18/09/2012 |
| * |
| * \author |
| * Ittiam |
| * |
| ****************************************************************************** |
| */ |
| |
| #ifndef _HME_SEARCH_ALGO_H_ |
| #define _HME_SEARCH_ALGO_H_ |
| |
| /*****************************************************************************/ |
| /* Functions */ |
| /*****************************************************************************/ |
| /** |
| ******************************************************************************** |
| * @fn void hme_pred_search_square_stepn(hme_search_prms_t *ps_search_prms, |
| * layer_ctxt_t *ps_layer_ctxt) |
| * |
| * @brief Implements predictive search, with square grid refinement. In this |
| * case, we start with a bigger step size, like 4, refining upto a |
| * variable number of pts, till we hit end of search range or hit a |
| * minima. Then we refine using smaller steps. The bigger step size |
| * like 4 or 2, do not use optimized SAD functions, they evaluate |
| * SAD for each individual pt. |
| * |
| * @param[in,out] ps_search_prms: All the params to this function |
| * |
| * @param[in] ps_layer_ctxt: Context for the layer |
| * |
| * @return None |
| ******************************************************************************** |
| */ |
| void hme_pred_search_square_stepn( |
| hme_search_prms_t *ps_search_prms, |
| layer_ctxt_t *ps_layer_ctxt, |
| wgt_pred_ctxt_t *ps_wt_inp_prms, |
| ME_QUALITY_PRESETS_T e_me_quality_preset, |
| ihevce_me_optimised_function_list_t *ps_me_optimised_function_list); |
| |
| /** |
| ******************************************************************************** |
| * @fn hme_do_fullsearch(hme_search_prms_t *ps_search_prms, |
| * layer_ctxt_t *ps_layer_ctxt, |
| * hme_mv_t *ps_best_mv, |
| * pred_ctxt_t *ps_pred_ctxt, |
| * PF_MV_COST_FXN pf_mv_cost_compute) |
| * |
| * @brief Does a full search on entire srch window with a given step size |
| * |
| * @param[in] ps_search_prms : Search prms structure containing info like |
| * blk dimensions, search range etc |
| * |
| * @param[in] ps_layer_ctxt: All info about this layer |
| * |
| * @param[out] ps_best_mv : type hme_mv_t contains best mv x and y |
| * |
| * @param[in] ps_pred_ctxt : Prediction ctxt for cost computation |
| * |
| * @param[in] pf_mv_cost_compute : mv cost computation function |
| * |
| * @return void |
| ******************************************************************************** |
| */ |
| void hme_do_fullsearch( |
| hme_search_prms_t *ps_search_prms, |
| layer_ctxt_t *ps_layer_ctxt, |
| hme_mv_t *ps_best_mv, |
| pred_ctxt_t *ps_pred_ctxt, |
| PF_MV_COST_FXN pf_mv_cost_compute, |
| wgt_pred_ctxt_t *ps_wt_inp_prms, |
| ME_QUALITY_PRESETS_T e_me_quality_preset, |
| range_prms_t *ps_range_prms); |
| |
| /** |
| ******************************************************************************** |
| * @fn hme_pred_search(hme_search_prms_t *ps_search_prms, |
| * layer_ctxt_t *ps_layer_ctxt) |
| * |
| * @brief Implements predictive search after removing duplicate candidates |
| * from initial list. Each square grid (of step 1) is expanded |
| * to nine search pts before the dedeuplication process. one point |
| * cost is then evaluated for each unique node after the deduplication |
| * process |
| * |
| * @param[in,out] ps_search_prms: All the params to this function |
| * |
| * @param[in] ps_layer_ctxt: All info about this layer |
| * |
| * @param[out] pi4_valid_part_ids: Array to hold valid partitions |
| * |
| * @param[in] i4_disable_refine flag to disable refinement |
| * |
| * @return None |
| ******************************************************************************** |
| */ |
| void hme_pred_search( |
| hme_search_prms_t *ps_search_prms, |
| layer_ctxt_t *ps_layer_ctxt, |
| wgt_pred_ctxt_t *ps_wt_inp_prms, |
| S08 i1_grid_flag, |
| ihevce_me_optimised_function_list_t *ps_me_optimised_function_list); |
| |
| /** |
| ******************************************************************************** |
| * @fn void hme_pred_search_no_encode(hme_search_prms_t *ps_search_prms, |
| * layer_ctxt_t *ps_layer_ctxt, |
| * wgt_pred_ctxt_t *ps_wt_inp_prms, |
| * S32 *pi4_valid_part_ids, |
| * S32 disable_refine, |
| * ME_QUALITY_PRESETS_T e_me_quality_preset) |
| * |
| * @brief Implements predictive search after removing duplicate candidates |
| * from initial list. Each square grid (of step 1) is expanded |
| * to nine search pts before the dedeuplication process. one point |
| * cost is then evaluated for each unique node after the deduplication |
| * process |
| * |
| * @param[in,out] ps_search_prms: All the params to this function |
| * |
| * @param[in] ps_layer_ctxt: All info about this layer |
| * |
| * @return None |
| ******************************************************************************** |
| */ |
| void hme_pred_search_no_encode( |
| hme_search_prms_t *ps_search_prms, |
| layer_ctxt_t *ps_layer_ctxt, |
| wgt_pred_ctxt_t *ps_wt_inp_prms, |
| S32 *pi4_valid_part_ids, |
| S32 disable_refine, |
| ME_QUALITY_PRESETS_T e_me_quality_preset, |
| S08 i1_grid_enable, |
| ihevce_me_optimised_function_list_t *ps_me_optimised_function_list); |
| |
| #endif /* #ifndef _HME_SEARCH_ALGO_H_*/ |
