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/******************************************************************************
*
* Copyright (C) 2015 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
* ih264e_me.h
*
* @brief
* Contains declarations of h264 me
*
* @author
* ittiam
*
* @remarks
*
*******************************************************************************
*/
#ifndef _IH264E_ME_H_
#define _IH264E_ME_H_
/*****************************************************************************/
/* Constant Macros */
/*****************************************************************************/
/**
******************************************************************************
* @brief Skip Bias value for P slice
******************************************************************************
*/
#define SKIP_BIAS_P 0
/**
******************************************************************************
* @brief Skip Bias value for B slice
******************************************************************************
*/
#define SKIP_BIAS_B 0
/*****************************************************************************/
/* Function Macros */
/*****************************************************************************/
/**
******************************************************************************
* @brief compute median of 3 elements (a, b, c) and store the output
* in to result. This is used for mv prediction
******************************************************************************
*/
#define MEDIAN(a, b, c, result) if (a > b){\
if (b > c)\
result = b;\
else {\
if (a > c)\
result = c;\
else \
result = a;\
}\
}\
else {\
if (c > b)\
result = b;\
else {\
if (c > a)\
result = c;\
else \
result = a;\
}\
}
/*****************************************************************************/
/* Function Declarations */
/*****************************************************************************/
void ih264e_init_mv_bits(me_ctxt_t *ps_me);
ih264e_skip_params_ft ih264e_find_pskip_params;
ih264e_skip_params_ft ih264e_find_pskip_params_me;
ih264e_skip_params_ft ih264e_find_bskip_params;
ih264e_skip_params_ft ih264e_find_bskip_params_me;
void ih264e_get_mv_predictor(enc_pu_t *ps_left_mb_pu, enc_pu_t *ps_top_row_pu,
enc_pu_mv_t *ps_pred_mv, WORD32 i4_ref_list);
ih264e_compute_me_ft ih264e_compute_me_multi_reflist;
ih264e_compute_me_ft ih264e_compute_me_single_reflist;
void ih264e_init_me(process_ctxt_t *ps_proc);
void ih264e_compute_me_nmb(process_ctxt_t *ps_proc, UWORD32 u4_nmb_count);
void ih264e_mv_pred(process_ctxt_t *ps_proc, WORD32 i4_reflist);
void ih264e_mv_pred_me(process_ctxt_t *ps_proc, WORD32 i4_ref_list);
#endif /* _IH264E_ME_H_ */
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