libavc/encoder/ih264e_me.h
Ram Mohan M 50fd862b8d libavcenc: Remove duplicate code and improve readability
This commit does not introduce any new functionality w.r.t previous
commit. But it fixes few things. They are listed below:
1. Guard Bands in header files are fixed
2. Header files contains function definition comments. These are same
as in source file. Maintaining same comment at two locations is
unnecessary. These are removed.
3. Improved consistency and code indentation
4. Removed comments that dont align with implementation
5. Grouped headers of a workspace together
2023-10-01 01:37:17 +05:30

120 lines
4.3 KiB
C

/******************************************************************************
*
* 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_ */