2129 lines
77 KiB
C
2129 lines
77 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*****************************************************************************
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* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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*/
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/**
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*******************************************************************************
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* @file
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* ih264e_me.c
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*
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* @brief
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* Contains definition of functions for motion estimation
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*
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* @author
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* ittiam
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*
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* @par List of Functions:
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* - ih264e_init_mv_bits()
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* - ih264e_skip_analysis_chroma()
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* - ih264e_skip_analysis_luma()
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* - ih264e_analyse_skip()
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* - ih264e_get_search_candidates()
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* - ih264e_find_skip_motion_vector()
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* - ih264e_get_mv_predictor()
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* - ih264e_mv_pred()
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* - ih264e_mv_pred_me()
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* - ih264e_init_me()
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* - ih264e_compute_me()
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* - ih264e_compute_me_nmb()
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*
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* @remarks
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* None
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*
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*******************************************************************************
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*/
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/*****************************************************************************/
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/* File Includes */
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/*****************************************************************************/
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/* System include files */
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#include <stdio.h>
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#include <assert.h>
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#include <limits.h>
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/* User include files */
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#include "ih264_typedefs.h"
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#include "iv2.h"
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#include "ive2.h"
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#include "ithread.h"
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#include "ih264_platform_macros.h"
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#include "ih264_defs.h"
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#include "ime_defs.h"
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#include "ime_distortion_metrics.h"
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#include "ime_structs.h"
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#include "ih264_structs.h"
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#include "ih264_trans_quant_itrans_iquant.h"
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#include "ih264_inter_pred_filters.h"
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#include "ih264_mem_fns.h"
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#include "ih264_padding.h"
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#include "ih264_intra_pred_filters.h"
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#include "ih264_deblk_edge_filters.h"
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#include "ih264_cabac_tables.h"
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#include "ih264e_defs.h"
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#include "ih264e_error.h"
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#include "ih264e_bitstream.h"
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#include "irc_cntrl_param.h"
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#include "irc_frame_info_collector.h"
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#include "ih264e_rate_control.h"
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#include "ih264e_cabac_structs.h"
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#include "ih264e_structs.h"
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#include "ih264e_globals.h"
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#include "ih264_macros.h"
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#include "ih264e_me.h"
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#include "ime.h"
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#include "ih264_debug.h"
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#include "ih264e_intra_modes_eval.h"
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#include "ih264e_core_coding.h"
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#include "ih264e_mc.h"
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#include "ih264e_debug.h"
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#include "ih264e_half_pel.h"
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#include "ime_statistics.h"
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#include "ih264e_platform_macros.h"
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/*****************************************************************************/
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/* Function Definitions */
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/*****************************************************************************/
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/**
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*******************************************************************************
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*
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* @brief
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* This function populates the length of the codewords for motion vectors in the
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* range (-search range, search range) in pixels
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*
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* @param[in] ps_me
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* Pointer to me ctxt
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*
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* @param[out] pu1_mv_bits
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* length of the codeword for all mv's
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*
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* @remarks The length of the code words are derived from signed exponential
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* goloumb codes.
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*
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*******************************************************************************
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*/
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void ih264e_init_mv_bits(me_ctxt_t *ps_me_ctxt)
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{
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/* temp var */
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WORD32 i, codesize = 3, diff, limit;
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UWORD32 u4_code_num, u4_range;
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UWORD32 u4_uev_min, u4_uev_max, u4_sev_min, u4_sev_max;
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/* max srch range */
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diff = MAX(DEFAULT_MAX_SRCH_RANGE_X, DEFAULT_MAX_SRCH_RANGE_Y);
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/* sub pel */
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diff <<= 2;
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/* delta mv */
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diff <<= 1;
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/* codeNum for positive integer = 2x-1 : Table9-3 */
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u4_code_num = (diff << 1);
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/* get range of the bit string and put using put_bits() */
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GETRANGE(u4_range, u4_code_num);
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limit = 2*u4_range - 1;
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/* init mv bits */
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ps_me_ctxt->pu1_mv_bits[0] = 1;
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while (codesize < limit)
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{
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u4_uev_min = (1 << (codesize >> 1));
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u4_uev_max = 2*u4_uev_min - 1;
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u4_sev_min = u4_uev_min >> 1;
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u4_sev_max = u4_uev_max >> 1;
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DEBUG("\n%d min, %d max %d codesize", u4_sev_min, u4_sev_max, codesize);
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for (i = u4_sev_min; i <= (WORD32)u4_sev_max; i++)
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{
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ps_me_ctxt->pu1_mv_bits[-i] = ps_me_ctxt->pu1_mv_bits[i] = codesize;
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}
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codesize += 2;
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}
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}
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/**
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*******************************************************************************
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*
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* @brief Determines the valid candidates for which the initial search shall happen.
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* The best of these candidates is used to center the diamond pixel search.
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*
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* @par Description: The function sends the skip, (0,0), left, top and top-right
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* neighbouring MBs MVs. The left, top and top-right MBs MVs are used because
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* these are the same MVs that are used to form the MV predictor. This initial MV
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* search candidates need not take care of slice boundaries and hence neighbor
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* availability checks are not made here.
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*
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* @param[in] ps_left_mb_pu
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* pointer to left mb motion vector info
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*
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* @param[in] ps_top_mb_pu
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* pointer to top & top right mb motion vector info
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*
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* @param[in] ps_top_left_mb_pu
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* pointer to top left mb motion vector info
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*
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* @param[out] ps_skip_mv
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* pointer to skip motion vectors for the curr mb
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*
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* @param[in] i4_mb_x
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* mb index x
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*
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* @param[in] i4_mb_y
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* mb index y
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*
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* @param[in] i4_wd_mbs
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* pic width in mbs
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*
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* @param[in] ps_motionEst
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* pointer to me context
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*
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* @returns The list of MVs to be used of priming the full pel search and the
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* number of such MVs
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*
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* @remarks
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* Assumptions : 1. Assumes Only partition of size 16x16
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*
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*******************************************************************************
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*/
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static void ih264e_get_search_candidates(process_ctxt_t *ps_proc,
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me_ctxt_t *ps_me_ctxt,
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WORD32 i4_reflist)
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{
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/* curr mb indices */
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WORD32 i4_mb_x = ps_proc->i4_mb_x;
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/* Motion vector */
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mv_t *ps_left_mv, *ps_top_mv, *ps_top_left_mv, *ps_top_right_mv;
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/* Pred modes */
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WORD32 i4_left_mode, i4_top_mode, i4_top_left_mode, i4_top_right_mode;
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/* mb part info */
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mb_part_ctxt *ps_mb_part = &ps_me_ctxt->as_mb_part[i4_reflist];
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/* mvs */
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WORD32 mvx, mvy;
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/* ngbr availability */
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block_neighbors_t *ps_ngbr_avbl = ps_proc->ps_ngbr_avbl;
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/* Current mode */
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WORD32 i4_cmpl_predmode = (i4_reflist == 0) ? PRED_L1 : PRED_L0;
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/* srch range*/
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WORD32 i4_srch_range_n = ps_me_ctxt->i4_srch_range_n;
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WORD32 i4_srch_range_s = ps_me_ctxt->i4_srch_range_s;
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WORD32 i4_srch_range_e = ps_me_ctxt->i4_srch_range_e;
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WORD32 i4_srch_range_w = ps_me_ctxt->i4_srch_range_w;
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/* num of candidate search candidates */
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UWORD32 u4_num_candidates = 0;
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ps_left_mv = &ps_proc->s_left_mb_pu_ME.s_me_info[i4_reflist].s_mv;
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ps_top_mv = &(ps_proc->ps_top_row_pu_ME + i4_mb_x)->s_me_info[i4_reflist].s_mv;
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ps_top_left_mv = &ps_proc->s_top_left_mb_pu_ME.s_me_info[i4_reflist].s_mv;
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ps_top_right_mv = &(ps_proc->ps_top_row_pu_ME + i4_mb_x + 1)->s_me_info[i4_reflist].s_mv;
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i4_left_mode = ps_proc->s_left_mb_pu_ME.b2_pred_mode != i4_cmpl_predmode;
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i4_top_mode = (ps_proc->ps_top_row_pu_ME + i4_mb_x)->b2_pred_mode != i4_cmpl_predmode;
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i4_top_left_mode = ps_proc->s_top_left_mb_pu_ME.b2_pred_mode != i4_cmpl_predmode;
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i4_top_right_mode = (ps_proc->ps_top_row_pu_ME + i4_mb_x + 1)->b2_pred_mode != i4_cmpl_predmode;
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/* Taking the Zero motion vector as one of the candidates */
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvx = 0;
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvy = 0;
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u4_num_candidates++;
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/* Taking the Left MV Predictor as one of the candidates */
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if (ps_ngbr_avbl->u1_mb_a && i4_left_mode)
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{
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mvx = (ps_left_mv->i2_mvx + 2) >> 2;
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mvy = (ps_left_mv->i2_mvy + 2) >> 2;
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mvx = CLIP3(i4_srch_range_w, i4_srch_range_e, mvx);
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mvy = CLIP3(i4_srch_range_n, i4_srch_range_s, mvy);
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvx = mvx;
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvy = mvy;
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u4_num_candidates ++;
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}
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/* Taking the Top MV Predictor as one of the candidates */
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if (ps_ngbr_avbl->u1_mb_b && i4_top_mode)
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{
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mvx = (ps_top_mv->i2_mvx + 2) >> 2;
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mvy = (ps_top_mv->i2_mvy + 2) >> 2;
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mvx = CLIP3(i4_srch_range_w, i4_srch_range_e, mvx);
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mvy = CLIP3(i4_srch_range_n, i4_srch_range_s, mvy);
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvx = mvx;
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvy = mvy;
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u4_num_candidates ++;
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/* Taking the TopRt MV Predictor as one of the candidates */
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if (ps_ngbr_avbl->u1_mb_c && i4_top_right_mode)
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{
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mvx = (ps_top_right_mv->i2_mvx + 2) >> 2;
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mvy = (ps_top_right_mv->i2_mvy + 2)>> 2;
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mvx = CLIP3(i4_srch_range_w, i4_srch_range_e, mvx);
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mvy = CLIP3(i4_srch_range_n, i4_srch_range_s, mvy);
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvx = mvx;
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvy = mvy;
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u4_num_candidates ++;
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}
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/* Taking the TopLt MV Predictor as one of the candidates */
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else if(ps_ngbr_avbl->u1_mb_d && i4_top_left_mode)
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{
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mvx = (ps_top_left_mv->i2_mvx + 2) >> 2;
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mvy = (ps_top_left_mv->i2_mvy + 2) >> 2;
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mvx = CLIP3(i4_srch_range_w, i4_srch_range_e, mvx);
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mvy = CLIP3(i4_srch_range_n, i4_srch_range_s, mvy);
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvx = mvx;
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvy = mvy;
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u4_num_candidates ++;
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}
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}
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/********************************************************************/
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/* MV Prediction */
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/********************************************************************/
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ih264e_mv_pred_me(ps_proc, i4_reflist);
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ps_mb_part->s_mv_pred.i2_mvx = ps_proc->ps_pred_mv[i4_reflist].s_mv.i2_mvx;
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ps_mb_part->s_mv_pred.i2_mvy = ps_proc->ps_pred_mv[i4_reflist].s_mv.i2_mvy;
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/* Get the skip motion vector */
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{
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ps_me_ctxt->i4_skip_type = ps_proc->ps_codec->apf_find_skip_params_me
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[ps_proc->i4_slice_type](ps_proc, i4_reflist);
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/* Taking the Skip motion vector as one of the candidates */
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mvx = (ps_proc->ps_skip_mv[i4_reflist].s_mv.i2_mvx + 2) >> 2;
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mvy = (ps_proc->ps_skip_mv[i4_reflist].s_mv.i2_mvy + 2) >> 2;
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mvx = CLIP3(i4_srch_range_w, i4_srch_range_e, mvx);
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mvy = CLIP3(i4_srch_range_n, i4_srch_range_s, mvy);
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvx = mvx;
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvy = mvy;
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u4_num_candidates++;
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if (ps_proc->i4_slice_type == BSLICE)
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{
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/* Taking the temporal Skip motion vector as one of the candidates */
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mvx = (ps_proc->ps_skip_mv[i4_reflist + 2].s_mv.i2_mvx + 2) >> 2;
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mvy = (ps_proc->ps_skip_mv[i4_reflist + 2].s_mv.i2_mvy + 2) >> 2;
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mvx = CLIP3(i4_srch_range_w, i4_srch_range_e, mvx);
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mvy = CLIP3(i4_srch_range_n, i4_srch_range_s, mvy);
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvx = mvx;
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ps_me_ctxt->as_mv_init_search[i4_reflist][u4_num_candidates].i2_mvy = mvy;
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u4_num_candidates++;
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}
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}
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ASSERT(u4_num_candidates <= 6);
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ps_me_ctxt->u4_num_candidates[i4_reflist] = u4_num_candidates;
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}
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/**
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*******************************************************************************
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*
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* @brief The function computes parameters for a PSKIP MB
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*
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* @par Description:
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* The function updates the skip motion vector and checks if the current
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* MB can be a skip PSKIP mB or not
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*
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* @param[in] ps_proc
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* Pointer to process context
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*
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* @param[in] u4_for_me
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* Flag to indicate function is called for ME or not
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*
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* @param[out] i4_ref_list
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* Current active refernce list
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*
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* @returns Flag indicating if the current MB can be marked as skip
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*
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* @remarks The code implements the logic as described in sec 8.4.1.2.2 in H264
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* specification.
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*
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*******************************************************************************
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*/
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WORD32 ih264e_find_pskip_params(process_ctxt_t *ps_proc, WORD32 i4_reflist)
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{
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/* left mb motion vector */
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enc_pu_t *ps_left_mb_pu ;
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/* top mb motion vector */
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enc_pu_t *ps_top_mb_pu ;
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/* Skip mv */
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mv_t *ps_skip_mv = &ps_proc->ps_skip_mv[PRED_L0].s_mv;
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UNUSED(i4_reflist);
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ps_left_mb_pu = &ps_proc->s_left_mb_pu ;
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ps_top_mb_pu = ps_proc->ps_top_row_pu + ps_proc->i4_mb_x;
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if ((!ps_proc->ps_ngbr_avbl->u1_mb_a) ||
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(!ps_proc->ps_ngbr_avbl->u1_mb_b) ||
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(
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(ps_left_mb_pu->s_me_info[PRED_L0].i1_ref_idx == -1) &&
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(ps_left_mb_pu->s_me_info[PRED_L0].s_mv.i2_mvx == 0) &&
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(ps_left_mb_pu->s_me_info[PRED_L0].s_mv.i2_mvy == 0)
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) ||
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(
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(ps_top_mb_pu->s_me_info[PRED_L0].i1_ref_idx == -1) &&
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(ps_top_mb_pu->s_me_info[PRED_L0].s_mv.i2_mvx == 0) &&
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(ps_top_mb_pu->s_me_info[PRED_L0].s_mv.i2_mvy == 0)
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)
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)
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{
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ps_skip_mv->i2_mvx = 0;
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ps_skip_mv->i2_mvy = 0;
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}
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else
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{
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ps_skip_mv->i2_mvx = ps_proc->ps_pred_mv[PRED_L0].s_mv.i2_mvx;
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ps_skip_mv->i2_mvy = ps_proc->ps_pred_mv[PRED_L0].s_mv.i2_mvy;
|
|
}
|
|
|
|
if ( (ps_proc->ps_pu->s_me_info[PRED_L0].s_mv.i2_mvx == ps_skip_mv->i2_mvx)
|
|
&& (ps_proc->ps_pu->s_me_info[PRED_L0].s_mv.i2_mvy == ps_skip_mv->i2_mvy))
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
*******************************************************************************
|
|
*
|
|
* @brief The function computes parameters for a PSKIP MB
|
|
*
|
|
* @par Description:
|
|
* The function updates the skip motion vector and checks if the current
|
|
* MB can be a skip PSKIP mB or not
|
|
*
|
|
* @param[in] ps_proc
|
|
* Pointer to process context
|
|
*
|
|
* @param[in] u4_for_me
|
|
* Flag to dincate fucntion is called for ME or not
|
|
*
|
|
* @param[out] i4_ref_list
|
|
* Current active refernce list
|
|
*
|
|
* @returns Flag indicating if the current MB can be marked as skip
|
|
*
|
|
* @remarks The code implements the logic as described in sec 8.4.1.2.2 in H264
|
|
* specification.
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
WORD32 ih264e_find_pskip_params_me(process_ctxt_t *ps_proc, WORD32 i4_reflist)
|
|
{
|
|
/* left mb motion vector */
|
|
enc_pu_t *ps_left_mb_pu ;
|
|
|
|
/* top mb motion vector */
|
|
enc_pu_t *ps_top_mb_pu ;
|
|
|
|
/* Skip mv */
|
|
mv_t *ps_skip_mv = &ps_proc->ps_skip_mv[PRED_L0].s_mv;
|
|
|
|
UNUSED(i4_reflist);
|
|
|
|
ps_left_mb_pu = &ps_proc->s_left_mb_pu_ME;
|
|
ps_top_mb_pu = ps_proc->ps_top_row_pu_ME + ps_proc->i4_mb_x;
|
|
|
|
if ((!ps_proc->ps_ngbr_avbl->u1_mb_a) ||
|
|
(!ps_proc->ps_ngbr_avbl->u1_mb_b) ||
|
|
(
|
|
(ps_left_mb_pu->s_me_info[PRED_L0].i1_ref_idx == -1) &&
|
|
(ps_left_mb_pu->s_me_info[PRED_L0].s_mv.i2_mvx == 0) &&
|
|
(ps_left_mb_pu->s_me_info[PRED_L0].s_mv.i2_mvy == 0)
|
|
) ||
|
|
(
|
|
(ps_top_mb_pu->s_me_info[PRED_L0].i1_ref_idx == -1) &&
|
|
(ps_top_mb_pu->s_me_info[PRED_L0].s_mv.i2_mvx == 0) &&
|
|
(ps_top_mb_pu->s_me_info[PRED_L0].s_mv.i2_mvy == 0)
|
|
)
|
|
)
|
|
|
|
{
|
|
ps_skip_mv->i2_mvx = 0;
|
|
ps_skip_mv->i2_mvy = 0;
|
|
}
|
|
else
|
|
{
|
|
ps_skip_mv->i2_mvx = ps_proc->ps_pred_mv[PRED_L0].s_mv.i2_mvx;
|
|
ps_skip_mv->i2_mvy = ps_proc->ps_pred_mv[PRED_L0].s_mv.i2_mvy;
|
|
}
|
|
|
|
return PRED_L0;
|
|
}
|
|
|
|
|
|
/**
|
|
*******************************************************************************
|
|
*
|
|
* @brief motion vector predictor
|
|
*
|
|
* @par Description:
|
|
* The routine calculates the motion vector predictor for a given block,
|
|
* given the candidate MV predictors.
|
|
*
|
|
* @param[in] ps_left_mb_pu
|
|
* pointer to left mb motion vector info
|
|
*
|
|
* @param[in] ps_top_row_pu
|
|
* pointer to top & top right mb motion vector info
|
|
*
|
|
* @param[out] ps_pred_mv
|
|
* pointer to candidate predictors for the current block
|
|
*
|
|
* @returns The x & y components of the MV predictor.
|
|
*
|
|
* @remarks The code implements the logic as described in sec 8.4.1.3 in H264
|
|
* specification.
|
|
* Assumptions : 1. Assumes Single reference frame
|
|
* 2. Assumes Only partition of size 16x16
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
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)
|
|
{
|
|
|
|
/* Indicated the current ref */
|
|
WORD8 i1_ref_idx;
|
|
|
|
/* For pred L0 */
|
|
i1_ref_idx = -1;
|
|
{
|
|
/* temp var */
|
|
WORD32 pred_algo = 3, a, b, c;
|
|
|
|
/* If only one of the candidate blocks has a reference frame equal to
|
|
* the current block then use the same block as the final predictor */
|
|
a = (ps_left_mb_pu->s_me_info[i4_ref_list].i1_ref_idx == i1_ref_idx) ? 0 : -1;
|
|
b = (ps_top_row_pu[0].s_me_info[i4_ref_list].i1_ref_idx == i1_ref_idx) ? 0 : -1;
|
|
c = (ps_top_row_pu[1].s_me_info[i4_ref_list].i1_ref_idx == i1_ref_idx) ? 0 : -1;
|
|
|
|
if (a == 0 && b == -1 && c == -1)
|
|
pred_algo = 0; /* LEFT */
|
|
else if(a == -1 && b == 0 && c == -1)
|
|
pred_algo = 1; /* TOP */
|
|
else if(a == -1 && b == -1 && c == 0)
|
|
pred_algo = 2; /* TOP RIGHT */
|
|
|
|
switch (pred_algo)
|
|
{
|
|
case 0:
|
|
/* left */
|
|
ps_pred_mv->s_mv.i2_mvx = ps_left_mb_pu->s_me_info[i4_ref_list].s_mv.i2_mvx;
|
|
ps_pred_mv->s_mv.i2_mvy = ps_left_mb_pu->s_me_info[i4_ref_list].s_mv.i2_mvy;
|
|
break;
|
|
case 1:
|
|
/* top */
|
|
ps_pred_mv->s_mv.i2_mvx = ps_top_row_pu[0].s_me_info[i4_ref_list].s_mv.i2_mvx;
|
|
ps_pred_mv->s_mv.i2_mvy = ps_top_row_pu[0].s_me_info[i4_ref_list].s_mv.i2_mvy;
|
|
break;
|
|
case 2:
|
|
/* top right */
|
|
ps_pred_mv->s_mv.i2_mvx = ps_top_row_pu[1].s_me_info[i4_ref_list].s_mv.i2_mvx;
|
|
ps_pred_mv->s_mv.i2_mvy = ps_top_row_pu[1].s_me_info[i4_ref_list].s_mv.i2_mvy;
|
|
break;
|
|
case 3:
|
|
/* median */
|
|
MEDIAN(ps_left_mb_pu->s_me_info[i4_ref_list].s_mv.i2_mvx,
|
|
ps_top_row_pu[0].s_me_info[i4_ref_list].s_mv.i2_mvx,
|
|
ps_top_row_pu[1].s_me_info[i4_ref_list].s_mv.i2_mvx,
|
|
ps_pred_mv->s_mv.i2_mvx);
|
|
MEDIAN(ps_left_mb_pu->s_me_info[i4_ref_list].s_mv.i2_mvy,
|
|
ps_top_row_pu[0].s_me_info[i4_ref_list].s_mv.i2_mvy,
|
|
ps_top_row_pu[1].s_me_info[i4_ref_list].s_mv.i2_mvy,
|
|
ps_pred_mv->s_mv.i2_mvy);
|
|
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
*******************************************************************************
|
|
*
|
|
* @brief This function performs MV prediction
|
|
*
|
|
* @par Description:
|
|
*
|
|
* @param[in] ps_proc
|
|
* Process context corresponding to the job
|
|
*
|
|
* @returns none
|
|
*
|
|
* @remarks none
|
|
* This function will update the MB availability since intra inter decision
|
|
* should be done before the call
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
void ih264e_mv_pred(process_ctxt_t *ps_proc, WORD32 i4_slice_type)
|
|
{
|
|
|
|
/* left mb motion vector */
|
|
enc_pu_t *ps_left_mb_pu;
|
|
|
|
/* top left mb motion vector */
|
|
enc_pu_t *ps_top_left_mb_pu;
|
|
|
|
/* top row motion vector info */
|
|
enc_pu_t *ps_top_row_pu;
|
|
|
|
/* predicted motion vector */
|
|
enc_pu_mv_t *ps_pred_mv = ps_proc->ps_pred_mv;
|
|
|
|
/* zero mv */
|
|
mv_t zero_mv = { 0, 0 };
|
|
|
|
/* mb neighbor availability */
|
|
block_neighbors_t *ps_ngbr_avbl = ps_proc->ps_ngbr_avbl;
|
|
|
|
/* mb syntax elements of neighbors */
|
|
mb_info_t *ps_top_syn = ps_proc->ps_top_row_mb_syntax_ele + ps_proc->i4_mb_x;
|
|
mb_info_t *ps_top_left_syn;
|
|
UWORD32 u4_left_is_intra;
|
|
|
|
/* Temp var */
|
|
WORD32 i4_reflist, max_reflist, i4_cmpl_predmode;
|
|
|
|
ps_top_left_syn = &(ps_proc->s_top_left_mb_syntax_ele);
|
|
u4_left_is_intra = ps_proc->s_left_mb_syntax_ele.u2_is_intra;
|
|
ps_left_mb_pu = &ps_proc->s_left_mb_pu;
|
|
ps_top_left_mb_pu = &ps_proc->s_top_left_mb_pu;
|
|
ps_top_row_pu = (ps_proc->ps_top_row_pu + ps_proc->i4_mb_x);
|
|
|
|
/* Number of ref lists to process */
|
|
max_reflist = (i4_slice_type == PSLICE) ? 1 : 2;
|
|
|
|
for (i4_reflist = 0; i4_reflist < max_reflist; i4_reflist++)
|
|
{
|
|
i4_cmpl_predmode = (i4_reflist == 0) ? PRED_L1 : PRED_L0;
|
|
|
|
/* Before performing mv prediction prepare the ngbr information and
|
|
* reset motion vectors basing on their availability */
|
|
if (!ps_ngbr_avbl->u1_mb_a || (u4_left_is_intra == 1)
|
|
|| (ps_left_mb_pu->b2_pred_mode == i4_cmpl_predmode))
|
|
{
|
|
/* left mv */
|
|
ps_left_mb_pu->s_me_info[i4_reflist].i1_ref_idx = 0;
|
|
ps_left_mb_pu->s_me_info[i4_reflist].s_mv = zero_mv;
|
|
}
|
|
if (!ps_ngbr_avbl->u1_mb_b || ps_top_syn->u2_is_intra
|
|
|| (ps_top_row_pu[0].b2_pred_mode == i4_cmpl_predmode))
|
|
{
|
|
/* top mv */
|
|
ps_top_row_pu[0].s_me_info[i4_reflist].i1_ref_idx = 0;
|
|
ps_top_row_pu[0].s_me_info[i4_reflist].s_mv = zero_mv;
|
|
}
|
|
|
|
if (!ps_ngbr_avbl->u1_mb_c)
|
|
{
|
|
/* top right mv - When top right partition is not available for
|
|
* prediction if top left is available use it for prediction else
|
|
* set the mv information to -1 and (0, 0)
|
|
* */
|
|
if (!ps_ngbr_avbl->u1_mb_d || ps_top_left_syn->u2_is_intra
|
|
|| (ps_top_left_mb_pu->b2_pred_mode == i4_cmpl_predmode))
|
|
{
|
|
ps_top_row_pu[1].s_me_info[i4_reflist].i1_ref_idx = 0;
|
|
ps_top_row_pu[1].s_me_info[i4_reflist].s_mv = zero_mv;
|
|
}
|
|
else
|
|
{
|
|
ps_top_row_pu[1].s_me_info[i4_reflist].i1_ref_idx = ps_top_left_mb_pu->s_me_info[i4_reflist].i1_ref_idx;
|
|
ps_top_row_pu[1].s_me_info[i4_reflist].s_mv = ps_top_left_mb_pu->s_me_info[i4_reflist].s_mv;
|
|
}
|
|
}
|
|
else if(ps_top_syn[1].u2_is_intra
|
|
|| (ps_top_row_pu[1].b2_pred_mode == i4_cmpl_predmode))
|
|
{
|
|
ps_top_row_pu[1].s_me_info[i4_reflist].i1_ref_idx = 0;
|
|
ps_top_row_pu[1].s_me_info[i4_reflist].s_mv = zero_mv;
|
|
}
|
|
|
|
ih264e_get_mv_predictor(ps_left_mb_pu, ps_top_row_pu, &ps_pred_mv[i4_reflist], i4_reflist);
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
*******************************************************************************
|
|
*
|
|
* @brief This function approximates Pred. MV
|
|
*
|
|
* @par Description:
|
|
*
|
|
* @param[in] ps_proc
|
|
* Process context corresponding to the job
|
|
*
|
|
* @returns none
|
|
*
|
|
* @remarks none
|
|
* Motion estimation happens at nmb level. For cost calculations, mv is appro
|
|
* ximated using this function
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
void ih264e_mv_pred_me(process_ctxt_t *ps_proc, WORD32 i4_ref_list)
|
|
{
|
|
/* left mb motion vector */
|
|
enc_pu_t *ps_left_mb_pu ;
|
|
|
|
/* top left mb motion vector */
|
|
enc_pu_t *ps_top_left_mb_pu ;
|
|
|
|
/* top row motion vector info */
|
|
enc_pu_t *ps_top_row_pu;
|
|
|
|
enc_pu_t s_top_row_pu[2];
|
|
|
|
/* predicted motion vector */
|
|
enc_pu_mv_t *ps_pred_mv = ps_proc->ps_pred_mv;
|
|
|
|
/* zero mv */
|
|
mv_t zero_mv = {0, 0};
|
|
|
|
/* Complementary pred mode */
|
|
WORD32 i4_cmpl_predmode = (i4_ref_list == 0) ? PRED_L1 : PRED_L0;
|
|
|
|
/* mb neighbor availability */
|
|
block_neighbors_t *ps_ngbr_avbl = ps_proc->ps_ngbr_avbl;
|
|
|
|
ps_left_mb_pu = &ps_proc->s_left_mb_pu_ME;
|
|
ps_top_left_mb_pu = &ps_proc->s_top_left_mb_pu_ME;
|
|
ps_top_row_pu = (ps_proc->ps_top_row_pu_ME + ps_proc->i4_mb_x);
|
|
|
|
s_top_row_pu[0] = ps_top_row_pu[0];
|
|
s_top_row_pu[1] = ps_top_row_pu[1];
|
|
|
|
/*
|
|
* Before performing mv prediction prepare the ngbr information and
|
|
* reset motion vectors basing on their availability
|
|
*/
|
|
|
|
if (!ps_ngbr_avbl->u1_mb_a || (ps_left_mb_pu->b2_pred_mode == i4_cmpl_predmode))
|
|
{
|
|
/* left mv */
|
|
ps_left_mb_pu->s_me_info[i4_ref_list].i1_ref_idx = 0;
|
|
ps_left_mb_pu->s_me_info[i4_ref_list].s_mv = zero_mv;
|
|
}
|
|
if (!ps_ngbr_avbl->u1_mb_b || (s_top_row_pu[0].b2_pred_mode == i4_cmpl_predmode))
|
|
{
|
|
/* top mv */
|
|
s_top_row_pu[0].s_me_info[i4_ref_list].i1_ref_idx = 0;
|
|
s_top_row_pu[0].s_me_info[i4_ref_list].s_mv = zero_mv;
|
|
|
|
}
|
|
if (!ps_ngbr_avbl->u1_mb_c)
|
|
{
|
|
/* top right mv - When top right partition is not available for
|
|
* prediction if top left is available use it for prediction else
|
|
* set the mv information to -1 and (0, 0)
|
|
* */
|
|
if (!ps_ngbr_avbl->u1_mb_d || (ps_top_left_mb_pu->b2_pred_mode == i4_cmpl_predmode))
|
|
{
|
|
s_top_row_pu[1].s_me_info[i4_ref_list].i1_ref_idx = 0;
|
|
s_top_row_pu[1].s_me_info[i4_ref_list].s_mv = zero_mv;
|
|
|
|
s_top_row_pu[1].s_me_info[i4_ref_list].i1_ref_idx = 0;
|
|
s_top_row_pu[1].s_me_info[i4_ref_list].s_mv = zero_mv;
|
|
}
|
|
else
|
|
{
|
|
s_top_row_pu[1].s_me_info[i4_ref_list].i1_ref_idx = ps_top_left_mb_pu->s_me_info[0].i1_ref_idx;
|
|
s_top_row_pu[1].s_me_info[i4_ref_list].s_mv = ps_top_left_mb_pu->s_me_info[0].s_mv;
|
|
}
|
|
}
|
|
else if (ps_top_row_pu[1].b2_pred_mode == i4_cmpl_predmode)
|
|
{
|
|
ps_top_row_pu[1].s_me_info[i4_ref_list].i1_ref_idx = 0;
|
|
ps_top_row_pu[1].s_me_info[i4_ref_list].s_mv = zero_mv;
|
|
}
|
|
|
|
ih264e_get_mv_predictor(ps_left_mb_pu, &(s_top_row_pu[0]),
|
|
&ps_pred_mv[i4_ref_list], i4_ref_list);
|
|
}
|
|
|
|
/**
|
|
*******************************************************************************
|
|
*
|
|
* @brief This function initializes me ctxt
|
|
*
|
|
* @par Description:
|
|
* Before dispatching the current job to me thread, the me context associated
|
|
* with the job is initialized.
|
|
*
|
|
* @param[in] ps_proc
|
|
* Process context corresponding to the job
|
|
*
|
|
* @returns none
|
|
*
|
|
* @remarks none
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
void ih264e_init_me(process_ctxt_t *ps_proc)
|
|
{
|
|
/* me ctxt */
|
|
me_ctxt_t *ps_me_ctxt = &ps_proc->s_me_ctxt;
|
|
|
|
/* codec context */
|
|
codec_t *ps_codec = ps_proc->ps_codec;
|
|
|
|
ps_me_ctxt->i4_skip_bias[BSLICE] = SKIP_BIAS_B;
|
|
|
|
if (ps_codec->s_cfg.u4_num_bframes == 0)
|
|
{
|
|
ps_me_ctxt->i4_skip_bias[PSLICE] = 4 * SKIP_BIAS_P;
|
|
}
|
|
else
|
|
{
|
|
ps_me_ctxt->i4_skip_bias[PSLICE] = SKIP_BIAS_P;
|
|
}
|
|
|
|
/* src ptr */
|
|
ps_me_ctxt->pu1_src_buf_luma = ps_proc->pu1_src_buf_luma;
|
|
/* src stride */
|
|
ps_me_ctxt->i4_src_strd = ps_proc->i4_src_strd;
|
|
|
|
/* ref ptrs and corresponding lagrange params */
|
|
ps_me_ctxt->apu1_ref_buf_luma[0] = ps_proc->apu1_ref_buf_luma[0];
|
|
ps_me_ctxt->apu1_ref_buf_luma[1] = ps_proc->apu1_ref_buf_luma[1];
|
|
|
|
ps_me_ctxt->u4_lambda_motion = gu1_qp0[ps_me_ctxt->u1_mb_qp];
|
|
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
*******************************************************************************
|
|
*
|
|
* @brief This function performs motion estimation for the current mb using
|
|
* single reference list
|
|
*
|
|
* @par Description:
|
|
* The current mb is compared with a list of mb's in the reference frame for
|
|
* least cost. The mb that offers least cost is chosen as predicted mb and the
|
|
* displacement of the predicted mb from index location of the current mb is
|
|
* signaled as mv. The list of the mb's that are chosen in the reference frame
|
|
* are dependent on the speed of the ME configured.
|
|
*
|
|
* @param[in] ps_proc
|
|
* Process context corresponding to the job
|
|
*
|
|
* @returns motion vector of the pred mb, sad, cost.
|
|
*
|
|
* @remarks none
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
void ih264e_compute_me_single_reflist(process_ctxt_t *ps_proc)
|
|
{
|
|
/* me ctxt */
|
|
me_ctxt_t *ps_me_ctxt = &ps_proc->s_me_ctxt;
|
|
|
|
/* codec context */
|
|
codec_t *ps_codec = ps_proc->ps_codec;
|
|
|
|
/* recon stride */
|
|
WORD32 i4_rec_strd = ps_proc->i4_rec_strd;
|
|
|
|
/* source buffer for halp pel generation functions */
|
|
UWORD8 *pu1_hpel_src;
|
|
|
|
/* quantization parameters */
|
|
quant_params_t *ps_qp_params = ps_proc->ps_qp_params[0];
|
|
|
|
/* Mb part ctxts for SKIP */
|
|
mb_part_ctxt s_skip_mbpart;
|
|
|
|
/* Sad therholds */
|
|
ps_me_ctxt->pu2_sad_thrsh = ps_qp_params->pu2_sad_thrsh;
|
|
|
|
{
|
|
WORD32 rows_above, rows_below, columns_left, columns_right;
|
|
|
|
/* During evaluation for motion vectors do not search through padded regions */
|
|
/* Obtain number of rows and columns that are effective for computing for me evaluation */
|
|
rows_above = MB_SIZE + ps_proc->i4_mb_y * MB_SIZE;
|
|
rows_below = (ps_proc->i4_ht_mbs - ps_proc->i4_mb_y) * MB_SIZE;
|
|
columns_left = MB_SIZE + ps_proc->i4_mb_x * MB_SIZE;
|
|
columns_right = (ps_proc->i4_wd_mbs - ps_proc->i4_mb_x) * MB_SIZE;
|
|
|
|
/* init srch range */
|
|
/* NOTE : For now, lets limit the search range by DEFAULT_MAX_SRCH_RANGE_X / 2
|
|
* on all sides.
|
|
*/
|
|
ps_me_ctxt->i4_srch_range_w = -MIN(columns_left, DEFAULT_MAX_SRCH_RANGE_X >> 1);
|
|
ps_me_ctxt->i4_srch_range_e = MIN(columns_right, DEFAULT_MAX_SRCH_RANGE_X >> 1);
|
|
ps_me_ctxt->i4_srch_range_n = -MIN(rows_above, DEFAULT_MAX_SRCH_RANGE_Y >> 1);
|
|
ps_me_ctxt->i4_srch_range_s = MIN(rows_below, DEFAULT_MAX_SRCH_RANGE_Y >> 1);
|
|
|
|
/* this is to facilitate fast sub pel computation with minimal loads */
|
|
ps_me_ctxt->i4_srch_range_w += 1;
|
|
ps_me_ctxt->i4_srch_range_e -= 1;
|
|
ps_me_ctxt->i4_srch_range_n += 1;
|
|
ps_me_ctxt->i4_srch_range_s -= 1;
|
|
}
|
|
|
|
/* Compute ME and store the MVs */
|
|
|
|
/***********************************************************************
|
|
* Compute ME for list L0
|
|
***********************************************************************/
|
|
|
|
/* Init SATQD for the current list */
|
|
ps_me_ctxt->u4_min_sad_reached = 0;
|
|
ps_me_ctxt->i4_min_sad = ps_proc->ps_cur_mb->u4_min_sad;
|
|
|
|
/* Get the seed motion vector candidates */
|
|
ih264e_get_search_candidates(ps_proc, ps_me_ctxt, PRED_L0);
|
|
|
|
/* ****************************************************************
|
|
*Evaluate the SKIP for current list
|
|
* ****************************************************************/
|
|
s_skip_mbpart.s_mv_curr.i2_mvx = 0;
|
|
s_skip_mbpart.s_mv_curr.i2_mvy = 0;
|
|
s_skip_mbpart.i4_mb_cost = INT_MAX;
|
|
s_skip_mbpart.i4_mb_distortion = INT_MAX;
|
|
|
|
ime_compute_skip_cost( ps_me_ctxt,
|
|
(ime_mv_t *)(&ps_proc->ps_skip_mv[PRED_L0].s_mv),
|
|
&s_skip_mbpart,
|
|
ps_proc->ps_codec->s_cfg.u4_enable_satqd,
|
|
PRED_L0,
|
|
0 /* Not a Bslice */ );
|
|
|
|
s_skip_mbpart.s_mv_curr.i2_mvx <<= 2;
|
|
s_skip_mbpart.s_mv_curr.i2_mvy <<= 2;
|
|
|
|
/******************************************************************
|
|
* Evaluate ME For current list
|
|
*****************************************************************/
|
|
ps_me_ctxt->as_mb_part[PRED_L0].s_mv_curr.i2_mvx = 0;
|
|
ps_me_ctxt->as_mb_part[PRED_L0].s_mv_curr.i2_mvy = 0;
|
|
ps_me_ctxt->as_mb_part[PRED_L0].i4_mb_cost = INT_MAX;
|
|
ps_me_ctxt->as_mb_part[PRED_L0].i4_mb_distortion = INT_MAX;
|
|
|
|
/* Init Hpel */
|
|
ps_me_ctxt->as_mb_part[PRED_L0].pu1_best_hpel_buf = NULL;
|
|
|
|
/* In case we found out the minimum SAD, exit the ME eval */
|
|
if (!ps_me_ctxt->u4_min_sad_reached)
|
|
{
|
|
/* Evaluate search candidates for initial mv pt */
|
|
ime_evaluate_init_srchposn_16x16(ps_me_ctxt, PRED_L0);
|
|
|
|
/********************************************************************/
|
|
/* full pel motion estimation */
|
|
/********************************************************************/
|
|
ime_full_pel_motion_estimation_16x16(ps_me_ctxt, PRED_L0);
|
|
|
|
/* Scale the MV to qpel resolution */
|
|
ps_me_ctxt->as_mb_part[PRED_L0].s_mv_curr.i2_mvx <<= 2;
|
|
ps_me_ctxt->as_mb_part[PRED_L0].s_mv_curr.i2_mvy <<= 2;
|
|
|
|
if (ps_me_ctxt->u4_enable_hpel)
|
|
{
|
|
/* moving src pointer to the converged motion vector location*/
|
|
pu1_hpel_src = ps_me_ctxt->apu1_ref_buf_luma[PRED_L0]
|
|
+ (ps_me_ctxt->as_mb_part[PRED_L0].s_mv_curr.i2_mvx >> 2)
|
|
+ (ps_me_ctxt->as_mb_part[PRED_L0].s_mv_curr.i2_mvy >> 2)* i4_rec_strd;
|
|
|
|
ps_me_ctxt->apu1_subpel_buffs[0] = ps_proc->apu1_subpel_buffs[0];
|
|
ps_me_ctxt->apu1_subpel_buffs[1] = ps_proc->apu1_subpel_buffs[1];
|
|
ps_me_ctxt->apu1_subpel_buffs[2] = ps_proc->apu1_subpel_buffs[2];
|
|
|
|
ps_me_ctxt->u4_subpel_buf_strd = HP_BUFF_WD;
|
|
|
|
/* half pel search is done for both sides of full pel,
|
|
* hence half_x of width x height = 17x16 is created
|
|
* starting from left half_x of converged full pel */
|
|
pu1_hpel_src -= 1;
|
|
|
|
/* computing half_x */
|
|
ps_codec->pf_ih264e_sixtapfilter_horz(pu1_hpel_src,
|
|
ps_me_ctxt->apu1_subpel_buffs[0],
|
|
i4_rec_strd,
|
|
ps_me_ctxt->u4_subpel_buf_strd);
|
|
|
|
/*
|
|
* Halfpel search is done for both sides of full pel,
|
|
* hence half_y of width x height = 16x17 is created
|
|
* starting from top half_y of converged full pel
|
|
* for half_xy top_left is required
|
|
* hence it starts from pu1_hpel_src = full_pel_converged_point - i4_rec_strd - 1
|
|
*/
|
|
pu1_hpel_src -= i4_rec_strd;
|
|
|
|
/* computing half_y , and half_xy*/
|
|
ps_codec->pf_ih264e_sixtap_filter_2dvh_vert(
|
|
pu1_hpel_src, ps_me_ctxt->apu1_subpel_buffs[1],
|
|
ps_me_ctxt->apu1_subpel_buffs[2], i4_rec_strd,
|
|
ps_me_ctxt->u4_subpel_buf_strd, ps_proc->ai16_pred1 + 3,
|
|
ps_me_ctxt->u4_subpel_buf_strd);
|
|
|
|
ime_sub_pel_motion_estimation_16x16(ps_me_ctxt, PRED_L0);
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* If a particular skiip Mv is giving better sad, copy to the corresponding
|
|
* MBPART
|
|
* In B slices this loop should go only to PREDL1: If we found min sad
|
|
* we will go to the skip ref list only
|
|
* Have to find a way to make it without too much change or new vars
|
|
**********************************************************************/
|
|
if (s_skip_mbpart.i4_mb_cost < ps_me_ctxt->as_mb_part[PRED_L0].i4_mb_cost)
|
|
{
|
|
ps_me_ctxt->as_mb_part[PRED_L0].i4_mb_cost = s_skip_mbpart.i4_mb_cost;
|
|
ps_me_ctxt->as_mb_part[PRED_L0].i4_mb_distortion = s_skip_mbpart.i4_mb_distortion;
|
|
ps_me_ctxt->as_mb_part[PRED_L0].s_mv_curr = s_skip_mbpart.s_mv_curr;
|
|
}
|
|
else if (ps_me_ctxt->as_mb_part[PRED_L0].pu1_best_hpel_buf)
|
|
{
|
|
/* Now we have to copy the buffers */
|
|
ps_codec->pf_inter_pred_luma_copy(
|
|
ps_me_ctxt->as_mb_part[PRED_L0].pu1_best_hpel_buf,
|
|
ps_proc->pu1_best_subpel_buf,
|
|
ps_me_ctxt->u4_subpel_buf_strd,
|
|
ps_proc->u4_bst_spel_buf_strd, MB_SIZE, MB_SIZE,
|
|
NULL, 0);
|
|
}
|
|
|
|
/**********************************************************************
|
|
* Now get the minimum of MB part sads by searching over all ref lists
|
|
**********************************************************************/
|
|
ps_proc->ps_pu->s_me_info[PRED_L0].s_mv.i2_mvx = ps_me_ctxt->as_mb_part[PRED_L0].s_mv_curr.i2_mvx;
|
|
ps_proc->ps_pu->s_me_info[PRED_L0].s_mv.i2_mvy = ps_me_ctxt->as_mb_part[PRED_L0].s_mv_curr.i2_mvy;
|
|
ps_proc->ps_cur_mb->i4_mb_cost = ps_me_ctxt->as_mb_part[PRED_L0].i4_mb_cost;
|
|
ps_proc->ps_cur_mb->i4_mb_distortion = ps_me_ctxt->as_mb_part[PRED_L0].i4_mb_distortion;
|
|
ps_proc->ps_cur_mb->u4_mb_type = P16x16;
|
|
ps_proc->ps_pu->b2_pred_mode = PRED_L0 ;
|
|
|
|
/* Mark the reflists */
|
|
ps_proc->ps_pu->s_me_info[0].i1_ref_idx = -1;
|
|
ps_proc->ps_pu->s_me_info[1].i1_ref_idx = 0;
|
|
|
|
/* number of partitions */
|
|
ps_proc->u4_num_sub_partitions = 1;
|
|
*(ps_proc->pu4_mb_pu_cnt) = 1;
|
|
|
|
/* position in-terms of PU */
|
|
ps_proc->ps_pu->b4_pos_x = 0;
|
|
ps_proc->ps_pu->b4_pos_y = 0;
|
|
|
|
/* PU size */
|
|
ps_proc->ps_pu->b4_wd = 3;
|
|
ps_proc->ps_pu->b4_ht = 3;
|
|
|
|
/* Update min sad conditions */
|
|
if (ps_me_ctxt->u4_min_sad_reached == 1)
|
|
{
|
|
ps_proc->ps_cur_mb->u4_min_sad_reached = 1;
|
|
ps_proc->ps_cur_mb->u4_min_sad = ps_me_ctxt->i4_min_sad;
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
*******************************************************************************
|
|
*
|
|
* @brief This function performs motion estimation for the current NMB
|
|
*
|
|
* @par Description:
|
|
* Intializes input and output pointers required by the function ih264e_compute_me
|
|
* and calls the function ih264e_compute_me in a loop to process NMBs.
|
|
*
|
|
* @param[in] ps_proc
|
|
* Process context corresponding to the job
|
|
*
|
|
* @returns
|
|
*
|
|
* @remarks none
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
void ih264e_compute_me_nmb(process_ctxt_t *ps_proc, UWORD32 u4_nmb_count)
|
|
{
|
|
/* pic pu */
|
|
enc_pu_t *ps_pu_begin = ps_proc->ps_pu;
|
|
|
|
/* ME map */
|
|
UWORD8 *pu1_me_map = ps_proc->pu1_me_map + (ps_proc->i4_mb_y * ps_proc->i4_wd_mbs);
|
|
|
|
/* temp var */
|
|
UWORD32 u4_i;
|
|
|
|
ps_proc->s_me_ctxt.u4_left_is_intra = ps_proc->s_left_mb_syntax_ele.u2_is_intra;
|
|
ps_proc->s_me_ctxt.u4_left_is_skip = (ps_proc->s_left_mb_syntax_ele.u2_mb_type == PSKIP);
|
|
|
|
for (u4_i = 0; u4_i < u4_nmb_count; u4_i++)
|
|
{
|
|
/* Wait for ME map */
|
|
if (ps_proc->i4_mb_y > 0)
|
|
{
|
|
/* Wait for top right ME to be done */
|
|
UWORD8 *pu1_me_map_tp_rw = ps_proc->pu1_me_map + (ps_proc->i4_mb_y - 1) * ps_proc->i4_wd_mbs;
|
|
|
|
while (1)
|
|
{
|
|
volatile UWORD8 *pu1_buf;
|
|
WORD32 idx = ps_proc->i4_mb_x + u4_i + 1;
|
|
|
|
idx = MIN(idx, (ps_proc->i4_wd_mbs - 1));
|
|
pu1_buf = pu1_me_map_tp_rw + idx;
|
|
if(*pu1_buf)
|
|
break;
|
|
ithread_yield();
|
|
}
|
|
}
|
|
|
|
ps_proc->ps_skip_mv = &(ps_proc->ps_nmb_info[u4_i].as_skip_mv[0]);
|
|
ps_proc->ps_ngbr_avbl = &(ps_proc->ps_nmb_info[u4_i].s_ngbr_avbl);
|
|
ps_proc->ps_pred_mv = &(ps_proc->ps_nmb_info[u4_i].as_pred_mv[0]);
|
|
|
|
ps_proc->ps_cur_mb = &(ps_proc->ps_nmb_info[u4_i]);
|
|
|
|
ps_proc->ps_cur_mb->u4_min_sad = ps_proc->u4_min_sad;
|
|
ps_proc->ps_cur_mb->u4_min_sad_reached = 0;
|
|
|
|
ps_proc->ps_cur_mb->i4_mb_cost = INT_MAX;
|
|
ps_proc->ps_cur_mb->i4_mb_distortion = SHRT_MAX;
|
|
|
|
/* Set the best subpel buf to the correct mb so that the buffer can be copied */
|
|
ps_proc->pu1_best_subpel_buf = ps_proc->ps_nmb_info[u4_i].pu1_best_sub_pel_buf;
|
|
ps_proc->u4_bst_spel_buf_strd = ps_proc->ps_nmb_info[u4_i].u4_bst_spel_buf_strd;
|
|
|
|
/* Set the min sad conditions */
|
|
ps_proc->ps_cur_mb->u4_min_sad = ps_proc->ps_codec->u4_min_sad;
|
|
ps_proc->ps_cur_mb->u4_min_sad_reached = 0;
|
|
|
|
/* Derive neighbor availability for the current macroblock */
|
|
ih264e_derive_nghbr_avbl_of_mbs(ps_proc);
|
|
|
|
/* init me */
|
|
ih264e_init_me(ps_proc);
|
|
|
|
/* Compute ME according to slice type */
|
|
ps_proc->ps_codec->apf_compute_me[ps_proc->i4_slice_type](ps_proc);
|
|
|
|
/* update top and left structs */
|
|
{
|
|
mb_info_t *ps_top_syn = ps_proc->ps_top_row_mb_syntax_ele + ps_proc->i4_mb_x;
|
|
mb_info_t *ps_top_left_syn = &(ps_proc->s_top_left_mb_syntax_ME);
|
|
enc_pu_t *ps_left_mb_pu = &ps_proc->s_left_mb_pu_ME;
|
|
enc_pu_t *ps_top_left_mb_pu = &ps_proc->s_top_left_mb_pu_ME;
|
|
enc_pu_t *ps_top_mv = ps_proc->ps_top_row_pu_ME + ps_proc->i4_mb_x;
|
|
|
|
*ps_top_left_syn = *ps_top_syn;
|
|
|
|
*ps_top_left_mb_pu = *ps_top_mv;
|
|
*ps_left_mb_pu = *ps_proc->ps_pu;
|
|
}
|
|
|
|
ps_proc->ps_pu += *ps_proc->pu4_mb_pu_cnt;
|
|
|
|
/* Copy the min sad reached info */
|
|
ps_proc->ps_nmb_info[u4_i].u4_min_sad_reached = ps_proc->ps_cur_mb->u4_min_sad_reached;
|
|
ps_proc->ps_nmb_info[u4_i].u4_min_sad = ps_proc->ps_cur_mb->u4_min_sad;
|
|
|
|
/*
|
|
* To make sure that the MV map is properly sync to the
|
|
* cache we need to do a DDB
|
|
*/
|
|
{
|
|
DATA_SYNC();
|
|
|
|
pu1_me_map[ps_proc->i4_mb_x] = 1;
|
|
}
|
|
ps_proc->i4_mb_x++;
|
|
|
|
ps_proc->s_me_ctxt.u4_left_is_intra = 0;
|
|
ps_proc->s_me_ctxt.u4_left_is_skip = (ps_proc->ps_cur_mb->u4_mb_type == PSKIP);
|
|
|
|
/* update buffers pointers */
|
|
ps_proc->pu1_src_buf_luma += MB_SIZE;
|
|
ps_proc->pu1_rec_buf_luma += MB_SIZE;
|
|
ps_proc->apu1_ref_buf_luma[0] += MB_SIZE;
|
|
ps_proc->apu1_ref_buf_luma[1] += MB_SIZE;
|
|
|
|
/*
|
|
* Note: Although chroma mb size is 8, as the chroma buffers are interleaved,
|
|
* the stride per MB is MB_SIZE
|
|
*/
|
|
ps_proc->pu1_src_buf_chroma += MB_SIZE;
|
|
ps_proc->pu1_rec_buf_chroma += MB_SIZE;
|
|
ps_proc->apu1_ref_buf_chroma[0] += MB_SIZE;
|
|
ps_proc->apu1_ref_buf_chroma[1] += MB_SIZE;
|
|
|
|
|
|
ps_proc->pu4_mb_pu_cnt += 1;
|
|
}
|
|
|
|
|
|
ps_proc->ps_pu = ps_pu_begin;
|
|
ps_proc->i4_mb_x = ps_proc->i4_mb_x - u4_nmb_count;
|
|
|
|
/* update buffers pointers */
|
|
ps_proc->pu1_src_buf_luma -= MB_SIZE * u4_nmb_count;
|
|
ps_proc->pu1_rec_buf_luma -= MB_SIZE * u4_nmb_count;
|
|
ps_proc->apu1_ref_buf_luma[0] -= MB_SIZE * u4_nmb_count;
|
|
ps_proc->apu1_ref_buf_luma[1] -= MB_SIZE * u4_nmb_count;
|
|
|
|
/*
|
|
* Note: Although chroma mb size is 8, as the chroma buffers are interleaved,
|
|
* the stride per MB is MB_SIZE
|
|
*/
|
|
ps_proc->pu1_src_buf_chroma -= MB_SIZE * u4_nmb_count;
|
|
ps_proc->pu1_rec_buf_chroma -= MB_SIZE * u4_nmb_count;
|
|
ps_proc->apu1_ref_buf_chroma[0] -= MB_SIZE * u4_nmb_count;
|
|
ps_proc->apu1_ref_buf_chroma[1] -= MB_SIZE * u4_nmb_count;
|
|
|
|
|
|
ps_proc->pu4_mb_pu_cnt -= u4_nmb_count;
|
|
}
|
|
|
|
|
|
/**
|
|
*******************************************************************************
|
|
*
|
|
* @brief The function computes parameters for a BSKIP MB
|
|
*
|
|
* @par Description:
|
|
* The function updates the skip motion vector for B Mb, check if the Mb can be
|
|
* marked as skip and returns it
|
|
*
|
|
* @param[in] ps_proc
|
|
* Pointer to process context
|
|
*
|
|
* @param[in] u4_for_me
|
|
* Dummy
|
|
*
|
|
* @param[in] i4_reflist
|
|
* Dummy
|
|
*
|
|
* @returns Flag indicating if the current Mb can be skip or not
|
|
*
|
|
* @remarks
|
|
* The code implements the logic as described in sec 8.4.1.2.2
|
|
* It also computes co-located MB parmas according to sec 8.4.1.2.1
|
|
*
|
|
* Need to add condition for this fucntion to be used in ME
|
|
*
|
|
*******************************************************************************/
|
|
WORD32 ih264e_find_bskip_params_me(process_ctxt_t *ps_proc, WORD32 i4_reflist)
|
|
{
|
|
/* Colzero for co-located MB */
|
|
WORD32 i4_colzeroflag;
|
|
|
|
/* motion vectors for neighbouring MBs */
|
|
enc_pu_t *ps_a_pu, *ps_c_pu, *ps_b_pu;
|
|
|
|
/* Variables to check if a particular mB is available */
|
|
WORD32 i4_a, i4_b, i4_c, i4_c_avail;
|
|
|
|
/* Mode availability, init to no modes available */
|
|
WORD32 i4_mode_avail;
|
|
|
|
/* mb neighbor availability */
|
|
block_neighbors_t *ps_ngbr_avbl = ps_proc->ps_ngbr_avbl;
|
|
|
|
/* Temp var */
|
|
WORD32 i, i4_cmpl_mode, i4_skip_type = -1;
|
|
|
|
/*
|
|
* Colocated motion vector
|
|
*/
|
|
mv_t s_mvcol;
|
|
|
|
/*
|
|
* Colocated picture idx
|
|
*/
|
|
WORD32 i4_refidxcol;
|
|
|
|
UNUSED(i4_reflist);
|
|
|
|
/**************************************************************************
|
|
*Find co-located MB parameters
|
|
* See sec 8.4.1.2.1 for reference
|
|
**************************************************************************/
|
|
{
|
|
/*
|
|
* Find the co-located Mb and update the skip and pred appropriately
|
|
* 1) Default colpic is forward ref : Table 8-6
|
|
* 2) Default mb col is current MB : Table 8-8
|
|
*/
|
|
|
|
if (ps_proc->ps_colpu->b1_intra_flag)
|
|
{
|
|
s_mvcol.i2_mvx = 0;
|
|
s_mvcol.i2_mvy = 0;
|
|
i4_refidxcol = -1;
|
|
}
|
|
else
|
|
{
|
|
if (ps_proc->ps_colpu->b2_pred_mode != PRED_L1)
|
|
{
|
|
s_mvcol = ps_proc->ps_colpu->s_me_info[PRED_L0].s_mv;
|
|
i4_refidxcol = 0;
|
|
}
|
|
else // if(ps_proc->ps_colpu->b2_pred_mode != PRED_L0)
|
|
{
|
|
s_mvcol = ps_proc->ps_colpu->s_me_info[PRED_L1].s_mv;
|
|
i4_refidxcol = 0;
|
|
}
|
|
}
|
|
|
|
/* RefPicList1[ 0 ] is marked as "used for short-term reference", as default */
|
|
i4_colzeroflag = (!i4_refidxcol && (ABS(s_mvcol.i2_mvx) <= 1)
|
|
&& (ABS(s_mvcol.i2_mvy) <= 1));
|
|
|
|
}
|
|
|
|
/***************************************************************************
|
|
* Evaluating skip params : Spatial Skip
|
|
**************************************************************************/
|
|
{
|
|
/* Get the neighbouring MBS according to Section 8.4.1.2.2 */
|
|
ps_a_pu = &ps_proc->s_left_mb_pu_ME;
|
|
ps_b_pu = (ps_proc->ps_top_row_pu_ME + ps_proc->i4_mb_x);
|
|
|
|
i4_c_avail = 0;
|
|
if (ps_ngbr_avbl->u1_mb_c)
|
|
{
|
|
ps_c_pu = &((ps_proc->ps_top_row_pu_ME + ps_proc->i4_mb_x)[1]);
|
|
i4_c_avail = 1;
|
|
}
|
|
else
|
|
{
|
|
ps_c_pu = &ps_proc->s_top_left_mb_pu_ME;
|
|
i4_c_avail = ps_ngbr_avbl->u1_mb_d;
|
|
}
|
|
|
|
i4_a = ps_ngbr_avbl->u1_mb_a;
|
|
i4_b = ps_ngbr_avbl->u1_mb_b;
|
|
i4_c = i4_c_avail;
|
|
|
|
/* Init to no mode avail */
|
|
i4_mode_avail = 0;
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
i4_cmpl_mode = (i == 0) ? PRED_L1 : PRED_L0;
|
|
|
|
i4_mode_avail |= (i4_a && (ps_a_pu->b2_pred_mode != i4_cmpl_mode) && (ps_a_pu->s_me_info[i].i1_ref_idx != 0))<<i;
|
|
i4_mode_avail |= (i4_b && (ps_b_pu->b2_pred_mode != i4_cmpl_mode) && (ps_b_pu->s_me_info[i].i1_ref_idx != 0))<<i;
|
|
i4_mode_avail |= (i4_c && (ps_c_pu->b2_pred_mode != i4_cmpl_mode) && (ps_c_pu->s_me_info[i].i1_ref_idx != 0))<<i;
|
|
}
|
|
|
|
if (i4_mode_avail == 0x3 || i4_mode_avail == 0x0)
|
|
{
|
|
i4_skip_type= PRED_BI;
|
|
}
|
|
else if(i4_mode_avail == 0x1)
|
|
{
|
|
i4_skip_type = PRED_L0;
|
|
}
|
|
else if(i4_mode_avail == 0x2)
|
|
{
|
|
i4_skip_type = PRED_L1;
|
|
}
|
|
|
|
/* Update skip MV for L0 */
|
|
if ((i4_mode_avail & 0x1) && (!i4_colzeroflag))
|
|
{
|
|
ps_proc->ps_skip_mv[0].s_mv.i2_mvx = ps_proc->ps_pred_mv[0].s_mv.i2_mvx;
|
|
ps_proc->ps_skip_mv[0].s_mv.i2_mvy = ps_proc->ps_pred_mv[0].s_mv.i2_mvy;
|
|
}
|
|
else
|
|
{
|
|
ps_proc->ps_skip_mv[0].s_mv.i2_mvx = 0;
|
|
ps_proc->ps_skip_mv[0].s_mv.i2_mvy = 0;
|
|
}
|
|
|
|
/* Update skip MV for L1 */
|
|
if ((i4_mode_avail & 0x2) && (!i4_colzeroflag))
|
|
{
|
|
ps_proc->ps_skip_mv[1].s_mv.i2_mvx = ps_proc->ps_pred_mv[1].s_mv.i2_mvx;
|
|
ps_proc->ps_skip_mv[1].s_mv.i2_mvy = ps_proc->ps_pred_mv[1].s_mv.i2_mvy;
|
|
}
|
|
else
|
|
{
|
|
ps_proc->ps_skip_mv[1].s_mv.i2_mvx = 0;
|
|
ps_proc->ps_skip_mv[1].s_mv.i2_mvy = 0;
|
|
}
|
|
|
|
}
|
|
|
|
/***************************************************************************
|
|
* Evaluating skip params : Temporal skip
|
|
**************************************************************************/
|
|
{
|
|
pic_buf_t * ps_ref_pic[MAX_REF_PIC_CNT];
|
|
WORD32 i4_td, i4_tx, i4_tb, i4_dist_scale_factor;
|
|
enc_pu_mv_t *ps_skip_mv = &ps_proc->ps_skip_mv[2];
|
|
|
|
ps_ref_pic[PRED_L0] = ps_proc->aps_ref_pic[PRED_L0];
|
|
ps_ref_pic[PRED_L1] = ps_proc->aps_ref_pic[PRED_L1];
|
|
|
|
i4_tb = ps_proc->ps_codec->i4_poc - ps_ref_pic[PRED_L0]->i4_abs_poc;
|
|
i4_td = ps_ref_pic[PRED_L1]->i4_abs_poc - ps_ref_pic[PRED_L0]->i4_abs_poc;
|
|
|
|
i4_tb = CLIP3(-128, 127, i4_tb);
|
|
i4_td = CLIP3(-128, 127, i4_td);
|
|
|
|
i4_tx = ( 16384 + ABS( i4_td / 2 ) ) / i4_td ;
|
|
i4_dist_scale_factor = CLIP3( -1024, 1023, ( i4_tb * i4_tx + 32 ) >> 6 );
|
|
|
|
/* Motion vectors taken in full pel resolution , hence -> (& 0xfffc) operation */
|
|
ps_skip_mv[PRED_L0].s_mv.i2_mvx = (( i4_dist_scale_factor * s_mvcol.i2_mvx + 128 ) >> 8) & 0xfffc;
|
|
ps_skip_mv[PRED_L0].s_mv.i2_mvy = (( i4_dist_scale_factor * s_mvcol.i2_mvy + 128 ) >> 8) & 0xfffc;
|
|
|
|
ps_skip_mv[PRED_L1].s_mv.i2_mvx = (ps_skip_mv[PRED_L0].s_mv.i2_mvx - s_mvcol.i2_mvx) & 0xfffc;
|
|
ps_skip_mv[PRED_L1].s_mv.i2_mvy = (ps_skip_mv[PRED_L0].s_mv.i2_mvy - s_mvcol.i2_mvy) & 0xfffc;
|
|
|
|
}
|
|
|
|
return i4_skip_type;
|
|
}
|
|
|
|
/**
|
|
*******************************************************************************
|
|
*
|
|
* @brief The function computes the skip motion vectoe for B mb
|
|
*
|
|
* @par Description:
|
|
* The function gives the skip motion vector for B Mb, check if the Mb can be
|
|
* marked as skip
|
|
*
|
|
* @param[in] ps_proc
|
|
* Pointer to process context
|
|
*
|
|
* @param[in] u4_for_me
|
|
* Dummy
|
|
*
|
|
* @param[in] u4_for_me
|
|
* Dummy
|
|
*
|
|
* @returns Flag indicating if the current Mb can be skip or not
|
|
*
|
|
* @remarks The code implements the logic as described in sec 8.4.1.2.2 in H264
|
|
* specification. It also computes co-located MB parmas according to sec 8.4.1.2.1
|
|
*
|
|
*******************************************************************************/
|
|
WORD32 ih264e_find_bskip_params(process_ctxt_t *ps_proc, WORD32 i4_reflist)
|
|
{
|
|
WORD32 i4_colzeroflag;
|
|
|
|
/* motion vectors */
|
|
enc_pu_t *ps_a_pu, *ps_c_pu, *ps_b_pu;
|
|
|
|
/* Syntax elem */
|
|
mb_info_t *ps_a_syn, *ps_b_syn, *ps_c_syn;
|
|
|
|
/* Variables to check if a particular mB is available */
|
|
WORD32 i4_a, i4_b, i4_c, i4_c_avail;
|
|
|
|
/* Mode availability, init to no modes available */
|
|
WORD32 i4_mode_avail;
|
|
|
|
/* mb neighbor availability */
|
|
block_neighbors_t *ps_ngbr_avbl = ps_proc->ps_ngbr_avbl;
|
|
|
|
/* Temp var */
|
|
WORD32 i, i4_cmpl_mode;
|
|
|
|
UNUSED(i4_reflist);
|
|
|
|
/**************************************************************************
|
|
*Find co-locates parameters
|
|
* See sec 8.4.1.2.1 for reference
|
|
**************************************************************************/
|
|
{
|
|
/*
|
|
* Find the co-located Mb and update the skip and pred appropriately
|
|
* 1) Default colpic is forward ref : Table 8-6
|
|
* 2) Default mb col is current MB : Table 8-8
|
|
*/
|
|
|
|
mv_t s_mvcol;
|
|
WORD32 i4_refidxcol;
|
|
|
|
if (ps_proc->ps_colpu->b1_intra_flag)
|
|
{
|
|
s_mvcol.i2_mvx = 0;
|
|
s_mvcol.i2_mvy = 0;
|
|
i4_refidxcol = -1;
|
|
}
|
|
else
|
|
{
|
|
if (ps_proc->ps_colpu->b2_pred_mode != PRED_L1)
|
|
{
|
|
s_mvcol = ps_proc->ps_colpu->s_me_info[PRED_L0].s_mv;
|
|
i4_refidxcol = 0;
|
|
}
|
|
else // if(ps_proc->ps_colpu->b2_pred_mode != PRED_L0)
|
|
{
|
|
s_mvcol = ps_proc->ps_colpu->s_me_info[PRED_L1].s_mv;
|
|
i4_refidxcol = 0;
|
|
}
|
|
}
|
|
|
|
/* RefPicList1[ 0 ] is marked as "used for short-term reference", as default */
|
|
i4_colzeroflag = (!i4_refidxcol && (ABS(s_mvcol.i2_mvx) <= 1)
|
|
&& (ABS(s_mvcol.i2_mvy) <= 1));
|
|
|
|
}
|
|
|
|
/***************************************************************************
|
|
* Evaluating skip params
|
|
**************************************************************************/
|
|
/* Section 8.4.1.2.2 */
|
|
ps_a_syn = &ps_proc->s_left_mb_syntax_ele;
|
|
ps_a_pu = &ps_proc->s_left_mb_pu;
|
|
|
|
ps_b_syn = ps_proc->ps_top_row_mb_syntax_ele + ps_proc->i4_mb_x;
|
|
ps_b_pu = (ps_proc->ps_top_row_pu + ps_proc->i4_mb_x);
|
|
|
|
i4_c_avail = 0;
|
|
if (ps_ngbr_avbl->u1_mb_c)
|
|
{
|
|
ps_c_syn = &((ps_proc->ps_top_row_mb_syntax_ele + ps_proc->i4_mb_x)[1]);
|
|
ps_c_pu = &((ps_proc->ps_top_row_pu + ps_proc->i4_mb_x)[1]);
|
|
i4_c_avail = 1;
|
|
}
|
|
else
|
|
{
|
|
ps_c_syn = &(ps_proc->s_top_left_mb_syntax_ele);
|
|
ps_c_pu = &ps_proc->s_top_left_mb_pu;
|
|
i4_c_avail = ps_ngbr_avbl->u1_mb_d;
|
|
}
|
|
|
|
|
|
i4_a = ps_ngbr_avbl->u1_mb_a;
|
|
i4_a &= !ps_a_syn->u2_is_intra;
|
|
|
|
i4_b = ps_ngbr_avbl->u1_mb_b;
|
|
i4_b &= !ps_b_syn->u2_is_intra;
|
|
|
|
i4_c = i4_c_avail;
|
|
i4_c &= !ps_c_syn->u2_is_intra;
|
|
|
|
/* Init to no mode avail */
|
|
i4_mode_avail = 0;
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
i4_cmpl_mode = (i == 0) ? PRED_L1 : PRED_L0;
|
|
|
|
i4_mode_avail |= (i4_a && (ps_a_pu->b2_pred_mode != i4_cmpl_mode) && (ps_a_pu->s_me_info[i].i1_ref_idx != 0))<<i;
|
|
i4_mode_avail |= (i4_b && (ps_b_pu->b2_pred_mode != i4_cmpl_mode) && (ps_b_pu->s_me_info[i].i1_ref_idx != 0))<<i;
|
|
i4_mode_avail |= (i4_c && (ps_c_pu->b2_pred_mode != i4_cmpl_mode) && (ps_c_pu->s_me_info[i].i1_ref_idx != 0))<<i;
|
|
}
|
|
|
|
/* Update skip MV for L0 */
|
|
if ((i4_mode_avail & 0x1) && (!i4_colzeroflag))
|
|
{
|
|
ps_proc->ps_skip_mv[0].s_mv.i2_mvx = ps_proc->ps_pred_mv[0].s_mv.i2_mvx;
|
|
ps_proc->ps_skip_mv[0].s_mv.i2_mvy = ps_proc->ps_pred_mv[0].s_mv.i2_mvy;
|
|
}
|
|
else
|
|
{
|
|
ps_proc->ps_skip_mv[0].s_mv.i2_mvx = 0;
|
|
ps_proc->ps_skip_mv[0].s_mv.i2_mvy = 0;
|
|
}
|
|
|
|
/* Update skip MV for L1 */
|
|
if ((i4_mode_avail & 0x2) && (!i4_colzeroflag))
|
|
{
|
|
ps_proc->ps_skip_mv[1].s_mv.i2_mvx = ps_proc->ps_pred_mv[1].s_mv.i2_mvx;
|
|
ps_proc->ps_skip_mv[1].s_mv.i2_mvy = ps_proc->ps_pred_mv[1].s_mv.i2_mvy;
|
|
}
|
|
else
|
|
{
|
|
ps_proc->ps_skip_mv[1].s_mv.i2_mvx = 0;
|
|
ps_proc->ps_skip_mv[1].s_mv.i2_mvy = 0;
|
|
}
|
|
|
|
/* Now see if the ME information matches the SKIP information */
|
|
switch (ps_proc->ps_pu->b2_pred_mode)
|
|
{
|
|
case PRED_BI:
|
|
if ( (ps_proc->ps_pu->s_me_info[0].s_mv.i2_mvx == ps_proc->ps_skip_mv[0].s_mv.i2_mvx)
|
|
&& (ps_proc->ps_pu->s_me_info[0].s_mv.i2_mvy == ps_proc->ps_skip_mv[0].s_mv.i2_mvy)
|
|
&& (ps_proc->ps_pu->s_me_info[1].s_mv.i2_mvx == ps_proc->ps_skip_mv[1].s_mv.i2_mvx)
|
|
&& (ps_proc->ps_pu->s_me_info[1].s_mv.i2_mvy == ps_proc->ps_skip_mv[1].s_mv.i2_mvy)
|
|
&& (i4_mode_avail == 0x3 || i4_mode_avail == 0x0))
|
|
{
|
|
return 1;
|
|
}
|
|
break;
|
|
|
|
case PRED_L0:
|
|
if ( (ps_proc->ps_pu->s_me_info[0].s_mv.i2_mvx == ps_proc->ps_skip_mv[0].s_mv.i2_mvx)
|
|
&& (ps_proc->ps_pu->s_me_info[0].s_mv.i2_mvy == ps_proc->ps_skip_mv[0].s_mv.i2_mvy)
|
|
&& (i4_mode_avail == 0x1))
|
|
{
|
|
return 1;
|
|
}
|
|
break;
|
|
|
|
case PRED_L1:
|
|
if ( (ps_proc->ps_pu->s_me_info[1].s_mv.i2_mvx == ps_proc->ps_skip_mv[1].s_mv.i2_mvx)
|
|
&& (ps_proc->ps_pu->s_me_info[1].s_mv.i2_mvy == ps_proc->ps_skip_mv[1].s_mv.i2_mvy)
|
|
&& (i4_mode_avail == 0x2))
|
|
{
|
|
return 1;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
*******************************************************************************
|
|
*
|
|
* @brief This function computes the best motion vector among the tentative mv
|
|
* candidates chosen.
|
|
*
|
|
* @par Description:
|
|
* This function determines the position in the search window at which the motion
|
|
* estimation should begin in order to minimise the number of search iterations.
|
|
*
|
|
* @param[in] ps_mb_part
|
|
* pointer to current mb partition ctxt with respect to ME
|
|
*
|
|
* @param[in] u4_lambda_motion
|
|
* lambda motion
|
|
*
|
|
* @param[in] u4_fast_flag
|
|
* enable/disable fast sad computation
|
|
*
|
|
* @returns mv pair & corresponding distortion and cost
|
|
*
|
|
* @remarks Currently onyl 4 search candiates are supported
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
void ih264e_evaluate_bipred(me_ctxt_t *ps_me_ctxt,
|
|
process_ctxt_t *ps_proc,
|
|
mb_part_ctxt *ps_mb_ctxt_bi)
|
|
{
|
|
|
|
UWORD32 i, u4_fast_sad;
|
|
|
|
WORD32 i4_dest_buff;
|
|
|
|
mv_t *ps_l0_pred_mv, *ps_l1_pred_mv, s_l0_mv, s_l1_mv;
|
|
|
|
UWORD8 *pu1_ref_mb_l0, *pu1_ref_mb_l1;
|
|
|
|
UWORD8 *pu1_dst_buf;
|
|
|
|
WORD32 i4_ref_l0_stride, i4_ref_l1_stride;
|
|
|
|
WORD32 i4_mb_distortion, i4_mb_cost;
|
|
|
|
u4_fast_sad = ps_me_ctxt->u4_enable_fast_sad;
|
|
|
|
i4_dest_buff = 0;
|
|
for (i = 0; i < ps_me_ctxt->u4_num_candidates[PRED_BI]; i += 2)
|
|
{
|
|
pu1_dst_buf = ps_me_ctxt->apu1_subpel_buffs[i4_dest_buff];
|
|
|
|
s_l0_mv.i2_mvx = ps_me_ctxt->as_mv_init_search[PRED_BI][i].i2_mvx >> 2;
|
|
s_l0_mv.i2_mvy = ps_me_ctxt->as_mv_init_search[PRED_BI][i].i2_mvy >> 2;
|
|
s_l1_mv.i2_mvx = ps_me_ctxt->as_mv_init_search[PRED_BI][i + 1].i2_mvx >> 2;
|
|
s_l1_mv.i2_mvy = ps_me_ctxt->as_mv_init_search[PRED_BI][i + 1].i2_mvy >> 2;
|
|
|
|
ps_l0_pred_mv = &ps_proc->ps_pred_mv[PRED_L0].s_mv;
|
|
ps_l1_pred_mv = &ps_proc->ps_pred_mv[PRED_L1].s_mv;
|
|
|
|
if ((ps_me_ctxt->as_mv_init_search[PRED_BI][i].i2_mvx & 0x3)||
|
|
(ps_me_ctxt->as_mv_init_search[PRED_BI][i].i2_mvy & 0x3))
|
|
{
|
|
pu1_ref_mb_l0 = ps_me_ctxt->as_mb_part[PRED_L0].pu1_best_hpel_buf;
|
|
i4_ref_l0_stride = ps_me_ctxt->u4_subpel_buf_strd;
|
|
}
|
|
else
|
|
{
|
|
pu1_ref_mb_l0 = ps_me_ctxt->apu1_ref_buf_luma[PRED_L0] + (s_l0_mv.i2_mvx) + ((s_l0_mv.i2_mvy) * ps_me_ctxt->i4_rec_strd);
|
|
i4_ref_l0_stride = ps_me_ctxt->i4_rec_strd;
|
|
}
|
|
|
|
|
|
if ((ps_me_ctxt->as_mv_init_search[PRED_BI][i + 1].i2_mvx & 0x3) ||
|
|
(ps_me_ctxt->as_mv_init_search[PRED_BI][i + 1].i2_mvy & 0x3))
|
|
{
|
|
pu1_ref_mb_l1 = ps_me_ctxt->as_mb_part[PRED_L1].pu1_best_hpel_buf;
|
|
i4_ref_l1_stride = ps_me_ctxt->u4_subpel_buf_strd;
|
|
}
|
|
else
|
|
{
|
|
pu1_ref_mb_l1 = ps_me_ctxt->apu1_ref_buf_luma[PRED_L1] + (s_l1_mv.i2_mvx) + ((s_l1_mv.i2_mvy) * ps_me_ctxt->i4_rec_strd);
|
|
i4_ref_l1_stride = ps_me_ctxt->i4_rec_strd;
|
|
}
|
|
|
|
ps_proc->ps_codec->pf_inter_pred_luma_bilinear(
|
|
pu1_ref_mb_l0, pu1_ref_mb_l1, pu1_dst_buf,
|
|
i4_ref_l0_stride, i4_ref_l1_stride,
|
|
ps_me_ctxt->u4_subpel_buf_strd, MB_SIZE, MB_SIZE);
|
|
|
|
ps_me_ctxt->pf_ime_compute_sad_16x16[u4_fast_sad](
|
|
ps_me_ctxt->pu1_src_buf_luma, pu1_dst_buf,
|
|
ps_me_ctxt->i4_src_strd, ps_me_ctxt->u4_subpel_buf_strd,
|
|
INT_MAX, &i4_mb_distortion);
|
|
|
|
/* compute cost */
|
|
i4_mb_cost = ps_me_ctxt->pu1_mv_bits[ps_me_ctxt->as_mv_init_search[PRED_BI][i].i2_mvx - ps_l0_pred_mv->i2_mvx];
|
|
i4_mb_cost += ps_me_ctxt->pu1_mv_bits[ps_me_ctxt->as_mv_init_search[PRED_BI][i].i2_mvy - ps_l0_pred_mv->i2_mvy];
|
|
i4_mb_cost += ps_me_ctxt->pu1_mv_bits[ps_me_ctxt->as_mv_init_search[PRED_BI][i + 1].i2_mvx - ps_l1_pred_mv->i2_mvx];
|
|
i4_mb_cost += ps_me_ctxt->pu1_mv_bits[ps_me_ctxt->as_mv_init_search[PRED_BI][i + 1].i2_mvy - ps_l1_pred_mv->i2_mvy];
|
|
|
|
i4_mb_cost -= (ps_me_ctxt->i4_skip_bias[BSLICE]) * (ps_me_ctxt->i4_skip_type == PRED_BI) * (i == 0);
|
|
|
|
|
|
i4_mb_cost *= ps_me_ctxt->u4_lambda_motion;
|
|
i4_mb_cost += i4_mb_distortion;
|
|
|
|
if (i4_mb_cost < ps_mb_ctxt_bi->i4_mb_cost)
|
|
{
|
|
ps_mb_ctxt_bi->i4_srch_pos_idx = (i>>1);
|
|
ps_mb_ctxt_bi->i4_mb_cost = i4_mb_cost;
|
|
ps_mb_ctxt_bi->i4_mb_distortion = i4_mb_distortion;
|
|
ps_mb_ctxt_bi->pu1_best_hpel_buf = pu1_dst_buf;
|
|
i4_dest_buff = (i4_dest_buff + 1) % 2;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
*******************************************************************************
|
|
*
|
|
* @brief This function performs motion estimation for the current mb
|
|
*
|
|
* @par Description:
|
|
* The current mb is compared with a list of mb's in the reference frame for
|
|
* least cost. The mb that offers least cost is chosen as predicted mb and the
|
|
* displacement of the predicted mb from index location of the current mb is
|
|
* signaled as mv. The list of the mb's that are chosen in the reference frame
|
|
* are dependent on the speed of the ME configured.
|
|
*
|
|
* @param[in] ps_proc
|
|
* Process context corresponding to the job
|
|
*
|
|
* @returns motion vector of the pred mb, sad, cost.
|
|
*
|
|
* @remarks none
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
void ih264e_compute_me_multi_reflist(process_ctxt_t *ps_proc)
|
|
{
|
|
/* me ctxt */
|
|
me_ctxt_t *ps_me_ctxt = &ps_proc->s_me_ctxt;
|
|
|
|
/* codec context */
|
|
codec_t *ps_codec = ps_proc->ps_codec;
|
|
|
|
/* Temp variables for looping over ref lists */
|
|
WORD32 i4_reflist, i4_max_reflist;
|
|
|
|
/* recon stride */
|
|
WORD32 i4_rec_strd = ps_proc->i4_rec_strd;
|
|
|
|
/* source buffer for halp pel generation functions */
|
|
UWORD8 *pu1_hpel_src;
|
|
|
|
/* quantization parameters */
|
|
quant_params_t *ps_qp_params = ps_proc->ps_qp_params[0];
|
|
|
|
/* Mb part ctxts for SKIP */
|
|
mb_part_ctxt as_skip_mbpart[2];
|
|
|
|
/* Sad therholds */
|
|
ps_me_ctxt->pu2_sad_thrsh = ps_qp_params->pu2_sad_thrsh;
|
|
|
|
{
|
|
WORD32 rows_above, rows_below, columns_left, columns_right;
|
|
|
|
/* During evaluation for motion vectors do not search through padded regions */
|
|
/* Obtain number of rows and columns that are effective for computing for me evaluation */
|
|
rows_above = MB_SIZE + ps_proc->i4_mb_y * MB_SIZE;
|
|
rows_below = (ps_proc->i4_ht_mbs - ps_proc->i4_mb_y) * MB_SIZE;
|
|
columns_left = MB_SIZE + ps_proc->i4_mb_x * MB_SIZE;
|
|
columns_right = (ps_proc->i4_wd_mbs - ps_proc->i4_mb_x) * MB_SIZE;
|
|
|
|
/* init srch range */
|
|
/* NOTE : For now, lets limit the search range by DEFAULT_MAX_SRCH_RANGE_X / 2
|
|
* on all sides.
|
|
*/
|
|
ps_me_ctxt->i4_srch_range_w = -MIN(columns_left, DEFAULT_MAX_SRCH_RANGE_X >> 1);
|
|
ps_me_ctxt->i4_srch_range_e = MIN(columns_right, DEFAULT_MAX_SRCH_RANGE_X >> 1);
|
|
ps_me_ctxt->i4_srch_range_n = -MIN(rows_above, DEFAULT_MAX_SRCH_RANGE_Y >> 1);
|
|
ps_me_ctxt->i4_srch_range_s = MIN(rows_below, DEFAULT_MAX_SRCH_RANGE_Y >> 1);
|
|
|
|
/* this is to facilitate fast sub pel computation with minimal loads */
|
|
if (ps_me_ctxt->u4_enable_hpel)
|
|
{
|
|
ps_me_ctxt->i4_srch_range_w += 1;
|
|
ps_me_ctxt->i4_srch_range_e -= 1;
|
|
ps_me_ctxt->i4_srch_range_n += 1;
|
|
ps_me_ctxt->i4_srch_range_s -= 1;
|
|
}
|
|
}
|
|
|
|
/* Compute ME and store the MVs */
|
|
{
|
|
/***********************************************************************
|
|
* Compute ME for lists L0 and L1
|
|
* For L0 -> L0 skip + L0
|
|
* for L1 -> L0 skip + L0 + L1 skip + L1
|
|
***********************************************************************/
|
|
i4_max_reflist = (ps_proc->i4_slice_type == PSLICE) ? PRED_L0 : PRED_L1;
|
|
|
|
/* Init SATQD for the current list */
|
|
ps_me_ctxt->u4_min_sad_reached = 0;
|
|
ps_me_ctxt->i4_min_sad = ps_proc->ps_cur_mb->u4_min_sad;
|
|
|
|
for (i4_reflist = PRED_L0; i4_reflist <= i4_max_reflist; i4_reflist++)
|
|
{
|
|
|
|
/* Get the seed motion vector candidates */
|
|
ih264e_get_search_candidates(ps_proc, ps_me_ctxt, i4_reflist);
|
|
|
|
/* ****************************************************************
|
|
*Evaluate the SKIP for current list
|
|
* ****************************************************************/
|
|
as_skip_mbpart[i4_reflist].s_mv_curr.i2_mvx = 0;
|
|
as_skip_mbpart[i4_reflist].s_mv_curr.i2_mvy = 0;
|
|
as_skip_mbpart[i4_reflist].i4_mb_cost = INT_MAX;
|
|
as_skip_mbpart[i4_reflist].i4_mb_distortion = INT_MAX;
|
|
|
|
if (ps_me_ctxt->i4_skip_type == i4_reflist)
|
|
{
|
|
ime_compute_skip_cost( ps_me_ctxt,
|
|
(ime_mv_t *)(&ps_proc->ps_skip_mv[i4_reflist].s_mv),
|
|
&as_skip_mbpart[i4_reflist],
|
|
ps_proc->ps_codec->s_cfg.u4_enable_satqd,
|
|
i4_reflist,
|
|
(ps_proc->i4_slice_type == BSLICE) );
|
|
}
|
|
|
|
as_skip_mbpart[i4_reflist].s_mv_curr.i2_mvx <<= 2;
|
|
as_skip_mbpart[i4_reflist].s_mv_curr.i2_mvy <<= 2;
|
|
|
|
/******************************************************************
|
|
* Evaluate ME For current list
|
|
*****************************************************************/
|
|
ps_me_ctxt->as_mb_part[i4_reflist].s_mv_curr.i2_mvx = 0;
|
|
ps_me_ctxt->as_mb_part[i4_reflist].s_mv_curr.i2_mvy = 0;
|
|
ps_me_ctxt->as_mb_part[i4_reflist].i4_mb_cost = INT_MAX;
|
|
ps_me_ctxt->as_mb_part[i4_reflist].i4_mb_distortion = INT_MAX;
|
|
|
|
/* Init Hpel */
|
|
ps_me_ctxt->as_mb_part[i4_reflist].pu1_best_hpel_buf = NULL;
|
|
|
|
/* In case we found out the minimum SAD, exit the ME eval */
|
|
if (ps_me_ctxt->u4_min_sad_reached)
|
|
{
|
|
i4_max_reflist = i4_reflist;
|
|
break;
|
|
}
|
|
|
|
|
|
/* Evaluate search candidates for initial mv pt */
|
|
ime_evaluate_init_srchposn_16x16(ps_me_ctxt, i4_reflist);
|
|
|
|
/********************************************************************/
|
|
/* full pel motion estimation */
|
|
/********************************************************************/
|
|
ime_full_pel_motion_estimation_16x16(ps_me_ctxt, i4_reflist);
|
|
|
|
DEBUG_MV_HISTOGRAM_ADD((ps_me_ctxt->s_mb_part.s_mv_curr.i2_mvx >> 2),
|
|
(ps_me_ctxt->s_mb_part.s_mv_curr.i2_mvy >> 2));
|
|
|
|
DEBUG_SAD_HISTOGRAM_ADD(ps_me_ctxt->s_mb_part.i4_mb_distortion, 1);
|
|
|
|
/* Scale the MV to qpel resolution */
|
|
ps_me_ctxt->as_mb_part[i4_reflist].s_mv_curr.i2_mvx <<= 2;
|
|
ps_me_ctxt->as_mb_part[i4_reflist].s_mv_curr.i2_mvy <<= 2;
|
|
|
|
if (ps_me_ctxt->u4_enable_hpel)
|
|
{
|
|
/* moving src pointer to the converged motion vector location */
|
|
pu1_hpel_src = ps_me_ctxt->apu1_ref_buf_luma[i4_reflist]
|
|
+ (ps_me_ctxt->as_mb_part[i4_reflist].s_mv_curr.i2_mvx >> 2)
|
|
+ ((ps_me_ctxt->as_mb_part[i4_reflist].s_mv_curr.i2_mvy >> 2)* i4_rec_strd);
|
|
|
|
ps_me_ctxt->apu1_subpel_buffs[0] = ps_proc->apu1_subpel_buffs[0];
|
|
ps_me_ctxt->apu1_subpel_buffs[1] = ps_proc->apu1_subpel_buffs[1];
|
|
ps_me_ctxt->apu1_subpel_buffs[2] = ps_proc->apu1_subpel_buffs[2];
|
|
|
|
/* Init the search position to an invalid number */
|
|
ps_me_ctxt->as_mb_part[i4_reflist].i4_srch_pos_idx = 3;
|
|
|
|
/* Incase a buffer is still in use by L0, replace it with spare buff */
|
|
ps_me_ctxt->apu1_subpel_buffs[ps_me_ctxt->as_mb_part[PRED_L0].i4_srch_pos_idx] =
|
|
ps_proc->apu1_subpel_buffs[3];
|
|
|
|
|
|
ps_me_ctxt->u4_subpel_buf_strd = HP_BUFF_WD;
|
|
|
|
/* half pel search is done for both sides of full pel,
|
|
* hence half_x of width x height = 17x16 is created
|
|
* starting from left half_x of converged full pel */
|
|
pu1_hpel_src -= 1;
|
|
|
|
/* computing half_x */
|
|
ps_codec->pf_ih264e_sixtapfilter_horz(pu1_hpel_src,
|
|
ps_me_ctxt->apu1_subpel_buffs[0],
|
|
i4_rec_strd,
|
|
ps_me_ctxt->u4_subpel_buf_strd);
|
|
|
|
/*
|
|
* Halfpel search is done for both sides of full pel,
|
|
* hence half_y of width x height = 16x17 is created
|
|
* starting from top half_y of converged full pel
|
|
* for half_xy top_left is required
|
|
* hence it starts from pu1_hpel_src = full_pel_converged_point - i4_rec_strd - 1
|
|
*/
|
|
pu1_hpel_src -= i4_rec_strd;
|
|
|
|
/* computing half_y and half_xy */
|
|
ps_codec->pf_ih264e_sixtap_filter_2dvh_vert(
|
|
pu1_hpel_src, ps_me_ctxt->apu1_subpel_buffs[1],
|
|
ps_me_ctxt->apu1_subpel_buffs[2], i4_rec_strd,
|
|
ps_me_ctxt->u4_subpel_buf_strd, ps_proc->ai16_pred1 + 3,
|
|
ps_me_ctxt->u4_subpel_buf_strd);
|
|
|
|
ime_sub_pel_motion_estimation_16x16(ps_me_ctxt, i4_reflist);
|
|
|
|
}
|
|
}
|
|
|
|
/***********************************************************************
|
|
* If a particular skiip Mv is giving better sad, copy to the corresponding
|
|
* MBPART
|
|
* In B slices this loop should go only to PREDL1: If we found min sad
|
|
* we will go to the skip ref list only
|
|
* Have to find a way to make it without too much change or new vars
|
|
**********************************************************************/
|
|
for (i4_reflist = 0; i4_reflist <= i4_max_reflist; i4_reflist++)
|
|
{
|
|
if (as_skip_mbpart[i4_reflist].i4_mb_cost < ps_me_ctxt->as_mb_part[i4_reflist].i4_mb_cost)
|
|
{
|
|
ps_me_ctxt->as_mb_part[i4_reflist].i4_mb_cost = as_skip_mbpart[i4_reflist].i4_mb_cost;
|
|
ps_me_ctxt->as_mb_part[i4_reflist].i4_mb_distortion = as_skip_mbpart[i4_reflist].i4_mb_distortion;
|
|
ps_me_ctxt->as_mb_part[i4_reflist].s_mv_curr = as_skip_mbpart[i4_reflist].s_mv_curr;
|
|
}
|
|
}
|
|
|
|
/***********************************************************************
|
|
* Compute ME for BI
|
|
* In case of BI we do ME for two candidates
|
|
* 1) The best L0 and L1 Mvs
|
|
* 2) Skip L0 and L1 MVs
|
|
*
|
|
* TODO
|
|
* one of the search candidates is skip. Hence it may be duplicated
|
|
***********************************************************************/
|
|
if (i4_max_reflist == PRED_L1 && ps_me_ctxt->u4_min_sad_reached == 0)
|
|
{
|
|
WORD32 i, j = 0;
|
|
WORD32 l0_srch_pos_idx, l1_srch_pos_idx;
|
|
WORD32 i4_l0_skip_mv_idx, i4_l1_skip_mv_idx;
|
|
|
|
/* Get the free buffers */
|
|
l0_srch_pos_idx = ps_me_ctxt->as_mb_part[PRED_L0].i4_srch_pos_idx;
|
|
l1_srch_pos_idx = ps_me_ctxt->as_mb_part[PRED_L1].i4_srch_pos_idx;
|
|
|
|
/* Search for the two free buffers in subpel list */
|
|
for (i = 0; i < SUBPEL_BUFF_CNT; i++)
|
|
{
|
|
if (i != l0_srch_pos_idx && i != l1_srch_pos_idx)
|
|
{
|
|
ps_me_ctxt->apu1_subpel_buffs[j] = ps_proc->apu1_subpel_buffs[i];
|
|
j++;
|
|
}
|
|
}
|
|
ps_me_ctxt->u4_subpel_buf_strd = HP_BUFF_WD;
|
|
|
|
/* Copy the statial SKIP MV of each list */
|
|
i4_l0_skip_mv_idx = ps_me_ctxt->u4_num_candidates[PRED_L0] - 2;
|
|
i4_l1_skip_mv_idx = ps_me_ctxt->u4_num_candidates[PRED_L1] - 2;
|
|
ps_me_ctxt->as_mv_init_search[PRED_BI][0].i2_mvx = ps_me_ctxt->as_mv_init_search[PRED_L0][i4_l0_skip_mv_idx].i2_mvx << 2;
|
|
ps_me_ctxt->as_mv_init_search[PRED_BI][0].i2_mvy = ps_me_ctxt->as_mv_init_search[PRED_L0][i4_l0_skip_mv_idx].i2_mvy << 2;
|
|
ps_me_ctxt->as_mv_init_search[PRED_BI][1].i2_mvx = ps_me_ctxt->as_mv_init_search[PRED_L1][i4_l1_skip_mv_idx].i2_mvx << 2;
|
|
ps_me_ctxt->as_mv_init_search[PRED_BI][1].i2_mvy = ps_me_ctxt->as_mv_init_search[PRED_L1][i4_l1_skip_mv_idx].i2_mvy << 2;
|
|
|
|
/* Copy the SKIP MV temporal of each list */
|
|
i4_l0_skip_mv_idx++;
|
|
i4_l1_skip_mv_idx++;
|
|
ps_me_ctxt->as_mv_init_search[PRED_BI][2].i2_mvx = ps_me_ctxt->as_mv_init_search[PRED_L0][i4_l0_skip_mv_idx].i2_mvx << 2;
|
|
ps_me_ctxt->as_mv_init_search[PRED_BI][2].i2_mvy = ps_me_ctxt->as_mv_init_search[PRED_L0][i4_l0_skip_mv_idx].i2_mvy << 2;
|
|
ps_me_ctxt->as_mv_init_search[PRED_BI][3].i2_mvx = ps_me_ctxt->as_mv_init_search[PRED_L1][i4_l1_skip_mv_idx].i2_mvx << 2;
|
|
ps_me_ctxt->as_mv_init_search[PRED_BI][3].i2_mvy = ps_me_ctxt->as_mv_init_search[PRED_L1][i4_l1_skip_mv_idx].i2_mvy << 2;
|
|
|
|
/* Copy the best MV after ME */
|
|
ps_me_ctxt->as_mv_init_search[PRED_BI][4] = ps_me_ctxt->as_mb_part[PRED_L0].s_mv_curr;
|
|
ps_me_ctxt->as_mv_init_search[PRED_BI][5] = ps_me_ctxt->as_mb_part[PRED_L1].s_mv_curr;
|
|
|
|
ps_me_ctxt->u4_num_candidates[PRED_BI] = 6;
|
|
|
|
ps_me_ctxt->as_mb_part[PRED_BI].i4_mb_cost = INT_MAX;
|
|
ps_me_ctxt->as_mb_part[PRED_BI].i4_mb_distortion = INT_MAX;
|
|
|
|
ih264e_evaluate_bipred(ps_me_ctxt, ps_proc,
|
|
&ps_me_ctxt->as_mb_part[PRED_BI]);
|
|
|
|
i4_max_reflist = PRED_BI;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* Now get the minimum of MB part sads by searching over all ref lists
|
|
**********************************************************************/
|
|
ps_proc->ps_pu->b2_pred_mode = 0x3;
|
|
|
|
for (i4_reflist = 0; i4_reflist <= i4_max_reflist; i4_reflist++)
|
|
{
|
|
if (ps_me_ctxt->as_mb_part[i4_reflist].i4_mb_cost < ps_proc->ps_cur_mb->i4_mb_cost)
|
|
{
|
|
ps_proc->ps_cur_mb->i4_mb_cost = ps_me_ctxt->as_mb_part[i4_reflist].i4_mb_cost;
|
|
ps_proc->ps_cur_mb->i4_mb_distortion = ps_me_ctxt->as_mb_part[i4_reflist].i4_mb_distortion;
|
|
ps_proc->ps_cur_mb->u4_mb_type = (ps_proc->i4_slice_type == PSLICE) ? P16x16 : B16x16;
|
|
ps_proc->ps_pu->b2_pred_mode = i4_reflist ;
|
|
}
|
|
}
|
|
|
|
/**********************************************************************
|
|
* In case we have a BI MB, we have to copy the buffers and set proer MV's
|
|
* 1)In case its BI, we need to get the best MVs given by BI and update
|
|
* to their corresponding MB part
|
|
* 2)We also need to copy the buffer in which bipred buff is populated
|
|
*
|
|
* Not that if we have
|
|
**********************************************************************/
|
|
if (ps_proc->ps_pu->b2_pred_mode == PRED_BI)
|
|
{
|
|
WORD32 i4_srch_pos = ps_me_ctxt->as_mb_part[PRED_BI].i4_srch_pos_idx;
|
|
UWORD8 *pu1_bi_buf = ps_me_ctxt->as_mb_part[PRED_BI].pu1_best_hpel_buf;
|
|
|
|
ps_me_ctxt->as_mb_part[PRED_L0].s_mv_curr = ps_me_ctxt->as_mv_init_search[PRED_BI][i4_srch_pos << 1];
|
|
ps_me_ctxt->as_mb_part[PRED_L1].s_mv_curr = ps_me_ctxt->as_mv_init_search[PRED_BI][(i4_srch_pos << 1) + 1];
|
|
|
|
/* Now we have to copy the buffers */
|
|
ps_codec->pf_inter_pred_luma_copy(pu1_bi_buf,
|
|
ps_proc->pu1_best_subpel_buf,
|
|
ps_me_ctxt->u4_subpel_buf_strd,
|
|
ps_proc->u4_bst_spel_buf_strd,
|
|
MB_SIZE, MB_SIZE, NULL, 0);
|
|
|
|
}
|
|
else if (ps_me_ctxt->as_mb_part[ps_proc->ps_pu->b2_pred_mode].pu1_best_hpel_buf)
|
|
{
|
|
/* Now we have to copy the buffers */
|
|
ps_codec->pf_inter_pred_luma_copy(
|
|
ps_me_ctxt->as_mb_part[ps_proc->ps_pu->b2_pred_mode].pu1_best_hpel_buf,
|
|
ps_proc->pu1_best_subpel_buf,
|
|
ps_me_ctxt->u4_subpel_buf_strd,
|
|
ps_proc->u4_bst_spel_buf_strd, MB_SIZE, MB_SIZE,
|
|
NULL, 0);
|
|
}
|
|
}
|
|
|
|
/**************************************************************************
|
|
*Now copy the MVs to the current PU with qpel scaling
|
|
***************************************************************************/
|
|
ps_proc->ps_pu->s_me_info[PRED_L0].s_mv.i2_mvx = (ps_me_ctxt->as_mb_part[PRED_L0].s_mv_curr.i2_mvx);
|
|
ps_proc->ps_pu->s_me_info[PRED_L0].s_mv.i2_mvy = (ps_me_ctxt->as_mb_part[PRED_L0].s_mv_curr.i2_mvy);
|
|
ps_proc->ps_pu->s_me_info[PRED_L1].s_mv.i2_mvx = (ps_me_ctxt->as_mb_part[PRED_L1].s_mv_curr.i2_mvx);
|
|
ps_proc->ps_pu->s_me_info[PRED_L1].s_mv.i2_mvy = (ps_me_ctxt->as_mb_part[PRED_L1].s_mv_curr.i2_mvy);
|
|
|
|
|
|
ps_proc->ps_pu->s_me_info[0].i1_ref_idx = (ps_proc->ps_pu->b2_pred_mode != PRED_L1)? -1:0;
|
|
ps_proc->ps_pu->s_me_info[1].i1_ref_idx = (ps_proc->ps_pu->b2_pred_mode != PRED_L0)? -1:0;
|
|
|
|
/* number of partitions */
|
|
ps_proc->u4_num_sub_partitions = 1;
|
|
*(ps_proc->pu4_mb_pu_cnt) = 1;
|
|
|
|
/* position in-terms of PU */
|
|
ps_proc->ps_pu->b4_pos_x = 0;
|
|
ps_proc->ps_pu->b4_pos_y = 0;
|
|
|
|
/* PU size */
|
|
ps_proc->ps_pu->b4_wd = 3;
|
|
ps_proc->ps_pu->b4_ht = 3;
|
|
|
|
/* Update min sad conditions */
|
|
if (ps_me_ctxt->u4_min_sad_reached == 1)
|
|
{
|
|
ps_proc->ps_cur_mb->u4_min_sad_reached = 1;
|
|
ps_proc->ps_cur_mb->u4_min_sad = ps_me_ctxt->i4_min_sad;
|
|
}
|
|
}
|
|
|