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294 lines
17 KiB
C
294 lines
17 KiB
C
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/******************************************************************************
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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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#ifndef _IH264D_MB_UTILS_H_
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#define _IH264D_MB_UTILS_H_
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/*!
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**************************************************************************
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* \file ih264d_mb_utils.h
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*
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* \brief
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* Contains declarations of the utility functions needed to decode MB
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*
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* \date
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* 18/12/2002
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*
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* \author AI
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**************************************************************************
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*/
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#include "ih264_typedefs.h"
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#include "ih264_macros.h"
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#include "ih264_platform_macros.h"
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#include "ih264d_structs.h"
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/*--------------------------------------------------------------------*/
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/* Macros to get raster scan position of a block[8x8] / sub block[4x4]*/
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/*--------------------------------------------------------------------*/
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#define GET_BLK_RASTER_POS_X(x) ((x & 0x01) << 1)
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#define GET_BLK_RASTER_POS_Y(y) ((y >> 1) << 1)
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#define GET_SUB_BLK_RASTER_POS_X(x) ((x & 0x01))
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#define GET_SUB_BLK_RASTER_POS_Y(y) ((y >> 1))
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/*--------------------------------------------------------------------*/
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/* Masks used in decoding of Macroblock */
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/*--------------------------------------------------------------------*/
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#define LEFT_MB_AVAILABLE_MASK 0x01
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#define TOP_LEFT_MB_AVAILABLE_MASK 0x02
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#define TOP_MB_AVAILABLE_MASK 0x04
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#define TOP_RIGHT_MB_AVAILABLE_MASK 0x08
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#define TOP_RT_SUBBLOCK_MASK_MOD 0xFFF7
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#define TOP_RIGHT_DEFAULT_AVAILABLE 0x5750
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#define TOP_RIGHT_TOPR_AVAILABLE 0x0008
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#define TOP_RIGHT_TOP_AVAILABLE 0x0007
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#define TOP_LEFT_DEFAULT_AVAILABLE 0xEEE0
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#define TOP_LEFT_TOPL_AVAILABLE 0x0001
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#define TOP_LEFT_TOP_AVAILABLE 0x000E
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#define TOP_LEFT_LEFT_AVAILABLE 0x1110
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#define CHECK_MB_MAP(u4_mb_num, mb_map, u4_cond) \
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{ \
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UWORD32 u4_bit_number; \
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volatile UWORD8 *pu1_mb_flag; \
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\
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u4_bit_number = u4_mb_num & 0x07; \
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pu1_mb_flag = (UWORD8 *)mb_map + (u4_mb_num >> 3); \
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\
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u4_cond = CHECKBIT((*pu1_mb_flag), u4_bit_number); \
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}
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#define CHECK_MB_MAP_BYTE(u4_mb_num, mb_map, u4_cond) \
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{ \
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volatile UWORD8 *pu1_mb_flag; \
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\
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pu1_mb_flag = (UWORD8 *)mb_map + (u4_mb_num ); \
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\
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u4_cond = (*pu1_mb_flag); \
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}
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#define UPDATE_MB_MAP(u2_frm_wd_in_mbs, u2_mbx, u2_mby, mb_map, mb_count) \
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{ \
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UWORD32 u4_bit_number; \
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UWORD32 u4_mb_number; \
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\
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u4_mb_number = u2_frm_wd_in_mbs * (u2_mby >> u1_mbaff) + u2_mbx; \
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\
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u4_bit_number = u4_mb_number & 0x07; \
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/* \
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* In case of MbAff, update the mb_map only if the entire MB is done. We can check that \
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* by checking if Y is odd, implying that this is the second row in the MbAff MB \
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*/ \
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SET_BIT(mb_map[u4_mb_number >> 3], u4_bit_number); \
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\
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if (1 == u1_mbaff) \
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{ \
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/* \
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* If MBAFF u4_flag is set, set this MB and the MB just below this. \
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* So, add frame width to the MB number and set that bit. \
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*/ \
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/* \
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u4_mb_number += u2_frm_wd_in_mbs; \
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\
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u4_bit_number = u4_mb_number & 0x07; \
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\
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SET_BIT(mb_map[u4_mb_number >> 3], u4_bit_number); \
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*/ \
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} \
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\
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/*H264_DEC_DEBUG_PRINT("SETBIT: %d\n", u4_mb_number);*/ \
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mb_count++; \
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}
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#define UPDATE_MB_MAP_MBNUM(mb_map, u4_mb_number) \
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{ \
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UWORD32 u4_bit_number; \
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volatile UWORD8 *pu1_mb_flag; \
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\
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u4_bit_number = u4_mb_number & 0x07; \
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pu1_mb_flag = (UWORD8 *)mb_map + (u4_mb_number >> 3); \
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/* \
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* In case of MbAff, update the mb_map only if the entire MB is done. We can check that \
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* by checking if Y is odd, implying that this is the second row in the MbAff MB \
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*/ \
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SET_BIT((*pu1_mb_flag), u4_bit_number); \
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}
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#define UPDATE_MB_MAP_MBNUM_BYTE(mb_map, u4_mb_number) \
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{ \
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volatile UWORD8 *pu1_mb_flag; \
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\
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pu1_mb_flag = (UWORD8 *)mb_map + (u4_mb_number); \
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/* \
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* In case of MbAff, update the mb_map only if the entire MB is done. We can check that \
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* by checking if Y is odd, implying that this is the second row in the MbAff MB \
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*/ \
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(*pu1_mb_flag) = 1; \
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}
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#define UPDATE_SLICE_NUM_MAP(slice_map, u4_mb_number,u2_slice_num) \
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{ \
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volatile UWORD16 *pu2_slice_map; \
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\
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pu2_slice_map = (UWORD16 *)slice_map + (u4_mb_number); \
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(*pu2_slice_map) = u2_slice_num; \
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}
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#define GET_SLICE_NUM_MAP(slice_map, mb_number,u2_slice_num) \
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{ \
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volatile UWORD16 *pu2_slice_map; \
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\
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pu2_slice_map = (UWORD16 *)slice_map + (mb_number); \
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u2_slice_num = (*pu2_slice_map) ; \
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}
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#define GET_XPOS_PRED(u1_out,pkd_info) \
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{ \
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WORD32 bit_field; \
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bit_field = pkd_info & 0x3; \
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u1_out = bit_field; \
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}
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#define GET_YPOS_PRED(u1_out,pkd_info) \
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{ \
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WORD32 bit_field; \
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bit_field = pkd_info >> 2; \
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u1_out = bit_field & 0x3; \
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}
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#define GET_WIDTH_PRED(u1_out,pkd_info) \
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{ \
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WORD32 bit_field; \
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bit_field = pkd_info >> 4; \
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bit_field = (bit_field & 0x3) << 1 ; \
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u1_out = (bit_field == 0)?1:bit_field; \
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}
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#define GET_HEIGHT_PRED(u1_out,pkd_info) \
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{ \
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WORD32 bit_field; \
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bit_field = pkd_info >> 6; \
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bit_field = (bit_field & 0x3) << 1 ; \
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u1_out = (bit_field == 0)?1:bit_field; \
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}
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/*!
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**************************************************************************
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* \brief Masks for elements present in the first column but not on the
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* first row.
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**************************************************************************
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*/
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#define FIRST_COL_NOT_FIRST_ROW 0xFAFB
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#define FIRST_ROW_MASK 0xFFCC
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/*!
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**************************************************************************
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* \brief Mask for elements presen in the first row but not in the
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* last column.
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**************************************************************************
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*/
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#define FIRST_ROW_NOT_LAST_COL 0xFFEC
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/*!
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**************************************************************************
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* \brief Mask for elements presen in the first row but not in the
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* first column.
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**************************************************************************
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*/
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#define FIRST_ROW_NOT_FIRST_COL 0xFFCD
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/*!
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**************************************************************************
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* \brief Masks for the top right subMB of a 4x4 block
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**************************************************************************
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*/
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#define TOP_RT_SUBBLOCK_MASK 0xFFDF
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/*!
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**************************************************************************
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* \brief Masks for the top left subMB of a 4x4 block
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**************************************************************************
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*/
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#define TOP_LT_SUBBLOCK_MASK 0xFFFE
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/*!
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**************************************************************************
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* \brief Indicates if a subMB has a top right subMB available
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**************************************************************************
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*/
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#define TOP_RT_SUBBLOCK_MB_MASK 0x5F4C
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#define FIRST_COL_MASK 0xFAFA
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/*--------------------------------------------------------------------*/
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/* Macros to calculate the current position of a MB wrt picture */
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/*--------------------------------------------------------------------*/
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#define MB_LUMA_PIC_OFFSET(mb_x,mb_y,frmWidthY) (((mb_y)*(frmWidthY) + (mb_x))<<4)
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#define MB_CHROMA_PIC_OFFSET(mb_x,mb_y,frmWidthUV) (((mb_y)*(frmWidthUV) + (mb_x))<<3)
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/*--------------------------------------------------------------------*/
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/* Macros to calculate the current position of a MB wrt N[ Num coeff] Array */
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/*--------------------------------------------------------------------*/
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#define MB_PARAM_OFFSET(mb_x,mb_y,frmWidthInMbs,u1_mbaff,u1_topmb) \
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((mb_x << u1_mbaff) + (1 - u1_topmb) + (mb_y * frmWidthInMbs))
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UWORD32 ih264d_get_mb_info_cavlc_mbaff(dec_struct_t * ps_dec,
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const UWORD16 ui16_curMbAddress,
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dec_mb_info_t * ps_cur_mb_info,
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UWORD32 u4_mbskip_run);
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UWORD32 ih264d_get_mb_info_cavlc_nonmbaff(dec_struct_t * ps_dec,
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const UWORD16 ui16_curMbAddress,
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dec_mb_info_t * ps_cur_mb_info,
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UWORD32 u4_mbskip_run);
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UWORD32 ih264d_get_mb_info_cabac_mbaff(dec_struct_t * ps_dec,
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const UWORD16 ui16_curMbAddress,
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dec_mb_info_t * ps_cur_mb_info,
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UWORD32 u4_mbskip_run);
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UWORD32 ih264d_get_mb_info_cabac_nonmbaff(dec_struct_t * ps_dec,
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const UWORD16 ui16_curMbAddress,
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dec_mb_info_t * ps_cur_mb_info,
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UWORD32 u4_mbskip_run);
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UWORD8 get_cabac_context_non_mbaff(dec_struct_t * ps_dec, UWORD16 u2_mbskip);
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UWORD32 ih264d_get_cabac_context_mbaff(dec_struct_t * ps_dec,
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dec_mb_info_t * ps_cur_mb_info,
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UWORD32 u4_mbskip);
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WORD32 PutMbToFrame(dec_struct_t * ps_dec);
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void ih264d_get_mbaff_neighbours(dec_struct_t * ps_dec,
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dec_mb_info_t * ps_cur_mb_info,
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UWORD8 uc_curMbFldDecFlag);
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void ih264d_update_mbaff_left_nnz(dec_struct_t * ps_dec,
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dec_mb_info_t * ps_cur_mb_info);
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void ih264d_transfer_mb_group_data(dec_struct_t * ps_dec,
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const UWORD8 u1_num_mbs,
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const UWORD8 u1_end_of_row, /* Cur n-Mb End of Row Flag */
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const UWORD8 u1_end_of_row_next /* Next n-Mb End of Row Flag */
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);
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//void FillRandomData(UWORD8 *pu1_buf, WORD32 u4_bufSize);
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#endif /* _MB_UTILS_H_ */
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