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jamey.hick |
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/*!
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*************************************************************************************
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* \file context_ini.c
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*
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* \brief
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* CABAC context initializations
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*
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* \author
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* Main contributors (see contributors.h for copyright, address and affiliation details)
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* - Detlev Marpe <marpe@hhi.de>
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* - Heiko Schwarz <hschwarz@hhi.de>
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**************************************************************************************
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*/
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#define CONTEXT_INI_C
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#include "defines.h"
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#include "global.h"
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#include "biaridecod.h"
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#include "ctx_tables.h"
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#define BIARI_CTX_INIT2(ii,jj,ctx,tab,num) \
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{ \
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for (i=0; i<ii; i++) \
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for (j=0; j<jj; j++) \
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{ \
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if ((img->type==I_SLICE)||(img->type==SI_SLICE)) biari_init_context (img, &(ctx[i][j]), &(tab ## _I[num][i][j][0])); \
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else biari_init_context (img, &(ctx[i][j]), &(tab ## _P[num][i][j][0])); \
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} \
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}
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#define BIARI_CTX_INIT1(jj,ctx,tab,num) \
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{ \
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for (j=0; j<jj; j++) \
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{ \
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if ((img->type==I_SLICE)||(img->type==SI_SLICE)) biari_init_context (img, &(ctx[j]), &(tab ## _I[num][0][j][0])); \
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else biari_init_context (img, &(ctx[j]), &(tab ## _P[num][0][j][0])); \
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} \
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}
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void
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init_contexts (struct img_par* img)
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{
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MotionInfoContexts* mc = img->currentSlice->mot_ctx;
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TextureInfoContexts* tc = img->currentSlice->tex_ctx;
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int i, j;
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//printf("%d -", img->model_number);
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//--- motion coding contexts ---
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BIARI_CTX_INIT2 (3, NUM_MB_TYPE_CTX, mc->mb_type_contexts, INIT_MB_TYPE, img->model_number);
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BIARI_CTX_INIT2 (2, NUM_B8_TYPE_CTX, mc->b8_type_contexts, INIT_B8_TYPE, img->model_number);
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BIARI_CTX_INIT2 (2, NUM_MV_RES_CTX, mc->mv_res_contexts, INIT_MV_RES, img->model_number);
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BIARI_CTX_INIT2 (2, NUM_REF_NO_CTX, mc->ref_no_contexts, INIT_REF_NO, img->model_number);
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BIARI_CTX_INIT1 ( NUM_DELTA_QP_CTX, mc->delta_qp_contexts, INIT_DELTA_QP, img->model_number);
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BIARI_CTX_INIT1 ( NUM_MB_AFF_CTX, mc->mb_aff_contexts, INIT_MB_AFF, img->model_number);
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BIARI_CTX_INIT1 ( NUM_TRANSFORM_SIZE_CTX, mc->transform_size_contexts, INIT_TRANSFORM_SIZE, img->model_number);
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//--- texture coding contexts ---
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BIARI_CTX_INIT1 ( NUM_IPR_CTX, tc->ipr_contexts, INIT_IPR, img->model_number);
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BIARI_CTX_INIT1 ( NUM_CIPR_CTX, tc->cipr_contexts, INIT_CIPR, img->model_number);
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BIARI_CTX_INIT2 (3, NUM_CBP_CTX, tc->cbp_contexts, INIT_CBP, img->model_number);
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BIARI_CTX_INIT2 (8, NUM_BCBP_CTX, tc->bcbp_contexts, INIT_BCBP, img->model_number);
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BIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_MAP_CTX, tc->map_contexts, INIT_MAP, img->model_number);
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BIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_LAST_CTX, tc->last_contexts, INIT_LAST, img->model_number);
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BIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_ONE_CTX, tc->one_contexts, INIT_ONE, img->model_number);
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BIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_ABS_CTX, tc->abs_contexts, INIT_ABS, img->model_number);
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BIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_MAP_CTX, tc->fld_map_contexts, INIT_FLD_MAP, img->model_number);
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BIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_LAST_CTX, tc->fld_last_contexts,INIT_FLD_LAST, img->model_number);
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}
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