diff options
Diffstat (limited to 'Src/h264dec/ldecod/src/context_ini.c')
| -rw-r--r-- | Src/h264dec/ldecod/src/context_ini.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/Src/h264dec/ldecod/src/context_ini.c b/Src/h264dec/ldecod/src/context_ini.c new file mode 100644 index 00000000..2ffcfeef --- /dev/null +++ b/Src/h264dec/ldecod/src/context_ini.c @@ -0,0 +1,123 @@ + +/*! + ************************************************************************************* + * \file context_ini.c + * + * \brief + * CABAC context initializations + * + * \author + * Main contributors (see contributors.h for copyright, address and affiliation details) + * - Detlev Marpe <marpe@hhi.de> + * - Heiko Schwarz <hschwarz@hhi.de> + ************************************************************************************** + */ + +#define CONTEXT_INI_C + +#include "defines.h" +#include "global.h" +#include "biaridecod.h" +#include "ctx_tables.h" + + +#define IBIARI_CTX_INIT2(ii,jj,ctx,tab,num, qp) \ +{ \ + for (i=0; i<ii; ++i) \ + for (j=0; j<jj; ++j) \ + { \ + biari_init_context (qp, &(ctx[i][j]), tab ## _I[num][i][j]); \ + } \ +} + +#define PBIARI_CTX_INIT2(ii,jj,ctx,tab,num, qp) \ +{ \ + for (i=0; i<ii; ++i) \ + for (j=0; j<jj; ++j) \ + { \ + biari_init_context (qp, &(ctx[i][j]), tab ## _P[num][i][j]); \ + } \ +} + + +#define IBIARI_CTX_INIT1(jj,ctx,tab,num, qp) \ +{ \ + for (j=0; j<jj; ++j) \ + { \ + biari_init_context (qp, &(ctx[j]), tab ## _I[num][0][j]); \ + } \ +} + + +#define PBIARI_CTX_INIT1(jj,ctx,tab,num, qp) \ +{ \ + { \ + for (j=0; j<jj; ++j) \ + { \ + biari_init_context (qp, &(ctx[j]), tab ## _P[num][0][j]); \ + } \ + } \ +} + +void init_contexts (Slice *currSlice) +{ + VideoParameters *p_Vid = currSlice->p_Vid; + MotionInfoContexts* mc = currSlice->mot_ctx; + TextureInfoContexts* tc = currSlice->tex_ctx; + int i, j; + int qp = imax(0, p_Vid->qp); + int model_number = currSlice->model_number; + + //printf("%d -", p_Vid->currentSlice->model_number); + + //--- motion coding contexts --- + if ((currSlice->slice_type == I_SLICE)||(currSlice->slice_type == SI_SLICE)) + { + IBIARI_CTX_INIT2 (3, NUM_MB_TYPE_CTX, mc->mb_type_contexts, INIT_MB_TYPE, model_number, qp); + IBIARI_CTX_INIT2 (2, NUM_B8_TYPE_CTX, mc->b8_type_contexts, INIT_B8_TYPE, model_number, qp); + IBIARI_CTX_INIT2 (2, NUM_MV_RES_CTX, mc->mv_res_contexts, INIT_MV_RES, model_number, qp); + IBIARI_CTX_INIT2 (2, NUM_REF_NO_CTX, mc->ref_no_contexts, INIT_REF_NO, model_number, qp); + IBIARI_CTX_INIT1 ( NUM_DELTA_QP_CTX, mc->delta_qp_contexts, INIT_DELTA_QP, model_number, qp); + IBIARI_CTX_INIT1 ( NUM_MB_AFF_CTX, mc->mb_aff_contexts, INIT_MB_AFF, model_number, qp); + + //--- texture coding contexts --- + IBIARI_CTX_INIT1 ( NUM_TRANSFORM_SIZE_CTX, tc->transform_size_contexts, INIT_TRANSFORM_SIZE, model_number, qp); + IBIARI_CTX_INIT1 ( NUM_IPR_CTX, tc->ipr_contexts, INIT_IPR, model_number, qp); + IBIARI_CTX_INIT1 ( NUM_CIPR_CTX, tc->cipr_contexts, INIT_CIPR, model_number, qp); + IBIARI_CTX_INIT2 (3, NUM_CBP_CTX, tc->cbp_contexts, INIT_CBP, model_number, qp); + IBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_BCBP_CTX, tc->bcbp_contexts, INIT_BCBP, model_number, qp); + IBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_MAP_CTX, tc->map_contexts[0], INIT_MAP, model_number, qp); +#if ENABLE_FIELD_CTX + IBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_MAP_CTX, tc->map_contexts[1], INIT_FLD_MAP, model_number, qp); + IBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_LAST_CTX, tc->last_contexts[1], INIT_FLD_LAST, model_number, qp); +#endif + IBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_LAST_CTX, tc->last_contexts[0], INIT_LAST, model_number, qp); + IBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_ONE_CTX, tc->one_contexts, INIT_ONE, model_number, qp); + IBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_ABS_CTX, tc->abs_contexts, INIT_ABS, model_number, qp); + } + else + { + PBIARI_CTX_INIT2 (3, NUM_MB_TYPE_CTX, mc->mb_type_contexts, INIT_MB_TYPE, model_number, qp); + PBIARI_CTX_INIT2 (2, NUM_B8_TYPE_CTX, mc->b8_type_contexts, INIT_B8_TYPE, model_number, qp); + PBIARI_CTX_INIT2 (2, NUM_MV_RES_CTX, mc->mv_res_contexts, INIT_MV_RES, model_number, qp); + PBIARI_CTX_INIT2 (2, NUM_REF_NO_CTX, mc->ref_no_contexts, INIT_REF_NO, model_number, qp); + PBIARI_CTX_INIT1 ( NUM_DELTA_QP_CTX, mc->delta_qp_contexts, INIT_DELTA_QP, model_number, qp); + PBIARI_CTX_INIT1 ( NUM_MB_AFF_CTX, mc->mb_aff_contexts, INIT_MB_AFF, model_number, qp); + + //--- texture coding contexts --- + PBIARI_CTX_INIT1 ( NUM_TRANSFORM_SIZE_CTX, tc->transform_size_contexts, INIT_TRANSFORM_SIZE, model_number, qp); + PBIARI_CTX_INIT1 ( NUM_IPR_CTX, tc->ipr_contexts, INIT_IPR, model_number, qp); + PBIARI_CTX_INIT1 ( NUM_CIPR_CTX, tc->cipr_contexts, INIT_CIPR, model_number, qp); + PBIARI_CTX_INIT2 (3, NUM_CBP_CTX, tc->cbp_contexts, INIT_CBP, model_number, qp); + PBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_BCBP_CTX, tc->bcbp_contexts, INIT_BCBP, model_number, qp); + PBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_MAP_CTX, tc->map_contexts[0], INIT_MAP, model_number, qp); +#if ENABLE_FIELD_CTX + PBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_MAP_CTX, tc->map_contexts[1], INIT_FLD_MAP, model_number, qp); + PBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_LAST_CTX, tc->last_contexts[1], INIT_FLD_LAST, model_number, qp); +#endif + PBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_LAST_CTX, tc->last_contexts[0], INIT_LAST, model_number, qp); + PBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_ONE_CTX, tc->one_contexts, INIT_ONE, model_number, qp); + PBIARI_CTX_INIT2 (NUM_BLOCK_TYPES, NUM_ABS_CTX, tc->abs_contexts, INIT_ABS, model_number, qp); + } +} + |