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New cabac context models with "rate"

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This commit is contained in:
Marko Viitanen 2019-03-27 12:38:19 +02:00
parent 3bdc8ac8d3
commit 36eab9c170
4 changed files with 271 additions and 428 deletions
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228
src/cabac.c
View file

@ -76,6 +76,7 @@ const uint8_t kvz_g_auc_renorm_table[32] =
6, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
};
const uint8_t kvz_tb_max[257] = { 0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
@ -271,6 +272,38 @@ void kvz_cabac_encode_bin_ep(cabac_data_t * const data, const uint32_t bin_value
}
}
// Import from VTM 4.0
void kvz_cabac_encode_aligned_bins_ep(cabac_data_t * const data, uint32_t bin_values, int num_bins)
{
uint32_t rem_bins = num_bins;
while (rem_bins > 0) {
//The process of encoding an EP bin is the same as that of coding a normal
//bin where the symbol ranges for 1 and 0 are both half the range:
//
// low = (low + range/2) << 1 (to encode a 1)
// low = low << 1 (to encode a 0)
//
// i.e.
// low = (low + (bin * range/2)) << 1
//
// which is equivalent to:
//
// low = (low << 1) + (bin * range)
//
// this can be generalised for multiple bins, producing the following expression:
//
unsigned bins_to_code = MIN(rem_bins, 8); //code bytes if able to take advantage of the system's byte-write function
unsigned bin_mask = (1 << bins_to_code) - 1;
unsigned new_bins = (num_bins >> (rem_bins - bins_to_code)) & bin_mask;
data->low = (data->low << bins_to_code) + (new_bins << 8); //range is known to be 256
rem_bins -= bins_to_code;
data->bits_left -= bins_to_code;
if (data->bits_left < 12) {
kvz_cabac_write(data);
}
}
}
/**
* \brief
*/
@ -278,6 +311,10 @@ void kvz_cabac_encode_bins_ep(cabac_data_t * const data, uint32_t bin_values, in
{
uint32_t pattern;
if (data->range == 256) {
kvz_cabac_encode_aligned_bins_ep(data, bin_values, num_bins);
return;
}
while (num_bins > 8) {
num_bins -= 8;
pattern = bin_values >> num_bins;
@ -332,198 +369,7 @@ void kvz_cabac_write_coeff_remain(cabac_data_t * const cabac, const uint32_t rem
}
void kvz_cabac_write_coeff_remain_encry(struct encoder_state_t * const state, cabac_data_t * const cabac,const uint32_t symbol, const uint32_t r_param, int32_t base_level)
{
int32_t codeNumber = (int32_t)symbol;
uint32_t length;
if (codeNumber < (3 << r_param)) {
length = codeNumber>>r_param;
CABAC_BINS_EP(cabac, (1 << (length + 1)) - 2 , length + 1, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP( (1<<(length+1))-2 , length+1);
uint32_t Suffix = (codeNumber%(1<<r_param));
if(!r_param)
CABAC_BINS_EP(cabac, Suffix, r_param, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(Suffix, r_param);
if(r_param==1) {
if(!(( base_level ==2 )&& (codeNumber==4 || codeNumber==5) ) ) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 1);
state->crypto_prev_pos = ( Suffix + ( state->crypto_prev_pos^key ) ) & 1;
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 1, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 1);
} else {
CABAC_BINS_EP(cabac, Suffix, 1, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(Suffix, 1);
}
}
else
if(r_param==2) {
if( base_level ==1) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 2);
state->crypto_prev_pos = ( Suffix + ( state->crypto_prev_pos^key ) ) & 3;
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 2, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 2);
} else
if( base_level ==2) {
if(codeNumber<=7 || codeNumber>=12) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 2);
state->crypto_prev_pos = ( Suffix + ( state->crypto_prev_pos^key ) ) & 3;
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 2, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 2);
}
else
if(codeNumber<10) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 1);
state->crypto_prev_pos = (( (Suffix&1) + ( state->crypto_prev_pos^key )) & 1);
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 2, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 2);
} else
CABAC_BINS_EP(cabac, Suffix, 2, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(Suffix, 2);
} else { //base_level=3
if(codeNumber<=7 || codeNumber>11) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 2);
state->crypto_prev_pos = (Suffix + ( state->crypto_prev_pos^key ) ) & 3;
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 2, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 2);
} else {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 1);
state->crypto_prev_pos = ((Suffix&2))+(( (Suffix&1) + ( state->crypto_prev_pos^key)) & 1);
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 2, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 2);
}
}
} else
if(r_param==3) {
if( base_level ==1) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 3);
state->crypto_prev_pos = ( Suffix + ( state->crypto_prev_pos^key ) ) & 7;
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 3, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 3);
}
else if( base_level ==2) {
if(codeNumber<=15 || codeNumber>23) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 3);
state->crypto_prev_pos = ( Suffix + ( state->crypto_prev_pos^key ) ) & 7;
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 3, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 3);
} else
if(codeNumber<=19){
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 2);
state->crypto_prev_pos = ((Suffix&4))+(( (Suffix&3) + (state->crypto_prev_pos^key )) & 3);
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 3, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 3);
} else
if(codeNumber<=21){
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 1);
state->crypto_prev_pos = 4+(( (Suffix&1) + ( state->crypto_prev_pos^key )) & 1);
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 3, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 3);
} else
CABAC_BINS_EP(cabac, Suffix, 3, "coeff_abs_level_remaining");
// m_pcBinIf->encodeBinsEP(Suffix, 3);
} else {//base_level=3
CABAC_BINS_EP(cabac, Suffix, 3, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(Suffix, 3);
if(codeNumber<=15 || codeNumber>23) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 3);
state->crypto_prev_pos = (Suffix + ( state->crypto_prev_pos^key ) ) & 7;
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 3, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 3);
} else
if(codeNumber<=19) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 2);
state->crypto_prev_pos = (( (Suffix&3) + ( state->crypto_prev_pos^key )) &3);
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 3, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 3);
} else
if(codeNumber<=23) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 1);
state->crypto_prev_pos = (Suffix&6)+(( (Suffix&1) + (state->crypto_prev_pos^key )) & 1);
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 3, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 3);
}
}
} else
if(r_param==4) {
if( base_level ==1) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 4);
state->crypto_prev_pos = ( Suffix + ( state->crypto_prev_pos^key ) ) & 15;
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 4, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 4);
} else
if( base_level ==2) {
if(codeNumber<=31 || codeNumber>47) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 4);
state->crypto_prev_pos = ( Suffix + ( state->crypto_prev_pos^key ) ) & 15;
CABAC_BINS_EP(cabac, state->crypto_prev_pos, r_param, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, r_param);
} else
if(codeNumber<=39) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 3);
state->crypto_prev_pos = (( (Suffix&7) + ( state->crypto_prev_pos^key )) & 7);
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 4, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 4);
} else
if(codeNumber<=43) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 2);
state->crypto_prev_pos = 8+(( (Suffix&3) + ( state->crypto_prev_pos^key )) & 3);
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 4, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 4);
} else
if(codeNumber<=45){
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 1);
state->crypto_prev_pos = 12+(( (Suffix&1) + ( state->crypto_prev_pos^key )) & 1);
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 4, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 4);
} else
CABAC_BINS_EP(cabac, Suffix, 4, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(Suffix, 4);
} else {//base_level=3
if(codeNumber<=31 || codeNumber>47) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 4);
state->crypto_prev_pos = (Suffix + ( state->crypto_prev_pos^key ) ) & 15;
CABAC_BINS_EP(cabac, state->crypto_prev_pos, r_param, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, r_param);
} else
if(codeNumber<=39) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 3);
state->crypto_prev_pos = (( (Suffix&7) + ( state->crypto_prev_pos^key )) & 7);
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 4, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 4);
} else
if(codeNumber<=43) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 2);
state->crypto_prev_pos = 8+(( (Suffix&3) + ( state->crypto_prev_pos^key )) & 3);
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 4, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 4);
} else
if(codeNumber<=47) {
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, 1);
state->crypto_prev_pos = (Suffix&14)+(( (Suffix&1) + (state->crypto_prev_pos^key )) & 1);
CABAC_BINS_EP(cabac, state->crypto_prev_pos, 4, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos, 4);
}
}
}
} else {
length = r_param;
codeNumber = codeNumber - ( 3 << r_param);
while (codeNumber >= (1<<length)) {
codeNumber -= (1<<(length));
++length;
}
CABAC_BINS_EP(cabac, (1 << (3 + length + 1 - r_param)) - 2, 3 + length + 1 - r_param, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP((1<<(COEF_REMAIN_BIN_REDUCTION+length+1-r_param))-2,COEF_REMAIN_BIN_REDUCTION+length+1-r_param);
uint32_t Suffix = codeNumber;
uint32_t key = kvz_crypto_get_key(state->crypto_hdl, length);
uint32_t mask = ( (1<<length ) -1 );
state->crypto_prev_pos = ( Suffix + ( state->crypto_prev_pos^key ) ) & mask;
CABAC_BINS_EP(cabac, state->crypto_prev_pos, length, "coeff_abs_level_remaining");
//m_pcBinIf->encodeBinsEP(m_prev_pos,length);
}
}
/**
* \brief
*/

30
src/cabac.h
View file

@ -56,28 +56,25 @@ typedef struct
cabac_ctx_t sao_type_idx_model;
cabac_ctx_t split_flag_model[9]; //!< \brief split flag context models
cabac_ctx_t qt_split_flag_model[6]; //!< \brief qt split flag context models
cabac_ctx_t bt_split_flag_model[12]; //!< \brief bt split flag context models
cabac_ctx_t intra_mode_model; //!< \brief intra mode context models
cabac_ctx_t intra_subpart_model[2]; //!< \brief intra sub part context models
cabac_ctx_t chroma_pred_model[3];
cabac_ctx_t inter_dir[5];
cabac_ctx_t trans_subdiv_model[3]; //!< \brief intra mode context models
cabac_ctx_t qt_cbf_model_luma[4];
cabac_ctx_t qt_cbf_model_cr[2];
cabac_ctx_t qt_cbf_model_cb[5];
cabac_ctx_t cu_qp_delta_abs[4];
cabac_ctx_t cu_qp_delta_abs[3];
cabac_ctx_t part_size_model[4];
cabac_ctx_t cu_sig_coeff_group_model[8];
cabac_ctx_t cu_sig_model_luma[3][20];
cabac_ctx_t cu_sig_model_luma[3][18];
cabac_ctx_t cu_sig_model_chroma[3][12];
cabac_ctx_t cu_parity_flag_model_luma[21];
cabac_ctx_t cu_parity_flag_model_chroma[11];
cabac_ctx_t cu_gtx_flag_model_luma[2][21];
cabac_ctx_t cu_gtx_flag_model_chroma[2][11];
cabac_ctx_t cu_ctx_last_y_luma[19];
cabac_ctx_t cu_ctx_last_y_chroma[19];
cabac_ctx_t cu_ctx_last_x_luma[19];
cabac_ctx_t cu_ctx_last_x_chroma[19];
cabac_ctx_t cu_ctx_last_y_luma[25];
cabac_ctx_t cu_ctx_last_y_chroma[4];
cabac_ctx_t cu_ctx_last_x_luma[25];
cabac_ctx_t cu_ctx_last_x_chroma[4];
cabac_ctx_t cu_pred_mode_model;
cabac_ctx_t cu_skip_flag_model[3];
cabac_ctx_t cu_merge_idx_ext_model;
@ -87,8 +84,7 @@ typedef struct
cabac_ctx_t cu_ref_pic_model[2];
cabac_ctx_t mvp_idx_model[2];
cabac_ctx_t cu_qt_root_cbf_model;
cabac_ctx_t transform_skip_model_luma;
cabac_ctx_t transform_skip_model_chroma;
cabac_ctx_t sig_coeff_group_model[8];
} ctx;
} cabac_data_t;
@ -130,8 +126,8 @@ void kvz_cabac_write_unary_max_symbol_ep(cabac_data_t *data, unsigned int symbol
#define CTX_GET_STATE(ctx) ( (ctx)->state[0]+(ctx)->state[1] )
#define CTX_STATE(ctx) ( CTX_GET_STATE(ctx)>>8 )
#define CTX_SET_STATE(ctx, state) {\
(ctx)->state[0]=(state >> 1) & CTX_MASK_0;\
(ctx)->state[1]=(state >> 1) & CTX_MASK_1;\
(ctx)->state[0]=(state >> 1) & (int)CTX_MASK_0;\
(ctx)->state[1]=(state >> 1) & (int)CTX_MASK_1;\
}
#define CTX_MPS(ctx) (CTX_STATE(ctx)>>7)
#define CTX_LPS(ctx,range) ( ((((CTX_STATE(ctx)&0x80) ? (CTX_STATE(ctx)^0xff) : (CTX_STATE(ctx))) >>2)*(range>>5)>>1)+4 )
@ -139,11 +135,11 @@ void kvz_cabac_write_unary_max_symbol_ep(cabac_data_t *data, unsigned int symbol
int rate0 = (ctx)->rate >> 4;\
int rate1 = (ctx)->rate & 15;\
\
(ctx)->state[0] -= ((ctx)->state[0] >> rate0) & CTX_MASK_0;\
(ctx)->state[1] -= ((ctx)->state[1] >> rate1) & CTX_MASK_1;\
(ctx)->state[0] -= ((ctx)->state[0] >> rate0) & (int)CTX_MASK_0;\
(ctx)->state[1] -= ((ctx)->state[1] >> rate1) & (int)CTX_MASK_1;\
if (bin) {\
(ctx)->state[0] += (0x7fffu >> rate0) & CTX_MASK_0;\
(ctx)->state[1] += (0x7fffu >> rate1) & CTX_MASK_1;\
(ctx)->state[0] += (0x7fffu >> rate0) & (int)CTX_MASK_0;\
(ctx)->state[1] += (0x7fffu >> rate1) & (int)CTX_MASK_1;\
}\
}

430
src/context.c
View file

@ -23,223 +23,238 @@
#include "tables.h"
static const uint8_t INIT_SAO_MERGE_FLAG[3] = { 153, 153, 153 };
static const uint8_t INIT_SAO_TYPE_IDX[3] = { 160, 185, 200 };
static const uint8_t INIT_QT_ROOT_CBF[3][1] = {
{ 79, },
{ 79, },
{ CNU, },
};
static const uint8_t INIT_MVP_IDX[3][2] = {
{ 168, CNU, },
{ 168, CNU, },
{ CNU, CNU, },
};
static const uint8_t INIT_REF_PIC[3][2] = {
{ 153, 153 },
{ 153, 153 },
{ CNU, CNU },
};
static const uint8_t INIT_MVD[3][2] = {
{ 169, 198, },
{ 140, 198, },
{ CNU, CNU, },
};
static const uint8_t INIT_MERGE_FLAG_EXT[3][1] = {
{ 154, },
{ 110, },
{ CNU, },
};
// TODO: update usage
static const uint8_t INIT_MERGE_IDX_EXT[3][5] = {
{ 137, CNU, CNU, CNU, CNU, },
{ 122, CNU, CNU, CNU, CNU, },
{ CNU, CNU, CNU, CNU, CNU, },
};
static const uint8_t INIT_CU_TRANSQUANT_BYPASS[3][1] = {
{ 154, },
{ 154, },
{ 154, },
};
static const uint8_t INIT_SKIP_FLAG[3][3] = {
{ 197, 185, 201, },
{ 197, 185, 201, },
{ CNU, CNU, CNU, },
};
static const uint8_t INIT_PRED_MODE[3][1] = {
{ 134, },
{ 149, },
{ CNU, },
};
static const uint8_t INIT_PART_SIZE[3][4] = {
{ 154, 139, 154, 154, },
{ 154, 139, 154, 154, },
{ 184, CNU, CNU, CNU, },
};
static const uint8_t INIT_SPLIT_FLAG[3][9] = {
static const uint8_t INIT_SPLIT_FLAG[4][9] = {
{ 122, 124, 141, 108, 125, 156, 138, 126, 143, },
{ 93, 139, 171, 124, 125, 141, 139, 141, 158, },
{ 138, 154, 172, 124, 140, 142, 154, 127, 175, },
{ 9, 13, 8, 8, 13, 12, 5, 10, 12, },
};
static const uint8_t INIT_QT_SPLIT_FLAG[3][6] = {
static const uint8_t INIT_QT_SPLIT_FLAG[4][6] = {
{ 138, 140, 142, 136, 138, 140, },
{ 139, 126, 142, 107, 138, 125, },
{ 139, 125, 127, 136, 153, 126, },
{ 0, 8, 8, 12, 12, 8, },
};
static const uint8_t INIT_SKIP_FLAG[4][3] = {
{ 197, 214, 216, },
{ 197, 198, 185, },
{ 40, 138, 154, },
{ 5, 8, 8, },
};
static const uint8_t INIT_MERGE_FLAG_EXT[4][1] = {
{ 111, },
{ 111, },
{ 153, },
{ 5, },
};
static const uint8_t INIT_BT_SPLIT_FLAG[3][12] = {
{ 107, 139, 126, 154, 154, 154, 154, 154, 154, 154, 154, 154, },
{ 107, 139, 126, 154, 154, 154, 154, 154, 154, 154, 154, 154, },
{ 139, 141, 157, 154, 154, 154, 154, 154, 154, 154, 154, 154, },
static const uint8_t INIT_MERGE_IDX_EXT[4][1] = {
{ 138, },
{ 154, },
{ 153, },
{ 8, },
};
static const uint8_t INIT_INTRA_PRED_MODE[3] = {
154, 154, 170
static const uint8_t INIT_PART_SIZE[4][4] = {
{ CNU, CNU, CNU, CNU,},
{ CNU, CNU, CNU, CNU,},
{ CNU, CNU, CNU, CNU,},
{ DWS, DWS, DWS, DWS, }
};
static const uint8_t INIT_INTRA_SUBPART_MODE[3][2] = {
{ 152, 154, },
{ 166, 154, },
{ 152, 154, },
static const uint8_t INIT_PRED_MODE[4][2] = {
{ 192, 168, },
{ 165, 139, },
{ CNU, CNU, },
{ 5, 2, },
};
static const uint8_t INIT_CHROMA_PRED_MODE[3][3] = {
static const uint8_t INIT_INTRA_PRED_MODE[4] = {
154, 154, 170, 6
};
static const uint8_t INIT_CHROMA_PRED_MODE[4][3] = {
{ 137, 139, 140,},
{ 138, 139, 169,},
{ 154, 139, 154,},
{ 5, 8, 9,},
};
static const uint8_t INIT_INTER_DIR[3][5] = {
{ 95, 79, 63, 31, 31, },
{ 95, 79, 63, 31, 31, },
static const uint8_t INIT_CU_QP_DELTA_ABS[4][3] = {
{ 154, 154, 154,},
{ 154, 154, 154,},
{ 154, 154, 154,},
{ DWS, DWS, DWS, }
};
static const uint8_t INIT_INTER_DIR[4][5] = {
{ 111, 125, 110, 94, 192, },
{ 126, 111, 110, 94, 208, },
{ CNU, CNU, CNU, CNU, CNU, },
{ 0, 0, 4, 5, 0, },
};
static const uint8_t INIT_TRANS_SUBDIV_FLAG[3][3] = {
{ 224, 167, 122 },
{ 124, 138, 94 },
{ 153, 138, 138 },
static const uint8_t INIT_REF_PIC[4][2] = {
{ 125, 139, },
{ 138, 168, },
{ CNU, CNU, },
{ 4, 5, },
};
static const uint8_t INIT_QT_CBF[3][15] = {
static const uint8_t INIT_MVD[4][2] = {
{ 169, 183, },
{ 155, 154, },
{ 141, 156, },
{ 9, 5, },
};
static const uint8_t INIT_QT_ROOT_CBF[4][1] = {
{ 109, },
{ 95, },
{ 110, },
{ 4, },
};
static const uint8_t INIT_QT_CBF[4][15] = {
{ 141, 127, 139, 140, 163, 154, CNU, CNU, CNU, 161, 154,},
{ 142, 127, 139, 140, 164, 154, CNU, CNU, CNU, 192, 154,},
{ CNU, 111, 124, 111, 109, CNU, CNU, CNU, CNU, 151, 155,},
{ 1, 5, 9, 8, 5, 8, DWS, DWS, DWS, 5, 5, },
};
static const uint8_t INIT_CU_QP_DELTA_ABS[3][2] = {
{ 154, 154 },
{ 154, 154 },
{ 154, 154 },
static const uint8_t INIT_SIG_COEFF_GROUP[4][8] = {
{ 105, 155, 91, 155, CNU, CNU, CNU, CNU, },
{ 106, 156, 90, 141, CNU, CNU, CNU, CNU, },
{ 107, 158, 76, 127, CNU, CNU, CNU, CNU, },
{ 8, 5, 5, 8, DWS, DWS,DWS, DWS,},
};
static const uint8_t INIT_SIG_CG_FLAG[3][8] = {
{ 121, 140, 61, 154, 122, 143, 91, 141, },
{ 121, 140, 61, 154, 78, 111, 60, 140, },
{ 91, 171, 134, 141, 135, 155, 104, 139, },
};
static const uint8_t INIT_SIG_FLAG[6][3][20] = {
static const uint8_t INIT_SIG_FLAG[6][4][18] = {
{
{ 106, 167, 182, 124, 139, 169, 134, 167, 197, 183, 183, 184, 209, 198, 168, 168, 183, 170, CNU, CNU, },
{ 135, 152, 167, 153, 168, 140, 149, 182, 153, 183, 154, 155, 180, 198, 197, 183, 169, 170, CNU, CNU, },
{ 121, 138, 124, 139, 125, 111, 135, 139, 154, 140, 155, 127, 107, 185, 169, 170, 156, 143, CNU, CNU, },
{ 88, 166, 152, 182, 168, 154, 0, 167, 182, 168, 183, 155, 193, 213, 183, 183, 169, 185, },
{ 132, 152, 167, 168, 183, 140, 177, 182, 168, 154, 169, 155, 180, 213, 183, 169, 184, 156, },
{ 89, 138, 153, 139, 154, 140, 134, 139, 139, 140, 140, 141, 137, 170, 169, 170, 141, 157, },
{ 12, 9, 9, 9, 9, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 9, },
},
{
{ 177, 196, 153, 124, 198, 183, 166, 213, 226, 198, 198, 156, },
{ 134, 168, 168, 154, 169, 199, 166, 214, 227, 229, 185, 142, },
{ 149, 168, 153, 111, 140, 126, 182, 200, 111, 143, 142, 158, },
{ 72, 167, 153, 168, 154, 155, 180, 199, 183, 199, 199, 186, },
{ 133, 138, 153, 139, 154, 140, 181, 229, 169, 229, 170, 157, },
{ 43, 153, 168, 169, 154, 155, 152, 215, 155, 201, 171, 143, },
{ 9, 9, 12, 9, 13, 13, 5, 5, 8, 8, 8, 9, },
},
{
{ 181, 127, 173, 201, 187, 173, 226, 173, 188, 202, 173, 188, 196, 223, 237, 223, 221, 223, CNU, CNU, },
{ 123, 142, 202, 157, 157, 188, 138, 158, 203, 173, 158, 174, 182, 223, 223, 223, 206, 237, CNU, CNU, },
{ 108, 157, 173, 158, 218, 189, 123, 159, 159, 174, 189, 204, 79, 223, 223, 207, 253, 191, CNU, CNU, },
{ 152, 156, 201, 186, 186, 187, 182, 248, 188, 232, 188, 205, 182, 223, 223, 223, 223, 223, },
{ 123, 142, 157, 172, 172, 218, 138, 249, 248, 248, 219, 223, 139, 223, 223, 223, 223, 223, },
{ 93, 142, 157, 143, 188, 175, 138, 238, 205, 238, 253, 237, 139, 223, 223, 223, 223, 253, },
{ 9, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 8, 0, 0, 0, 0, 0, },
},
{
{ 210, 170, 143, 143, 201, 244, 182, 223, 223, 223, 159, 223, },
{ 167, 155, 158, 186, 127, 158, 197, 223, 223, 223, 206, 237, },
{ 137, 158, 157, 187, 204, 159, 185, 223, 238, 220, 253, 237, },
{ 182, 171, 143, 158, 172, 189, 183, 223, 223, 223, 223, 223, },
{ 168, 156, 173, 216, 172, 219, 169, 223, 223, 223, 223, 223, },
{ 152, 173, 157, 187, 204, 253, 170, 223, 223, 223, 223, 223, },
{ 8, 9, 12, 8, 8, 8, 4, 0, 2, 2, 2, 2, },
},
{
{ 137, 142, 159, 158, 187, 159, 241, 174, 174, 159, 159, 203, 210, 223, 223, 223, 223, 223, CNU, CNU, },
{ 123, 157, 174, 143, 143, 203, 138, 159, 189, 159, 173, 174, 196, 223, 223, 223, 223, 223, CNU, CNU, },
{ 107, 143, 218, 173, 218, 189, 63, 219, 189, 175, 189, 204, 63, 223, 223, 223, 253, 191, CNU, CNU, },
{ 123, 173, 223, 191, 232, 251, 212, 223, 223, 236, 206, 223, 192, 223, 223, 223, 223, 223, },
{ 123, 175, 223, 175, 218, 223, 138, 223, 223, 223, 222, 223, 196, 223, 223, 223, 223, 223, },
{ 107, 174, 223, 238, 251, 223, 63, 223, 223, 238, 223, 238, 12, 223, 223, 223, 223, 223, },
{ 8, 8, 4, 8, 8, 8, 8, 0, 0, 4, 8, 5, 4, 2, 2, 2, 2, 1, },
},
{
{ 196, 199, 143, 172, 158, 203, 196, 223, 223, 223, 223, 223, },
{ 167, 155, 159, 157, 157, 158, 182, 223, 223, 223, 223, 223, },
{ 181, 159, 143, 232, 143, 173, 169, 237, 223, 223, 238, 253, },
{ 167, 201, 223, 248, 219, 223, 181, 223, 223, 223, 223, 223, },
{ 167, 171, 223, 175, 248, 223, 152, 223, 223, 223, 223, 223, },
{ 166, 234, 223, 236, 248, 223, 108, 223, 223, 223, 223, 223, },
{ 8, 8, 5, 8, 8, 8, 5, 1, 2, 2, 2, 2, },
}
};
static const uint8_t INIT_PARITY_FLAG[2][3][21] =
static const uint8_t INIT_PARITY_FLAG[2][4][21] =
{
{
{ 162, 134, 136, 167, 153, 138, 135, 167, 182, 168, 168, 150, 182, 153, 168, 110, 180, 168, 139, 168, 154, },
{ 133, 163, 151, 167, 138, 168, 149, 152, 153, 153, 124, 150, 153, 153, 168, 139, 166, 168, 168, 139, 139, },
{ 134, 120, 152, 123, 153, 153, 136, 123, 153, 168, 154, 152, 153, 153, 124, 139, 123, 168, 139, 154, 139, },
{ 121, 105, 136, 152, 138, 183, 90, 122, 167, 153, 168, 135, 152, 153, 168, 139, 151, 153, 139, 168, 154, },
{ 121, 119, 136, 137, 138, 153, 104, 122, 138, 153, 139, 106, 138, 153, 168, 139, 137, 153, 168, 139, 139, },
{ 121, 135, 137, 152, 138, 153, 91, 137, 138, 153, 139, 151, 138, 153, 139, 139, 138, 168, 139, 154, 139, },
{ 8, 9, 12, 13, 13, 13, 10, 13, 13, 13, 13, 13, 13, 13, 13, 13, 10, 13, 13, 13, 13, },
},
{
{ 57, 192, 194, 225, 153, 139, 209, 168, 213, 123, 95, },
{ 147, 164, 137, 153, 124, 153, 210, 183, 183, 154, 139, },
{ 134, 121, 182, 183, 138, 183, 198, 154, 154, 124, 154, },
{ 151, 120, 152, 138, 153, 153, 136, 168, 154, 168, 154, },
{ 135, 120, 137, 138, 138, 153, 136, 153, 168, 139, 154, },
{ 136, 135, 152, 153, 138, 153, 136, 168, 154, 139, 154, },
{ 8, 10, 12, 12, 13, 13, 10, 10, 13, 13, 13, },
}
};
static const uint8_t INIT_GTX_FLAG[4][3][21] =
static const uint8_t INIT_GTX_FLAG[4][4][21] =
{
{
{ 59, 57, 59, 133, 164, 165, 117, 147, 134, 150, 137, 133, 163, 121, 166, 167, 163, 135, 136, 181, 139, },
{ 45, 57, 58, 44, 149, 91, 73, 89, 105, 91, 122, 74, 105, 121, 122, 138, 119, 106, 107, 152, 139, },
{ 135, 43, 119, 90, 76, 107, 74, 75, 106, 77, 93, 105, 91, 122, 93, 94, 150, 136, 123, 153, 125, },
{ 31, 73, 118, 75, 152, 109, 42, 44, 105, 107, 109, 0, 119, 136, 152, 124, 118, 136, 138, 153, 140, },
{ 14, 116, 86, 119, 106, 152, 0, 72, 120, 151, 138, 116, 90, 107, 152, 153, 104, 107, 123, 153, 154, },
{ 90, 72, 119, 135, 137, 138, 43, 60, 106, 137, 109, 58, 106, 108, 109, 124, 121, 138, 139, 154, 155, },
{ 4, 1, 8, 8, 4, 2, 5, 9, 9, 8, 9, 9, 9, 9, 8, 9, 9, 8, 9, 8, 8, },
},
{
{ 133, 3, 14, 120, 135, 91, 179, 103, 194, 94, 111, },
{ 118, 102, 134, 135, 122, 123, 163, 120, 122, 153, 169, },
{ 195, 88, 74, 105, 152, 138, 120, 90, 107, 139, 184, },
{ 119, 101, 134, 151, 107, 123, 118, 122, 124, 140, 155, },
{ 117, 0, 90, 106, 92, 93, 147, 136, 138, 154, 140, },
{ 194, 40, 120, 122, 122, 138, 103, 121, 153, 154, 155, },
{ 2, 5, 8, 8, 8, 6, 6, 8, 8, 8, 7, },
},
{
{ 3, 3, 103, 119, 91, 151, 3, 148, 194, 152, 138, 147, 164, 166, 167, 168, 133, 180, 196, 139, 169, },
{ 3, 3, 118, 120, 106, 152, 3, 119, 121, 122, 153, 118, 135, 166, 138, 139, 148, 151, 182, 168, 184, },
{ 132, 102, 104, 121, 92, 93, 104, 106, 122, 123, 94, 105, 137, 153, 139, 95, 121, 123, 139, 154, 126, },
{ 43, 177, 181, 168, 154, 170, 133, 167, 139, 154, 155, 164, 153, 154, 169, 155, 181, 183, 169, 185, 186, },
{ 101, 133, 137, 153, 139, 140, 134, 138, 139, 154, 155, 136, 153, 154, 140, 170, 138, 154, 155, 170, 186, },
{ 134, 120, 123, 153, 139, 140, 92, 124, 154, 125, 111, 138, 154, 140, 155, 141, 154, 140, 185, 171, 143, },
{ 8, 5, 9, 9, 12, 9, 9, 10, 13, 12, 10, 9, 10, 10, 10, 10, 8, 9, 8, 8, 10, },
},
{
{ 3, 3, 176, 193, 137, 181, 161, 137, 183, 155, 111, },
{ 3, 3, 134, 137, 123, 124, 147, 167, 169, 199, 156, },
{ 147, 73, 164, 151, 107, 109, 120, 152, 140, 185, 111, },
{ 0, 178, 153, 154, 140, 140, 196, 170, 186, 157, 188, },
{ 0, 135, 153, 139, 125, 140, 182, 155, 156, 142, 159, },
{ 163, 136, 153, 154, 125, 140, 183, 170, 201, 187, 174, },
{ 6, 9, 10, 12, 12, 10, 5, 9, 8, 8, 9, },
}
};
static const uint8_t INIT_LAST[3][38] = {
{ 125, 110, 124, 110, 95, 94, 125, 111, 111, 79, 125, 126, 111, 111, 79, 126, 111, 111, 79,
108, 123, 93, 154, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU },
{ 125, 110, 94, 110, 95, 79, 125, 111, 110, 78, 110, 111, 111, 95, 94, 111, 111, 95, 94,
108, 123, 108, 154, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU },
{ 110, 110, 124, 125, 140, 153, 125, 127, 140, 109, 111, 143, 127, 111, 79, 143, 127, 111, 79,
108, 123, 63, 154, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU },
static const uint8_t INIT_LAST_X[4][29] = {
{ 111, 111, 110, 111, 111, 139, 111, 126, 111, 139, 126, 126, 111, 111, 169, 154, 111, 110, 110, 139, CNU, CNU, CNU, CNU, CNU, 122, 124, 63, CNU,},
{ 125, 110, 109, 125, 125, 123, 111, 111, 95, 123, 126, 111, 110, 95, 169, 154, 140, 139, 139, 138, CNU, CNU, CNU, CNU, CNU, 138, 123, 92, CNU,},
{ 125, 140, 124, 111, 111, 109, 111, 126, 125, 123, 111, 141, 111, 125, 79, 155, 142, 170, 140, 183, CNU, CNU, CNU, CNU, CNU, 138, 108, 47, CNU,},
{ 8, 5, 5, 5, 4, 4, 5, 4, 4, 0, 5, 1, 0, 0, 0, 1, 1, 0, 0, 0, DWS, DWS, DWS, DWS, DWS, 2, 1, 1, DWS, },
};
static const uint8_t INIT_TRANSFORMSKIP_FLAG[3][2] =
{
{ 139, 139},
{ 139, 139},
{ 139, 139},
static const uint8_t INIT_LAST_Y[4][29] = {
{ 125, 125, 139, 125, 111, 139, 111, 111, 110, 110, 140, 126, 125, 125, 140, 139, 111, 110, 124, 181, CNU, CNU, CNU, CNU, CNU, 122, 124, 123, CNU,},
{ 95, 95, 109, 110, 110, 108, 125, 111, 124, 123, 140, 111, 110, 124, 139, 125, 126, 110, 124, 182, CNU, CNU, CNU, CNU, CNU, 108, 123, 121, CNU,},
{ 110, 110, 109, 125, 111, 123, 111, 126, 95, 108, 111, 127, 111, 95, 78, 169, 157, 141, 125, 138, CNU, CNU, CNU, CNU, CNU, 123, 123, 91, CNU,},
{ 8, 5, 8, 5, 5, 4, 5, 5, 4, 0, 5, 5, 1, 0, 0, 1, 4, 1, 0, 0, DWS, DWS, DWS, DWS, DWS, 2, 2, 2, DWS,},
};
static const uint8_t INIT_MVP_IDX[4][1] = {
{ 153, },
{ 168, },
{ 168, },
{ 10, },
};
static const uint8_t INIT_SAO_MERGE_FLAG[4] = { 47, 244, 199, 0 };
static const uint8_t INIT_SAO_TYPE_IDX[4] = { 47, 95, 95, 0 };
static const uint8_t INIT_CU_TRANSQUANT_BYPASS[4][1] = {
{ 154, },
{ 154, },
{ 154, },
{ DWS, }
};
static const uint8_t INIT_INTRA_SUBPART_MODE[4][2] = {
{ 152, 154, },
{ 166, 154, },
{ 152, 154, },
{ 8, 5, },
};
static const uint16_t g_inistateToCount[128] = {
614, 647, 681, 718, 756, 797, 839, 884, 932, 982, 1034, 1089, 1148, 1209, 1274, 1342,
@ -256,7 +271,7 @@ static const uint16_t g_inistateToCount[128] = {
/**
* \brief Initialize struct cabac_ctx.
*/
void kvz_ctx_init(cabac_ctx_t *ctx, uint32_t qp, uint32_t init_value)
void kvz_ctx_init(cabac_ctx_t *ctx, uint32_t qp, uint32_t init_value, uint8_t rate)
{
int slope = (init_value >> 4) * 5 - 45;
int offset = ((init_value & 15) << 3) - 16;
@ -266,13 +281,9 @@ void kvz_ctx_init(cabac_ctx_t *ctx, uint32_t qp, uint32_t init_value)
ctx->state[0] = p1 & CTX_MASK_0;
ctx->state[1] = p1 & CTX_MASK_1;
/*
if (init_state >= 64) {
ctx->uc_state = ((init_state - 64) << 1) + 1;
} else {
ctx->uc_state = (63 - init_state) << 1;
}
*/
CTX_SET_LOG2_WIN(ctx, rate);
}
/**
@ -287,100 +298,89 @@ void kvz_init_contexts(encoder_state_t *state, int8_t QP, int8_t slice)
uint16_t i, ii;
// Initialize contexts
kvz_ctx_init(&cabac->ctx.transform_skip_model_luma, QP, INIT_TRANSFORMSKIP_FLAG[slice][0]);
kvz_ctx_init(&cabac->ctx.transform_skip_model_chroma, QP, INIT_TRANSFORMSKIP_FLAG[slice][1]);
kvz_ctx_init(&cabac->ctx.sao_merge_flag_model, QP, INIT_SAO_MERGE_FLAG[slice], INIT_SAO_MERGE_FLAG[3]);
kvz_ctx_init(&cabac->ctx.sao_type_idx_model, QP, INIT_SAO_TYPE_IDX[slice], INIT_SAO_TYPE_IDX[3]);
kvz_ctx_init(&cabac->ctx.sao_merge_flag_model, QP, INIT_SAO_MERGE_FLAG[slice]);
kvz_ctx_init(&cabac->ctx.sao_type_idx_model, QP, INIT_SAO_TYPE_IDX[slice]);
kvz_ctx_init(&cabac->ctx.cu_merge_flag_ext_model, QP, INIT_MERGE_FLAG_EXT[slice][0], INIT_MERGE_FLAG_EXT[3][0]);
kvz_ctx_init(&cabac->ctx.cu_merge_idx_ext_model, QP, INIT_MERGE_IDX_EXT[slice][0], INIT_MERGE_IDX_EXT[3][0]);
kvz_ctx_init(&cabac->ctx.cu_pred_mode_model, QP, INIT_PRED_MODE[slice][0], INIT_PRED_MODE[3][0]);
kvz_ctx_init(&cabac->ctx.cu_transquant_bypass, QP, INIT_CU_TRANSQUANT_BYPASS[slice][0], INIT_CU_TRANSQUANT_BYPASS[3][0]);
kvz_ctx_init(&cabac->ctx.cu_merge_flag_ext_model, QP, INIT_MERGE_FLAG_EXT[slice][0]);
kvz_ctx_init(&cabac->ctx.cu_merge_idx_ext_model, QP, INIT_MERGE_IDX_EXT[slice][0]);
kvz_ctx_init(&cabac->ctx.cu_pred_mode_model, QP, INIT_PRED_MODE[slice][0]);
kvz_ctx_init(&cabac->ctx.cu_transquant_bypass, QP, INIT_CU_TRANSQUANT_BYPASS[slice][0]);
kvz_ctx_init(&cabac->ctx.intra_mode_model, QP, INIT_INTRA_PRED_MODE[slice], INIT_INTRA_PRED_MODE[3]);
kvz_ctx_init(&cabac->ctx.cu_skip_flag_model[0], QP, INIT_SKIP_FLAG[slice][0]);
kvz_ctx_init(&cabac->ctx.cu_skip_flag_model[1], QP, INIT_SKIP_FLAG[slice][1]);
kvz_ctx_init(&cabac->ctx.cu_skip_flag_model[2], QP, INIT_SKIP_FLAG[slice][2]);
kvz_ctx_init(&cabac->ctx.intra_subpart_model[0], QP, INIT_INTRA_SUBPART_MODE[slice][0]);
kvz_ctx_init(&cabac->ctx.intra_subpart_model[1], QP, INIT_INTRA_SUBPART_MODE[slice][1]);
kvz_ctx_init(&cabac->ctx.intra_subpart_model[0], QP, INIT_INTRA_SUBPART_MODE[slice][0], INIT_INTRA_SUBPART_MODE[3][0]);
kvz_ctx_init(&cabac->ctx.intra_subpart_model[1], QP, INIT_INTRA_SUBPART_MODE[slice][1], INIT_INTRA_SUBPART_MODE[3][1]);
for (i = 0; i < 3; i++) {
kvz_ctx_init(&cabac->ctx.cu_skip_flag_model[i], QP, INIT_SKIP_FLAG[slice][i], INIT_SKIP_FLAG[3][i]);
kvz_ctx_init(&cabac->ctx.chroma_pred_model[i], QP, INIT_CHROMA_PRED_MODE[slice][i], INIT_CHROMA_PRED_MODE[3][i]);
}
for (i = 0; i < 6; i++) {
kvz_ctx_init(&cabac->ctx.qt_split_flag_model[i], QP, INIT_QT_SPLIT_FLAG[slice][i]);
kvz_ctx_init(&cabac->ctx.qt_split_flag_model[i], QP, INIT_QT_SPLIT_FLAG[slice][i], INIT_QT_SPLIT_FLAG[3][i]);
}
for (i = 0; i < 8; i++) {
kvz_ctx_init(&cabac->ctx.sig_coeff_group_model[i], QP, INIT_SIG_COEFF_GROUP[slice][i], INIT_SIG_COEFF_GROUP[3][i]);
}
for (i = 0; i < 9; i++) {
kvz_ctx_init(&cabac->ctx.split_flag_model[i], QP, INIT_SPLIT_FLAG[slice][i]);
kvz_ctx_init(&cabac->ctx.split_flag_model[i], QP, INIT_SPLIT_FLAG[slice][i], INIT_SPLIT_FLAG[3][i]);
}
// BT split flag init
for (i = 0; i < 12; i++) {
kvz_ctx_init(&cabac->ctx.bt_split_flag_model[i], QP, INIT_BT_SPLIT_FLAG[slice][i]);
}
kvz_ctx_init(&cabac->ctx.intra_mode_model, QP, INIT_INTRA_PRED_MODE[slice]);
for (i = 0; i < 3; i++) {
kvz_ctx_init(&cabac->ctx.chroma_pred_model[i], QP, INIT_CHROMA_PRED_MODE[slice][i]);
}
//TODO: ignore P/B contexts on intra frame
kvz_ctx_init(&cabac->ctx.cu_qt_root_cbf_model, QP, INIT_QT_ROOT_CBF[slice][0]);
kvz_ctx_init(&cabac->ctx.cu_qt_root_cbf_model, QP, INIT_QT_ROOT_CBF[slice][0], INIT_QT_ROOT_CBF[3][0]);
kvz_ctx_init(&cabac->ctx.cu_mvd_model[0], QP, INIT_MVD[slice][0]);
kvz_ctx_init(&cabac->ctx.cu_mvd_model[1], QP, INIT_MVD[slice][1]);
kvz_ctx_init(&cabac->ctx.cu_ref_pic_model[0], QP, INIT_REF_PIC[slice][0]);
kvz_ctx_init(&cabac->ctx.cu_ref_pic_model[1], QP, INIT_REF_PIC[slice][1]);
kvz_ctx_init(&cabac->ctx.mvp_idx_model[0], QP, INIT_MVP_IDX[slice][0]);
kvz_ctx_init(&cabac->ctx.mvp_idx_model[1], QP, INIT_MVP_IDX[slice][1]);
for (i = 0; i < 2; i++) {
kvz_ctx_init(&cabac->ctx.qt_cbf_model_cr[i], QP, INIT_QT_CBF[slice][i + 9], INIT_QT_CBF[3][i + 9]);
kvz_ctx_init(&cabac->ctx.cu_mvd_model[i], QP, INIT_MVD[slice][i], INIT_MVD[3][i]);
kvz_ctx_init(&cabac->ctx.cu_ref_pic_model[i], QP, INIT_REF_PIC[slice][i], INIT_REF_PIC[3][i]);
kvz_ctx_init(&cabac->ctx.mvp_idx_model[i], QP, INIT_MVP_IDX[slice][i], INIT_MVP_IDX[3][i]);
kvz_ctx_init(&cabac->ctx.cu_qp_delta_abs[0], QP, INIT_CU_QP_DELTA_ABS[slice][0]);
kvz_ctx_init(&cabac->ctx.cu_qp_delta_abs[1], QP, INIT_CU_QP_DELTA_ABS[slice][1]);
}
for (i = 0; i < 3; i++) {
kvz_ctx_init(&cabac->ctx.cu_qp_delta_abs[i], QP, INIT_CU_QP_DELTA_ABS[slice][i], INIT_CU_QP_DELTA_ABS[3][i]);
}
for (i = 0; i < 4; i++) {
kvz_ctx_init(&cabac->ctx.qt_cbf_model_luma[i], QP, INIT_QT_CBF[slice][i]);
kvz_ctx_init(&cabac->ctx.part_size_model[i], QP, INIT_PART_SIZE[slice][i]);
}
for (i = 0; i < 8; i++) {
kvz_ctx_init(&cabac->ctx.cu_sig_coeff_group_model[i], QP, INIT_SIG_CG_FLAG[slice][i]);
}
for (i = 0; i < 3; i++) {
kvz_ctx_init(&cabac->ctx.trans_subdiv_model[i], QP, INIT_TRANS_SUBDIV_FLAG[slice][i]);
}
for (i = 0; i < 2; i++) {
kvz_ctx_init(&cabac->ctx.qt_cbf_model_luma[i], QP, INIT_QT_CBF[slice][i], INIT_QT_CBF[3][i]);
kvz_ctx_init(&cabac->ctx.part_size_model[i], QP, INIT_PART_SIZE[slice][i], INIT_PART_SIZE[3][i]);
kvz_ctx_init(&cabac->ctx.qt_cbf_model_cr[i], QP, INIT_QT_CBF[slice][i + 9]);
kvz_ctx_init(&cabac->ctx.cu_ctx_last_y_chroma[i], QP, INIT_LAST_X[slice][i + 25], INIT_LAST_X[3][i + 25]);
kvz_ctx_init(&cabac->ctx.cu_ctx_last_x_chroma[i], QP, INIT_LAST_Y[slice][i + 25], INIT_LAST_Y[3][i + 25]);
}
for (i = 0; i < 5; i++) {
kvz_ctx_init(&cabac->ctx.qt_cbf_model_cb[i], QP, INIT_QT_CBF[slice][i + 4]);
kvz_ctx_init(&cabac->ctx.qt_cbf_model_cb[i], QP, INIT_QT_CBF[slice][i + 4], INIT_QT_CBF[3][i + 4]);
kvz_ctx_init(&cabac->ctx.inter_dir[i], QP, INIT_INTER_DIR[slice][i]);
kvz_ctx_init(&cabac->ctx.inter_dir[i], QP, INIT_INTER_DIR[slice][i], INIT_INTER_DIR[3][i]);
}
for (i = 0; i < 19; i++) {
kvz_ctx_init(&cabac->ctx.cu_ctx_last_y_luma[i], QP, INIT_LAST[slice][i] );
kvz_ctx_init(&cabac->ctx.cu_ctx_last_x_luma[i], QP, INIT_LAST[slice][i] );
kvz_ctx_init(&cabac->ctx.cu_ctx_last_y_chroma[i], QP, INIT_LAST[slice][i+19] );
kvz_ctx_init(&cabac->ctx.cu_ctx_last_x_chroma[i], QP, INIT_LAST[slice][i+19] );
for (i = 0; i < 25; i++) {
kvz_ctx_init(&cabac->ctx.cu_ctx_last_y_luma[i], QP, INIT_LAST_Y[slice][i], INIT_LAST_Y[3][i]);
kvz_ctx_init(&cabac->ctx.cu_ctx_last_x_luma[i], QP, INIT_LAST_X[slice][i], INIT_LAST_X[3][i]);
}
for (ii = 0; ii < 3; ii++) {
for (i = 0; i < 20; i++) {
kvz_ctx_init(&cabac->ctx.cu_sig_model_luma[ii][i], QP, INIT_SIG_FLAG[ii*2][slice][i]);
if (i < 12) kvz_ctx_init(&cabac->ctx.cu_sig_model_chroma[ii][i], QP, INIT_SIG_FLAG[ii*2+1][slice][i]);
for (i = 0; i < 18; i++) {
kvz_ctx_init(&cabac->ctx.cu_sig_model_luma[ii][i], QP, INIT_SIG_FLAG[ii*2][slice][i], INIT_SIG_FLAG[ii * 2][3][i]);
if (i < 12) kvz_ctx_init(&cabac->ctx.cu_sig_model_chroma[ii][i], QP, INIT_SIG_FLAG[ii*2+1][slice][i], INIT_SIG_FLAG[ii * 2 + 1][3][i]);
}
}
for (i = 0; i < 21; i++) {
kvz_ctx_init(&cabac->ctx.cu_parity_flag_model_luma[i], QP, INIT_PARITY_FLAG[0][slice][i]);
if (i < 11) kvz_ctx_init(&cabac->ctx.cu_parity_flag_model_chroma[i], QP, INIT_PARITY_FLAG[1][slice][i]);
kvz_ctx_init(&cabac->ctx.cu_parity_flag_model_luma[i], QP, INIT_PARITY_FLAG[0][slice][i], INIT_PARITY_FLAG[0][3][i]);
if (i < 11) kvz_ctx_init(&cabac->ctx.cu_parity_flag_model_chroma[i], QP, INIT_PARITY_FLAG[1][slice][i], INIT_PARITY_FLAG[1][3][i]);
}
for (ii = 0; ii < 2; ii++) {
for (i = 0; i < 21; i++) {
kvz_ctx_init(&cabac->ctx.cu_gtx_flag_model_luma[ii][i], QP, INIT_GTX_FLAG[ii * 2][slice][i]);
if (i < 11) kvz_ctx_init(&cabac->ctx.cu_gtx_flag_model_chroma[ii][i], QP, INIT_GTX_FLAG[ii * 2 + 1][slice][i]);
kvz_ctx_init(&cabac->ctx.cu_gtx_flag_model_luma[ii][i], QP, INIT_GTX_FLAG[ii * 2][slice][i], INIT_GTX_FLAG[ii * 2][3][i]);
if (i < 11) kvz_ctx_init(&cabac->ctx.cu_gtx_flag_model_chroma[ii][i], QP, INIT_GTX_FLAG[ii * 2 + 1][slice][i], INIT_GTX_FLAG[ii * 2 + 1][3][i]);
}
}
}

3
src/context.h
View file

@ -32,7 +32,7 @@
// Functions
void kvz_ctx_init(cabac_ctx_t* ctx, uint32_t qp, uint32_t init_value);
void kvz_ctx_init(cabac_ctx_t* ctx, uint32_t qp, uint32_t init_value, uint8_t rate);
void kvz_init_contexts(encoder_state_t *state, int8_t QP, int8_t slice);
void kvz_context_copy(encoder_state_t * target_state, const encoder_state_t * source_state);
@ -52,5 +52,6 @@ uint32_t kvz_go_rice_par_abs(const coeff_t* coeff, int32_t pos_x, int32_t pos_y,
uint32_t height, uint32_t width);
#define CNU 154
#define DWS 8
#endif