#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "cabac_functions.h"
#include "hevc.h"

Macros
#define	CABAC_MAX_BIN 100

#define	CNU 154

#define	GET_CABAC(ctx) get_cabac(&s->HEVClc.cc, &s->HEVClc.cabac_state[ctx])

#define	LAST_SIG_COEFF(elem)

Functions
void	ff_hevc_save_states (HEVCContext *s, int ctb_addr_ts)

static void	load_states (HEVCContext *s)

static void	cabac_reinit (HEVCLocalContext *lc)

static void	cabac_init_decoder (HEVCContext *s)

static void	cabac_init_state (HEVCContext *s)

void	ff_hevc_cabac_init (HEVCContext *s, int ctb_addr_ts)

int	ff_hevc_sao_merge_flag_decode (HEVCContext *s)

int	ff_hevc_sao_type_idx_decode (HEVCContext *s)

int	ff_hevc_sao_band_position_decode (HEVCContext *s)

int	ff_hevc_sao_offset_abs_decode (HEVCContext *s)

int	ff_hevc_sao_offset_sign_decode (HEVCContext *s)

int	ff_hevc_sao_eo_class_decode (HEVCContext *s)

int	ff_hevc_end_of_slice_flag_decode (HEVCContext *s)

int	ff_hevc_cu_transquant_bypass_flag_decode (HEVCContext *s)

int	ff_hevc_skip_flag_decode (HEVCContext *s, int x0, int y0, int x_cb, int y_cb)

int	ff_hevc_cu_qp_delta_abs (HEVCContext *s)

int	ff_hevc_cu_qp_delta_sign_flag (HEVCContext *s)

int	ff_hevc_pred_mode_decode (HEVCContext *s)

int	ff_hevc_split_coding_unit_flag_decode (HEVCContext *s, int ct_depth, int x0, int y0)

int	ff_hevc_part_mode_decode (HEVCContext *s, int log2_cb_size)

int	ff_hevc_pcm_flag_decode (HEVCContext *s)

int	ff_hevc_prev_intra_luma_pred_flag_decode (HEVCContext *s)

int	ff_hevc_mpm_idx_decode (HEVCContext *s)

int	ff_hevc_rem_intra_luma_pred_mode_decode (HEVCContext *s)

int	ff_hevc_intra_chroma_pred_mode_decode (HEVCContext *s)

int	ff_hevc_merge_idx_decode (HEVCContext *s)

int	ff_hevc_merge_flag_decode (HEVCContext *s)

int	ff_hevc_inter_pred_idc_decode (HEVCContext *s, int nPbW, int nPbH)

int	ff_hevc_ref_idx_lx_decode (HEVCContext *s, int num_ref_idx_lx)

int	ff_hevc_mvp_lx_flag_decode (HEVCContext *s)

int	ff_hevc_no_residual_syntax_flag_decode (HEVCContext *s)

int	ff_hevc_abs_mvd_greater0_flag_decode (HEVCContext *s)

int	ff_hevc_abs_mvd_greater1_flag_decode (HEVCContext *s)

int	ff_hevc_mvd_decode (HEVCContext *s)

int	ff_hevc_mvd_sign_flag_decode (HEVCContext *s)

int	ff_hevc_split_transform_flag_decode (HEVCContext *s, int log2_trafo_size)

int	ff_hevc_cbf_cb_cr_decode (HEVCContext *s, int trafo_depth)

int	ff_hevc_cbf_luma_decode (HEVCContext *s, int trafo_depth)

int	ff_hevc_transform_skip_flag_decode (HEVCContext *s, int c_idx)

int	ff_hevc_last_significant_coeff_x_prefix_decode (HEVCContext *s, int c_idx, int log2_size)

int	ff_hevc_last_significant_coeff_y_prefix_decode (HEVCContext *s, int c_idx, int log2_size)

int	ff_hevc_last_significant_coeff_suffix_decode (HEVCContext *s, int last_significant_coeff_prefix)

int	ff_hevc_significant_coeff_group_flag_decode (HEVCContext *s, int c_idx, int ctx_cg)

int	ff_hevc_significant_coeff_flag_decode (HEVCContext *s, int c_idx, int x_c, int y_c, int log2_trafo_size, int scan_idx, int prev_sig)

int	ff_hevc_coeff_abs_level_greater1_flag_decode (HEVCContext *s, int c_idx, int inc)

int	ff_hevc_coeff_abs_level_greater2_flag_decode (HEVCContext *s, int c_idx, int inc)

int	ff_hevc_coeff_abs_level_remaining (HEVCContext *s, int base_level, int rc_rice_param)

int	ff_hevc_coeff_sign_flag (HEVCContext *s, uint8_t nb)

Variables
static av_unused const int8_t	num_bins_in_se []
	number of bin by SyntaxElement. More...

static const int	elem_offset [sizeof(num_bins_in_se)]
	Offset to ctxIdx 0 in init_values and states, indexed by SyntaxElement. More...

static const uint8_t	init_values [3][HEVC_CONTEXTS]
	Indexed by init_type. More...

Macro Definition Documentation

#define CABAC_MAX_BIN 100

Definition at line 30 of file hevc_cabac.c.

Referenced by ff_hevc_coeff_abs_level_remaining(), ff_hevc_cu_qp_delta_abs(), and ff_hevc_mvd_decode().

#define CNU 154

Definition at line 130 of file hevc_cabac.c.

#define GET_CABAC ( ctx ) get_cabac(&s->HEVClc.cc, &s->HEVClc.cabac_state[ctx])

Definition at line 415 of file hevc_cabac.c.

#define LAST_SIG_COEFF ( elem )

Value:

int i = 0;                                                                  \
    int max = (log2_size << 1) - 1;                                             \
    int ctx_offset, ctx_shift;                                                  \
                                                                                \
    if (c_idx == 0) {                                                           \
        ctx_offset = 3 * (log2_size - 2)  + ((log2_size - 1) >> 2);             \
        ctx_shift = (log2_size + 1) >> 2;                                       \
    } else {                                                                    \
        ctx_offset = 15;                                                        \
        ctx_shift = log2_size - 2;                                              \
    }                                                                           \
    while (i < max &&                                                           \
           GET_CABAC(elem_offset[elem] + (i >> ctx_shift) + ctx_offset))        \
        i++;                                                                    \
    return i;