dirac_arith.h File Reference

Arithmetic decoder for Dirac. More...

#include "libavutil/x86/asm.h"
#include "bytestream.h"
#include "get_bits.h"

Go to the source code of this file.

Classes
struct	DiracArith

Macros
#define	CTX_SB_F1   CTX_ZP_F5
#define	CTX_SB_DATA   0
#define	CTX_PMODE_REF1   0
#define	CTX_PMODE_REF2   1
#define	CTX_GLOBAL_BLOCK   2
#define	CTX_MV_F1   CTX_ZP_F2
#define	CTX_MV_DATA   0
#define	CTX_DC_F1   CTX_ZP_F5
#define	CTX_DC_DATA   0

Enumerations
enum	dirac_arith_contexts {   CTX_ZPZN_F1, CTX_ZPNN_F1, CTX_NPZN_F1, CTX_NPNN_F1,   CTX_ZP_F2, CTX_ZP_F3, CTX_ZP_F4, CTX_ZP_F5,   CTX_ZP_F6, CTX_NP_F2, CTX_NP_F3, CTX_NP_F4,   CTX_NP_F5, CTX_NP_F6, CTX_COEFF_DATA, CTX_SIGN_NEG,   CTX_SIGN_ZERO, CTX_SIGN_POS, CTX_ZERO_BLOCK, CTX_DELTA_Q_F,   CTX_DELTA_Q_DATA, CTX_DELTA_Q_SIGN, DIRAC_CTX_COUNT }

Functions
void	ff_dirac_init_arith_tables (void)
void	ff_dirac_init_arith_decoder (DiracArith *c, GetBitContext *gb, int length)

Variables
const uint8_t	ff_dirac_next_ctx [DIRAC_CTX_COUNT]
const uint16_t	ff_dirac_prob [256]
int16_t	ff_dirac_prob_branchless [256][2]

Detailed Description

Arithmetic decoder for Dirac.

Author

Marco Gerards marco.nosp@m.@gnu.nosp@m..org