JPEG2000 image encoder and decoder common functions. More...
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Defines | |
#define | SHL(a, n) ((n)>=0 ? (a) << (n) : (a) >> -(n)) |
Functions | |
static int | tag_tree_size (int w, int h) |
allocate the memory for tag tree | |
J2kTgtNode * | ff_j2k_tag_tree_init (int w, int h) |
static void | tag_tree_zero (J2kTgtNode *t, int w, int h) |
static int | getnbctxno (int flag, int bandno, int vert_causal_ctx_csty_symbol) |
static int | getsgnctxno (int flag, uint8_t *xorbit) |
void | ff_j2k_init_tier1_luts (void) |
void | ff_j2k_set_significant (J2kT1Context *t1, int x, int y, int negative) |
int | ff_j2k_init_component (J2kComponent *comp, J2kCodingStyle *codsty, J2kQuantStyle *qntsty, int cbps, int dx, int dy) |
void | ff_j2k_reinit (J2kComponent *comp, J2kCodingStyle *codsty) |
void | ff_j2k_cleanup (J2kComponent *comp, J2kCodingStyle *codsty) |
Variables | |
uint8_t | ff_j2k_nbctxno_lut [256][4] |
uint8_t | ff_j2k_sgnctxno_lut [16][16] |
uint8_t | ff_j2k_xorbit_lut [16][16] |
JPEG2000 image encoder and decoder common functions.
Definition in file j2k.c.
#define SHL | ( | a, | |
n | |||
) | ((n)>=0 ? (a) << (n) : (a) >> -(n)) |
Definition at line 32 of file j2k.c.
Referenced by ff_j2k_init_component().
void ff_j2k_cleanup | ( | J2kComponent * | comp, |
J2kCodingStyle * | codsty | ||
) |
int ff_j2k_init_component | ( | J2kComponent * | comp, |
J2kCodingStyle * | codsty, | ||
J2kQuantStyle * | qntsty, | ||
int | cbps, | ||
int | dx, | ||
int | dy | ||
) |
Definition at line 203 of file j2k.c.
Referenced by init_tile(), and init_tiles().
void ff_j2k_init_tier1_luts | ( | void | ) |
Definition at line 171 of file j2k.c.
Referenced by decode_frame(), and j2kenc_init().
void ff_j2k_reinit | ( | J2kComponent * | comp, |
J2kCodingStyle * | codsty | ||
) |
void ff_j2k_set_significant | ( | J2kT1Context * | t1, |
int | x, | ||
int | y, | ||
int | negative | ||
) |
Definition at line 182 of file j2k.c.
Referenced by decode_clnpass(), decode_sigpass(), encode_clnpass(), and encode_sigpass().
J2kTgtNode* ff_j2k_tag_tree_init | ( | int | w, |
int | h | ||
) |
Definition at line 67 of file j2k.c.
Referenced by ff_j2k_init_component().
static int getnbctxno | ( | int | flag, |
int | bandno, | ||
int | vert_causal_ctx_csty_symbol | ||
) | [static] |
Definition at line 108 of file j2k.c.
Referenced by ff_j2k_init_tier1_luts().
static int getsgnctxno | ( | int | flag, |
uint8_t * | xorbit | ||
) | [static] |
Definition at line 156 of file j2k.c.
Referenced by ff_j2k_init_tier1_luts().
static int tag_tree_size | ( | int | w, |
int | h | ||
) | [static] |
allocate the memory for tag tree
Definition at line 56 of file j2k.c.
Referenced by ff_j2k_tag_tree_init(), and tag_tree_zero().
static void tag_tree_zero | ( | J2kTgtNode * | t, |
int | w, | ||
int | h | ||
) | [static] |
Definition at line 96 of file j2k.c.
Referenced by ff_j2k_reinit().
uint8_t ff_j2k_nbctxno_lut[256][4] |
Definition at line 106 of file j2k.c.
Referenced by ff_j2k_getnbctxno().
uint8_t ff_j2k_sgnctxno_lut[16][16] |
Definition at line 154 of file j2k.c.
Referenced by ff_j2k_getsgnctxno().
uint8_t ff_j2k_xorbit_lut[16][16] |
Definition at line 154 of file j2k.c.
Referenced by ff_j2k_getsgnctxno().