FFmpeg
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#include "libavutil/attributes.h"
#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "libavutil/thread.h"
#include "avcodec.h"
#include "jpeg2000.h"
Go to the source code of this file.
Macros | |
#define | SHL(a, n) ((n) >= 0 ? (a) << (n) : (a) >> -(n)) |
Functions | |
static int32_t | tag_tree_size (int w, int h) |
static Jpeg2000TgtNode * | ff_jpeg2000_tag_tree_init (int w, int h) |
void | ff_tag_tree_zero (Jpeg2000TgtNode *t, int w, int h, int val) |
static int | getsigctxno (int flag, int bandno) |
static int | getsgnctxno (int flag, uint8_t *xorbit) |
static void av_cold | jpeg2000_init_tier1_luts (void) |
void av_cold | ff_jpeg2000_init_tier1_luts (void) |
void | ff_jpeg2000_set_significance (Jpeg2000T1Context *t1, int x, int y, int negative) |
static av_always_inline float | exp2fi (int x) |
2^(x) for integer x in the range -126..128. More... | |
static void | init_band_stepsize (AVCodecContext *avctx, Jpeg2000Band *band, Jpeg2000CodingStyle *codsty, Jpeg2000QuantStyle *qntsty, int bandno, int gbandno, int reslevelno, int cbps) |
static int | init_prec (AVCodecContext *avctx, Jpeg2000Band *band, Jpeg2000ResLevel *reslevel, Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty, int precno, int bandno, int reslevelno, int log2_band_prec_width, int log2_band_prec_height) |
static int | init_band (AVCodecContext *avctx, Jpeg2000ResLevel *reslevel, Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty, Jpeg2000QuantStyle *qntsty, int bandno, int gbandno, int reslevelno, const int cbps, int dx, int dy) |
int | ff_jpeg2000_init_component (Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty, Jpeg2000QuantStyle *qntsty, const int cbps, int dx, int dy, AVCodecContext *avctx) |
void | ff_jpeg2000_reinit (Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty) |
void | ff_jpeg2000_cleanup (Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty) |
Variables | |
uint8_t | ff_jpeg2000_sigctxno_lut [256][4] |
uint8_t | ff_jpeg2000_sgnctxno_lut [16][16] |
uint8_t | ff_jpeg2000_xorbit_lut [16][16] |
static const int | contribtab [3][3] = { { 0, -1, 1 }, { -1, -1, 0 }, { 1, 0, 1 } } |
static const int | ctxlbltab [3][3] = { { 13, 12, 11 }, { 10, 9, 10 }, { 11, 12, 13 } } |
static const int | xorbittab [3][3] = { { 1, 1, 1 }, { 1, 0, 0 }, { 0, 0, 0 } } |
JPEG 2000 image encoder and decoder common functions
Definition in file jpeg2000.c.
Definition at line 37 of file jpeg2000.c.
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Definition at line 41 of file jpeg2000.c.
Referenced by ff_jpeg2000_tag_tree_init(), and ff_tag_tree_zero().
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Definition at line 54 of file jpeg2000.c.
Referenced by init_prec().
void ff_tag_tree_zero | ( | Jpeg2000TgtNode * | t, |
int | w, | ||
int | h, | ||
int | val | ||
) |
Definition at line 85 of file jpeg2000.c.
Referenced by encode_packet(), and ff_jpeg2000_reinit().
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Definition at line 98 of file jpeg2000.c.
Referenced by jpeg2000_init_tier1_luts().
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Definition at line 147 of file jpeg2000.c.
Referenced by jpeg2000_init_tier1_luts().
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Definition at line 160 of file jpeg2000.c.
Referenced by ff_jpeg2000_init_tier1_luts().
void av_cold ff_jpeg2000_init_tier1_luts | ( | void | ) |
Definition at line 172 of file jpeg2000.c.
Referenced by init_luts(), and jpeg2000_decode_init().
void ff_jpeg2000_set_significance | ( | Jpeg2000T1Context * | t1, |
int | x, | ||
int | y, | ||
int | negative | ||
) |
Definition at line 178 of file jpeg2000.c.
Referenced by decode_clnpass(), decode_sigpass(), encode_clnpass(), and encode_sigpass().
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2^(x) for integer x in the range -126..128.
Definition at line 207 of file jpeg2000.c.
Referenced by init_band_stepsize().
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Definition at line 214 of file jpeg2000.c.
Referenced by init_band().
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Definition at line 274 of file jpeg2000.c.
Referenced by init_band().
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Definition at line 391 of file jpeg2000.c.
Referenced by ff_jpeg2000_init_component().
int ff_jpeg2000_init_component | ( | Jpeg2000Component * | comp, |
Jpeg2000CodingStyle * | codsty, | ||
Jpeg2000QuantStyle * | qntsty, | ||
const int | cbps, | ||
int | dx, | ||
int | dy, | ||
AVCodecContext * | avctx | ||
) |
Definition at line 469 of file jpeg2000.c.
Referenced by init_tile(), and init_tiles().
void ff_jpeg2000_reinit | ( | Jpeg2000Component * | comp, |
Jpeg2000CodingStyle * | codsty | ||
) |
Definition at line 579 of file jpeg2000.c.
Referenced by reinit().
void ff_jpeg2000_cleanup | ( | Jpeg2000Component * | comp, |
Jpeg2000CodingStyle * | codsty | ||
) |
Definition at line 600 of file jpeg2000.c.
Referenced by cleanup(), and jpeg2000_dec_cleanup().
uint8_t ff_jpeg2000_sigctxno_lut[256][4] |
Definition at line 96 of file jpeg2000.c.
Referenced by ff_jpeg2000_getsigctxno(), and jpeg2000_init_tier1_luts().
uint8_t ff_jpeg2000_sgnctxno_lut[16][16] |
Definition at line 141 of file jpeg2000.c.
Referenced by ff_jpeg2000_getsgnctxno(), and jpeg2000_init_tier1_luts().
uint8_t ff_jpeg2000_xorbit_lut[16][16] |
Definition at line 141 of file jpeg2000.c.
Referenced by ff_jpeg2000_getsgnctxno(), and jpeg2000_init_tier1_luts().
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Definition at line 143 of file jpeg2000.c.
Referenced by getsgnctxno().
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Definition at line 144 of file jpeg2000.c.
Referenced by getsgnctxno().
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Definition at line 145 of file jpeg2000.c.
Referenced by getsgnctxno().