Libav
jpeg2000.h
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1 /*
2  * JPEG 2000 common defines, structures and functions
3  * Copyright (c) 2007 Kamil Nowosad
4  * Copyright (c) 2013 Nicolas Bertrand <nicoinattendu@gmail.com>
5  *
6  * This file is part of Libav.
7  *
8  * Libav is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * Libav is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with Libav; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #ifndef AVCODEC_JPEG2000_H
24 #define AVCODEC_JPEG2000_H
25 
32 #include <stdint.h>
33 
34 #include "avcodec.h"
35 #include "mqc.h"
36 #include "jpeg2000dwt.h"
37 
39  JPEG2000_SOC = 0xff4f, // start of codestream
40  JPEG2000_SIZ = 0xff51, // image and tile size
41  JPEG2000_COD, // coding style default
42  JPEG2000_COC, // coding style component
43  JPEG2000_TLM = 0xff55, // packed packet headers, tile-part header
44  JPEG2000_PLM = 0xff57, // tile-part lengths
45  JPEG2000_PLT, // packet length, main header
46  JPEG2000_QCD = 0xff5c, // quantization default
47  JPEG2000_QCC, // quantization component
48  JPEG2000_RGN, // region of interest
49  JPEG2000_POC, // progression order change
50  JPEG2000_PPM, // packet length, tile-part header
51  JPEG2000_PPT, // packed packet headers, main header
52  JPEG2000_CRG = 0xff63, // component registration
53  JPEG2000_COM, // comment
54  JPEG2000_SOT = 0xff90, // start of tile-part
55  JPEG2000_SOP, // start of packet
56  JPEG2000_EPH, // end of packet header
57  JPEG2000_SOD, // start of data
58  JPEG2000_EOC = 0xffd9, // end of codestream
59 };
60 
61 enum Jpeg2000Quantsty { // quantization style
62  JPEG2000_QSTY_NONE, // no quantization
63  JPEG2000_QSTY_SI, // scalar derived
64  JPEG2000_QSTY_SE // scalar expounded
65 };
66 
67 #define JPEG2000_MAX_CBLKW 64
68 #define JPEG2000_MAX_CBLKH 64
69 
70 
71 #define JPEG2000_MAX_DECLEVELS 32
72 #define JPEG2000_MAX_RESLEVELS (JPEG2000_MAX_DECLEVELS + 1)
73 
74 // T1 flags
75 // flags determining significance of neighbor coefficients
76 #define JPEG2000_T1_SIG_N 0x0001
77 #define JPEG2000_T1_SIG_E 0x0002
78 #define JPEG2000_T1_SIG_W 0x0004
79 #define JPEG2000_T1_SIG_S 0x0008
80 #define JPEG2000_T1_SIG_NE 0x0010
81 #define JPEG2000_T1_SIG_NW 0x0020
82 #define JPEG2000_T1_SIG_SE 0x0040
83 #define JPEG2000_T1_SIG_SW 0x0080
84 #define JPEG2000_T1_SIG_NB (JPEG2000_T1_SIG_N | JPEG2000_T1_SIG_E | \
85  JPEG2000_T1_SIG_S | JPEG2000_T1_SIG_W | \
86  JPEG2000_T1_SIG_NE | JPEG2000_T1_SIG_NW | \
87  JPEG2000_T1_SIG_SE | JPEG2000_T1_SIG_SW)
88 // flags determining sign bit of neighbor coefficients
89 #define JPEG2000_T1_SGN_N 0x0100
90 #define JPEG2000_T1_SGN_S 0x0200
91 #define JPEG2000_T1_SGN_W 0x0400
92 #define JPEG2000_T1_SGN_E 0x0800
93 
94 #define JPEG2000_T1_VIS 0x1000
95 #define JPEG2000_T1_SIG 0x2000
96 #define JPEG2000_T1_REF 0x4000
97 
98 #define JPEG2000_T1_SGN 0x8000
99 
100 // Codeblock coding styles
101 #define JPEG2000_CBLK_BYPASS 0x01 // Selective arithmetic coding bypass
102 #define JPEG2000_CBLK_RESET 0x02 // Reset context probabilities
103 #define JPEG2000_CBLK_TERMALL 0x04 // Terminate after each coding pass
104 #define JPEG2000_CBLK_VSC 0x08 // Vertical stripe causal context formation
105 #define JPEG2000_CBLK_PREDTERM 0x10 // Predictable termination
106 #define JPEG2000_CBLK_SEGSYM 0x20 // Segmentation symbols present
107 
108 // Coding styles
109 #define JPEG2000_CSTY_PREC 0x01 // Precincts defined in coding style
110 #define JPEG2000_CSTY_SOP 0x02 // SOP marker present
111 #define JPEG2000_CSTY_EPH 0x04 // EPH marker present
112 
113 // Progression orders
114 #define JPEG2000_PGOD_LRCP 0x00 // Layer-resolution level-component-position progression
115 #define JPEG2000_PGOD_RLCP 0x01 // Resolution level-layer-component-position progression
116 #define JPEG2000_PGOD_RPCL 0x02 // Resolution level-position-component-layer progression
117 #define JPEG2000_PGOD_PCRL 0x03 // Position-component-resolution level-layer progression
118 #define JPEG2000_PGOD_CPRL 0x04 // Component-position-resolution level-layer progression
119 
120 typedef struct Jpeg2000T1Context {
125 
126 typedef struct Jpeg2000TgtNode {
131 
132 typedef struct Jpeg2000CodingStyle {
133  uint8_t nreslevels; // number of resolution levels
134  uint8_t nreslevels2decode; // number of resolution levels to decode
136  log2_cblk_height; // exponent of codeblock size
137  uint8_t transform; // DWT type
138  uint8_t csty; // coding style
139  uint8_t nlayers; // number of layers
140  uint8_t mct; // multiple component transformation
141  uint8_t cblk_style; // codeblock coding style
142  uint8_t prog_order; // progression order
143  uint8_t log2_prec_widths[JPEG2000_MAX_RESLEVELS]; // precincts size according resolution levels
144  uint8_t log2_prec_heights[JPEG2000_MAX_RESLEVELS]; // TODO: initialize prec_size array with 0?
146 
147 typedef struct Jpeg2000QuantStyle {
148  uint8_t expn[JPEG2000_MAX_DECLEVELS * 3]; // quantization exponent
149  uint32_t mant[JPEG2000_MAX_DECLEVELS * 3]; // quantization mantissa
150  uint8_t quantsty; // quantization style
151  uint8_t nguardbits; // number of guard bits
153 
154 typedef struct Jpeg2000Cblk {
156  uint8_t ninclpasses; // number coding of passes included in codestream
158  uint16_t length;
159  uint16_t lengthinc;
162  uint8_t data[8192];
163  uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
164 } Jpeg2000Cblk; // code block
165 
166 typedef struct Jpeg2000Prec {
172  uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
173 } Jpeg2000Prec; // precinct
174 
175 typedef struct Jpeg2000Band {
176  uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
178  int i_stepsize; // quantization stepsize
179  float f_stepsize; // quantization stepsize
181 } Jpeg2000Band; // subband
182 
183 typedef struct Jpeg2000ResLevel {
185  uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
186  uint16_t num_precincts_x, num_precincts_y; // number of precincts in x/y direction
187  uint8_t log2_prec_width, log2_prec_height; // exponent of precinct size
189 } Jpeg2000ResLevel; // resolution level
190 
191 typedef struct Jpeg2000Component {
194  float *f_data;
195  int *i_data;
196  uint16_t coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}} -- can be reduced with lowres option
197  uint16_t coord_o[2][2]; // border coordinates {{x0, x1}, {y0, y1}} -- original values from jpeg2000 headers
199 
200 /* misc tools */
201 static inline int ff_jpeg2000_ceildivpow2(int a, int b)
202 {
203  return (a + (1 << b) - 1) >> b;
204 }
205 
206 static inline int ff_jpeg2000_ceildiv(int a, int b)
207 {
208  return (a + b - 1) / b;
209 }
210 
211 /* TIER-1 routines */
212 
213 /* Set up lookup tables used in TIER-1. */
214 void ff_jpeg2000_init_tier1_luts(void);
215 
216 /* Update significance of a coefficient at current position (x,y) and
217  * for neighbors. */
219  int x, int y, int negative);
220 
221 extern uint8_t ff_jpeg2000_sigctxno_lut[256][4];
222 
223 /* Get context label (number in range[0..8]) of a coefficient for significance
224  * propagation and cleanup coding passes. */
225 static inline int ff_jpeg2000_getsigctxno(int flag, int bandno)
226 {
227  return ff_jpeg2000_sigctxno_lut[flag & 255][bandno];
228 }
229 
230 static const uint8_t refctxno_lut[2][2] = { { 14, 15 }, { 16, 16 } };
231 
232 /* Get context label (number in range[14..16]) of a coefficient for magnitude
233  * refinement pass. */
234 static inline int ff_jpeg2000_getrefctxno(int flag)
235 {
236  return refctxno_lut[(flag >> 14) & 1][(flag & 255) != 0];
237 }
238 
239 extern uint8_t ff_jpeg2000_sgnctxno_lut[16][16];
240 extern uint8_t ff_jpeg2000_xorbit_lut[16][16];
241 
242 /* Get context label (number in range[9..13]) for sign decoding. */
243 static inline int ff_jpeg2000_getsgnctxno(int flag, int *xorbit)
244 {
245  *xorbit = ff_jpeg2000_xorbit_lut[flag & 15][(flag >> 8) & 15];
246  return ff_jpeg2000_sgnctxno_lut[flag & 15][(flag >> 8) & 15];
247 }
248 
250  Jpeg2000CodingStyle *codsty,
251  Jpeg2000QuantStyle *qntsty,
252  int cbps, int dx, int dy,
253  AVCodecContext *ctx);
254 
256 
257 #endif /* AVCODEC_JPEG2000_H */
uint16_t coord[2][2]
Definition: jpeg2000.h:172
uint8_t nguardbits
Definition: jpeg2000.h:151
Discrete wavelet transform.
int flags[JPEG2000_MAX_CBLKW+2][JPEG2000_MAX_CBLKH+2]
Definition: jpeg2000.h:122
DWTContext dwt
Definition: jpeg2000.h:193
Jpeg2000TgtNode * cblkincl
Definition: jpeg2000.h:170
float * f_data
Definition: jpeg2000.h:194
#define JPEG2000_MAX_CBLKH
Definition: jpeg2000.h:68
uint8_t ninclpasses
Definition: jpeg2000.h:156
void ff_jpeg2000_cleanup(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty)
Definition: jpeg2000.c:485
float f_stepsize
Definition: jpeg2000.h:179
uint16_t nb_codeblocks_height
Definition: jpeg2000.h:168
uint8_t npasses
Definition: jpeg2000.h:155
uint16_t log2_cblk_width
Definition: jpeg2000.h:177
MQ-coder.
uint8_t
#define b
Definition: input.c:52
Jpeg2000TgtNode * zerobits
Definition: jpeg2000.h:169
Jpeg2000Band * band
Definition: jpeg2000.h:188
uint8_t val
Definition: jpeg2000.h:127
uint16_t num_precincts_x
Definition: jpeg2000.h:186
void ff_jpeg2000_set_significance(Jpeg2000T1Context *t1, int x, int y, int negative)
Definition: jpeg2000.c:173
uint8_t nonzerobits
Definition: jpeg2000.h:157
uint8_t log2_prec_widths[JPEG2000_MAX_RESLEVELS]
Definition: jpeg2000.h:143
uint8_t nreslevels
Definition: jpeg2000.h:133
int data[JPEG2000_MAX_CBLKW][JPEG2000_MAX_CBLKH]
Definition: jpeg2000.h:121
uint8_t log2_prec_heights[JPEG2000_MAX_RESLEVELS]
Definition: jpeg2000.h:144
int ff_jpeg2000_init_component(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty, Jpeg2000QuantStyle *qntsty, int cbps, int dx, int dy, AVCodecContext *ctx)
Definition: jpeg2000.c:198
uint8_t zero
Definition: jpeg2000.h:161
Jpeg2000Quantsty
Definition: jpeg2000.h:61
Jpeg2000Cblk * cblk
Definition: jpeg2000.h:171
uint8_t cblk_style
Definition: jpeg2000.h:141
Libavcodec external API header.
static const uint8_t refctxno_lut[2][2]
Definition: jpeg2000.h:230
uint8_t lblock
Definition: jpeg2000.h:160
uint8_t data[8192]
Definition: jpeg2000.h:162
struct Jpeg2000TgtNode * parent
Definition: jpeg2000.h:129
int i_stepsize
Definition: jpeg2000.h:178
#define JPEG2000_MAX_RESLEVELS
Definition: jpeg2000.h:72
uint8_t ff_jpeg2000_sigctxno_lut[256][4]
Definition: jpeg2000.c:85
uint16_t num_precincts_y
Definition: jpeg2000.h:186
static int ff_jpeg2000_getsigctxno(int flag, int bandno)
Definition: jpeg2000.h:225
uint16_t lengthinc
Definition: jpeg2000.h:159
#define JPEG2000_MAX_DECLEVELS
Definition: jpeg2000.h:71
static int ff_jpeg2000_ceildivpow2(int a, int b)
Definition: jpeg2000.h:201
uint16_t coord[2][2]
Definition: jpeg2000.h:176
Jpeg2000Markers
Definition: jpeg2000.h:38
uint16_t coord[2][2]
Definition: jpeg2000.h:163
uint8_t nreslevels2decode
Definition: jpeg2000.h:134
main external API structure.
Definition: avcodec.h:1050
uint8_t vis
Definition: jpeg2000.h:128
uint8_t log2_prec_height
Definition: jpeg2000.h:187
uint16_t length
Definition: jpeg2000.h:158
uint8_t nbands
Definition: jpeg2000.h:184
uint16_t nb_codeblocks_width
Definition: jpeg2000.h:167
void ff_jpeg2000_init_tier1_luts(void)
Definition: jpeg2000.c:161
uint16_t coord[2][2]
Definition: jpeg2000.h:196
Jpeg2000ResLevel * reslevel
Definition: jpeg2000.h:192
static int ff_jpeg2000_ceildiv(int a, int b)
Definition: jpeg2000.h:206
uint8_t expn[JPEG2000_MAX_DECLEVELS *3]
Definition: jpeg2000.h:148
uint8_t prog_order
Definition: jpeg2000.h:142
uint8_t quantsty
Definition: jpeg2000.h:150
uint8_t log2_cblk_width
Definition: jpeg2000.h:135
uint16_t coord_o[2][2]
Definition: jpeg2000.h:197
uint16_t log2_cblk_height
Definition: jpeg2000.h:177
uint8_t ff_jpeg2000_xorbit_lut[16][16]
Definition: jpeg2000.c:142
uint16_t coord[2][2]
Definition: jpeg2000.h:185
Jpeg2000Prec * prec
Definition: jpeg2000.h:180
static void comp(unsigned char *dst, int dst_stride, unsigned char *src, int src_stride, int add)
Definition: eamad.c:83
MqcState mqc
Definition: jpeg2000.h:123
static int ff_jpeg2000_getrefctxno(int flag)
Definition: jpeg2000.h:234
uint8_t log2_cblk_height
Definition: jpeg2000.h:135
Definition: mqc.h:40
#define JPEG2000_MAX_CBLKW
Definition: jpeg2000.h:67
uint8_t log2_prec_width
Definition: jpeg2000.h:187
uint8_t ff_jpeg2000_sgnctxno_lut[16][16]
Definition: jpeg2000.c:142
uint32_t mant[JPEG2000_MAX_DECLEVELS *3]
Definition: jpeg2000.h:149
static int ff_jpeg2000_getsgnctxno(int flag, int *xorbit)
Definition: jpeg2000.h:243