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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 FFmpeg.
7  *
8  * FFmpeg 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  * FFmpeg 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 FFmpeg; 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 
26 /**
27  * @file
28  * JPEG 2000 structures and defines common
29  * to encoder and decoder
30  */
31 
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 #define JPEG2000_SOP_FIXED_BYTES 0xFF910004
62 #define JPEG2000_SOP_BYTE_LENGTH 6
63 
64 enum Jpeg2000Quantsty { // quantization style
65  JPEG2000_QSTY_NONE, // no quantization
66  JPEG2000_QSTY_SI, // scalar derived
67  JPEG2000_QSTY_SE // scalar expounded
68 };
69 
70 #define JPEG2000_MAX_DECLEVELS 33
71 #define JPEG2000_MAX_RESLEVELS (JPEG2000_MAX_DECLEVELS + 1)
72 
73 #define JPEG2000_MAX_PASSES 100
74 
75 // T1 flags
76 // flags determining significance of neighbor coefficients
77 #define JPEG2000_T1_SIG_N 0x0001
78 #define JPEG2000_T1_SIG_E 0x0002
79 #define JPEG2000_T1_SIG_W 0x0004
80 #define JPEG2000_T1_SIG_S 0x0008
81 #define JPEG2000_T1_SIG_NE 0x0010
82 #define JPEG2000_T1_SIG_NW 0x0020
83 #define JPEG2000_T1_SIG_SE 0x0040
84 #define JPEG2000_T1_SIG_SW 0x0080
85 #define JPEG2000_T1_SIG_NB (JPEG2000_T1_SIG_N | JPEG2000_T1_SIG_E | \
86  JPEG2000_T1_SIG_S | JPEG2000_T1_SIG_W | \
87  JPEG2000_T1_SIG_NE | JPEG2000_T1_SIG_NW | \
88  JPEG2000_T1_SIG_SE | JPEG2000_T1_SIG_SW)
89 // flags determining sign bit of neighbor coefficients
90 #define JPEG2000_T1_SGN_N 0x0100
91 #define JPEG2000_T1_SGN_S 0x0200
92 #define JPEG2000_T1_SGN_W 0x0400
93 #define JPEG2000_T1_SGN_E 0x0800
94 
95 #define JPEG2000_T1_VIS 0x1000
96 #define JPEG2000_T1_SIG 0x2000
97 #define JPEG2000_T1_REF 0x4000
98 
99 #define JPEG2000_T1_SGN 0x8000
100 
101 // Codeblock coding styles
102 #define JPEG2000_CBLK_BYPASS 0x01 // Selective arithmetic coding bypass
103 #define JPEG2000_CBLK_RESET 0x02 // Reset context probabilities
104 #define JPEG2000_CBLK_TERMALL 0x04 // Terminate after each coding pass
105 #define JPEG2000_CBLK_VSC 0x08 // Vertical stripe causal context formation
106 #define JPEG2000_CBLK_PREDTERM 0x10 // Predictable termination
107 #define JPEG2000_CBLK_SEGSYM 0x20 // Segmentation symbols present
108 
109 // Coding styles
110 #define JPEG2000_CSTY_PREC 0x01 // Precincts defined in coding style
111 #define JPEG2000_CSTY_SOP 0x02 // SOP marker present
112 #define JPEG2000_CSTY_EPH 0x04 // EPH marker present
113 
114 // Progression orders
115 #define JPEG2000_PGOD_LRCP 0x00 // Layer-resolution level-component-position progression
116 #define JPEG2000_PGOD_RLCP 0x01 // Resolution level-layer-component-position progression
117 #define JPEG2000_PGOD_RPCL 0x02 // Resolution level-position-component-layer progression
118 #define JPEG2000_PGOD_PCRL 0x03 // Position-component-resolution level-layer progression
119 #define JPEG2000_PGOD_CPRL 0x04 // Component-position-resolution level-layer progression
120 
121 typedef struct Jpeg2000T1Context {
122  int data[6144];
123  uint16_t flags[6156];
125  int stride;
127 
128 typedef struct Jpeg2000TgtNode {
133 
134 typedef struct Jpeg2000CodingStyle {
135  int nreslevels; // number of resolution levels
136  int nreslevels2decode; // number of resolution levels to decode
138  log2_cblk_height; // exponent of codeblock size
139  uint8_t transform; // DWT type
140  uint8_t csty; // coding style
141  uint8_t nlayers; // number of layers
142  uint8_t mct; // multiple component transformation
143  uint8_t cblk_style; // codeblock coding style
144  uint8_t prog_order; // progression order
145  uint8_t log2_prec_widths[JPEG2000_MAX_RESLEVELS]; // precincts size according resolution levels
146  uint8_t log2_prec_heights[JPEG2000_MAX_RESLEVELS]; // TODO: initialize prec_size array with 0?
148 
149 typedef struct Jpeg2000QuantStyle {
150  uint8_t expn[JPEG2000_MAX_DECLEVELS * 3]; // quantization exponent
151  uint16_t mant[JPEG2000_MAX_DECLEVELS * 3]; // quantization mantissa
152  uint8_t quantsty; // quantization style
153  uint8_t nguardbits; // number of guard bits
155 
156 typedef struct Jpeg2000Pass {
157  uint16_t rate;
158  int64_t disto;
161 } Jpeg2000Pass;
162 
163 typedef struct Jpeg2000Cblk {
165  uint8_t ninclpasses; // number coding of passes included in codestream
167  uint16_t length;
177  int coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
178 } Jpeg2000Cblk; // code block
179 
180 typedef struct Jpeg2000Prec {
187  int coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
188 } Jpeg2000Prec; // precinct
189 
190 typedef struct Jpeg2000Band {
191  int coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
193  int i_stepsize; // quantization stepsize
194  float f_stepsize; // quantization stepsize
196 } Jpeg2000Band; // subband
197 
198 typedef struct Jpeg2000ResLevel {
200  int coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}}
201  int num_precincts_x, num_precincts_y; // number of precincts in x/y direction
202  uint8_t log2_prec_width, log2_prec_height; // exponent of precinct size
204 } Jpeg2000ResLevel; // resolution level
205 
206 typedef struct Jpeg2000Component {
209  float *f_data;
210  int *i_data;
211  int coord[2][2]; // border coordinates {{x0, x1}, {y0, y1}} -- can be reduced with lowres option
212  int coord_o[2][2]; // border coordinates {{x0, x1}, {y0, y1}} -- original values from jpeg2000 headers
214 
215 /* misc tools */
216 static inline int ff_jpeg2000_ceildivpow2(int a, int b)
217 {
218  return -((-(int64_t)a) >> b);
219 }
220 
221 static inline int ff_jpeg2000_ceildiv(int a, int b)
222 {
223  return (a + (int64_t)b - 1) / b;
224 }
225 
226 /* TIER-1 routines */
227 
228 /* Set up lookup tables used in TIER-1. */
229 void ff_jpeg2000_init_tier1_luts(void);
230 
231 /* Update significance of a coefficient at current position (x,y) and
232  * for neighbors. */
234  int x, int y, int negative);
235 
236 extern uint8_t ff_jpeg2000_sigctxno_lut[256][4];
237 
238 /* Get context label (number in range[0..8]) of a coefficient for significance
239  * propagation and cleanup coding passes. */
240 static inline int ff_jpeg2000_getsigctxno(int flag, int bandno)
241 {
242  return ff_jpeg2000_sigctxno_lut[flag & 255][bandno];
243 }
244 
245 static const uint8_t refctxno_lut[2][2] = { { 14, 15 }, { 16, 16 } };
246 
247 /* Get context label (number in range[14..16]) of a coefficient for magnitude
248  * refinement pass. */
249 static inline int ff_jpeg2000_getrefctxno(int flag)
250 {
251  return refctxno_lut[(flag >> 14) & 1][(flag & 255) != 0];
252 }
253 
254 extern uint8_t ff_jpeg2000_sgnctxno_lut[16][16];
255 extern uint8_t ff_jpeg2000_xorbit_lut[16][16];
256 
257 /* Get context label (number in range[9..13]) for sign decoding. */
258 static inline int ff_jpeg2000_getsgnctxno(int flag, int *xorbit)
259 {
260  *xorbit = ff_jpeg2000_xorbit_lut[flag & 15][(flag >> 8) & 15];
261  return ff_jpeg2000_sgnctxno_lut[flag & 15][(flag >> 8) & 15];
262 }
263 
265  Jpeg2000CodingStyle *codsty,
266  Jpeg2000QuantStyle *qntsty,
267  int cbps, int dx, int dy,
269 
271 
273 
274 static inline int needs_termination(int style, int passno) {
275  if (style & JPEG2000_CBLK_BYPASS) {
276  int type = passno % 3;
277  passno /= 3;
278  if (type == 0 && passno > 2)
279  return 2;
280  if (type == 2 && passno > 2)
281  return 1;
282  if (style & JPEG2000_CBLK_TERMALL) {
283  return passno > 2 ? 2 : 1;
284  }
285  }
286  if (style & JPEG2000_CBLK_TERMALL)
287  return 1;
288  return 0;
289 }
290 
291 #endif /* AVCODEC_JPEG2000_H */
uint8_t nguardbits
Definition: jpeg2000.h:153
Discrete wavelet transform.
#define flag(name)
Definition: cbs_h2645.c:345
DWTContext dwt
Definition: jpeg2000.h:208
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
Jpeg2000TgtNode * cblkincl
Definition: jpeg2000.h:184
float * f_data
Definition: jpeg2000.h:209
uint8_t ninclpasses
Definition: jpeg2000.h:165
const char * b
Definition: vf_curves.c:113
int nb_codeblocks_width
Definition: jpeg2000.h:181
uint16_t mant[JPEG2000_MAX_DECLEVELS *3]
Definition: jpeg2000.h:151
void ff_jpeg2000_cleanup(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty)
Definition: jpeg2000.c:578
float f_stepsize
Definition: jpeg2000.h:194
uint8_t npasses
Definition: jpeg2000.h:164
uint16_t log2_cblk_width
Definition: jpeg2000.h:192
MQ-coder.
uint8_t
uint8_t nb_lengthinc
Definition: jpeg2000.h:169
Jpeg2000TgtNode * zerobits
Definition: jpeg2000.h:183
int64_t disto
Definition: jpeg2000.h:158
Jpeg2000Band * band
Definition: jpeg2000.h:203
uint8_t val
Definition: jpeg2000.h:129
int coord[2][2]
Definition: jpeg2000.h:211
#define JPEG2000_CBLK_TERMALL
Definition: jpeg2000.h:104
uint16_t flags[6156]
Definition: jpeg2000.h:123
void ff_jpeg2000_set_significance(Jpeg2000T1Context *t1, int x, int y, int negative)
Definition: jpeg2000.c:171
uint8_t nonzerobits
Definition: jpeg2000.h:166
uint8_t log2_prec_widths[JPEG2000_MAX_RESLEVELS]
Definition: jpeg2000.h:145
int nb_terminations
Definition: jpeg2000.h:173
int nb_codeblocks_height
Definition: jpeg2000.h:182
uint8_t log2_prec_heights[JPEG2000_MAX_RESLEVELS]
Definition: jpeg2000.h:146
#define t1
Definition: regdef.h:29
int ff_jpeg2000_init_component(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty, Jpeg2000QuantStyle *qntsty, int cbps, int dx, int dy, AVCodecContext *ctx)
Definition: jpeg2000.c:447
#define JPEG2000_MAX_PASSES
Definition: jpeg2000.h:73
Jpeg2000Quantsty
Definition: jpeg2000.h:64
uint8_t flushed[4]
Definition: jpeg2000.h:159
Jpeg2000Cblk * cblk
Definition: jpeg2000.h:185
uint8_t cblk_style
Definition: jpeg2000.h:143
static const uint8_t refctxno_lut[2][2]
Definition: jpeg2000.h:245
uint8_t lblock
Definition: jpeg2000.h:170
int flushed_len
Definition: jpeg2000.h:160
struct Jpeg2000TgtNode * parent
Definition: jpeg2000.h:131
int i_stepsize
Definition: jpeg2000.h:193
int nb_terminationsinc
Definition: jpeg2000.h:174
#define JPEG2000_MAX_RESLEVELS
Definition: jpeg2000.h:71
uint8_t ff_jpeg2000_sigctxno_lut[256][4]
Definition: jpeg2000.c:95
AVFormatContext * ctx
Definition: movenc.c:48
static int needs_termination(int style, int passno)
Definition: jpeg2000.h:274
static int ff_jpeg2000_getsigctxno(int flag, int bandno)
Definition: jpeg2000.h:240
#define JPEG2000_MAX_DECLEVELS
Definition: jpeg2000.h:70
size_t data_allocated
Definition: jpeg2000.h:172
int coord[2][2]
Definition: jpeg2000.h:200
int coord[2][2]
Definition: jpeg2000.h:177
uint8_t * data
Definition: jpeg2000.h:171
uint16_t lengthinc[JPEG2000_MAX_PASSES]
Definition: jpeg2000.h:168
static int ff_jpeg2000_ceildivpow2(int a, int b)
Definition: jpeg2000.h:216
static void comp(unsigned char *dst, ptrdiff_t dst_stride, unsigned char *src, ptrdiff_t src_stride, int add)
Definition: eamad.c:83
int coord[2][2]
Definition: jpeg2000.h:191
Jpeg2000Markers
Definition: jpeg2000.h:38
int data_start[JPEG2000_MAX_PASSES]
Definition: jpeg2000.h:175
int coord_o[2][2]
Definition: jpeg2000.h:212
Libavcodec external API header.
int coord[2][2]
Definition: jpeg2000.h:187
main external API structure.
Definition: avcodec.h:1488
uint8_t vis
Definition: jpeg2000.h:130
uint8_t log2_prec_height
Definition: jpeg2000.h:202
uint16_t length
Definition: jpeg2000.h:167
GLint GLenum type
Definition: opengl_enc.c:105
uint8_t nbands
Definition: jpeg2000.h:199
int decoded_layers
Definition: jpeg2000.h:186
void ff_jpeg2000_init_tier1_luts(void)
Definition: jpeg2000.c:159
Jpeg2000ResLevel * reslevel
Definition: jpeg2000.h:207
static int ff_jpeg2000_ceildiv(int a, int b)
Definition: jpeg2000.h:221
uint8_t expn[JPEG2000_MAX_DECLEVELS *3]
Definition: jpeg2000.h:150
uint8_t prog_order
Definition: jpeg2000.h:144
uint8_t quantsty
Definition: jpeg2000.h:152
uint8_t log2_cblk_width
Definition: jpeg2000.h:137
uint16_t log2_cblk_height
Definition: jpeg2000.h:192
#define JPEG2000_CBLK_BYPASS
Definition: jpeg2000.h:102
uint8_t ff_jpeg2000_xorbit_lut[16][16]
Definition: jpeg2000.c:140
uint16_t rate
Definition: jpeg2000.h:157
void ff_jpeg2000_reinit(Jpeg2000Component *comp, Jpeg2000CodingStyle *codsty)
Definition: jpeg2000.c:557
Jpeg2000Prec * prec
Definition: jpeg2000.h:195
MqcState mqc
Definition: jpeg2000.h:124
static int ff_jpeg2000_getrefctxno(int flag)
Definition: jpeg2000.h:249
uint8_t log2_cblk_height
Definition: jpeg2000.h:137
Definition: mqc.h:40
uint8_t log2_prec_width
Definition: jpeg2000.h:202
uint8_t ff_jpeg2000_sgnctxno_lut[16][16]
Definition: jpeg2000.c:140
Jpeg2000Pass * passes
Definition: jpeg2000.h:176
static int ff_jpeg2000_getsgnctxno(int flag, int *xorbit)
Definition: jpeg2000.h:258