X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=libopenjpeg%2Fj2k.h;h=51907004bc416d15ccbe81dc920e3fa3b10b7be8;hb=a600d8f4e2c21ea0532d4af3dc6374b60b93c583;hp=637b12b02d30f6c8c27b6a6e0d3292404d89a7c0;hpb=77ca0769e397ba25cf2a8d98f14a6e38ef7baba7;p=openjpeg.git

diff --git a/libopenjpeg/j2k.h b/libopenjpeg/j2k.h
index 637b12b0..51907004 100644
--- a/libopenjpeg/j2k.h
+++ b/libopenjpeg/j2k.h
@@ -1,8 +1,12 @@
 /*
- * Copyright (c) 2001-2002, David Janssens
+ * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2007, Professor Benoit Macq
+ * Copyright (c) 2001-2003, David Janssens
  * Copyright (c) 2002-2003, Yannick Verschueren
- * Copyright (c) 2002-2003,  Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
- * All rights reserved. 
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
+ * Copyright (c) 2005, Herve Drolon, FreeImage Team
+ * Copyright (c) 2006-2007, Parvatha Elangovan
+ * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -25,201 +29,987 @@
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
-
-#define VERSION "0.0.8"
-
-#ifdef DAVID_WIN32
-#ifdef LIBJ2K_EXPORTS
-#define LIBJ2K_API __declspec(dllexport)
-#else
-#define LIBJ2K_API __declspec(dllimport)
-#endif
-#else
-#define LIBJ2K_API
-#endif
-
 #ifndef __J2K_H
 #define __J2K_H
+/**
+@file j2k.h
+@brief The JPEG-2000 Codestream Reader/Writer (J2K)
 
-#define J2K_MAXRLVLS 33		/* Number of maximum resolution level authorized                   */
-#define J2K_MAXBANDS (3*J2K_MAXRLVLS+1)	/* Number of maximum sub-band linked to number of resolution level */
+The functions in J2K.C have for goal to read/write the several parts of the codestream: markers and data.
+*/
+
+/** @defgroup J2K J2K - JPEG-2000 codestream reader/writer */
+/*@{*/
 
 #define J2K_CP_CSTY_PRT 0x01
 #define J2K_CP_CSTY_SOP 0x02
 #define J2K_CP_CSTY_EPH 0x04
 #define J2K_CCP_CSTY_PRT 0x01
-#define J2K_CCP_CBLKSTY_LAZY 0x01
-#define J2K_CCP_CBLKSTY_RESET 0x02
-#define J2K_CCP_CBLKSTY_TERMALL 0x04
-#define J2K_CCP_CBLKSTY_VSC 0x08
-#define J2K_CCP_CBLKSTY_PTERM 0x10
-#define J2K_CCP_CBLKSTY_SEGSYM 0x20
+#define J2K_CCP_CBLKSTY_LAZY 0x01     /**< Selective arithmetic coding bypass */
+#define J2K_CCP_CBLKSTY_RESET 0x02    /**< Reset context probabilities on coding pass boundaries */
+#define J2K_CCP_CBLKSTY_TERMALL 0x04  /**< Termination on each coding pass */
+#define J2K_CCP_CBLKSTY_VSC 0x08      /**< Vertically stripe causal context */
+#define J2K_CCP_CBLKSTY_PTERM 0x10    /**< Predictable termination */
+#define J2K_CCP_CBLKSTY_SEGSYM 0x20   /**< Segmentation symbols are used */
 #define J2K_CCP_QNTSTY_NOQNT 0
 #define J2K_CCP_QNTSTY_SIQNT 1
 #define J2K_CCP_QNTSTY_SEQNT 2
 
-typedef struct {
-  int reduce_on;		/* option reduce is used if reduce = 1 */
-  int reduce_value;		/* if option reduce is used -> original dimension divided by 2^value */
-} j2k_option_t;
-
-typedef struct {
-  int dx, dy;			/* XRsiz, YRsiz              */
-  int w, h;			/* width and height of data  */
-  int x0, y0;			/* offset of the component compare to the whole image  */
-  int prec;			/* precision                 */
-  int bpp;			/* deapth of image in bits   */
-  int sgnd;			/* signed                    */
-  int resno_decoded;		/* number of decoded resolution */
-  int factor;			/* number of division by 2 of the out image  compare to the original size of image */
-  int *data;			/* image-component data      */
-} j2k_comp_t;
-
-typedef struct {
-  int x0, y0;			/* XOsiz, YOsiz              */
-  int x1, y1;			/* Xsiz, Ysiz                */
-  int numcomps;			/* number of components      */
-  int index_on;			/* 0 = no index || 1 = index */
-  int color_space;		/* sRGB, Greyscale or YUV */
-  j2k_comp_t *comps;		/* image-components          */
-} j2k_image_t;
-
-typedef struct {
-  int expn;			/* exponent                  */
-  int mant;			/* mantissa                  */
-} j2k_stepsize_t;
-
-typedef struct {
-  int csty;			/* coding style                          */
-  int numresolutions;		/* number of resolutions                 */
-  int cblkw;			/* width of code-blocks                  */
-  int cblkh;			/* height of code-blocks                 */
-  int cblksty;			/* code-block coding style               */
-  int qmfbid;			/* discrete wavelet transform identifier */
-  int qntsty;			/* quantisation style                    */
-  j2k_stepsize_t stepsizes[J2K_MAXBANDS];	/* stepsizes used for quantisation       */
-  int numgbits;			/* number of guard bits                  */
-  int roishift;			/* Region Of Interest shift              */
-  int prcw[J2K_MAXRLVLS];	/* Precinct width                        */
-  int prch[J2K_MAXRLVLS];	/* Precinct height                       */
-} j2k_tccp_t;
-
-typedef struct {
-  int resno0, compno0;
-  int layno1, resno1, compno1;
-  int prg;
-  int tile;
-  char progorder[4];
-} j2k_poc_t;
-
-typedef struct {
-  int first;			/* 1 : first part-tile of a tile                                     */
-  int csty;			/* coding style                                                      */
-  int prg;			/* progression order                                                 */
-  int numlayers;		/* number of layers                                                  */
-  int mct;			/* multi-component transform identifier                              */
-  int rates[100];		/* rates of layers                                                   */
-  int numpocs;			/* number of progression order changes                               */
-  int POC;			/* Precise if a POC marker has been used O:NO, 1:YES                 */
-  j2k_poc_t pocs[32];		/* progression order changes                                         */
-  unsigned char *ppt_data;	/* packet header store there for futur use in t2_decode_packet       */
-  int ppt;			/* If ppt == 1 --> there was a PPT marker for the present tile       */
-  int ppt_store;		/* Use in case of multiple marker PPT (number of info already store) */
-  float distoratio[100];	/* add fixed_quality */
-  j2k_tccp_t *tccps;		/* tile-component coding parameters                                  */
-} j2k_tcp_t;
-
-typedef struct {
-  int JPEG2000_format;		/* 0: J2K   1:JP2 */
-  int intermed_file;		/* 1: Store each encoded tile one by one in the output file (for mega-Images)*/
-  int image_type;		/* 0: PNM, PGM, PPM 1: PGX           */
-  int disto_alloc;		/* Allocation by rate/distortion     */
-  int fixed_alloc;		/* Allocation by fixed layer         */
-  int fixed_quality;		/* add fixed_quality */
-  int reduce_on;		/* option reduce is used if reduce = 1 */
-  int reduce_value;		/* if option reduce is used -> original dimension divided by 2^value */
-  int tx0, ty0;			/* XTOsiz, YTOsiz                    */
-  int tdx, tdy;			/* XTsiz, YTsiz                      */
-  char *comment;		/* comment for coding                */
-  int tw, th;			/* number of tiles in width and heigth */
-  int *tileno;			/* ID number of the tiles present in the codestream */
-  int tileno_size;		/* size of the vector tileno */
-  unsigned char *ppm_data;	/* packet header store there for futur use in t2_decode_packet             */
-  int ppm;			/* If ppm == 1 --> there was a PPM marker for the present tile             */
-  int ppm_store;		/* Use in case of multiple marker PPM (number of info already store)       */
-  int ppm_previous;		/* Use in case of multiple marker PPM (case on non-finished previous info) */
-  j2k_tcp_t *tcps;		/* tile coding parameters                                                  */
-  int *matrice;			/* Fixed layer                                                             */
-} j2k_cp_t;
-
-typedef struct {
-  int start_pos, end_pos;	/* start and end position            */
-  double disto;			/* ADD for Marcela                   */
-} info_packet;			/* Index struct                      */
-
-typedef struct {
-  double *thresh;		/* value of thresh for each layer by tile cfr. Marcela   */
-  int num_tile;			/* Number of Tile                                        */
-  int start_pos;		/* Start position                                        */
-  int end_header;		/* End position of the header                            */
-  int end_pos;			/* End position                                          */
-  int pw[33], ph[33];		/* precinct number for each resolution level             */
-
-  int pdx[33], pdy[33];		/* precinct size (in power of 2), in X and Y for each resolution level */
-  info_packet *packet;		/* information concerning packets inside tile            */
-  int nbpix;			/* add fixed_quality                                     */
-  double distotile;		/* add fixed_quality                                     */
-} info_tile;			/* index struct                                          */
-
-typedef struct {
-  int index_on;
-  double D_max;			/* ADD for Marcela                                       */
-  int num;			/* numero of packet                                      */
-  int index_write;		/* writing the packet inthe index with t2_encode_packets */
-  int Im_w, Im_h;		/* Image width and Height                                */
-  int Prog;			/* progression order                                     */
-  int Tile_x, Tile_y;		/* Tile size in x and y                                  */
-  int tw, th;			/* Number of Tile in X and Y                             */
-  int Comp;			/* Component numbers                                     */
-  int Layer;			/* number of layer                                       */
-  int Decomposition;		/* number of decomposition                               */
-  int Main_head_end;		/* Main header position                                  */
-  int codestream_size;		/* codestream's size                                     */
-  info_tile *tile;		/* information concerning tiles inside image             */
-} info_image;			/* index struct                                          */
-
-/* 
- * Encode an image into a JPEG-2000 codestream
- * i: image to encode
- * cp: coding parameters
- * output: destination buffer or name of the output file when cp->intermed_file==1
- * len: length of destination buffer
- * index : index file name
+/* ----------------------------------------------------------------------- */
+
+#define J2K_MS_SOC 0xff4f	/**< SOC marker value */
+#define J2K_MS_SOT 0xff90	/**< SOT marker value */
+#define J2K_MS_SOD 0xff93	/**< SOD marker value */
+#define J2K_MS_EOC 0xffd9	/**< EOC marker value */
+#define J2K_MS_SIZ 0xff51	/**< SIZ marker value */
+#define J2K_MS_COD 0xff52	/**< COD marker value */
+#define J2K_MS_COC 0xff53	/**< COC marker value */
+#define J2K_MS_RGN 0xff5e	/**< RGN marker value */
+#define J2K_MS_QCD 0xff5c	/**< QCD marker value */
+#define J2K_MS_QCC 0xff5d	/**< QCC marker value */
+#define J2K_MS_POC 0xff5f	/**< POC marker value */
+#define J2K_MS_TLM 0xff55	/**< TLM marker value */
+#define J2K_MS_PLM 0xff57	/**< PLM marker value */
+#define J2K_MS_PLT 0xff58	/**< PLT marker value */
+#define J2K_MS_PPM 0xff60	/**< PPM marker value */
+#define J2K_MS_PPT 0xff61	/**< PPT marker value */
+#define J2K_MS_SOP 0xff91	/**< SOP marker value */
+#define J2K_MS_EPH 0xff92	/**< EPH marker value */
+#define J2K_MS_CRG 0xff63	/**< CRG marker value */
+#define J2K_MS_COM 0xff64	/**< COM marker value */
+
+#define J2K_MS_UNK 0		/**< UNKNOWN marker value */
+
+#ifdef TODO_MS /* FIXME */
+#define J2K_MS_CBD 0xff78	/**< CBD marker value */
+#define J2K_MS_MCC 0xff75	/**< MCC marker value */
+#define J2K_MS_MCT 0xff74	/**< MCT marker value */
+#define J2K_MS_MCO 0xff77	/**< MCO marker value */
+#endif
+
+/* UniPG>> */
+#ifdef USE_JPWL
+#define J2K_MS_EPC 0xff68	/**< EPC marker value (Part 11: JPEG 2000 for Wireless) */
+#define J2K_MS_EPB 0xff66	/**< EPB marker value (Part 11: JPEG 2000 for Wireless) */ 
+#define J2K_MS_ESD 0xff67	/**< ESD marker value (Part 11: JPEG 2000 for Wireless) */ 
+#define J2K_MS_RED 0xff69	/**< RED marker value (Part 11: JPEG 2000 for Wireless) */
+#endif /* USE_JPWL */
+#ifdef USE_JPSEC
+#define J2K_MS_SEC 0xff65    /**< SEC marker value (Part 8: Secure JPEG 2000) */
+#define J2K_MS_INSEC 0xff94  /**< INSEC marker value (Part 8: Secure JPEG 2000) */
+#endif /* USE_JPSEC */
+/* <<UniPG */
+
+
+struct opj_stream_private;
+
+/* ----------------------------------------------------------------------- */
+
+/**
+Values that specify the status of the decoding process when decoding the main header. 
+These values may be combined with a | operator. 
+*/
+typedef enum J2K_STATUS {
+	J2K_STATE_MHSOC  = 0x0001, /**< a SOC marker is expected */
+	J2K_STATE_MHSIZ  = 0x0002, /**< a SIZ marker is expected */
+	J2K_STATE_MH     = 0x0004, /**< the decoding process is in the main header */
+	J2K_STATE_TPHSOT = 0x0008, /**< the decoding process is in a tile part header and expects a SOT marker */
+	J2K_STATE_TPH    = 0x0010, /**< the decoding process is in a tile part header */
+	J2K_STATE_MT     = 0x0020, /**< the EOC marker has just been read */
+	J2K_STATE_NEOC   = 0x0040, /**< the decoding process must not expect a EOC marker because the codestream is truncated */
+
+	J2K_STATE_EOC	 = 0x0100,  /**< the decoding process has encountered the EOC marker */
+	J2K_STATE_ERR    = 0x8000 /**< the decoding process has encountered an error (FIXME warning V1 = 0x0080)*/
+} J2K_STATUS;
+
+/* ----------------------------------------------------------------------- */
+
+/** 
+T2 encoding mode 
+*/
+typedef enum T2_MODE {
+	THRESH_CALC = 0,	/** Function called in Rate allocation process*/
+	FINAL_PASS = 1		/** Function called in Tier 2 process*/
+}J2K_T2_MODE;
+
+/**
+Quantization stepsize
+*/
+typedef struct opj_stepsize {
+	/** exponent */
+	int expn;
+	/** mantissa */
+	int mant;
+} opj_stepsize_t;
+
+//OPJ_V1/**
+//Tile-component coding parameters
+//*/
+//typedef struct opj_tccp {
+//	/** coding style */
+//	int csty;
+//	/** number of resolutions */
+//	int numresolutions;
+//	/** code-blocks width */
+//	int cblkw;
+//	/** code-blocks height */
+//	int cblkh;
+//	/** code-block coding style */
+//	int cblksty;
+//	/** discrete wavelet transform identifier */
+//	int qmfbid;
+//	/** quantisation style */
+//	int qntsty;
+//	/** stepsizes used for quantization */
+//	opj_stepsize_t stepsizes[J2K_MAXBANDS];
+//	/** number of guard bits */
+//	int numgbits;
+//	/** Region Of Interest shift */
+//	int roishift;
+//	/** precinct width */
+//	int prcw[J2K_MAXRLVLS];
+//	/** precinct height */
+//	int prch[J2K_MAXRLVLS];
+//} opj_tccp_t;
+
+/**
+Tile-component coding parameters
+*/
+typedef struct opj_tccp
+{
+	/** coding style */
+	OPJ_UINT32 csty;
+	/** number of resolutions */
+	OPJ_UINT32 numresolutions;
+	/** code-blocks width */
+	OPJ_UINT32 cblkw;
+	/** code-blocks height */
+	OPJ_UINT32 cblkh;
+	/** code-block coding style */
+	OPJ_UINT32 cblksty;
+	/** discrete wavelet transform identifier */
+	OPJ_UINT32 qmfbid;
+	/** quantisation style */
+	OPJ_UINT32 qntsty;
+	/** stepsizes used for quantization */
+	opj_stepsize_t stepsizes[J2K_MAXBANDS];
+	/** number of guard bits */
+	OPJ_UINT32 numgbits;
+	/** Region Of Interest shift */
+	OPJ_INT32 roishift;
+	/** precinct width */
+	OPJ_UINT32 prcw[J2K_MAXRLVLS];
+	/** precinct height */
+	OPJ_UINT32 prch[J2K_MAXRLVLS];
+	/** the dc_level_shift **/
+	OPJ_INT32 m_dc_level_shift;
+}
+opj_tccp_t;
+
+
+/**
+Tile coding parameters : 
+this structure is used to store coding/decoding parameters common to all
+tiles (information like COD, COC in main header)
+*/
+typedef struct opj_tcp {
+	/** 1 : first part-tile of a tile */
+	int first;
+	/** coding style */
+	int csty;
+	/** progression order */
+	OPJ_PROG_ORDER prg;
+	/** number of layers */
+	int numlayers;
+	/** multi-component transform identifier */
+	int mct;
+	/** rates of layers */
+	float rates[100];
+	/** number of progression order changes */
+	int numpocs;
+	/** indicates if a POC marker has been used O:NO, 1:YES */
+	int POC;
+	/** progression order changes */
+	opj_poc_t pocs[32];
+	/** packet header store there for futur use in t2_decode_packet */
+	unsigned char *ppt_data;
+	/** pointer remaining on the first byte of the first header if ppt is used */
+	unsigned char *ppt_data_first;
+	/** If ppt == 1 --> there was a PPT marker for the present tile */
+	int ppt;
+	/** used in case of multiple marker PPT (number of info already stored) */
+	int ppt_store;
+	/** ppmbug1 */
+	int ppt_len;
+	/** add fixed_quality */
+	float distoratio[100];
+	/** tile-component coding parameters */
+	opj_tccp_t *tccps;
+} opj_tcp_t;
+
+
+/**
+ * Type of data for storing the MCT data
  */
-LIBJ2K_API int j2k_encode(j2k_image_t * i, j2k_cp_t * cp, char *output,
-			  int len, char *index);
+typedef enum MCT_ELEMENT_TYPE
+{
+	MCT_TYPE_INT16 = 0,		/** MCT data is stored as signed shorts*/
+	MCT_TYPE_INT32 = 1,		/** MCT data is stored as signed integers*/
+	MCT_TYPE_FLOAT = 2,		/** MCT data is stored as floats*/
+	MCT_TYPE_DOUBLE = 3		/** MCT data is stored as doubles*/
+} J2K_MCT_ELEMENT_TYPE;
 
-/* LIBJ2K_API int j2k_encode(j2k_image_t *i, j2k_cp_t *cp,unsigned char *dest, int len); */
-/*
- * Decode an image from a JPEG-2000 codestream
- * src: source buffer
- * len: length of source buffer
- * i: decode image
- * cp: coding parameters that were used to encode the image
+/**
+ * Type of data for storing the MCT data
  */
-LIBJ2K_API int j2k_decode(unsigned char *src, int len, j2k_image_t ** img,
-			  j2k_cp_t ** cp, j2k_option_t option);
+typedef enum MCT_ARRAY_TYPE
+{
+	MCT_TYPE_DEPENDENCY = 0,
+	MCT_TYPE_DECORRELATION = 1,
+	MCT_TYPE_OFFSET = 2
+} J2K_MCT_ARRAY_TYPE;
 
+typedef struct opj_mct_data
+{
+	J2K_MCT_ELEMENT_TYPE m_element_type;
+	J2K_MCT_ARRAY_TYPE	 m_array_type;
+	OPJ_UINT32			 m_index;
+	OPJ_BYTE *			 m_data;
+	OPJ_UINT32			 m_data_size;
+}
+opj_mct_data_t;
 
-/*
- * Decode an image form a JPT-stream (JPEG 2000, JPIP)
- * src: source buffer
- * len: length of source buffer
- * i: decode image
- * cp: coding parameters that were used to encode the image
+typedef struct opj_simple_mcc_decorrelation_data
+{
+	OPJ_UINT32			 m_index;
+	OPJ_UINT32			 m_nb_comps;
+	opj_mct_data_t *	 m_decorrelation_array;
+	opj_mct_data_t *	 m_offset_array;
+	OPJ_UINT32			 m_is_irreversible : 1;
+}
+opj_simple_mcc_decorrelation_data_t;
+
+/**
+Tile coding parameters :
+this structure is used to store coding/decoding parameters common to all
+tiles (information like COD, COC in main header)
+*/
+typedef struct opj_tcp_v2
+{
+	/** coding style */
+	OPJ_UINT32 csty;
+	/** progression order */
+	OPJ_PROG_ORDER prg;
+	/** number of layers */
+	OPJ_UINT32 numlayers;
+	OPJ_UINT32 num_layers_to_decode;
+	/** multi-component transform identifier */
+	OPJ_UINT32 mct;
+	/** rates of layers */
+	OPJ_FLOAT32 rates[100];
+	/** number of progression order changes */
+	OPJ_UINT32 numpocs;
+	/** progression order changes */
+	opj_poc_t pocs[32];
+	/** packet header store there for futur use in t2_decode_packet */
+	OPJ_BYTE *ppt_data;
+	/** used to keep a track of the allocated memory */
+	OPJ_BYTE *ppt_buffer;
+	/** Number of bytes stored inside ppt_data*/
+	OPJ_UINT32 ppt_data_size;
+	/** size of ppt_data*/
+	OPJ_UINT32 ppt_len;
+	/** add fixed_quality */
+	OPJ_FLOAT32 distoratio[100];
+	/** tile-component coding parameters */
+	opj_tccp_t *tccps;
+	/** number of tile parts for the tile. */
+	OPJ_UINT32 m_nb_tile_parts;
+	/** data for the tile */
+	OPJ_BYTE *		m_data;
+	/** size of data */
+	OPJ_UINT32		m_data_size;
+	/** encoding norms */
+	OPJ_FLOAT64 *	mct_norms;
+	/** the mct decoding matrix */
+	OPJ_FLOAT32 *	m_mct_decoding_matrix;
+	/** the mct coding matrix */
+	OPJ_FLOAT32 *	m_mct_coding_matrix;
+	/** mct records */
+	opj_mct_data_t * m_mct_records;
+	/** the number of mct records. */
+	OPJ_UINT32 m_nb_mct_records;
+	/** the max number of mct records. */
+	OPJ_UINT32 m_nb_max_mct_records;
+	/** mcc records */
+	opj_simple_mcc_decorrelation_data_t * m_mcc_records;
+	/** the number of mct records. */
+	OPJ_UINT32 m_nb_mcc_records;
+	/** the max number of mct records. */
+	OPJ_UINT32 m_nb_max_mcc_records;
+
+
+
+	/***** FLAGS *******/
+	/** If ppt == 1 --> there was a PPT marker for the present tile */
+	OPJ_UINT32 ppt : 1;
+	/** indicates if a POC marker has been used O:NO, 1:YES */
+	OPJ_UINT32 POC : 1;
+} opj_tcp_v2_t;
+
+
+
+
+
+/**
+Coding parameters
+*/
+typedef struct opj_cp {
+	/** Digital cinema profile*/
+	OPJ_CINEMA_MODE cinema;
+	/** Maximum rate for each component. If == 0, component size limitation is not considered */
+	int max_comp_size;
+	/** Size of the image in bits*/
+	int img_size;
+	/** Rsiz*/
+	OPJ_RSIZ_CAPABILITIES rsiz;
+	/** Enabling Tile part generation*/
+	char tp_on;
+	/** Flag determining tile part generation*/
+	char tp_flag;
+	/** Position of tile part flag in progression order*/
+	int tp_pos;
+	/** allocation by rate/distortion */
+	int disto_alloc;
+	/** allocation by fixed layer */
+	int fixed_alloc;
+	/** add fixed_quality */
+	int fixed_quality;
+	/** if != 0, then original dimension divided by 2^(reduce); if == 0 or not used, image is decoded to the full resolution */
+	int reduce;
+	/** if != 0, then only the first "layer" layers are decoded; if == 0 or not used, all the quality layers are decoded */
+	int layer;
+	/** if == NO_LIMITATION, decode entire codestream; if == LIMIT_TO_MAIN_HEADER then only decode the main header */
+	OPJ_LIMIT_DECODING limit_decoding;
+	/** XTOsiz */
+	int tx0;
+	/** YTOsiz */
+	int ty0;
+	/** XTsiz */
+	int tdx;
+	/** YTsiz */
+	int tdy;
+	/** comment for coding */
+	char *comment;
+	/** number of tiles in width */
+	int tw;
+	/** number of tiles in heigth */
+	int th;
+	/** ID number of the tiles present in the codestream */
+	int *tileno;
+	/** size of the vector tileno */
+	int tileno_size;
+	/** packet header store there for futur use in t2_decode_packet */
+	unsigned char *ppm_data;
+	/** pointer remaining on the first byte of the first header if ppm is used */
+	unsigned char *ppm_data_first;
+	/** if ppm == 1 --> there was a PPM marker for the present tile */
+	int ppm;
+	/** use in case of multiple marker PPM (number of info already store) */
+	int ppm_store;
+	/** use in case of multiple marker PPM (case on non-finished previous info) */
+	int ppm_previous;
+	/** ppmbug1 */
+	int ppm_len;
+	/** tile coding parameters */
+	opj_tcp_t *tcps;
+	/** fixed layer */
+	int *matrice;
+/* UniPG>> */
+#ifdef USE_JPWL
+	/** enables writing of EPC in MH, thus activating JPWL */
+	opj_bool epc_on;
+	/** enables writing of EPB, in case of activated JPWL */
+	opj_bool epb_on;
+	/** enables writing of ESD, in case of activated JPWL */
+	opj_bool esd_on;
+	/** enables writing of informative techniques of ESD, in case of activated JPWL */
+	opj_bool info_on;
+	/** enables writing of RED, in case of activated JPWL */
+	opj_bool red_on;
+	/** error protection method for MH (0,1,16,32,37-128) */
+	int hprot_MH;
+	/** tile number of header protection specification (>=0) */
+	int hprot_TPH_tileno[JPWL_MAX_NO_TILESPECS];
+	/** error protection methods for TPHs (0,1,16,32,37-128) */
+	int hprot_TPH[JPWL_MAX_NO_TILESPECS];
+	/** tile number of packet protection specification (>=0) */
+	int pprot_tileno[JPWL_MAX_NO_PACKSPECS];
+	/** packet number of packet protection specification (>=0) */
+	int pprot_packno[JPWL_MAX_NO_PACKSPECS];
+	/** error protection methods for packets (0,1,16,32,37-128) */
+	int pprot[JPWL_MAX_NO_PACKSPECS];
+	/** enables writing of ESD, (0/2/4 bytes) */
+	int sens_size;
+	/** sensitivity addressing size (0=auto/2/4 bytes) */
+	int sens_addr;
+	/** sensitivity range (0-3) */
+	int sens_range;
+	/** sensitivity method for MH (-1,0-7) */
+	int sens_MH;
+	/** tile number of sensitivity specification (>=0) */
+	int sens_TPH_tileno[JPWL_MAX_NO_TILESPECS];
+	/** sensitivity methods for TPHs (-1,0-7) */
+	int sens_TPH[JPWL_MAX_NO_TILESPECS];
+	/** enables JPWL correction at the decoder */
+	opj_bool correct;
+	/** expected number of components at the decoder */
+	int exp_comps;
+	/** maximum number of tiles at the decoder */
+	int max_tiles;
+#endif /* USE_JPWL */
+/* <<UniPG */
+} opj_cp_t;
+
+typedef struct opj_encoding_param
+{
+	/** Digital cinema profile*/
+	OPJ_CINEMA_MODE m_cinema;
+	/** Maximum rate for each component. If == 0, component size limitation is not considered */
+	OPJ_UINT32 m_max_comp_size;
+	/** Position of tile part flag in progression order*/
+	OPJ_INT32 m_tp_pos;
+	/** fixed layer */
+	OPJ_INT32 *m_matrice;
+	/** Flag determining tile part generation*/
+	OPJ_BYTE m_tp_flag;
+	/** allocation by rate/distortion */
+	OPJ_UINT32 m_disto_alloc : 1;
+	/** allocation by fixed layer */
+	OPJ_UINT32 m_fixed_alloc : 1;
+	/** add fixed_quality */
+	OPJ_UINT32 m_fixed_quality : 1;
+	/** Enabling Tile part generation*/
+	OPJ_UINT32 m_tp_on : 1;
+}
+opj_encoding_param_t;
+
+typedef struct opj_decoding_param
+{
+	/** if != 0, then original dimension divided by 2^(reduce); if == 0 or not used, image is decoded to the full resolution */
+	OPJ_UINT32 m_reduce;
+	/** if != 0, then only the first "layer" layers are decoded; if == 0 or not used, all the quality layers are decoded */
+	OPJ_UINT32 m_layer;
+}
+opj_decoding_param_t;
+
+
+/**
+Coding parameters
+*/
+typedef struct opj_cp_v2
+{
+	/** Size of the image in bits*/
+	/*int img_size;*/
+	/** Rsiz*/
+	OPJ_RSIZ_CAPABILITIES rsiz;
+	/** XTOsiz */
+	OPJ_UINT32 tx0; // MSD see norm
+	/** YTOsiz */
+	OPJ_UINT32 ty0; // MSD see norm
+	/** XTsiz */
+	OPJ_UINT32 tdx;
+	/** YTsiz */
+	OPJ_UINT32 tdy;
+	/** comment */
+	OPJ_CHAR *comment;
+	/** number of tiles in width */
+	OPJ_UINT32 tw;
+	/** number of tiles in heigth */
+	OPJ_UINT32 th;
+
+
+
+
+	/** packet header store there for futur use in t2_decode_packet */
+	OPJ_BYTE *ppm_data;
+	/** size of the ppm_data*/
+	OPJ_UINT32 ppm_len;
+	/** size of the ppm_data*/
+	OPJ_UINT32 ppm_data_read;
+
+	OPJ_BYTE *ppm_data_current;
+
+	/** packet header storage original buffer */
+	OPJ_BYTE *ppm_buffer;
+	/** pointer remaining on the first byte of the first header if ppm is used */
+	OPJ_BYTE *ppm_data_first;
+	/** Number of bytes actually stored inside the ppm_data */
+	OPJ_UINT32 ppm_data_size;
+	/** use in case of multiple marker PPM (number of info already store) */
+	OPJ_INT32 ppm_store;
+	/** use in case of multiple marker PPM (case on non-finished previous info) */
+	OPJ_INT32 ppm_previous;
+
+	/** tile coding parameters */
+	opj_tcp_v2_t *tcps;
+	union
+	{
+		opj_decoding_param_t m_dec;
+		opj_encoding_param_t m_enc;
+	}
+	m_specific_param;
+
+
+/* UniPG>> */
+#ifdef USE_JPWL
+	/** enables writing of EPC in MH, thus activating JPWL */
+	opj_bool epc_on;
+	/** enables writing of EPB, in case of activated JPWL */
+	opj_bool epb_on;
+	/** enables writing of ESD, in case of activated JPWL */
+	opj_bool esd_on;
+	/** enables writing of informative techniques of ESD, in case of activated JPWL */
+	opj_bool info_on;
+	/** enables writing of RED, in case of activated JPWL */
+	opj_bool red_on;
+	/** error protection method for MH (0,1,16,32,37-128) */
+	int hprot_MH;
+	/** tile number of header protection specification (>=0) */
+	int hprot_TPH_tileno[JPWL_MAX_NO_TILESPECS];
+	/** error protection methods for TPHs (0,1,16,32,37-128) */
+	int hprot_TPH[JPWL_MAX_NO_TILESPECS];
+	/** tile number of packet protection specification (>=0) */
+	int pprot_tileno[JPWL_MAX_NO_PACKSPECS];
+	/** packet number of packet protection specification (>=0) */
+	int pprot_packno[JPWL_MAX_NO_PACKSPECS];
+	/** error protection methods for packets (0,1,16,32,37-128) */
+	int pprot[JPWL_MAX_NO_PACKSPECS];
+	/** enables writing of ESD, (0/2/4 bytes) */
+	int sens_size;
+	/** sensitivity addressing size (0=auto/2/4 bytes) */
+	int sens_addr;
+	/** sensitivity range (0-3) */
+	int sens_range;
+	/** sensitivity method for MH (-1,0-7) */
+	int sens_MH;
+	/** tile number of sensitivity specification (>=0) */
+	int sens_TPH_tileno[JPWL_MAX_NO_TILESPECS];
+	/** sensitivity methods for TPHs (-1,0-7) */
+	int sens_TPH[JPWL_MAX_NO_TILESPECS];
+	/** enables JPWL correction at the decoder */
+	opj_bool correct;
+	/** expected number of components at the decoder */
+	int exp_comps;
+	/** maximum number of tiles at the decoder */
+	int max_tiles;
+#endif /* USE_JPWL */
+
+	/******** FLAGS *********/
+	/** if ppm == 1 --> there was a PPM marker*/
+	OPJ_UINT32 ppm : 1;
+	/** tells if the parameter is a coding or decoding one */
+	OPJ_UINT32 m_is_decoder : 1;
+/* <<UniPG */
+} opj_cp_v2_t;
+
+
+typedef struct opj_j2k_dec
+{
+	/** locate in which part of the codestream the decoder is (main header, tile header, end) */
+	OPJ_UINT32 m_state;
+	/**
+	 * store decoding parameters common to all tiles (information like COD, COC in main header)
+	 */
+	opj_tcp_v2_t *m_default_tcp;
+	OPJ_BYTE  *m_header_data;
+	OPJ_UINT32 m_header_data_size;
+	/** to tell the tile part length */
+	OPJ_UINT32 m_sot_length;
+	/** Only tiles index in the correct range will be decoded.*/
+	OPJ_UINT32 m_start_tile_x;
+	OPJ_UINT32 m_start_tile_y;
+	OPJ_UINT32 m_end_tile_x;
+	OPJ_UINT32 m_end_tile_y;
+	/** to tell that a tile can be decoded. */
+	OPJ_UINT32 m_can_decode			: 1;
+	OPJ_UINT32 m_discard_tiles		: 1;
+	OPJ_UINT32 m_skip_data			: 1;
+
+} opj_j2k_dec_t;
+
+typedef struct opj_j2k_enc
+{
+	/** Tile part number, regardless of poc, for each new poc, tp is reset to 1*/
+	OPJ_UINT32 m_current_poc_tile_part_number; // tp_num
+
+	/** Tile part number currently coding, taking into account POC. m_current_tile_part_number holds the total number of tile parts while encoding the last tile part.*/
+	OPJ_UINT32 m_current_tile_part_number; //cur_tp_num
+
+	/**
+	locate the start position of the TLM marker
+	after encoding the tilepart, a jump (in j2k_write_sod) is done to the TLM marker to store the value of its length.
+	*/
+	OPJ_SIZE_T m_tlm_start;
+	/**
+	 * Stores the sizes of the tlm.
+	 */
+	OPJ_BYTE * m_tlm_sot_offsets_buffer;
+	/**
+	 * The current offset of the tlm buffer.
+	 */
+	OPJ_BYTE * m_tlm_sot_offsets_current;
+
+	/** Total num of tile parts in whole image = num tiles* num tileparts in each tile*/
+	/** used in TLMmarker*/
+	OPJ_UINT32 m_total_tile_parts;	 // totnum_tp
+
+	/* encoded data for a tile */
+	OPJ_BYTE * m_encoded_tile_data;
+
+	/* size of the encoded_data */
+	OPJ_UINT32 m_encoded_tile_size;
+
+	/* encoded data for a tile */
+	OPJ_BYTE * m_header_tile_data;
+
+	/* size of the encoded_data */
+	OPJ_UINT32 m_header_tile_data_size;
+
+
+} opj_j2k_enc_t;
+
+/**
+JPEG-2000 codestream reader/writer
+*/
+typedef struct opj_j2k {
+	/** codec context */
+	opj_common_ptr cinfo;
+
+	/** locate in which part of the codestream the decoder is (main header, tile header, end) */
+	int state;
+	/** number of the tile curently concern by coding/decoding */
+	int curtileno;
+	/** Tile part number*/
+	int tp_num;
+	/** Tilepart number currently coding*/
+	int cur_tp_num;
+	/** Total number of tileparts of the current tile*/
+	int *cur_totnum_tp;
+	/**
+	locate the start position of the TLM marker  
+	after encoding the tilepart, a jump (in j2k_write_sod) is done to the TLM marker to store the value of its length. 
+	*/
+	int tlm_start;
+	/** Total num of tile parts in whole image = num tiles* num tileparts in each tile*/
+	/** used in TLMmarker*/
+	int totnum_tp;	
+	/** 
+	locate the position of the end of the tile in the codestream, 
+	used to detect a truncated codestream (in j2k_read_sod)
+	*/
+	unsigned char *eot;
+	/**
+	locate the start position of the SOT marker of the current coded tile:  
+	after encoding the tile, a jump (in j2k_write_sod) is done to the SOT marker to store the value of its length. 
+	*/
+	int sot_start;
+	int sod_start;
+	/**
+	as the J2K-file is written in several parts during encoding, 
+	it enables to make the right correction in position return by cio_tell
+	*/
+	int pos_correction;
+	/** array used to store the data of each tile */
+	unsigned char **tile_data;
+	/** array used to store the length of each tile */
+	int *tile_len;
+	/** 
+	decompression only : 
+	store decoding parameters common to all tiles (information like COD, COC in main header)
+	*/
+	opj_tcp_t *default_tcp;
+	/** pointer to the encoded / decoded image */
+	opj_image_t *image;
+	/** pointer to the coding parameters */
+	opj_cp_t *cp;
+	/** helper used to write the index file */
+	opj_codestream_info_t *cstr_info;
+	/** pointer to the byte i/o stream */
+	opj_cio_t *cio;
+} opj_j2k_t;
+
+struct opj_tcd_v2;
+/**
+JPEG-2000 codestream reader/writer
+*/
+typedef struct opj_j2k_v2
+{
+	/* J2K codestream is decoded*/
+	opj_bool m_is_decoder;
+
+	/* FIXME DOC*/
+	union
+	{
+		opj_j2k_dec_t m_decoder;
+		opj_j2k_enc_t m_encoder;
+	}
+	m_specific_param;
+
+	/** number of the tile curently concern by coding/decoding */
+	OPJ_UINT32 m_current_tile_number;
+
+	/** pointer to the encoded / decoded image */
+	//opj_image_t *m_image;
+	opj_image_header_t* m_image_header;
+
+	/** Coding parameters */
+	opj_cp_v2_t m_cp;
+
+	/** the list of procedures to exec **/
+	struct opj_procedure_list *	m_procedure_list;
+
+	/** the list of validation procedures to follow to make sure the code is valid **/
+	struct opj_procedure_list *	m_validation_list;
+
+	/** helper used to write the index file */
+	opj_codestream_index_t *cstr_index;
+
+	/** the current tile coder/decoder **/
+	struct opj_tcd_v2 *	m_tcd;
+	//opj_tcd_v2_t *	m_tcd;
+
+
+
+}
+opj_j2k_v2_t;
+
+
+
+
+/** @name Exported functions */
+/*@{*/
+/* ----------------------------------------------------------------------- */
+/**
+Creates a J2K decompression structure
+@param cinfo Codec context info
+@return Returns a handle to a J2K decompressor if successful, returns NULL otherwise
+*/
+opj_j2k_t* j2k_create_decompress(opj_common_ptr cinfo);
+/**
+Destroy a J2K decompressor handle
+@param j2k J2K decompressor handle to destroy
+*/
+void j2k_destroy_decompress(opj_j2k_t *j2k);
+/**
+Setup the decoder decoding parameters using user parameters.
+Decoding parameters are returned in j2k->cp. 
+@param j2k J2K decompressor handle
+@param parameters decompression parameters
+*/
+void j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters);
+
+void j2k_setup_decoder_v2(opj_j2k_v2_t *j2k, opj_dparameters_t *parameters);
+
+/**
+Decode an image from a JPEG-2000 codestream
+@param j2k J2K decompressor handle
+@param cio Input buffer stream
+@param cstr_info Codestream information structure if required, NULL otherwise
+@return Returns a decoded image if successful, returns NULL otherwise
+*/
+opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio, opj_codestream_info_t *cstr_info);
+/**
+Decode an image form a JPT-stream (JPEG 2000, JPIP)
+@param j2k J2K decompressor handle
+@param cio Input buffer stream
+@param cstr_info Codestream information structure if required, NULL otherwise
+@return Returns a decoded image if successful, returns NULL otherwise
+*/
+opj_image_t* j2k_decode_jpt_stream(opj_j2k_t *j2k, opj_cio_t *cio, opj_codestream_info_t *cstr_info);
+/**
+Creates a J2K compression structure
+@param cinfo Codec context info
+@return Returns a handle to a J2K compressor if successful, returns NULL otherwise
+*/
+opj_j2k_t* j2k_create_compress(opj_common_ptr cinfo);
+
+/**
+Creates a J2K compression structure
+@param cinfo Codec context info
+@return Returns a handle to a J2K compressor if successful, returns NULL otherwise
+*/
+opj_j2k_v2_t* j2k_create_compress_v2();
+
+/**
+Destroy a J2K compressor handle
+@param j2k J2K compressor handle to destroy
+*/
+void j2k_destroy_compress(opj_j2k_t *j2k);
+/**
+Setup the encoder parameters using the current image and using user parameters. 
+Coding parameters are returned in j2k->cp. 
+@param j2k J2K compressor handle
+@param parameters compression parameters
+@param image input filled image
+*/
+void j2k_setup_encoder(opj_j2k_t *j2k, opj_cparameters_t *parameters, opj_image_t *image);
+/**
+Converts an enum type progression order to string type
+*/
+char *j2k_convert_progression_order(OPJ_PROG_ORDER prg_order);
+/**
+Encode an image into a JPEG-2000 codestream
+@param j2k J2K compressor handle
+@param cio Output buffer stream
+@param image Image to encode
+@param cstr_info Codestream information structure if required, NULL otherwise
+@return Returns true if successful, returns false otherwise
+*/
+opj_bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info);
+
+/* ----------------------------------------------------------------------- */
+/*@}*/
+
+/*@}*/
+
+/**
+ * Ends the decompression procedures and possibiliy add data to be read after the
+ * codestream.
+ */
+opj_bool j2k_end_decompress(opj_j2k_v2_t *j2k, struct opj_stream_private *cio, struct opj_event_mgr * p_manager);
+
+/**
+ * Reads a jpeg2000 codestream header structure.
  *
+ * @param cio the stream to read data from.
+ * @param p_j2k the jpeg2000 codec.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the box is valid.
  */
-int j2k_decode_jpt_stream(unsigned char *src, int len, j2k_image_t ** img,
-			  j2k_cp_t ** cp);
+opj_bool j2k_read_header(	struct opj_stream_private *p_stream,
+							opj_j2k_v2_t* p_j2k,
+							opj_image_header_t* p_img_header,
+							struct opj_event_mgr* p_manager );
 
-#endif
+
+/**
+ * Destroys a jpeg2000 codec.
+ *
+ * @param	p_j2k	the jpeg20000 structure to destroy.
+ */
+void j2k_destroy (opj_j2k_v2_t *p_j2k);
+
+/**
+ * Decode tile data.
+ * @param	p_j2k		the jpeg2000 codec.
+ * @param	p_stream			the stream to write data to.
+ * @param	p_manager	the user event manager.
+ */
+opj_bool j2k_decode_tile (
+					opj_j2k_v2_t * p_j2k,
+					OPJ_UINT32 p_tile_index,
+					OPJ_BYTE * p_data,
+					OPJ_UINT32 p_data_size,
+					struct opj_stream_private *p_stream,
+					struct opj_event_mgr * p_manager
+					);
+
+/**
+ * Reads a tile header.
+ * @param	p_j2k		the jpeg2000 codec.
+ * @param	p_stream			the stream to write data to.
+ * @param	p_manager	the user event manager.
+ */
+opj_bool j2k_read_tile_header (
+					 opj_j2k_v2_t * p_j2k,
+					 OPJ_UINT32 * p_tile_index,
+					 OPJ_UINT32 * p_data_size,
+					 OPJ_INT32 * p_tile_x0,
+					 OPJ_INT32 * p_tile_y0,
+					 OPJ_INT32 * p_tile_x1,
+					 OPJ_INT32 * p_tile_y1,
+					 OPJ_UINT32 * p_nb_comps,
+					 opj_bool * p_go_on,
+					 struct opj_stream_private *p_stream,
+					 struct opj_event_mgr * p_manager
+					);
+
+
+/**
+ * Sets the given area to be decoded. This function should be called right after opj_read_header and before any tile header reading.
+ *
+ * @param	p_j2k			the jpeg2000 codec.
+ * @param	p_start_x		the left position of the rectangle to decode (in image coordinates).
+ * @param	p_end_x			the right position of the rectangle to decode (in image coordinates).
+ * @param	p_start_y		the up position of the rectangle to decode (in image coordinates).
+ * @param	p_end_y			the bottom position of the rectangle to decode (in image coordinates).
+ * @param	p_manager		the user event manager
+ *
+ * @return	true			if the area could be set.
+ */
+opj_bool j2k_set_decode_area(	opj_j2k_v2_t *p_j2k,
+								OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
+								OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
+								struct opj_event_mgr * p_manager );
+
+/**
+ * Creates a J2K decompression structure.
+ *
+ * @return a handle to a J2K decompressor if successful, NULL otherwise.
+ */
+opj_j2k_v2_t* j2k_create_decompress_v2();
+
+
+/**
+ * Dump some elements from the J2K decompression structure .
+ *
+ *@param p_j2k				the jpeg2000 codec.
+ *@param flag				flag to describe what elments are dump.
+ *@param out_stream			output stream where dump the elements.
+ *
+*/
+void j2k_dump (opj_j2k_v2_t* p_j2k, OPJ_INT32 flag, FILE* out_stream);
+
+
+
+/**
+ * Dump an image header structure.
+ *
+ *@param img_header			the image header to dump.
+ *@param dev_dump_flag		flag to describe if we are in the case of this function is use outside j2k_dump function
+ *@param out_stream			output stream where dump the elements.
+ */
+void j2k_dump_image_header(opj_image_header_t* img_header, opj_bool dev_dump_flag, FILE* out_stream);
+
+/**
+ * Dump a component image header structure.
+ *
+ *@param comp_header		the component image header to dump.
+ *@param dev_dump_flag		flag to describe if we are in the case of this function is use outside j2k_dump function
+ *@param out_stream			output stream where dump the elements.
+ */
+void j2k_dump_image_comp_header(opj_image_comp_header_t* comp_header, opj_bool dev_dump_flag, FILE* out_stream);
+
+/**
+ * Get the codestream info from a JPEG2000 codec.
+ *
+ *@param	p_j2k				the component image header to dump.
+ *
+ *@return	the codestream information extract from the jpg2000 codec
+ */
+opj_codestream_info_v2_t* j2k_get_cstr_info(opj_j2k_v2_t* p_j2k);
+
+/**
+ * Get the codestream index from a JPEG2000 codec.
+ *
+ *@param	p_j2k				the component image header to dump.
+ *
+ *@return	the codestream index extract from the jpg2000 codec
+ */
+opj_codestream_index_t* j2k_get_cstr_index(opj_j2k_v2_t* p_j2k);
+
+
+
+#endif /* __J2K_H */