-/*\r
- * Copyright (c) 2001-2003, David Janssens\r
- * Copyright (c) 2002-2003, Yannick Verschueren\r
- * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe\r
- * Copyright (c) 2005, Hervé Drolon, FreeImage Team\r
- * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium\r
- * All rights reserved.\r
- *\r
- * Redistribution and use in source and binary forms, with or without\r
- * modification, are permitted provided that the following conditions\r
- * are met:\r
- * 1. Redistributions of source code must retain the above copyright\r
- * notice, this list of conditions and the following disclaimer.\r
- * 2. Redistributions in binary form must reproduce the above copyright\r
- * notice, this list of conditions and the following disclaimer in the\r
- * documentation and/or other materials provided with the distribution.\r
- *\r
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'\r
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE\r
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
- * POSSIBILITY OF SUCH DAMAGE.\r
- */\r
-#ifndef __J2K_H\r
-#define __J2K_H\r
-/**\r
-@file j2k.h\r
-@brief The JPEG-2000 Codestream Reader/Writer (J2K)\r
-\r
-The functions in J2K.C have for goal to read/write the several parts of the codestream: markers and data.\r
-*/\r
-\r
-/** @defgroup J2K J2K - JPEG-2000 codestream reader/writer */\r
-/*@{*/\r
-\r
-#define J2K_CP_CSTY_PRT 0x01\r
-#define J2K_CP_CSTY_SOP 0x02\r
-#define J2K_CP_CSTY_EPH 0x04\r
-#define J2K_CCP_CSTY_PRT 0x01\r
-#define J2K_CCP_CBLKSTY_LAZY 0x01\r
-#define J2K_CCP_CBLKSTY_RESET 0x02\r
-#define J2K_CCP_CBLKSTY_TERMALL 0x04\r
-#define J2K_CCP_CBLKSTY_VSC 0x08\r
-#define J2K_CCP_CBLKSTY_PTERM 0x10\r
-#define J2K_CCP_CBLKSTY_SEGSYM 0x20\r
-#define J2K_CCP_QNTSTY_NOQNT 0\r
-#define J2K_CCP_QNTSTY_SIQNT 1\r
-#define J2K_CCP_QNTSTY_SEQNT 2\r
-\r
-/* ----------------------------------------------------------------------- */\r
-\r
-#define J2K_MS_SOC 0xff4f /**< SOC marker value */\r
-#define J2K_MS_SOT 0xff90 /**< SOT marker value */\r
-#define J2K_MS_SOD 0xff93 /**< SOD marker value */\r
-#define J2K_MS_EOC 0xffd9 /**< EOC marker value */\r
-#define J2K_MS_SIZ 0xff51 /**< SIZ marker value */\r
-#define J2K_MS_COD 0xff52 /**< COD marker value */\r
-#define J2K_MS_COC 0xff53 /**< COC marker value */\r
-#define J2K_MS_RGN 0xff5e /**< RGN marker value */\r
-#define J2K_MS_QCD 0xff5c /**< QCD marker value */\r
-#define J2K_MS_QCC 0xff5d /**< QCC marker value */\r
-#define J2K_MS_POC 0xff5f /**< POC marker value */\r
-#define J2K_MS_TLM 0xff55 /**< TLM marker value */\r
-#define J2K_MS_PLM 0xff57 /**< PLM marker value */\r
-#define J2K_MS_PLT 0xff58 /**< PLT marker value */\r
-#define J2K_MS_PPM 0xff60 /**< PPM marker value */\r
-#define J2K_MS_PPT 0xff61 /**< PPT marker value */\r
-#define J2K_MS_SOP 0xff91 /**< SOP marker value */\r
-#define J2K_MS_EPH 0xff92 /**< EPH marker value */\r
-#define J2K_MS_CRG 0xff63 /**< CRG marker value */\r
-#define J2K_MS_COM 0xff64 /**< COM marker value */\r
-\r
-/* ----------------------------------------------------------------------- */\r
-\r
-/**\r
-Values that specify the status of the decoding process when decoding the main header. \r
-These values may be combined with a | operator. \r
-*/\r
-typedef enum J2K_STATUS {\r
- J2K_STATE_MHSOC = 0x0001, /**< a SOC marker is expected */\r
- J2K_STATE_MHSIZ = 0x0002, /**< a SIZ marker is expected */\r
- J2K_STATE_MH = 0x0004, /**< the decoding process is in the main header */\r
- J2K_STATE_TPHSOT = 0x0008, /**< the decoding process is in a tile part header and expects a SOT marker */\r
- J2K_STATE_TPH = 0x0010, /**< the decoding process is in a tile part header */\r
- J2K_STATE_MT = 0x0020, /**< the EOC marker has just been read */\r
- J2K_STATE_NEOC = 0x0040 /**< the decoding process must not expect a EOC marker because the codestream is truncated */\r
-} J2K_STATUS;\r
-\r
-/* ----------------------------------------------------------------------- */\r
-\r
-/**\r
-Quantization stepsize\r
-*/\r
-typedef struct opj_stepsize {\r
- /** exponent */\r
- int expn;\r
- /** mantissa */\r
- int mant;\r
-} opj_stepsize_t;\r
-\r
-/**\r
-Tile-component coding parameters\r
-*/\r
-typedef struct opj_tccp {\r
- /** coding style */\r
- int csty;\r
- /** number of resolutions */\r
- int numresolutions;\r
- /** code-blocks width */\r
- int cblkw;\r
- /** code-blocks height */\r
- int cblkh;\r
- /** code-block coding style */\r
- int cblksty;\r
- /** discrete wavelet transform identifier */\r
- int qmfbid;\r
- /** quantisation style */\r
- int qntsty;\r
- /** stepsizes used for quantization */\r
- opj_stepsize_t stepsizes[J2K_MAXBANDS];\r
- /** number of guard bits */\r
- int numgbits;\r
- /** Region Of Interest shift */\r
- int roishift;\r
- /** precinct width */\r
- int prcw[J2K_MAXRLVLS];\r
- /** precinct height */\r
- int prch[J2K_MAXRLVLS]; \r
-} opj_tccp_t;\r
-\r
-/**\r
-Tile coding parameters : \r
-this structure is used to store coding/decoding parameters common to all\r
-tiles (information like COD, COC in main header)\r
-*/\r
-typedef struct opj_tcp {\r
- /** 1 : first part-tile of a tile */\r
- int first;\r
- /** coding style */\r
- int csty;\r
- /** progression order */\r
- OPJ_PROG_ORDER prg;\r
- /** number of layers */\r
- int numlayers;\r
- /** multi-component transform identifier */\r
- int mct;\r
- /** rates of layers */\r
- int rates[100];\r
- /** number of progression order changes */\r
- int numpocs;\r
- /** indicates if a POC marker has been used O:NO, 1:YES */\r
- int POC;\r
- /** progression order changes */\r
- opj_poc_t pocs[32];\r
- /** packet header store there for futur use in t2_decode_packet */\r
- unsigned char *ppt_data;\r
- /** pointer remaining on the first byte of the first header if ppt is used */\r
- unsigned char *ppt_data_first;\r
- /** If ppt == 1 --> there was a PPT marker for the present tile */\r
- int ppt;\r
- /** used in case of multiple marker PPT (number of info already stored) */\r
- int ppt_store;\r
- /** ppmbug1 */\r
- int ppt_len;\r
- /** add fixed_quality */\r
- float distoratio[100];\r
- /** tile-component coding parameters */\r
- opj_tccp_t *tccps;\r
-} opj_tcp_t;\r
-\r
-/**\r
-Coding parameters\r
-*/\r
-typedef struct opj_cp {\r
- /** allocation by rate/distortion */\r
- int disto_alloc;\r
- /** allocation by fixed layer */\r
- int fixed_alloc;\r
- /** add fixed_quality */\r
- int fixed_quality;\r
- /** if != 0, then original dimension divided by 2^(reduce); if == 0 or not used, image is decoded to the full resolution */\r
- int reduce;\r
- /** if != 0, then only the first "layer" layers are decoded; if == 0 or not used, all the quality layers are decoded */\r
- int layer;\r
- /** 0 = no index || 1 = index */\r
- int index_on;\r
- /** XTOsiz */\r
- int tx0;\r
- /** YTOsiz */\r
- int ty0;\r
- /** XTsiz */\r
- int tdx;\r
- /** YTsiz */\r
- int tdy;\r
- /** comment for coding */\r
- char *comment;\r
- /** number of tiles in width */\r
- int tw;\r
- /** number of tiles in heigth */\r
- int th;\r
- /** ID number of the tiles present in the codestream */\r
- int *tileno;\r
- /** size of the vector tileno */\r
- int tileno_size;\r
- /** packet header store there for futur use in t2_decode_packet */\r
- unsigned char *ppm_data;\r
- /** pointer remaining on the first byte of the first header if ppm is used */\r
- unsigned char *ppm_data_first;\r
- /** if ppm == 1 --> there was a PPM marker for the present tile */\r
- int ppm;\r
- /** use in case of multiple marker PPM (number of info already store) */\r
- int ppm_store;\r
- /** use in case of multiple marker PPM (case on non-finished previous info) */\r
- int ppm_previous;\r
- /** ppmbug1 */\r
- int ppm_len;\r
- /** tile coding parameters */\r
- opj_tcp_t *tcps;\r
- /** fixed layer */\r
- int *matrice;\r
-} opj_cp_t;\r
-\r
-/**\r
-Information concerning a packet inside tile\r
-*/\r
-typedef struct opj_packet_info {\r
- /** start position */\r
- int start_pos;\r
- /** end position */\r
- int end_pos;\r
- /** ADD for Marcela */\r
- double disto;\r
-} opj_packet_info_t;\r
-\r
-/**\r
-Index structure : information regarding tiles inside image\r
-*/\r
-typedef struct opj_tile_info {\r
- /** value of thresh for each layer by tile cfr. Marcela */\r
- double *thresh;\r
- /** number of tile */\r
- int num_tile;\r
- /** start position */\r
- int start_pos;\r
- /** end position of the header */\r
- int end_header;\r
- /** end position */\r
- int end_pos;\r
- /** precinct number for each resolution level (width) */\r
- int pw[33];\r
- /** precinct number for each resolution level (height) */\r
- int ph[33];\r
- /** precinct size (in power of 2), in X for each resolution level */\r
- int pdx[33];\r
- /** precinct size (in power of 2), in Y for each resolution level */\r
- int pdy[33];\r
- /** information concerning packets inside tile */\r
- opj_packet_info_t *packet;\r
- /** add fixed_quality */\r
- int nbpix;\r
- /** add fixed_quality */\r
- double distotile;\r
-} opj_tile_info_t;\r
-\r
-/**\r
-Index structure\r
-*/\r
-typedef struct opj_image_info {\r
- /** 0 = no index || 1 = index */\r
- int index_on;\r
- /** maximum distortion reduction on the whole image (add for Marcela) */\r
- double D_max;\r
- /** packet number */\r
- int num;\r
- /** writing the packet in the index with t2_encode_packets */\r
- int index_write;\r
- /** image width */\r
- int image_w;\r
- /** image height */\r
- int image_h;\r
- /** progression order */\r
- OPJ_PROG_ORDER prog;\r
- /** tile size in x */\r
- int tile_x;\r
- /** tile size in y */\r
- int tile_y;\r
- /** */\r
- int tile_Ox;\r
- /** */\r
- int tile_Oy;\r
- /** number of tiles in X */\r
- int tw;\r
- /** number of tiles in Y */\r
- int th;\r
- /** component numbers */\r
- int comp;\r
- /** number of layer */\r
- int layer;\r
- /** number of decomposition */\r
- int decomposition;\r
- /** main header position */\r
- int main_head_end;\r
- /** codestream's size */\r
- int codestream_size;\r
- /** information regarding tiles inside image */\r
- opj_tile_info_t *tile;\r
-} opj_image_info_t;\r
-\r
-/**\r
-JPEG-2000 codestream reader/writer\r
-*/\r
-typedef struct opj_j2k {\r
- /** codec context */\r
- opj_common_ptr cinfo;\r
-\r
- /** locate in which part of the codestream the decoder is (main header, tile header, end) */\r
- int state;\r
- /** number of the tile curently concern by coding/decoding */\r
- int curtileno;\r
- /** \r
- locate the position of the end of the tile in the codestream, \r
- used to detect a truncated codestream (in j2k_read_sod)\r
- */\r
- unsigned char *eot;\r
- /**\r
- locate the start position of the SOT marker of the current coded tile: \r
- after encoding the tile, a jump (in j2k_write_sod) is done to the SOT marker to store the value of its length. \r
- */\r
- int sot_start;\r
- int sod_start;\r
- /**\r
- as the J2K-file is written in several parts during encoding, \r
- it enables to make the right correction in position return by cio_tell\r
- */\r
- int pos_correction;\r
- /** array used to store the data of each tile */\r
- unsigned char **tile_data;\r
- /** array used to store the length of each tile */\r
- int *tile_len;\r
- /** \r
- decompression only : \r
- store decoding parameters common to all tiles (information like COD, COC in main header)\r
- */\r
- opj_tcp_t *default_tcp;\r
- /** pointer to the encoded / decoded image */\r
- opj_image_t *image;\r
- /** pointer to the coding parameters */\r
- opj_cp_t *cp;\r
- /** helper used to write the index file */\r
- opj_image_info_t *image_info;\r
- /** pointer to the byte i/o stream */\r
- opj_cio_t *cio;\r
-} opj_j2k_t;\r
-\r
-/** @name Exported functions */\r
-/*@{*/\r
-/* ----------------------------------------------------------------------- */\r
-/**\r
-Creates a J2K decompression structure\r
-@param cinfo Codec context info\r
-@return Returns a handle to a J2K decompressor if successful, returns NULL otherwise\r
-*/\r
-opj_j2k_t* j2k_create_decompress(opj_common_ptr cinfo);\r
-/**\r
-Destroy a J2K decompressor handle\r
-@param j2k J2K decompressor handle to destroy\r
-*/\r
-void j2k_destroy_decompress(opj_j2k_t *j2k);\r
-/**\r
-Setup the decoder decoding parameters using user parameters.\r
-Decoding parameters are returned in j2k->cp. \r
-@param j2k J2K decompressor handle\r
-@param parameters decompression parameters\r
-*/\r
-void j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters);\r
-/**\r
-Decode an image from a JPEG-2000 codestream\r
-@param j2k J2K decompressor handle\r
-@param cio Input buffer stream\r
-@return Returns a decoded image if successful, returns NULL otherwise\r
-*/\r
-opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio);\r
-/**\r
-Decode an image form a JPT-stream (JPEG 2000, JPIP)\r
-@param j2k J2K decompressor handle\r
-@param cio Input buffer stream\r
-@return Returns a decoded image if successful, returns NULL otherwise\r
-*/\r
-opj_image_t* j2k_decode_jpt_stream(opj_j2k_t *j2k, opj_cio_t *cio);\r
-/**\r
-Creates a J2K compression structure\r
-@param cinfo Codec context info\r
-@return Returns a handle to a J2K compressor if successful, returns NULL otherwise\r
-*/\r
-opj_j2k_t* j2k_create_compress(opj_common_ptr cinfo);\r
-/**\r
-Destroy a J2K compressor handle\r
-@param j2k J2K compressor handle to destroy\r
-*/\r
-void j2k_destroy_compress(opj_j2k_t *j2k);\r
-/**\r
-Setup the encoder parameters using the current image and using user parameters. \r
-Coding parameters are returned in j2k->cp. \r
-@param j2k J2K compressor handle\r
-@param parameters compression parameters\r
-@param image input filled image\r
-*/\r
-void j2k_setup_encoder(opj_j2k_t *j2k, opj_cparameters_t *parameters, opj_image_t *image);\r
-/**\r
-Encode an image into a JPEG-2000 codestream\r
-@param j2k J2K compressor handle\r
-@param cio Output buffer stream\r
-@param image Image to encode\r
-@param index Name of the index file if required, NULL otherwise\r
-@return Returns true if successful, returns false otherwise\r
-*/\r
-bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, char *index);\r
-/* ----------------------------------------------------------------------- */\r
-/*@}*/\r
-\r
-/*@}*/\r
-\r
-#endif /* __J2K_H */\r
+/*
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
+ * Copyright (c) 2005, Hervé Drolon, FreeImage Team
+ * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __J2K_H
+#define __J2K_H
+/**
+@file j2k.h
+@brief The JPEG-2000 Codestream Reader/Writer (J2K)
+
+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_QNTSTY_NOQNT 0
+#define J2K_CCP_QNTSTY_SIQNT 1
+#define J2K_CCP_QNTSTY_SEQNT 2
+
+/* ----------------------------------------------------------------------- */
+
+#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 */
+
+/* ----------------------------------------------------------------------- */
+
+/**
+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_STATUS;
+
+/* ----------------------------------------------------------------------- */
+
+/**
+Quantization stepsize
+*/
+typedef struct opj_stepsize {
+ /** exponent */
+ int expn;
+ /** mantissa */
+ int mant;
+} opj_stepsize_t;
+
+/**
+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 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 */
+ int 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;
+
+/**
+Coding parameters
+*/
+typedef struct opj_cp {
+ /** 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;
+ /** 0 = no index || 1 = index */
+ int index_on;
+ /** 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;
+} opj_cp_t;
+
+/**
+Information concerning a packet inside tile
+*/
+typedef struct opj_packet_info {
+ /** start position */
+ int start_pos;
+ /** end position */
+ int end_pos;
+ /** ADD for Marcela */
+ double disto;
+} opj_packet_info_t;
+
+/**
+Index structure : information regarding tiles inside image
+*/
+typedef struct opj_tile_info {
+ /** value of thresh for each layer by tile cfr. Marcela */
+ double *thresh;
+ /** number of tile */
+ int num_tile;
+ /** start position */
+ int start_pos;
+ /** end position of the header */
+ int end_header;
+ /** end position */
+ int end_pos;
+ /** precinct number for each resolution level (width) */
+ int pw[33];
+ /** precinct number for each resolution level (height) */
+ int ph[33];
+ /** precinct size (in power of 2), in X for each resolution level */
+ int pdx[33];
+ /** precinct size (in power of 2), in Y for each resolution level */
+ int pdy[33];
+ /** information concerning packets inside tile */
+ opj_packet_info_t *packet;
+ /** add fixed_quality */
+ int nbpix;
+ /** add fixed_quality */
+ double distotile;
+} opj_tile_info_t;
+
+/**
+Index structure
+*/
+typedef struct opj_image_info {
+ /** 0 = no index || 1 = index */
+ int index_on;
+ /** maximum distortion reduction on the whole image (add for Marcela) */
+ double D_max;
+ /** packet number */
+ int num;
+ /** writing the packet in the index with t2_encode_packets */
+ int index_write;
+ /** image width */
+ int image_w;
+ /** image height */
+ int image_h;
+ /** progression order */
+ OPJ_PROG_ORDER prog;
+ /** tile size in x */
+ int tile_x;
+ /** tile size in y */
+ int tile_y;
+ /** */
+ int tile_Ox;
+ /** */
+ int tile_Oy;
+ /** number of tiles in X */
+ int tw;
+ /** number of tiles in Y */
+ int th;
+ /** component numbers */
+ int comp;
+ /** number of layer */
+ int layer;
+ /** number of decomposition */
+ int decomposition;
+ /** main header position */
+ int main_head_end;
+ /** codestream's size */
+ int codestream_size;
+ /** information regarding tiles inside image */
+ opj_tile_info_t *tile;
+} opj_image_info_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;
+ /**
+ 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_image_info_t *image_info;
+ /** pointer to the byte i/o stream */
+ opj_cio_t *cio;
+} opj_j2k_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);
+/**
+Decode an image from a JPEG-2000 codestream
+@param j2k J2K decompressor handle
+@param cio Input buffer stream
+@return Returns a decoded image if successful, returns NULL otherwise
+*/
+opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio);
+/**
+Decode an image form a JPT-stream (JPEG 2000, JPIP)
+@param j2k J2K decompressor handle
+@param cio Input buffer stream
+@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);
+/**
+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);
+/**
+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);
+/**
+Encode an image into a JPEG-2000 codestream
+@param j2k J2K compressor handle
+@param cio Output buffer stream
+@param image Image to encode
+@param index Name of the index file if required, NULL otherwise
+@return Returns true if successful, returns false otherwise
+*/
+bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, char *index);
+/* ----------------------------------------------------------------------- */
+/*@}*/
+
+/*@}*/
+
+#endif /* __J2K_H */
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff