* Copyright (c) 2002-2003, Yannick Verschueren
* 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
#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
#define J2K_MS_COM 0xff64 /**< COM marker value */
/* UniPG>> */
#ifdef USE_JPWL
-#define J2K_MS_EPC 0xff68 /**< EPC marker value (Part11) */
-#define J2K_MS_EPB 0xff66 /**< EPB marker value (Part11) */
-#define J2K_MS_ESD 0xff67 /**< ESD marker value (Part11) */
-#define J2K_MS_RED 0xff69 /**< RED marker value (Part11) */
+#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 */
+
/* ----------------------------------------------------------------------- */
/**
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_NEOC = 0x0040, /**< the decoding process must not expect a EOC marker because the codestream is truncated */
+ J2K_STATE_ERR = 0x0080 /**< the decoding process has encountered an error */
} 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_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 layer;
/** if == NO_LIMITATION, decode entire codestream; if == LIMIT_TO_MAIN_HEADER then only decode the main header */
OPJ_LIMIT_DECODING limit_decoding;
- /** 0 = no index || 1 = index */
- int index_on;
/** XTOsiz */
int tx0;
/** YTOsiz */
/* <<UniPG */
} 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
*/
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)
/** pointer to the coding parameters */
opj_cp_t *cp;
/** helper used to write the index file */
- opj_image_info_t *image_info;
+ opj_codestream_info_t *cstr_info;
/** pointer to the byte i/o stream */
opj_cio_t *cio;
} opj_j2k_t;
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_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_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
*/
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 index Name of the index file if required, NULL otherwise
+@param cstr_info Codestream information structure 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);
+bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info);
+
+void j2k_dump_image(FILE *fd, opj_image_t * img);
+void j2k_dump_cp(FILE *fd, opj_image_t * img, opj_cp_t * cp);
/* ----------------------------------------------------------------------- */
/*@}*/
projects / openjpeg.git / blobdiff