* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
* Copyright (c) 2005, Herve Drolon, FreeImage Team
* Copyright (c) 2006-2007, Parvatha Elangovan
+ * Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
+ * Copyright (c) 2011, Mickael Savinaud, Communications & Systemes <mickael.savinaud@c-s.fr>
+ *
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#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
+
+#define J2K_MS_UNK 0 /**< UNKNOWN marker value */
/* UniPG>> */
#ifdef USE_JPWL
#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.
-*/
+ * 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_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_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;
+/**
+ * Type of elements storing in the MCT data
+ */
+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;
+
+/**
+ * Type of MCT array
+ */
+typedef enum MCT_ARRAY_TYPE
+{
+ MCT_TYPE_DEPENDENCY = 0,
+ MCT_TYPE_DECORRELATION = 1,
+ MCT_TYPE_OFFSET = 2
+} J2K_MCT_ARRAY_TYPE;
+
/* ----------------------------------------------------------------------- */
/**
}J2K_T2_MODE;
/**
-Quantization stepsize
-*/
+ * Quantization stepsize
+ */
typedef struct opj_stepsize {
/** exponent */
int expn;
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
*/
opj_tccp_t;
-/**
+/** V1 STYLE
Tile coding parameters :
this structure is used to store coding/decoding parameters common to all
tiles (information like COD, COC in main header)
opj_tccp_t *tccps;
} opj_tcp_t;
-
-/**
- * Type of data for storing the MCT data
- */
-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;
-
/**
- * Type of data for storing the MCT data
+ * FIXME DOC
*/
-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;
}
opj_mct_data_t;
+/**
+ * FIXME DOC
+ */
typedef struct opj_simple_mcc_decorrelation_data
{
OPJ_UINT32 m_index;
OPJ_UINT32 m_nb_max_mcc_records;
-
/***** FLAGS *******/
/** If ppt == 1 --> there was a PPT marker for the present tile */
OPJ_UINT32 ppt : 1;
-/**
+/** V1 STYLE
Coding parameters
*/
typedef struct opj_cp {
/**
-Coding parameters
-*/
+ * Coding parameters
+ */
typedef struct opj_cp_v2
{
/** Size of the image in bits*/
/** 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*/
/** tile coding parameters */
opj_tcp_v2_t *tcps;
+
union
{
opj_decoding_param_t m_dec;
OPJ_UINT32 m_start_tile_y;
OPJ_UINT32 m_end_tile_x;
OPJ_UINT32 m_end_tile_y;
+ /**
+ * Decoded area set by the user
+ */
+ OPJ_UINT32 m_DA_x0;
+ OPJ_UINT32 m_DA_y0;
+ OPJ_UINT32 m_DA_x1;
+ OPJ_UINT32 m_DA_y1;
+
+ /** Index of the tile to decode (used in get_tile) */
+ OPJ_INT32 m_tile_ind_to_dec;
+ /** Position of the last SOT marker read */
+ OPJ_OFF_T m_last_sot_read_pos;
+
+ /**
+ * Indicate that the current tile-part is assume as the last tile part of the codestream.
+ * It is useful in the case of PSot is equal to zero. The sot length will be compute in the
+ * SOD reader function. FIXME NOT USED for the moment
+ */
+ opj_bool m_last_tile_part;
/** to tell that a tile can be decoded. */
OPJ_UINT32 m_can_decode : 1;
OPJ_UINT32 m_discard_tiles : 1;
}
m_specific_param;
- /** number of the tile curently concern by coding/decoding */
- OPJ_UINT32 m_current_tile_number;
+ /** pointer to the internal/private encoded / decoded image */
+ opj_image_t* m_private_image;
- /** pointer to the encoded / decoded image */
- //opj_image_t *m_image;
- opj_image_header_t* m_image_header;
+ /* pointer to the output image (decoded)*/
+ opj_image_t* m_output_image;
/** Coding parameters */
opj_cp_v2_t m_cp;
/** helper used to write the index file */
opj_codestream_index_t *cstr_index;
+ /** number of the tile curently concern by coding/decoding */
+ OPJ_UINT32 m_current_tile_number;
+
/** the current tile coder/decoder **/
struct opj_tcd_v2 * m_tcd;
- //opj_tcd_v2_t * m_tcd;
-
-
}
opj_j2k_v2_t;
*/
opj_bool j2k_read_header( struct opj_stream_private *p_stream,
opj_j2k_v2_t* p_j2k,
- opj_image_header_t* p_img_header,
+ opj_image_t** p_image,
struct opj_event_mgr* p_manager );
*/
void j2k_destroy (opj_j2k_v2_t *p_j2k);
+/**
+ * Destroys a codestream index structure.
+ *
+ * @param p_cstr_ind the codestream index parameter to destroy.
+ */
+void j2k_destroy_cstr_index (opj_codestream_index_t *p_cstr_ind);
+
/**
* Decode tile data.
* @param p_j2k the jpeg2000 codec.
* @return true if the area could be set.
*/
opj_bool j2k_set_decode_area( opj_j2k_v2_t *p_j2k,
+ opj_image_t* p_image,
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 );
*@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);
+void j2k_dump_image_header(opj_image_t* image, opj_bool dev_dump_flag, FILE* out_stream);
/**
* Dump a component image header structure.
*@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);
+void j2k_dump_image_comp_header(opj_image_comp_t* comp, opj_bool dev_dump_flag, FILE* out_stream);
/**
* Get the codestream info from a JPEG2000 codec.
*/
opj_codestream_index_t* j2k_get_cstr_index(opj_j2k_v2_t* p_j2k);
+/**
+ * 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_bool j2k_decode_v2(opj_j2k_v2_t *j2k, struct opj_stream_private *cio, opj_image_t* p_image, opj_event_mgr_t * p_manager);
+
+
+opj_bool j2k_get_tile( opj_j2k_v2_t *p_j2k,
+ opj_stream_private_t *p_stream,
+ opj_image_t* p_image,
+ struct opj_event_mgr * p_manager,
+ OPJ_UINT32 tile_index );
+
+opj_bool j2k_set_decoded_resolution_factor(opj_j2k_v2_t *p_j2k, OPJ_UINT32 res_factor, opj_event_mgr_t * p_manager);
#endif /* __J2K_H */
projects / openjpeg.git / blobdiff