/* * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium * Copyright (c) 2002-2007, Professor Benoit Macq * Copyright (c) 2002-2003, Yannick Verschueren * Copyright (c) 2005, Herve Drolon, FreeImage Team * Copyright (c) 2008, Jerome Fimes, Communications & Systemes * 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 __JP2_H #define __JP2_H /** @file jp2.h @brief The JPEG-2000 file format Reader/Writer (JP2) */ #include "openjpeg.h" /********************************************************************************** ********************************* FORWARD DECLARATIONS *************************** **********************************************************************************/ struct opj_j2k; struct opj_procedure_list; struct opj_event_mgr; struct opj_stream_private; struct opj_dparameters; struct opj_cparameters; /** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */ /*@{*/ #define JPIP_JPIP 0x6a706970 #define JP2_JP 0x6a502020 /**< JPEG 2000 signature box */ #define JP2_FTYP 0x66747970 /**< File type box */ #define JP2_JP2H 0x6a703268 /**< JP2 header box */ #define JP2_IHDR 0x69686472 /**< Image header box */ #define JP2_COLR 0x636f6c72 /**< Colour specification box */ #define JP2_JP2C 0x6a703263 /**< Contiguous codestream box */ #define JP2_URL 0x75726c20 /**< URL box */ #define JP2_DBTL 0x6474626c /**< ??? */ #define JP2_BPCC 0x62706363 /**< Bits per component box */ #define JP2_JP2 0x6a703220 /**< File type fields */ /* ----------------------------------------------------------------------- */ typedef enum { JP2_STATE_NONE = 0x0, JP2_STATE_SIGNATURE = 0x1, JP2_STATE_FILE_TYPE = 0x2, JP2_STATE_HEADER = 0x4, JP2_STATE_CODESTREAM = 0x8, JP2_STATE_END_CODESTREAM = 0x10, JP2_STATE_UNKNOWN = 0x80000000 } JP2_STATE; typedef enum { JP2_IMG_STATE_NONE = 0x0, JP2_IMG_STATE_UNKNOWN = 0x80000000 } JP2_IMG_STATE; /** JP2 component */ typedef struct opj_jp2_comps { unsigned int depth; int sgnd; unsigned int bpcc; } opj_jp2_comps_t; /** JPEG-2000 file format reader/writer */ typedef struct opj_jp2 { /** handle to the J2K codec */ struct opj_j2k *j2k; /** list of validation procedures */ struct opj_procedure_list * m_validation_list; /** list of execution procedures */ struct opj_procedure_list * m_procedure_list; /* width of image */ unsigned int w; /* height of image */ unsigned int h; /* number of components in the image */ unsigned int numcomps; unsigned int bpc; unsigned int C; unsigned int UnkC; unsigned int IPR; unsigned int meth; unsigned int approx; unsigned int enumcs; unsigned int precedence; unsigned int brand; unsigned int minversion; unsigned int numcl; unsigned int *cl; opj_jp2_comps_t *comps; unsigned int j2k_codestream_offset; unsigned int jp2_state; unsigned int jp2_img_state; } opj_jp2_t; /** JP2 Box */ typedef struct opj_jp2_box { unsigned int length; unsigned int type; } opj_jp2_box_t; typedef struct opj_jp2_header_handler { /* marker value */ int id; /* action linked to the marker */ bool (*handler) (opj_jp2_t *jp2,unsigned char * p_header_data, unsigned int p_header_size,struct opj_event_mgr * p_manager); } opj_jp2_header_handler_t; typedef struct opj_jp2_img_header_writer_handler { /* action to perform */ unsigned char* (*handler) (opj_jp2_t *jp2, unsigned int * p_data_size); /* result of the action : data */ unsigned char * m_data; /* size of data */ unsigned int m_size; } opj_jp2_img_header_writer_handler_t; /** @name Exported functions */ /*@{*/ /* ----------------------------------------------------------------------- */ /** * Creates a jpeg2000 file decompressor. * * @return an empty jpeg2000 file codec. */ opj_jp2_t* jp2_create (bool p_is_decoder); /** Destroy a JP2 decompressor handle @param jp2 JP2 decompressor handle to destroy */ void jp2_destroy(opj_jp2_t *jp2); /** Setup the decoder decoding parameters using user parameters. Decoding parameters are returned in jp2->j2k->cp. @param jp2 JP2 decompressor handle @param parameters decompression parameters */ void jp2_setup_decoder(opj_jp2_t *jp2, struct opj_dparameters *parameters); /** * Decode an image from a JPEG-2000 file stream * @param jp2 JP2 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 */ struct opj_image* opj_jp2_decode(opj_jp2_t *jp2, struct opj_stream_private *cio, struct opj_event_mgr * p_manager); /** Setup the encoder parameters using the current image and using user parameters. Coding parameters are returned in jp2->j2k->cp. @param jp2 JP2 compressor handle @param parameters compression parameters @param image input filled image */ void jp2_setup_encoder(opj_jp2_t *jp2, struct opj_cparameters *parameters, struct opj_image *image,struct opj_event_mgr * p_manager); /** * Starts a compression scheme, i.e. validates the codec parameters, writes the header. * * @param jp2 the jpeg2000 file codec. * @param cio the stream object. * * @return true if the codec is valid. */ bool jp2_start_compress(opj_jp2_t *jp2, struct opj_stream_private *cio,struct opj_image * p_image,struct opj_event_mgr * p_manager); /** * Ends the compression procedures and possibiliy add data to be read after the * codestream. */ bool jp2_end_compress(opj_jp2_t *jp2, struct opj_stream_private *cio, struct opj_event_mgr * p_manager); /** Encode an image into a JPEG-2000 file stream @param jp2 JP2 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 */ bool opj_jp2_encode(opj_jp2_t *jp2, struct opj_stream_private *cio, struct opj_event_mgr * p_manager); /** * Reads a jpeg2000 file header structure. * * @param cio the stream to read data from. * @param jp2 the jpeg2000 file header structure. * @param p_manager the user event manager. * * @return true if the box is valid. */ bool jp2_read_header( opj_jp2_t *jp2, struct opj_image ** p_image, OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0, OPJ_UINT32 * p_tile_width, OPJ_UINT32 * p_tile_height, OPJ_UINT32 * p_nb_tiles_x, OPJ_UINT32 * p_nb_tiles_y, struct opj_stream_private *cio, struct opj_event_mgr * p_manager ); /** * Ends the decompression procedures and possibiliy add data to be read after the * codestream. */ bool jp2_end_decompress(opj_jp2_t *jp2, struct opj_stream_private *cio, struct opj_event_mgr * p_manager); /** * Writes a tile. * @param p_j2k the jpeg2000 codec. * @param p_stream the stream to write data to. * @param p_manager the user event manager. */ bool jp2_write_tile ( opj_jp2_t *p_jp2, 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 ); /** * 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. */ bool opj_jp2_decode_tile ( opj_jp2_t * p_jp2, 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. */ bool jp2_read_tile_header ( opj_jp2_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, 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_jp2 the jpeg2000 codec. * @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. */ bool jp2_set_decode_area( opj_jp2_t *p_jp2, 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 ); /* ----------------------------------------------------------------------- */ /*@}*/ /*@}*/ #endif /* __JP2_H */