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  1. /*
  2.  * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
  3.  * Copyright (c) 2002-2007, Professor Benoit Macq
  4.  * Copyright (c) 2002-2003, Yannick Verschueren
  5.  * Copyright (c) 2005, Herve Drolon, FreeImage Team
  6.  * All rights reserved.
  7.  *
  8.  * Redistribution and use in source and binary forms, with or without
  9.  * modification, are permitted provided that the following conditions
  10.  * are met:
  11.  * 1. Redistributions of source code must retain the above copyright
  12.  *    notice, this list of conditions and the following disclaimer.
  13.  * 2. Redistributions in binary form must reproduce the above copyright
  14.  *    notice, this list of conditions and the following disclaimer in the
  15.  *    documentation and/or other materials provided with the distribution.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
  18.  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19.  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20.  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  21.  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  22.  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23.  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24.  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  25.  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26.  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  27.  * POSSIBILITY OF SUCH DAMAGE.
  28.  */
  29.  
  30. #ifndef __JPT_H
  31. #define __JPT_H
  32. /**
  33. @file jpt.h
  34. @brief JPT-stream reader (JPEG 2000, JPIP)
  35.  
  36. JPT-stream functions are implemented in J2K.C.
  37. */
  38.  
  39. /**
  40. Message Header JPT stream structure
  41. */
  42. typedef struct opj_jpt_msg_header {
  43.         /** In-class Identifier */
  44.         unsigned int Id;
  45.         /** Last byte information */
  46.         unsigned int last_byte;
  47.         /** Class Identifier */
  48.         unsigned int Class_Id; 
  49.         /** CSn : index identifier */
  50.         unsigned int CSn_Id;
  51.         /** Message offset */
  52.         unsigned int Msg_offset;
  53.         /** Message length */
  54.         unsigned int Msg_length;
  55.         /** Auxiliary for JPP case */
  56.         unsigned int Layer_nb;
  57. } opj_jpt_msg_header_t;
  58.  
  59. /* ----------------------------------------------------------------------- */
  60.  
  61. /**
  62. Initialize the value of the message header structure
  63. @param header Message header structure
  64. */
  65. void jpt_init_msg_header(opj_jpt_msg_header_t * header);
  66.  
  67. /**
  68. Read the message header for a JPP/JPT - stream
  69. @param cinfo Codec context info
  70. @param cio CIO handle
  71. @param header Message header structure
  72. */
  73. void jpt_read_msg_header(opj_common_ptr cinfo, opj_cio_t *cio, opj_jpt_msg_header_t *header);
  74.  
  75. #endif
  76.