svn-gvsig-desktop / tags / v1_9_Build_1252 / libraries / libjni-readecw-linux / include / NCSJPCPacket.h @ 42158
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1 | 1448 | igbrotru | /********************************************************
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2 | ** Copyright 2002 Earth Resource Mapping Ltd.
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3 | ** This document contains proprietary source code of
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4 | ** Earth Resource Mapping Ltd, and can only be used under
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5 | ** one of the three licenses as described in the
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6 | ** license.txt file supplied with this distribution.
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7 | ** See separate license.txt file for license details
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8 | ** and conditions.
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9 | **
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10 | ** This software is covered by US patent #6,442,298,
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11 | ** #6,102,897 and #6,633,688. Rights to use these patents
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12 | ** is included in the license agreements.
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13 | **
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14 | ** FILE: $Archive: /NCS/Source/include/NCSJPCPacketHeader.h $
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15 | ** CREATED: 18/12/2002 3:27:34 PM
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16 | ** AUTHOR: Simon Cope
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17 | ** PURPOSE: CNCSJPCPacket class header
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18 | ** EDITS: [xx] ddMmmyy NAME COMMENTS
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19 | *******************************************************/
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20 | |||
21 | #ifndef NCSJPCPACKETHEADER_H
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22 | #define NCSJPCPACKETHEADER_H
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23 | |||
24 | #include "NCSJPCMarker.h" |
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25 | |||
26 | /**
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27 | * CNCSJPCPacket class - the JPC Packet Header Type.
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28 | *
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29 | * @author Simon Cope
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30 | * @version $Revision$ $Author$ $Date$
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31 | */
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32 | class NCSJPC_EXPORT_ALL CNCSJPCPacket { |
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33 | public:
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34 | /** Packet Number */
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35 | NCSJPCPacketId m_nPacket; |
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36 | /** Packet length */
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37 | INT32 m_nLength; |
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38 | /** Total Packet data length */
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39 | INT32 m_nDataLength; |
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40 | /** Packet offset */
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41 | UINT64 m_nOffset; |
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42 | /** Absolute Packet Data offset in codestream */
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43 | UINT64 m_nDataOffset; |
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44 | |||
45 | /** Default constructor, initialises members */
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46 | CNCSJPCPacket(); |
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47 | |||
48 | /**
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49 | * Parse the fields from the JPC codestream.
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50 | * @param JPC CNCSJPC to use to parse file.
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51 | * @param Stream IOStream to use to parse file.
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52 | * @return CNCSError NCS_SUCCESS, or Error code on failure.
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53 | */
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54 | virtual CNCSError ParseHeader(class CNCSJPC &JPC, |
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55 | CNCSJPCIOStream &Stream, |
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56 | class CNCSJPCProgression *pProgression, |
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57 | bool bParseData = true, |
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58 | bool *pbNonZeroLength = NULL); |
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59 | virtual CNCSError UnParseHeader(CNCSJPC &JPC, |
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60 | CNCSJPCIOStream &Stream, |
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61 | CNCSJPCProgression *pProgression, |
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62 | bool bParseData);
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63 | virtual CNCSError ParseBody(class CNCSJPC &JPC, |
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64 | CNCSJPCIOStream &Stream, |
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65 | class CNCSJPCProgression *pProgression, |
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66 | bool bNonZeroLength);
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67 | virtual CNCSError UnParseBody(class CNCSJPC &JPC, |
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68 | CNCSJPCIOStream &Stream, |
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69 | class CNCSJPCProgression *pProgression, |
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70 | bool bNonZeroLength);
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71 | protected:
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72 | /**
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73 | * Parse A segment length from the JPC codestream.
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74 | * @param Stream IOStream to use to parse file.
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75 | * @param pCB CodeBlock this segment belongs too
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76 | * @param nPassesIncluded Number of passes included in this segment
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77 | * @param Length Length of segment returned
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78 | * @return CNCSError NCS_SUCCESS, or Error code on failure.
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79 | */
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80 | CNCSError ParseSegment(CNCSJPCIOStream &Stream, class CNCSJPCCodeBlock *pCB, UINT32 nPassesIncluded, UINT32 &Length); |
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81 | CNCSError UnParseSegment(CNCSJPCIOStream &Stream, class CNCSJPCCodeBlock *pCB, UINT32 nPassesIncluded, UINT32 &Length); |
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82 | }; |
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83 | |||
84 | |||
85 | //typedef std::list<CNCSJPCPacket> CNCSJPCPacketListVector;
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86 | |||
87 | /**
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88 | * CNCSJPCPacketList class - self parsing list of JPC Packet Headers.
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89 | *
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90 | * @author Simon Cope
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91 | * @version $Revision$ $Author$ $Date$
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92 | */
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93 | class NCSJPC_EXPORT_ALL CNCSJPCPacketList { |
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94 | public:
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95 | /** Do we have offsets yet */
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96 | bool m_bHaveOffsets;
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97 | /** Default constructor, initialises members */
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98 | CNCSJPCPacketList(); |
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99 | /** Virtual destructor */
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100 | virtual ~CNCSJPCPacketList(); |
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101 | |||
102 | /**
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103 | * Parse the headers from the JPC codestream.
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104 | * @param JPC CNCSJPC to use to parse file.
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105 | * @param Stream IOStream to use to parse file.
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106 | * @param bComplete Progression order is complete
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107 | * @param nBytes Number of bytes of headers to parse
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108 | * @param nHeaders Total number of headers to parse, -1 == ignore
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109 | * @return CNCSError NCS_SUCCESS, or Error code on failure.
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110 | */
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111 | virtual CNCSError Parse(class CNCSJPC &JPC, CNCSJPCIOStream &Stream, bool &bComplete, UINT64 nBytes, INT32 nHeaders = -1); |
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112 | |||
113 | /**
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114 | * Parse a header from the JPC codestream.
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115 | * @param bComplete Progression order is complete
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116 | * @param nCurPacket Current packet #
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117 | * @return CNCSError NCS_SUCCESS, or Error code on failure.
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118 | */
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119 | virtual CNCSError ParseHeader(bool &bComplete, UINT32 nCurPacket);
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120 | virtual CNCSError GenDynamicPLTs(class CNCSJPCTilePartHeader *pMainTP); |
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121 | /**
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122 | * UnParse the headers to the JPC codestream.
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123 | * @param Stream IOStream to use to parse file.
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124 | * @param JPC CNCSJPC to use to parse file.
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125 | * @return CNCSError NCS_SUCCESS, or Error code on failure.
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126 | */
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127 | virtual CNCSError UnParse(class CNCSJPC &JPC, CNCSJPCIOStream &Stream); |
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128 | |||
129 | void clear() { m_Packets.clear(); };
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130 | void push_back(CNCSJPCPacket &packet) { m_Packets.push_back(packet); };
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131 | protected:
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132 | std::vector<CNCSJPCPacket> m_Packets; |
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133 | /** Codestream class pointer */
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134 | class CNCSJPC *m_pJPC; |
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135 | /** Pointer to IOStream */
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136 | class CNCSJPCIOStream *m_pStream; |
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137 | /** Number of bytes of headers to read */
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138 | UINT64 m_nBytes; |
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139 | /** Number of headers to read */
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140 | INT32 m_nHeaders; |
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141 | }; |
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142 | |||
143 | #endif // !NCSJPCPACKETHEADER_H |