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00023 #ifndef _ATSC_TYPES_H_
00024 #define _ATSC_TYPES_H_
00025
00026 #include <atsc_consts.h>
00027 #include <cstring>
00028 #include <cassert>
00029
00030
00036 class plinfo {
00037 public:
00038 plinfo () : _flags (0), _segno (0) { }
00039
00040
00041
00042 bool field_sync1_p () const { return (_flags & fl_field_sync1) != 0; }
00043 bool field_sync2_p () const { return (_flags & fl_field_sync2) != 0; }
00044 bool field_sync_p () const { return field_sync1_p () || field_sync2_p (); }
00045
00046 bool regular_seg_p () const { return (_flags & fl_regular_seg) != 0; }
00047
00048 bool in_field1_p () const { return (_flags & fl_field2) == 0; }
00049 bool in_field2_p () const { return (_flags & fl_field2) != 0; }
00050
00051 bool first_regular_seg_p () const { return (_flags & fl_first_regular_seg) != 0; }
00052
00053 bool transport_error_p () const { return (_flags & fl_transport_error) != 0; }
00054
00055 unsigned int segno () const { return _segno; }
00056 unsigned int flags () const { return _flags; }
00057
00058
00059
00060 void set_field_sync1 ()
00061 {
00062 _segno = 0;
00063 _flags = fl_field_sync1;
00064 }
00065
00066 void set_field_sync2 ()
00067 {
00068 _segno = 0;
00069 _flags = fl_field_sync2 | fl_field2;
00070 }
00071
00072 void set_regular_seg (bool field2, int segno)
00073 {
00074 assert (0 <= segno && segno < ATSC_DSEGS_PER_FIELD);
00075 _segno = segno;
00076 _flags = fl_regular_seg;
00077 if (segno == 0)
00078 _flags |= fl_first_regular_seg;
00079 if (segno >= ATSC_DSEGS_PER_FIELD)
00080 _flags |= fl_transport_error;
00081 if (field2)
00082 _flags |= fl_field2;
00083 }
00084
00085 void set_transport_error (bool error){
00086 if (error)
00087 _flags |= fl_transport_error;
00088 else
00089 _flags &= ~fl_transport_error;
00090 }
00091
00092
00093 bool operator== (const plinfo &other) const {
00094 return (_flags == other._flags && _segno == other._segno);
00095 }
00096
00097 bool operator!= (const plinfo &other) const {
00098 return !(_flags == other._flags && _segno == other._segno);
00099 }
00100
00105 static void delay (plinfo &out, const plinfo &in, int nsegs_of_delay);
00106
00110 static void sanity_check (const plinfo &in);
00111
00112
00113 protected:
00114 unsigned short _flags;
00115 unsigned short _segno;
00116
00117
00118
00119 static const int fl_regular_seg = 0x0001;
00120
00121 static const int fl_field_sync1 = 0x0002;
00122
00123 static const int fl_field_sync2 = 0x0004;
00124
00125
00126
00127
00128 static const int fl_first_regular_seg = 0x0008;
00129
00130
00131 static const int fl_field2 = 0x0010;
00132
00133
00134
00135
00136
00137
00138 static const int fl_transport_error = 0x0020;
00139 };
00140
00141 class atsc_mpeg_packet {
00142 public:
00143 unsigned char data[ATSC_MPEG_DATA_LENGTH + 1];
00144
00145
00146 bool operator== (const atsc_mpeg_packet &other) const {
00147 return std::memcmp (data, other.data, sizeof (data)) == 0;
00148 };
00149
00150 bool operator!= (const atsc_mpeg_packet &other) const {
00151 return !(std::memcmp (data, other.data, sizeof (data)) == 0);
00152 };
00153 };
00154
00155 class atsc_mpeg_packet_no_sync {
00156 public:
00157 plinfo pli;
00158 unsigned char data[ATSC_MPEG_DATA_LENGTH];
00159
00160
00161 bool operator== (const atsc_mpeg_packet_no_sync &other) const {
00162 return std::memcmp (data, other.data, sizeof (data)) == 0;
00163 }
00164
00165 bool operator!= (const atsc_mpeg_packet_no_sync &other) const {
00166 return !(std::memcmp (data, other.data, sizeof (data)) == 0);
00167 }
00168 };
00169
00170 class atsc_mpeg_packet_rs_encoded {
00171 public:
00172 plinfo pli;
00173 unsigned char data[ATSC_MPEG_RS_ENCODED_LENGTH];
00174
00175
00176 bool operator== (const atsc_mpeg_packet_rs_encoded &other) const {
00177 return std::memcmp (data, other.data, sizeof (data)) == 0;
00178 }
00179
00180 bool operator!= (const atsc_mpeg_packet_rs_encoded &other) const {
00181 return !(std::memcmp (data, other.data, sizeof (data)) == 0);
00182 }
00183 };
00184
00185
00187
00188 class atsc_data_segment {
00189 public:
00190 plinfo pli;
00191 unsigned char data[ATSC_DATA_SEGMENT_LENGTH];
00192
00193
00194 bool operator== (const atsc_data_segment &other) const {
00195 return std::memcmp (data, other.data, sizeof (data)) == 0;
00196 }
00197
00198 bool operator!= (const atsc_data_segment &other) const {
00199 return !(std::memcmp (data, other.data, sizeof (data)) == 0);
00200 }
00201 };
00202
00209 class atsc_soft_data_segment {
00210 public:
00211 plinfo pli;
00212 float data[ATSC_DATA_SEGMENT_LENGTH];
00213
00214
00215 bool operator== (const atsc_data_segment &other) const {
00216 return std::memcmp (data, other.data, sizeof (data)) == 0;
00217 }
00218
00219 bool operator!= (const atsc_data_segment &other) const {
00220 return !(std::memcmp (data, other.data, sizeof (data)) == 0);
00221 }
00222 };
00223
00224
00225 #endif