segy_file.h

/* segy_file.h */
/* $Id: segy_file.h,v 1.8 2004/01/28 13:21:02 vlad Exp $ */
#ifndef __segy_file_h
#define __segy_file_h

/***********************************************************************
 *
 * SEG-Y digital tape standard
 *
 * (c) 1975 Society of Exploration Geophysicists
 *
 * Reference on:
 * Society of Exploration Geophysicists, digital tape standards
 * Geophysics, v.32, p.1073-1084; v.37, p.36-44; v.40, p.344-352
 *
 ***********************************************************************/

/* Reel header = text header + binary header */
#define SEGY_ReelHeaderSize 3600
#define SEGY_EbcdicHeaderSize   3200
#define SEGY_BinaryHeaderSize   400

/* Trace idenftification header */
#define SEGY_TraceHeaderSize    240


/***********************************************************************
 *
 * ÄÞàÜÐâ ×ÐÓÞÛÞÒÚÐ äÐÙÛÐ SEGY (Reel header).
 *
 ***********************************************************************/

/*
 * EBCDIC HEADER (3200 bytes)
 */
/*      ¸Üï ßÞÛï		ÁÜÕéÕÝØÕ Ò ÑÐÙâÐå Þâ ÝÐçÐÛÐ äÐÙÛÐ */
/* C 1 */
#define SEGY_EH_CLIENT      11
#define SEGY_EH_COMPANY     42
#define SEGY_EH_CREW_NO     72
/* C 2 */
#define SEGY_EH_LINE        89
#define SEGY_EH_AREA        105
#define SEGY_EH_MAP_ID      135
/* C 3 */
#define SEGY_EH_REEL_NO     171
#define SEGY_EH_DAY     200
#define SEGY_EH_YEAR        209
#define SEGY_EH_OBSERVER    222
/* C 4 */
#define SEGY_EH_INSTRUMENT  261
#define SEGY_EH_MODEL       276
#define SEGY_EH_SERIAL_NO   298
/* C 5 */
#define SEGY_EH_DATA_TRACES_REC 343
#define SEGY_EH_AUX_TRACES_REC  374
#define SEGY_EH_CDP_FOLD    391
/* C 6 */
#define SEGY_EH_SAMPLE_INTERVAL 420
#define SEGY_EH_SAMPLES_TRACE   442
#define SEGY_EH_BITS_IN     456
#define SEGY_EH_BYTES_SAMPLE    474
/* C 7 */
#define SEGY_EH_RECORDING_FMT   501
#define SEGY_EH_FMT_THIS_REEL   525
#define SEGY_EH_MEASUREMENT 551
/* C 8 */
/* one of many */
#define SEGY_EH_S_FLOATING_PT   577
#define SEGY_EH_S_FIXED_PT  593
#define SEGY_EH_S_FIXED_PT_GAIN 606
#define SEGY_EH_S_CORRELATED    624
/* C 9 */
/* one of many */
#define SEGY_EH_G_FIXED     656
#define SEGY_EH_G_BINARY    666
#define SEGY_EH_G_FLOATING_PT   677
#define SEGY_EH_G_OTHER     696
/* C10 */
#define SEGY_EH_ALIAS       739
#define SEGY_EH_NOTCH       752
#define SEGY_EH_BAND_LOW    766
#define SEGY_EH_BAND_HIGH   771
#define SEGY_EH_SLOPE_LEFT  786
#define SEGY_EH_SLOPE_RIGHT 790
/* C11 */
#define SEGY_EH_TYPE        818
#define SEGY_EH_NUMBER_POINT    841
#define SEGY_EH_POINT_INTERVAL  863
/* C12 */
#define SEGY_EH_PATTERN1    896
#define SEGY_EH_PATTERN1_LENGTH 930
#define SEGY_EH_PATTERN1_WIDTH  943
/* C13 */
#define SEGY_EH_SWEEP_START 977
#define SEGY_EH_SWEEP_END   989
#define SEGY_EH_SWEEP_LENGTH    1004
#define SEGY_EH_SWEEP_CHANNEL   1024
#define SEGY_EH_SWEEP_TYPE  1033
/* C14 */
#define SEGY_EH_TAPER_START 1064
#define SEGY_EH_TAPER_END   1085
#define SEGY_EH_TAPER_TYPE  1100
/* C15 */
#define SEGY_EH_SPREAD_OFFSET   1139
#define SEGY_EH_SPREAD_MAX_DIST 1159
#define SEGY_EH_SPREAD_GR_INTER 1181
/* C16 */
#define SEGY_EH_GEOPH_PER_GROUP 1225
#define SEGY_EH_GEOPH_SPACING   1237
#define SEGY_EH_GEOPH_FREQUENCY 1251
#define SEGY_EH_GEOPH_MFG   1259
#define SEGY_EH_GEOPH_MODEL 1274
/* C17 */
#define SEGY_EH_PATTERN2    1296
#define SEGY_EH_PATTERN2_LENGTH 1330
#define SEGY_EH_PATTERN2_WIDTH  1343
/* C18 */
/* one of many */
#define SEGY_EH_TS_RECORD   1382
#define SEGY_EH_TS_CDP      1393
#define SEGY_EH_TS_OTHER    1401
/* C19 */
/* one of many */
#define SEGY_EH_AR_NONE     1464
#define SEGY_EH_AR_SPHERICAL    1474
#define SEGY_EH_AR_AGC      1494
#define SEGY_EH_AR_OTHER    1501
/* C20 */
#define SEGY_EH_MAP_PROJECTION  1539
#define SEGY_EH_ZONE_ID     1568
#define SEGY_EH_COORD_UNITS 1591
/* C21 */
#define SEGY_EH_PROCESSING1 1615
/* C22 */
#define SEGY_EH_PROCESSING2 1695
/* C## */
#define SEGY_EH_CLINE(x)    (4+80*((x)-1))

/*
 * BINARY HEADER (400 bytes)
 */
/*      ¸Üï ßÞÛï		ÁÜÕéÕÝØÕ Ò ÑÐÙâÐå Þâ ÝÐçÐÛÐ äÐÙÛÐ */
#define SEGY_BH_JOB_ID      3200
#define SEGY_BH_LINE_NO     3204
#define SEGY_BH_REEL_NO     3208
#define SEGY_BH_DATA_TRACES_REC 3212
#define SEGY_BH_AUX_TRACES_REC  3214
#define SEGY_BH_SAMPLE_INTERVAL 3216
#define SEGY_BH_ORIG_SAMPLE_INT 3218
#define SEGY_BH_SAMPLES_TRACE   3220
#define SEGY_BH_ORIG_SAMPLES_TR 3222
#define SEGY_BH_DATA_SAMPLE_FMT 3224
#   define SEGY_DSF_REAL_4      1
#   define SEGY_DSF_INT_4       2
#   define SEGY_DSF_INT_2       3
#   define SEGY_DSF_FIXG_4      4
#   define SEGY_DSF_IEEE_REAL_4 5
#   define SEGY_DSF_INT_1       8
#define SEGY_BH_CDP_FOLD    3226
#define SEGY_BH_TRACES_SORTED   3228
#   define SEGY_TS_AS_RECORDED  1
#   define SEGY_TS_CDP_ENSEMBLE 2
#   define SEGY_TS_SINGLE_FOLD  3
#   define SEGY_TS_HORIZ_STACKED    4
#define SEGY_BH_VERTICAL_SUM    3230
#define SEGY_BH_SWEEP_S_FREQ    3232
#define SEGY_BH_SWEEP_E_FREQ    3234
#define SEGY_BH_SWEEP_LENGTH    3236
#define SEGY_BH_SWEEP_TYPE  3238
#   define SEGY_ST_LINEAR       1
#   define SEGY_ST_PARABOLIC    2
#   define SEGY_ST_EXPONENTIAL  3
#   define SEGY_ST_OTHER        4
#define SEGY_BH_SWEEP_TR_NUMBER 3240
#define SEGY_BH_SWEEP_TAP_S_LEN 3242
#define SEGY_BH_SWEEP_TAP_E_LEN 3244
#define SEGY_BH_SWEEP_TAP_TYPE  3246
#   define SEGY_STT_LINEAR      1
#   define SEGY_STT_COS     2
#   define SEGY_STT_OTHER       3
#define SEGY_BH_COR_DATA_TRACES 3248
#   define SEGY_CDT_NO      1
#   define SEGY_CDT_YES     2
#define SEGY_BH_BIN_GAIN_RECOV  3250
#   define SEGY_BGR_YES     1
#   define SEGY_BGR_NO      2
#define SEGY_BH_AMPL_RECOV_METH 3252
#   define SEGY_ARM_NONE        1
#   define SEGY_ARM_SPHER_DIV   2
#   define SEGY_ARM_AGC     3
#   define SEGY_ARM_OTHER       4
#define SEGY_BH_MEASUREMENT 3254
#   define SEGY_M_METERS        1
#   define SEGY_M_FEET      2
#define SEGY_BH_IMP_POLARITY    3256
#   define SEGY_IP_NEGATIVE     1
#   define SEGY_IP_POSITIVE     2
#define SEGY_BH_VIBR_POLARITY   3258
#   define SEGY_VP_337_22       1
#   define SEGY_VP_22_67        2
#   define SEGY_VP_67_112       3
#   define SEGY_VP_112_157      4
#   define SEGY_VP_157_202      5
#   define SEGY_VP_202_247      6
#   define SEGY_VP_247_292      7
#   define SEGY_VP_292_337      8


/***********************************************************************
 *
 * ÄÞàÜÐâ ×ÐÓÞÛÞÒÚÐ âàÐááë SEGY (Trace identification header).
 *
 ***********************************************************************/

/*
 * BINARY TRACE HEADER (240 bytes)
 */
/*      ¸Üï ßÞÛï		ÁÜÕéÕÝØÕ Ò ÑÐÙâÐå Þâ ÝÐçÐÛÐ âàÐááë */
#define SEGY_TH_SEQ_NUM_LINE    0
#define SEGY_TH_SEQ_NUM_REEL    4
#define SEGY_TH_FIELD_REC_NUM   8
#define SEGY_TH_NUM_REC     12
#define SEGY_TH_SP_NUM      16
#define SEGY_TH_CDP_NUM     20
#define SEGY_TH_NUM_CDP_ENSEM   24
#define SEGY_TH_TRACE_ID    28
#   define SEGY_TRID_OTHER      (-1)
#   define SEGY_TRID_UNKNOWN    0
#   define SEGY_TRID_SEISMIC    1
#   define SEGY_TRID_DEAD       2
#   define SEGY_TRID_DUMMY      3
#   define SEGY_TRID_TIME_BREAK 4
#   define SEGY_TRID_UPHOLE     5
#   define SEGY_TRID_SWEEP      6
#   define SEGY_TRID_TIMING     7
#   define SEGY_TRID_WATER_BREAK    8
#   define SEGY_TRID_NF_GUN_SIGN    9
#   define SEGY_TRID_FF_GUN_SIGN    10
#   define SEGY_TRID_SEIS_PRES_SENS 11
#   define SEGY_TRID_MC_VERT_COMP   12
#   define SEGY_TRID_MC_XLINE_COMP  13
#   define SEGY_TRID_MC_INLINE_COMP 14
#   define SEGY_TRID_RMC_VERT_COMP  15
#   define SEGY_TRID_RMC_TRANS_COMP 16
#   define SEGY_TRID_RMC_RADIA_COMP 17
#   define SEGY_TRID_VIB_REACT_MASS 18
#   define SEGY_TRID_VIB_BASEPLATE  19
#   define SEGY_TRID_VIB_EST_GFORCE 20
#   define SEGY_TRID_VIB_REFERECE   21
#   define SEGY_TRID_TIME_VEL_PAIR  22
#define SEGY_TH_VER_SUMMED  30
#define SEGY_TH_HOR_STACKED 32
#define SEGY_TH_DATA_USE    34
#   define SEGY_DU_PRODUCTION   1
#   define SEGY_DU_TEST     2
#define SEGY_TH_DISTANCE    36
#define SEGY_TH_RCV_GRP_ELEV    40
#define SEGY_TH_SOURCE_ELEV 44
#define SEGY_TH_SRC_DEPTH   48
#define SEGY_TH_RCV_DATUM_ELEV  52
#define SEGY_TH_SRC_DATUM_ELEV  56
#define SEGY_TH_WATER_DEPTH_SRC 60
#define SEGY_TH_WATER_DEPTH_RCV 64
#define SEGY_TH_ELEV_SCALER 68
/* Scaler for elevations (40-64): >0 - multiplier; <0 - divider */
#define SEGY_TH_COORD_SCALER    70
/* Scaler for coordinates (72-86): >0 - multiplier; <0 - divider */
#define SEGY_TH_SRC_X       72
#define SEGY_TH_SRC_Y       76
#define SEGY_TH_RCV_X       80
#define SEGY_TH_RCV_Y       84
#define SEGY_TH_COORD_UNIT  88
#   define SEGY_CU_LENGTH       1
#   define SEGY_CU_SECONDS_OF_ARC   2
#define SEGY_TH_WEATHERING_VEL  90
#define SEGY_TH_SUBWEATHER_VEL  92
#define SEGY_TH_SRC_UPHOLE_TIME 94
#define SEGY_TH_RCV_UPHOLE_TIME 96
#define SEGY_TH_SRC_STATIC_CORR 98
#define SEGY_TH_RCV_STATIC_CORR 100
#define SEGY_TH_TOTAL_STATIC    102
#define SEGY_TH_LAG_TIME_A  104
#define SEGY_TH_LAG_TIME_B  106
#define SEGY_TH_DELAY_REC_TIME  108
#define SEGY_TH_MUTE_TIME_START 110
#define SEGY_TH_MUTE_TIME_END   112
#define SEGY_TH_SAMPLES_TRACE   114
#define SEGY_TH_SAMPLE_INTERVAL 116
#define SEGY_TH_FIELD_GAIN_TYPE 118
#   define SEGY_FGT_FIXED       1
#   define SEGY_FGT_BINARY      2
#   define SEGY_FGT_FLOATING_PT 3
#define SEGY_TH_GAIN_CONSTANT   120
#define SEGY_TH_INITIAL_GAIN    122
#define SEGY_TH_CORRELATED  124
#   define SEGY_C_NO        1
#   define SEGY_C_YES       2
#define SEGY_TH_SWEEP_S_FREQ    126
#define SEGY_TH_SWEEP_E_FREQ    128
#define SEGY_TH_SWEEP_LENGTH    130
#define SEGY_TH_SWEEP_TYPE  132
/* the same values as in SEGY_BH_SWEEP_TYPE */
#define SEGY_TH_SWEEP_TAP_S_LEN 134
#define SEGY_TH_SWEEP_TAP_E_LEN 136
#define SEGY_TH_SWEEP_TAP_TYPE  138
/* the same values as in SEGY_BH_SWEEP_TAP_TYPE */
#define SEGY_TH_ALIAS_FILT_FREQ 140
#define SEGY_TH_ALIAS_FILT_SLOP 142
#define SEGY_TH_NOTCH_FILT_FREQ 144
#define SEGY_TH_NOTCH_FILT_SLOP 146
#define SEGY_TH_LOW_CUT_FREQ    148
#define SEGY_TH_HIGH_CUT_FREQ   150
#define SEGY_TH_LOW_CUT_SLOPE   152
#define SEGY_TH_HIGH_CUT_SLOPE  154
#define SEGY_TH_YEAR_DATA_REC   156
#define SEGY_TH_DAY_OF_YEAR 158
#define SEGY_TH_24_HOUR_OF_DAY  160
#define SEGY_TH_MINUTE_OF_HOUR  162
#define SEGY_TH_SECOND_OF_MINUT 164
#define SEGY_TH_TIME_BASIS_CODE 166
#   define SEGY_TBC_LOCAL       1
#   define SEGY_TBC_GMT     2
#   define SEGY_TBC_OTHER       3
#define SEGY_TH_WEIGHT_FACTOR   168
#define SEGY_TH_ROLL_GP_GRP_NO  170
#define SEGY_TH_TRACE_GP_GRP_NO 172
#define SEGY_TH_LAST_GP_GRP_NO  174
#define SEGY_TH_GAP_SIZE    176
#define SEGY_TH_OVERTRAVEL_TAP  178
#   define SEGY_OT_DOWN_OR_BEHIND   1
#   define SEGY_OT_UP_OR_AHEAD  2

/* VSP extensions: */
#define SEGY_TH_VSP_HCAB    180
#define SEGY_TH_VSP_XSP     184
#define SEGY_TH_VSP_YSP     188
#define SEGY_TH_VSP_ZSP     192
#define SEGY_TH_VSP_XOP     196
#define SEGY_TH_VSP_YOP     200
#define SEGY_TH_VSP_ZOP     204
#define SEGY_TH_VSP_XDP     208
#define SEGY_TH_VSP_YDP     212
#define SEGY_TH_VSP_ZDP     216
#define SEGY_TH_VSP_COMP    220
#define SEGY_TH_VSP_TYPE    221


/*
 * ÁÛÕÔãîéÐï ãáÛÞÒÝÞ-ÞÑàÐÑÐâëÒÐÕÜÐï çÐáâì ÔÕÙáâÒØâÕÛìÝÐ âÞÛìÚÞ ÕáÛØ
 * ÔÐÝÝëÙ äÐÙÛ ßÞÔÚÛîçÕÝ ½µ Ø× ßàÞÓàÐÜÜë âàÐÝáäÞàÜÐæØØ (áÜÞâàØ ft).
 */
#ifndef _filetrans_

#include <mix/Types.h>

/***********************************************************************
 * ¾ßØáÐÝØÕ áâàãÚâãàë äÐÙÛÐ âàÐáá äÞàÜÐâÐ SEG-Y
 ***********************************************************************/

/* ±ØÝÐàÝëÙ ×ÐÓÞÛÞÒÞÚ äÐÙÛÐ äÞàÜÐâÐ SEG-Y
   ÁÞÔÕàÖØâ ÞÑéãî ØÝäÞàÜÐæØî Þ âàÐááÐå /
typedef struct
{
  /*    ¸Üï Ò áâàãÚâãàÕ         ÁØÜÒÞÛìÝÞÕ áÜÕéÕÝØÕ ÁÜÕéÕÝØÕ Ò ÑÐÙâÐå */
  Int4  job_id;         /* SEGY_BH_JOB_ID       3200 */
  Int4  line_no;        /**SEGY_BH_LINE_NO      3204 */
  Int4  reel_no;        /**SEGY_BH_REEL_NO      3208 */
  Int2  data_traces_rec;    /**SEGY_BH_DATA_TRACES_REC  3212 */
  Int2  aux_traces_rec;     /**SEGY_BH_AUX_TRACES_REC   3214 */
  Int2  sample_interval;    /**SEGY_BH_SAMPLE_INTERVAL  3216 */
  Int2  orig_sample_int;    /* SEGY_BH_ORIG_SAMPLE_INT  3218 */
  Int2  samples_trace;      /**SEGY_BH_SAMPLES_TRACE    3220 */
  Int2  orig_samples_tr;    /* SEGY_BH_ORIG_SAMPLES_TR  3222 */
  Int2  data_sample_fmt;    /**SEGY_BH_DATA_SAMPLE_FMT  3224 */
                /* SEGY_DSF_REAL_4  1
                   SEGY_DSF_INT_4   2
                   SEGY_DSF_INT_2   3
                   SEGY_DSF_FIXG_4  4
                   SEGY_DSF_IEEE_REAL_4 5
                   SEGY_DSF_INT_1   8 */
  Int2  cdp_fold;       /**SEGY_BH_CDP_FOLD     3226 */
  Int2  traces_sorted;      /* SEGY_BH_TRACES_SORTED    3228 */
                /* SEGY_TS_AS_RECORDED  1
                   SEGY_TS_CDP_ENSEMBLE 2
                   SEGY_TS_SINGLE_FOLD  3
                   SEGY_TS_HORIZ_STACKED 4 */
  Int2  vertical_sum;       /* SEGY_BH_VERTICAL_SUM     3230 */
  Int2  sweep_s_freq;       /* SEGY_BH_SWEEP_S_FREQ     3232 */
  Int2  sweep_e_freq;       /* SEGY_BH_SWEEP_E_FREQ     3234 */
  Int2  sweep_length;       /* SEGY_BH_SWEEP_LENGTH     3236 */
  Int2  sweep_type;     /* SEGY_BH_SWEEP_TYPE       3238 */
                /* SEGY_ST_LINEAR   1
                   SEGY_ST_PARABOLIC    2
                   SEGY_ST_EXPONENTIAL  3
                   SEGY_ST_OTHER    4 */
  Int2  sweep_tr_number;    /* SEGY_BH_SWEEP_TR_NUMBER  3240 */
  Int2  sweep_tap_s_len;    /* SEGY_BH_SWEEP_TAP_S_LEN  3242 */
  Int2  sweep_tap_e_len;    /* SEGY_BH_SWEEP_TAP_E_LEN  3244 */
  Int2  sweep_tap_type;     /* SEGY_BH_SWEEP_TAP_TYPE   3246 */
                /* SEGY_STT_LINEAR  1
                   SEGY_STT_COS     2
                   SEGY_STT_OTHER   3 */
  Int2  cor_data_traces;    /* SEGY_BH_COR_DATA_TRACES  3248 */
                /* SEGY_CDT_NO      1
                   SEGY_CDT_YES     2 */
  Int2  bin_gain_recov;     /* SEGY_BH_BIN_GAIN_RECOV   3250 */
                /* SEGY_BGR_YES     1
                   SEGY_BGR_NO      2 */
  Int2  ampl_recov_meth;    /* SEGY_BH_AMPL_RECOV_METH  3252 */
                /* SEGY_ARM_NONE    1
                   SEGY_ARM_SPHER_DIV   2
                   SEGY_ARM_AGC     3
                   SEGY_ARM_OTHER   4 */
  Int2  measurement;        /**SEGY_BH_MEASUREMENT      3254 */
                /* SEGY_M_METERS    1
                   SEGY_M_FEET      2 */
  Int2  imp_polarity;       /* SEGY_BH_IMP_POLARITY     3256 */
                /* SEGY_IP_NEGATIVE 1
                   SEGY_IP_POSITIVE 2 */
  Int2  vibr_polarity;      /* SEGY_BH_VIBR_POLARITY    3258 */
                /* SEGY_VP_337_22   1
                   SEGY_VP_22_67    2
                   SEGY_VP_67_112   3
                   SEGY_VP_112_157  4
                   SEGY_VP_157_202  5
                   SEGY_VP_202_247  6
                   SEGY_VP_247_292  7
                   SEGY_VP_292_337  8 */

#ifdef NO_VSP_EXTENSION
  Int1  reserved[340];
#else
  Int1  reserved[340];
#endif /* NO_VSP_EXTENSION */

}   SEGY_BinaryHeader;

/* ÁâàãÚâãàÐ, ãÔÞÑÝÐï ÔÛï ßàÕÞÑàÐ×ÞÒÐÝØï
   ÑØÝÐàÝÞÓÞ ×ÐÓÞÛÞÒÚÐ äÐÙÛÐ äÞàÜÐâÐ SEG-Y */
typedef struct
{
  Int4  data1_int_4[3];
  Int2  data2_int_2[24];
  Int1  data3_undef[340];

}   SEGY_BinaryHeader_blocks;


/* ±ØÝÐàÝëÙ ×ÐÓÞÛÞÒÞÚ âàÐááë äÞàÜÐâÐ SEG-Y (á àÐáèØàÕÝØïÜØ ÔÛï ²Á¿)
   ÁÞÔÕàÖØâ ØÝäÞàÜÐæØî Þ ÚÞÝÚàÕâÝÞÙ âàÐááÕ */
typedef struct
{
  /*    ¸Üï Ò áâàãÚâãàÕ         ÁØÜÒÞÛìÝÞÕ áÜÕéÕÝØÕ ÁÜÕéÕÝØÕ Ò ÑÐÙâÐå */
  Int4  seq_num_line;       /**SEGY_TH_SEQ_NUM_LINE     0 */
  Int4  seq_num_reel;       /* SEGY_TH_SEQ_NUM_REEL     4 */
  Int4  field_rec_num;      /**SEGY_TH_FIELD_REC_NUM    8 */
  Int4  num_rec;        /**SEGY_TH_NUM_REC      12 */
  Int4  sp_num;         /* SEGY_TH_SP_NUM       16 */
  Int4  cdp_num;        /* SEGY_TH_CDP_NUM      20 */
  Int4  num_cdp_ensem;      /* SEGY_TH_NUM_CDP_ENSEM    24 */
  Int2  trace_id;       /**SEGY_TH_TRACE_ID     28 */
                /* SEGY_TRID_SEISMIC    1
                   SEGY_TRID_DEAD   2
                   SEGY_TRID_DUMMY  3
                   SEGY_TRID_TIME_BREAK 4
                   SEGY_TRID_UPHOLE 5
                   SEGY_TRID_SWEEP  6
                   SEGY_TRID_TIMING 7
                   SEGY_TRID_WATER_BREAK 8 */
  Int2  ver_summed;     /* SEGY_TH_VER_SUMMED       30 */
  Int2  hor_stacked;        /* SEGY_TH_HOR_STACKED      32 */
  Int2  data_use;       /* SEGY_TH_DATA_USE     34 */
                /* SEGY_DU_PRODUCTION   1
                   SEGY_DU_TEST     2 */
  Int4  distance;       /* SEGY_TH_DISTANCE     36 */
  Int4  rcv_grp_elev;       /* SEGY_TH_RCV_GRP_ELEV     40 */
  Int4  source_elev;        /* SEGY_TH_SOURCE_ELEV      44 */
  Int4  src_depth;      /* SEGY_TH_SRC_DEPTH        48 */
  Int4  rcv_datum_elev;     /* SEGY_TH_RCV_DATUM_ELEV   52 */
  Int4  src_datum_elev;     /* SEGY_TH_SRC_DATUM_ELEV   56 */
  Int4  water_depth_src;    /* SEGY_TH_WATER_DEPTH_SRC  60 */
  Int4  water_depth_rcv;    /* SEGY_TH_WATER_DEPTH_RCV  64 */
  /* Scaler for elevations (40-64): >0 - multiplier; <0 - divider */
  Int2  elev_scaler;        /* SEGY_TH_ELEV_SCALER      68 */
  /* Scaler for coordinates (72-86): >0 - multiplier; <0 - divider */
  Int2  coord_scaler;       /* SEGY_TH_COORD_SCALER     70 */
  Int4  src_x;          /* SEGY_TH_SRC_X        72 */
  Int4  src_y;          /* SEGY_TH_SRC_Y        76 */
  Int4  rcv_x;          /* SEGY_TH_RCV_X        80 */
  Int4  rcv_y;          /* SEGY_TH_RCV_Y        84 */
  Int2  coord_unit;     /* SEGY_TH_COORD_UNIT       88 */
                /* SEGY_CU_LENGTH     1
                   SEGY_CU_SECONDS_OF_ARC 2 */
  Int2  weathering_vel;     /* SEGY_TH_WEATHERING_VEL   90 */
  Int2  subweather_vel;     /* SEGY_TH_SUBWEATHER_VEL   92 */
  Int2  src_uphole_time;    /* SEGY_TH_SRC_UPHOLE_TIME  94 */
  Int2  rcv_uphole_time;    /* SEGY_TH_RCV_UPHOLE_TIME  96 */
  Int2  src_static_corr;    /* SEGY_TH_SRC_STATIC_CORR  98 */
  Int2  rcv_static_corr;    /* SEGY_TH_RCV_STATIC_CORR  100 */
  Int2  total_static;       /* SEGY_TH_TOTAL_STATIC     102 */
  Int2  lag_time_a;     /* SEGY_TH_LAG_TIME_A       104 */
  Int2  lag_time_b;     /* SEGY_TH_LAG_TIME_B       106 */
  Int2  delay_rec_time;     /* SEGY_TH_DELAY_REC_TIME   108 */
  Int2  mute_time_start;    /* SEGY_TH_MUTE_TIME_START  110 */
  Int2  mute_time_end;      /* SEGY_TH_MUTE_TIME_END    112 */
  Int2  samples_trace;      /**SEGY_TH_SAMPLES_TRACE    114 */
  Int2  sample_interval;    /**SEGY_TH_SAMPLE_INTERVAL  116 */
  Int2  field_gain_type;    /* SEGY_TH_FIELD_GAIN_TYPE  118 */
                /* SEGY_FGT_FIXED   1
                   SEGY_FGT_BINARY  2
                   SEGY_FGT_FLOATING_PT 3 */
  Int2  gain_constant;      /* SEGY_TH_GAIN_CONSTANT    120 */
  Int2  initial_gain;       /* SEGY_TH_INITIAL_GAIN     122 */
  Int2  correlated;     /* SEGY_TH_CORRELATED       124 */
                /* SEGY_C_NO        1
                   SEGY_C_YES       2 */
  Int2  sweep_s_freq;       /* SEGY_TH_SWEEP_S_FREQ     126 */
  Int2  sweep_e_freq;       /* SEGY_TH_SWEEP_E_FREQ     128 */
  Int2  sweep_length;       /* SEGY_TH_SWEEP_LENGTH     130 */
  Int2  sweep_type;     /* SEGY_TH_SWEEP_TYPE       132 */
                /* SEGY_ST_LINEAR   1
                   SEGY_ST_PARABOLIC    2
                   SEGY_ST_EXPONENTIAL  3
                   SEGY_ST_OTHER    4 */
  Int2  sweep_tap_s_len;    /* SEGY_TH_SWEEP_TAP_S_LEN  134 */
  Int2  sweep_tap_e_len;    /* SEGY_TH_SWEEP_TAP_E_LEN  136 */
  Int2  sweep_tap_type;     /* SEGY_TH_SWEEP_TAP_TYPE   138 */
                /* SEGY_STT_LINEAR  1
                   SEGY_STT_COS     2
                   SEGY_STT_OTHER   3 */
  Int2  alias_filt_freq;    /* SEGY_TH_ALIAS_FILT_FREQ  140 */
  Int2  alias_filt_slop;    /* SEGY_TH_ALIAS_FILT_SLOP  142 */
  Int2  notch_filt_freq;    /* SEGY_TH_NOTCH_FILT_FREQ  144 */
  Int2  notch_filt_slop;    /* SEGY_TH_NOTCH_FILT_SLOP  146 */
  Int2  low_cut_freq;       /* SEGY_TH_LOW_CUT_FREQ     148 */
  Int2  high_cut_freq;      /* SEGY_TH_HIGH_CUT_FREQ    150 */
  Int2  low_cut_slope;      /* SEGY_TH_LOW_CUT_SLOPE    152 */
  Int2  high_cut_slope;     /* SEGY_TH_HIGH_CUT_SLOPE   154 */
  Int2  year_data_rec;      /* SEGY_TH_YEAR_DATA_REC    156 */
  Int2  day_of_year;        /* SEGY_TH_DAY_OF_YEAR      158 */
  Int2  hour24_of_day;      /* SEGY_TH_24_HOUR_OF_DAY   160 */
  Int2  minute_of_hour;     /* SEGY_TH_MINUTE_OF_HOUR   162 */
  Int2  second_of_minut;    /* SEGY_TH_SECOND_OF_MINUT  164 */
  Int2  time_basis_code;    /* SEGY_TH_TIME_BASIS_CODE  166 */
                /* SEGY_TBC_LOCAL   1
                   SEGY_TBC_GMT     2
                   SEGY_TBC_OTHER   3 */
  Int2  weight_factor;      /* SEGY_TH_WEIGHT_FACTOR    168 */
  Int2  roll_gp_grp_no;     /* SEGY_TH_ROLL_GP_GRP_NO   170 */
  Int2  trace_gp_grp_no;    /* SEGY_TH_TRACE_GP_GRP_NO  172 */
  Int2  last_gp_grp_no;     /* SEGY_TH_LAST_GP_GRP_NO   174 */
  Int2  gap_size;       /* SEGY_TH_GAP_SIZE     176 */
  Int2  overtravel_tap;     /* SEGY_TH_OVERTRAVEL_TAP   178 */
                /* SEGY_OT_DOWN_OR_BEHIND 1
                   SEGY_OT_UP_OR_AHEAD    2 */

#ifdef NO_VSP_EXTENSION
  Int1  reserved[60];
#else
  Int4  vsp_hcab;       /* SEGY_TH_VSP_HCAB     180 */
  Int4  vsp_xsp;        /* SEGY_TH_VSP_XSP      184 */
  Int4  vsp_ysp;        /* SEGY_TH_VSP_YSP      188 */
  Int4  vsp_zsp;        /* SEGY_TH_VSP_ZSP      192 */
  Int4  vsp_xop;        /* SEGY_TH_VSP_XOP      196 */
  Int4  vsp_yop;        /* SEGY_TH_VSP_YOP      200 */
  Int4  vsp_zop;        /* SEGY_TH_VSP_ZOP      204 */
  Int4  vsp_xdp;        /* SEGY_TH_VSP_XDP      208 */
  Int4  vsp_ydp;        /* SEGY_TH_VSP_YDP      212 */
  Int4  vsp_zdp;        /* SEGY_TH_VSP_ZDP      216 */
  Char  vsp_comp;       /* SEGY_TH_VSP_COMP     220 */
  Char  vsp_type;       /* SEGY_TH_VSP_TYPE     221 */

  Int1  reserved[18];
#endif /* NO_VSP_EXTENSION */

}   SEGY_TraceHeader;

/* ÁâàãÚâãàÐ, ãÔÞÑÝÐï ÔÛï ßàÕÞÑàÐ×ÞÒÐÝØï
   ×ÐÓÞÛÞÒÚÐ âàÐááë äÞàÜÐâÐ SEG-Y */
typedef struct
{
  Int4  data1_int_4[7];
  Int2  data2_int_2[4];
  Int4  data3_int_4[8];
  Int2  data4_int_2[2];
  Int4  data5_int_4[4];
  Int2  data6_int_2[46];
#ifdef NO_VSP_EXTENSION
  Int1  data7_undef[60];
#else
  Int4  data7_int_4[10];
  Int1  data8_int_1[2];
  Int1  data9_undef[18];
#endif /* NO_VSP_EXTENSION */

}   SEGY_TraceHeader_blocks;


#endif /* _filetrans_ */

#endif /* segy_file.h */
*/
typedef struct
{
  /*    ¸Üï Ò áâàãÚâãàÕ         ÁØÜÒÞÛìÝÞÕ áÜÕéÕÝØÕ ÁÜÕéÕÝØÕ Ò ÑÐÙâÐå */
  Int4  job_id;         /* SEGY_BH_JOB_ID       3200 */
  Int4  line_no;        
  Int4  reel_no;        
  Int2  data_traces_rec;    
  Int2  aux_traces_rec;     
  Int2  sample_interval;    
  Int2  orig_sample_int;    /* SEGY_BH_ORIG_SAMPLE_INT  3218 */
  Int2  samples_trace;      
  Int2  orig_samples_tr;    /* SEGY_BH_ORIG_SAMPLES_TR  3222 */
  Int2  data_sample_fmt;    
                /* SEGY_DSF_REAL_4  1
                   SEGY_DSF_INT_4   2
                   SEGY_DSF_INT_2   3
                   SEGY_DSF_FIXG_4  4
                   SEGY_DSF_IEEE_REAL_4 5
                   SEGY_DSF_INT_1   8 */
  Int2  cdp_fold;       
  Int2  traces_sorted;      /* SEGY_BH_TRACES_SORTED    3228 */
                /* SEGY_TS_AS_RECORDED  1
                   SEGY_TS_CDP_ENSEMBLE 2
                   SEGY_TS_SINGLE_FOLD  3
                   SEGY_TS_HORIZ_STACKED 4 */
  Int2  vertical_sum;       /* SEGY_BH_VERTICAL_SUM     3230 */
  Int2  sweep_s_freq;       /* SEGY_BH_SWEEP_S_FREQ     3232 */
  Int2  sweep_e_freq;       /* SEGY_BH_SWEEP_E_FREQ     3234 */
  Int2  sweep_length;       /* SEGY_BH_SWEEP_LENGTH     3236 */
  Int2  sweep_type;     /* SEGY_BH_SWEEP_TYPE       3238 */
                /* SEGY_ST_LINEAR   1
                   SEGY_ST_PARABOLIC    2
                   SEGY_ST_EXPONENTIAL  3
                   SEGY_ST_OTHER    4 */
  Int2  sweep_tr_number;    /* SEGY_BH_SWEEP_TR_NUMBER  3240 */
  Int2  sweep_tap_s_len;    /* SEGY_BH_SWEEP_TAP_S_LEN  3242 */
  Int2  sweep_tap_e_len;    /* SEGY_BH_SWEEP_TAP_E_LEN  3244 */
  Int2  sweep_tap_type;     /* SEGY_BH_SWEEP_TAP_TYPE   3246 */
                /* SEGY_STT_LINEAR  1
                   SEGY_STT_COS     2
                   SEGY_STT_OTHER   3 */
  Int2  cor_data_traces;    /* SEGY_BH_COR_DATA_TRACES  3248 */
                /* SEGY_CDT_NO      1
                   SEGY_CDT_YES     2 */
  Int2  bin_gain_recov;     /* SEGY_BH_BIN_GAIN_RECOV   3250 */
                /* SEGY_BGR_YES     1
                   SEGY_BGR_NO      2 */
  Int2  ampl_recov_meth;    /* SEGY_BH_AMPL_RECOV_METH  3252 */
                /* SEGY_ARM_NONE    1
                   SEGY_ARM_SPHER_DIV   2
                   SEGY_ARM_AGC     3
                   SEGY_ARM_OTHER   4 */
  Int2  measurement;        
                /* SEGY_M_METERS    1
                   SEGY_M_FEET      2 */
  Int2  imp_polarity;       /* SEGY_BH_IMP_POLARITY     3256 */
                /* SEGY_IP_NEGATIVE 1
                   SEGY_IP_POSITIVE 2 */
  Int2  vibr_polarity;      /* SEGY_BH_VIBR_POLARITY    3258 */
                /* SEGY_VP_337_22   1
                   SEGY_VP_22_67    2
                   SEGY_VP_67_112   3
                   SEGY_VP_112_157  4
                   SEGY_VP_157_202  5
                   SEGY_VP_202_247  6
                   SEGY_VP_247_292  7
                   SEGY_VP_292_337  8 */

#ifdef NO_VSP_EXTENSION
  Int1  reserved[340];
#else
  Int1  reserved[340];
#endif /* NO_VSP_EXTENSION */

}   SEGY_BinaryHeader;

/* ÁâàãÚâãàÐ, ãÔÞÑÝÐï ÔÛï ßàÕÞÑàÐ×ÞÒÐÝØï
   ÑØÝÐàÝÞÓÞ ×ÐÓÞÛÞÒÚÐ äÐÙÛÐ äÞàÜÐâÐ SEG-Y */
typedef struct
{
  Int4  data1_int_4[3];
  Int2  data2_int_2[24];
  Int1  data3_undef[340];

}   SEGY_BinaryHeader_blocks;


/* ±ØÝÐàÝëÙ ×ÐÓÞÛÞÒÞÚ âàÐááë äÞàÜÐâÐ SEG-Y (á àÐáèØàÕÝØïÜØ ÔÛï ²Á¿)
   ÁÞÔÕàÖØâ ØÝäÞàÜÐæØî Þ ÚÞÝÚàÕâÝÞÙ âàÐááÕ */
typedef struct
{
  /*    ¸Üï Ò áâàãÚâãàÕ         ÁØÜÒÞÛìÝÞÕ áÜÕéÕÝØÕ ÁÜÕéÕÝØÕ Ò ÑÐÙâÐå */
  Int4  seq_num_line;       
  Int4  seq_num_reel;       /* SEGY_TH_SEQ_NUM_REEL     4 */
  Int4  field_rec_num;      
  Int4  num_rec;        
  Int4  sp_num;         /* SEGY_TH_SP_NUM       16 */
  Int4  cdp_num;        /* SEGY_TH_CDP_NUM      20 */
  Int4  num_cdp_ensem;      /* SEGY_TH_NUM_CDP_ENSEM    24 */
  Int2  trace_id;       
                /* SEGY_TRID_SEISMIC    1
                   SEGY_TRID_DEAD   2
                   SEGY_TRID_DUMMY  3
                   SEGY_TRID_TIME_BREAK 4
                   SEGY_TRID_UPHOLE 5
                   SEGY_TRID_SWEEP  6
                   SEGY_TRID_TIMING 7
                   SEGY_TRID_WATER_BREAK 8 */
  Int2  ver_summed;     /* SEGY_TH_VER_SUMMED       30 */
  Int2  hor_stacked;        /* SEGY_TH_HOR_STACKED      32 */
  Int2  data_use;       /* SEGY_TH_DATA_USE     34 */
                /* SEGY_DU_PRODUCTION   1
                   SEGY_DU_TEST     2 */
  Int4  distance;       /* SEGY_TH_DISTANCE     36 */
  Int4  rcv_grp_elev;       /* SEGY_TH_RCV_GRP_ELEV     40 */
  Int4  source_elev;        /* SEGY_TH_SOURCE_ELEV      44 */
  Int4  src_depth;      /* SEGY_TH_SRC_DEPTH        48 */
  Int4  rcv_datum_elev;     /* SEGY_TH_RCV_DATUM_ELEV   52 */
  Int4  src_datum_elev;     /* SEGY_TH_SRC_DATUM_ELEV   56 */
  Int4  water_depth_src;    /* SEGY_TH_WATER_DEPTH_SRC  60 */
  Int4  water_depth_rcv;    /* SEGY_TH_WATER_DEPTH_RCV  64 */
  /* Scaler for elevations (40-64): >0 - multiplier; <0 - divider */
  Int2  elev_scaler;        /* SEGY_TH_ELEV_SCALER      68 */
  /* Scaler for coordinates (72-86): >0 - multiplier; <0 - divider */
  Int2  coord_scaler;       /* SEGY_TH_COORD_SCALER     70 */
  Int4  src_x;          /* SEGY_TH_SRC_X        72 */
  Int4  src_y;          /* SEGY_TH_SRC_Y        76 */
  Int4  rcv_x;          /* SEGY_TH_RCV_X        80 */
  Int4  rcv_y;          /* SEGY_TH_RCV_Y        84 */
  Int2  coord_unit;     /* SEGY_TH_COORD_UNIT       88 */
                /* SEGY_CU_LENGTH     1
                   SEGY_CU_SECONDS_OF_ARC 2 */
  Int2  weathering_vel;     /* SEGY_TH_WEATHERING_VEL   90 */
  Int2  subweather_vel;     /* SEGY_TH_SUBWEATHER_VEL   92 */
  Int2  src_uphole_time;    /* SEGY_TH_SRC_UPHOLE_TIME  94 */
  Int2  rcv_uphole_time;    /* SEGY_TH_RCV_UPHOLE_TIME  96 */
  Int2  src_static_corr;    /* SEGY_TH_SRC_STATIC_CORR  98 */
  Int2  rcv_static_corr;    /* SEGY_TH_RCV_STATIC_CORR  100 */
  Int2  total_static;       /* SEGY_TH_TOTAL_STATIC     102 */
  Int2  lag_time_a;     /* SEGY_TH_LAG_TIME_A       104 */
  Int2  lag_time_b;     /* SEGY_TH_LAG_TIME_B       106 */
  Int2  delay_rec_time;     /* SEGY_TH_DELAY_REC_TIME   108 */
  Int2  mute_time_start;    /* SEGY_TH_MUTE_TIME_START  110 */
  Int2  mute_time_end;      /* SEGY_TH_MUTE_TIME_END    112 */
  Int2  samples_trace;      
  Int2  sample_interval;    
  Int2  field_gain_type;    /* SEGY_TH_FIELD_GAIN_TYPE  118 */
                /* SEGY_FGT_FIXED   1
                   SEGY_FGT_BINARY  2
                   SEGY_FGT_FLOATING_PT 3 */
  Int2  gain_constant;      /* SEGY_TH_GAIN_CONSTANT    120 */
  Int2  initial_gain;       /* SEGY_TH_INITIAL_GAIN     122 */
  Int2  correlated;     /* SEGY_TH_CORRELATED       124 */
                /* SEGY_C_NO        1
                   SEGY_C_YES       2 */
  Int2  sweep_s_freq;       /* SEGY_TH_SWEEP_S_FREQ     126 */
  Int2  sweep_e_freq;       /* SEGY_TH_SWEEP_E_FREQ     128 */
  Int2  sweep_length;       /* SEGY_TH_SWEEP_LENGTH     130 */
  Int2  sweep_type;     /* SEGY_TH_SWEEP_TYPE       132 */
                /* SEGY_ST_LINEAR   1
                   SEGY_ST_PARABOLIC    2
                   SEGY_ST_EXPONENTIAL  3
                   SEGY_ST_OTHER    4 */
  Int2  sweep_tap_s_len;    /* SEGY_TH_SWEEP_TAP_S_LEN  134 */
  Int2  sweep_tap_e_len;    /* SEGY_TH_SWEEP_TAP_E_LEN  136 */
  Int2  sweep_tap_type;     /* SEGY_TH_SWEEP_TAP_TYPE   138 */
                /* SEGY_STT_LINEAR  1
                   SEGY_STT_COS     2
                   SEGY_STT_OTHER   3 */
  Int2  alias_filt_freq;    /* SEGY_TH_ALIAS_FILT_FREQ  140 */
  Int2  alias_filt_slop;    /* SEGY_TH_ALIAS_FILT_SLOP  142 */
  Int2  notch_filt_freq;    /* SEGY_TH_NOTCH_FILT_FREQ  144 */
  Int2  notch_filt_slop;    /* SEGY_TH_NOTCH_FILT_SLOP  146 */
  Int2  low_cut_freq;       /* SEGY_TH_LOW_CUT_FREQ     148 */
  Int2  high_cut_freq;      /* SEGY_TH_HIGH_CUT_FREQ    150 */
  Int2  low_cut_slope;      /* SEGY_TH_LOW_CUT_SLOPE    152 */
  Int2  high_cut_slope;     /* SEGY_TH_HIGH_CUT_SLOPE   154 */
  Int2  year_data_rec;      /* SEGY_TH_YEAR_DATA_REC    156 */
  Int2  day_of_year;        /* SEGY_TH_DAY_OF_YEAR      158 */
  Int2  hour24_of_day;      /* SEGY_TH_24_HOUR_OF_DAY   160 */
  Int2  minute_of_hour;     /* SEGY_TH_MINUTE_OF_HOUR   162 */
  Int2  second_of_minut;    /* SEGY_TH_SECOND_OF_MINUT  164 */
  Int2  time_basis_code;    /* SEGY_TH_TIME_BASIS_CODE  166 */
                /* SEGY_TBC_LOCAL   1
                   SEGY_TBC_GMT     2
                   SEGY_TBC_OTHER   3 */
  Int2  weight_factor;      /* SEGY_TH_WEIGHT_FACTOR    168 */
  Int2  roll_gp_grp_no;     /* SEGY_TH_ROLL_GP_GRP_NO   170 */
  Int2  trace_gp_grp_no;    /* SEGY_TH_TRACE_GP_GRP_NO  172 */
  Int2  last_gp_grp_no;     /* SEGY_TH_LAST_GP_GRP_NO   174 */
  Int2  gap_size;       /* SEGY_TH_GAP_SIZE     176 */
  Int2  overtravel_tap;     /* SEGY_TH_OVERTRAVEL_TAP   178 */
                /* SEGY_OT_DOWN_OR_BEHIND 1
                   SEGY_OT_UP_OR_AHEAD    2 */

#ifdef NO_VSP_EXTENSION
  Int1  reserved[60];
#else
  Int4  vsp_hcab;       /* SEGY_TH_VSP_HCAB     180 */
  Int4  vsp_xsp;        /* SEGY_TH_VSP_XSP      184 */
  Int4  vsp_ysp;        /* SEGY_TH_VSP_YSP      188 */
  Int4  vsp_zsp;        /* SEGY_TH_VSP_ZSP      192 */
  Int4  vsp_xop;        /* SEGY_TH_VSP_XOP      196 */
  Int4  vsp_yop;        /* SEGY_TH_VSP_YOP      200 */
  Int4  vsp_zop;        /* SEGY_TH_VSP_ZOP      204 */
  Int4  vsp_xdp;        /* SEGY_TH_VSP_XDP      208 */
  Int4  vsp_ydp;        /* SEGY_TH_VSP_YDP      212 */
  Int4  vsp_zdp;        /* SEGY_TH_VSP_ZDP      216 */
  Char  vsp_comp;       /* SEGY_TH_VSP_COMP     220 */
  Char  vsp_type;       /* SEGY_TH_VSP_TYPE     221 */

  Int1  reserved[18];
#endif /* NO_VSP_EXTENSION */

}   SEGY_TraceHeader;

/* ÁâàãÚâãàÐ, ãÔÞÑÝÐï ÔÛï ßàÕÞÑàÐ×ÞÒÐÝØï
   ×ÐÓÞÛÞÒÚÐ âàÐááë äÞàÜÐâÐ SEG-Y */
typedef struct
{
  Int4  data1_int_4[7];
  Int2  data2_int_2[4];
  Int4  data3_int_4[8];
  Int2  data4_int_2[2];
  Int4  data5_int_4[4];
  Int2  data6_int_2[46];
#ifdef NO_VSP_EXTENSION
  Int1  data7_undef[60];
#else
  Int4  data7_int_4[10];
  Int1  data8_int_1[2];
  Int1  data9_undef[18];
#endif /* NO_VSP_EXTENSION */

}   SEGY_TraceHeader_blocks;


#endif /* _filetrans_ */

#endif /* segy_file.h */