int conf_out(ui8_t *conf_bits) {
int conf_id;
int ret = 0;
conf_id = bits2val(conf_bits, 4);
if (conf_id == 6) {
gpx.sonde_id = bits2val(conf_bits+4, 4*6);
}
return ret;
}
void print_frame() {
int i;
int nib = 0;
int frid = -1;
manchester1(frame_rawbits, frame_bits);
deinterleave(frame_bits+CONF, 7, hamming_conf);
deinterleave(frame_bits+DAT1, 13, hamming_dat1);
deinterleave(frame_bits+DAT2, 13, hamming_dat2);
hamming(hamming_conf, 7, block_conf);
hamming(hamming_dat1, 13, block_dat1);
hamming(hamming_dat2, 13, block_dat2);
if (option_raw == 1) {
for (i = 0; i < 7; i++) {
nib = bits2val(block_conf+S*i, S);
printf("%01X", nib & 0xFF);
}
printf(" ");
for (i = 0; i < 13; i++) {
nib = bits2val(block_dat1+S*i, S);
printf("%01X", nib & 0xFF);
}
printf(" ");
for (i = 0; i < 13; i++) {
nib = bits2val(block_dat2+S*i, S);
printf("%01X", nib & 0xFF);
}
printf("\n");
}
else {
conf_out(block_conf);
frid = dat_out(block_dat1);
if (frid == 8) print_gpx();
frid = dat_out(block_dat2);
if (frid == 8) print_gpx();
}
}
int dat_out(ui8_t *dat_bits) {
int i, ret = 0;
static int fr_id;
// int jahr = 0, monat = 0, tag = 0, std = 0, min = 0;
int frnr = 0;
int msek = 0;
int lat = 0, lon = 0, height = 0;
int nib;
int dvv; // signed/unsigned 16bit
fr_id = bits2val(dat_bits+48, 4);
if (fr_id >= 0 && fr_id <= 8) {
for (i = 0; i < 13; i++) {
nib = bits2val(dat_bits+4*i, 4);
dat_str[fr_id][i] = nib2chr(nib);
}
dat_str[fr_id][13] = '\0';
}
if (fr_id == 0) {
start = 1;
frnr = bits2val(dat_bits+24, 8);
gpx.frnr = frnr;
}
if (fr_id == 1) {
// 00..31: ? GPS-Sats in Sicht?
msek = bits2val(dat_bits+32, 16);
gpx.sek = msek/1000.0;
}
if (fr_id == 2) {
lat = bits2val(dat_bits, 32);
gpx.lat = lat/1e7;
dvv = (short)bits2val(dat_bits+32, 16); // (short)? zusammen mit dir sollte unsigned sein
gpx.horiV = dvv/1e2;
}
if (fr_id == 3) {
lon = bits2val(dat_bits, 32);
gpx.lon = lon/1e7;
dvv = bits2val(dat_bits+32, 16) & 0xFFFF; // unsigned
gpx.dir = dvv/1e2;
}
if (fr_id == 4) {
height = bits2val(dat_bits, 32);
gpx.h = height/1e2;
dvv = (short)bits2val(dat_bits+32, 16); // signed
gpx.vertV = dvv/1e2;
}
if (fr_id == 5) {
}
if (fr_id == 6) {
}
if (fr_id == 7) {
}
if (fr_id == 8) {
gpx.jahr = bits2val(dat_bits, 12);
gpx.monat = bits2val(dat_bits+12, 4);
gpx.tag = bits2val(dat_bits+16, 5);
gpx.std = bits2val(dat_bits+21, 5);
gpx.min = bits2val(dat_bits+26, 6);
}
ret = fr_id;
return ret;
}
int main(int argc, char **argv) {
FILE *fp;
char *fpname;
int i, j;
int bit_count = 0,
header_found = 0,
bit, len;
int counter;
ui32_t val;
ui32_t dat2;
int lat, lat1, lat2,
lon, lon1, lon2,
alt, alt1, alt2;
int latdeg,londeg;
double latmin, lonmin;
ui32_t t1, t2, ms, min, std, tt, mm, jj;
#ifdef CYGWIN
_setmode(fileno(stdin), _O_BINARY); // _setmode(_fileno(stdin), _O_BINARY);
#endif
setbuf(stdout, NULL);
fpname = argv[0];
++argv;
while ((*argv) && (!wavloaded)) {
if ( (strcmp(*argv, "-h") == 0) || (strcmp(*argv, "--help") == 0) ) {
help_out:
fprintf(stderr, "%s <-n> [options] audio.wav\n", fpname);
fprintf(stderr, " n=1,2\n");
fprintf(stderr, " options:\n");
//fprintf(stderr, " -v, --verbose\n");
fprintf(stderr, " -r, --raw\n");
return 0;
}
else if ( (strcmp(*argv, "-r") == 0) || (strcmp(*argv, "--raw") == 0) ) {
option_raw = 1;
}
else if (strcmp(*argv, "--res") == 0) { option_res = 1; }
else if ( (strcmp(*argv, "-i") == 0) || (strcmp(*argv, "--invert") == 0) ) {
option_inv = 1; // nicht noetig
}
else if ( (strcmp(*argv, "-2") == 0) ) {
option2 = 1;
}
else if ( (strcmp(*argv, "-1") == 0) ) {
option1 = 1;
}
else if (strcmp(*argv, "--ecc") == 0) { option_ecc = 1; }
else if ( (strcmp(*argv, "-v") == 0) ) {
option_verbose = 1;
}
else {
if ((option1 == 1 && option2 == 1) || (!option_raw && option1 == 0 && option2 == 0)) goto help_out;
fp = fopen(*argv, "rb");
if (fp == NULL) {
fprintf(stderr, "%s konnte nicht geoeffnet werden\n", *argv);
return -1;
}
wavloaded = 1;
}
++argv;
}
if (!wavloaded) fp = stdin;
i = read_wav_header(fp);
if (i) {
fclose(fp);
return -1;
}
if (option_ecc) {
rs_init_BCH64();
}
bufpos = 0;
bit_count = 0;
while (!read_bits_fsk(fp, &bit, &len)) {
if (len == 0) { // reset_frame();
/*
if (byte_count > FRAME_LEN-20) {
print_frame(byte_count);
bit_count = 0;
byte_count = FRAMESTART;
header_found = 0;
}
*/
//inc_bufpos();
//buf[bufpos] = 'x';
continue; // ...
}
for (i = 0; i < len; i++) {
inc_bufpos();
buf[bufpos] = 0x30 + bit; // Ascii
if (!header_found) {
header_found = compare_subheader();
if (header_found) {
bit_count = 0;
for (j = 0; j < HEADLEN; j++) {
if (header_found % 2 == 1) frame_bits[j] = header0x049DCEbits[j] - 0x30;
else frame_bits[j] = header0xFB6230bits[j] - 0x30;
}
}
}
else {
frame_rawbits[bit_count] = 0x30 + bit;
bit_count++;
if (bit_count >= RAWBITFRAME_LEN/4-RAWHEADLEN) { // 600-48
frame_rawbits[bit_count] = '\0';
biphi_s(frame_rawbits, frame_bits+HEADLEN);
if (option_ecc) {
for (block = 0; block < 6; block++) {
// prepare block-codeword
for (j = 0; j < 46; j++) cw[45-j] = frame_bits[HEADLEN + block*46+j];
for (j = 46; j < 63; j++) cw[j] = 0;
errors = rs_decode_bch_gf2t2(cw, err_pos, err_val);
// check parity,padding
if (errors >= 0) {
check_err = 0;
for (i = 46; i < 63; i++) { if (cw[i] != 0) check_err = 0x1; }
par = 1;
for (i = 13; i < 13+16; i++) par ^= cw[i];
if (cw[12] != par) check_err |= 0x100;
par = 1;
for (i = 30; i < 30+16; i++) par ^= cw[i];
if (cw[29] != par) check_err |= 0x10;
if (check_err) errors = -3;
}
if (errors >= 0) {
for (j = 0; j < 46; j++) frame_bits[HEADLEN + block*46+j] = cw[45-j];
}
if (errors < 0) block_err[block] = 0xE;
else block_err[block] = errors;
}
}
if (!option2 && !option_raw) {
if (header_found % 2 == 1) {
val = bits2val(frame_bits+HEADLEN, 16);
counter = val & 0xFFFF;
if (counter % 2 == 0) printf("\n");
//printf("[0x%04X = %d] ", counter, counter);
printf("[%d] ", counter);
if (counter % 2 == 1) {
t2 = bits2val(frame_bits+HEADLEN+5*46 , 8); // LSB
t1 = bits2val(frame_bits+HEADLEN+5*46+8, 8);
ms = (t1 << 8) | t2;
std = bits2val(frame_bits+HEADLEN+5*46+17, 8);
min = bits2val(frame_bits+HEADLEN+5*46+25, 8);
printf(" ");
printf("%02d:%02d:%06.3f ", std, min, (double)ms/1000.0);
printf(" ");
//printf("\n");
}
}
if (header_found % 2 == 0) {
val = bits2val(frame_bits+HEADLEN, 16);
//printf("%04x ", val & 0xFFFF);
if ((counter % 2 == 0)) { // (val & 0xFFFF) > 0) {// == 0x8080
//offset=24+16+1;
lat1 = bits2val(frame_bits+HEADLEN+17, 16);
lat2 = bits2val(frame_bits+HEADLEN+46, 16);
lon1 = bits2val(frame_bits+HEADLEN+46+17, 16);
lon2 = bits2val(frame_bits+HEADLEN+46+46, 16);
alt1 = bits2val(frame_bits+HEADLEN+46+46+17, 16);
alt2 = bits2val(frame_bits+HEADLEN+46+46+46, 16);
lat = (lat1 << 16) | lat2;
lon = (lon1 << 16) | lon2;
alt = (alt1 << 16) | alt2;
//printf("%08X %08X %08X : ", lat, lon, alt);
printf(" ");
printf("%.6f %.6f %.2f", (double)lat/1e7, (double)lon/1e7, (double)alt/1e2);
printf(" ");
jj = bits2val(frame_bits+HEADLEN+5*46+ 8, 8) + 0x0700;
mm = bits2val(frame_bits+HEADLEN+5*46+17, 8);
tt = bits2val(frame_bits+HEADLEN+5*46+25, 8);
printf(" ");
printf("%4d-%02d-%02d ", jj, mm, tt);
printf(" ");
//printf("\n");
}
}
}
else if (option2 && !option_raw) {
if (header_found % 2 == 1) {
val = bits2val(frame_bits+HEADLEN, 16);
counter = val & 0xFFFF;
if (counter % 2 == 0) printf("\n");
//printf("[0x%04X = %d] ", counter, counter);
printf("[%d] ", counter);
if (counter % 2 == 0) {
t1 = bits2val(frame_bits+HEADLEN+5*46 , 8); // MSB
t2 = bits2val(frame_bits+HEADLEN+5*46+8, 8);
ms = (t1 << 8) | t2;
std = bits2val(frame_bits+HEADLEN+5*46+17, 8);
min = bits2val(frame_bits+HEADLEN+5*46+25, 8);
printf(" ");
printf("%02d:%02d:%06.3f ", std, min, (double)ms/1000.0);
printf(" ");
}
}
if (header_found % 2 == 0) {
val = bits2val(frame_bits+HEADLEN, 16);
//printf("%04x ", val & 0xFFFF);
if ((counter % 2 == 0)) { // (val & 0xFFFF) > 0) {// == 0x2390
//offset=24+16+1;
dat2 = bits2val(frame_bits+HEADLEN, 16);
printf("%05u (?%02d-%02d-%02d) ", dat2, dat2/1000,(dat2/10)%100, (dat2%10)+10);
lat1 = bits2val(frame_bits+HEADLEN+17, 16);
lat2 = bits2val(frame_bits+HEADLEN+46, 16);
lon1 = bits2val(frame_bits+HEADLEN+46+17, 16);
lon2 = bits2val(frame_bits+HEADLEN+46+46, 16);
alt1 = bits2val(frame_bits+HEADLEN+46+46+17, 16);
alt2 = bits2val(frame_bits+HEADLEN+46+46+46, 8);
lat = (lat1 << 16) | lat2;
lon = (lon1 << 16) | lon2;
alt = (alt1 << 8) | alt2;
latdeg = (int)lat / 1e6;
latmin = (double)(lat/1e6-latdeg)*100/60.0;
londeg = (int)lon / 1e6;
lonmin = (double)(lon/1e6-londeg)*100/60.0;
//printf("%08X %08X %08X : ", lat, lon, alt);
printf(" ");
printf("%.6f %.6f %.2f", (double)latdeg+latmin, (double)londeg+lonmin, (double)alt/1e2);
printf(" ");
}
//else { printf("\n"); }
}
}
else { // raw
val = bits2val(frame_bits, HEADLEN);
printf("%06X ", val & 0xFFFFFF);
printf(" ");
for (i = 0; i < 6; i++) {
val = bits2val(frame_bits+HEADLEN+46*i , 16);
printf("%04X ", val & 0xFFFF);
val = bits2val(frame_bits+HEADLEN+46*i+17, 16);
printf("%04X ", val & 0xFFFF);
val = bits2val(frame_bits+HEADLEN+46*i+34, 12);
//printf("%03X ", val & 0xFFF);
//printf(" ");
}
printf("\n");
}
bit_count = 0;
header_found = 0;
if (option_ecc && option_verbose) {
printf("#");
for (block = 0; block < 6; block++) printf("%X", block_err[block]);
printf("# ");
}
}
}
}
}
printf("\n");
fclose(fp);
return 0;
}
