mirror
/
pabr-leansdr
kopia lustrzana https://github.com/pabr/leansdr
1
0
Forkuj 0
Kod Zgłoszenia Projekty Wydania Wiki Aktywność

Improve usage()

master
pabr 2017-12-14 22:12:38 +01:00
rodzic 4b8843460b
commit 63bcd9b4aa
1 zmienionych plików z 12 dodań i 10 usunięć
Pokaż statystyki Ściągnij plik aktualizacji Ściągnij plik porównania Expand all files Collapse all files

22
src/apps/leandvbtx.cc
Wyświetl plik

@ -118,7 +118,7 @@ void run(config &cfg) {
float *coeffs;
int ncoeffs = filtergen::root_raised_cosine
(order, Fm, cfg.rolloff, &coeffs);
// This yields the desired power level even without AGC.
// This yields about the desired power level even without AGC.
filtergen::normalize_power(ncoeffs, coeffs, cfg.power/cstln_amp);
if ( sch.verbose )
@ -174,7 +174,7 @@ void run(config &cfg) {
// Command-line
void usage(const char *name, FILE *f, int c) {
void usage(const char *name, FILE *f, int c, const char *info=NULL) {
fprintf(f, "Usage: %s [options] < TS > IQ\n", name);
fprintf(f, "Modulate MPEG packets into a DVB-S baseband signal\n");
fprintf(f, "Output float complex samples\n");
@ -186,14 +186,16 @@ void usage(const char *name, FILE *f, int c) {
" 16QAM .. 256QAM (experimental)\n"
" --cr STRING 1/2, 2/3, 3/4, 5/6, 7/8\n"
" -f INTERP[/DECIM] Samples per symbols (default: 2)\n"
" --roll-off FLOAT RRC roll-off (defalt: 0.35)\n"
" --rrc-rej FLOAT RRC filter rejection (defaut:10)\n"
" --power FLOAT Output power (dB)\n"
" --roll-off FLOAT RRC roll-off (default: 0.35)\n"
" --rrc-rej FLOAT RRC filter rejection (defaut: 10)\n"
" --power FLOAT Output power (dB, default: 0)\n"
" --agc Better regulation of output power\n"
" --f32 Output 32-bit floats, range +-1.0 (default)\n"
" --s16 Output 16-bit ints\n"
" -v Verbose output\n"
" -v Output debugging info at startup and exit\n"
" -d Output debugging info during operation\n"
);
if ( info ) fprintf(f, "** Error while processing '%s'\n", info);
exit(c);
}
@ -219,7 +221,7 @@ int main(int argc, char *argv[]) {
else if ( ! strcmp(argv[i], "4/5" ) ) cfg.fec = FEC45;
else if ( ! strcmp(argv[i], "8/9" ) ) cfg.fec = FEC89;
else if ( ! strcmp(argv[i], "9/10" ) ) cfg.fec = FEC910;
else usage(argv[0], stderr, 1);
else usage(argv[0], stderr, 1, argv[i]);
}
else if ( ! strcmp(argv[i], "--const") && i+1<argc ) {
++i;
@ -241,13 +243,13 @@ int main(int argc, char *argv[]) {
cfg.constellation = cstln_lut<256>::QAM64;
else if ( ! strcmp(argv[i], "256QAM" ) )
cfg.constellation = cstln_lut<256>::QAM256;
else usage(argv[0], stderr, 1);
else usage(argv[0], stderr, 1, argv[i]);
}
else if ( ! strcmp(argv[i], "-f") && i+1<argc ) {
++i;
cfg.decim = 1;
if ( sscanf(argv[i], "%d/%d", &cfg.interp, &cfg.decim) < 1 )
usage(argv[0], stderr, 1);
usage(argv[0], stderr, 1, argv[i]);
}
else if ( ! strcmp(argv[i], "--roll-off") && i+1<argc )
cfg.rolloff = atof(argv[++i]);
@ -262,7 +264,7 @@ int main(int argc, char *argv[]) {
else if ( ! strcmp(argv[i], "--s16") )
cfg.output_format = config::OUTPUT_S16;
else
usage(argv[0], stderr, 1);
usage(argv[0], stderr, 1, argv[i]);
}
run(cfg);