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Merge 5b875366d9 into a443c3e8de

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Marcin Kałuża 2023-04-19 14:43:24 +02:00 committed by GitHub
parent a443c3e8de 5b875366d9
commit f566731e08
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 23 additions and 4 deletions
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27
apps/setmod2.c
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@ -26,22 +26,41 @@ static int set_property(int fd, uint32_t cmd, uint32_t data)
ret = ioctl(fd, FE_SET_PROPERTY, &c);
if (ret < 0) {
fprintf(stderr, "FE_SET_PROPERTY returned %d\n", errno);
perror("FE_SET_PROPERTY");
return -1;
}
return 0;
}
int main()
int main(int argc, char ** argv)
{
if (argc < 3) {
fprintf(stderr, "Usage: %s /dev/dvb/adapterX/modY freq[MHz] bitrate[kbit/s] [symbolrate[ksyms/s]]\n", argv[0]);
exit(1);
}
int fd;
unsigned int freq = atoi(argv[2])*1000000;
unsigned int bitrate = atoi(argv[3])*1000;
unsigned int symbol_rate = 6900000;
struct dvb_mod_params mp;
struct dvb_mod_channel_params mc;
fd = open("/dev/dvb/adapter0/mod0", O_RDONLY);
if (argc == 4) symbol_rate = atoi(argv[3]);
if (symbol_rate <= 7100) symbol_rate *= 1000;
fd = open(argv[1], O_RDONLY);
set_property(fd, MODULATOR_MODULATION, QAM_256);
set_property(fd, MODULATOR_SYMBOL_RATE, 6900000);
set_property(fd, MODULATOR_FREQUENCY, 114000000);
fprintf(stderr, "Symbol rate: %u\n", symbol_rate);
set_property(fd, MODULATOR_SYMBOL_RATE, symbol_rate);
fprintf(stderr, "Frequency: %u\n", freq);
set_property(fd, MODULATOR_FREQUENCY, freq);
fprintf(stderr, "Bitrate: %u\n", bitrate);
set_property(fd, MODULATOR_INPUT_BITRATE, bitrate);
close(fd);
}