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rtl-wmbus
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demodulated signal can be redirected into a file for audacity

master
Xael South 2024-05-10 16:51:45 +02:00
rodzic 6b2189d8fe
commit 4e6f58296b
1 zmienionych plików z 14 dodań i 12 usunięć
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rtl_wmbus.c
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@ -152,7 +152,8 @@ static const uint8_t deglitch_filter_s1[16] = {
//static FILE *demod_out = NULL;
//static FILE *demod_out2 = NULL;
static FILE *demod_out2_t1_c1 = NULL;
static FILE *demod_out2_s1 = NULL;
//static FILE *clock_out = NULL;
//static FILE *bits_out = NULL;
//static FILE *rawbits_out = NULL;
@ -872,8 +873,8 @@ static void print_usage(const char *program_name)
fprintf(stdout, "\t-v show used algorithm in the output\n");
fprintf(stdout, "\t-V show version\n");
fprintf(stdout, "\t-s receive S1 and T1/C1 datagrams simultaneously. rtl_sdr _MUST_ be set to 868.625MHz (-f 868.625M)\n");
fprintf(stdout, "\t-p [T,S] to disable processing T1/C1 or S1 mode.\n");
fprintf(stdout, "\t-f exit if flow of incoming data stops.\n");
fprintf(stdout, "\t-p [T,S] to disable processing T1/C1 or S1 mode\n");
fprintf(stdout, "\t-f exit if flow of incoming data stops\n");
fprintf(stdout, "\t-h print this help\n");
}
@ -1044,7 +1045,7 @@ void t1_c1_signal_chain(float i_t1_c1, float q_t1_c1,
//float delta_phi_t1_c1 = equalizer_t1_c1(_delta_phi_t1_c1, _delta_phi_t1_c1 >= 0.f ? 1.f : -1.f);
delta_phi_t1_c1 = t1_c1_remove_dc_offset_demod(delta_phi_t1_c1, T1_C1_DC_OFFSET_ALPHA);
//int16_t demodulated_signal = (INT16_MAX-1)*delta_phi_t1_c1;
//fwrite(&demodulated_signal, sizeof(demodulated_signal), 1, demod_out2);
//fwrite(&demodulated_signal, sizeof(demodulated_signal), 1, demod_out2_t1_c1);
// Get the bit!
unsigned bit_t1_c1 = (delta_phi_t1_c1 >= 0) ? (1u<<PACKET_DATABIT_SHIFT) : (0u<<PACKET_DATABIT_SHIFT);
@ -1136,7 +1137,7 @@ void s1_signal_chain(float i_s1, float q_s1,
//float delta_phi_s1 = equalizer_s1(_delta_phi_s1, _delta_phi_s1 >= 0.f ? 1.f : -1.f);
delta_phi_s1 = s1_remove_dc_offset_demod(delta_phi_s1, S1_DC_OFFSET_ALPHA);
//int16_t demodulated_signal = (INT16_MAX-1)*delta_phi_s1;
//fwrite(&demodulated_signal, sizeof(demodulated_signal), 1, demod_out2);
//fwrite(&demodulated_signal, sizeof(demodulated_signal), 1, demod_out2_s1);
// Get the bit!
unsigned bit_s1 = (delta_phi_s1 >= 0) ? (1u<<PACKET_DATABIT_SHIFT) : (0u<<PACKET_DATABIT_SHIFT);
@ -1210,17 +1211,15 @@ int main(int argc, char *argv[])
#if WINDOWS_BUILD == 1
_setmode(_fileno(stdin), _O_BINARY);
#else
if (argc == 1
#ifndef DEBUG
&& isatty(0)
#endif
)
#ifndef DEBUG
if (argc == 1 && isatty(0))
{
// Standard input is a terminal, print help.
print_usage(argv[0]);
exit(0);
}
#endif
#endif /* DEBUG */
#endif /* WINDOWS_BUILD == 1 */
process_options(argc, argv);
@ -1280,7 +1279,8 @@ int main(int argc, char *argv[])
}
//demod_out = fopen("demod.bin", "wb");
//demod_out2 = fopen("demod2.bin", "wb");
//demod_out2_t1_c1 = fopen("demod2_t1_c1.bin", "wb");
//demod_out2_s1 = fopen("demod2_s1.bin", "wb");
//clock_out = fopen("clock.bin", "wb");
//bits_out = fopen("bits.bin", "wb");
//rawbits_out = fopen("rawbits.bin", "wb");
@ -1356,6 +1356,8 @@ int main(int argc, char *argv[])
}
if (input != stdin) fclose(input);
if (demod_out2_t1_c1 != NULL) fclose(demod_out2_t1_c1);
if (demod_out2_s1 != NULL) fclose(demod_out2_s1);
free(LUT_FREQUENCY_TRANSLATION_PLUS_COSINE);
free(LUT_FREQUENCY_TRANSLATION_PLUS_SINE);
return EXIT_SUCCESS;