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SoapySDR uses time stamps to prevent gaps/overflows in transmit stream

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A common option for both UHD and SoapySDR allows to turn off time stamps.
This commit is contained in:
Andreas Eversberg
2021-09-15 09:21:13 +02:00
parent 35ed2d5138
commit 8a1c5a1a5b
7 changed files with 128 additions and 46 deletions
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16
src/libsdr/sdr_config.c
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@@ -41,6 +41,7 @@ void sdr_config_init(double lo_offset)
sdr_config->stream_args = "";
sdr_config->tune_args = "";
sdr_config->lo_offset = lo_offset;
sdr_config->timestamps = 1;
got_init = 1;
}
@@ -92,10 +93,8 @@ void sdr_config_print_help(void)
printf(" Replace transmitted IQ data by given wave file.\n");
printf(" --sdr-swap-links\n");
printf(" Swap RX and TX frequencies for loopback tests over the air.\n");
#ifdef HAVE_UHD
printf(" --sdr-uhd-tx-timestamps\n");
printf(" Use TX timestamps on UHD device. (May not work with some devices!)\n");
#endif
printf(" --sdr-timestamps 1 | 0\n");
printf(" Use TX timestamps on UHD device. (default = %d)\n", sdr_config->timestamps);
}
void sdr_config_print_hotkeys(void)
@@ -124,7 +123,7 @@ void sdr_config_print_hotkeys(void)
#define OPT_READ_IQ_RX_WAVE 1516
#define OPT_READ_IQ_TX_WAVE 1517
#define OPT_SDR_SWAP_LINKS 1518
#define OPT_SDR_UHD_TX_TS 1519
#define OPT_SDR_TIMESTAMPS 1519
void sdr_config_add_options(void)
{
@@ -147,7 +146,7 @@ void sdr_config_add_options(void)
option_add(OPT_READ_IQ_RX_WAVE, "read-iq-rx-wave", 1);
option_add(OPT_READ_IQ_TX_WAVE, "read-iq-tx-wave", 1);
option_add(OPT_SDR_SWAP_LINKS, "sdr-swap-links", 0);
option_add(OPT_SDR_UHD_TX_TS, "sdr-uhd-tx-timestamps", 0);
option_add(OPT_SDR_TIMESTAMPS, "sdr-timestamps", 1);
}
int sdr_config_handle_options(int short_option, int argi, char **argv)
@@ -222,8 +221,8 @@ int sdr_config_handle_options(int short_option, int argi, char **argv)
case OPT_SDR_SWAP_LINKS:
sdr_config->swap_links = 1;
break;
case OPT_SDR_UHD_TX_TS:
sdr_config->uhd_tx_timestamps = 1;
case OPT_SDR_TIMESTAMPS:
sdr_config->timestamps = atoi(argv[argi]);
break;
default:
return -EINVAL;
@@ -257,4 +256,3 @@ int sdr_configure(int samplerate)
return 1;
}