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SDR: Minor fixes

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This commit is contained in:
Andreas Eversberg
2017-01-08 12:10:56 +01:00
parent a5fd375237
commit 272ebeb0ae
2 changed files with 19 additions and 10 deletions
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16
src/common/uhd.c
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@@ -43,6 +43,7 @@ static time_t rx_time_secs = 0;
static double rx_time_fract_sec = 0.0;
static time_t tx_time_secs = 0;
static double tx_time_fract_sec = 0.0;
static int rx_gap = 0; /* if we missed samples, we fill our rx data with zeroes */
int uhd_open(const char *device_args, double tx_frequency, double rx_frequency, double rate, double rx_gain, double tx_gain)
{
@@ -316,6 +317,16 @@ int uhd_receive(float *buff, int max)
time_t last_secs = rx_time_secs;
double last_fract_sec = rx_time_fract_sec;
/* fill gap this time */
if (rx_gap) {
count = rx_gap;
if ((int)count > max)
count = max;
rx_gap -= count;
memset(buff, 0, count * sizeof(*buff) * 2);
return count;
}
if (max < (int)rx_samps_per_buff) {
PDEBUG(DUHD, DEBUG_ERROR, "SDR rx buffer too small, please fix!\n");
return 0;
@@ -343,9 +354,8 @@ int uhd_receive(float *buff, int max)
PDEBUG(DUHD, DEBUG_ERROR, "Received rate (%.0f) does not match defined rate (%.0f), use diffrent sample rate that UHD device can handle!\n", (double)count / got, samplerate);
return -EPERM;
}
int gap = diff * (double)samplerate;
PDEBUG(DUHD, DEBUG_ERROR, "Detected a gap of %.6f secods (%d samples), \n", diff, gap);
#warning fill gap
rx_gap = diff * (double)samplerate + 0.5;
PDEBUG(DUHD, DEBUG_ERROR, "Lost rx frame(s): A gap of %.6f secods (%d samples), \n", diff, rx_gap);
}
check_rate = 0;
}