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Measure mean signal level in the converters.

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Rearrange the meaning of the measured power level to be consistent
with the signal level.
This commit is contained in:
Oliver Jowett 2016-11-12 14:07:58 +00:00
parent 8182dc9a8f
commit cc47718a2d
5 changed files with 79 additions and 37 deletions
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9
dump1090.c
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@ -246,9 +246,10 @@ void modesInit(void) {
static void convert_samples(void *iq,
uint16_t *mag,
unsigned nsamples,
double *power)
double *mean_level,
double *mean_power)
{
Modes.converter_function(iq, mag, nsamples, Modes.converter_state, power);
Modes.converter_function(iq, mag, nsamples, Modes.converter_state, mean_level, mean_power);
}
//
@ -445,7 +446,7 @@ void rtlsdrCallback(unsigned char *buf, uint32_t len, void *ctx) {
// Convert the new data
outbuf->length = slen;
convert_samples(buf, &outbuf->data[Modes.trailing_samples], slen, &outbuf->total_power);
convert_samples(buf, &outbuf->data[Modes.trailing_samples], slen, &outbuf->mean_level, &outbuf->mean_power);
// Push the new data to the demodulation thread
pthread_mutex_lock(&Modes.data_mutex);
@ -538,7 +539,7 @@ void readDataFromFile(void) {
slen = outbuf->length = MODES_MAG_BUF_SAMPLES - toread/bytes_per_sample;
// Convert the new data
convert_samples(readbuf, &outbuf->data[Modes.trailing_samples], slen, &outbuf->total_power);
convert_samples(readbuf, &outbuf->data[Modes.trailing_samples], slen, &outbuf->mean_level, &outbuf->mean_power);
if (Modes.throttle) {
// Wait until we are allowed to release this buffer to the main thread