williamp/osmocom-analog
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Implementation of RX level squelch (for A-Netz and B-Netz)

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Use -S <dB> for setting RF level or use -S auto for auto level.

When squelch closes, audio is muted. If squelch is closed for some
seconds (depending on network), call is released. (RF loss condition)

The previous loss detection has been removed
This commit is contained in:
Andreas Eversberg
2017-10-09 20:49:14 +02:00
parent f7a0e4622b
commit b32e0ab602
33 changed files with 310 additions and 263 deletions
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2
src/amps/amps.c
View File

@@ -566,7 +566,7 @@ int amps_create(int channel, enum amps_chan_type chan_type, const char *audiodev
PDEBUG(DAMPS, DEBUG_DEBUG, "Creating 'AMPS' instance for channel = %d of band %s (sample rate %d).\n", channel, band, samplerate);
/* init general part of transceiver */
rc = sender_create(&amps->sender, channel, amps_channel2freq(channel, 0), amps_channel2freq(channel, 1), audiodev, use_sdr, samplerate, rx_gain, 0, 0, write_rx_wave, write_tx_wave, read_rx_wave, read_tx_wave, loopback, 0, PAGING_SIGNAL_NONE);
rc = sender_create(&amps->sender, channel, amps_channel2freq(channel, 0), amps_channel2freq(channel, 1), audiodev, use_sdr, samplerate, rx_gain, 0, 0, write_rx_wave, write_tx_wave, read_rx_wave, read_tx_wave, loopback, PAGING_SIGNAL_NONE);
if (rc < 0) {
PDEBUG(DAMPS, DEBUG_ERROR, "Failed to init transceiver process!\n");
goto error;

2
src/amps/dsp.c
View File

@@ -851,7 +851,7 @@ static void sender_receive_audio(amps_t *amps, sample_t *samples, int length)
}
/* Process received audio stream from radio unit. */
void sender_receive(sender_t *sender, sample_t *samples, int length)
void sender_receive(sender_t *sender, sample_t *samples, int length, double __attribute__((unused)) rf_level_db)
{
amps_t *amps = (amps_t *) sender;