williamp/osmocom-analog
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osmoradio: Display wave form

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This commit is contained in:
Andreas Eversberg
2019-12-22 08:13:40 +01:00
parent 99a4bfc7f0
commit b38bb16adc
3 changed files with 31 additions and 4 deletions
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18
src/radio/radio.c
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@@ -36,7 +36,9 @@
#define PILOT_FREQ 19000.0
#define PILOT_BW 5.0
int radio_init(radio_t *radio, int latspl, int samplerate, const char *tx_wave_file, const char *rx_wave_file, const char *tx_audiodev, const char *rx_audiodev, enum modulation modulation, double bandwidth, double deviation, double modulation_index, double time_constant_us, double volume, int stereo, int rds, int rds2)
static char freq_name[2][64];
int radio_init(radio_t *radio, int latspl, int samplerate, double frequency, const char *tx_wave_file, const char *rx_wave_file, const char *tx_audiodev, const char *rx_audiodev, enum modulation modulation, double bandwidth, double deviation, double modulation_index, double time_constant_us, double volume, int stereo, int rds, int rds2)
{
int rc = -EINVAL;
@@ -232,6 +234,10 @@ int radio_init(radio_t *radio, int latspl, int samplerate, const char *tx_wave_f
if (rc < 0)
goto error;
/* init display of wave form */
sprintf(freq_name[0], "%.4f MHz", frequency / 1e6);
display_wave_init(&radio->dispwav[0], radio->rx_audio_samplerate, freq_name[0]);
/* init filters (using signal sample rate) */
switch (radio->modulation) {
case MODULATION_FM:
@@ -252,6 +258,11 @@ int radio_init(radio_t *radio, int latspl, int samplerate, const char *tx_wave_f
rc = fm_demod_init(&radio->fm_demod, radio->signal_samplerate, 0.0, 2 * radio->signal_bandwidth);
if (rc < 0)
goto error;
if (stereo) {
sprintf(freq_name[0], "%.4f MHz left", frequency / 1e6);
sprintf(freq_name[1], "%.4f MHz right", frequency / 1e6);
display_wave_init(&radio->dispwav[1], samplerate, freq_name[1]);
}
break;
case MODULATION_AM_DSB:
iir_lowpass_init(&radio->tx_am_bw_limit, radio->audio_bandwidth, radio->signal_samplerate, 1);
@@ -706,6 +717,11 @@ int radio_rx(radio_t *radio, float *baseband, int signal_num)
samples[1][i] = samples[0][i];
}
/* display wave */
display_wave(&radio->dispwav[0], samples[0], audio_num, 1.0);
if (radio->stereo && radio->rx_audio_channels == 2)
display_wave(&radio->dispwav[1], samples[1], audio_num, 1.0);
/* store received audio */
switch (radio->rx_audio_mode) {
case AUDIO_MODE_WAVEFILE: