osmoradio: Display wave form
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@ -34,7 +34,6 @@ enum paging_signal;
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#include "../libdebug/debug.h"
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#include "../libsdr/sdr_config.h"
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#include "../libsdr/sdr.h"
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#include "../libdisplay/display.h"
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#include "../liboptions/options.h"
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#include "radio.h"
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@ -355,7 +354,7 @@ int main(int argc, char *argv[])
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/* now we have latency and sample rate */
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latspl = samplerate * latency / 1000;
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rc = radio_init(&radio, latspl, samplerate, tx_wave_file, rx_wave_file, (tx) ? tx_audiodev : NULL, (rx) ? rx_audiodev : NULL, modulation, bandwidth, deviation, modulation_index, time_constant_us, volume, stereo, rds, rds2);
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rc = radio_init(&radio, latspl, samplerate, frequency, tx_wave_file, rx_wave_file, (tx) ? tx_audiodev : NULL, (rx) ? rx_audiodev : NULL, modulation, bandwidth, deviation, modulation_index, time_constant_us, volume, stereo, rds, rds2);
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if (rc < 0) {
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fprintf(stderr, "Failed to initialize radio with given options, exitting!\n");
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exit(0);
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@ -458,6 +457,7 @@ next_char:
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/* toggle measurements display */
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display_iq_on(0);
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display_spectrum_on(0);
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display_wave_on(0);
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display_measurements_on(-1);
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goto next_char;
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#endif
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@ -465,14 +465,23 @@ next_char:
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/* toggle IQ display */
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display_measurements_on(0);
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display_spectrum_on(0);
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display_wave_on(0);
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display_iq_on(-1);
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goto next_char;
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case 's':
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/* toggle spectrum display */
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display_measurements_on(0);
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display_iq_on(0);
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display_wave_on(0);
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display_spectrum_on(-1);
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goto next_char;
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case 'w':
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/* toggle wave display */
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display_measurements_on(0);
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display_iq_on(0);
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display_spectrum_on(0);
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display_wave_on(-1);
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goto next_char;
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case 'B':
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calibrate_bias();
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goto next_char;
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@ -36,7 +36,9 @@
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#define PILOT_FREQ 19000.0
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#define PILOT_BW 5.0
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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)
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static char freq_name[2][64];
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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)
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{
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int rc = -EINVAL;
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@ -232,6 +234,10 @@ int radio_init(radio_t *radio, int latspl, int samplerate, const char *tx_wave_f
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if (rc < 0)
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goto error;
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/* init display of wave form */
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sprintf(freq_name[0], "%.4f MHz", frequency / 1e6);
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display_wave_init(&radio->dispwav[0], radio->rx_audio_samplerate, freq_name[0]);
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/* init filters (using signal sample rate) */
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switch (radio->modulation) {
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case MODULATION_FM:
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@ -252,6 +258,11 @@ int radio_init(radio_t *radio, int latspl, int samplerate, const char *tx_wave_f
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rc = fm_demod_init(&radio->fm_demod, radio->signal_samplerate, 0.0, 2 * radio->signal_bandwidth);
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if (rc < 0)
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goto error;
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if (stereo) {
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sprintf(freq_name[0], "%.4f MHz left", frequency / 1e6);
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sprintf(freq_name[1], "%.4f MHz right", frequency / 1e6);
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display_wave_init(&radio->dispwav[1], samplerate, freq_name[1]);
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}
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break;
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case MODULATION_AM_DSB:
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iir_lowpass_init(&radio->tx_am_bw_limit, radio->audio_bandwidth, radio->signal_samplerate, 1);
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@ -706,6 +717,11 @@ int radio_rx(radio_t *radio, float *baseband, int signal_num)
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samples[1][i] = samples[0][i];
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}
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/* display wave */
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display_wave(&radio->dispwav[0], samples[0], audio_num, 1.0);
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if (radio->stereo && radio->rx_audio_channels == 2)
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display_wave(&radio->dispwav[1], samples[1], audio_num, 1.0);
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/* store received audio */
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switch (radio->rx_audio_mode) {
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case AUDIO_MODE_WAVEFILE:
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@ -5,6 +5,7 @@
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#include "../libjitter/jitter.h"
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#include "../libfm/fm.h"
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#include "../libam/am.h"
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#include "../libdisplay/display.h"
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enum modulation {
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MODULATION_NONE = 0,
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@ -48,6 +49,7 @@ typedef struct radio {
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sample_t *testtone[2]; /* test tone sample */
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int testtone_length;
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int testtone_pos;
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dispwav_t dispwav[2]; /* display wave form */
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/* signal stage */
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double signal_samplerate;
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double signal_bandwidth;
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@ -79,7 +81,7 @@ typedef struct radio {
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sample_t *carrier_buffer;
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} radio_t;
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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, double volume, int stereo, int rds, int rds2);
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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, double volume, int stereo, int rds, int rds2);
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void radio_exit(radio_t *radio);
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int radio_start(radio_t *radio);
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int radio_tx(radio_t *radio, float *baseband, int num);
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